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Shinkichi Asahi
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Kanagawa, JP
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Patents Grants
last 30 patents
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Patent Grant
Photosensitive resin compositions and photosensitive dry films usin...
Patent number
8,372,577
Issue date
Feb 12, 2013
Tokyo Ohka Kogyo Co., Ltd.
Yukihiko Tanaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Patent Grant
Photosensitive composition for sandblasting and photosensitive film...
Patent number
6,322,947
Issue date
Nov 27, 2001
Tokyo Ohka Kogyo Co., Ltd.
Ryuma Mizusawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
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Patent Application
Photosensitive resin compositions and photosensitive dry films usin...
Publication number
20110065046
Publication date
Mar 17, 2011
Yukihiko Tanaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY