Masaru Yoneyama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Catalytic method for manufacturing aromatic polyester resin from ar...
- Patent number 4,948,864
- Issue date Aug 14, 1990
- Tosoh Corporation
- Yoshio Imai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for manufacturing polyamide resin from unsaturated bis-amide...
- Patent number 4,937,313
- Issue date Jun 26, 1990
- Tosoh Corporation
- Yoshio Imai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...