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Tamio Shirafuji
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Niihama, JP
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last 30 patents
Information
Patent Grant
Process for producing coumarin and derivatives thereof
Patent number
5,300,662
Issue date
Apr 5, 1994
Sumitomo Chemical Company, Limited
Yoshitaka Nishida
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing coumarin and derivative thereof
Patent number
5,260,457
Issue date
Nov 9, 1993
Sumitomo Chemical Co., Ltd.
Yoshitaka Nishida
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing 3,4-dihydrocoumarin derivatives
Patent number
5,237,075
Issue date
Aug 17, 1993
Sumitomo Chemical Co., Ltd.
Tamio Shirafuji
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing coumarin derivatives
Patent number
5,231,194
Issue date
Jul 27, 1993
Sumitomo Chemical Co., Ltd.
Tamio Shirafuji
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing 3,4-dihydrocoumarin
Patent number
5,218,129
Issue date
Jun 8, 1993
Sumitomo Chemical Co., Ltd.
Tamio Shirafuji
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for producing cycloalkanol
Patent number
4,879,422
Issue date
Nov 7, 1989
Sumitomo Chemical Company, Limited
Tamio Shirafuji
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for producing cycloalkanols
Patent number
4,849,550
Issue date
Jul 18, 1989
Sumitomo Chemical Company, Limited
Tamio Shirafuji
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for separating cyclohexanol
Patent number
4,849,551
Issue date
Jul 18, 1989
Sumitomo Chemical Company, Limited
Tamio Shirafuji
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for producing cycloalkanols
Patent number
4,716,253
Issue date
Dec 29, 1987
Sumitomo Chemical Company, Limited
Tamio Shirafuji
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for producing cycloalkanols
Patent number
4,691,064
Issue date
Sep 1, 1987
Sumitomo Chemical Company, Limited
Tamio Shirafuji
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for producing alicyclic alcohols
Patent number
4,670,612
Issue date
Jun 2, 1987
Sumitomo Chemical Company, Limited
Tamio Shirafuji
C07 - ORGANIC CHEMISTRY