Masahiro Watanabe
Patent Owner
Stats
- 3 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Jan 15, 2002 most recent publication
Details
- 3 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 329 Total Citation Count
- Sep 14, 1992 Earliest Filing
- 7 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
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]
Expired/Abandoned/Withdrawn Patents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]
5728485 Electrode for polymer electrolyte electrochemical cell and process of preparing sameExpiredJun 12, 97Mar 17, 98[H01M]
5294232 Process of preparing solid polymer electrolyte type fuel cellExpiredDec 31, 92Mar 15, 94[H01M]
Top Inventors for This Owner
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