Toshikazu Tomura

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Patents Grantslast 30 patents

Information Patent Grant
Filter material containing a polycyanoaryl ether
- Patent number 6,074,449
- Issue date Jun 13, 2000
- Idemitsu Petrochemical Co., Ltd.
- Toshikazu Tomura
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL