US Patent No: 6,455,109

Number of patents in Portfolio can not be more than 2000

Electrode for fuel cell and method of producing the same

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A method of producing an electrode having a high performance in a simple and convenient manner which does not require the use of any of the medium, surfactant and pore-producing agent is disclosed. In the disclosed method, a layer including a catalyst powder is formed on a surface of a polymer electrolyte film or a porous conductive electrode substrate by supplying an electrostatically-charged catalyst powder to the polymer electrolyte film or the porous conductive electrode substrate. Alternatively, a layer including a catalyst powder is formed on a surface of a polymer electrolyte film or a porous conductive electrode substrate by spraying the catalyst powder on the surface of the polymer electrolyte film or the porous conductive electrode substrate together with a carrier gas, thereby to cause the catalyst powder to adhere to the surface.

Loading the Abstract Image... loading....

First Claim

See full text

all claims..

Related Publications

Loading Related Publications... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.OSAKA26320

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Funakoshi, Yasutomo Sakai, JP 9 88
Gyoten, Hisaaki Shijonawate, JP 67 313
Matsumoto, Toshihiro Ibaraki, JP 173 422
Nakagawa, Kouji Habikino, JP 7 60
Sugawara, Yasushi Higashiosaka, JP 86 343
Uchida, Makoto Hirakata, JP 139 692
Yasumoto, Eiichi Kyoto, JP 94 394

Cited Art Landscape

Patent Info (Count) # Cites Year
 
The Dow Chemical Company (2)
5,171,644 Electrochemical cell electrode 21 1991
5,151,515 Oxygen reduction catalyst based upon metal dipyridylamines 12 1991
 
UNITED TECHNOLOGIES CORPORATION (2)
4,272,353 Method of making solid polymer electrolyte catalytic electrodes and electrodes made thereby 63 1980
4,313,972 Dry method for making an electrochemical cell electrode 44 1980
 
DEUTSCHE FORSCHUNGSANSTALT FUR LUFT-UND RAUMFAHRT E.V. (1)
5,738,905 Process for the production of a composite comprising electrode material, catalyst material and a solid-electrolyte membrane 13 1996
 
GM GLOBAL TECHNOLOGY OPERATIONS LLC (1)
5,316,871 Method of making membrane-electrode assemblies for electrochemical cells and assemblies made thereby 112 1993
 
Minnesota Mining and Manufacturing Company (1)
4,489,122 Transparencies for electrostatic printing 18 1982
 
The United States of America as represented by the Secretary of the Army (1)
5,372,896 Treated solid polymer electrolyte membrane for use in a fuel cell and fuel cell including the treated solid polymer electrolyte membrane 17 1993
 
Other [Check patent profile for assignment information] (1)
5,542,163 Electrically-conducting adhesion-promoter 13 1994

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
GEORGIA TECH RESEARCH CORPORATION (1)
7,752,898 Devices for probe microscopy 0 2007
 
ROHM AND HAAS COMPANY (1)
7,419,745 Method of forming an electrode structure useful in energy storage devices 5 2005

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 24, 2014
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00

Full Text

 
loading....