Hiroyuki Hisakuni

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Kobe, JP

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Patents Grantslast 30 patents

Information Patent Grant
Filler for paper-making and neutral paper-making process by the use...
- Patent number 4,725,318
- Issue date Feb 16, 1988
- Maruo Calcium Company, Limited
- Shiro Minayoshi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE