YUASA CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
1302 POWER TRANSFORMERS, RECTIFIERS, BATTERIES AND ACCUMULATORS134

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D543938 Storage batteryAug 02, 06Jun 05, 07[1302]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0072,086 Nonaqueous electrolyte cellAbandonedMar 18, 04Mar 29, 07[H01M]
2004/0239,502 Storage battery loaded onto vehicleAbandonedMar 11, 04Dec 02, 04[G08B]
5750285 Life indicator and lead-acid storage battery with life indicatorExpiredAug 23, 95May 12, 98[H01M]
5572418 Quasi-resonant PWM inverterExpiredAug 23, 94Nov 05, 96[H02M]
5547779 Separator for alkali-zinc batteryExpiredDec 10, 93Aug 20, 96[H01M]
5521024 Lead acid storage batteryExpiredMar 24, 95May 28, 96[H01M]
5498496 Lead acid batteryExpiredDec 14, 94Mar 12, 96[H01M]
5485744 Sulfuric acid concentration sensor for lead storage batteryExpiredMar 15, 94Jan 23, 96[G01N]
5458766 Life indicator and cartridge for indicating total water flowExpiredSep 08, 93Oct 17, 95[B01D]
5437804 Solid polymer electrolyteExpiredMay 25, 93Aug 01, 95[H01M]
5420497 Direct current power unit having main and secondary direct current power suppliesExpiredMar 25, 94May 30, 95[H02J, G05F]
5352545 Battery containing foam polyurethane resin and method of makingExpiredJan 27, 93Oct 04, 94[H01M]
5320916 Separator for alkali-zinc batteryExpiredAug 13, 92Jun 14, 94[H01M]
5290323 Manufacturing method for solid-electrolyte fuel cellExpiredJul 29, 92Mar 01, 94[H07M]

Top Inventors for This Owner

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