Seisaku Kumai

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Yokohama, JA

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing perfluorolactone
- Patent number 4,089,869
- Issue date May 16, 1978
- Asahi Glass Company Ltd.
- Masaaki Yamabe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing methacrylic acid
- Patent number 3,998,877
- Issue date Dec 21, 1976
- Asahi Glass Co., Ltd.
- Yoshio Oda
- C07 - ORGANIC CHEMISTRY