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Kiyomi Sugawara
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Sendai, JP
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last 30 patents
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Patent Grant
Alignment layer for liquid crystal element and method of producing...
Patent number
5,486,403
Issue date
Jan 23, 1996
Alps Electric Co., Ltd.
Yoshihiko Ishitaka
G02 - OPTICS
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Patent Grant
Orientation film of liquid crystal having bilaterally asymmetric ri...
Patent number
5,438,421
Issue date
Aug 1, 1995
Alps Electric Co., Ltd.
Kiyomi Sugawara
G02 - OPTICS