Tokyo R & D Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B60L ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL 175
 
  
 
B62K CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE133

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5396970 Electromotive scooterOct 04, 93Mar 14, 95[B62K, B60L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7151671 Power supplyExpiredNov 28, 02Dec 19, 06[H05K]
7095146 Motor having housing memberExpiredJul 29, 02Aug 22, 06[H02K]
6833784 Electric vehicleExpiredMar 06, 02Dec 21, 04[B60R]
6762572 Electric machine, electric machine systemExpiredMay 22, 02Jul 13, 04[B80L]
6741065 Electric device and method for charging and discharging battery unit of the sameExpiredJan 30, 02May 25, 04[H02J]
6704201 Power feed and heat dissipating device for power semiconductor devicesExpiredOct 29, 01Mar 09, 04[H05K]
6700253 Motor and production method of motorExpiredJan 18, 02Mar 02, 04[H02K]
6624610 Electric vehicleExpiredAug 21, 01Sep 23, 03[H02J]
6613472 Battery cooling structureExpiredNov 07, 01Sep 02, 03[H01M]
6295487 Hybrid vehicle and method of controlling the travel of the vehicleExpiredMar 14, 00Sep 25, 01[G05D, B60L]
6265853 Power source unit for transferring energy between power sources that power an electric vehicleExpiredNov 05, 98Jul 24, 01[H02M, H02H]
6258422 Molding method for thermosetting resin based, rubber vulcanization type, fiber reinforced composite material, and thermosetting resin, based, rubber vulcanization type, fiber reinforced composite materialExpiredJun 18, 99Jul 10, 01[B29D]
6157149 Kinetic energy regenerating device for an electric motor bicycleExpiredSep 17, 99Dec 05, 00[B62M, H02P]
6107761 Drive for electric vehicle and control method of the sameExpiredJan 27, 97Aug 22, 00[H02P]
5853058 Electric power unit and power transmitting unit for electric vehiclesExpiredMar 24, 97Dec 29, 98[B60R]
5827148 Variable speed drive unit for electric vehicle and variable speed driving methodExpiredJan 21, 97Oct 27, 98[H02P]
5785339 Suspension device for a bicycleExpiredOct 21, 96Jul 28, 98[B62K]
5771475 Traveling control apparatus for electric vehiclesExpiredSep 29, 95Jun 23, 98[H02P]
5594411 Electromotive scooterExpiredMay 13, 94Jan 14, 97[B60Q]
5207288 Scooter body and front-wheel drive type electromotive scooterExpiredJan 24, 91May 04, 93[B62M]

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