Inventor · disambiguated record
Tohru Oka
Also filed as: OKA TOHRU
55 granted patents·14 pending applications·2,631 citations·filing 1994–2018
98Inventor score
Top patents by PatentIndex Score
69 records- 0199US5462051AMedical communication systemCOLIN CORP·Filed 1994·Granted Oct 31, 1995·1.1k cites·14 claims
- 0285US6626842B2Heart-sound analyzing apparatusCOLIN CORP·Filed 2001·Granted Sep 30, 2003·170 cites·7 claims
- 0385US6461927B1Semiconductor device and method of producing the sameHITACHI LTD·Filed 2001·Granted Oct 8, 2002·37 cites·4 claims
- 0485US5836887APhysical information monitor system having means for determining reference range for abnormality determination, based on moving average of previously obtained valuesCOLIN CORP·Filed 1996·Granted Nov 17, 1998·388 cites·4 claims
- 0584US7567128B2Power amplifier suppressing radiation of second harmonic over wide frequency bandSHARP KK·Filed 2007·Granted Jul 28, 2009·14 cites·4 claims
- 0683US10256323B2Method of manufacturing semiconductor device including an n type semiconductor region formed in a p type semiconductor layerTOYODA GOSEI KK·Filed 2017·Granted Apr 9, 2019·3 cites·23 claims
- 0783US10153356B2Method of manufacturing semiconductor device, and semiconductor deviceTOYODA GOSEI KK·Filed 2017·Granted Dec 11, 2018·3 cites·19 claims
- 0883US5743856AApparatus for measuring pulse-wave propagation velocityCOLIN CORP·Filed 1996·Granted Apr 28, 1998·256 cites·14 claims
- 0978US9972725B2Semiconductor device and manufacturing method of the sameTOYODA GOSEI KK·Filed 2017·Granted May 15, 2018·2 cites·9 claims
- 1078US9691846B2Semiconductor device including an insulating layer which includes negatively charged microcrystalTOYODA GOSEI KK·Filed 2015·Granted Jun 27, 2017·2 cites·16 claims
- 1177US9548204B2Semiconductor device, manufacturing method of the same and method of suppressing decrease of flat band voltageTOYODA GOSEI KK·Filed 2015·Granted Jan 17, 2017·2 cites·16 claims
- 1276US6645154B2Blood-pressure-waveform monitoring apparatusCOLIN CORP·Filed 2001·Granted Nov 11, 2003·79 cites·8 claims
- 1375US9905432B2Semiconductor device, method for manufacturing the same and power converterTOYODA GOSEI KK·Filed 2016·Granted Feb 27, 2018·2 cites·13 claims
- 1472US10276731B2Schottky barrier diodeTOYODA GOSEI KK·Filed 2018·Granted Apr 30, 2019·1 cites·20 claims
- 1572US9831311B2Semiconductor device and method of manufacturing the sameTOYODA GOSEI KK·Filed 2015·Granted Nov 28, 2017·2 cites·11 claims
- 1672US7321265B2Distortion compensating circuit having negative gain deviation, power amplifier using the same, and communication device having power amplifierSHARP KK·Filed 2005·Granted Jan 22, 2008·7 cites·15 claims
- 1771US10236373B2Semiconductor device and production method thereforTOYODA GOSEI KK·Filed 2017·Granted Mar 19, 2019·2 cites·16 claims
- 1868US5729203AEmergency call systemCOLIN CORP·Filed 1994·Granted Mar 17, 1998·130 cites·15 claims
- 1966US10332754B2Method of manufacturing nitride semiconductor deviceTOYODA GOSEI KK·Filed 2016·Granted Jun 25, 2019·1 cites·24 claims
- 2066US6491638B2Circulation-condition monitoring apparatusCOLIN CORP·Filed 2001·Granted Dec 10, 2002·39 cites·14 claims
- 2165US6808496B2Oscillometric automatic blood-pressure measuring apparatusCOLIN CORP·Filed 2002·Granted Oct 26, 2004·32 cites·10 claims
- 2265US6696711B2Semiconductor device and power amplifier using the sameRENESAS TECH CORP·Filed 2002·Granted Feb 24, 2004·10 cites·9 claims
- 2364US5772601AApparatus for evaluating cardiac function of living subjectCOLIN CORP·Filed 1996·Granted Jun 30, 1998·122 cites·27 claims
- 2463US6645156B2Continuous blood-pressure monitoring apparatusCOLIN CORP·Filed 2001·Granted Nov 11, 2003·29 cites·7 claims
