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Tooru Kitagawa
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Ohtsu, 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
Porous polymer flat-sheet membrane
Patent number
9,550,153
Issue date
Jan 24, 2017
Toyobo Co., Ltd.
Junsuke Morita
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Polyimide nonwoven fabric and process for production thereof
Patent number
9,394,638
Issue date
Jul 19, 2016
Toyo Boseki Kabushiki Kaisha
Masahiko Nakamori
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information
Patent Grant
Reverse osmosis membrane for wastewater treatment
Patent number
9,211,509
Issue date
Dec 15, 2015
Toyobo Co., Ltd.
Masao Higashi
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
Process for producing polyester, polyester produced using said proc...
Patent number
7,868,126
Issue date
Jan 11, 2011
Toyo Boseki Kabushiki Kaisha
Katsuhiko Kageyama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
High strength polyethylene fiber
Patent number
7,811,673
Issue date
Oct 12, 2010
Toyo Boseki Kabushiki Kaisha
Godo Sakamoto
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Composite ion-exchange membrane
Patent number
7,649,025
Issue date
Jan 19, 2010
Toyo Boseki Kabushiki Kaisha
Kota Kitamura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
High strength polyethylene fiber
Patent number
7,141,301
Issue date
Nov 28, 2006
Toyo Boseki Kabushiki Kaisha
Godo Sakamoto
D07 - ROPES CABLES OTHER THAN ELECTRIC
Information
Patent Grant
High strength polyethylene fiber
Patent number
6,899,950
Issue date
May 31, 2005
Toyo Boseki Kabushiki Kaisha
Godo Sakamoto
D07 - ROPES CABLES OTHER THAN ELECTRIC
Information
Patent Grant
Polybenzazole fiber
Patent number
6,884,506
Issue date
Apr 26, 2005
Toyo Boseki Kabushiki Kaisha
Tooru Kitagawa
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Polybenzazole fibers and their utilization
Patent number
6,673,445
Issue date
Jan 6, 2004
Toyo Boseki Kabushiki Kaisha
Tooru Kitagawa
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Polybenzazole fiber having high tensile modulus and process of manu...
Patent number
6,040,050
Issue date
Mar 21, 2000
Toyo Boseki Kabushiki Kaisha
Tooru Kitagawa
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Polybenzazole fiber and method for production thereof
Patent number
5,993,963
Issue date
Nov 30, 1999
Toyo Boseki Kabushiki Kaisha
Yoshihiko Teramoto
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Processes for producing polybenzazole fibers
Patent number
5,772,942
Issue date
Jun 30, 1998
Toyo Boseki Kabushiki Kaisha
Yoshihiko Teramoto
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Method for rapid drying of a polybenzazole fiber
Patent number
5,429,787
Issue date
Jul 4, 1995
The Dow Chemical Company
Jang-hi Im
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Process for producing polyester fibers
Patent number
5,171,506
Issue date
Dec 15, 1992
Toyo Boseki Kabushiki Kaisha
Mitsuhiro Sakuda
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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
POROUS POLYMER FLAT-SHEET MEMBRANE
Publication number
20150328591
Publication date
Nov 19, 2015
TOYOBO CO., LTD.
Junsuke Morita
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
REVERSE OSMOSIS MEMBRANE FOR WASTEWATER TREATMENT
Publication number
20150136692
Publication date
May 21, 2015
TOYOBO CO., LTD.
Masao Higashi
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
POLYIMIDE NONWOVEN FABRIC AND PROCESS FOR PRODUCTION THEREOF
Publication number
20100178830
Publication date
Jul 15, 2010
Toyo Boseki Kabushiki Kaisha
Masahiko Nakamori
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Application
Process for Producing Polyester, Polyester Produced Using Said Proc...
Publication number
20080249280
Publication date
Oct 9, 2008
TOYO BOSEKI KABUSHIKI KAISHA
Katsuhiko Kageyama
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Application
High strength polyethylene fiber
Publication number
20070148452
Publication date
Jun 28, 2007
Godo Sakamoto
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Application
Composite ion-exchange membrane
Publication number
20060241192
Publication date
Oct 26, 2006
Kota Kitamura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
High strength polyethylene fiber
Publication number
20050238875
Publication date
Oct 27, 2005
Toyo Boseki Kabushiki Kaisha
Godo Sakamoto
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Application
Polybenzazole fiber
Publication number
20050045545
Publication date
Mar 3, 2005
Tooru Kitagawa
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Application
High strength polyethylene fiber
Publication number
20040062926
Publication date
Apr 1, 2004
Godo Sakamoto
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Application
Polybenzazol fiber and use of the same
Publication number
20030152769
Publication date
Aug 14, 2003
Tooru Kitagawa
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING