Michiko Torigoe

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Toner for electrophotography
- Patent number 5,061,589
- Issue date Oct 29, 1991
- Nippon Kayaku Kabushiki Kaisha
- Seijin Shindoh
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Toners for electrophotographic process containing chromium complex...
- Patent number 4,824,751
- Issue date Apr 25, 1989
- Nippon Kayaku Kabushiki Kaisha
- Toshihiko Matuura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Contrast ratio improving method for liquid crystal projector
- Publication number 20070040970
- Publication date Feb 22, 2007
- Kenichiro Yoshioka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Contrast ratio improving method for liquid crystal projector
- Publication number 20030112414
- Publication date Jun 19, 2003
- Kenichiro Yoshioka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE