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Yasuhiko Higashio
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Ichihara, JP
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last 30 patents
Information
Patent Grant
Process for producing a high purity caprolactam
Patent number
5,525,725
Issue date
Jun 11, 1996
Sumitomo Chemical Company, Limited
Yasuhiko Higashio
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing a high purity caprolactam
Patent number
5,459,261
Issue date
Oct 17, 1995
Sumitomo Chemical Company, Limited
Yasuhiko Higashio
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing a high purity caprolactam
Patent number
5,362,870
Issue date
Nov 8, 1994
Sumitomo Chemical Company, Ltd.
Yasuhiko Higashio
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for inhibiting thermal decomposition of cycloalkanone oximes
Patent number
5,315,039
Issue date
May 24, 1994
Sumitomo Chemical Company, Limited
Hiroshi Kajikuri
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing epsilon-caprolactam
Patent number
5,304,643
Issue date
Apr 19, 1994
Sumitomo Chemical Company, Limited
Hiroshi Kajikuri
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for production of sec-butylbenzene
Patent number
5,191,136
Issue date
Mar 2, 1993
Sumitomo Chemical Co., Ltd.
Kazuteru Takahashi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for production of sec-butylbenzene
Patent number
5,059,736
Issue date
Oct 22, 1991
Sumitomo Chemical Co., Ltd.
Mitsuhisa Tamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Production of hydrocarbon-soluble salts of molybdenum for epoxidati...
Patent number
5,017,712
Issue date
May 21, 1991
ARCO Chemical Technology, Inc.
Masahiro Usui
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Production of 2,5-dimethyl-2,4-hexadiene
Patent number
4,684,758
Issue date
Aug 4, 1987
Sumitomo Chemical Company, Ltd.
Yasuhiko Higashio
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Production of hydrocarbon-soluble salts of molybdenum for epoxidati...
Patent number
4,593,012
Issue date
Jun 3, 1986
Atlantic Richfield Company
Masahiro Usui
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Selective hydrogenation method for hydrocarbons
Patent number
4,469,907
Issue date
Sep 4, 1984
Sumitomo Chemical Company, Limited
Masashi Araki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of purification of .beta.-phenylethyl alcohol
Patent number
4,359,365
Issue date
Nov 16, 1982
Sumitomo Chemical Company, Limited
Takashi Deguchi
C07 - ORGANIC CHEMISTRY