Yasumasa Sawachika

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Ashikaga, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polyurethane foam for cushioning materials
- Patent number 5,128,381
- Issue date Jul 7, 1992
- Achilles Corporation
- Kouichi Tane
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...