129-1357: Sharp Corporation ( シャープ株式会社 , Shāpu Kabushiki-gaisha ) is a Japanese electronics company. It is headquartered in Sakai , Osaka, and was founded by Tokuji Hayakawa in 1912 in Honjo, Tokyo , and established as the Hayakawa Metal Works Institute in Abeno-ku, Osaka , in 1924. Since 2016, it is majority owned by the Taiwan-based manufacturer Hon Hai Precision Industry Co., Ltd., better known as Foxconn . Sharp makes and has made throughout its history various different consumer electronic products, including kitchen appliances such as microwave ovens , cookers, washing machines and refrigerators ; home appliances such as solar cells , vacuum cleaners , air purifiers and lighting; home and office devices such as printers , computer displays , TV sets , camcorders , VCRs , as well as calculators and various audio products such as radios , audio systems and wireless speakers . Sharp's net sales reached 2.55 trillion yen in fiscal year 2022 (ending 29 February 2024), according to Statista . This represents
258-601: A MOS Technology 8502 . Zilog was later producing a low-power Z80 suitable for the growing laptop computer market of the early 1980s. Intel produced a CMOS 8085 (80C85) used in battery-powered portable computers, such as the Kyocera -designed laptop from April 1983, also sold by Tandy (as TRS-80 Model 100 ), Olivetti, and NEC. In following years, however, CMOS versions of the Z80 (from both Zilog and Japanese manufacturers) would dominate this market as well, in products such as
387-701: A contract manufacturer . In September 2016 Sharp unveiled the Sharp INTELLOS Automated Unmanned Ground Vehicle (A-UGV) at the ASIS International 62nd Annual Seminar and Exhibits (ASIS 2016) in Orlando, Florida . In March 2017, demolition of Sharp's former headquarters began. On 28 April 2017, Sharp turned its first operating profit in three years, citing the restructuring efforts by Foxconn. In June 2017, Sharp sued its Chinese licensee Hisense for damaging
516-423: A (so-called) "close company" ( 非公開会社 , hi-kōkai gaisha ) , in which case the company (e.g. its board of directors or a shareholders' meeting, as defined in the articles of incorporation) must approve any transfer of shares between shareholders; this designation must be made in the articles of incorporation. The articles must be sealed by the incorporator(s) and notarized by a civil law notary , then filed with
645-657: A 16-bit address register HL. In the 8080, this pairing was added to the BC and DE pairs as well, while HL was generalized to allow use as a 16-bit accumulator, not just an address register. The 8080 also introduced immediate 16-bit data for BC, DE, HL, and SP loads. Furthermore, direct 16-bit copying between HL and memory was now possible, using a direct address. The Z80 orthogonalized this further by making all 16-bit register pairs, including IX and IY, more general purpose, as well as allowing 16-bit copying directly to and from memory for all of these pairs. The 16-bit IX and IY registers in
774-476: A European second-source manufacturer SGS . The design was also copied by several Japanese, Eastern European and Soviet manufacturers. This won the Z80 acceptance in the world market since large companies like NEC , Toshiba , Sharp , and Hitachi started to manufacture the device (or their own Z80-compatible clones or designs). The Z80 continued to be used in embedded systems for decades after its introduction, with ongoing advancements. The latest addition to
903-511: A K.K. is carried out by one or more incorporators ( 発起人 , hokkinin , sometimes referred to as "promoters") . Although seven incorporators were required as recently as the 1980s, a K.K. now only needs one incorporator, which may be an individual or a corporation. If there are multiple incorporators, they must sign a partnership agreement before incorporating the company. The purpose statement requires some specialized knowledge, as Japan follows an ultra vires doctrine and does not allow
1032-468: A K.K. must have a board of directors ( 取締役会 , torishimariyaku kai ) consisting of at least three individuals. Directors have a statutory term of office of two years, and auditors have a term of four years. Small companies can exist with only one or two directors, with no statutory term of office, and without a board of directors ( 取締役会非設置会社 , torishimariyaku-kai hi-setchi-gaisha ) . In such companies, decisions are made via shareholder meeting and
1161-477: A K.K. to act beyond its purposes. Judicial or administrative scriveners are often hired to draft the purposes of a new company. Additionally, the articles of incorporation must contain the following if applicable: Other matters may also be included, such as limits on the number of directors and auditors. The Corporation Code allows a K.K. to be formed as a "stock company that is not a public company" ( 公開会社でない株式会社 , kōkai gaisha denai kabushiki gaisha ) , or
1290-715: A controlling stake in Pioneer Corporation in 2007. At CES 2007, Sharp introduced a prototype largest LCD TV, with a screen size of 108 inches. In July 2008 Sharp announced that the model will go into production for the Japanese market. In 2008, Sharp collaborated with Emblaze Mobile on the Monolith , "…an ambitious project to design the ultimate holistic mobile device". The project was never brought to market. Key software developers were later picked up by other companies. On 25 June 2009, Sharp and Pioneer agreed to form
1419-405: A copyright on their assembly mnemonics, a new assembly syntax had to be developed for the Z80. This time a more systematic approach was used: These principles made it straightforward to find names and forms for all new Z80 instructions, as well as orthogonalizations of old ones, such as LD BC,1234 . Apart from naming differences, and despite a certain discrepancy in basic register structure,
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#17327730636511548-473: A day later, Faggin and Ungermann were kicking around ideas based on "integrated logic" when Ungermann said "how about Zilog?" Faggin immediately agreed, stating they could say it was the "last word in integrated logic". When they met the next day and both immediately recalled it, the company had its name. The first samples were returned from Mostek on March 9, 1976. By the end of the month, they had also completed an assembler -based development system . Some of
1677-500: A high-level design, adding several concepts of his own. In particular, he used his experience on NEC minicomputers to add the concept of two sets of processor registers so they could quickly respond to interrupts . Ungerman began the development of a series of related controllers and peripheral chips that would complement the design. Through this period, Shima developed a legendary reputation for being able to convert logic concepts into physical design in realtime; while discussing
1806-514: A joint venture comprising their optical businesses, called "Pioneer Digital Design and Manufacturing Corporation". In 2010, Sharp stopped developing PCs to focus on tablets. In 2012 Sharp unveiled the largest production TV at the time, with a screen size of 80 inches. It is part of the Aquos range and went on sale in Japan at around JP¥950,000. 2012 was the 100th anniversary for Sharp but it announced
1935-466: A low-cost product like this would not be able to compete with a design from a company with its own production lines, like Intel. They then began considering a more complex microprocessor instead, initially known as the Super 80, with the main feature being its use of a +5 V bus instead of the more common −5, +5 and 12 V used by designs like the 8080. The new design was intended to be compatible with
2064-458: A method using only the 8080-model registers. The Z80 also introduced a new signed overflow flag and complemented the fairly simple 16-bit arithmetics of the 8080 with dedicated instructions for signed 16-bit arithmetics. The 8080-compatible registers AF, BC, DE, HL are duplicated as a separate register file in the Z80, where the processor can quickly (four t-states, the least possible execution time for any Z80 instruction) switch from one bank to
2193-399: A minor issue when deciding how to structure a business in Japan. As all publicly traded companies follow the K.K. structure, smaller businesses often choose to incorporate as a K.K. simply to appear more prestigious. In addition to income taxes, K.K.s must also pay registration taxes to the national government and may be subject to local taxes. Generally, the power to bring actions against
2322-529: A modern type), and due to this big success the Sharp Corporation derived its name from it. After the pencil business was destroyed by the 1923 Great Kantō earthquake , the company relocated to Osaka and began designing the first generation of Japanese radio sets. These went on sale in 1925. The company was established as "Hayakawa Metal Works" in 1924, in Tanabe-cho, Osaka . In 1942, the name
2451-464: A partnership with Stoke City F.C. for 2 years as an Official Platinum Partner. Kabushiki-gaisha A kabushiki gaisha ( Japanese : 株式会社 , pronounced [kabɯɕi̥ki ɡaꜜiɕa] ; lit. ' share company ' ) or kabushiki kaisha , commonly abbreviated K.K. or KK , is a type of company ( 会社 , kaisha ) defined under the Companies Act of Japan . The term
2580-513: A price of less than ¥50,000 per share (effective 1982-2003 ), or operate with paid-in capital of less than ¥10 million (effective 1991–2005). On June 29, 2005, the Diet of Japan passed a new Companies Act ( 会社法 , kaisha-hō ) , which took effect on May 1, 2006. A kabushiki gaisha may be started with capital as low as ¥1, making the total cost of a K.K. incorporation approximately ¥240,000 (about US$ 2,500) in taxes and notarization fees. Under
2709-460: A proposed feature, he would often interrupt and state how much room that would take on the chip and veto its addition if it was too large. The first pass at the design was complete by April 1975. Shima had completed a logic layout by the beginning of May. A second version of the logic design was issued on August 7 and the bus details by September 16. Tape-out was completed in November and converting
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#17327730636512838-422: A regular encoding (common with the 8080) is that each of the 8-bit registers can be loaded from themselves (e.g. LD A,A ). This is effectively a NOP . New block transfer instructions can move up to 64 kilobytes from memory to memory or between memory and I/O peripheral ports. Block instructions LDIR and LDDR ( l oa d , i ncrement/ d ecrement, r epeat) use HL to point to the source address, DE to
2967-506: A relative address ( JR instead of JP ) using a signed 8-bit displacement. Only the zero and carry flags can be tested for these new two-byte JR instructions. (All 8080 jumps and calls, conditional or not, are three-byte instructions.) A two-byte instruction specialized for program looping is also new to the Z80: DJNZ ( d ecrement j ump if n on- z ero) takes a signed 8-bit displacement as an immediate operand. The B register
3096-425: A single character, U+3231 ㈱ PARENTHESIZED IDEOGRAPH STOCK as well as parentheses around U+682A 株 CJK UNIFIED IDEOGRAPH-682A and its romanization U+33CD ㏍ SQUARE KK . These forms, however, only exist for backward compatibility with older Japanese character encodings and Unicode and should be avoided when possible in new text. The first kabushiki gaisha
3225-496: A slight increase from the previous year's figure of 2.5 trillion yen. In 1912, Tokuji Hayakawa founded a metal workshop in Honjo, Tokyo . The first of his many inventions was a snap buckle named 'Tokubijo'. Another of his inventions was the Ever-Ready Sharp mechanical pencil in 1915. The product became one of the first internationally available mechanical pencils (while concurrent US design replaced it soon and became
3354-530: A system not using interrupts) it can be used as simply another 8-bit data register. The instructions LD A,R and LD A,I affect the Z80 flags register, unlike all the other LD (load) instructions. The Sign (bit 7) and Zero (bit 6) flags are set according to the data loaded from the Refresh or Interrupt source registers. For both instructions, the Parity/Overflow flag (bit 2) is set according to
3483-553: A total of $ 10 million for the entire industry being spent in all of 1975 (equivalent to $ 57 million in 2023). Someone from Exxon contacted the still-unnamed company, and arranged a meeting that eventually led to them providing an initial $ 500,000 funding in June 1975 (equivalent to $ 2.8 million in 2023). With funding being discussed, and a design to be built, Shima joined in February 1975. Shima immediately set about producing
3612-764: A turntable between 1964 and 1966. The company was renamed Sharp Corporation in 1970. Sharp produced the first LCD calculator in 1973. Sharp had a working relationship with Nintendo during the 1980s, and was granted licensing rights for the manufacture and development of the C1 NES TV (1983, later released in North America as the Sharp Nintendo Television), the Twin Famicom (1986), the Sharp Famicom Titler (1989), and
3741-428: A variable base address (as in recursive stack frames ) and can also reduce code size by removing the need for multiple short instructions using non-indexed registers. However, although they may save speed in some contexts when compared to long/complex "equivalent" sequences of simpler operations, they incur a lot of additional CPU time (e.g., 19 T-states to access one indexed memory location vs. as little as 11 to access
3870-473: A variety of monitoring and detection capabilities to extend the impact of a traditional security force. Sharp Solar is a supplier of silicon photovoltaic (PV) solar cells, and offers a solar TV. In Q1 2010, the company made the highest revenues from production of solar PV systems. For the corporate meeting room market, Sharp was the first company to bring the Windows collaboration display to market, which
3999-521: A week in order to meet the tight schedule given by the financial investors. The Z80 offered many improvements over the 8080: The Z80 took over from the 8080 and its offspring, the 8085 , in the processor market and became one of the most popular and widely used 8-bit CPUs. Some organizations such as British Telecom remained loyal to the 8085 for embedded applications, owing to their familiarity with it and to its on-chip serial interface and interrupt architecture. Likewise, Zenith Data Systems paired
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4128-432: A wholly owned subsidiary of Sharp. Sharp had first purchased Dynabook from Toshiba in 2018. Core technologies and products include LCD panels , solar panels , mobile phones , audio-visual entertainment equipment, video projectors , Multi-Function Printing Devices , microwave ovens , air conditioners , air purifiers , cash registers , CMOS and CCD sensors, and flash memory . The first commercial camera phone
4257-524: Is kabushiki gaisha , with a ⟨g⟩ , owing to rendaku . A kabushiki gaisha must include " 株式会社 " in its name (Article 6, paragraph 2 of the Companies Act). In a company name, " 株式会社 " can be used as a prefix (e.g. 株式会社 電通 , kabushiki gaisha Dentsū , a style called 前株 , mae-kabu ) or as a suffix (e.g. トヨタ自動車 株式会社 , Toyota Jidōsha kabushiki gaisha , a style called 後株 , ato-kabu ). Many Japanese companies translate
4386-759: Is a 70inch interactive display with built-in unified communication equipment and an IoT sensor hub for measuring environmental room conditions. The Windows collaboration display is conceived to be seamlessly compatible with Microsoft's Office productivity products, as well as make use of the Microsoft Azure cloud services with the IoT sensor hub generated data. Net sales for the year 2003 were $ 16.8 billion. The corporation employs 46,600 staff, of which around half live outside Japan. It operates from 64 bases in 30 countries and its products are distributed in 164 countries worldwide. Many of its regional subsidiaries trade under
4515-608: Is an 8-bit microprocessor designed by Zilog that played an important role in the evolution of early computing. Launched in 1976 and software-compatible with the Intel 8080 , it offered a compelling alternative due to its better integration and increased performance. As well as the 8080's seven registers and flags register, the Z80 had an alternate register set that duplicated them, two 16-bit index registers and additional instructions including bit manipulation and block copy/search. Initially intended for use in embedded systems like
4644-553: Is decremented, and if the result is nonzero, then program execution jumps relative to PC; the flags remain unaltered. To perform an equivalent loop on an 8080 requires separate DEC and conditional jump (to a two-byte absolute address) instructions (totalling four bytes), and the DEC alters the flag register. The index register (IX/IY, often abbreviated XY) instructions can be useful for accessing data organised in fixed heterogenous structures (such as records ) or at fixed offsets relative
4773-510: Is in context unless carefully commented. Thus it is advisable that exchange instructions be used directly and in short discrete code segments. The Zilog Z280 instruction set includes JAF and JAR instructions which jump to a destination address if the alternate registers are in context (thus officially recognizing this programming complication). As on the 8080, 8-bit registers are typically paired to provide 16-bit versions. The 8080 compatible registers are: The new registers introduced with
4902-591: Is often referred to as the "alternate register set" (by some, the "primed" register file since the apostrophe character is used to denote them in assembler source code and the Zilog documentation). This emphasizes that only one set is addressable at any time. However, the 8-bit accumulator A with its flag register F is bifurcated from the "general purpose" register pairs HL, DE and BC. This is accomplished with two separate instructions used to swap their accessibilities: EX AF,AF' exchanges only register pair AF with AF', while
5031-430: Is often translated as "stock company", " joint-stock company " or "stock corporation". The term kabushiki gaisha in Japan refers to any joint-stock company regardless of country of origin or incorporation; however, outside Japan the term refers specifically to joint-stock companies incorporated in Japan. In Latin script, kabushiki kaisha , with a ⟨k⟩ , is often used, but the original Japanese pronunciation
5160-629: Is referred to as a company with a board of statutory auditors ( 監査役会設置会社 , kansayaku-kai setchi-gaisha ) . Close K.K.s may also have a single person serving as director and statutory auditor, regardless of capital or liabilities. A statutory auditor may be any person who is not an employee or director of the company. In practice, the position is often filled by a very senior employee close to retirement, or by an outside attorney or accountant. Japanese law does not designate any corporate officer positions. Most Japanese-owned kabushiki gaisha do not have "officers" per se , but are directly managed by
5289-561: Is the ZX81 , which lets it keep track of character positions on the TV screen by triggering an interrupt at wrap around (by connecting INT to A6). The interrupt vector register , I , is used for the Z80 specific mode 2 interrupts (selected by the IM 2 instruction). It supplies the high byte of the base address for a 128-entry table of service routine addresses which are selected via an index sent to
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5418-414: Is used as the byte counter. The Z80 can input and output any register to an I/O port using register C to designate the port. (The 8080 only performs I/O through the accumulator A, using a direct port address specified in the instruction; a self-modifying code technique is required to use a variable 8080 port address.) The last group of block instructions perform a CP compare operation between
5547-564: The EXX instruction exchanges the three general purpose register pairs HL, DE and BC with their alternates HL', DE' and BC'. Thus the accumulator A can interact independently with any of the general purpose 8-bit registers in the alternate (or primed) register file, or, if HL' contains a pointer to memory, some byte there (DE' and BC' can also transfer 8-bit data between memory and accumulator A). This can become confusing for programmers because after executing EX AF,AF' or EXX what were previously
5676-729: The Amstrad NC100 , Cambridge Z88 and Tandy's own WP-2. Perhaps a key to the initial success of the Z80 was the built-in DRAM refresh, at least in markets such as CP/M and other office and home computers. (Most Z80 embedded systems use static RAM that do not need refresh.) It may also have been its minimalistic two-level interrupt system, or conversely, its general multi-level daisy-chain interrupt system useful in servicing multiple Z80 IO chips. These features allowed systems to be built with less support hardware and simpler circuit board layouts. However, others claim that its popularity
5805-586: The CP/M operating system and Intel's PL/M compiler for 8080 (as well as its generated code), would run unmodified on the new Z80 CPU. Masatoshi Shima designed most of the microarchitecture as well as the gate and transistor levels of the Z80 CPU, assisted by a small number of engineers and layout people. CEO Federico Faggin was actually heavily involved in the chip layout work, together with two dedicated layout people. According to Faggin, he worked 80 hours
5934-678: The Game Boy and TI-83 series . The Z80 was the brainchild of Federico Faggin , a key figure behind the creation of the Intel 8080. After leaving Intel in 1974, Faggin co-founded Zilog with Ralph Ungermann . The Z80 was released in July 1976. With the revenue from the Z80, the company built its own chip factories . Zilog licensed the Z80 to the US-based Synertek and Mostek , which had helped them with initial production, as well as to
6063-499: The SF-1 SNES TV (1990). All of these units are considered collectors items on the secondary market. One of the company's main inventors of LCD calculators was Tadashi Sasaki . In the 1970s and 1980s Sharp produced 8-bit home computers known as Sharp MZ and Sharp X1 based on Zilog Z80 , and even a 16/32-bit gaming computer X68000 based on Motorola 68000 . The PC (Pocket Computer) series of calculators produced by Sharp in
6192-432: The 1980s had BASIC programmability. Sharp introduced low-cost microwave ovens affordable for residential use in the late 1970s. Sharp was known as a mass marketed electronics manufacturer, known for quality, durability and affordability, however Sharp ventured into the high end stereo market in 1976 with the introduction of high end receivers, amplifiers, speakers, turntables and cassette recorders. The Optonica line as it
6321-564: The 2008 financial crisis and strong Yen (especially against Won) significantly lowered world demand for Japanese LCD panels. Furthermore, the switch to digital TV broadcasting was virtually completed in Japan by the middle of 2011. Via Japanese government issued coupons for digital TV sets, consumers were encouraged to purchase digital TV sets until March 2011. This hit the Japanese LCD TV market, reducing it almost by half from 2010. All of those events strongly hit Sharp's LCD business. As
6450-406: The 8080); the four remaining codes are used extensively as opcode prefixes : CB and ED enable extra instructions, and DD or FD select IX+d or IY+d respectively (in some cases without displacement d) in place of HL. This scheme gives the Z80 a large number of permutations of instructions and registers; Zilog categorizes these into 158 different "instruction types", 78 of which are the same as those of
6579-430: The 8080, as the Z80 sometimes indicates signed overflow where the 8080 would indicate parity, possibly causing the logic of some practical 8080 software to fail on the Z80. ) This new overflow flag is used for all new Z80-specific 16-bit operations ( ADC , SBC ) as well as for 8-bit arithmetic operations, while the 16-bit operations inherited from the 8080 ( ADD , INC , DEC ) do not affect it. Also, bit 1 of
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#17327730636516708-500: The 8080, but add many of the nice features of the Motorola 6800 , including index registers and improved interrupts . While still being set up, the industry newsletter Electronic News heard of them and published a story on the newly formed company. This attracted the attention of Exxon Enterprises, Exxon 's high-tech investment arm. At the time, in the midst of the recession, there was very little venture capital available, with
6837-559: The 8080, the Z80's combination of compatibility, affordability, and superior performance propelled it to widespread adoption in video game systems and home computers during the late 1970s and early 1980s, fueling the personal computing revolution. Products it was used in include the Osborne 1 , Radio Shack TRS-80 , ColecoVision , ZX Spectrum and the Pac-Man cabinet; in later years it remained used in portables, best known for use in
6966-676: The 8085 with the 16-bit Intel 8088 in its first MS-DOS computer, the Zenith Z-100 , despite having previous experience with its pioneering Z80-based Heathkit H89 and Zenith Z-89 products. However, other computers were made integrating the Z80 with other CPUs: the Radio Shack TRS-80 Model ;16 with a Motorola 68000 , the DEC Rainbow with an 8088, and the Commodore ;128 with
7095-513: The CPU during an interrupt acknowledge cycle; this index is simply the low byte part of the pointer to the tabulated indirect address pointing to the service routine. The pointer identifies a particular peripheral chip or peripheral function or event, where the chips are normally connected in a so-called daisy chain for priority resolution. Like the refresh register, this register has also sometimes been used creatively; in interrupt modes 0 and 1 (or in
7224-585: The Illinois Business Corporation Act of 1933, giving kabushiki gaisha many traits of American corporations , and to be more exact, Illinois corporations. Over time, Japanese and U.S. corporate law diverged, and K.K. assumed many characteristics not found in U.S. corporations. For instance, a K.K. could not repurchase its own stock (a restriction lifted by the amendment of the Commercial Code in 2001), issue stock for
7353-412: The Intel 8080 (allowing operation of all 8080 programs on a Z80). The Zilog documentation further groups instructions into the following categories (most from the 8080, others entirely new like the block and bit instructions, and others 8080 instructions with more versatile addressing modes, like the 16-bit loads, I/O, rotates/shifts and relative jumps): No explicit multiply instructions are available in
7482-588: The LCD displays produced at Sharp's plant in Sakai, Japan . In June 2012, Hon Hai chairman Terry Gou paid money for Sakai plant and got 50% ownership of the plant. However, since the announcement in March, Sharp's share price continued declining and reached JP¥192 on 3 August. Sharp deal's price was originally JP¥550 per share. Both companies agreed to renegotiate the share price, but they never came to an agreement. Sharp led
7611-478: The Legal Affairs Bureau in the jurisdiction where the company will have its head office. In a direct incorporation, each incorporator receives a specified amount of stock as designated in the articles of incorporation. Each incorporator must then promptly pay its share of the starting capital of the company, and if no directors have been designated in the articles of incorporation, meet to determine
7740-467: The Ministry of Finance. Under the new Company Law, public and other non-close K.K.s may either have a statutory auditor, or a nominating committee ( 指名委員会 , shimei-iin-kai ) , auditing committee ( 監査委員会 , kansa-iin-kai ) and compensation committee ( 報酬委員会 , hōshū-iin kai ) structure similar to that of American public corporations. If the company has an auditing committee, it
7869-570: The Sharp brand name and all its channel resources in North and South America, except Brazil. This meant that Sharp has exited the TV market in the Americas (except Brazil ). It was a sign showing Sharp's rapid decline in that market, where it once was one of the leading manufacturers for LCD TVs a decade earlier. Sharp's television market share in North America was 4.6% in 2015. However Sharp remains
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#17327730636517998-521: The Sharp licensed brands." In February 2018, Sharp dropped the lawsuit against Hisense. In 2019 Sharp re-acquired its own brand for use on TV's in the US market. In March 2020, in response to the coronavirus pandemic , Sharp announced it would use a TV factory with high-end clean rooms to manufacture surgical masks. Sharp acquired the remaining shares of Dynabook from Toshiba in August 2020, making Dynabook Inc.
8127-461: The Z80 and 8086 syntax are virtually isomorphic for a large portion of instructions. Only quite superficial similarities (such as the word MOV, or the letter X, for extended register) exist between the 8080 and 8086 assembly languages, although 8080 programs can be translated to 8086 assembly language by translator programs . The Z80 uses 252 out of the available 256 codes as single byte opcodes ("root instruction" most of which are inherited from
8256-584: The Z80 are fairly conventional, ultimately based on the register structure of the Datapoint 2200 . The Z80 was designed as an extension of the Intel 8080, created by the same engineers, which in turn was an extension of the 8008 . The 8008 was basically a PMOS implementation of the TTL-based CPU of the Datapoint 2200. The 2200 design allowed 8-bit registers H and L (High and Low) to be paired into
8385-469: The Z80 are primarily intended as base address-registers, where a particular instruction supplies a constant offset that is added to the previous values, but they are also usable as 16-bit accumulators, among other things. A limitation is that all operand references involving IX or IY require an extra instruction prefix byte, adding at least four clock cycles over the timing of an instruction using HL instead; this sometimes makes using IX or IY less efficient than
8514-424: The Z80 are: The refresh register , R , increments each time the CPU fetches an opcode (or an opcode prefix, which internally executes like a 1-byte instruction) and has no simple relationship with program execution. This has sometimes been used to generate pseudorandom numbers in games, and also in software protection schemes. It has also been employed as a "hardware" counter in some designs; an example of this
8643-522: The Z80 family is the eZ80 , which was offered alongside successor chips. Zilog announced the discontinuation of the Z80 in April 2024 after nearly five decades of production. At Fairchild Semiconductor , and later at Intel , physicist and engineer Federico Faggin had been working on fundamental transistor and semiconductor manufacturing technology. He also developed the basic design methodology used for memories and microprocessors at Intel and led
8772-455: The Z80 support and peripheral ICs were under development at this point, and many of them were launched during the following year. Among them were the Z80 CTC (counter/timer), Z80 DMA (direct memory access), Z80 DART (dual asynchronous receiver–transmitter), Z80 SIO (synchronous communication controller), and Z80 PIO (parallel input/output). The Z80 was officially launched in July 1976. One of
8901-470: The Z80. However, this would likely be erroneous code on the 8080, as DAA was defined for addition only on that processor. The Z80 has six new LD instructions that can load the DE, BC, and SP register pairs from memory, and load memory from these three register pairs—unlike the 8080. As on the 8080, load instructions do not affect the flags (except for the special-purpose I and R register loads). A result of
9030-464: The alternate (primed) registers are now the main registers, and vice versa. The only way for the programmer to tell which set(s) are in context (while "playing computer" while scrutinizing the assembler source text, or worse, poring over code with a debugger) is to trace where each register swap is made at each point in the program. Obviously if many jump and calls are made within these code segments it can quickly become difficult to tell which register file
9159-513: The amount of damages being claimed, shareholders rarely had the motivation to sue on the company's behalf. In 1993, the Commercial Code was amended to reduce the filing fee for all shareholder derivative suits to ¥8,200 per claim. This led to a rise in the number of derivative suits heard by Japanese courts, from 31 pending cases in 1992 to 286 in 1999, and to a number of very high-profile shareholder actions, such as those against Daiwa Bank and Nomura Securities Zilog Z80 The Zilog Z80
9288-566: The biggest television brand in the Japanese market. In October 2015 Sharp announced a smartphone that also works as a robot, called RoboHon. It would be sold in 2016 in Japan . Sharp began selling the world's first commercially available TV with a 8K resolution in October 2015. The 85-inch LV-85001 model costs JP¥16 million (US$ 133,000). Japanese public broadcaster NHK will have test broadcasts at 8K starting 2016, with regular services expected by
9417-435: The business market, Sharp also produces projectors and monitors and a variety of photocopiers and Laser Printers , in addition to electronic cash registers and Point of sale technologies . For the private security industry, Sharp produces an Automated Unmanned Ground Vehicle (A-UGV) named INTELLOS , which utilizes a navigation surveillance platform also developed by Sharp. The system combines automation, mobility, and
9546-624: The business-to-business sector including multi-function printers and energy solutions. In 2017 Sharp acquired a majority (56.7%) shareholding in Skytec UMC, which included the UMC Poland factory. On 8 November 2008, the United States Department of Justice announced that Sharp had agreed to pay $ 120 million (United States Dollar) as a criminal fine. According to the announcement, Sharp participated in conspiracies to fix
9675-456: The byte at (HL) and the accumulator A. Register pair DE is not used. The repeating versions CPIR and CPDR only terminate if BC goes to zero or a match is found. HL is left pointing to the byte after ( CPIR ) or before ( CPDR ) the matching byte. If no match is found the Z ;flag is reset. There are non-repeating versions CPI and CPD . Unlike the 8080, the Z80 can jump to
9804-495: The climate, produce greener products, and make their operations more sustainable. Greenpeace summarizes the corporation's environmental record thus: "Sharp supports a new renewable energy law in Japan but scores poor on all sustainable operations criteria". Sharp scored 3/10 and received most of its points on the Products criteria where the company was praised for the energy efficiency of its products with all of its TVs meeting
9933-502: The current state of the IFF2 flip-flop. Although the Z80 is generally considered an eight-bit CPU, it has a four-bit ALU , so calculations are done in two steps. The first Intel 8008 assembly language was based on a very simple (but systematic) syntax inherited from the Datapoint 2200 design. This original syntax was later transformed into a new, somewhat more traditional, assembly language form for this same original 8008 chip. At about
10062-425: The decision-making power of the directors is relatively limited. As soon as a third director is designated such companies must form a board. At least one director is designated as a Representative Director ( 代表取締役 , daihyō-torishimariyaku ) , holds the corporate seal and is empowered to represent the company in transactions. The Representative Director must "report" to the board of directors every three months;
10191-415: The design directly. Faggin thought this would mean they could never compete even if they set up their own lines, and the agreement fell through. He then turned to Mostek, who agreed to a term of exclusivity while Zilog got their lines set up, and were eventually given the second source agreement. After considering many names for the new company, and finding them so unmemorable they could not recall them even
10320-482: The design. Sometime later, Shima was told by an engineer within NEC that the traps had delayed their copying efforts by six months. The successful launch allowed Faggin and Ungermann to approach Exxon looking for funding to build their own fab. The company agreed, and Zilog built a production line very rapidly. This allowed them to capture about 60 to 70% of the total market for Z80 sales. With their own line running, Mostek
10449-571: The destination address, and BC as a byte counter. Bytes are copied from source to destination, the pointers are incremented or decremented, and the byte counter is decremented until BC reaches zero. Non-repeating versions LDI and LDD move a single byte and bump the pointers and byte counter, which if it becomes zero resets the P/V ;flag. Corresponding memory-to-I/O instructions INIR , INDR , OTIR , OTDR , INI , IND , OUTI and OUTD operate similarly, except that B, not BC,
10578-415: The directors on the corporation's behalf is granted to the statutory auditor. Historically, derivative suits by shareholders were rare in Japan. Shareholders have been permitted to sue on the corporation's behalf since the postwar Americanization of the Commercial Code; however, this power was severely limited by the nature of court costs in Japan. Because the cost to file a civil action is proportional to
10707-618: The directors, one of whom generally has the title of president ( 社長 , sha-chō ) . The Japanese equivalent of a corporate vice president is a department chief ( 部長 , bu-chō ) . Traditionally, under the lifetime employment system, directors and department chiefs begin their careers as line employees of the company and work their way up the management hierarchy over time. This is not the case in most foreign-owned companies in Japan, and some native companies have also abandoned this system in recent years in favor of encouraging more lateral movement in management. Corporate officers often have
10836-417: The exact meaning of this statutory provision is unclear, but some legal scholars interpret it to mean that the board must meet every three months. In 2015, the requirement that at least one director and one Representative Director must be a resident of Japan was changed. It is not required to have a resident Representative Director although it can be convenient to do so. Directors are mandatories ( agents ) of
10965-494: The fewest points in the guide in the Sustainable Operations category, scoring no points for chemical management due to not communicating commitments made on phasing out hazardous substances in its supply chain. The guide also notes that Sharp had lacked any initiative to address the issue of conflict minerals and the exclusion of paper sourced from suppliers involved in illegal logging or deforestation. Sharp
11094-430: The first customers was a buyer who, unknown to Zilog, worked for NEC. At the time, the Japanese electronics companies were well known for taking US chip designs and producing them without a license. The Zilog team had worried about this, and Faggin had come up with the idea of adding transistors that would be subtly modified to operate differently than a visual inspection would suggest. Shima added six of these "traps" around
11223-513: The flags register (a spare bit on the 8080) is used as a flag N that indicates whether the last arithmetic instruction executed was a subtraction or addition. The Z80 version of the DAA instruction (decimal adjust accumulator for BCD arithmetic) checks the N ;flag and behaves accordingly, so a (hypothetical) subtraction followed later by DAA will yield a different result on an old 8080 than on
11352-513: The formerly independent sections under the direction of Les Vadasz, further diluting the microprocessor's place in the company. That year, the 1973–1975 recession reached a peak and Intel laid off a number of employees. All of this led to Faggin becoming restless, and he invited Ungermann out for drinks and asked if he would be interested in starting their own company. Ungermann immediately agreed, and as he had less to do at Intel, left in August or September, followed by Faggin, whose last day at Intel
11481-404: The incorporator, and then make payment for his or her shares by a date specified by the incorporator(s). Capital must be received in a commercial bank account designated by the incorporator(s), and the bank must provide certification that payment has been made. Once the capital has been received and certified, the incorporation may be registered at the Legal Affairs Bureau. Under present law,
11610-470: The initial directors and other officers. The other method is an "incorporation by offering," in which each incorporator becomes the stock underwriter of a specified number of shares (at least one each), and the other shares are offered to other investors. As in a direct incorporation, the incorporators must then hold an organizational meeting to appoint the initial directors and other officers. Any person wishing to receive shares must submit an application to
11739-631: The introductory 2.5 MHz , via the well known 4 MHz (Z80A), up to 6 MHz (Z80B) and 8 MHz (Z80H). The NMOS version has been produced as a 10 MHz part since the late 1980s. CMOS versions were developed with specified upper frequency limits ranging from 4 MHz up to 20 MHz for the version sold today. The CMOS versions allowed low-power standby with internal state retained, having no lower frequency limit. The fully compatible derivatives HD64180 / Z180 and eZ80 are currently specified for up to 33 MHz and 50 MHz, respectively. The programming model and register set of
11868-495: The latest Energy Star standard. It also gained some points for having a relative long term target to reduce CO 2 emissions by two percent (per production unit) compared to the previous year, yet sets out no clear target for absolute reductions. The company was also praised for its public support for a clean energy policy, after advocating the Japanese Government to increase the use of renewable energy. Sharp scored
11997-437: The legal title of shihainin , which makes them authorized representatives of the corporation at a particular place of business, in addition to a common-use title. Kabushiki gaisha are subject to double taxation of profits and dividends, as are corporations in most countries. In contrast to many other countries, however, Japan also levies double taxes on close corporations ( yugen gaisha and gōdō gaisha ). This makes taxation
12126-615: The market share of mobile phones in the Japanese market in April 2012. Sharp announced it accepted a US$ 100 million investment from Samsung in March 2013. In 2013 Sharp developed the most efficient solar cell, converting a record 44.4% of sunlight into electricity. In 2013, Sharp Corporation was the tenth-largest, by market share, television manufacturer in the world. In Japan it has been a long-time leader. After years of huge losses in its overseas TV business, Sharp sold its Mexico TV factory to Chinese electronics manufacturer Hisense for $ 23.7 million in July 2015. The sale includes rights to use
12255-433: The more literal translation "stock company." Japanese often abbreviate " 株式会社 " in a company name on signage (including the sides of their vehicles) to 株 in parentheses , as, for example, " ABC㈱ ." The full, formal name would then be " ABC株式会社 ". 株式会社 is also combined into one Unicode character at code point U+337F ㍿ SQUARE CORPORATION , while the parenthesized form can also be represented with
12384-774: The name Sharp Electronics. Sharp was among the Top 100 R&D Spenders in a list published by the IEEE Spectrum magazine in 2002. Sharp's headquarters are at 1 Takumi-chō, Sakai-ku, Sakai, Japan. Until the relocation to Sakai in 2016, the headquarters were in Abeno-ku, Osaka where Hayakawa restarted the business in the 1920s. In 2007 Sharp opened a LCD manufacturing plant in Poland. The plant initially manufactured LCD modules using LCD panels imported from Sharp Japan. In September 2014, Sharp announced that Slovakian electronics company UMC ( Universal Media Corporation /Slovakia/ s.r.o. )
12513-422: The old Commercial Code, a K.K. required starting capital of ¥10 million (about US$ 105,000); a lower capital requirement was later instituted, but corporations with under ¥3 million in assets were barred from issuing dividends , and companies were required to increase their capital to ¥10 million within five years of formation. The main steps in incorporation are the following: The incorporation of
12642-426: The original Z80 (being 1 clock slower than in the 8080/8085); nonetheless, they are about twice as fast as performing the same calculations using 8-bit operations, and equally important, they reduce register usage. It was not uncommon for programmers to "poke" different offset displacement bytes (which were typically calculated dynamically) into indexed instructions; this is an example of self-modifying code , which
12771-407: The original Z80, though registers A and HL can be multiplied by powers of two with ADD A,A and ADD HL,HL instructions (similarly IX and IY also). Shift instructions can also multiply or divide by powers of two. Different sizes and variants of additions, shifts, and rotates have somewhat differing effects on flags because most of the flag-changing properties of the 8080 were copied. However,
12900-483: The other; a feature useful for speeding up responses to single-level, high-priority interrupts. A similar feature was present in the 2200, but was never implemented at Intel. The dual register-set is very useful in the embedded role, as it improves interrupt handling performance, but found widespread use in the personal computer role as an additional set of general registers for complex code like floating-point arithmetic or home computer games. The duplicate register file
13029-418: The parity flag bit P of the 8080 (bit 2) is called P/V (parity/overflow) in the Z80 as it serves the additional purpose of a twos complement overflow indicator, a feature lacking in the 8080. Arithmetic instructions on the Z80 set it to indicate overflow rather than parity, while bitwise instructions still use it as a parity flag. (This introduces a subtle incompatibility of the Z80 with code written for
13158-521: The phrase " 株式会社 " in their name as " Company, Limited "—this is very often abbreviated as " Co., Ltd. "—but others use the more Americanized translations "Corporation" or "Incorporated". Texts in England often refer to kabushiki kaisha as " joint stock companies ". While that is close to a literal translation of the term, the two are not precisely the same. The Japanese government once endorsed "business corporation" as an official translation but now uses
13287-463: The price of TFT LCD panel for Dell's computer monitors and laptops (2001–2005), Motorola 's Razr phones (2005–2006) and Apple's iPod (2005–2006). On 18 December 2008, Japan Fair Trade Commission ordered Sharp to pay JP¥261 million (US$ 3 million) as criminal fine. According to the order, Sharp and Hitachi Display participated in the conspiracies to keep the price for TFT LCD panels for Nintendo DS and DS-Lite. The fine for Hitachi Displays
13416-514: The reputation of its brand, seeking an exit from its licensing agreement. Sharp accused the company of producing "shoddily manufactured" televisions under the Sharp name, including products they believed were in violation of U.S. safety standards for electromagnetic radiation , and the subject of deceptive advertising over their quality. Hisense denied that it engaged in these practices, and stated that it planned to defend itself in court and "will continue to manufacture and sell quality televisions under
13545-487: The result, the Sakai LCD plant suffered a reduced operating rate until Q3 2012. In June 2005 Sharp produced the largest LCD television at the time, with a display of 65 inches. It went on sale in August 2005 in Japan. From 2005 to 2010 Sharp was the biggest mobile phone brand in Japan. Since then it has been constantly switching places through financial quarters against rivals Fujitsu , Apple and Sony . Sharp acquired
13674-535: The same memory using HL and INC to point to the next). Thus, for simple or linear accesses of data, use of IX and IY tend to be slower and occupy more memory. Still, they may be useful in cases where the "main" registers are all occupied, by removing the need to save/restore registers. Their officially undocumented 8-bit halves (see below) can be especially useful in this context, for they incur less slowdown than their 16-bit parents. Similarly, instructions for 16-bit additions are not particularly fast (11 clocks) in
13803-517: The same time, the new assembly language was also extended to accommodate the additional addressing modes in the more advanced Intel 8080 chip (the 8008 and 8080 shared a language subset without being binary compatible ; however, the 8008 was binary compatible with the Datapoint 2200). In this process, the mnemonic L , for LOAD , was replaced by various abbreviations of the words LOAD , STORE and MOVE , intermixed with other symbolic letters. The mnemonic letter M , for memory (referenced by HL),
13932-732: The shareholders, and the Representative Director is a mandatory of the board. Any action outside of these mandates is considered a breach of mandatory duty. Every K.K. with multiple directors must have at least one statutory auditor ( 監査役 , kansayaku ) . Statutory auditors report to the shareholders, and are empowered to demand financial and operational reports from the directors. K.K.s with capital of over ¥500m, liabilities of over ¥2bn and/or publicly traded securities are required to have three statutory auditors, and must also have an annual audit performed by an outside CPA . Public K.K.s must also file securities law reports with
14061-438: The tape into a production mask required two more months. Faggin had already started looking for a production partner. By this time, Synertek and Mostek had both set up the depletion-mode production lines that could be used to produce the design. Having talked to Synertek previously, Faggin approached them first. However, the president of Synertek demanded that the company be given a second source license, allowing them to sell
14190-511: The time of the Tokyo 2020 Olympics . On 25 February 2016, Foxconn announced its intent to acquire a 66% controlling stake in Sharp for 700 billion yen (US$ 6.24 billion). However, the deal was briefly delayed due to unforeseen financial liabilities; on 30 March 2016, Foxconn announced that it had agreed to pay US$ 3.5 billion for the stake instead, Foxconn wished to use the purchase to expand into direct-to-consumer product sales rather than serving as
14319-421: The time. Two years later, in 1966, Sharp introduced its first IC calculator using 145 Mitsubishi Electric -made bipolar ICs, priced at JP¥350,000 (about US$ 1000). Its first LSI calculator was introduced in 1969. This was the first pocketable calculator priced at less than JP¥100,000 (less than US$ 300), and turned out to be a popular item. Also in the same era the company introduced the first microwave oven with
14448-409: The value should be used as a memory address (as mentioned below), while the 8086 syntax uses brackets instead of ordinary parentheses for this purpose. Both Z80 and 8086 use the + sign to indicate that a constant is added to a base register to form an address. Note that the 8086 is not a complete superset of the Z80. BX is the only 8086 register pair that can be used as a pointer. Because Intel claimed
14577-478: The work on the Intel 4004 , the Intel 8080 and several other ICs. Masatoshi Shima was the principal logic and transistor-level designer of the 4004 and the 8080 under Faggin's supervision, while Ralph Ungermann was in charge of custom integrated circuit design. In early 1974, Intel viewed their microprocessors not so much as products to be sold on their own but as a way to sell more of their main products, static RAM and ROM . A reorganization placed many of
14706-439: The worst financial record in its history, with a loss of JP¥376 billion (US$ 4.7 billion) in April 2012. In September, Sharp announced job cuts. In 2014, Sharp was able to stem losses and deliver a positive net income for its first quarter results. In March 2012 the Taiwan-based electronics company Hon Hai, trading as Foxconn , agreed to acquire a 10% stake in Sharp Corporation for US$ 806 million, and to purchase up to 50 percent of
14835-407: Was Halloween 1974. When Shima heard, he asked to come to the new company as well, but having no actual product design or money, they told him to wait. The newly formed and unnamed company initially began designing a single-chip microcontroller called the 2001. They met with Synertek to discuss fabrication on their lines, and when Faggin began to understand the costs involved it became clear that
14964-799: Was acquiring an exclusive brand licence from Sharp and its European television and audio business UMC will also acquire Sharp's Polish factory. As part of the deal, Sharp will support the design and development of televisions sold by UMC under the Sharp brand. The same month, Sharp also announced a tie-up with Vestel in Europe for white goods. Vestel will sell Sharp-branded white goods (except air conditioners), such as refrigerators and microwave ovens manufactured by Sharp in Thailand and China. Sharp will also license its brand name to Vestel for volume home appliances such as refrigerators, washing machines and ovens. Sharp's remaining European business will then focus on
15093-546: Was again changed, in 1981, and moved mainly into digital high end, complete stereo systems with advanced technological features setting the trend towards the digital age. The line was discontinued after 1981, but the Optonica line was again re-introduced in the late 1980s for a high end line of television receivers and higher quality mass market audio products such as VCR's, surround sound receivers, CD cassette boom boxes, and portable cassette players. The first wall-mountable TV
15222-692: Was also made by Sharp for the Japanese market in November 2000. Recent products include the ViewCam, the Ultra-Lite notebook PC , the Zaurus personal digital assistant , Sidekick 3 , and the AQUOS flat-screen television. Sharp manufactures consumer electronic products, including LCD televisions , sold under the Aquos brand, mobile phones , microwave ovens , Home cinema and audio systems, air purification systems, fax machines and calculators . For
15351-406: Was called, consisted of high quality and technically advanced components, that was expanded in 1979, to cover a broader selection of high end equipment. During this run, Sharp introduced digital technology to some of the Optonica products, along with the traditional analogue products, and offered a complete selection of models ranging from low power high end receivers to very powerful models. The line
15480-464: Was changed to "Hayakawa Electric Industry Company". In 1953, Hayakawa Electric started producing the first Japan-made TV sets (the "Sharp TV3-14T"). In 1964, the company developed the world's first transistor calculator (the Sharp CS-10A), which was priced at JP ¥ 535,000 (US$ 1,400). It took Sharp several years to develop the product as they had no experience in making computing devices at
15609-454: Was due to the duplicated registers that allowed fast context switches or more efficient processing of things like floating-point math compared to 8-bit CPUs with fewer registers. (The Z80 can keep several such numbers internally, using HL'HL, DE'DE and BC'BC as 32-bits registers, avoiding having to access them from slower RAM during computation.) For the original NMOS design, the specified upper clock-frequency limit increased successively from
15738-460: Was given the go-ahead to start sales of their own versions, the MK3880, which provided a second-source for customers which Intel lacked. At the time, a second-source was considered extremely important as a start-up like Zilog might go out of business and leave potential customers stranded. Faggin designed the instruction set to be binary compatible with the 8080 so that most 8080 code, notably
15867-472: Was introduced by Sharp in 1992. Sharp's Mobile Communications Division created the world's first commercial camera phone , the J-SH04 , in Japan in 2000. Since 2000, Sharp heavily invested in LCD panel manufacturing plants: Kameyama in 2004, Sakai in 2009. The Sakai plant is still the only 10th generation LCD manufacturing plant on the globe and its best fit for production of 60-inch or larger panels. However,
15996-546: Was lifted out from within the instruction mnemonic to become a syntactically freestanding operand , while registers and combinations of registers became very inconsistently denoted; either by abbreviated operands (MVI D, LXI H and so on), within the instruction mnemonic itself (LDA, LHLD and so on), or both at the same time (LDAX B, STAX D and so on). Illustration of four syntaxes, using samples of equivalent, or (for 8086) very similar, load and store instructions. The Z80 syntax uses parentheses around an expression to indicate that
16125-531: Was regular practice on nearly all early 8-bit processors with non- pipelined execution units. The index registers have a parallel instruction to JP (HL) , which is JP (XY) . This is often seen in stack-oriented languages like Forth , which at the end of every Forth word (atomic subroutines comprising the language) must jump unconditionally back to their thread interpreter routines. Typically this jump instruction appears many hundreds of times in an application, and using JP (XY) rather than JP THREAD saves
16254-509: Was sponsor on Red Star Belgrade shirts during their campaign in UEFA Cup and UEFA Champions League . From 2001 to 2003, Sharp was the main shirt sponsor of Inverness Caledonian Thistle F.C. in the SFL. In June 2012, Sharp became name sponsor of a UCI World Tour cycling team, which thereupon became known as Garmin–Sharp . In September 2016, Sharp (in conjunction with Altodigital) signed
16383-632: Was the Dai-Ichi Bank , incorporated in 1873. Rules regarding kabushiki gaisha were set out in the Commercial Code of Japan , and was originally based on laws regulating German Aktiengesellschaft (which also means share company). However, during the United States-led Allied Occupation of Japan following World War II, the occupation authorities introduced revisions to the Commercial Code based on
16512-505: Was the principal sponsor of Manchester United Football Club from 1983 until 2000, in one of the lengthiest and most lucrative sponsorship deals in English football . Sharp's logo was on the front of United's shirts over these 17 years, during which the team won seven Premier League titles, five FA Cups , one Football League Cup , one UEFA Cup Winners' Cup , and one UEFA Champions League title. During 2002/03 and 2003/04 seasons, Sharp
16641-489: Was waived by JFTC leniency program. However, Sharp disagreed with the JFTC order and announced it would begin an appeals procedure against it on 2 February 2009. On 31 July 2013, the JFTC dismissed Sharp's appeal. In November 2011 Sharp was ranked in 11th place by Greenpeace 's re-launched Guide to Greener Electronics that ranks 15 electronics manufacturers according to their policies and practices to reduce their impact on
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