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Takahiro Seki
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Tsukuba, JP
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last 30 patents
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Patent Grant
Photorecording element, method for production thereof, and the liqu...
Patent number
5,296,321
Issue date
Mar 22, 1994
Agency of Industrial Science and Technology
Yuji Kawanishi
G02 - OPTICS
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Patent Grant
Photorecording element and liquid crystal cell comprising the same
Patent number
4,963,448
Issue date
Oct 16, 1990
Agency of Industrial Science and Technology
Kunihiro Ichimura
G02 - OPTICS