Shigetaka Ishikawa

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Fukuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Aminodibenzodioxin derivative and organic electroluminescent using...
- Patent number 7,605,277
- Issue date Oct 20, 2009
- Nippon Steel Chemical Co., Ltd.
- Takahiro Kai
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Aminodibenzodioxin derivative and organic electroluminescent using...
- Publication number 20070129555
- Publication date Jun 7, 2007
- Takahiro Kai
- C07 - ORGANIC CHEMISTRY