US Patent No: 5,246,792

Number of patents in Portfolio can not be more than 2000

Structure of ion exchange membrane

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Abstract

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Disclosed herein are a structure of an ion exchange membrane comprising the ion exchange membrane and at least one ion-conductive thin layer having a lower glass transition temperature than that of the ion exchange membrane on at least one surface of the membrane. According to the present invention, an electrochemical cell can be formed of which an ion exchange membrane and electrodes may be sufficiently bonded to maximize the cell performance.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MASAHIRO WATANABEMADISON, CT10
STONEHART ASSOCIATES INC.MADISON, CT22
TANAKA KIKINZOKU KOGYO K.K.TOKYO177

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Watanabe, Masahiro Anjo, JP 498 2649

Cited Art Landscape

Patent Info (Count) # Cites Year
 
AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH (1)
4,328,086 Method for the manufacture of ion-exchange membrane-catalytic metal composite 10 1980
 
BDF IP HOLDINGS LTD. (1)
5,176,966 Fuel cell membrane electrode and seal assembly 82 1990
 
HITACHI, LTD. (1)
4,478,917 Fuel cell 64 1983

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
LYNNTECH INTERNATIONAL, LTD. (11)
6,287,431 Integrated ozone generator system 3 1997
5,989,407 Generation and delivery device for ozone gas and ozone dissolved in water 18 1997
5,972,196 Electrochemical production of ozone and hydrogen peroxide 52 1997
6,576,096 Generation and delivery device for ozone gas and ozone dissolved in water 7 1998
6,551,474 Generation and delivery device for ozone gas and ozone dissolved in water 4 1999
6,461,487 Generation and delivery device for ozone gas 8 1999
6,551,490 Generation and delivery device for ozone gas and ozone dissolved in water 4 2001
6,712,951 Integrated ozone generator process 3 2001
6,746,580 Generation and delivery device for ozone gas and ozone dissolved in water 3 2001
6,620,210 Method of washing laundry using ozone to degrade organic material 6 2002
6,984,304 Generation and delivery device for ozone gas and ozone dissolved in water 2 2003
 
EMERGENT POWER INC. (8)
6,030,718 Proton exchange membrane fuel cell power system 88 1997
6,218,035 Proton exchange membrane fuel cell power system 57 1999
6,468,682 Ion exchange membrane fuel cell 35 2000
6,743,536 Fuel cell power system and method of controlling a fuel cell power system 16 2001
RE39556 Fuel cell and method for controlling same 1 2001
7,326,480 Fuel cell power system and method of controlling a fuel cell power system 8 2004
8,026,020 Proton exchange membrane fuel cell stack and fuel cell stack module 2 2007
8,597,846 Proton exchange membrane fuel cell stack and fuel cell stack module 0 2012
 
W. L. GORE & ASSOCIATES, INC. (7)
7,094,851 Low equivalent weight ionomer 9 2001
6,861,489 Low equivalent weight ionomer 0 2001
7,041,409 Low equivalent weight ionomer 1 2005
7,022,428 Low equivalent weight ionomer 0 2005
8,071,702 Low equivalent weight ionomer 0 2006
7,615,307 Low equivalent weight ionomer 0 2006
7,579,102 Low equivalent weight ionomer 0 2006
 
LYNNTECH POWER SYSTEMS, LTD. (4)
5,709,961 Low pressure fuel cell system 33 1996
6,054,228 Fuel cell system for low pressure operation 61 1997
6,410,180 Fuel cell system for low pressure operation 39 2000
6,852,437 Fuel cell system for low pressure operation 5 2002
 
LYNNTECH, INC. (2)
5,635,039 Membrane with internal passages to permit fluid flow and an electrochemical cell containing the same 75 1994
6,149,810 Membrane with supported internal passages 28 1998
 
FULLERENE USA, INC. (1)
6,706,431 Fuel cell 14 2001
 
HYENERGY SYSTEMS, INC. (1)
7,078,361 Fuel cell system for low pressure operation 4 2004
 
KOREA ATOMIC ENERGY RESEARCH INSTITUTE, A NON-PROFIT CORPORATION ESTABLISHED UNDER THE LAW OF THE REPUBLIC OF KOREA (1)
8,603,931 Method of preparing catalyst for fuel cell 0 2007
 
LOCKHEED MARTIN CORPORATION (1)
6,131,851 Apparatus having an energy generating skin as an outer covering 14 1998
 
LYNNTECH INTERNATIONAL, INC. (1)
6,387,241 Method of sterilization using ozone 25 1999
 
RELION, INC. (1)
6,096,449 Fuel cell and method for controlling same 94 1998
 
RELLON, INC. (1)
8,003,274 Direct liquid fuel cell 2 2007
 
TANAKA KIKINZOKU KOGYO K.K. (1)
5,472,799 Solid polymer electrolyte fuel cell 57 1993
 
TERSANO INC. (1)
6,964,739 Device and method for generating and applying ozonated water 35 2001
 
The Dow Chemical Company (1)
5,654,109 Composite fuel cell membranes 30 1995
 
UNITED STATES OF AMERICA, THE (1)
6,733,913 Fuel cell system for low pressure operation 11 2002
 
WATANABE, MASAHIRO (1)
5,800,938 Sandwich-type solid polymer electrolyte fuel cell 15 1995

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