Inventor · disambiguated record
Yoshihiko Yamada
Also filed as: SADAMATSU SHIGERU · YAMADA YOSHIHIKO
65 granted patents·3 pending applications·1,459 citations·filing 1974–2019
99Inventor score
Top patents by PatentIndex Score
68 records- 0197US5839872AApparatus for transferring cargoesDAIFUKU KK·Filed 1994·Granted Nov 24, 1998·137 cites·16 claims
- 0296US9482161B2Actuator of link mechanism for internal combustion engine and actuator for variable compression ratio mechanismHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Nov 1, 2016·14 cites·16 claims
- 0395US5513679ADeveloper replenishing cartridge and developer receiving apparatus within which such cartridge is mountedCANON KK·Filed 1994·Granted May 7, 1996·53 cites·23 claims
- 0494US5501186AEngine valve control mechanismUNISIA JECS CORP·Filed 1994·Granted Mar 26, 1996·63 cites·7 claims
- 0593US10883421B2Actuator of variable compression ratio mechanism and actuator of link mechanismHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Jan 5, 2021·5 cites·4 claims
- 0692US9797307B2Actuator of variable compression ratio mechanism and actuator of link mechanismHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Oct 24, 2017·12 cites·18 claims
- 0792US6340010B1Valve operating device for internal combustion engine with variable valve timing and valve-lift characteristic mechanismUNISIA JECS CORP·Filed 2000·Granted Jan 22, 2002·40 cites·26 claims
- 0891US5988125AVariable valve actuation apparatus for engineUNISIA JECS CORP·Filed 1998·Granted Nov 23, 1999·58 cites·30 claims
- 0991US5551350ATransporting system driven by linear motor having inductive power supplyDAIFUKU KK·Filed 1994·Granted Sep 3, 1996·58 cites·9 claims
- 1091US5365896ACam shaft assembly for use in internal combustion engineUNISIA JECS CORP·Filed 1993·Granted Nov 22, 1994·56 cites·14 claims
- 1191US4737153AReinforced therapeutic tubeKURARAY CO·Filed 1987·Granted Apr 12, 1988·329 cites·21 claims
- 1290US6260523B1Variable-valve-actuation apparatus for internal combustion engineUNISIA JECS CORP·Filed 2000·Granted Jul 17, 2001·33 cites·13 claims
- 1390US5520229ADeveloper replenishing cartridge and developer receiving apparatus within which such cartridge is mountedCANON KK·Filed 1995·Granted May 28, 1996·45 cites·6 claims
- 1489US5203289AVariable timing mechanismATSUGI UNISIA CORP·Filed 1991·Granted Apr 20, 1993·53 cites·35 claims
- 1587US8006658B2Variable valve actuation apparatus of internal combustion engineHITACHI LTD·Filed 2009·Granted Aug 30, 2011·11 cites·19 claims
- 1687US6041746AVariable valve actuation apparatusNISSAN MOTOR·Filed 1998·Granted Mar 28, 2000·42 cites·9 claims
- 1787US5924334ADevice for moving cam relative to its driving shaftUNISIA JECS CORP·Filed 1997·Granted Jul 20, 1999·60 cites·12 claims
- 1886US6305336B1Electromagnetic driving device of engine valve for internal combustion engineUNISIA JECS CORP·Filed 2000·Granted Oct 23, 2001·29 cites·19 claims
- 1983US6792614B1Optical disk apparatus and method of installing its spindle motorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Sep 14, 2004·18 cites·12 claims
- 2083US6123053AVariable valve actuation apparatus for internal combustion enginesUNISIA JECS CORP·Filed 1999·Granted Sep 26, 2000·38 cites·3 claims
- 2181US6055949AVariable valve actuator apparatusNISSAN MOTOR·Filed 1998·Granted May 2, 2000·35 cites·7 claims
- 2279US8235528B2Fundus photographing apparatusMUKAI HIDEO·Filed 2010·Granted Aug 7, 2012·13 cites·7 claims
- 2377US6597142B2Apparatus and method for setting control parameters of machining apparatusTOYODA MACHINE WORKS LTD·Filed 2001·Granted Jul 22, 2003·26 cites·9 claims
- 2477US5645020ACAM assembly installation in engineUNISIA JECS CORP·Filed 1996·Granted Jul 8, 1997·30 cites·17 claims
- 2576US7600496B2Valve operating apparatus for internal combustion engineHITACHI LTD·Filed 2007·Granted Oct 13, 2009·8 cites·13 claims
- 2676US7484485B2Variable-valve-actuation apparatus for internal combustion engineHITACHI LTD·Filed 2007·Granted Feb 3, 2009·4 cites·9 claims
- 2775US7401581B2Variable valve apparatus for internal combustion engineHITACHI LTD·Filed 2006·Granted Jul 22, 2008·5 cites·24 claims
- 2875US5125373AOil passage structure for rocker-arm shaft for internal combustion engineATSUGI UNISIA CORP·Filed 1991·Granted Jun 30, 1992·28 cites·6 claims
- 2974US11059115B2Gear machining apparatus and gear machining methodJTEKT CORP·Filed 2017·Granted Jul 13, 2021·1 cites·11 claims
- 3074US10107155B2Valve timing control apparatus of internal combustion engineHYUNDAI MOTOR CO LTD·Filed 2016·Granted Oct 23, 2018·1 cites·8 claims
- 3174US8667936B2Valve control apparatus for internal combustion engineKAJIURA MIKIHIRO·Filed 2010·Granted Mar 11, 2014·3 cites·10 claims
- 3273US8082895B2Variable valve system for internal combustion engine and its driving mechanismYAMADA YOSHIHIKO·Filed 2008·Granted Dec 27, 2011·5 cites·19 claims
- 3373US6497206B2Engine with two cylinder banks each with a valve operating device enabling variation of valve timing and valve lift characteristicNISSAN MOTOR·Filed 2001·Granted Dec 24, 2002·13 cites·33 claims
- 3472US10400668B2Actuator device for variable compression ratio internal combustion engineNISSAN MOTOR·Filed 2016·Granted Sep 3, 2019·1 cites·8 claims
- 3572US6345595B2Control apparatus for variably operated engine valve mechanism of internal combustion engineUNISIA JECS CORP·Filed 2001·Granted Feb 12, 2002·12 cites·18 claims
- 3671US10400666B2Variable compression ratio mechanism for internal combustion engineNISSAN MOTOR·Filed 2016·Granted Sep 3, 2019·1 cites·6 claims
- 3770US7032551B2Adjusting mechanism adjusting method of valve-lift amount of internal combustion engineNISSAN MOTOR·Filed 2005·Granted Apr 25, 2006·4 cites·7 claims
- 3867US10391560B2Cutting device and cutting methodJTEKT CORP·Filed 2015·Granted Aug 27, 2019·1 cites·34 claims
- 3967US7070368B2Method for setting a machining feed rate and a machine tool using the sameTOYODA KOKI KABUSHIKI KAISJA·Filed 2002·Granted Jul 4, 2006·15 cites·30 claims
- 4066US7311070B2Variable valve system of internal combustion engine and method of assembling sameHITACHI LTD·Filed 2005·Granted Dec 25, 2007·3 cites·18 claims
- 4166US6257182B1Electromagnetic drive system for engine valveUNISIA CORP·Filed 1999·Granted Jul 10, 2001·23 cites·17 claims
- 4262US10919094B2Cutting device and cutting methodJTEKT CORP·Filed 2019·Granted Feb 16, 2021·0 cites·2 claims
- 4362US10191017B2Dynamic characteristic calculation apparatus and its method for machine toolJTEKT CORP·Filed 2013·Granted Jan 29, 2019·1 cites·14 claims
- 4462US8818549B2Controller for machine tool and five-axis simultaneous control machine tool controlled therebyYAMADA YOSHIHIKO·Filed 2010·Granted Aug 26, 2014·1 cites·16 claims
- 4561US6745154B2Remote diagnosis method and system, and portable information processor thereforMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jun 1, 2004·10 cites·29 claims
- 4660US7047921B2Variable-valve-actuation apparatus for internal combustion engineHITACHI LTD·Filed 2003·Granted May 23, 2006·5 cites·18 claims
- 4759US8801178B2Fundus photographing apparatusMUKAI HIDEO·Filed 2011·Granted Aug 12, 2014·1 cites·20 claims
- 4859US7497192B2Variable valve system with control shaft actuating mechanismHITACHI LTD·Filed 2005·Granted Mar 3, 2009·2 cites·9 claims
- 4958US3955983AProcess for forming a color image on an exposed photosensitive materialFUJI PHOTO FILM CO LTD·Filed 1974·Granted May 11, 1976·10 cites·10 claims
- 5057US6568361B2Valve operating device for internal combustion enginesUNISIA JECS CORP·Filed 2001·Granted May 27, 2003·6 cites·8 claims
Showing the top 50 of 68 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →