Inventor · disambiguated record
Mitsuhiko Kitagawa
Also filed as: KITAGAWA MITSUHIKO
55 granted patents·6 pending applications·1,275 citations·filing 1989–2021
99Inventor score
Top patents by PatentIndex Score
61 records- 0195US5554862APower semiconductor deviceTOSHIBA KK·Filed 1994·Granted Sep 10, 1996·135 cites·7 claims
- 0295US5329142ASelf turn-off insulated-gate power semiconductor device with injection-enhanced transistor structureTOSHIBA KK·Filed 1992·Granted Jul 12, 1994·128 cites·24 claims
- 0393US8076749B2Semiconductor deviceKITAGAWA MITSUHIKO·Filed 2008·Granted Dec 13, 2011·25 cites·14 claims
- 0493US5162876ASemiconductor device having high breakdown voltageTOSHIBA KK·Filed 1991·Granted Nov 10, 1992·122 cites·19 claims
- 0592US5448083AInsulated-gate semiconductor deviceTOSHIBA KK·Filed 1994·Granted Sep 5, 1995·75 cites·36 claims
- 0689US11334009B2Load controller and image forming apparatusOKI DATA KK·Filed 2021·Granted May 17, 2022·2 cites·13 claims
- 0789US8415711B2Semiconductor device and method for manufacturing the sameKITAGAWA MITSUHIKO·Filed 2011·Granted Apr 9, 2013·10 cites·20 claims
- 0889US6777746B2Field effect transistor and application device thereofTOSHIBA KK·Filed 2003·Granted Aug 17, 2004·55 cites·18 claims
- 0989US5689121AInsulated-gate semiconductor deviceTOSHIBA KK·Filed 1995·Granted Nov 18, 1997·61 cites·19 claims
- 1088US5838026AInsulated-gate semiconductor deviceTOSHIBA KK·Filed 1997·Granted Nov 17, 1998·58 cites·5 claims
- 1187US9024382B2Semiconductor deviceKITAGAWA MITSUHIKO·Filed 2011·Granted May 5, 2015·10 cites·17 claims
- 1287US8860171B2Semiconductor device having diode characteristicKITAGAWA MITSUHIKO·Filed 2010·Granted Oct 14, 2014·7 cites·11 claims
- 1387US5585651AInsulated-gate semiconductor device having high breakdown voltagesTOSHIBA KK·Filed 1995·Granted Dec 17, 1996·56 cites·30 claims
- 1486US9082810B2Semiconductor deviceTOSHIBA KK·Filed 2013·Granted Jul 14, 2015·8 cites·20 claims
- 1585US5464994AInsulated-gate thyristorTOSHIBA KK·Filed 1994·Granted Nov 7, 1995·45 cites·11 claims
- 1685US5381026AInsulated-gate thyristorTOSHIBA KK·Filed 1991·Granted Jan 10, 1995·46 cites·8 claims
- 1784US9530874B2Semiconductor deviceTOSHIBA KK·Filed 2015·Granted Dec 27, 2016·4 cites·20 claims
- 1880US5796125AHigh breakdown voltage semiconductor device using trench groovesTOSHIBA KK·Filed 1995·Granted Aug 18, 1998·48 cites·25 claims
- 1976US7202526B2Field effect transistor and application device thereofTOSHIBA KK·Filed 2004·Granted Apr 10, 2007·17 cites·3 claims
- 2076US5793065AInsulated-gate thyristorTOSHIBA KK·Filed 1995·Granted Aug 11, 1998·29 cites·10 claims
- 2175US9178028B2Semiconductor deviceTOSHIBA KK·Filed 2014·Granted Nov 3, 2015·3 cites·20 claims
- 2274US6236069B1Insulated-gate thyristorTOSHIBA KK·Filed 1998·Granted May 22, 2001·26 cites·6 claims
- 2373US10319844B2Semiconductor deviceTOSHIBA KK·Filed 2017·Granted Jun 11, 2019·2 cites·5 claims
- 2472US5250446AMethod of manufacturing a semiconductor device by forming at least three regions of different lifetimes of carriers at different depthsTOSHIBA KK·Filed 1992·Granted Oct 5, 1993·48 cites·4 claims
- 2570US7498635B2Field effect transistor and application device thereofTOSHIBA KK·Filed 2005·Granted Mar 3, 2009·3 cites·15 claims
