Inventor · disambiguated record
Kiyotaka Yamauchi
Also filed as: YAMAUCHI KIYOTAKA
19 granted patents·673 citations·filing 1986–1993
96Inventor score
Files withHITACHI METALS LTD19
Top patents by PatentIndex Score
19 records- 0197US4985089AFe-base soft magnetic alloy powder and magnetic core thereof and method of producing sameHITACHI METALS LTD·Filed 1988·Granted Jan 15, 1991·86 cites·15 claims
- 0297US4881989AFe-base soft magnetic alloy and method of producing sameHITACHI METALS LTD·Filed 1987·Granted Nov 21, 1989·110 cites·27 claims
- 0395US5160379AFe-base soft magnetic alloy and method of producing sameHITACHI METALS LTD·Filed 1991·Granted Nov 3, 1992·73 cites·6 claims
- 0493US4811187ADC-DC converter with saturable reactor reset circuitHITACHI METALS LTD·Filed 1987·Granted Mar 7, 1989·104 cites·3 claims
- 0591US5069731ALow-frequency transformerHITACHI METALS LTD·Filed 1989·Granted Dec 3, 1991·47 cites·8 claims
- 0687US4983859AMagnetic device for high-voltage pulse generating apparatusesHITACHI METALS LTD·Filed 1989·Granted Jan 8, 1991·41 cites·11 claims
- 0779US4918555AMagnetic head containing an Fe-base soft magnetic alloy layerHITACHI METALS LTD·Filed 1988·Granted Apr 17, 1990·23 cites·20 claims
- 0877US5591276AMagnetic alloy with ultrafine crystal grains and method of producing sameHITACHI METALS LTD·Filed 1993·Granted Jan 7, 1997·25 cites·25 claims
- 0974US4945339AAnti-theft sensor markerHITACHI METALS LTD·Filed 1988·Granted Jul 31, 1990·33 cites·13 claims
- 1074US4769091AMagnetic coreHITACHI METALS LTD·Filed 1987·Granted Sep 6, 1988·14 cites·3 claims
- 1171US4871925AHigh-voltage pulse generating apparatusHITACHI METALS LTD·Filed 1988·Granted Oct 3, 1989·19 cites·10 claims
- 1268US5072205AWound magnetic coreHITACHI METALS LTD·Filed 1990·Granted Dec 10, 1991·19 cites·8 claims
- 1351US5151137ASoft magnetic alloy with ultrafine crystal grains and method of producing sameHITACHI METALS LTD·Filed 1990·Granted Sep 29, 1992·11 cites·23 claims
- 1451US5083366AMethod for making wound magnetic coreHITACHI METALS LTD·Filed 1991·Granted Jan 28, 1992·10 cites·8 claims
- 1550US5443664ASurge current-suppressing circuit and magnetic device thereinHITACHI METALS LTD·Filed 1989·Granted Aug 22, 1995·13 cites·10 claims
- 1649US5337033APermanent magnet assembly for stably fixing dentureHITACHI METALS LTD·Filed 1992·Granted Aug 9, 1994·27 cites·7 claims
- 1741US4827214AMethod for measuring losses of a magnetic coreHITACHI METALS LTD·Filed 1987·Granted May 2, 1989·7 cites·9 claims
- 1839US5114503AMagnetic coreHITACHI METALS LTD·Filed 1987·Granted May 19, 1992·5 cites·1 claims
- 1937US4757219ALamination type of magnetostrictor and manufacturing method thereofHITACHI METALS LTD·Filed 1986·Granted Jul 12, 1988·6 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →