Inventor · disambiguated record
Hirofumi Shimizu
Also filed as: SHIMIZU HIROFUMI
47 granted patents·6 pending applications·551 citations·filing 1977–2021
98Inventor score
Top patents by PatentIndex Score
53 records- 0190US7355311B2Rotor of axial gap motor and method of producing sameNISSAN MOTOR·Filed 2005·Granted Apr 8, 2008·21 cites·4 claims
- 0289US6561941B2Infinite speed ratio transmissionNISSAN MOTOR·Filed 2001·Granted May 13, 2003·32 cites·7 claims
- 0384US6569051B2Infinite speed ratio continuously variable transmissionNISSAN MOTOR·Filed 2001·Granted May 27, 2003·27 cites·16 claims
- 0483US7342986B2Digital PLL deviceSONY CORP·Filed 2004·Granted Mar 11, 2008·17 cites·8 claims
- 0583US6559027B2Semiconductor device and process for producing the smeHITACHI LTD·Filed 2001·Granted May 6, 2003·26 cites·7 claims
- 0681US10616989B2Plasma generation apparatus including measurement device and plasma thrusterMITSUBISHI HEAVY IND LTD·Filed 2015·Granted Apr 7, 2020·3 cites·9 claims
- 0781US7028386B2Rotor body and production method thereofNISSAN MOTOR·Filed 2003·Granted Apr 18, 2006·28 cites·3 claims
- 0880US10680488B2In-vehicle drive device with cooling channelsNISSAN MOTOR·Filed 2015·Granted Jun 9, 2020·2 cites·8 claims
- 0980US5916293ALockup control apparatusNISSAN MOTOR·Filed 1997·Granted Jun 29, 1999·33 cites·34 claims
- 1079US6517461B2Infinitely variable transmissionNISSAN MOTOR·Filed 2001·Granted Feb 11, 2003·20 cites·12 claims
- 1177US10807496B2Vehicle power supply apparatusSUBARU CORP·Filed 2019·Granted Oct 20, 2020·2 cites·19 claims
- 1277US9566851B2Mounting structure of high voltage unit for electric vehicleNISSAN MOTOR·Filed 2013·Granted Feb 14, 2017·7 cites·15 claims
- 1377US6174222B1Process for fabrication of semiconductor device, semiconductor wafer for use in the process and process for the preparation of the waferHITACHI LTD·Filed 1996·Granted Jan 16, 2001·56 cites·8 claims
- 1476US7469367B2Phase error determination method and digital phase-locked loop systemSONY CORP·Filed 2006·Granted Dec 23, 2008·2 cites·2 claims
- 1573US9647514B2Motor control unit having integrated inverter unitNISSAN MOTOR·Filed 2013·Granted May 9, 2017·3 cites·8 claims
- 1673US8680826B2Optimized conversion efficiency for regulator apparatus with plural parallel regulatorsKONDO KATSUTOSHI·Filed 2011·Granted Mar 25, 2014·6 cites·7 claims
- 1773US4116719AMethod of making semiconductor device with PN junction in stacking-fault free zoneHITACHI LTD·Filed 1977·Granted Sep 26, 1978·34 cites·13 claims
- 1872US6881646B2Semiconductor device and process for producing the sameHITACHI ULSI SYS CO LTD·Filed 2003·Granted Apr 19, 2005·13 cites·21 claims
- 1972US5152219AScreen process printing apparatus using a screen reinforced by stripsDAINIPPON SCREEN MFG·Filed 1992·Granted Oct 6, 1992·20 cites·18 claims
- 2070US6242323B1Semiconductor device and process for producing the sameHITACHI LTD·Filed 1998·Granted Jun 5, 2001·28 cites·23 claims
- 2169US6226079B1Defect assessing apparatus and method, and semiconductor manufacturing methodHITACHI LTD·Filed 1998·Granted May 1, 2001·35 cites·9 claims
- 2268US6848831B2Rotation shaft support structure of a motor/generatorNISSAN MOTOR·Filed 2002·Granted Feb 1, 2005·10 cites·3 claims
- 2368US6565481B2Input torque limiting device for an infinitely variable transmissionNISSAN MOTOR·Filed 2001·Granted May 20, 2003·12 cites·3 claims
- 2468US6302819B1Infinite speed ratio transmission deviceNISSAN MOTOR·Filed 2000·Granted Oct 16, 2001·12 cites·10 claims
- 2565US7730366B2Phase error determination method and digital phase-locked loop systemSONY CORP·Filed 2004·Granted Jun 1, 2010·4 cites·2 claims
- 2665US6904331B2Method of paper machine control and apparatus for the methodYOKOGAWA ELECTRIC CORP·Filed 2002·Granted Jun 7, 2005·6 cites·18 claims
- 2763US10505427B2Rotating electrical machine systemNISSAN MOTOR·Filed 2014·Granted Dec 10, 2019·2 cites·11 claims
- 2863US7271514B2Rotor structureNISSAN MOTOR·Filed 2005·Granted Sep 18, 2007·3 cites·6 claims
- 2962US7001297B2Hybrid transmissionNISSAN MOTOR·Filed 2003·Granted Feb 21, 2006·9 cites·10 claims
- 3061US7653346B2Communication terminal device, communication system, communication method, and programSONY CORP·Filed 2006·Granted Jan 26, 2010·3 cites·13 claims
- 3161US7402473B2Semiconductor device and process for producing the sameRENESAS TECH CORP·Filed 2005·Granted Jul 22, 2008·1 cites·6 claims
- 3260US6057241AMethod of manufacturing a semiconductor integrated circuit deviceHITACHI LTD·Filed 1998·Granted May 2, 2000·27 cites·32 claims
- 3359US10260487B2MPD thruster that accelerates electrodeless plasma and electrodeless plasma accelerating method using MPD thrusterMITSUBISHI HEAVY IND LTD·Filed 2014·Granted Apr 16, 2019·2 cites·15 claims
- 3458US10539122B2Plasma accelerating apparatus and plasma accelerating methodMITSUBISHI HEAVY IND LTD·Filed 2014·Granted Jan 21, 2020·1 cites·14 claims
- 3555US7315968B2Phase error determination method and digital phase-locked loop systemSONY CORP·Filed 2006·Granted Jan 1, 2008·2 cites·4 claims
- 3654US4961877ASolid silicone defoamerDOW CORNING·Filed 1988·Granted Oct 9, 1990·17 cites·4 claims
- 3754US2010295840A1Liquid crystal display apparatus and backlight devicePANASONIC CORP·Filed 2009·Application pending·0 cites
- 3853US6958027B2Hybrid transmissionNISSAN MOTOR·Filed 2003·Granted Oct 25, 2005·8 cites·9 claims
- 3950US10934989B2Vehicle control apparatusSUBARU CORP·Filed 2019·Granted Mar 2, 2021·0 cites·15 claims
- 4050US10800417B2Control apparatus for vehicleSUBARU CORP·Filed 2018·Granted Oct 13, 2020·0 cites·9 claims
- 4150US9561762B2Electric unitNISSAN MOTOR·Filed 2013·Granted Feb 7, 2017·1 cites·6 claims
- 4250US2005140851A1Communication terminal apparatusFiled 2005·Application pending·0 cites
- 4349US10538248B2Control apparatus for vehicleSUBARU CORP·Filed 2018·Granted Jan 21, 2020·0 cites·18 claims
- 4449US2010041441A1Electronic apparatusTOSHIBA KK·Filed 2009·Application pending·0 cites
- 4546US12463612B2Pi-type noise filter disposed within a case and including first and second partitions with a gap therebetween that are interposed between stages of the filterHITACHI ASTEMO LTD·Filed 2021·Granted Nov 4, 2025·0 cites·4 claims
- 4646US10730520B2Vehicle control apparatusSUBARU CORP·Filed 2019·Granted Aug 4, 2020·0 cites·4 claims
- 4745US9197130B2Regulator device having degradation detectionFUJITSU LTD·Filed 2013·Granted Nov 24, 2015·0 cites·3 claims
- 4844US2014362005A1Information terminal device, key correction method, and recording mediumFUJITSU LTD·Filed 2014·Application pending·0 cites
- 4942US9484819B2Regulator deviceFUJITSU LTD·Filed 2012·Granted Nov 1, 2016·0 cites·12 claims
- 5041US5111743AScreen process printing plate for printing with high precisionDAINIPPON SCREEN MFG·Filed 1991·Granted May 12, 1992·14 cites·11 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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