Inventor · disambiguated record
Kiyoshi Sakamoto
Also filed as: OIE NAOYUKI · SAKAMOTO KIYOSHI
46 granted patents·9 pending applications·1,547 citations·filing 1978–2019
99Inventor score
Top patents by PatentIndex Score
55 records- 0198US6462492B1Position-sensorless controlling method of synchronous motorHITACHI LTD·Filed 2000·Granted Oct 8, 2002·147 cites·13 claims
- 0298US6396229B1Method of estimating a rotor position of synchronous motor, method of controlling synchronous motor with no position sensor and a controller of synchronous motorHITACHI LTD·Filed 2000·Granted May 28, 2002·259 cites·24 claims
- 0397US7294988B2Synchronous motor drive unit and a driving method thereofHITACHI LTD·Filed 2005·Granted Nov 13, 2007·88 cites·20 claims
- 0495US6690137B2Sensorless control system for synchronous motorHITACHI LTD·Filed 2002·Granted Feb 10, 2004·74 cites·23 claims
- 0593US8541971B2Driving system of permanent magnet synchronous motorSAKAI TOSHIFUMI·Filed 2010·Granted Sep 24, 2013·22 cites·20 claims
- 0693US6628099B2Synchronous motor driving system and sensorless control method for a synchronous motorHITACHI LTD·Filed 2002·Granted Sep 30, 2003·45 cites·7 claims
- 0792US5521823ALearning control vehicleMAZDA MOTOR·Filed 1994·Granted May 28, 1996·82 cites·53 claims
- 0891US6639377B2Driving device for synchronous motorHITACHI LTD·Filed 2001·Granted Oct 28, 2003·51 cites·13 claims
- 0991US5094115AOperation apparatus for vehicle automatic transmission mechanismMAZDA MOTOR·Filed 1991·Granted Mar 10, 1992·69 cites·10 claims
- 1091US4770105APiping travelling apparatusHITACHI LTD·Filed 1986·Granted Sep 13, 1988·78 cites·3 claims
- 1189US6028779APower inverter deviceHITACHI LTD·Filed 1998·Granted Feb 22, 2000·96 cites·33 claims
- 1289US4531823AElectrostatic copying machine having removable paper pathSANYO ELECTRIC CO·Filed 1982·Granted Jul 30, 1985·43 cites·23 claims
- 1387US7342378B2System and method for driving synchronous motorHITACHI LTD·Filed 2006·Granted Mar 11, 2008·21 cites·11 claims
- 1487US5221951ASheet-feeding apparatus having sheet storing means with sheet removal from either sideSANYO ELECTRIC CO·Filed 1992·Granted Jun 22, 1993·33 cites·20 claims
- 1586US7064514B2Motor drive system for AC motorsHITACHI HOME & LIFE SOLUTIONS·Filed 2004·Granted Jun 20, 2006·35 cites·17 claims
- 1685US6598699B2Electric power steering system for vehicleMAZDA MOTOR·Filed 2001·Granted Jul 29, 2003·35 cites·16 claims
- 1784US8044618B2Control apparatus for AC motorHITACHI LTD·Filed 2008·Granted Oct 25, 2011·15 cites·14 claims
- 1882US6205374B1Vehicle characteristic change system and methodMAZDA MOTOR·Filed 1998·Granted Mar 20, 2001·71 cites·82 claims
- 1981US8305020B2Electric power conversion device, compressor motor with the device, and air conditioner with the motorSUZUKI TAKAHIRO·Filed 2009·Granted Nov 6, 2012·16 cites·13 claims
- 2079US7276876B2Synchronous motor driving apparatusHITACHI IND EQUIPMENT SYS·Filed 2005·Granted Oct 2, 2007·12 cites·20 claims
- 2179US6230084B1Vehicle characteristic change system and methodMAZDA MOTOR·Filed 2000·Granted May 8, 2001·31 cites·42 claims
- 2277US6650081B2Synchronous motor driving systemHITACHI LTD·Filed 2002·Granted Nov 18, 2003·20 cites·26 claims
- 2376US5043762ACopy systemSANYO ELECTRIC CO·Filed 1988·Granted Aug 27, 1991·21 cites·52 claims
- 2475US7808202B2Beat-less controller for permanent magnet motorHITACHI IND EQUIPMENT SYS·Filed 2007·Granted Oct 5, 2010·10 cites·10 claims
- 2574US4764789AApparatus for inputting image forming conditionSANYO ELECTRIC CO·Filed 1987·Granted Aug 16, 1988·19 cites·24 claims
- 2673US5327207ACopy machine having plural trays each tray capable of storing two different stacks of sheetsSANYO ELECTRIC CO·Filed 1992·Granted Jul 5, 1994·22 cites·18 claims
- 2771US7388341B2Control system for permanent magnet synchronous motor and moduleHITACHI LTD·Filed 2005·Granted Jun 17, 2008·8 cites·14 claims
- 2871US6918289B2Air pressure information display device of vehicle tireMAZDA MOTOR·Filed 2002·Granted Jul 19, 2005·12 cites·11 claims
- 2971US6622553B2Air pressure warning device of vehicle tireMAZDA MOTOR·Filed 2002·Granted Sep 23, 2003·12 cites·12 claims
- 3070US4213679AProjectorSANYO ELECTRIC CO·Filed 1978·Granted Jul 22, 1980·8 cites·3 claims
- 3168US4439810AElectric capacitor with enclosure structure consisting of plastic laminated filmMARCON ELECTRONICS CO·Filed 1982·Granted Mar 27, 1984·14 cites·5 claims
- 3266US9458736B2Wind turbine generator systemYANAGIBASHI TAKUJI·Filed 2011·Granted Oct 4, 2016·2 cites·17 claims
- 3364US7919941B2Semiconductor power converterHITACHI LTD·Filed 2008·Granted Apr 5, 2011·6 cites·16 claims
- 3462US4764181AProcess for producing an electrolytic capacitorUBE INDUSTRIES·Filed 1986·Granted Aug 16, 1988·15 cites·14 claims
- 3561US7030589B2Driving systems of AC motorHITACHI IND EQUIPMENT SYS·Filed 2004·Granted Apr 18, 2006·11 cites·20 claims
- 3660US6912452B2System and method for providing control gain of vehicleMAZDA MOTOR·Filed 2002·Granted Jun 28, 2005·10 cites·34 claims
- 3757US6564898B2Electric power steering apparatus for motor vehicleMAZDA MOTOR·Filed 2001·Granted May 20, 2003·10 cites·3 claims
- 3852US8760279B2Air pressure information display system of vehicle tireANDOU FUMITAKA·Filed 2002·Granted Jun 24, 2014·5 cites·10 claims
- 3951US9203334B2Wind power generator system, and control method for the sameSAKAMOTO KIYOSHI·Filed 2010·Granted Dec 1, 2015·1 cites·8 claims
- 4051US7821223B2Vector controller for a permanent magnet motor and inverter moduleHITACHI LTD·Filed 2007·Granted Oct 26, 2010·2 cites·16 claims
- 4146US2008320524A1Information selection apparatus and information selection methodSAKAMOTO KIYOSHI·Filed 2008·Application pending·0 cites
- 4243US5030990AApparatus for inputting image forming conditionSANYO ELECTRIC CO·Filed 1987·Granted Jul 9, 1991·6 cites·43 claims
- 4343US2022202605A1Hallux valgus orthopedic supporterSAKAMOTO KIYOSHI·Filed 2019·Application pending·0 cites
- 4440US2018058426A1Wind Farm or Control Method of Wind FarmHITACHI LTD·Filed 2017·Application pending·0 cites
- 4538US2018013364A1Wind power generating equipment, operation method thereof, and wind farmHITACHI LTD·Filed 2017·Application pending·0 cites
- 4638US2004113572A1Control apparatus for controlling inverter for driving permanent magnet types synchronous motorHITACHI LTD·Filed 2003·Application pending·0 cites
- 4736US2003071588A1System for driving electric motorFiled 2002·Application pending·0 cites
- 4835US2007241720A1Inverter systemHITACHI LTD·Filed 2007·Application pending·0 cites
- 4934US5165715ASuspension system for automotive vehicleMAZDA MOTOR·Filed 1991·Granted Nov 24, 1992·8 cites·31 claims
- 5034US2016093919A1Vanadium Solid-Salt BatteryTOHOKU TECHNO ARCH CO LTD·Filed 2015·Application pending·0 cites
Showing the top 50 of 55 patent records by PatentIndex Score.
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