Shinkichi Asahi

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Kanagawa, JP

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Patents Grantslast 30 patents

Information 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
Information 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 Applicationslast 30 patents

Information 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