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Yoshimitsu Sakaguchi
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Ootsu, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Proton conducting polymer membrane, method for production thereof a...
Patent number
8,557,472
Issue date
Oct 15, 2013
Toyo Boseki Kabushiki Kaisha
Fusaki Fujibayashi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Sulfonic acid group-containing polymer, method for producing the sa...
Patent number
8,445,141
Issue date
May 21, 2013
Toyo Boseki Kabushiki Kaisha
Kota Kitamura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for producing a polymer electrolyte membrane
Patent number
8,304,133
Issue date
Nov 6, 2012
Toyo Boseki Kabushiki Kaisha
Kousuke Sasai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Aromatic hydrocarbon based proton exchange membrane and direct meth...
Patent number
8,216,727
Issue date
Jul 10, 2012
Toyo Boseki Kabushiki Kaisha
Masahiro Yamashita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Proton-conducting polymer composition and method for preparation th...
Patent number
8,187,734
Issue date
May 29, 2012
Toyo Boseki Kabushiki Kaisha
Masahiro Yamashita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyarylene ether compound containing sulfonic acid group, composit...
Patent number
7,754,844
Issue date
Jul 13, 2010
Toyo Boseki Kabushiki Kaisha
Yoshimitsu Sakaguchi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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
Composite ion exchange membrane and electrolyte membrane electrode...
Patent number
7,537,852
Issue date
May 26, 2009
Toyo Boseki Kabushiki Kaisha
Shiro Hamamoto
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polybenzazole compound having sulfonic acid group and/or phosphonic...
Patent number
7,288,603
Issue date
Oct 30, 2007
Toyo Boseki Kabushiki Kaisha
Yoshimitsu Sakaguchi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Oxygen-absorbing material
Patent number
6,689,437
Issue date
Feb 10, 2004
Toyo Boseki Kabushiki Kaisha
Hisashi Ubara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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
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
AROMATIC HYDROCARBON BASED PROTON EXCHANGE MEMBRANE AND DIRECT METH...
Publication number
20120052411
Publication date
Mar 1, 2012
Masahiro Yamashita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Novel Sulfonic-Acid-Group-Containing Segmented Block Copolymer, App...
Publication number
20110065021
Publication date
Mar 17, 2011
Toyo Boseki Kabushiki Kaisha
Kouta Kitamura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD FOR PRODUCING A POLYMER ELECTROLYTE MEMBRANE
Publication number
20100055536
Publication date
Mar 4, 2010
TOYO BOSEKI KABUSHIKI KAISHA
Kousuke Sasai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROTON-CONDUCTING POLYMER COMPOSITION AND METHOD FOR PREPARATION TH...
Publication number
20090269643
Publication date
Oct 29, 2009
Masahiro Yamashita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Proton Conducting Polymer membrane, Method for Production Thereof a...
Publication number
20090136818
Publication date
May 28, 2009
Fusaki Fujibayashi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Sulfonic acid group-containing polymer, method for producing the sa...
Publication number
20090075147
Publication date
Mar 19, 2009
Kota Kitamura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Electrolyte Membrane-Electrode Assembly, Fuel Cell Using The Same,...
Publication number
20080063917
Publication date
Mar 13, 2008
Masahiro Yamashita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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
Polyarylene ether compound containing sulfonic acid group, composit...
Publication number
20060166048
Publication date
Jul 27, 2006
Yoshimitsu Sakaguchi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Heat-resistant film and composite ion-exchange membrane
Publication number
20060138042
Publication date
Jun 29, 2006
Kazutake Okamoto
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Cluster ion exchange membrane and electrolyte membrane electrode co...
Publication number
20050095486
Publication date
May 5, 2005
Shiro Hamamoto
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polybenzazole compound having sulfo group and/or phosphono group, r...
Publication number
20040062969
Publication date
Apr 1, 2004
Yoshimitsu Sakaguchi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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