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Frame buffer memory for display
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Patent number 4,980,765
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Issue date Dec 25, 1990
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Hitachi, Ltd.
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Yoshimichi Kudo
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Display control circuit
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Patent number 4,677,427
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Issue date Jun 30, 1987
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Hitachi, Ltd.
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Shigeru Komatsu
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Pattern display apparatus
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Patent number 4,408,197
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Issue date Oct 4, 1983
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Hitachi, Ltd.
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Shigeru Komatsu
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Memory selecting system
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Patent number 4,388,707
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Issue date Jun 14, 1983
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Hitachi, Ltd.
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Shigeru Komatsu
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G06 - COMPUTING CALCULATING COUNTING
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Digital data processing device
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Patent number 4,368,461
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Issue date Jan 11, 1983
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Hitachi, Ltd.
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Shigeru Komatsu
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS