Inventor · disambiguated record
Keiichi Yoshida
Also filed as: YOSHIDA KEIICHI
69 granted patents·10 pending applications·2,297 citations·filing 1990–2024
99Inventor score
Top patents by PatentIndex Score
79 records- 0197US6285597B2Semiconductor integrated circuit and data processing systemHITACHI LTD·Filed 2000·Granted Sep 4, 2001·94 cites·6 claims
- 0296US7599650B2Developer bearing member, developing device, process cartridge and image forming apparatusRICOH KK·Filed 2006·Granted Oct 6, 2009·25 cites·54 claims
- 0396US6496418B2Semiconductor integrated circuit and data processing systemHITACHI LTD·Filed 2001·Granted Dec 17, 2002·89 cites·4 claims
- 0495US7463845B2Charging device having a first and second pressure with a cleaning member, and process cartridge and image forming apparatus including the charging deviceRICOH KK·Filed 2005·Granted Dec 9, 2008·20 cites·7 claims
- 0595US6775185B2Nonvolatile semiconductor memoryRENESAS TECH CORP·Filed 2003·Granted Aug 10, 2004·137 cites·10 claims
- 0694US6134148ASemiconductor integrated circuit and data processing systemHITACHI LTD·Filed 1999·Granted Oct 17, 2000·78 cites·14 claims
- 0794US6091640ASemiconductor integrated circuit with multiple write operation modesHITACHI LTD·Filed 1997·Granted Jul 18, 2000·129 cites·40 claims
- 0893US11335295B1Device and method for driving a display panelSYNAPTICS INC·Filed 2021·Granted May 17, 2022·4 cites·18 claims
- 0993US7826786B2Image forming apparatus, lubricant applying device, transfer device, process cartridge, and tonerRICOH KK·Filed 2005·Granted Nov 2, 2010·17 cites·13 claims
- 1093US6459621B1Semiconductor integrated circuit and data processing systemHITACHI LTD·Filed 2001·Granted Oct 1, 2002·55 cites·31 claims
- 1192US9674994B2Wiring harnessSUMITOMO WIRING SYSTEMS·Filed 2014·Granted Jun 6, 2017·9 cites·8 claims
- 1292US9208922B2Shield connectorSUMITOMO WIRING SYSTEMS·Filed 2014·Granted Dec 8, 2015·9 cites·5 claims
- 1391US7463852B2Image forming apparatus having a developer conveying system and associated methodologyRICOH KK·Filed 2006·Granted Dec 9, 2008·12 cites·20 claims
- 1491US6567315B2Nonvolatile memory and method of programming the same memoryHITACHI LTD·Filed 2001·Granted May 20, 2003·52 cites·7 claims
- 1591US6224484B1Progressive gaming systemKONAMI CO LTD·Filed 1998·Granted May 1, 2001·824 cites·20 claims
- 1688US9057984B2Powder container, toner cartridge, drawer tray, and image forming apparatusYOSHIDA KEIICHI·Filed 2012·Granted Jun 16, 2015·5 cites·17 claims
- 1788US8781375B2Powder container, powder conveying apparatus, and image forming apparatusYOSHIDA KEIICHI·Filed 2011·Granted Jul 15, 2014·5 cites·17 claims
- 1888US8023855B2Development device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2008·Granted Sep 20, 2011·9 cites·20 claims
- 1988US7581058B2Non-volatile memory having multiple erase operationsRENESAS TECH CORP·Filed 2007·Granted Aug 25, 2009·16 cites·3 claims
- 2088US7315723B2Method and apparatus for image forming capable of effectively transporting tonerRICOH KK·Filed 2005·Granted Jan 1, 2008·10 cites·91 claims
- 2188US7290109B2Memory system and memory cardRENESAS TECH CORP·Filed 2002·Granted Oct 30, 2007·47 cites·21 claims
- 2286US6163485ASemiconductor integrated circuit data processing systemHITACHI LTD·Filed 2000·Granted Dec 19, 2000·29 cites·26 claims
- 2385US6771161B1Data transmission system using a human body as a signal transmission pathMATSUSHITA ELECTRIC WORKS LTD·Filed 2000·Granted Aug 3, 2004·100 cites·3 claims
- 2485US5959882ANonvolatile semiconductor memory device and data writing method thereforHITACHI LTD·Filed 1997·Granted Sep 28, 1999·52 cites·24 claims
- 2583US5473570ASemiconductor memory device having an improved sense amplifier arrangementHITACHI LTD·Filed 1994·Granted Dec 5, 1995·41 cites·5 claims
