Sakaguchi; Yoshimitsu

Patent Applications and Registrations

Patent applications and USPTO patent grants for Sakaguchi; Yoshimitsu.The latest application filed is for "aromatic hydrocarbon based proton exchange membrane and direct methanol fuel cell using same".

Company Profile

0.13.13

Sakaguchi; Yoshimitsu - Otsu N/A JP
Sakaguchi; Yoshimitsu - Ohtsu JP
SAKAGUCHI; Yoshimitsu - Otsu-shi JP
Sakaguchi; Yoshimitsu - Shiga JP
Sakaguchi; Yoshimitsu - Ohtsu-shi JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Proton conducting polymer membrane, method for production thereof and fuel cell therewith Grant 8,557,472 - Fujibayashi , et al. October 15, 2	2013-10-15
Sulfonic acid group-containing polymer, method for producing the same, resin composition containing such sulfonic acid group-containing polymer, polymer electrolyte membrane, polymer electrolyte membrane/electrode assembly, and fuel cell Grant 8,445,141 - Kitamura , et al. May 21, 2	2013-05-21
Method for producing a polymer electrolyte membrane Grant 8,304,133 - Sasai , et al. November 6, 2	2012-11-06
Aromatic hydrocarbon based proton exchange membrane and direct methanol fuel cell using same Grant 8,216,727 - Yamashita , et al. July 10, 2	2012-07-10
Proton-conducting polymer composition and method for preparation thereof, catalyst ink containing said proton-conducting polymer composition and fuel cell including said catalyst ink Grant 8,187,734 - Yamashita , et al. May 29, 2	2012-05-29
Aromatic Hydrocarbon Based Proton Exchange Membrane And Direct Methanol Fuel Cell Using Same App 20120052411 - YAMASHITA; Masahiro ; et al.	2012-03-01
Novel Sulfonic-Acid-Group-Containing Segmented Block Copolymer, Application Thereof, and Method of Manufacturing Novel Block Copolymer App 20110065021 - Kitamura; Kouta ; et al.	2011-03-17
Polyarylene ether compound containing sulfonic acid group, composition containing same, and method for manufacturing those Grant 7,754,844 - Sakaguchi , et al. July 13, 2	2010-07-13
Method For Producing A Polymer Electrolyte Membrane App 20100055536 - Sasai; Kousuke ; et al.	2010-03-04
Composite ion-exchange membrane Grant 7,649,025 - Kitamura , et al. January 19, 2	2010-01-19
Proton-conducting Polymer Composition And Method For Preparation Thereof, Catalyst Ink Containing Said Proton-conducting Polymer Composition And Fuel Cell Including Said Catalyst Ink App 20090269643 - Yamashita; Masahiro ; et al.	2009-10-29
Proton Conducting Polymer membrane, Method for Production Thereof and Fuel Cell Therewith App 20090136818 - Fujibayashi; Fusaki ; et al.	2009-05-28
Composite ion exchange membrane and electrolyte membrane electrode assembly Grant 7,537,852 - Hamamoto , et al. May 26, 2	2009-05-26
Sulfonic acid group-containing polymer, method for producing the same, resin composition containing such sulfonic acid group-containing polymer, polymer electrolyte membrane, polymer electrolyte membrane/electrode assembly, and fuel cell App 20090075147 - Kitamura; Kota ; et al.	2009-03-19
Electrolyte Membrane-Electrode Assembly, Fuel Cell Using The Same, And Method For Producing Electrolyte Membrane-Electrode Assembly App 20080063917 - Yamashita; Masahiro ; et al.	2008-03-13
Polybenzazole compound having sulfonic acid group and/or phosphonic acid group, resin composition containing the same, resin molding, solid polymer electrolyte membrane, solid polymer electrolyte membrane/electrode assembly and method of preparing assembly Grant 7,288,603 - Sakaguchi , et al. October 30, 2	2007-10-30
Composite ion-exchange membrane App 20060241192 - Kitamura; Kota ; et al.	2006-10-26
Polyarylene ether compound containing sulfonic acid group, composition containing same, and method for manufacturing those App 20060166048 - Sakaguchi; Yoshimitsu ; et al.	2006-07-27
Heat-resistant film and composite ion-exchange membrane App 20060138042 - Okamoto; Kazutake ; et al.	2006-06-29
Cluster ion exchange membrane and electrolyte membrane electrode connection body App 20050095486 - Hamamoto, Shiro ; et al.	2005-05-05
Polybenzazole compound having sulfo group and/or phosphono group, resin composition containing the same, molded resin, slid polymer electrolyte film, solid electrolyte film/electrode catalyst layer composite, and process for producing the composite App 20040062969 - Sakaguchi, Yoshimitsu ; et al.	2004-04-01
Oxygen-absorbing material Grant 6,689,437 - Ubara , et al. February 10, 2	2004-02-10
Polybenzazole fibers and their utilization Grant 6,673,445 - Kitagawa , et al. January 6, 2	2004-01-06
Polybenzazol fiber and use of the same App 20030152769 - Kitagawa, Tooru ; et al.	2003-08-14

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