Inventor · disambiguated record
Masaru Ito
Also filed as: ITO MASARU · KAYAMA KUNIFUSA
69 granted patents·18 pending applications·1,326 citations·filing 1976–2022
99Inventor score
Top patents by PatentIndex Score
87 records- 0198US4748609AMethod and apparatus for composite tracking servo system with track offset correction and rotary optical disc having at least one correction mark for correcting track offsetHITACHI LTD·Filed 1986·Granted May 31, 1988·119 cites·21 claims
- 0297US4707816AMethod and apparatus for composite wobbled and push-pull tracking servo systemHITACHI LTD·Filed 1986·Granted Nov 17, 1987·98 cites·13 claims
- 0394US5964016ALong bar member machining apparatusKAWASAKI HEAVY IND LTD·Filed 1997·Granted Oct 12, 1999·116 cites·6 claims
- 0493US4985881ARecord carrier for a magneto-optical disc memory having guide grooves of a plurality of tracks disposed with a predetermined relation to light spot diameterHITACHI LTD·Filed 1987·Granted Jan 15, 1991·46 cites·18 claims
- 0590US6734928B2Liquid crystal display deviceHITACHI LTD·Filed 2002·Granted May 11, 2004·40 cites·8 claims
- 0690US6185818B1Long bar member machining apparatus and methodKAWASAKI HEAVY IND LTD·Filed 1999·Granted Feb 13, 2001·55 cites·3 claims
- 0789US8388071B2Braking controllerYOKOYAMA ATSUSHI·Filed 2008·Granted Mar 5, 2013·14 cites·14 claims
- 0888US11371656B2Inspection apparatus for hydrogen gas dispenserIWATANI CORP·Filed 2019·Granted Jun 28, 2022·4 cites·6 claims
- 0988US7383902B2Hybrid car and control apparatus therefor, and hybrid four-wheel-drive car and control apparatus thereforHITACHI LTD·Filed 2003·Granted Jun 10, 2008·52 cites·20 claims
- 1088US5063829AVariable displacement swash plate type compressorHITACHI LTD·Filed 1990·Granted Nov 12, 1991·65 cites·21 claims
- 1187US4723903AStamper for replicating high-density data recording disksHITACHI LTD·Filed 1985·Granted Feb 9, 1988·61 cites·14 claims
- 1284US8189993B2Medical support control systemTASHIRO KOICHI·Filed 2008·Granted May 29, 2012·11 cites·8 claims
- 1384US7802218B2Layout analysis method and apparatus for semiconductor integrated circuitFUJITSU SEMICONDUCTOR LTD·Filed 2006·Granted Sep 21, 2010·14 cites·8 claims
- 1482US5553051AIncreased intensity optical recording medium with adjacent grooves of different optical depth and a method and apparatus for reproducing the sameHITACHI LTD·Filed 1995·Granted Sep 3, 1996·39 cites·24 claims
- 1581US7455133B2Electric four-wheel drive vehicle and control unit for sameHITACHI LTD·Filed 2006·Granted Nov 25, 2008·20 cites·5 claims
- 1680US8662350B2Storage container for dental adhesiveNAKATSUKA TOSHIYUKI·Filed 2009·Granted Mar 4, 2014·8 cites·8 claims
- 1779US5581531AMethod of making optical disk master and an optical diskHITACHI LTD·Filed 1994·Granted Dec 3, 1996·38 cites·19 claims
- 1879US5105728ABalanced variable-displacement compressorHITACHI LTD·Filed 1990·Granted Apr 21, 1992·40 cites·10 claims
- 1978US7835888B2Method and apparatus for extracting characteristic of semiconductor integrated circuitFUJITSU SEMICONDUCTOR LTD·Filed 2006·Granted Nov 16, 2010·8 cites·9 claims
- 2078US4794736AArrangement for mechanically and accurately processing a workpiece with a position detecting pattern or patternsCITIZEN WATCH CO LTD·Filed 1988·Granted Jan 3, 1989·40 cites·16 claims
- 2176US5296995AMethod of magnetically recording and reading data, magnetic recording medium, its production method and magnetic recording apparatusHITACHI LTD·Filed 1993·Granted Mar 22, 1994·58 cites·23 claims
- 2273US4095142AHigh frequency discharge lamp for a spectral-line sourceHITACHI LTD·Filed 1977·Granted Jun 13, 1978·13 cites·3 claims
