Inventor · disambiguated record
Koichi Yasuda
Also filed as: YASUDA KOICHI
40 granted patents·7 pending applications·887 citations·filing 1977–2023
98Inventor score
Top patents by PatentIndex Score
47 records- 0198US6246656B1Reduced thickness of a light transmissive layer for a high density optical discSONY CORP·Filed 1998·Granted Jun 12, 2001·199 cites·40 claims
- 0297US6511788B1Multi-layered optical discSONY CORP·Filed 2000·Granted Jan 28, 2003·86 cites·20 claims
- 0395US6221455B1Multi-layer optical disc and recording/reproducing apparatusSONY CORP·Filed 1999·Granted Apr 24, 2001·105 cites·11 claims
- 0492US5768221AMethod of and apparatus for initializing multi-layer optical recording mediumSONY CORP·Filed 1996·Granted Jun 16, 1998·86 cites·7 claims
- 0589US5972459AOptical recording medium and optical disk apparatusSONY CORP·Filed 1998·Granted Oct 26, 1999·63 cites·20 claims
- 0682US10085707B2Medical image information system, medical image information processing method, and programHITACHI LTD·Filed 2015·Granted Oct 2, 2018·5 cites·16 claims
- 0779US6574180B2Multilayer optical disk and method of initializing the sameSONY CORP·Filed 2001·Granted Jun 3, 2003·14 cites·10 claims
- 0878US5741603AOptical discSONY CORP·Filed 1997·Granted Apr 21, 1998·34 cites·1 claims
- 0978US4400674ACoil unitTDK ELECTRONICS CO LTD·Filed 1980·Granted Aug 23, 1983·25 cites·7 claims
- 1077US9884425B2Robot, robot control device, and robotic systemSEIKO EPSON CORP·Filed 2016·Granted Feb 6, 2018·3 cites·12 claims
- 1176US10525597B2Robot and robot systemSEIKO EPSON CORP·Filed 2015·Granted Jan 7, 2020·4 cites·15 claims
- 1276US4924200ASplit bobbin and coil deviceTDK CORP·Filed 1989·Granted May 8, 1990·26 cites·3 claims
- 1375USD365845SPhotoconductive unit for a reprographic apparatusMITA INDUSTRIAL CO LTD·Filed 1994·Granted Jan 2, 1996·17 cites·1 claims
- 1473US6710371B2Semiconductor integrated circuit device with enhanced layoutFUJITSU LTD·Filed 2002·Granted Mar 23, 2004·21 cites·19 claims
- 1571US5337128AImage-forming machine with toner image transfer meansMITA INDUSTRIAL CO LTD·Filed 1993·Granted Aug 9, 1994·19 cites·12 claims
- 1670US7390546B2Optical recording mediumSONY CORP·Filed 2003·Granted Jun 24, 2008·7 cites·15 claims
- 1770USD395668SToner cartridgeMITA INDUSTRIAL CO LTD·Filed 1996·Granted Jun 30, 1998·15 cites·1 claims
- 1866USD366276SToner cartridgeMITA INDUSTRIAL CO LTD·Filed 1994·Granted Jan 16, 1996·11 cites·1 claims
- 1965US6956809B2Multilayer phase-change type optical disc capable of recording and reproducing information at high transfer rateSONY CORP·Filed 2002·Granted Oct 18, 2005·5 cites·10 claims
- 2064US11404963B2Electronic circuit with minimized variation in output voltage of DC-DC converter, control system with electronic circuit and method for controlling electronic circuitSOCIONEXT INC·Filed 2020·Granted Aug 2, 2022·0 cites·15 claims
- 2164US6784402B2Steel wire for MAG welding and MAG welding method using the sameJFE STEEL CORP·Filed 2002·Granted Aug 31, 2004·13 cites·13 claims
- 2262US6163660AImage-forming machine equipped with an exchangeable developing unitKYOCERA MITA CORP·Filed 1993·Granted Dec 19, 2000·13 cites·12 claims
- 2359US4073883AMethod for treatment of impaired hearingEISAI CO LTD·Filed 1977·Granted Feb 14, 1978·13 cites·7 claims
- 2458US4624406AOverlay welding methodKAWASAKI STEEL CO·Filed 1983·Granted Nov 25, 1986·14 cites·1 claims
- 2558US2025189505A1Method for evaluating susceptibility to liquid metal embrittlement cracking in resistance spot welded portion of steel sheetJFE STEEL CORP·Filed 2022·Application pending·0 cites
- 2657US5019460AGalvannealed steel sheet having improved spot-weldabilityKAWASAKI STEEL CO·Filed 1989·Granted May 28, 1991·16 cites·2 claims
- 2757US2025229103A1Treatment plan evaluation system, treatment plan evaluation method, and radiotherapy system provided with treatment plan evaluation systemHITACHI HIGH TECH CORP·Filed 2023·Application pending·0 cites
- 2856US2024285972A1Treatment planning system, method, and programHITACHI LTD·Filed 2023·Application pending·0 cites
- 2952US5837956AMethod of fabricating high strength and high toughness large-diameter welded steel pipeKAWASAKI STEEL CO·Filed 1996·Granted Nov 17, 1998·15 cites·2 claims
- 3052US5508792ADeveloping unit including a partition wall defining a non-agitation space in a developer containerMITA INDUSTRIAL CO LTD·Filed 1995·Granted Apr 16, 1996·11 cites·20 claims
- 3148USD747129SChairOKAMURA CORP·Filed 2014·Granted Jan 12, 2016·6 cites·1 claims
- 3247US5508786AImage forming apparatusMITA IND CO LTD A CORP OF JAPA·Filed 1994·Granted Apr 16, 1996·8 cites·7 claims
- 3343US2003134229A1Multi-layered optical discFiled 2002·Application pending·0 cites
- 3441US4798552AApparatus for producing picture tubeHITACHI LTD·Filed 1987·Granted Jan 17, 1989·4 cites·4 claims
- 3540US4802874AMethod of installing mount assembly in cathode ray tubeHITACHI LTD·Filed 1987·Granted Feb 7, 1989·4 cites·4 claims
- 3640US2014037921A1Optical information recording medium and laminate for optical information recording mediumSONY CORP·Filed 2013·Application pending·0 cites
- 3740US2014050877A1Optical information recording medium and optical information recording medium laminateSONY CORP·Filed 2013·Application pending·0 cites
- 3839US6434108B1Optical disc having narrow recording track relative to light spot diameterSONY CORP·Filed 1995·Granted Aug 13, 2002·4 cites·9 claims
- 3939US5923639APhase-change optical recording medium having an additive related to the writing line speedSONY CORP·Filed 1997·Granted Jul 13, 1999·4 cites·22 claims
- 4038US5657310AOptical discSONY CORP·Filed 1995·Granted Aug 12, 1997·3 cites·6 claims
- 4134US4772239ASealing apparatus for picture tubeHITACHI LTD·Filed 1987·Granted Sep 20, 1988·3 cites·5 claims
- 4233US5345299AImage-forming machine with toner image transfer means having a charge supply zone and a transfer zoneMITA INDUSTRIAL CO LTD·Filed 1993·Granted Sep 6, 1994·2 cites·9 claims
- 4333US4904842ABlowhole·pit preventing agent and arc-welding method using the sameKAWASAKI STEEL CO·Filed 1987·Granted Feb 27, 1990·6 cites·5 claims
- 4432US2004140303A1Steel wire for carbon dioxide shielded arc welding and welding process using the sameFiled 2003·Application pending·0 cites
- 4531US4820228ASealing apparatus for picture tubeHITACHI LTD·Filed 1987·Granted Apr 11, 1989·1 cites·1 claims
- 4630USD370024SDeveloping unit for a reprographic apparatusMITA INDUSTRIAL CO LTD·Filed 1994·Granted May 21, 1996·0 cites·1 claims
- 4730US4393364ACoil elementTDK ELECTRONICS CO LTD·Filed 1981·Granted Jul 12, 1983·2 cites·4 claims
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