Inventor · disambiguated record
Yutaka Takahashi
Also filed as: NISHIJO MASARU · TAKAHASHI YUTAKA
197 granted patents·18 pending applications·5,233 citations·filing 1973–2024
99Inventor score
Files withOLYMPUS OPTICAL CO20RICOH KK20TOKYO ELECTRON LTD20MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17FUJI PHOTO FILM CO LTD10
Top patents by PatentIndex Score
215 records- 0197US7272354B2Cleaning unit and image forming apparatus having multiple cleaning bladesRICOH KK·Filed 2006·Granted Sep 18, 2007·27 cites·46 claims
- 0297US5001556AEndoscope apparatus for processing a picture image of an object based on a selected wavelength rangeOLYMPUS OPTICAL CO·Filed 1990·Granted Mar 19, 1991·283 cites·35 claims
- 0396US4727418AImage processing apparatusOLYMPUS OPTICAL CO·Filed 1986·Granted Feb 23, 1988·178 cites·12 claims
- 0496US4646724AEndoscopic photographing apparatusOLYMPUS OPTICAL CO·Filed 1986·Granted Mar 3, 1987·153 cites·19 claims
- 0595US7273688B2Image forming method and image forming apparatus for sameRICOH KK·Filed 2006·Granted Sep 25, 2007·15 cites·8 claims
- 0695US6573846B1Method and apparatus for variable length decoding and encoding of video streamsAPPLE COMPUTER·Filed 2001·Granted Jun 3, 2003·124 cites·124 claims
- 0795US5259100AMilling tool for turret punch pressAMADA ENG & SERVICE·Filed 1992·Granted Nov 9, 1993·64 cites·46 claims
- 0895US4561429AFlashlight control apparatus for endoscopeOLYMPUS OPTICAL CO·Filed 1983·Granted Dec 31, 1985·38 cites·4 claims
- 0994US8211610B2Carrier for use in developer developing electrostatic image, developer using the carrier, and image forming method and apparatus and process cartridge using the developerYAMAGUCHI KIMITOSHI·Filed 2010·Granted Jul 3, 2012·15 cites·12 claims
- 1093US9176425B2Developer replenishing device to transport developer from developer container, image forming apparatus including same, and conveyance device to transport powder or fluid from containerTAKAMI NOBUO·Filed 2014·Granted Nov 3, 2015·8 cites·15 claims
- 1193US7826786B2Image forming apparatus, lubricant applying device, transfer device, process cartridge, and tonerRICOH KK·Filed 2005·Granted Nov 2, 2010·17 cites·13 claims
- 1293US6887636B2Toner for two-component developer, image forming method and device for developing electrostatic latent imageRICOH KK·Filed 2002·Granted May 3, 2005·45 cites·38 claims
- 1393US5539891AData transfer control circuit with a sequencer circuit and control subcircuits and data control method for successively entering data into a memoryTEXAS INSTRUMENTS INC·Filed 1994·Granted Jul 23, 1996·61 cites·7 claims
- 1493US5269289ACavity insert device using fuzzy theoryOLYMPUS OPTICAL CO·Filed 1991·Granted Dec 14, 1993·162 cites·87 claims
- 1593US4977639AFloor detector for vacuum cleanersMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Dec 18, 1990·158 cites·8 claims
- 1692US10026606B2Method for depositing a silicon nitride filmTOKYO ELECTRON LTD·Filed 2017·Granted Jul 17, 2018·7 cites·10 claims
- 1792US7734200B2Lifetime management device and image forming systemRICOH KK·Filed 2006·Granted Jun 8, 2010·15 cites·19 claims
- 1892US7542712B2Lubricant applicator, and image forming apparatus and process cartridge using the lubricant applicator, and method for assembling the process cartridgeRICOH KK·Filed 2006·Granted Jun 2, 2009·15 cites·4 claims
- 1992US6934484B2Image-forming apparatus and image-forming methodRICOH KK·Filed 2003·Granted Aug 23, 2005·40 cites·30 claims
- 2092US4719508AEndoscopic photographing apparatusOLYMPUS OPTICAL CO·Filed 1986·Granted Jan 12, 1988·91 cites·8 claims
- 2191US7676164B2Lifetime management device and image forming systemRICOH KK·Filed 2006·Granted Mar 9, 2010·13 cites·7 claims
- 2291US7593652B2Image forming apparatus and image forming system that calculate operation amount of components thereofRICOH KK·Filed 2006·Granted Sep 22, 2009·13 cites·12 claims
- 2391US6707265B2Rotor angle detecting apparatus for DC brushless motorsHONDA MOTOR CO LTD·Filed 2002·Granted Mar 16, 2004·44 cites·9 claims
- 2491US4867137AElectronic endoscopeOLYMPUS OPTICAL CO·Filed 1988·Granted Sep 19, 1989·71 cites·6 claims
- 2590US7689110B2Collapsible lens barrelPANASONIC CORP·Filed 2008·Granted Mar 30, 2010·19 cites·4 claims
- 2690US6899986B2Image forming method and toner for use in the methodRICOH KK·Filed 2002·Granted May 31, 2005·28 cites·22 claims
- 2790US5579353ADynamic clock mode switchTEXAS INSTRUMENTS INC·Filed 1995·Granted Nov 26, 1996·91 cites·9 claims
- 2890US4326452AFluid diverting assemblyMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1978·Granted Apr 27, 1982·50 cites·23 claims
- 2989US8564378B2Voltage-controlled oscillating circuit and crystal oscillatorTAKAHASHI YUTAKA·Filed 2012·Granted Oct 22, 2013·9 cites·9 claims
- 3089US7149465B2Cleaning unit, process cartridge, image forming apparatus, and tonerRICOH KK·Filed 2004·Granted Dec 12, 2006·26 cites·22 claims
- 3189US7110696B2Cleaning unit, process cartridge, and image forming apparatusRICOH KK·Filed 2003·Granted Sep 19, 2006·27 cites·47 claims
- 3289US6456444B1Lens barrelMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Sep 24, 2002·34 cites·18 claims
- 3388US8197066B2Image display apparatusNAGASHIMA KENJI·Filed 2008·Granted Jun 12, 2012·12 cites·13 claims
- 3488US7315723B2Method and apparatus for image forming capable of effectively transporting tonerRICOH KK·Filed 2005·Granted Jan 1, 2008·10 cites·91 claims
- 3588US6008482AMicrowave oven with induction steam generating apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Dec 28, 1999·89 cites·9 claims
- 3688US5273025AApparatus for detecting insertion condition of endoscopeOLYMPUS OPTICAL CO·Filed 1991·Granted Dec 28, 1993·421 cites·20 claims
- 3788US5222084AEcho canceler having adaptive digital filter unit associated with delta-sigma modulation circuitNEC CORP·Filed 1991·Granted Jun 22, 1993·102 cites·10 claims
- 3888US5215513ATool changing apparatus for a turret punch pressAMADA ENG & SERVICE·Filed 1991·Granted Jun 1, 1993·34 cites·11 claims
- 3987US7162187B2Image forming apparatus and image forming methodRICOH KK·Filed 2004·Granted Jan 9, 2007·25 cites·12 claims
- 4087US7125638B2Image forming method and image forming apparatus for sameRICOH KK·Filed 2004·Granted Oct 24, 2006·21 cites·31 claims
- 4187US6304152B1Digital-control Colpitts oscillator circuitNEC CORP·Filed 2000·Granted Oct 16, 2001·25 cites·8 claims
- 4287US5253647AInsertion position and orientation state pickup for endoscopeOLYMPUS OPTICAL CO·Filed 1991·Granted Oct 19, 1993·374 cites·18 claims
- 4387US4897966APolishing apparatusNIPPON SILICONE KK·Filed 1987·Granted Feb 6, 1990·40 cites·2 claims
- 4487US4563571AElectric water heating device with decreased mineral scale depositionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1982·Granted Jan 7, 1986·51 cites·12 claims
- 4586US10655029B2Inkjet ink and coloring compositionFUJITA TAKUYA·Filed 2017·Granted May 19, 2020·2 cites·5 claims
- 4686US10635043B2Powder container and image forming apparatusRICOH CO LTD·Filed 2019·Granted Apr 28, 2020·1 cites·19 claims
- 4786US10009271B2Routing method and network transmission apparatusFUJITSU LTD·Filed 2016·Granted Jun 26, 2018·6 cites·5 claims
- 4886US5750216ABag for bag-in-boxKIRIN BREWERY·Filed 1995·Granted May 12, 1998·69 cites·17 claims
- 4986US5145083ACap device for mouthpiece of container and methods of sealing mouthpiece portion of container and opening the sameKIRIN BREWERY·Filed 1990·Granted Sep 8, 1992·75 cites·10 claims
- 5086US5108833APorous structural unit and a method of preparing the sameMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Apr 28, 1992·39 cites·7 claims
Showing the top 50 of 215 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →