Tsutomu Wanatabe

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Shiga-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Durable polyurethane fiber and method for the manufacture thereof
- Patent number 5,962,130
- Issue date Oct 5, 1999
- DuPont-Toray Co., Ltd.
- Masao Umezawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...