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Seiji Watanuki
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Otsu, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Separation membrane, separation membrane element and separation mem...
Patent number
10,814,289
Issue date
Oct 27, 2020
TOYOBO CO., LTD.
Takahito Nakao
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Composite separation membrane
Patent number
10,625,217
Issue date
Apr 21, 2020
Toyobo Co., Ltd.
Takashi Ohkame
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Polybenzazole fiber and pyridobisimidazole fiber
Patent number
8,580,380
Issue date
Nov 12, 2013
Toyo Boseki Kabushiki Kaisha
Tooru Kitagawa
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Method of preparing composite from rigid polymer solution and compo...
Patent number
7,208,109
Issue date
Apr 24, 2007
Toyo Boseki Kabushiki Kaisha
Yoshihiko Teramoto
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Cellulose acetate hemodialysis membrane
Patent number
5,783,124
Issue date
Jul 21, 1998
Toyo Boseki Kabushiki Kaisha
Tohru Uenishi
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Cellulose acetate hemodialysis membrane
Patent number
5,624,561
Issue date
Apr 29, 1997
Toyo Boseki Kabushiki Kaisha
Tohru Uenishi
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
SEPARATION MEMBRANE, SEPARATION MEMBRANE ELEMENT AND SEPARATION MEM...
Publication number
20170296985
Publication date
Oct 19, 2017
TOYOBO CO., LTD.
Takahito Nakao
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
COMPOSITE SEPARATION MEMBRANE
Publication number
20150314245
Publication date
Nov 5, 2015
TOYOBO CO., LTD.
Takahito Nakao
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
COMPOSITE SEPARATION MEMBRANE
Publication number
20150209736
Publication date
Jul 30, 2015
TOYOBO CO., LTD.
Takashi Ohkame
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
POLYBENZAZOLE FIBER AND PYRIDOBISIMIDAZOLE FIBER
Publication number
20100233451
Publication date
Sep 16, 2010
Toyo Boseki Kabushiki Kaisha
Tooru Kitagawa
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Application
Process for producing composite from solution of rigid polymer and...
Publication number
20040056381
Publication date
Mar 25, 2004
Yoshihiko Teramoto
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...