- 2681US6916243B2Gaming machineKONAMI CORP·Filed 2002·Granted Jul 12, 2005·66 cites·18 claims
- 2779US6958940B2Nonvolatile semiconductor memory device capable of realizing optimized erasing operation in a memory arrayHITACHI ULSI SYS CO LTD·Filed 2002·Granted Oct 25, 2005·23 cites·18 claims
- 2879US6501682B2Nonvolatile semiconductor memory deviceHITACHI LTD·Filed 2001·Granted Dec 31, 2002·24 cites·13 claims
- 2976US6320785B1Nonvolatile semiconductor memory device and data writing method thereforHITACHI LTD·Filed 2000·Granted Nov 20, 2001·17 cites·20 claims
- 3076US5532971ANonvolatile semiconductor memory having enhanced speed for erasing and programmingHITACHI LTD·Filed 1994·Granted Jul 2, 1996·36 cites·3 claims
- 3175US7095657B2Nonvolatile semiconductor memory device capable of realizing optimized erasing operation in a memory arrayHITACHI ULSI SYSTEMS CO INC·Filed 2005·Granted Aug 22, 2006·10 cites·7 claims
- 3273US9407027B2Device connectorSUMITOMO WIRING SYSTEMS·Filed 2014·Granted Aug 2, 2016·7 cites·9 claims
- 3372US7209698B2Method and apparatus for image forming capable of using minuscule spherical particles of toner, a process cartridge in use for the apparatus and a toner used in the image forming for obtaining an image with a high thin line reproducibilityRICOH KK·Filed 2004·Granted Apr 24, 2007·13 cites·58 claims
- 3471US6735121B2Nonvolatile memory system having status register for rewrite controlHITACHI LTD·Filed 2001·Granted May 11, 2004·18 cites·20 claims
- 3570US7334080B2Nonvolatile memory with independent access capability to associated bufferRENESAS TECH CORP·Filed 2002·Granted Feb 19, 2008·15 cites·60 claims
- 3669US6930924B2Nonvolatile memory and method of programming the same memoryHITACHI ULSI SYS CO LTD·Filed 2003·Granted Aug 16, 2005·13 cites·15 claims
- 3769US6906952B2Nonvolatile semiconductor memory device and data writing method thereforHITACHI ULSI ENG CORP·Filed 2003·Granted Jun 14, 2005·12 cites·23 claims
- 3868US8145100B2Process cartridge including developing unit and incorporated in image forming apparatusHIRAYAMA YUSHI·Filed 2009·Granted Mar 27, 2012·3 cites·13 claims
- 3968US7002848B2Nonvolatile semiconductor memory deviceHITACHI ULSI SYS CO LTD·Filed 2002·Granted Feb 21, 2006·16 cites·12 claims
- 4068US6525670B1In-home health care systemMATSUSHITA ELECTRIC WORKS LTD·Filed 1999·Granted Feb 25, 2003·38 cites·46 claims
- 4163US8326189B2Developing device, process cartridge, and image forming apparatusFUKUDA YOSHIYUKI·Filed 2010·Granted Dec 4, 2012·1 cites·17 claims
- 4263US5074747AVacuum pumpOSAKA VACUUM LTD·Filed 1990·Granted Dec 24, 1991·25 cites·2 claims
- 4361US7463533B2Nonvolatile semiconductor storage deviceRENESAS TECH CORP·Filed 2006·Granted Dec 9, 2008·3 cites·8 claims
- 4461US2024313462A1Board connector and electrical deviceSUMITOMO WIRING SYSTEMS·Filed 2024·Application pending·0 cites
- 4561US2024313449A1Device connector and electrical deviceSUMITOMO WIRING SYSTEMS·Filed 2024·Application pending·0 cites
- 4660US9331440B2ConnectorSUMITOMO WIRING SYSTEMS·Filed 2014·Granted May 3, 2016·3 cites·6 claims
- 4760US7072225B2Nonvolatile memory and method of programming the same memoryHITACHI ULSI SYS CO LTD·Filed 2005·Granted Jul 4, 2006·3 cites·7 claims
- 4857USRE44350ENonvolatile semiconductor memory including multi-threshold voltage memory cells including voltage ranges indicating either an erase state or a two or more program stateYOSHIDA KEIICHI·Filed 2010·Granted Jul 9, 2013·1 cites·27 claims
- 4957US2024275109A1ConnectorTOYOTA MOTOR CO LTD·Filed 2023·Application pending·0 cites
- 5056US11650679B2Pen holder and display systemMIKAWA AKIHISA·Filed 2022·Granted May 16, 2023·0 cites·10 claims
Showing the top 50 of 79 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →