Tatsuya Kawamura

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Tokuyama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Copolymer and process for producing the same
- Patent number 6,376,630
- Issue date Apr 23, 2002
- Idemitsu Petrochemical Co., Ltd.
- Koichi Nishimura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Copolymer, hydrogenated product thereof, and process for producing...
- Patent number 6,040,388
- Issue date Mar 21, 2000
- Idemitsu Petrochemical Co., Ltd.
- Koichi Nishimura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for recovering boron trifluoride
- Patent number 5,371,052
- Issue date Dec 6, 1994
- Idemitsu Petrochemical Co., Ltd.
- Tatsuya Kawamura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing olefin oligomer
- Patent number 5,191,140
- Issue date Mar 2, 1993
- Idemitsu Petrochemical Co., Ltd.
- Makoto Akatsu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for manufacture of olefin oligomer
- Patent number 4,982,042
- Issue date Jan 1, 1991
- Idemitsu Petrochemical Co., Ltd.
- Makoto Akatsu
- C07 - ORGANIC CHEMISTRY