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Yutaka Konai
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Machida, JP
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last 30 patents
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Patent Grant
Trehalose phosphorylase and preparation thereof
Patent number
5,643,775
Issue date
Jul 1, 1997
Kureha Chemical Industry Co., Ltd.
Eisaku Takahashi
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Process for producing trehalose
Patent number
5,565,341
Issue date
Oct 15, 1996
Kureha Chemical Industry Co., Ltd.
Eisaku Takahashi
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Process for preparing aromatic polycarboxylic acids
Patent number
5,087,742
Issue date
Feb 11, 1992
Kureha Kagaku Kogyo K.K.
Kazuo Yoshida
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation process of 4,4-dihydroxybiphenyl
Patent number
RE33779
Issue date
Dec 24, 1991
Kureha Kagaku Kogyo K.K.
Yutaka Konai
568 - Organic compounds
Information
Patent Grant
Preparation process of biphenyl-4,4'-dicarboxylic acid
Patent number
4,970,338
Issue date
Nov 13, 1990
Kureha Kagaku Kogyo K.K.
Toshiharu Matsuda
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of halobenzophenone derivatives
Patent number
4,960,945
Issue date
Oct 2, 1990
Kureha Kagaku Kogyo K.K.
Takashi Terauchi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing 2,6-naphthalenedicarboxylic acid
Patent number
4,873,366
Issue date
Oct 10, 1989
Kureha Kagaku Kogyo Kabushiki Kaisha
Toshiharu Matsuda
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Oxidation process of aromatic compounds
Patent number
4,825,007
Issue date
Apr 25, 1989
Kureha Kagaku Kogyo K.K.
Yutaka Konai
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing 2,6-dihydroxynaphthalene and 2,6-diacetoxynap...
Patent number
4,814,521
Issue date
Mar 21, 1989
Kureha Kagaku Kogyo Kabushiki Kaisha
Takayuki Tanonaka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation process of 4,4-dihydroxybiphenyl
Patent number
4,804,788
Issue date
Feb 14, 1989
Kureha Kagaku Kogyo K.K.
Yutaka Konai
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing 2,6-naphthalenedicarboxylic acid by oxidizing...
Patent number
4,794,195
Issue date
Dec 27, 1988
Kureha Kagaku Kogyo Kabushiki Kaisha
Shoichiro Hayashi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Derivatives of phenylacetic ester, a process for producing the same...
Patent number
4,668,815
Issue date
May 26, 1987
Kureha Kagaku Kogyo Kabushiki Kaisha
Hiroyuki Enari
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
6-substituted naphthalene-2-carboxylic acids and process for produc...
Patent number
4,638,087
Issue date
Jan 20, 1987
Kureha Kagaku Kogyo Kabushiki Kaisha
Akira Iizuka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing i-brassicasterol
Patent number
4,614,620
Issue date
Sep 30, 1986
Kureha Kagaku Kogyo Kabushiki Kaisha
Yutaka Konai
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Methyl 2-(2-hydroperoxy-2-propyl)naphthalene-6-carboxylate and proc...
Patent number
4,607,117
Issue date
Aug 19, 1986
Kureha Kagaku Kogyo Kabushiki Kaisha
Akira Iizuka
C07 - ORGANIC CHEMISTRY