Hiroyuki Uhara

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Patents Grantslast 30 patents

Information Patent Grant
Method for production of methacrylic acid
- Patent number 7,253,309
- Issue date Aug 7, 2007
- Nippon Shokubai Co., Ltd
- Hiroyuki Uhara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing pyromellitic anhydride
- Patent number 6,699,999
- Issue date Mar 2, 2004
- Nippon Shokubai Co., Ltd.
- Tsukasa Takahashi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for production of methacrylic acid
- Patent number 5,264,627
- Issue date Nov 23, 1993
- Nippon Shokubai Co., Ltd.
- Hiroyuki Tazaki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for production of methacrylic acid
- Patent number 4,954,650
- Issue date Sep 4, 1990
- Sumitomo Chemical Company, Ltd.
- Tadashi Abe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalytic vapor phase oxidation reactor apparatus
- Patent number 4,256,783
- Issue date Mar 17, 1981
- Nippon Skokubei Kagaku Kogyo Co., Ltd.
- Masahiro Takada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for catalytic vapor phase oxidation
- Patent number 4,203,906
- Issue date May 20, 1980
- Nippon Shokubai Kagaku Kogyo Co., Ltd.
- Masahiro Takada
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Method for production of methacrylic acid
- Publication number 20030162997
- Publication date Aug 28, 2003
- Hiroyuki Uhara
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for producing pyromellitic anhydride
- Publication number 20030032816
- Publication date Feb 13, 2003
- NIPPON SHOKUBAI CO., LTD.
- Tsukasa Takahashi
- C07 - ORGANIC CHEMISTRY