Osamu Nishimura

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Toyohashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Porous membrane and production process thereof
- Patent number 5,057,218
- Issue date Oct 15, 1991
- Mitsubishi Rayon Co., Ltd.
- Toshinobu Koshoji
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...