Polymer electrolyte fuel cell

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7201993
APP PUB NO 20020182478A1
SERIAL NO

10089814

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention provides a polymer electrolyte fuel cell having an increased reaction area by forming a gas channel, a proton channel and an electron channel very close to each other inside a catalyst layer. This polymer electrolyte fuel cell includes a hydrogen ion conductive polymer electrolyte membrane; and a pair of electrodes having catalyst layers sandwiching the hydrogen ion conductive polymer electrolyte membrane between them and gas diffusion layers in contact with the catalyst layers, in which the catalyst layer of at least one of the electrodes comprises carbon particles supporting a noble metal catalyst, and the carbon particles include at least two kinds of carbon particles adsorbing a hydrogen ion conductive polymer electrolyte in mutually different dispersed states.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
PANASONIC CORPORATIONOSAKA, JP11609

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hori, Yoshihiro Ikoma, JP 116 1407
Kosako, Shinya Nishinomiya, JP 24 188
Morita, Junji Moriguchi, JP 49 138
Sakai, Osamu Neyagawa, JP 69 655
Sugawara, Yasushi Higashiosaka, JP 66 446
Uchida, Makoto Hirakata, JP 111 903
Yamamoto, Masao Kishiwada, JP 121 1477
Yasumoto, Eiichi Kyoto, JP 70 507
Yoshida, Akihiko Hirakata, JP 110 1100

Cited Art Landscape

Patent Info (Count) # Cites Year
 
WATANABE, MASAHIRO (1)
* 5766788 Electrode composition material for polymer electrolyte fuel cell and process of preparing same 32 1996
 
TANAKA KIKINZOKU KOGYO K.K. (1)
* 5728485 Electrode for polymer electrolyte electrochemical cell and process of preparing same 29 1997
 
TOYOTA JIDOSHA KABUSHIKI KAISHA (1)
* 6015635 Electrode for fuel cell and method of manufacturing electrode for fuel cell 15 1998
 
LOS ALAMOS NATIONAL SECURITY, LLC (1)
5211984 Membrane catalyst layer for fuel cells 141 1991
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (2)
5723173 Method for manufacturing solid polymer electrolyte fuel cell 24 1996
6060187 Solid polymer type fuel cell and method for manufacturing the same 7 1998
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
JIDOSHA KABUSHIKI KAISHA (1)
* 2004/0110,060 Membrane-electrode assembly and production method thereof 1 2003
 
TORAY INDUSTRIES, INC. (1)
* 7824786 Membrane electrode complex and solid type fuel cell using it 1 2004
 
KOLON INDUSTRIES, INC. (1)
9543590 Catalyst layer composition for fuel cell, electrode for fuel cell, method of preparing electrode for fuel cell, membrane-electrode assembly for fuel cell, and fuel cell system using the membrane-electrode assembly 0 2012
 
FORD GLOBAL TECHNOLOGIES, LLC (1)
* 2011/0159,403 Layered Catalyst Assembly and Electrode Assembly Employing the Same 1 2010
 
GM GLOBAL TECHNOLOGY OPERATIONS LLC (1)
* 7687185 Using sacrificial material to mitigate catalyst support corrosion in fuel cell electrode 1 2006
 
POLYFUEL, INC. (1)
* 2006/0110,631 Catalyst ink, process for making catalyst ink and for preparing catalyst coated membranes 3 2005
 
HIRAMATSU, MINEO (1)
* 2008/0274,392 Method and Apparatus for Producing Catalyst Layer for Fuel Cell 0 2006
* Cited By Examiner

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Oct 10, 2018
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