Tsutomu Takahashi

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Ibaraki-Ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing para-aromatic polyamide paper
- Patent number 6,942,757
- Issue date Sep 13, 2005
- Teijin Twaron B.V.
- Masanobu Iwama
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE