Kozo Ishiyama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polyphenylene ether resin composition having improved heat stability
- Patent number 4,427,814
- Issue date Jan 24, 1984
- Mitsubishi Gas Chemical Company, Inc.
- Akitoshi Sugio
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyphenylene ether resin composition
- Patent number 4,383,066
- Issue date May 10, 1983
- Mitsubishi Gas Chemical Company, Inc.
- Akitoshi Sugio
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyphenylene ether resin composition having improved heat stabilit...
- Patent number 4,341,879
- Issue date Jul 27, 1982
- Mitsubishi Gas Chemical Company, Inc.
- Akitoshi Sugio
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...