Ryoji Hirayama

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Sakai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Surface improving method of polypropylene products for plating, joi...
- Patent number 5,837,323
- Issue date Nov 17, 1998
- Hashimoto Chemical Co., Ltd.
- Tugio Hashimoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...