Kenji Usui

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Nihonbashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing allyl chloride
- Patent number 6,414,204
- Issue date Jul 2, 2002
- Showa Denko K.K.
- Kenji Usui
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for separation of naphthoquinone and phthalic acid
- Patent number 5,153,339
- Issue date Oct 6, 1992
- Kawasaki Kasei Chemicals Ltd.
- Ryo Matsuura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for molding 1,4,4a,9a-tetrahydroanthraquinone
- Patent number 4,795,604
- Issue date Jan 3, 1989
- Kawasaki Kasei Chemicals Ltd.
- Katsumi Matsuzaki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing 1,4,4a,9a-tetrahydroanthraquinone compound
- Patent number 4,412,954
- Issue date Nov 1, 1983
- Kawasaki Kasei Chemicals Ltd.
- Tatsuyoshi Komatsu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing hydroanthraquinones
- Patent number 4,369,140
- Issue date Jan 18, 1983
- Kawasaki Kasei Chemicals Ltd.
- Tatsuyoshi Komatsu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for separation of naphthoquinone and phthalic acid
- Patent number 4,202,828
- Issue date May 13, 1980
- Kawasaki Kasei Chemicals Limited
- Ryo Matsuura
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Process for producing allyl chloride
- Publication number 20020045784
- Publication date Apr 18, 2002
- Kenji Usui
- C07 - ORGANIC CHEMISTRY