Inventor · disambiguated record
Toshio Ishikawa
Also filed as: ISHIKAWA TOSHIO
63 granted patents·7 pending applications·1,216 citations·filing 1974–2020
99Inventor score
Top patents by PatentIndex Score
70 records- 0197US10320249B2Permanent magnet rotating electric machine and method for manufacturing sameHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Jun 11, 2019·34 cites·7 claims
- 0296US5420838ADisk recording and reproducing deviceSHARP KK·Filed 1993·Granted May 30, 1995·94 cites·20 claims
- 0395USD441764SIcon image for portion of a display screenPHILIP MORRIS INC·Filed 2000·Granted May 8, 2001·60 cites·1 claims
- 0494US6333576B1Brushless motor for vehicle air conditionerASAO CO LTD·Filed 2000·Granted Dec 25, 2001·84 cites·16 claims
- 0592US4947261APortable image input deviceSHARP KK·Filed 1988·Granted Aug 7, 1990·88 cites·14 claims
- 0691US4508251ACable pulling/feeding apparatusNIPPON TELEGRAPH & TELEPHONE·Filed 1982·Granted Apr 2, 1985·83 cites·4 claims
- 0784USD510362SIcon image for a portion of a display screenPHILIP MORRIS USA INC·Filed 2003·Granted Oct 4, 2005·30 cites·1 claims
- 0883US10910899B2Rotary electric machineHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Feb 2, 2021·2 cites·12 claims
- 0982US7759837B2Rotating electrical machineHITACHI LTD·Filed 2008·Granted Jul 20, 2010·11 cites·16 claims
- 1082US7701109B2Rotating electrical machineHITACHI LTD·Filed 2007·Granted Apr 20, 2010·11 cites·20 claims
- 1180US9534321B2Monofilament for mowingSANYO TEGUSU CO LTD·Filed 2013·Granted Jan 3, 2017·2 cites·8 claims
- 1278US10797550B2Rotary electric machine and vehicle provided with the sameHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Oct 6, 2020·4 cites·12 claims
- 1378US8823236B2Stator winding for rotating electric machineISHIKAWA TOSHIO·Filed 2010·Granted Sep 2, 2014·5 cites·9 claims
- 1478US5355633AMethod of grinding a workpiece having plural cylindrical portions with plural grinding wheelsTOYODA MACHINE WORKS LTD·Filed 1992·Granted Oct 18, 1994·42 cites·4 claims
- 1577US4549132AMethod of testing and verifying a performance for insulation to ground of a disconnecting switch when breaking a charging currentHITACHI LTD·Filed 1983·Granted Oct 22, 1985·19 cites·9 claims
- 1676US6398475B1ContainerDAINICHI SHOJI KABUSHIKI KAISH·Filed 1998·Granted Jun 4, 2002·49 cites·13 claims
- 1775US6186331B1ContainerDAINICHI SHOJI K K·Filed 1998·Granted Feb 13, 2001·66 cites·9 claims
- 1875US5202862AMagneto-optical recording and reproducing device having integrally formed recording and reproducing magnetic headsSHARP KK·Filed 1991·Granted Apr 13, 1993·21 cites·9 claims
- 1975US5146170AMethod and apparatus for locating an abnormality in a gas-insulated electric deviceHITACHI LTD·Filed 1990·Granted Sep 8, 1992·42 cites·16 claims
- 2074US7021323B1Dust-incompatible article transfer container cleanerDAINICHI SHOJI KABUSHIKI KAISH·Filed 2000·Granted Apr 4, 2006·21 cites·9 claims
- 2170USD492696SIcon image for a portion of a display screenPHILIP MORRIS INC·Filed 2001·Granted Jul 6, 2004·14 cites·1 claims
- 2269US10945365B2Mower cord and manufacturing method for mower cordSANYO TEGUSU CO LTD·Filed 2015·Granted Mar 16, 2021·1 cites·17 claims
- 2369US10566873B2Rotating electrical machine having means to secure plating to cover a flow passageHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Feb 18, 2020·1 cites·8 claims
- 2469US5408264AThree-dimensional image display apparatus for optically synthesizing images formed on different surfaces on a display screenSHARP KK·Filed 1992·Granted Apr 18, 1995·27 cites·6 claims
- 2568US6002085AGas insulated switchgearHITACHI LTD·Filed 1994·Granted Dec 14, 1999·31 cites·9 claims
- 2666US5251280ALiquid crystal display apparatusSHARP KK·Filed 1991·Granted Oct 5, 1993·28 cites·8 claims
- 2765US5256976APower apparatus and method of location of a fault in a power apparatus on the basis of attenuation coefficients of electromagnetic coefficients of fault generated electromagnetic wavesHITACHI LTD·Filed 1991·Granted Oct 26, 1993·25 cites·32 claims
- 2865US5173330APatterning composition and method for patterning on a substrateMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Dec 22, 1992·35 cites·2 claims
- 2964USD913759SPrecut trimmer line for string trimmerSANYO TEGUSU CO LTD·Filed 2019·Granted Mar 23, 2021·1 cites·1 claims
- 3063US11510363B2Mower cord and manufacturing method for mower cordSANYO TEGUSU CO LTD·Filed 2020·Granted Nov 29, 2022·0 cites·6 claims
- 3163US4829256AInsulation testing device for gas insulated apparatusHITACHI LTD·Filed 1987·Granted May 9, 1989·18 cites·5 claims
- 3261US6755882B2Metal-graphite brushTRIS INC·Filed 2002·Granted Jun 29, 2004·12 cites·6 claims
- 3361US6036031ASubstrate cassette and side rail thereforFiled 1998·Granted Mar 14, 2000·25 cites·37 claims
- 3461US5325344AMagneto-optical recording and reproducing device having integrally formed recording and reproducing magnetic headsSHARP KK·Filed 1993·Granted Jun 28, 1994·11 cites·10 claims
- 3560US8294309B2Electrical rotating machineIZUMI MITSUAKI·Filed 2010·Granted Oct 23, 2012·2 cites·5 claims
- 3660US5214636AOptical recording element having a plurality of thin film filtering layers and optical recording element having an electrically conductive layerSHARP KK·Filed 1989·Granted May 25, 1993·11 cites·26 claims
- 3759US2005159896A1Apparatus and method for analyzing dataFiled 2003·Application pending·0 cites
- 3858US5187703AMagneto-optical multilayer recording disk and method of reproducing the sameSHARP KK·Filed 1991·Granted Feb 16, 1993·11 cites·10 claims
- 3957US5935460AMethod of performing high-efficiency machining by high-density radical reaction using a rotating electrode, device for performing the method and the rotating electrode used thereforJAPAN SCIENCE & TECH CORP·Filed 1997·Granted Aug 10, 1999·30 cites·20 claims
- 4056US5438561AMethod for recording and reproducing information using an optical memorySHARP KK·Filed 1994·Granted Aug 1, 1995·10 cites·9 claims
- 4156US5293280AMagnetic recording and reproduction apparatus for data processing unit and magnetic tape for use in such apparatusSHARP KK·Filed 1991·Granted Mar 8, 1994·11 cites·16 claims
- 4254US4564721AGas-insulated electrical apparatus with electret for captivating conductive particles and method of removing such particles during assembly thereofHITACHI LTD·Filed 1985·Granted Jan 14, 1986·16 cites·15 claims
- 4352US9166461B2Automotive alternator having a heat dissipating plateISHIKAWA TOSHIO·Filed 2012·Granted Oct 20, 2015·1 cites·12 claims
- 4452US6204583B1Centerpiece structure of brush-less motor and method of manufacturing brush-less motorASMO CO LTD·Filed 1999·Granted Mar 20, 2001·17 cites·7 claims
- 4551US11735968B2Rotary electric machine and vehicle provided with the sameHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2020·Granted Aug 22, 2023·0 cites·5 claims
- 4651US5877672AResistor and resistor manufacturing methodASMO CO LTD·Filed 1997·Granted Mar 2, 1999·10 cites·20 claims
- 4749US6063997AGas insulated electric apparatusHITACHI LTD·Filed 1994·Granted May 16, 2000·14 cites·18 claims
- 4849USD424015SCar chargerPHILIP MORRIS INC·Filed 1999·Granted May 2, 2000·6 cites·1 claims
- 4948USD444273SCleanerPHILIP MORRIS INC·Filed 2000·Granted Jun 26, 2001·6 cites·1 claims
- 5047US2010155522A1Automatic film winding device, sliting and winding system, and method of producing rolled filmARIMITSU KEI·Filed 2007·Application pending·0 cites
Showing the top 50 of 70 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →