Takao Usami

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Ibaraki-Ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Propylene block copolymer and propylene resin composition
- Patent number 6,825,280
- Issue date Nov 30, 2004
- Japan Polychem Corporation
- Yu Hayakawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...