Hiroshi Usui

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Kanuma, JP

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Patents Grantslast 30 patents

Information Patent Grant
Production process of expansion-molded article
- Patent number 5,085,814
- Issue date Feb 4, 1992
- JSP Corporation
- Makoto Kamiyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL