Akihiro Okubo

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Itano-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Laminated material of segregating membrane and segregating membrane...
- Patent number 7,071,130
- Issue date Jul 4, 2006
- Awa Paper Mfg. Co., Ltd.
- Yoshitsugu Hama
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Semipermeable membrane support and process of preparation thereof
- Patent number 6,919,026
- Issue date Jul 19, 2005
- Awa Paper Mfg. Co., Ltd.
- Yoshitsugu Hama
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
Laminated material of segregating membrane and segregating membrane...
- Publication number 20050176330
- Publication date Aug 11, 2005
- Yoshitsugu Hama
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information Patent Application
Semipermeable membrane support and process of preparation thereof
- Publication number 20020056535
- Publication date May 16, 2002
- Yoshitsugu Hama
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL