Inventor · disambiguated record
Yukio Okamoto
Also filed as: OKAMOTO YUKIO
53 granted patents·3 pending applications·1,180 citations·filing 1974–2014
99Inventor score
Files withHITACHI LTD23KONISHIROKU PHOTO IND19MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4KONICA MINOLTA BUSINESS TECH3JAPAN AE POWER SYSTEMS CORP1
Top patents by PatentIndex Score
56 records- 0197US4531825AElectrostatic reproducing apparatus having an intermediate toner image transfer memberKONISHIROKU PHOTO IND·Filed 1982·Granted Jul 30, 1985·62 cites·9 claims
- 0296US5049739APlasma ion source mass spectrometer for trace elementsHITACHI LTD·Filed 1989·Granted Sep 17, 1991·72 cites·18 claims
- 0396US4908492AMicrowave plasma production apparatusHITACHI LTD·Filed 1989·Granted Mar 13, 1990·128 cites·5 claims
- 0495US4588279ACleaning roller intermediate transfer memberKONISHIROKU PHOTO IND·Filed 1983·Granted May 13, 1986·49 cites·4 claims
- 0595US4518976ARecording apparatusKONISHIROKU PHOTO IND·Filed 1983·Granted May 21, 1985·49 cites·13 claims
- 0694US4585319ARecording apparatus for electrostatic imagesKONISHIROKU PHOTO IND·Filed 1983·Granted Apr 29, 1986·42 cites·6 claims
- 0791US4963735APlasma source mass spectrometerHITACHI LTD·Filed 1989·Granted Oct 16, 1990·48 cites·14 claims
- 0889US4645327ARecording apparatus having water vapor removing or preventing meansKONISHIROKU PHOTO IND·Filed 1984·Granted Feb 24, 1987·32 cites·10 claims
- 0985US5107285AImage forming apparatus with improved image retainer cleaning meansKONISHIROKU PHOTO IND·Filed 1990·Granted Apr 21, 1992·30 cites·17 claims
- 1085US5086255AMicrowave induced plasma sourceHITACHI LTD·Filed 1990·Granted Feb 4, 1992·45 cites·6 claims
- 1184US7209570B2SpeakerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Apr 24, 2007·25 cites·90 claims
- 1284US5162849AImage forming apparatus having a developer deterioration detecting deviceKONISHIROKU PHOTO IND·Filed 1991·Granted Nov 10, 1992·32 cites·13 claims
- 1383US7767987B2Electron beam irradiation method, electron beam irradiation apparatus, and electron beam irradiation apparatus for open-mouthed containerJAPAN AE POWER SYSTEMS CORP·Filed 2006·Granted Aug 3, 2010·14 cites·17 claims
- 1483US4932356AToner control deviceKONISHIROKU PHOTO IND·Filed 1988·Granted Jun 12, 1990·26 cites·5 claims
- 1582US4692666AGas-discharge display deviceHITACHI LTD·Filed 1984·Granted Sep 8, 1987·22 cites·6 claims
- 1681US5063329AMicrowave plasma source apparatusHITACHI LTD·Filed 1990·Granted Nov 5, 1991·36 cites·48 claims
- 1780US4933650AMicrowave plasma production apparatusHITACHI LTD·Filed 1989·Granted Jun 12, 1990·37 cites·7 claims
- 1879US4439462AMethod for transferring and fixing a toner imageKONISHIROKU PHOTO IND·Filed 1982·Granted Mar 27, 1984·20 cites·4 claims
- 1977US5054419AImage forming apparatusKONISHIROKU PHOTO IND·Filed 1990·Granted Oct 8, 1991·23 cites·31 claims
- 2076US7443996B2LoudspeakerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Oct 28, 2008·5 cites·23 claims
- 2176US7324659B2Speaker and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jan 29, 2008·19 cites·25 claims
- 2275US7389082B2Method and apparatus for forming an image having uniform glossinessKONICA MINOLTA BUSINESS TECH·Filed 2005·Granted Jun 17, 2008·4 cites·22 claims
- 2374US4066929AElectron-acceleration type flatgas-discharge panel with internal memory functions and method of driving for sameHITACHI LTD·Filed 1976·Granted Jan 3, 1978·15 cites·18 claims
- 2472US4950642AMethod for fabricating superconducting oxide thin films by activated reactive evaporationHITACHI LTD·Filed 1988·Granted Aug 21, 1990·24 cites·4 claims
- 2572US4486089AMagnetic brush developing meansKONISHIROKU PHOTO IND·Filed 1982·Granted Dec 4, 1984·15 cites·4 claims
- 2671US4902099ATrace element spectrometry with plasma sourceHITACHI LTD·Filed 1988·Granted Feb 20, 1990·28 cites·6 claims
- 2771US3934172AFlat discharge panel using D.C. discharge, and method of driving the sameHITACHI LTD·Filed 1974·Granted Jan 20, 1976·11 cites·10 claims
- 2869US5185523AMass spectrometer for analyzing ultra trace element using plasma ion sourceHITACHI LTD·Filed 1992·Granted Feb 9, 1993·22 cites·10 claims
- 2968US5252827AMethod and apparatus for analysis of gases using plasmaHITACHI LTD·Filed 1991·Granted Oct 12, 1993·21 cites·27 claims
- 3068US5148021AMass spectrometer using plasma ion sourceHITACHI LTD·Filed 1990·Granted Sep 15, 1992·22 cites·14 claims
- 3165US5140375AImage forming apparatusKONISHIROKU PHOTO IND·Filed 1991·Granted Aug 18, 1992·17 cites·9 claims
- 3265US4727287AGas discharge display panel and cathode used thereinHITACHI LTD·Filed 1986·Granted Feb 23, 1988·12 cites·13 claims
- 3364US4566006AGas discharge display apparatusHITACHI LTD·Filed 1983·Granted Jan 21, 1986·11 cites·22 claims
- 3463US5202562AHigh sensitive element analyzing method and apparatus of the sameHITACHI LTD·Filed 1991·Granted Apr 13, 1993·16 cites·15 claims
- 3562US5353103AImage recording apparatus with toner concentration detecting circuitKONISHIROKU PHOTO IND·Filed 1993·Granted Oct 4, 1994·13 cites·7 claims
- 3662US4333040AGas discharge display deviceHITACHI LTD·Filed 1979·Granted Jun 1, 1982·9 cites·6 claims
- 3761US8041069B2LoudspeakerPANASONIC CORP·Filed 2008·Granted Oct 18, 2011·1 cites·23 claims
- 3861US5316585AMethod for fabricating superconducting materials and superconductive thin filmsHITACHI LTD·Filed 1990·Granted May 31, 1994·18 cites·15 claims
- 3961US4725255AGas discharge display deviceSHINADA SHINICHI·Filed 1986·Granted Feb 16, 1988·13 cites·13 claims
- 4059US5395895AResin composition and a molded article utilizing itSHOWA DENKO KK·Filed 1992·Granted Mar 7, 1995·12 cites·11 claims
- 4155US5687054ACorona charging apparatusKONISHIROKU PHOTO IND·Filed 1996·Granted Nov 11, 1997·11 cites·7 claims
- 4253US4476466ADriving method of gas-discharge display panelHITACHI LTD·Filed 1981·Granted Oct 9, 1984·14 cites·11 claims
- 4351US4585326ADeveloping electrophotographic image using magnets and magnetic materialKONISHIROKU PHOTO IND·Filed 1984·Granted Apr 29, 1986·7 cites·6 claims
- 4449US5115280AResidual toner cleaning apparatus for color image forming deviceKONISHIROKU PHOTO IND·Filed 1991·Granted May 19, 1992·8 cites·4 claims
- 4546US5220416AColor image processing apparatusKONISHIROKU PHOTO IND·Filed 1990·Granted Jun 15, 1993·10 cites·8 claims
- 4646US4860063AMethod of controlling developer toner density of developing deviceKONISHIROKU PHOTO IND·Filed 1987·Granted Aug 22, 1989·6 cites·8 claims
- 4742US7359668B2Image fixing deviceKONICA MINOLTA BUSINESS TECH·Filed 2005·Granted Apr 15, 2008·0 cites·8 claims
- 4841US5130537APlasma analyzer for trace element analysisHITACHI LTD·Filed 1991·Granted Jul 14, 1992·9 cites·10 claims
- 4940USD535289SSpeakerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jan 16, 2007·5 cites·1 claims
- 5038US2006275677A1Imaging forming method, printed product and image forming mediumOKAMOTO YUKIO·Filed 2006·Application pending·0 cites
Showing the top 50 of 56 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →