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Shigeharu Yoshikawa
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Tokyo, JP
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last 30 patents
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Patent Grant
Projection-type liquid crystal display apparatus
Patent number
6,072,459
Issue date
Jun 6, 2000
Mitsubishi Denki Kabushiki Kaisha
Katsumi Asakawa
G02 - OPTICS
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Patent Grant
Projection-type liquid crystal display device
Patent number
6,072,458
Issue date
Jun 6, 2000
Mitsubishi Denki Kabushiki Kaisha
Katsumi Asakawa
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS