Tsunehisa Sonobe

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polyurethane flexible foam and method for its production
- Patent number 5,093,380
- Issue date Mar 3, 1992
- Asahi Glass Company, Ltd.
- Hiromitsu Takeyasu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...