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Yasutaka Shimidzu
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Osaka, JP
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last 30 patents
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Patent Grant
Electrochromic display devices
Patent number
4,752,119
Issue date
Jun 21, 1988
Toshihiko Ueno
G02 - OPTICS
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Patent Grant
Reactive pyridone azo dyes having both monochlorotriazinyl and viny...
Patent number
4,644,058
Issue date
Feb 17, 1987
Sumitomo Chemical Company, Limited
Yasutaka Shimidzu
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Liquid crystal dye compound
Patent number
4,632,781
Issue date
Dec 30, 1986
Sumitomo Chemical Company, Limited
Yasutaka Shimidzu
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Liquid crystal display device
Patent number
4,505,549
Issue date
Mar 19, 1985
Sumitomo Chemical Company, Limited
Yasutaka Shimidzu
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...