Yasuhisa Tsutsumi

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Organic electroluminescent device
- Patent number 8,986,858
- Issue date Mar 24, 2015
- Nippon Steel & Sumikin Chemical Co., Ltd.
- Masashi Tada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing 2,6-naphthalene-dicarboxylic acid
- Patent number 5,175,354
- Issue date Dec 29, 1992
- Nippon Steel Chemical Co., Ltd.
- Shuichi Mitamura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of aromatic carboxylic acids
- Patent number 5,081,252
- Issue date Jan 14, 1992
- Nippon Steel Corporation
- Shuichi Mitamura
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE
- Publication number 20120319095
- Publication date Dec 20, 2012
- Nippon Steel Chemical Co., Ltd
- Masashi Tada
- C07 - ORGANIC CHEMISTRY