Tetsuo Watanabe

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Ohtsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Composite membrane
- Patent number 5,259,950
- Issue date Nov 9, 1993
- Toray Industries, Inc.
- Kuniyasu Shiro
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Porous membrane and production process thereof
- Patent number 5,112,487
- Issue date May 12, 1992
- Toray Industries, Inc.
- Yoshio Himeshima
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method of making a reverse osmosis semipermeable membrane
- Patent number 4,557,949
- Issue date Dec 10, 1985
- Toray Industries, Inc.
- Masaru Kurihara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Reverse osmosis using a composite isocyanurate membrane
- Patent number 4,366,062
- Issue date Dec 28, 1982
- Toray Industries, Inc.
- Masaru Kurihara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...