Tetsuya Ishitani

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Hokkaido, JP

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Patents Grantslast 30 patents

Information Patent Grant
Wet type paper friction material with combined improved friction ch...
- Patent number 6,121,168
- Issue date Sep 19, 2000
- Dynax Corporation
- Maki Irifune
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE