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Hiroshi Kihira
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Chiba, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Titanium or titanium alloy material for fuel cell separator having...
Patent number
10,074,857
Issue date
Sep 11, 2018
Nippon Steel & Sumitomo Metal Corporation
Hiroshi Kihira
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Titanium material or titanium alloy material for fuel cell separato...
Patent number
9,947,942
Issue date
Apr 17, 2018
Nippon Steel & Sumitomo Metal Corporation
Kazuhiro Takahashi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Titanium material for solid polymer fuel cell separator use and met...
Patent number
9,065,081
Issue date
Jun 23, 2015
Nippon Steel & Sumitomo Metal Corporation
Koki Tanaka
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Rotary grinding tool and its production method
Patent number
8,845,400
Issue date
Sep 30, 2014
Nippon Steel & Sumikin Anti-Corrosion Co., Ltd.
Atsumi Imai
B24 - GRINDING POLISHING
Information
Patent Grant
Polymer electrolyte fuel cell separator made of pure titanium or ti...
Patent number
8,785,031
Issue date
Jul 22, 2014
Nippon Steel Sumitomo Metal Corporation
Michio Kaneko
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Titanium material for solid polymer fuel cell separator having low...
Patent number
8,603,268
Issue date
Dec 10, 2013
Nippon Steel & Sumitomo Metal Corporation
Kazuhiro Takahashi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Solid polymer type fuel cell separator and method of production of...
Patent number
8,361,676
Issue date
Jan 29, 2013
Nippon Steel Corporation
Koki Tanaka
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Stainless steel, titanium, or titanium alloy solid polymer fuel cel...
Patent number
8,304,141
Issue date
Nov 6, 2012
Sintokogio Ltd.
Hiroshi Kihira
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Solid polymer type fuel cell separator and method of production of...
Patent number
8,182,961
Issue date
May 22, 2012
Nippon Steel Corporation
Koki Tanaka
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Stainless steel, titanium, or titanium alloy solid polymer fuel cel...
Patent number
7,807,281
Issue date
Oct 5, 2010
Nippon Steel Corporation
Hiroshi Kihira
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for depositing metal having high corrosion resistance and lo...
Patent number
6,726,953
Issue date
Apr 27, 2004
Sintobrator, Ltd.
Wataru Hisada
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Separators for solid polymer fuel cells and method for producing sa...
Patent number
6,709,781
Issue date
Mar 23, 2004
Nippon Steel Corporation
Noriyuki Suzuki
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Metal foil excellent in electrical contact stability
Patent number
6,703,143
Issue date
Mar 9, 2004
Nippon Steel Corporation
Hiroshi Kihira
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
TITANIUM OR TITANIUM ALLOY FOR FUEL CELL SEPARATOR HAVING HIGH CONT...
Publication number
20150325864
Publication date
Nov 12, 2015
NIPPON STEEL & SUMITOMO METAL CORPORATION
Takumi NISHIMOTO
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
TITANIUM MATERIAL OR TITANIUM ALLOY MATERIAL FOR FUEL CELL SEPARATO...
Publication number
20150280251
Publication date
Oct 1, 2015
NIPPON STEEL & SUMITOMO METAL CORPORATION
Kazuhiro Takahashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
TITANIUM OR TITANIUM ALLOY MATERIAL FOR FUEL CELL SEPARATOR HAVING...
Publication number
20150147678
Publication date
May 28, 2015
NIPPON STEEL & SUMITOMO METAL CORPORATION
Hiroshi Kihira
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
ROTARY GRINDING TOOL AND ITS PRODUCTION METHOD
Publication number
20120270484
Publication date
Oct 25, 2012
Dai Nippon Toryo Co., Ltd.
Atsumi Imai
B24 - GRINDING POLISHING
Information
Patent Application
Titanium material for solid polymer fuel cell separator use and met...
Publication number
20120171468
Publication date
Jul 5, 2012
Koki Tanaka
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Method of treatment for imparting conductivity to surface of separa...
Publication number
20120064232
Publication date
Mar 15, 2012
Keisuke Yamazaki
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
SOLID POLYMER TYPE FUEL CELL SEPARATOR AND METHOD OF PRODUCTION OF...
Publication number
20120034372
Publication date
Feb 9, 2012
Koki Tanaka
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Titanium material for solid polymer fuel cell separator having low...
Publication number
20110177430
Publication date
Jul 21, 2011
Kazuhiro Takahashi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Stainless steel, titanium, or titanium alloy solid polymer fuel cel...
Publication number
20110032537
Publication date
Feb 10, 2011
NIPPON STEEL CORPORATION
Hiroshi Kihira
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR APPLYING HIGHLY DURABLE REPAIR-COATING
Publication number
20090304917
Publication date
Dec 10, 2009
Dai Nippon Toryo Co., Ltd.
Hiroshi Kihira
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Stainless Steel, Titanium, or Titanium Alloy Solid Polymer Fuel Cel...
Publication number
20090226785
Publication date
Sep 10, 2009
NIPPON STEEL CORPORATION
Hiroshi Kihira
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Solid Polymer Type Fuel Cell Separator and Method of Production of...
Publication number
20090226787
Publication date
Sep 10, 2009
NIPPON STEEL CORPORATION
Koki Tanaka
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
POLYMER ELECTROLYTE FUEL CELL SEPARATOR MADE OF PURE TITANIUM OR TI...
Publication number
20090197143
Publication date
Aug 6, 2009
Michio Kaneko
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Low- contact-resistance interface structure between separator and c...
Publication number
20060147784
Publication date
Jul 6, 2006
Hiroshi Kihira
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Low-contact-resistance interface structure between separator and ca...
Publication number
20040048134
Publication date
Mar 11, 2004
Hiroshi Kihira
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Metal foil excellent in electrical contact stability
Publication number
20030091854
Publication date
May 15, 2003
Hiroshi Kihira
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Separators for solid polymer fuel cells and method for producing sa...
Publication number
20020004158
Publication date
Jan 10, 2002
Noriyuki Suzuki
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Method for depositing metal having high corrosion resistance and lo...
Publication number
20010006702
Publication date
Jul 5, 2001
(1) Sintobrator, Ltd., (2) Nippon Steel Corporation.
Wataru Hisada
H01 - BASIC ELECTRIC ELEMENTS