Ujiro; Takumi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ujiro; Takumi.The latest application filed is for "ferritic stainless steel excellent in corrosion resistance and conductivity and method for manufacturing the same, separator of proton-exchange membrane fuel cell and proton-exchange membrane fuel cell".

Company Profile

0.35.34

Ujiro; Takumi - Chiba N/A JP
Ujiro; Takumi - Tokyo N/A JP
Ujiro; Takumi - Chiyoda-ku JP
Ujiro; Takumi - Chiba-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
Ferritic stainless steel excellent in corrosion resistance and conductivity and method for manufacturing the same, separator of proton-exchange membrane fuel cell and proton-exchange membrane fuel cell Grant 9,587,297 - Ishii , et al. March 7, 2	2017-03-07
Heat-resistance ferritic stainless steel Grant 9,279,172 - Kato , et al. March 8, 2	2016-03-08
Stainless steel foil and catalyst carrier for exhaust gas purifying device using the foil Grant 9,273,382 - Mizutani , et al. March 1, 2	2016-03-01
Ferritic stainless steel excellent in oxidation resistance Grant 9,157,137 - Nakamura , et al. October 13, 2	2015-10-13
Stainless steel for fuel cell having good corrosion resistance and method for producing the same Grant 9,130,199 - Ide , et al. September 8, 2	2015-09-08
Stainless steel sheet with excellent heat and corrosion resistances for brake disk Grant 8,852,361 - Hirasawa , et al. October 7, 2	2014-10-07
Brake disk excellent in temper softening resistance and toughness Grant 8,657,971 - Hirasawa , et al. February 25, 2	2014-02-25
Steel sheet for brake disc, and brake disc Grant 8,607,941 - Yamauchi , et al. December 17, 2	2013-12-17
Ferritic Stainless Steel Excellent In Corrosion Resistance And Conductivity And Method For Manufacturing The Same, Separator Of Proton-exchange Membrane Fuel Cell And Proton-exchange Membrane Fuel Cell App 20130316262 - Ishii; Tomohiro ; et al.	2013-11-28
Ferritic Stainless Steel Excellent In Oxidation Resistance App 20130272912 - Nakamura; Tetsuyuki ; et al.	2013-10-17
Stainless Steel Foil And Catalyst Carrier For Exhaust Gas Purifying Device Using The Foil App 20130196172 - Mizutani; Akito ; et al.	2013-08-01
Metal Sheet For Separator Of Proton-exchange Membrane Fuel Cell App 20130177837 - Nishiyama; Naoki ; et al.	2013-07-11
Stainless steel having good conductivity and ductility for use in fuel cell and method for producing the same Grant 8,440,029 - Ide , et al. May 14, 2	2013-05-14
Stainless Steel For Conductive Members With Low Contact Electric Resistance And Method For Producing The Same App 20130108945 - Ishii; Tomohiro ; et al.	2013-05-02
Ferritic stainless steel sheet for water heater excellent in corrosion resistance at welded part and steel sheet toughness Grant 8,383,034 - Fukuda , et al. February 26, 2	2013-02-26
Martensitic stainless steel for disk brakes Grant 8,357,247 - Hirasawa , et al. January 22, 2	2013-01-22
Low-carbon martensitic chromium-containing steel Grant 8,333,849 - Yamauchi , et al. December 18, 2	2012-12-18
Stainless Steel For Fuel Cell Having Good Corrosion Resistance And Method For Producing The Same App 20120276472 - Ide; Shinsuke ; et al.	2012-11-01
Steel Sheet For Brake Disc, And Brake Disc App 20120125724 - Yamauchi; Katsuhisa ; et al.	2012-05-24
Stainless Steel Having Good Conductivity And Ductility For Use In Fuel Cell And Method For Producing The Same App 20120118442 - Ide; Shinsuke ; et al.	2012-05-17
Ferritic stainless steel sheet having superior sulfuric acid corrosion resistance and method for manufacturing the same Grant 8,152,937 - Ishii , et al. April 10, 2	2012-04-10
Ferritic stainless steel with excellent heat resistance Grant 8,153,055 - Nakamura , et al. April 10, 2	2012-04-10
Martensitic stainless steel for disc brakes App 20120048662 - Hirasawa; Junichiro ; et al.	2012-03-01
Ferritic Stainless Steel With Excellent Heat Resistance App 20120020827 - Nakamura; Tetsuyuki ; et al.	2012-01-26
Ferritic Stainless Steel Excellent In Heat Resistance And Toughness App 20110123387 - Kato; Yasushi ; et al.	2011-05-26
Low-carbon Martensitic Chromium-containing Steel App 20110030851 - Yamauchi; Katsuhisa ; et al.	2011-02-10
Heat-resistance Ferritic Stainless Steel App 20110008200 - Kato; Yasushi ; et al.	2011-01-13
Ferritic stainless steel sheet for raw material pipe for bellows pipe Grant 7,819,991 - Kato , et al. October 26, 2	2010-10-26
Ferritic Stainless Steel Sheet Having Superior Sulfuric Acid Corrosion Resistance And Method For Manufacturing The Same App 20100139818 - Ishii; Tomohiro ; et al.	2010-06-10
Ferritic Stainless Steel Sheet For Water Heater Excellent In Corrosion Resistance At Welded Part And Steel Sheet Toughness App 20100061878 - Fukuda; Kunio ; et al.	2010-03-11
Ferritic stainless steel plate Grant RE40,950 - Ota , et al. November 10, 2	2009-11-10
Martensitic stainless steel sheet and method for making the same Grant 7,572,407 - Hirasawa , et al. August 11, 2	2009-08-11
Brake Disk Having High Temper Softening Resistance App 20090162240 - Hirasawa; Junichiro ; et al.	2009-06-25
Brake Disk Excellent in Temper Softening Resistance and Toughness App 20090104068 - Hirasawa; Junichiro ; et al.	2009-04-23
Ferritic Stainless Steel Sheet for Raw Material Pipe for Bellows Pipe App 20090004040 - Kato; Yasushi ; et al.	2009-01-01
Stainless steel sheet for welded structural components and method for making the same Grant 7,429,302 - Hirasawa , et al. September 30, 2	2008-09-30
High-strength stainless steel material in the form of a wheel rim and method for manufacturing the same Grant 7,294,212 - Hirasawa , et al. November 13, 2	2007-11-13
Martensitic stainless steel for disk brakes App 20060113008 - Hirasawa; Junichiro ; et al.	2006-06-01
Cr steel for structural use and method for producing the same App 20050241737 - Ujiro, Takumi ; et al.	2005-11-03
High-strength stainless steel sheet and method for manufacturing the same App 20040226634 - Hirasawa, Junichiro ; et al.	2004-11-18
Corrosion-resistant chromium steel for architectural and civil engineering structural elements Grant 6,737,018 - Ota , et al. May 18, 2	2004-05-18
Structural Fe-Cr steel sheet, manufacturing method thereof, and structural shaped steel App 20040003876 - Ota, Hiroki ; et al.	2004-01-08
Method of manufacturing a ferritic stainless steel plate Grant 6,645,324 - Hirata , et al. November 11, 2	2003-11-11
Stainless steel sheet for welded structural components and method for making the same App 20030188813 - Hirasawa, Junichiro ; et al.	2003-10-09
Martensitic stainless steel sheet and method for making the same App 20030138342 - Hirasawa, Junichiro ; et al.	2003-07-24
Corrosion-resistant chromium steel for architectural and civil engineering structural elements App 20020155019 - Ota, Hiroki ; et al.	2002-10-24
Ferritic stainless steel plate and method App 20020144756 - Hirata, Norimasa ; et al.	2002-10-10
Ferritic Cr-containing steel sheet having excellent ductility, formability, and anti-ridging properties App 20020074067 - Ota, Hiroki ; et al.	2002-06-20
Ferritic stainless steel plate Grant 6,383,309 - Hirata , et al. May 7, 2	2002-05-07
Fe-Cr alloy having excellent initial rust resistance, workability and weldability App 20020009381 - Yazawa, Yoshihiro ; et al.	2002-01-24
Ferritic stainless steel plate and method App 20010003293 - Hirata, Norimasa ; et al.	2001-06-14
Ferrite stainless steel sheet having less planar anisotropy and excellent anti-ridging characteristics and process for producing same Grant 5,851,316 - Yazawa , et al. December 22, 1	1998-12-22
Chromium steel sheets having an excellent press formability Grant 5,709,836 - Fujisawa , et al. January 20, 1	1998-01-20

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