Yoshio Nakajima

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Yokkaichi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing polypropylene foam
- Patent number 4,882,108
- Issue date Nov 21, 1989
- Mitsubishi Petrochemical Co., Ltd.
- Yoshio Nakajima
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL