Inventor · disambiguated record
Masahiko Ibamoto
Also filed as: IBAMOTO MASAHIKO · KIWAKI HISAKATSU · MATSUMOTO G · NARITA HIROSHI
64 granted patents·3 pending applications·1,830 citations·filing 1975–2011
99Inventor score
Files withHITACHI LTD59HITACHI CAR ENG CO LTD3HITACHI LTD & HITACHI CAR ENGI1HITACHI LTD AND HITACHI AUTOMO1IBAMOTO MASAHIKO1
Top patents by PatentIndex Score
67 records- 0196US5018072AOptically readable mail system with general and receiver specific informationHITACHI LTD·Filed 1990·Granted May 21, 1991·133 cites·31 claims
- 0295US7093512B2Automatic transmission, dynamo-electric machine, and carHITACHI LTD·Filed 2004·Granted Aug 22, 2006·76 cites·3 claims
- 0395US6941830B2Automatic transmission, dynamo-electric machine, and carHITACHI LTD·Filed 2001·Granted Sep 13, 2005·79 cites·17 claims
- 0494US7387043B2Method of changing gears of an automobile, automotive gear shifter, controller for automotive gear shifter, and actuator controller for automotive gear shifterHITACHI LTD·Filed 2007·Granted Jun 17, 2008·21 cites·6 claims
- 0594US5468196AMethod and an apparatus for controlling a car equipped with an automatic transmission having a lockup clutchHITACHI LTD·Filed 1993·Granted Nov 21, 1995·42 cites·26 claims
- 0694US4335337AControl system for electric motor vehicleHITACHI LTD·Filed 1979·Granted Jun 15, 1982·68 cites·3 claims
- 0793US7226379B2Active shift transmission, transmission control unit and automobileHITACHI CAR ENG CO LTD·Filed 2004·Granted Jun 5, 2007·54 cites·6 claims
- 0891US5826208APowertrain control device for a vehicle using targeted tongue generation for eliminating shift shockHITACHI LTD·Filed 1995·Granted Oct 20, 1998·47 cites·24 claims
- 0990US7083545B2Automatic transmission system and automobile using the systemHITACHI CAR ENG CO LTD·Filed 2003·Granted Aug 1, 2006·32 cites·13 claims
- 1090US6685591B2Driving apparatus for a vehicleHITACHI LTD·Filed 2001·Granted Feb 3, 2004·52 cites·16 claims
- 1190US6106434AApparatus and method for controlling gearshifts in response to gradient, vehicle speed and busy shift areas or engine brake areasHITACHI LTD·Filed 1998·Granted Aug 22, 2000·45 cites·4 claims
- 1290US5681238AMethod and an apparatus for controlling a car equipped with an automatic transmission having a lockup clutchHITACHI LTD·Filed 1996·Granted Oct 28, 1997·33 cites·3 claims
- 1390US5101096AOptical recording sheet and method and apparatus for reproducing the sameHITACHI LTD·Filed 1989·Granted Mar 31, 1992·99 cites·2 claims
- 1489US7476176B2Automatic transmission, dynamo-electric machine, and carHITACHI LTD·Filed 2006·Granted Jan 13, 2009·18 cites·4 claims
- 1589US7150698B2Power transmission apparatus for automobileHITACHI LTD·Filed 2002·Granted Dec 19, 2006·56 cites·6 claims
- 1689US5496227ATorque control method and apparatus for internal combustion engine and motor vehicles employing the sameHITACHI LTD·Filed 1994·Granted Mar 5, 1996·77 cites·43 claims
- 1789US4937808AIntergrated optical head with flexible substrate portionHITACHI LTD·Filed 1988·Granted Jun 26, 1990·40 cites·6 claims
- 1888US6014604APowertrain control deviceHITACHI LTD & HITACHI CAR ENGI·Filed 1998·Granted Jan 11, 2000·39 cites·2 claims
- 1987US6095117AMethod and an apparatus for controlling a car equipped with an automatic transmission having a lockup clutchHITACHI LTD·Filed 1999·Granted Aug 1, 2000·59 cites·5 claims
- 2086US7367917B2Shift change control system and automatic transmission system of automobileHITACHI LTD·Filed 2006·Granted May 6, 2008·12 cites·14 claims
- 2185US8887589B2Twin clutch transmissionIBAMOTO MASAHIKO·Filed 2011·Granted Nov 18, 2014·12 cites·13 claims
- 2284US4490666AControl of induction motor using PWM inverterHITACHI LTD·Filed 1982·Granted Dec 25, 1984·34 cites·20 claims
- 2383US5508923AEngine control system limiting engine output based on vehicle operating environmentsHITACHI LTD·Filed 1993·Granted Apr 16, 1996·56 cites·15 claims
- 2482US7331897B2Active shift transmission, transmission control unit and automobileHITACHI LTD·Filed 2007·Granted Feb 19, 2008·13 cites·6 claims
- 2581US4124812ABraking control apparatus for an electric motor operated vehicleHITACHI LTD·Filed 1976·Granted Nov 7, 1978·30 cites·11 claims
- 2680US6173226B1Control apparatus and method for powertrain of a vehicleHITACHI LTD·Filed 1998·Granted Jan 9, 2001·66 cites·18 claims
- 2780US4946242AOptical part including integral combination of optical fiber and light emitting or receiving element and method of manufacturing the sameHITACHI LTD·Filed 1988·Granted Aug 7, 1990·34 cites·37 claims
- 2878US7628720B2Vehicle control apparatus and methodHITACHI LTD·Filed 2007·Granted Dec 8, 2009·7 cites·14 claims
- 2978US5938712ADrive shaft torque controlling apparatus for use in a vehicle having a power transmission mechanism and method thereforHITACHI LTD AND HITACHI AUTOMO·Filed 1996·Granted Aug 17, 1999·55 cites·5 claims
- 3076US4388573AElectric vehicle control deviceHITACHI LTD·Filed 1981·Granted Jun 14, 1983·26 cites·4 claims
- 3175US4327313AControl apparatus for electric carHITACHI LTD·Filed 1980·Granted Apr 27, 1982·27 cites·15 claims
- 3274US5688207AControl apparatus for automatic transmission and control method thereforeHITACHI LTD·Filed 1996·Granted Nov 18, 1997·22 cites·4 claims
- 3373US6063004AControl apparatus and control method for an engine powertrain of a vehicleHITACHI LTD·Filed 1997·Granted May 16, 2000·24 cites·10 claims
- 3472US7632209B2Vehicular drive system and driving methodHITACHI LTD·Filed 2006·Granted Dec 15, 2009·7 cites·2 claims
- 3570US5588936AControl apparatus for automatic transmission and control method thereforeHITACHI LTD·Filed 1995·Granted Dec 31, 1996·20 cites·22 claims
- 3670US4945348ALiquid crystal display combined with signal input tabletHITACHI LTD·Filed 1988·Granted Jul 31, 1990·39 cites·14 claims
- 3770US4315203AControl system for induction motor-driven carHITACHI LTD·Filed 1980·Granted Feb 9, 1982·24 cites·11 claims
- 3869US8666614B2Twin-clutch type hybrid transmissionNAKAMURA HIDEKI·Filed 2010·Granted Mar 4, 2014·4 cites·24 claims
- 3968US5785627ATorque feedback shift control device and methodHITACHI LTD·Filed 1996·Granted Jul 28, 1998·18 cites·10 claims
- 4066US5724866AMethod and an apparatus for controlling a car equipped with an automatic transmission having a lockup clutchHITACHI LTD·Filed 1996·Granted Mar 10, 1998·11 cites·2 claims
- 4166US5613920ATorque feedback shift control device and methodHITACHI LTD·Filed 1995·Granted Mar 25, 1997·17 cites·18 claims
- 4264US6067494AControl apparatus and control method for automatic transmission of vehicleHITACHI LTD·Filed 1997·Granted May 23, 2000·19 cites·26 claims
- 4363US5580334AMethod and an apparatus for controlling a car equipped with an automatic transmission having a lockup clutchHITACHI LTD·Filed 1995·Granted Dec 3, 1996·10 cites·11 claims
- 4461US7967721B2Control apparatus for an automatic transmissionHITACHI LTD·Filed 2009·Granted Jun 28, 2011·2 cites·14 claims
- 4560US4338558AInduction motor control system and methodHITACHI LTD·Filed 1980·Granted Jul 6, 1982·14 cites·16 claims
- 4658US7194926B2Method of changing gears of automobile, automotive gear shifter, controller for automotive gear shifter, and actuator controller for automotive gear shifterHITACHI CAR ENG CO LTD·Filed 2004·Granted Mar 27, 2007·5 cites·6 claims
- 4756US4836657AOptical change-over switch utilizing ferroelectric liquid crystal materialHITACHI LTD·Filed 1986·Granted Jun 6, 1989·18 cites·9 claims
- 4855US6811515B2Transmission control apparatus for an automatic transmissionHITACHI LTD·Filed 2003·Granted Nov 2, 2004·10 cites·22 claims
- 4954US5888166AMethod and an apparatus for controlling a car equipped with an automatic transmission having a lockup clutchHITACHI LTD·Filed 1997·Granted Mar 30, 1999·7 cites·4 claims
- 5053US4126889AProtective circuit for d.c. circuitHITACHI LTD·Filed 1977·Granted Nov 21, 1978·13 cites·11 claims
Showing the top 50 of 67 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →