Yoshiaki Ohtani

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Nakama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polycarbonate resin composition for optical use
- Patent number 5,350,790
- Issue date Sep 27, 1994
- Mitsubishi Kasei Corporation
- Yoshitomi Urabe
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polycarbonate resin composition for optical use
- Patent number 5,254,614
- Issue date Oct 19, 1993
- Mitsubishi Kasei Corporation
- Yoshitomi Urabe
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Preparation with controlled amounts of polycarbonate carbon tetrach...
- Patent number 4,839,458
- Issue date Jun 13, 1989
- Mitsubishi Chemical Industries Ltd.
- Shinichiro Koga
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing 2-(1-hydroxyalkyl) cyclohexanone and/or 2-alk...
- Patent number 4,668,827
- Issue date May 26, 1987
- Mitsubishi Chemical Industries Ltd.
- Mitsuhiko Tamura
- C07 - ORGANIC CHEMISTRY