Inventor · disambiguated record
Teruo Umehara
Also filed as: UMEHARA TERUO
16 granted patents·613 citations·filing 1978–1995
95Inventor score
Top patents by PatentIndex Score
16 records- 0198US4422060AD.C. Electromagnetic actuatorHITACHI METALS LTD·Filed 1982·Granted Dec 20, 1983·122 cites·17 claims
- 0292US4758750ALinear motor of moving-coil typeHITACHI LTD·Filed 1987·Granted Jul 19, 1988·87 cites·9 claims
- 0392US4260920AMulti-pole permanent magnet rotorHITACHI LTD·Filed 1978·Granted Apr 7, 1981·55 cites·9 claims
- 0491US4490815AActuator for use in a pickup device for a video disk playerHITACHI METALS LTD·Filed 1981·Granted Dec 25, 1984·44 cites·14 claims
- 0585US4888506AVoice coil-type linear motorHITACHI METALS LTD·Filed 1988·Granted Dec 19, 1989·51 cites·10 claims
- 0684US5168185ASwing-type actuatorHITACHI METALS LTD·Filed 1991·Granted Dec 1, 1992·39 cites·7 claims
- 0779US5691581AArm assembly and voice coil motorHITACHI METALS LTD·Filed 1995·Granted Nov 25, 1997·36 cites·12 claims
- 0874US5165090ASwing-type actuatorHITACHI METALS LTD·Filed 1991·Granted Nov 17, 1992·24 cites·3 claims
- 0972US5581422AActuator with moveable coil and recording apparatusHITACHI METALS LTD·Filed 1995·Granted Dec 3, 1996·25 cites·3 claims
- 1064US5087844ALinear motorHITACHI METALS LTD·Filed 1990·Granted Feb 11, 1992·30 cites·6 claims
- 1163US5113162AFocus magnet with separate static and dynamic control coilsHITACHI METALS LTD·Filed 1991·Granted May 12, 1992·17 cites·4 claims
- 1261US5168184ASwing-type actuatorHITACHI METALS LTD·Filed 1991·Granted Dec 1, 1992·27 cites·8 claims
- 1359US5576583ASwing-type actuatorHITACHI METALS LTD·Filed 1995·Granted Nov 19, 1996·14 cites·13 claims
- 1459US5057723ALinear motorHITACHI METALS LTD·Filed 1990·Granted Oct 15, 1991·25 cites·3 claims
- 1545US4602232AElectromagnetic drive unitHITACHI METALS LTD·Filed 1985·Granted Jul 22, 1986·7 cites·5 claims
- 1640US5459359ASwing-type actuatorHITACHI METALS LTD·Filed 1993·Granted Oct 17, 1995·10 cites·7 claims
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