Yasushi Koishikawa

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Fukuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polymer for organic electroluminescent element, and organic electro...
- Patent number 8,945,726
- Issue date Feb 3, 2015
- Nippon Steel & Sumikin Chemical Co., Ltd.
- Hiroshige Tanaka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Organic electroluminescent device with host materials having same o...
- Patent number 8,795,852
- Issue date Aug 5, 2014
- Nippon Steel & Sumikin Chemical Co., Ltd.
- Tohru Asari
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
POLYMER FOR ORGANIC ELECTROLUMINESCENT ELEMENT, AND ORGANIC ELECTRO...
- Publication number 20120313513
- Publication date Dec 13, 2012
- Hiroshige Tanaka
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE
- Publication number 20120001158
- Publication date Jan 5, 2012
- Tohru Asari
- C07 - ORGANIC CHEMISTRY