Inventor · disambiguated record
Naohito Kato
Also filed as: KATO NAOHITO
16 granted patents·1 pending application·465 citations·filing 1989–2015
94Inventor score
Top patents by PatentIndex Score
17 records- 0194US5519245AInsulated gate bipolar transistor with reverse conducting currentNIPPON DENSO CO·Filed 1993·Granted May 21, 1996·128 cites·37 claims
- 0289US5621234AVertical semiconductor device with breakdown voltage improvement regionNIPPON DENSO CO·Filed 1994·Granted Apr 15, 1997·85 cites·12 claims
- 0384US5510634AInsulated gate bipolar transistorNIPPON DENSO CO·Filed 1994·Granted Apr 23, 1996·60 cites·27 claims
- 0483US5723882AInsulated gate field effect transistor having guard ring regionsNIPPON DENSO CO·Filed 1995·Granted Mar 3, 1998·60 cites·19 claims
- 0577US7800174B2Power semiconductor switching-device and semiconductor power module using the deviceDENSO CORP·Filed 2005·Granted Sep 21, 2010·8 cites·13 claims
- 0674US5169793AMethod of making an insulated gate bipolar transistor having gate shield regionNIPPON DENSO CO·Filed 1991·Granted Dec 8, 1992·33 cites·2 claims
- 0772US7755295B2Vehicle head lamp deviceDENSO CORP·Filed 2007·Granted Jul 13, 2010·5 cites·9 claims
- 0865US5464992AInsulated gate bipolar transistor provided with a minority carrier extracting layerNIPPON DENSO CO·Filed 1994·Granted Nov 7, 1995·22 cites·10 claims
- 0960US5475258APower semiconductor device with protective elementNIPPON DENSO CO·Filed 1995·Granted Dec 12, 1995·24 cites·17 claims
- 1050US4994880ASemiconductor device constituting bipolar transistorNIPPON DENSO CO·Filed 1989·Granted Feb 19, 1991·13 cites·14 claims
- 1149US5973338AInsulated gate type bipolar-transistorNIPPON DENSO CO·Filed 1997·Granted Oct 26, 1999·12 cites·15 claims
- 1242US9815400B2Headlight control device and headlightDENSO CORP·Filed 2015·Granted Nov 14, 2017·0 cites·15 claims
- 1341US5609145AInternal combustion engine ignition systemNIPPON DENSO CO·Filed 1995·Granted Mar 11, 1997·6 cites·1 claims
- 1438US6281546B1Insulated gate field effect transistor and manufacturing method of the sameDENSO CORP·Filed 1997·Granted Aug 28, 2001·6 cites·26 claims
- 1535US2005162798A1Switch circuit and ignition apparatus employing the circuitDENSO COPORATION·Filed 2004·Application pending·0 cites
- 1632US5719412AInsulated gate bipolar transistorNIPPON DENSO CO·Filed 1995·Granted Feb 17, 1998·2 cites·14 claims
- 1730US6452219B1Insulated gate bipolar transistor and method of fabricating the sameDENSO CORP·Filed 1997·Granted Sep 17, 2002·1 cites·34 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →