Inventor · disambiguated record
Toshio Takahashi
Also filed as: TAKAHASHI TOSHIO
214 granted patents·19 pending applications·3,392 citations·filing 1973–2021
99Inventor score
Top patents by PatentIndex Score
233 records- 0199US11088643B1Demagnetization sensing for permanent magnet synchronous motor driveINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2020·Granted Aug 10, 2021·13 cites·21 claims
- 0298US6948856B2Rolling bearing device and ring with sensor for the rolling bearing deviceNSK LTD·Filed 2001·Granted Sep 27, 2005·60 cites·33 claims
- 0397US7148664B2High frequency partial boost power factor correction control circuit and methodINT RECTIFIER CORP·Filed 2005·Granted Dec 12, 2006·99 cites·13 claims
- 0495US10997998B1Tape embedded drive with tied spindle structureWESTERN DIGITAL TECH INC·Filed 2020·Granted May 4, 2021·7 cites·20 claims
- 0595US7180273B2Low switching frequency power factor correction circuitINT RECTIFIER CORP·Filed 2005·Granted Feb 20, 2007·60 cites·42 claims
- 0695US6501084B1Lamp unit using short-wave light emitting deviceTOYODA GOSEI KK·Filed 2000·Granted Dec 31, 2002·134 cites·11 claims
- 0795US4964522AThermoplastic blown bottle with a handleMITSUBISHI PLASTICS IND·Filed 1989·Granted Oct 23, 1990·106 cites·6 claims
- 0895US4676112AElectromagnetic flow meterHITACHI LTD·Filed 1986·Granted Jun 30, 1987·83 cites·9 claims
- 0994US7164590B2Power transfer system with reduced component ratingsINT RECTIFIER CORP·Filed 2003·Granted Jan 16, 2007·58 cites·19 claims
- 1094US5938510ADisk cleaner deviceKIORITZ CORP·Filed 1997·Granted Aug 17, 1999·77 cites·16 claims
- 1193US7014368B2Sensor and rolling bearing apparatus with sensorNSK LTD·Filed 2003·Granted Mar 21, 2006·28 cites·17 claims
- 1292US6593751B2Motor insulation fault detection by sensing ground leak currentINT RECTIFIER CORP·Filed 2001·Granted Jul 15, 2003·52 cites·8 claims
- 1392US6213292B1Molded conveyor chainTSUBAKIMOTO CHAIN CO·Filed 1999·Granted Apr 10, 2001·60 cites·11 claims
- 1491US7511636B2Data conversion unit, data conversion method, and electronic apparatus using the data conversion unitRICOH KK·Filed 2007·Granted Mar 31, 2009·13 cites·14 claims
- 1591US7274241B2Global closed loop control system with DV/DT control and EMI/switching loss reductionINT RECTIFIER CORP·Filed 2006·Granted Sep 25, 2007·27 cites·4 claims
- 1691US6841908B2Stator core for a magnetic bearing and the method of manufacturing itISHIKAWAJIMA HARIMA HEAVY IND·Filed 2002·Granted Jan 11, 2005·42 cites·4 claims
- 1791US6717702B1Image reading apparatusCANON KK·Filed 2000·Granted Apr 6, 2004·50 cites·8 claims
- 1891US4469930AThree-dimensional laser cutting system by a playback methodFUJI TOOL & DIE·Filed 1982·Granted Sep 4, 1984·64 cites·7 claims
- 1990US7227331B2Safety interlock and protection circuit for permanent magnet motor driveINT RECTIFIER CORP·Filed 2006·Granted Jun 5, 2007·15 cites·24 claims
- 2090US5252195AProcess for producing a printed wiring boardMITSUBISHI RAYON CO·Filed 1992·Granted Oct 12, 1993·93 cites·6 claims
- 2190US4952133AApparatus for forming a blown bottle with a handleMITSUBISHI PLASTICS IND·Filed 1989·Granted Aug 28, 1990·64 cites·8 claims
- 2290US4725157APrinting device with a pair of housings combined for relative rocking motionBROTHER IND LTD·Filed 1986·Granted Feb 16, 1988·56 cites·12 claims
- 2389US10998008B1Interface connector for tape embedded driveWESTERN DIGITAL TECH INC·Filed 2020·Granted May 4, 2021·3 cites·20 claims
- 2489US10699730B1Dual symmetrical actuator hard disk driveWESTERN DIGITAL TECH INC·Filed 2019·Granted Jun 30, 2020·11 cites·20 claims
- 2589US7245100B2Multi-axis AC servo control system and methodINT RECTIFIER CORP·Filed 2006·Granted Jul 17, 2007·18 cites·16 claims
- 2689US7061195B2Global closed loop control system with dv/dt control and EMI/switching loss reductionINT RECTIFIER CORP·Filed 2003·Granted Jun 13, 2006·50 cites·11 claims
- 2789US6335608B1Fault protection circuitry for motor controllersINT RECTIFIER CORP·Filed 2000·Granted Jan 1, 2002·47 cites·1 claims
- 2889US4696342APlate-type heat exchangerNIPPON DENSO CO·Filed 1986·Granted Sep 29, 1987·52 cites·8 claims
- 2988US9930204B2Image reading apparatusCANON KK·Filed 2016·Granted Mar 27, 2018·6 cites·13 claims
- 3088US4337089ACopper-nickel-tin alloys for lead conductor materials for integrated circuits and a method for producing the sameNIPPON TELEGRAPH & TELEPHONE·Filed 1980·Granted Jun 29, 1982·43 cites·2 claims
- 3188US4305114AMotor control centerTOKYO SHIBAURA ELECTRIC CO·Filed 1980·Granted Dec 8, 1981·71 cites·13 claims
- 3287US11295771B2Head positioning assembly for tape embedded driveWESTERN DIGITAL TECH INC·Filed 2020·Granted Apr 5, 2022·3 cites·16 claims
- 3387US11184499B2Original reading apparatusCANON KK·Filed 2020·Granted Nov 23, 2021·2 cites·11 claims
- 3487US8994842B2Zoom lens and image pickup apparatus equipped with sameOLYMPUS IMAGING CORP·Filed 2013·Granted Mar 31, 2015·8 cites·21 claims
- 3586US10916269B2Magnet for motor of magnetic storage deviceWESTERN DIGITAL TECH INC·Filed 2019·Granted Feb 9, 2021·2 cites·20 claims
- 3686US7405528B2Global closed loop control system with DV/DT control and EMI/switching loss reductionINT RECTIFIER CORP·Filed 2006·Granted Jul 29, 2008·18 cites·10 claims
- 3786US6566778B1Cage-type induction motor for high rotational speedsISHIKAWAJIMA HARIMA HEAVY IND·Filed 2000·Granted May 20, 2003·42 cites·4 claims
- 3886US6420667B1Compound switch deviceALPS ELECTRIC CO LTD·Filed 2001·Granted Jul 16, 2002·38 cites·4 claims
- 3986US4413309APrinted circuit boardSONY CORP·Filed 1981·Granted Nov 1, 1983·46 cites·4 claims
- 4085US11165381B2Speed contant control and power constant control of a permanent magnet synchronous motorINFINEON TECHNOLOGIES AUSTRIA AG·Filed 2019·Granted Nov 2, 2021·3 cites·20 claims
- 4185US8964302B2Image pickup apparatus having zoom lensOLYMPUS IMAGING CORP·Filed 2013·Granted Feb 24, 2015·7 cites·36 claims
- 4285US6560036B2Real image type view finderOLYMPUS OPTICAL CO·Filed 2001·Granted May 6, 2003·33 cites·33 claims
- 4385US4830101AAluminum heat exchanger and method for producing aluminum heat exchangerNIPPON DENSO CO·Filed 1986·Granted May 16, 1989·46 cites·18 claims
- 4484US8810713B2Image pickup apparatus and image pickup device for performing auto-focusingMATSUO KEIGO·Filed 2012·Granted Aug 19, 2014·7 cites·11 claims
- 4584US7742203B2Image reading apparatusCANON KK·Filed 2008·Granted Jun 22, 2010·8 cites·7 claims
- 4684US6333815B1Real image mode variable magnification finderOLYMPUS OPTICAL CO·Filed 2000·Granted Dec 25, 2001·25 cites·13 claims
- 4783US11170823B1Tape embedded drive with multiple feedthrough connectionsWESTERN DIGITAL TECH INC·Filed 2020·Granted Nov 9, 2021·2 cites·22 claims
- 4883US8792018B2Image capturing apparatus, image capturing method, and computer-readable recording mediumMATSUZAWA YOSHINORI·Filed 2011·Granted Jul 29, 2014·5 cites·21 claims
- 4983US8767310B2Zoom lens, and imaging apparatus incorporating the sameOLYMPUS IMAGING CORP·Filed 2013·Granted Jul 1, 2014·5 cites·19 claims
- 5083US5444316AHybrid stepping motor, driving method for the same and coil winding method for the sameISHIKAWAJIMA HARIMA HEAVY IND·Filed 1993·Granted Aug 22, 1995·73 cites·29 claims
Showing the top 50 of 233 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →