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Liquid crystal driving circuit
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Patent number 6,229,530
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Issue date May 8, 2001
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Kabushiki Kaisha Toshiba
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Hiroshi Ushiki
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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-
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Display control circuit
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Patent number 4,958,151
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Issue date Sep 18, 1990
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Kabushiki Kaisha Toshiba
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Hiroshi Ushiki
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G06 - COMPUTING CALCULATING COUNTING
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Key circuit
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Patent number 4,701,748
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Issue date Oct 20, 1987
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Kabushiki Kaisha Toshiba
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Hiroshi Ushiki
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H03 - BASIC ELECTRONIC CIRCUITRY
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Input device
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Patent number 4,587,519
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Issue date May 6, 1986
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Tokyo Shibaura Denki Kabushiki Kaisha
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Eiichi Munetsugu
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G06 - COMPUTING CALCULATING COUNTING