- 2372US5636895ASeal structure for weather stripTOYODA GOSEI KK·Filed 1996·Granted Jun 10, 1997·37 cites·7 claims
- 2472US4087668AElectrical contactMEIDENSHA ELECTRIC MFG CO LTD·Filed 1976·Granted May 2, 1978·16 cites·7 claims
- 2570US11421404B2Construction machineKOBELCO CONSTR MACH CO LTD·Filed 2019·Granted Aug 23, 2022·1 cites·9 claims
- 2670US5338178AEmbossing metal holdHITACHI LTD·Filed 1991·Granted Aug 16, 1994·30 cites·9 claims
- 2769US5231914AVariable displacement compressorHITACHI LTD·Filed 1991·Granted Aug 3, 1993·27 cites·13 claims
- 2867US7649606B2Electro-optical device and electronic apparatusEPSON IMAGING DEVICES CORP·Filed 2006·Granted Jan 19, 2010·3 cites·13 claims
- 2967US6098594AElectric-control-type throttle apparatusHITACHI LTD·Filed 1998·Granted Aug 8, 2000·23 cites·17 claims
- 3067US5447670AMethod of and apparatus for forming weather strip by extrusionTOYODA GOSEI KK·Filed 1994·Granted Sep 5, 1995·28 cites·13 claims
- 3166US9027936B2GasketYOSHITSUNE SHUJI·Filed 2009·Granted May 12, 2015·4 cites·3 claims
- 3264US8056660B2Vehicle, generator control apparatus in vehicle, and vehicle drive unitIMURA SHINYA·Filed 2006·Granted Nov 15, 2011·6 cites·1 claims
- 3363US7455143B2Vehicle drive unitHITACHI LTD·Filed 2006·Granted Nov 25, 2008·5 cites·10 claims
- 3463US4835756AOptical memory apparatus using an optical disc having guide-grooves of V-shape and predetermined optical depth and access method thereforHITACHI LTD·Filed 1987·Granted May 30, 1989·12 cites·15 claims
- 3561US7871403B2Medical support control systemOLYMPUS MEDICAL SYSTEMS CORP·Filed 2008·Granted Jan 18, 2011·0 cites·1 claims
- 3659USD727978SRear cover for construction machineKOBELCO CONSTR MACH CO LTD·Filed 2014·Granted Apr 28, 2015·10 cites·1 claims
- 3759US5930582ARare earth-iron-boron permanent magnet and method for the preparation thereofSHINETSU CHEMICAL CO·Filed 1998·Granted Jul 27, 1999·16 cites·9 claims
- 3858US6543416B2Electric-control-type throttle apparatusHITACHI LTD·Filed 2002·Granted Apr 8, 2003·8 cites·2 claims
- 3957US6078237ARare earth-based permanent magnet material and method for the preparation thereofSHINETSU CHEMICAL CO·Filed 1998·Granted Jun 20, 2000·14 cites·6 claims
- 4056US10094473B2Heat-resistant gasketNOK CORP·Filed 2014·Granted Oct 9, 2018·1 cites·3 claims
- 4156US9581244B2Seal bead structure of gasketANZAI TAKANORI·Filed 2012·Granted Feb 28, 2017·1 cites·2 claims
- 4256US2009189907A1Medical support control systemTASHIRO KOICHI·Filed 2008·Application pending·0 cites
- 4355US12392112B2Work machine state monitoring system and work machine state monitoring methodKOBELCO CONSTR MACH CO LTD·Filed 2021·Granted Aug 19, 2025·0 cites·8 claims
- 4455US4815943AVariable displacement wobble plate compressor with capacity control valveHITACHI LTD·Filed 1987·Granted Mar 28, 1989·16 cites·13 claims
- 4555US4782712AVariable displacement compressorHITACHI LTD·Filed 1987·Granted Nov 8, 1988·14 cites·3 claims
- 4655US2025052033A1Image display system, remote operation assistance system, and image display methodKOBELCO CONSTR MACH CO LTD·Filed 2022·Application pending·0 cites
- 4754US7816874B2Vehicle driving systemHITACHI LTD·Filed 2008·Granted Oct 19, 2010·3 cites·9 claims
- 4854US7040439B2Hybrid car control apparatusHITACHI LTD·Filed 2003·Granted May 9, 2006·11 cites·4 claims
- 4953US5976271AMethod for the preparation of rare earth based anisotropic permanent magnetSHINETSU CHEMICAL CO·Filed 1998·Granted Nov 2, 1999·12 cites·6 claims
- 5053US2009213140A1Medical support control systemITO MASARU·Filed 2008·Application pending·0 cites
Showing the top 50 of 87 patent records by PatentIndex Score.
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