Kenji Oka

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Hiroshima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing cyclic olefin compound
- Patent number 8,115,043
- Issue date Feb 14, 2012
- Daicel Chemical Industries, Ltd.
- Hideyuki Takai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of producing sesamol formic acid ester and sesamol
- Patent number 6,384,247
- Issue date May 7, 2002
- Daicel Chemical Industries, Ltd.
- Hiroto Tanigawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparation of isocyanate compounds
- Patent number 5,914,428
- Issue date Jun 22, 1999
- Daicel Chemical Industries, Ltd.
- Toyokazu Yagii
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparation of aliphatic diisocyanate compounds
- Patent number 5,789,614
- Issue date Aug 4, 1998
- Daicel Chemical Industries, Ltd.
- Toyokazu Yagii
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Method for Producing Cyclic Olefin Compound
- Publication number 20090062580
- Publication date Mar 5, 2009
- Hideyuki Takai
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method of producing sesamol formic acid ester and sesamol
- Publication number 20020016479
- Publication date Feb 7, 2002
- Hiroto Tanigawa
- C07 - ORGANIC CHEMISTRY