Kazuyuki Sakamoto

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ethylene/α-olefin copolymer
- Patent number 6,492,475
- Issue date Dec 10, 2002
- Japan Polyolefins Co., Ltd.
- Toshiaki Egashira
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Spectacle frame
- Patent number 4,747,680
- Issue date May 31, 1988
- Nippon Kogaku K.K.
- Tatsuro Hatano
- G02 - OPTICS