Masahiro Watanabe

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 2152
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6339038 Catalyst for a fuel cell containing polymer solid electrolyte and method for producing catalyst thereofJan 18, 00Jan 15, 02[B01J]
5922487 Anode electrocatalyst for fuel cell and process of preparing sameOct 06, 95Jul 13, 99[H01M]
5766787 Solid polymer electrolyte compositionAug 17, 95Jun 16, 98[H01M]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5871552 Process of preparing electrode for solid polymer electrolyte fuel cellExpiredNov 21, 96Feb 16, 99[H01M]
5869132 Process of preparing fluorinated materialExpiredMar 26, 93Feb 09, 99[B05D]
5728485 Electrode for polymer electrolyte electrochemical cell and process of preparing sameExpiredJun 12, 97Mar 17, 98[H01M]
5472799 Solid polymer electrolyte fuel cellExpiredSep 22, 93Dec 05, 95[H01M]
5453332 Electrode structure for fuel cellExpiredSep 22, 93Sep 26, 95[H01M]
5294232 Process of preparing solid polymer electrolyte type fuel cellExpiredDec 31, 92Mar 15, 94[H01M]
5246792 Structure of ion exchange membraneExpiredSep 14, 92Sep 21, 93[H01M]

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