Inventor · disambiguated record
Yukio Fukui
Also filed as: FUKUI YUKIO
49 granted patents·6 pending applications·981 citations·filing 1977–2021
99Inventor score
Top patents by PatentIndex Score
55 records- 0198US4866688AComposite tracking servo system for optical disc apparatus with track offset correctionHITACHI LTD·Filed 1986·Granted Sep 12, 1989·111 cites·20 claims
- 0297US10216278B2Haptic information presentation system and methodAIST·Filed 2016·Granted Feb 26, 2019·29 cites·44 claims
- 0396US9135791B2Haptic information presentation system and methodNAT INST OF ADVANCED IND SCIEN·Filed 2013·Granted Sep 15, 2015·21 cites·48 claims
- 0491US5555334AOptical transmission and receiving module and optical communication system using the sameHITACHI LTD·Filed 1994·Granted Sep 10, 1996·121 cites·22 claims
- 0590US9142104B2Haptic information presentation system and methodNAT INST OF ADVANCED IND SCIEN·Filed 2013·Granted Sep 22, 2015·8 cites·26 claims
- 0689US11385723B2Haptic information presentation system and methodAIST·Filed 2021·Granted Jul 12, 2022·2 cites·17 claims
- 0789US10416767B2Haptic information presentation system and methodAIST·Filed 2016·Granted Sep 17, 2019·6 cites·13 claims
- 0889US6400664B1Optical head including electrical circuit which produces focus error signal and tracking error signal unaffected by variations in intensity distributions of reflected light beamsHITACHI LTD·Filed 1999·Granted Jun 4, 2002·48 cites·6 claims
- 0988US5276670APhase change optical disk and method for using the sameHITACHI LTD·Filed 1990·Granted Jan 4, 1994·48 cites·5 claims
- 1087US11287888B2Haptic information presentation system and methodAIST·Filed 2018·Granted Mar 29, 2022·3 cites·40 claims
- 1186US6125087AOptical pickup for optical disk apparatusHITACHI LTD·Filed 1997·Granted Sep 26, 2000·50 cites·6 claims
- 1285US6340555B1Information recording medium and information recording and reproducing apparatus using the sameHITACHI LTD·Filed 2000·Granted Jan 22, 2002·17 cites·24 claims
- 1385US4768183AOptical reproducing apparatusHITACHI LTD·Filed 1987·Granted Aug 30, 1988·31 cites·7 claims
- 1484US9041520B2Haptic information presentation system and methodNAKAMURA NORIO·Filed 2010·Granted May 26, 2015·5 cites·29 claims
- 1583US4783776AMethod of recording and reproducing digital information and apparatus thereforHITACHI LTD·Filed 1986·Granted Nov 8, 1988·30 cites·6 claims
- 1682US9171437B2Haptic information presentation system and methodNAT INST OF ADVANCED IND SCIEN·Filed 2013·Granted Oct 27, 2015·6 cites·49 claims
- 1782US6721242B2Optical detector having three light receiving areasHITACHI LTD·Filed 2002·Granted Apr 13, 2004·14 cites·18 claims
- 1881US7003371B2Apparatus for processing electronic drawing dataAMADA CO LTD·Filed 2001·Granted Feb 21, 2006·24 cites·18 claims
- 1979US6383595B1Information recording mediumHITACHI LTD·Filed 1999·Granted May 7, 2002·33 cites·24 claims
- 2079US5541909AOptical disc with phase pits and a reproducing apparatus for data recorded on the optical discHITACHI LTD·Filed 1993·Granted Jul 30, 1996·27 cites·15 claims
- 2179US4580255AServo circuit for a signal reproducing apparatusHITACHI LTD·Filed 1983·Granted Apr 1, 1986·21 cites·12 claims
- 2278US6507009B1Optical detector, signal processing circuit and optical information reproduction apparatus thereofHITACHI LTD·Filed 1999·Granted Jan 14, 2003·27 cites·1 claims
- 2377US10936074B2Haptic information presentation system and methodAIST·Filed 2016·Granted Mar 2, 2021·2 cites·18 claims
- 2476US6934228B2Optical headHITACHI LTD·Filed 2004·Granted Aug 23, 2005·8 cites·3 claims
- 2575US9495804B2Haptic information presentation system and methodNAT INST ADVANCED IND SCIENCE & TECH·Filed 2015·Granted Nov 15, 2016·1 cites·14 claims
- 2675US6728173B2Information reproducing method which reproduces plural components of a focus error signal and a tracking error signal from plural detection regions of plural reflected light beamsHITACHI LTD·Filed 2002·Granted Apr 27, 2004·8 cites·3 claims
- 2774US9495803B2Haptic information presentation system and methodNAT INST ADVANCED IND SCIENCE & TECH·Filed 2015·Granted Nov 15, 2016·1 cites·19 claims
- 2874US5107482AOptical information recording method and apparatus and recording medium used thereforHITACHI LTD·Filed 1989·Granted Apr 21, 1992·20 cites·6 claims
- 2971US6132932AInformation recording medium and information recording and reproducing apparatus using the sameHITACHI LTD·Filed 1997·Granted Oct 17, 2000·18 cites·5 claims
- 3069US5699341AOptical disk apparatus and optical head thereofHITACHI LTD·Filed 1996·Granted Dec 16, 1997·19 cites·22 claims
- 3169US4689778AOptical disc recording/reproducing apparatus with recorded track-section detectorHITACHI LTD·Filed 1985·Granted Aug 25, 1987·17 cites·6 claims
- 3269US4645712AInformation recording mediumHITACHI LTD·Filed 1985·Granted Feb 24, 1987·30 cites·7 claims
- 3367US5872761AOptical disk apparatus and optical head thereofHITACHI LTD·Filed 1997·Granted Feb 16, 1999·17 cites·25 claims
- 3467US4525823AOptical tracking systemHITACHI LTD·Filed 1982·Granted Jun 25, 1985·13 cites·12 claims
- 3563US6388976B1Compact optical head including two light emitters having parallel optical axesHITACHI LTD·Filed 2000·Granted May 14, 2002·4 cites·23 claims
- 3663US4805040ADrop-out correction circuit in an apparatus for correcting time base error with inhibition of time-base information during dropoutHITACHI LTD·Filed 1987·Granted Feb 14, 1989·18 cites·3 claims
- 3760US5412770ACad free-form reshaping methodAGENCY IND SCIENCE TECHN·Filed 1993·Granted May 2, 1995·32 cites·3 claims
- 3859US10936072B2Haptic information presentation system and methodAIST·Filed 2019·Granted Mar 2, 2021·0 cites·16 claims
- 3955US7962371B2Commodity presenting method and system thereforAMADA CO LTD·Filed 2001·Granted Jun 14, 2011·0 cites·20 claims
- 4055US4245143AMicrowave ovenHITACHI HEATING APPL·Filed 1979·Granted Jan 13, 1981·13 cites·13 claims
- 4153US2007020598A1Manikin and method of manufacturing the sameNAT INST OF ADVANCED IND SCIEN·Filed 2004·Application pending·0 cites
- 4252US6069862ACompact optical head including two light emitters having parallel optical axesHITACHI LTD·Filed 1997·Granted May 30, 2000·9 cites·15 claims
- 4351US2006025882A1Marketing supporting systemAMADA CO LTD·Filed 2005·Application pending·0 cites
- 4451US2006031146A1Marketing supporting systemAMADA CO LTD·Filed 2005·Application pending·0 cites
- 4546US5327407ATracking control apparatus for generating sawtooth tracking control signal from sinusoidal tracking error signalHITACHI LTD·Filed 1992·Granted Jul 5, 1994·6 cites·10 claims
- 4643US2002015914A1Information recording medium and information recording and reproducing apparatus using the sameFiled 2001·Application pending·0 cites
- 4741US2007091063A1Tactile force sense information display system and methodNAKAMURA NORIO·Filed 2004·Application pending·0 cites
- 4840US2004052509A1Optical pick-up device and optical disk apparatusHITACHI LTD·Filed 2003·Application pending·0 cites
- 4939US7653565B2Processing program edition conferencing method and systemAMADA CO LTD·Filed 2004·Granted Jan 26, 2010·0 cites·17 claims
- 5034US5754433AComputer-aided design systemAGENCY IND SCIENCE TECHN·Filed 1996·Granted May 19, 1998·7 cites·3 claims
Showing the top 50 of 55 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →