Inventor · disambiguated record
Takehiro Nakagawa
Also filed as: NAKAGAWA TAKEHIRO
35 granted patents·19 pending applications·1,419 citations·filing 1989–2023
98Inventor score
Top patents by PatentIndex Score
54 records- 0193US8474825B2Sealing deviceNAKAGAWA TAKEHIRO·Filed 2009·Granted Jul 2, 2013·22 cites·2 claims
- 0293US5269289ACavity insert device using fuzzy theoryOLYMPUS OPTICAL CO·Filed 1991·Granted Dec 14, 1993·162 cites·87 claims
- 0392US5374953AElectronic endoscope apparatus with signal validity monitorOLYMPUS OPTICAL CO·Filed 1993·Granted Dec 20, 1994·136 cites·4 claims
- 0492US4967269AEndoscope automatic light control apparatus and endoscope apparatus making use of the sameOLYMPUS OPTICAL CO·Filed 1989·Granted Oct 30, 1990·83 cites·11 claims
- 0592US4959710AElectronic endoscope whereby the position of the insertable part can be known by a transmitted light outside a bodyOLYMPUS OPTICAL CO·Filed 1989·Granted Sep 25, 1990·89 cites·27 claims
- 0688US5592216AEndoscopic apparatus capable of storing image information for a plurality of framesOLYMPUS OPTICAL CO·Filed 1994·Granted Jan 7, 1997·85 cites·19 claims
- 0787US8573601B2Sealing deviceNAKAGAWA TAKEHIRO·Filed 2008·Granted Nov 5, 2013·10 cites·2 claims
- 0885US9618117B2Oil sealNOK CORP·Filed 2013·Granted Apr 11, 2017·5 cites·2 claims
- 0985US8189041B2Endoscope signal processing apparatusKONISHI JUN·Filed 2007·Granted May 29, 2012·65 cites·23 claims
- 1085US5113254AElectronic endoscope apparatus outputting ternary drive signalOLYMPUS OPTICAL CO·Filed 1990·Granted May 12, 1992·71 cites·37 claims
- 1183US10208861B2Sealing deviceNOK CORP·Filed 2015·Granted Feb 19, 2019·5 cites·4 claims
- 1283USRE34504EElectronic endoscope system provided with a means of imaging frozen pictures having few picture image smearsOLYMPUS OPTICAL CO·Filed 1990·Granted Jan 11, 1994·55 cites·51 claims
- 1381USD802104SSealNOK CORP·Filed 2016·Granted Nov 7, 2017·23 cites·1 claims
- 1481US7806412B2Lip type end face sealing deviceNOK CORP·Filed 2005·Granted Oct 5, 2010·8 cites·7 claims
- 1577US11287042B2Sealing apparatusNOK CORP·Filed 2019·Granted Mar 29, 2022·2 cites·32 claims
- 1677US10371260B2Oil sealNOK CORP·Filed 2013·Granted Aug 6, 2019·3 cites·10 claims
- 1777US8714562B2Lip type end face sealing deviceNAKAGAWA TAKEHIRO·Filed 2010·Granted May 6, 2014·3 cites·4 claims
- 1877US5408263AElectronic endoscope apparatusOLYMPUS OPTICAL CO·Filed 1993·Granted Apr 18, 1995·203 cites·76 claims
- 1976US8714561B2Oil sealYAMANAKA SATOSHI·Filed 2011·Granted May 6, 2014·2 cites·18 claims
- 2076US8220803B2Oil sealYAMANAKA SATOSHI·Filed 2011·Granted Jul 17, 2012·2 cites·10 claims
- 2176US5609561AElectronic type endoscope in which image pickup unit is dismounted to execute disinfection/sterilization processingOLYMPUS OPTICAL CO·Filed 1994·Granted Mar 11, 1997·198 cites·16 claims
- 2276US5243666AStatic-image signal generation apparatus using fuzzy theoryOLYMPUS OPTICAL CO·Filed 1990·Granted Sep 7, 1993·41 cites·19 claims
- 2374US8136818B2Oil sealYAMANAKA SATOSHI·Filed 2007·Granted Mar 20, 2012·4 cites·2 claims
- 2472US4979035AElectronic endoscope apparatus with CCD output circuit of positive polarityOLYMPUS OPTICAL CO·Filed 1989·Granted Dec 18, 1990·26 cites·11 claims
- 2570US4933757AElectronic endoscope apparatus provided with a movement detecting meansOLYMPUS OPTICAL CO·Filed 1989·Granted Jun 12, 1990·23 cites·26 claims
- 2668US5164824AImage freezing signal-processing apparatusOLYMPUS OPTICAL CO·Filed 1991·Granted Nov 17, 1992·32 cites·24 claims
- 2767US10428947B2Sealing deviceNOK CORP·Filed 2015·Granted Oct 1, 2019·1 cites·4 claims
- 2866US8276917B2Sealing deviceNAKAGAWA TAKEHIRO·Filed 2008·Granted Oct 2, 2012·3 cites·4 claims
- 2965US8537209B2Endoscope apparatusIWASAKI TOMOKI·Filed 2005·Granted Sep 17, 2013·5 cites·2 claims
- 3060US2025114956A1Blade unit and electric razorPANASONIC IP MAN CO LTD·Filed 2023·Application pending·0 cites
- 3160US2025144412A1Beauty device and electric razorPANASONIC IP MAN CO LTD·Filed 2023·Application pending·0 cites
- 3260US2025236031A1Slit blade block and electric razorPANASONIC IP MAN CO LTD·Filed 2023·Application pending·0 cites
- 3358US2011006485A1Sealing deviceNOK CORP·Filed 2009·Application pending·0 cites
- 3457US4901143AElectronic endoscope system provided with a means of imaging frozen pictures having few picture image smearsOLYMPUS OPTICAL CO·Filed 1989·Granted Feb 13, 1990·45 cites·51 claims
- 3556US2013087978A1Sealing deviceNOK CORP·Filed 2012·Application pending·0 cites
- 3654US2011068542A1Sealing deviceNOK CORP·Filed 2009·Application pending·0 cites
- 3753US2011095486A1Oil sealNOK CORP·Filed 2008·Application pending·0 cites
- 3852USD865134SSealNOK CORP·Filed 2017·Granted Oct 29, 2019·5 cites·1 claims
- 3952US2010052266A1Sealing deviceNOK CORP·Filed 2008·Application pending·0 cites
- 4051US2015115543A1Oil SealNOK CORP·Filed 2014·Application pending·0 cites
- 4151US2010245007A1Pulsar ring for magnetic rotary encoderNOK CORP·Filed 2010·Application pending·0 cites
- 4251US2012007319A1Sealing deviceMIURA DAISUKE·Filed 2008·Application pending·0 cites
- 4349US2010244388A1Sealing deviceNOK CORP·Filed 2008·Application pending·0 cites
- 4448US10711899B2Seal deviceNOK CORP·Filed 2016·Granted Jul 14, 2020·0 cites·7 claims
- 4548US2020124178A1Sealing apparatusNOK CORP·Filed 2019·Application pending·0 cites
- 4647US2020011423A1Sealing apparatusNOK CORP·Filed 2019·Application pending·0 cites
- 4746US7951074B2Endoscope deviceOLYMPUS CORP·Filed 2007·Granted May 31, 2011·0 cites·12 claims
- 4846US2011175632A1Method for reducing degree of activation of cells, and apparatus for the methodPANASONIC ELEC WORKS CO LTD·Filed 2009·Application pending·0 cites
- 4945US2011022128A1Hair-growth device and hair-growth methodNAKAGAWA TAKEHIRO·Filed 2009·Application pending·0 cites
- 5044US2016184604A1Light emitting device for body hairPANASONIC IP MAN CO LTD·Filed 2014·Application pending·0 cites
Showing the top 50 of 54 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →