Hiroharu Shirota

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Izumi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Processes for producing polycarbonate polyols
- Patent number 4,891,421
- Issue date Jan 2, 1990
- Dainippon Ink and Chemicals, Inc.
- Katsuhide Nishimura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...