- 2559US6576937B2Semiconductor device and power amplifier using the sameHITACHI LTD·Filed 2001·Granted Jun 10, 2003·7 cites·8 claims
- 2659US6547742B2Apparatus for measuring pulse-wave propagation velocityCOLIN CORP·Filed 2002·Granted Apr 15, 2003·14 cites·3 claims
- 2759US2003187693A1Premium updating method and apparatusCOLIN CORP·Filed 2002·Application pending·0 cites
- 2859US2003177036A1Statistical-medical-information supplying method and apparatusCOLIN CORP·Filed 2002·Application pending·0 cites
- 2958US9793369B2MIS-type semiconductor deviceTOYODA GOSEI KK·Filed 2015·Granted Oct 17, 2017·1 cites·16 claims
- 3058US2003191668A1Doctor-evaluation-data providing method and apparatus, and doctor-pay determining method and apparatus, each for remote diagnosisCOLIN CORP·Filed 2002·Application pending·0 cites
- 3158US2003177037A1Health-related-information supplying method and apparatusCOLIN CORP·Filed 2002·Application pending·0 cites
- 3258US2003177034A1Medical-information supplying method and apparatusCOLIN CORP·Filed 2002·Application pending·0 cites
- 3358US2003177035A1Medical-information supplying method and apparatusCOLIN CORP·Filed 2002·Application pending·0 cites
- 3458US2003177177A1Instructive-information supplying method and apparatusCOLIN CORP·Filed 2002·Application pending·0 cites
- 3555US6482163B2Postoperative-condition evaluating apparatusCOLIN CORP·Filed 2001·Granted Nov 19, 2002·11 cites·12 claims
- 3655US5830149APhysical information monitor system having means for indicating amount of deviation of monitored information from normal informationCOLIN CORP·Filed 1996·Granted Nov 3, 1998·84 cites·8 claims
- 3754US10026808B2Semiconductor device including insulating film that includes negatively charged microcrystalTOYODA GOSEI KK·Filed 2017·Granted Jul 17, 2018·0 cites·13 claims
- 3854US6610017B2Continuous blood-pressure monitoring apparatusCOLIN CORP·Filed 2001·Granted Aug 26, 2003·11 cites·11 claims
- 3953US6406434B2Blood-pressure measuring apparatus for patient under blood-dialysis treatmentCOLIN CORP·Filed 2000·Granted Jun 18, 2002·8 cites·5 claims
- 4052US9431260B2Semiconductor device and manufacturing method of the sameTOYODA GOSEI KK·Filed 2014·Granted Aug 30, 2016·0 cites·14 claims
- 4148US7001819B2Semiconductor device and power amplifier using the sameRENESAS TECH CORP·Filed 2004·Granted Feb 21, 2006·2 cites·2 claims
- 4247US10490408B2Method for manufacturing semiconductor deviceTOYODA GOSEI KK·Filed 2018·Granted Nov 26, 2019·0 cites·8 claims
- 4347US2009206371A1Nitride semiconductor device and power conversion apparatus including the sameOKA TOHRU·Filed 2009·Application pending·0 cites
- 4444US10879349B2Method for manufacturing semiconductor device and edge termination structure of semiconductor deviceTOYODA GOSEI KK·Filed 2018·Granted Dec 29, 2020·0 cites·18 claims
- 4544US10026851B2MPS diodeTOYODA GOSEI KK·Filed 2017·Granted Jul 17, 2018·0 cites·18 claims
- 4644US9583580B2Manufacturing method of the semiconductor device electrode having three metal layersTOYODA GOSEI KK·Filed 2015·Granted Feb 28, 2017·0 cites·11 claims
- 4744US9559218B2Semiconductor device and method of manufacturing the sameTOYODA GOSEI KK·Filed 2016·Granted Jan 31, 2017·0 cites·18 claims
- 4844US2009050936A1Nitride semiconductor device and power converter including the sameOKA TOHRU·Filed 2008·Application pending·0 cites
- 4943US9685348B2Semiconductor device, method of manufacturing the same and power converterTOYODA GOSEI KK·Filed 2016·Granted Jun 20, 2017·0 cites·13 claims
- 5043US9653564B2Semiconductor device and method of manufacturing the sameTOYODA GOSEI KK·Filed 2016·Granted May 16, 2017·0 cites·10 claims
Showing the top 50 of 69 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →