Hiroyuki Yamamoto

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Nagaoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Filter material for air filter, method for manufacturing same, and...
- Patent number 9,656,196
- Issue date May 23, 2017
- HOKUETSU KISHU PAPER CO., LTD.
- Masashi Sato
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
FILTER MATERIAL FOR AIR FILTER, METHOD FOR MANUFACTURING SAME, AND...
- Publication number 20160051920
- Publication date Feb 25, 2016
- HOKUETSU KISHU PAPER CO., LTD.
- Masashi SATO
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL