Yasuhisa Emoto

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Ibo-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing pyromellitic anhydride
- Patent number 6,452,021
- Issue date Sep 17, 2002
- Nippon Shokubai Co., Ltd.
- Tsukasa Takahashi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Production process for pyromellitic dianhydride
- Patent number 6,153,767
- Issue date Nov 28, 2000
- Nippon Shokubai Co Ltd
- Toshio Sagane
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for production of fluorenone
- Patent number 5,902,907
- Issue date May 11, 1999
- Nippon Shokubai Co., Ltd.
- Tsukasa Takahashi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst for production of pyromellitic anhydride and method for pr...
- Patent number 5,663,114
- Issue date Sep 2, 1997
- Nippon Shokubai Co., Ltd.
- Tsukasa Takahashi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for production pyromellitic anhydride
- Patent number 5,504,218
- Issue date Apr 2, 1996
- Nippon Shokubai Co., Ltd.
- Tsukasa Takahashi
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Process for producing pyromellitic anhydride
- Publication number 20020038039
- Publication date Mar 28, 2002
- NIPPON SHOKUBAI CO., LTD.
- Tsukasa Takahashi
- C07 - ORGANIC CHEMISTRY