Shigeru Otawa

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Zama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Photopolymerizable resin composition employing (meth)acrylonitrile...
- Patent number 5,236,809
- Issue date Aug 17, 1993
- Tokyo Ohka Kogyo Co., Ltd.
- Junichi Onodera
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photopolymerizable composition including benzotriazole carboxylic acid
- Patent number 4,741,987
- Issue date May 3, 1988
- Photopoly Ohka Co., Ltd.
- Hiroyuki Tohda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photosensitive resin composition containing diazodiphenylamine-alde...
- Patent number 4,304,832
- Issue date Dec 8, 1981
- Tokyo Ohka Kogyo Kabushiki Kaisha
- Katsuyuki Ohta
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY