Hiroaki Ohgi

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Tsukuba-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing polycarbonate resin
- Patent number 6,777,528
- Issue date Aug 17, 2004
- Mitsubishi Gas Chemical Company, Inc.
- Takayasu Fujimori
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for separation between dialkyl carbonate and alkyl carbamate
- Patent number 6,169,197
- Issue date Jan 2, 2001
- Mitsubishi Gas Chemical Company, Inc.
- Takuo Ohshida
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing dialkyl carbonate
- Patent number 6,031,122
- Issue date Feb 29, 2000
- Mitsubishi Gas Chemical Company, Inc.
- Masamichi Mizukami
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing diaryl carbonate
- Patent number 5,980,445
- Issue date Nov 9, 1999
- Mitsubishi Gas Chemical Company, Inc.
- Masamichi Mizukami
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing aromatic carbonate
- Patent number 5,714,627
- Issue date Feb 3, 1998
- Mitsubishi Gas Chemical Company, Inc.
- Masamichi Mizukami
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Process for producing polycarbonate resin
- Publication number 20020132968
- Publication date Sep 19, 2002
- MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Takayasu Fujimori
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...