Kohei Yasuzawa

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Shimodate, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing phenolic resins
- Patent number 4,229,330
- Issue date Oct 21, 1980
- Hitachi Chemical Company, Ltd.
- Susumu Konii
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for producing internally plasticized phenolic resins
- Patent number 4,209,429
- Issue date Jun 24, 1980
- Hitachi Chemical Company, Ltd.
- Susumu Konii
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE