Assignee
PIONEER MAGNETICS INC
US·10 granted patents·178 citations·filing 1982–1988
Top patents by PatentIndex Score
10 records- 0174US4672228ABattery backup system for switched power supplyPIONEER MAGNETICS INC·Filed 1985·Granted Jun 9, 1987·64 cites·6 claims
- 0262US4663699ASynchronous converter circuitPIONEER MAGNETICS INC·Filed 1985·Granted May 5, 1987·24 cites·6 claims
- 0359US4672517ASwitched power supply of the forward converter typePIONEER MAGNETICS INC·Filed 1985·Granted Jun 9, 1987·21 cites·6 claims
- 0459US4477849AMagnetic disc drive head alignment systemPIONEER MAGNETICS INC·Filed 1982·Granted Oct 16, 1984·11 cites·6 claims
- 0555US4616302AOver-current sensing circuit for switching-type power supplyPIONEER MAGNETICS INC·Filed 1985·Granted Oct 7, 1986·18 cites·3 claims
- 0655US4456949AOverlap control system for push-pull switching mode inverter power supplyPIONEER MAGNETICS INC·Filed 1982·Granted Jun 26, 1984·16 cites·3 claims
- 0746US4656570ASelf-balancing push-pull square wave converter type of switched power supplyPIONEER MAGNETICS INC·Filed 1985·Granted Apr 7, 1987·14 cites·4 claims
- 0833US4644252ANoise isolator circuit for power supply fanPIONEER MAGNETICS INC·Filed 1985·Granted Feb 17, 1987·5 cites·4 claims
- 0930US4855665AStatus indicating circuit for paralleled switching power suppliesPIONEER MAGNETICS INC·Filed 1988·Granted Aug 8, 1989·4 cites·5 claims
- 1024US4384320APush-pull switching mode inverter-type power supplyPIONEER MAGNETICS INC·Filed 1982·Granted May 17, 1983·1 cites·10 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →