Inventor · disambiguated record
Takeshi Sekiguchi
Also filed as: SEKIGUCHI TAKESHI
67 granted patents·18 pending applications·1,169 citations·filing 1974–2023
99Inventor score
Files withCANON KK40SUMITOMO ELECTRIC INDUSTRIES18DAINIPPON PRINTING CO LTD7SEKIGUCHI TAKESHI6FUJITA SHINSUKE2
Top patents by PatentIndex Score
85 records- 0197US9857711B2TonerCANON KK·Filed 2016·Granted Jan 2, 2018·34 cites·16 claims
- 0294US5035087ASurface grinding machineSUMITOMO ELECTRIC INDUSTRIES·Filed 1987·Granted Jul 30, 1991·86 cites·1 claims
- 0393US4904012ASuction deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted Feb 27, 1990·130 cites·5 claims
- 0491US5742480AOptical module circuit board having flexible structureSUMITOMO ELECTRIC INDUSTRIES·Filed 1995·Granted Apr 21, 1998·131 cites·13 claims
- 0590US9170513B2Yellow tonerCANON KK·Filed 2014·Granted Oct 27, 2015·5 cites·4 claims
- 0689US9418653B2Operation assisting method and operation assisting devicePANASONIC IP MAN CO LTD·Filed 2015·Granted Aug 16, 2016·11 cites·13 claims
- 0789US9323168B2Yellow toner and process for producing the yellow tonerCANON KK·Filed 2013·Granted Apr 26, 2016·5 cites·3 claims
- 0889US5596665AOptical module having structure for defining fixing position of sleeveSUMITOMO ELECTRIC INDUSTRIES·Filed 1995·Granted Jan 21, 1997·102 cites·16 claims
- 0988US9580576B2Pigment dispersion and yellow resist composition for color filter and ink composition containing the pigment dispersionCANON KK·Filed 2013·Granted Feb 28, 2017·5 cites·4 claims
- 1087US11597787B2Particle and method of producing the particleCANON KK·Filed 2020·Granted Mar 7, 2023·1 cites·8 claims
- 1185US6774470B2Non-contact data carrier and method of fabricating the sameDAINIPPON PRINTING CO LTD·Filed 2002·Granted Aug 10, 2004·34 cites·2 claims
- 1284US9910375B2Yellow toner and method for producing the sameCANON KK·Filed 2016·Granted Mar 6, 2018·2 cites·10 claims
- 1383US8628863B2Indenopyrene compound and organic light-emitting device using the compoundSEKIGUCHI TAKESHI·Filed 2009·Granted Jan 14, 2014·5 cites·7 claims
- 1483US4589015AColor television camera with bias light device featuring reduced color shadingCANON KK·Filed 1983·Granted May 13, 1986·33 cites·8 claims
- 1582US8952367B2Thioxanthone compound and organic light emitting element having the sameKAMATANI JUN·Filed 2011·Granted Feb 10, 2015·4 cites·12 claims
- 1682US5712504APin type light-receiving device, opto electronic conversion circuit, and opto-electronic conversion moduleSUMITOMO ELECTRIC INDUSTRIES·Filed 1996·Granted Jan 27, 1998·72 cites·12 claims
- 1782US4907393APackaging method and apparatusOMORI MACHINERY·Filed 1988·Granted Mar 13, 1990·37 cites·20 claims
- 1879US9069273B2Yellow toner and method for producing the yellow tonerCANON KK·Filed 2014·Granted Jun 30, 2015·2 cites·10 claims
- 1979US6837916B2Smelting reduction methodNIPPON KOKAN KK·Filed 2001·Granted Jan 4, 2005·18 cites·15 claims
- 2078US4812911AAdapter with built-in shutterCANON KK·Filed 1987·Granted Mar 14, 1989·16 cites·16 claims
- 2176US5227203AIon-plating method and apparatus thereforNIPPON KOKAN KK·Filed 1992·Granted Jul 13, 1993·41 cites·31 claims
- 2275US4857997AColor television camera incorporating a color resolving prism systemCANON KK·Filed 1988·Granted Aug 15, 1989·28 cites·5 claims
- 2374US9811014B2Yellow toner and production method thereforCANON KK·Filed 2015·Granted Nov 7, 2017·1 cites·5 claims
- 2474US9382426B2Water-insoluble coloring compound, ink, thermal transfer recording sheet, and color filter resist compositionCANON KK·Filed 2013·Granted Jul 5, 2016·1 cites·5 claims
- 2574US6977423B2Light-receiving assemblySUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Granted Dec 20, 2005·6 cites·3 claims
- 2673US3970366AHighly variable magnification zoom lens system having a diaphragm with its apertures diameter varied in relation with zoomingCANON KK·Filed 1974·Granted Jul 20, 1976·27 cites·6 claims
- 2772US9658553B2TonerCANON KK·Filed 2014·Granted May 23, 2017·1 cites·8 claims
- 2872US4401006AMusic box spring winding mechanismSEKIGUCHI TAKESHI·Filed 1981·Granted Aug 30, 1983·24 cites·3 claims
- 2971US9388313B2Water-insoluble coloring compound, ink, thermal transfer recording sheet, and color filter resist compositionCANON KK·Filed 2013·Granted Jul 12, 2016·1 cites·8 claims
- 3070US4957358AAntifogging film and optical element using the sameCANON KK·Filed 1989·Granted Sep 18, 1990·28 cites·6 claims
- 3169US4794417APhotographing apparatusCANON KK·Filed 1986·Granted Dec 27, 1988·24 cites·11 claims
- 3269US4237475ATelevision camera with test patternCANON KK·Filed 1979·Granted Dec 2, 1980·15 cites·9 claims
- 3369US4033674AZoom lens having a wide magnification variation rangeCANON KK·Filed 1974·Granted Jul 5, 1977·23 cites·9 claims
- 3468US8246283B2Equipment and method for transporting red-hot cokeFUJITA SHINSUKE·Filed 2006·Granted Aug 21, 2012·2 cites·7 claims
- 3568US4084179AColor television cameraCANON KK·Filed 1976·Granted Apr 11, 1978·15 cites·15 claims
- 3667US11801703B2Heat sensitive transfer recording sheetCANON KK·Filed 2020·Granted Oct 31, 2023·0 cites·4 claims
- 3766US8765270B2Triazine compound and organic light emitting device using the sameSEKIGUCHI TAKESHI·Filed 2009·Granted Jul 1, 2014·2 cites·8 claims
- 3866US6900512B2Light-receiving moduleSUMITOMO ELECTRIC INDUSTRIES·Filed 2003·Granted May 31, 2005·12 cites·4 claims
- 3966US4236177ABeam splitting prism assembly with bias light sourceCANON KK·Filed 1979·Granted Nov 25, 1980·14 cites·1 claims
- 4063US4345271ATelevision cameraCANON KK·Filed 1980·Granted Aug 17, 1982·14 cites·12 claims
- 4163US2022163535A1Particles, affinity particles having ligand for target substance, in vitro diagnostic reagent and kit that include same, and method for detecting target substanceCANON KK·Filed 2022·Application pending·0 cites
- 4262US6806547B2Light-receiving moduleSUMITOMO ELECTRIC INDUSTRIES·Filed 2003·Granted Oct 19, 2004·11 cites·3 claims
- 4362US4262305ATV CameraCANON KK·Filed 1979·Granted Apr 14, 1981·12 cites·1 claims
- 4460US6962627B2Device for providing a pressurized solution to an applying deviceDAINIPPON PRINTING CO LTD·Filed 2001·Granted Nov 8, 2005·10 cites·2 claims
- 4560US2023403873A1Organic compound and organic light-emitting deviceCANON KK·Filed 2023·Application pending·0 cites
- 4659US2014249900A1Affiliate system, affiliate method, and serverYAHOO JAPAN CORP·Filed 2014·Application pending·0 cites
- 4758US8974923B2Organic compound and organic light-emitting device having the sameMUTA HAJIME·Filed 2011·Granted Mar 10, 2015·1 cites·8 claims
- 4858US8173275B2Azaindenochrysene derivative and organic light-emitting deviceOHRUI HIROKI·Filed 2009·Granted May 8, 2012·0 cites·9 claims
- 4958USD396210SOptical receiver/transmitter moduleSUMITOMO ELECTRIC INDUSTRIES·Filed 1996·Granted Jul 21, 1998·10 cites·1 claims
- 5058US4955683AApparatus and a method for coupling an optically operative device with an optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted Sep 11, 1990·18 cites·19 claims
Showing the top 50 of 85 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →