Shoichi Shimoyama

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing oil-modified and rosin-modified phenolic resi...
- Patent number 4,391,640
- Issue date Jul 5, 1983
- Dainippon Ink and Chemicals, Inc.
- Noboru Okoshi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...