- 2670US7385255B2Field effect transistor and application device thereofTOSHIBA KK·Filed 2005·Granted Jun 10, 2008·3 cites·8 claims
- 2769US5510647ASemiconductor device and method of manufacturing the sameTOSHIBA KK·Filed 1994·Granted Apr 23, 1996·26 cites·6 claims
- 2867US7030416B2Micro electro mechanical system apparatusTOSHIBA KK·Filed 2003·Granted Apr 18, 2006·11 cites·9 claims
- 2964US7439547B2Micro electro mechanical system apparatusTOSHIBA KK·Filed 2006·Granted Oct 21, 2008·3 cites·19 claims
- 3063US5243205ASemiconductor device with overvoltage protective functionTOSHIBA KK·Filed 1992·Granted Sep 7, 1993·35 cites·26 claims
- 3161US8710542B2Semiconductor deviceKITAGAWA MITSUHIKO·Filed 2011·Granted Apr 29, 2014·1 cites·11 claims
- 3261US8581298B2Semiconductor deviceKITAGAWA MITSUHIKO·Filed 2010·Granted Nov 12, 2013·1 cites·5 claims
- 3361US7479679B2Field effect transistor and application device thereofTOSHIBA KK·Filed 2006·Granted Jan 20, 2009·1 cites·18 claims
- 3461US4996586ACrimp-type semiconductor device having non-alloy structureTOSHIBA KK·Filed 1989·Granted Feb 26, 1991·27 cites·15 claims
- 3559US2015062603A1Image forming system and information processing apparatusOKI DATA KK·Filed 2014·Application pending·0 cites
- 3658US9590030B2Semiconductor device having diode characteristicTOSHIBA KK·Filed 2014·Granted Mar 7, 2017·0 cites·14 claims
- 3756US9768248B2Semiconductor device having diode characteristicTOSHIBA KK·Filed 2017·Granted Sep 19, 2017·0 cites·12 claims
- 3856US5006921APower semiconductor switching apparatus with heat sinksTOSHIBA KK·Filed 1989·Granted Apr 9, 1991·25 cites·77 claims
- 3955US7064384B2Semiconductor deviceTOSHIBA KK·Filed 2003·Granted Jun 20, 2006·7 cites·16 claims
- 4055US5298769AGTO thyristor capable of preventing parasitic thyristors from being generatedTOSHIBA KK·Filed 1993·Granted Mar 29, 1994·16 cites·16 claims
- 4153US9001382B2Image forming system and image forming apparatus configured for cost priority mode processingKITAGAWA MITSUHIKO·Filed 2012·Granted Apr 7, 2015·0 cites·7 claims
- 4253US5376815ASemiconductor device having bipolar-mos composite element pellet suitable for pressure contacted structureTOSHIBA KK·Filed 1993·Granted Dec 27, 1994·17 cites·6 claims
- 4351US10050135B2Semiconductor device and method for driving sameTOSHIBA KK·Filed 2017·Granted Aug 14, 2018·0 cites·14 claims
- 4451US9276076B2Semiconductor deviceTOSHIBA KK·Filed 2015·Granted Mar 1, 2016·0 cites·7 claims
- 4551US9000479B2Semiconductor deviceTOSHIBA KK·Filed 2014·Granted Apr 7, 2015·0 cites·5 claims
- 4651US6967357B1Voltage-driven power semiconductor deviceTOSHIBA KK·Filed 2000·Granted Nov 22, 2005·6 cites·10 claims
- 4751US5223442AMethod of making a semiconductor device of a high withstand voltageTOSHIBA KK·Filed 1992·Granted Jun 29, 1993·21 cites·2 claims
- 4850US9502402B2Semiconductor deviceTOSHIBA KK·Filed 2013·Granted Nov 22, 2016·0 cites·17 claims
- 4950US5156981AMethod of making a semiconductor device of a high withstand voltageTOSHIBA KK·Filed 1989·Granted Oct 20, 1992·17 cites·2 claims
- 5049US9741836B2Semiconductor device and method for driving sameTOSHIBA KK·Filed 2016·Granted Aug 22, 2017·0 cites·13 claims
Showing the top 50 of 61 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →