Inventor · disambiguated record
Yoshihiro Ito
Also filed as: ITO YOSHIHIRO
215 granted patents·50 pending applications·8,715 citations·filing 1982–2025
99Inventor score
Files withCANON KK37FUJI PHOTO FILM CO LTD32FUJIFILM CORP23HONDA MOTOR CO LTD16MURATA MANUFACTURING CO14
Top patents by PatentIndex Score
265 records- 0199US7501293B2Semiconductor device in which zinc oxide is used as a semiconductor material and method for manufacturing the semiconductor deviceMURATA MANUFACTURING CO·Filed 2003·Granted Mar 10, 2009·4.1k cites·9 claims
- 0299US6501927B1Process cartridge and photosensitive drum driving mountCANON KK·Filed 2000·Granted Dec 31, 2002·124 cites·23 claims
- 0399US6501926B1Process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2000·Granted Dec 31, 2002·186 cites·23 claims
- 0499US6349188B1Process cartridge, electrophotographic image forming apparatus, driving force transmission part and electrophotographic photosensitive drumCANON KK·Filed 2000·Granted Feb 19, 2002·126 cites·10 claims
- 0599US6240266B1Process cartridge and drum mount for photosensitive drumCANON KK·Filed 1997·Granted May 29, 2001·245 cites·91 claims
- 0699US6226478B1Process cartridge having drive mount for photosensitive drumCANON KK·Filed 1997·Granted May 1, 2001·175 cites·83 claims
- 0799US6128454AProcess cartridge, electrophotographic image forming apparatus, driving force transmission part, and electrophotographic photosensitive drumCANON KK·Filed 1999·Granted Oct 3, 2000·185 cites·62 claims
- 0899US5903803AProcess cartridge, electrophotographic image forming apparatus, driving force transmission part, and electrophotographic photosensitive drumCANON KK·Filed 1996·Granted May 11, 1999·356 cites·146 claims
- 0998US9878435B2Power rotary tool and impact power toolMAKITA CORP·Filed 2014·Granted Jan 30, 2018·18 cites·23 claims
- 1098US9108456B2Writing instrumentITO YOSHIHIRO·Filed 2011·Granted Aug 18, 2015·23 cites·23 claims
- 1198US7274896B2Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2006·Granted Sep 25, 2007·34 cites·9 claims
- 1298US7124839B2Impact driver having an external mechanism which operation mode can be selectively switched between impact and drill modesMAKITA CORP·Filed 2005·Granted Oct 24, 2006·116 cites·20 claims
- 1398US6885838B2Electrophotographic photosensitive drum having twisted projection coupling member engageable with twisted hole driving coupling of motor, and process cartridge and electrophotographic image forming apparatus using sameCANON KK·Filed 2003·Granted Apr 26, 2005·62 cites·23 claims
- 1498US6658219B1Method, device, system and recording medium for detecting improper cartridge, and cartridgeFUJI PHOTO FILM CO LTD·Filed 2000·Granted Dec 2, 2003·66 cites·18 claims
- 1598US6336018B1Electrophotographic image forming apparatus, process cartridge, and drive mount for photosensitive drumCANON KK·Filed 1997·Granted Jan 1, 2002·189 cites·79 claims
- 1698US6175706B1Process cartridge, electrophotographic image forming apparatus driving force transmission part and electrophotographic photosensitive drumCANON KK·Filed 1997·Granted Jan 16, 2001·181 cites·69 claims
- 1798US6163665AProcess cartridge electrophotographic image forming apparatus and positioning there betweenCANON KK·Filed 1997·Granted Dec 19, 2000·138 cites·72 claims
- 1898US5937239AProcess cartridge and electrophotographic image forming apparatusCANON KK·Filed 1996·Granted Aug 10, 1999·137 cites·37 claims
- 1997US11260515B2Oil unit for impact power toolMAKITA CORP·Filed 2019·Granted Mar 1, 2022·8 cites·20 claims
- 2097US9844973B2Writing instrumentPILOT INK CO LTD·Filed 2015·Granted Dec 19, 2017·6 cites·32 claims
- 2197US7248814B2Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2006·Granted Jul 24, 2007·19 cites·10 claims
- 2297US6859682B2Pet robot charging systemFUJI PHOTO FILM CO LTD·Filed 2003·Granted Feb 22, 2005·166 cites·15 claims
- 2396US7636518B2Digital cameraFUJIFILM CORP·Filed 2006·Granted Dec 22, 2009·38 cites·12 claims
- 2496US7626621B2Solid-state image pickup device and optical instrument using the same for adjusting curvatures of solid-state image pickup device based on focal length of lenses in optical instrumentFUJIFILM CORP·Filed 2004·Granted Dec 1, 2009·105 cites·33 claims
- 2596US7265910B2Optical unit, image taking apparatus and optical finderFUJIFILM CORP·Filed 2005·Granted Sep 4, 2007·38 cites·23 claims
- 2695US10486296B2Power rotary tool and impact power toolMAKITA CORP·Filed 2017·Granted Nov 26, 2019·7 cites·20 claims
- 2795USD546863SCamera lens adaptorFUJI PHOTO FILM CO LTD·Filed 2006·Granted Jul 17, 2007·64 cites·1 claims
- 2895US7065430B2Receiving apparatusFUJI PHOTO FILM CO LTD·Filed 2004·Granted Jun 20, 2006·97 cites·6 claims
- 2994US10788788B2Electrophotographic image forming apparatus having a driving-force transmission member featuring first and second helical gear portions with opposing twist directionsCANON KK·Filed 2019·Granted Sep 29, 2020·5 cites·21 claims
- 3094US10493791B2Writing instrumentPILOT INK CO LTD·Filed 2017·Granted Dec 3, 2019·3 cites·10 claims
- 3193US8960664B2Image forming apparatusCANON KK·Filed 2013·Granted Feb 24, 2015·11 cites·13 claims
- 3293US6994341B2Sheet feeding device and image forming apparatus equipped with the sameCANON KK·Filed 2003·Granted Feb 7, 2006·40 cites·15 claims
- 3392US10427282B2Rotary impact tool and method for controlling the sameMAKITA CORP·Filed 2016·Granted Oct 1, 2019·11 cites·10 claims
- 3492US7619654B2Camera and lens deviceFUJIFILM CORP·Filed 2006·Granted Nov 17, 2009·17 cites·7 claims
- 3592US7020414B2Method, device, system and recording medium for detecting improper cartridge, and cartridgeFUJI PHOTO FILM CO LTD·Filed 2004·Granted Mar 28, 2006·20 cites·27 claims
- 3691US2025114931A1Impact power toolMAKITA CORP·Filed 2024·Application pending·0 cites
- 3790US10303116B2Electrophotographic image forming apparatus having a driving-force transmission member featuring first and second helical gear portions with opposing twist directionsCANON KK·Filed 2017·Granted May 28, 2019·3 cites·19 claims
- 3890US8725042B2Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatusWATANABE KAZUSHI·Filed 2011·Granted May 13, 2014·5 cites·109 claims
- 3990US8709721B2Fluorescent molecule and method for detecting target nucleic acidABE HIROSHI·Filed 2010·Granted Apr 29, 2014·11 cites·20 claims
- 4090US7635906B2Ultraviolet sensorMURATA MANUFACTURING CO·Filed 2008·Granted Dec 22, 2009·12 cites·14 claims
- 4190US7215480B2Variable-focus lens and image taking apparatusFUJINON CORP·Filed 2005·Granted May 8, 2007·14 cites·17 claims
- 4290US6654567B2Process cartridge detachable from electrophotographic image forming apparatus having wireless communicationCANON KK·Filed 2001·Granted Nov 25, 2003·34 cites·13 claims
- 4389US12090619B2Screwing machine and method for assembling screwing machineMAKITA CORP·Filed 2021·Granted Sep 17, 2024·2 cites·20 claims
- 4489US7389068B2Image forming apparatus with adjustment of belt memberCANON KK·Filed 2007·Granted Jun 17, 2008·8 cites·3 claims
- 4589US7203011B2Lens device, imaging device using the same and cell-phone with camera using the sameFUJINON CORP·Filed 2005·Granted Apr 10, 2007·22 cites·14 claims
- 4689US6697578B2Memory member, unit, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2001·Granted Feb 24, 2004·25 cites·161 claims
- 4789US6144398AProcess cartridge and electrophotographic image forming apparatusCANON KK·Filed 1998·Granted Nov 7, 2000·48 cites·25 claims
- 4888US9353153B2Cyclic RNA and protein production methodRIKEN·Filed 2013·Granted May 31, 2016·10 cites·15 claims
- 4988US9212004B2Belt transporting device and image forming apparatusCANON KK·Filed 2013·Granted Dec 15, 2015·4 cites·26 claims
- 5088US8167056B2Rechargeable electric toolITO YOSHIHIRO·Filed 2009·Granted May 1, 2012·29 cites·10 claims
Showing the top 50 of 265 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →