Kengi Nakaya

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Kurashiki-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing refined pyromellitic acid and refined pyromel...
- Patent number 6,579,990
- Issue date Jun 17, 2003
- Mitsubishi Gas Chemical Company, Inc.
- Kazuo Tanaka
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing .epsilon.-caprolactone
- Patent number 6,063,938
- Issue date May 16, 2000
- Mitsubishi Gas Chemical Company, Inc.
- Kazuo Tanaka
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Processes for the production of high-purity dimethyl 2, 6-naphthale...
- Patent number 6,013,831
- Issue date Jan 11, 2000
- Mitsubishi Gas Chemical Company, Inc.
- Hiroshi Machida
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Process for producing refined pyromellitic acid and refined pyromel...
- Publication number 20020049339
- Publication date Apr 25, 2002
- Mitsubishi Gas Chemical Company, Inc.
- Kazuo Tanaka
- C07 - ORGANIC CHEMISTRY