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Teizou Yukawa
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Kobe, JP
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last 30 patents
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Patent Grant
Liquid crystal display element and method for treating defective pi...
Patent number
5,121,236
Issue date
Jun 9, 1992
Hosiden Corporation
Yasuhiro Ukai
G02 - OPTICS
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Patent Grant
Active matrix liquid crystal display device having improved electro...
Patent number
5,068,748
Issue date
Nov 26, 1991
Hosiden Corporation
Yasuhiro Ukai
G02 - OPTICS