Inventor · disambiguated record
Tadayuki Tsuda
Also filed as: TSUDA TADAYUKI
86 granted patents·1 pending application·5,387 citations·filing 1985–2025
99Inventor score
Files withCANON KK87
Top patents by PatentIndex Score
87 records- 0199US11067942B2Drum unit, cartridge, electrophotographic image forming apparatus and coupling memberCANON KK·Filed 2020·Granted Jul 20, 2021·9 cites·28 claims
- 0299US10996620B2Process cartridge and image forming apparatusCANON KK·Filed 2020·Granted May 4, 2021·8 cites·20 claims
- 0399US6603939B1Developing apparatus, process cartridge, connecting method between developing frame and developer frame, and flexible sealCANON KK·Filed 2001·Granted Aug 5, 2003·175 cites·31 claims
- 0499US6542706B2Process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2000·Granted Apr 1, 2003·154 cites·28 claims
- 0599US6519431B1Process cartridge, assembling method therefor and electrophotographic image forming apparatusCANON KK·Filed 2000·Granted Feb 11, 2003·173 cites·38 claims
- 0699US6173145B1Developing apparatus with drive mechanism for developer bearing bodyCANON KK·Filed 1999·Granted Jan 9, 2001·208 cites·18 claims
- 0799US5404198AProcess cartridge and image forming apparatusCANON KK·Filed 1992·Granted Apr 4, 1995·124 cites·59 claims
- 0899US5331372AProcess cartridge and image forming apparatus on which process cartridge is mountableCANON KK·Filed 1992·Granted Jul 19, 1994·135 cites·33 claims
- 0999US5294960ADetachable two-frame process cartridge for an image forming apparatusCANON KK·Filed 1993·Granted Mar 15, 1994·144 cites·56 claims
- 1098US10671013B2Drum unit, cartridge, electrophotographic image forming apparatus and coupling memberCANON KK·Filed 2019·Granted Jun 2, 2020·16 cites·96 claims
- 1198US6154623AProcess cartridge and image forming apparatusCANON KK·Filed 1997·Granted Nov 28, 2000·164 cites·35 claims
- 1298US6006058AProcess cartridge and electrophotographic image forming apparatus having an improved driving systemCANON KK·Filed 1997·Granted Dec 21, 1999·154 cites·61 claims
- 1398US5809374AProcess cartridge including a seal member formed from a liquid-foam materialCANON KK·Filed 1996·Granted Sep 15, 1998·127 cites·15 claims
- 1498US5669042AImage forming system having means to support at least one component of a process cartridgeCANON KK·Filed 1994·Granted Sep 16, 1997·128 cites·88 claims
- 1598US5659847AProcess cartridge having positioning member for positioning optical deviceCANON KK·Filed 1992·Granted Aug 19, 1997·110 cites·40 claims
- 1698US5623328AProcess cartridge and image forming system on which process cartridge is mountableCANON KK·Filed 1994·Granted Apr 22, 1997·146 cites·45 claims
- 1798US5583613AImage forming systemCANON KK·Filed 1994·Granted Dec 10, 1996·97 cites·45 claims
- 1898US5488459AImage bearing member having an asymmetrically weighted base, process cartridge and image forming apparatusCANON KK·Filed 1993·Granted Jan 30, 1996·113 cites·33 claims
- 1998US5475470AProcess cartridge and image forming system on which the process cartridge is mountable using a handgripCANON KK·Filed 1994·Granted Dec 12, 1995·109 cites·34 claims
- 2098US5345294AProcess cartridge and image forming apparatus using sameCANON KK·Filed 1992·Granted Sep 6, 1994·127 cites·32 claims
- 2198US5223893AProcess cartridge detachably mountable to image forming apparatusCANON KK·Filed 1990·Granted Jun 29, 1993·105 cites·38 claims
- 2298US5151734AProcess cartridge detachably mountable to image forming apparatus featuring a peripherally supported image bearing drumCANON KK·Filed 1990·Granted Sep 29, 1992·114 cites·24 claims
- 2398US5126800AProcess cartridge and image forming apparatus usable with same featuring selectively engageable drive mechanismCANON KK·Filed 1991·Granted Jun 30, 1992·103 cites·20 claims
- 2497US11846910B2Process cartridge and image forming apparatusCANON KK·Filed 2022·Granted Dec 19, 2023·2 cites·20 claims
- 2597US11567447B2Process cartridge and image forming apparatusCANON KK·Filed 2022·Granted Jan 31, 2023·3 cites·9 claims
- 2697US11327432B2Process cartridge and image forming apparatusCANON KK·Filed 2021·Granted May 10, 2022·3 cites·15 claims
- 2797US6823155B2Process cartridge and image forming apparatusCANON KK·Filed 2001·Granted Nov 23, 2004·90 cites·9 claims
- 2897US6334035B1Developer container and cartridgeCANON KK·Filed 2000·Granted Dec 25, 2001·80 cites·48 claims
- 2997US5926672APhotosensitive drum provided in an image forming apparatus including helical gears disposed at an end of the drumCANON KK·Filed 1996·Granted Jul 20, 1999·101 cites·70 claims
- 3097US5828928AProcess cartridge mountable in an image forming system and a method for assembling a cleaning deviceCANON KK·Filed 1995·Granted Oct 27, 1998·114 cites·32 claims
- 3197US5602623APhotosensitive drum provided in an image forming apparatus including gears disposed at an end of drumCANON KK·Filed 1995·Granted Feb 11, 1997·108 cites·21 claims
- 3297US5510878AProcess cartridge and image forming systemCANON KK·Filed 1995·Granted Apr 23, 1996·112 cites·46 claims
- 3397US5470635ABlade member having a flat-surface side and an angled-surface sideCANON KK·Filed 1993·Granted Nov 28, 1995·126 cites·31 claims
- 3497US5208634AProcess cartridge detachably mountable to image forming apparatus featuring an injectable sealing memberCANON KK·Filed 1991·Granted May 4, 1993·93 cites·30 claims
- 3596US11409227B2Drum unit, cartridge, electrophotographic image forming apparatus and coupling memberCANON KK·Filed 2021·Granted Aug 9, 2022·3 cites·47 claims
- 3696US11378914B2Process cartridge and image forming apparatusCANON KK·Filed 2021·Granted Jul 5, 2022·3 cites·10 claims
- 3796US6415121B1Connecting method of resin material molded product, process cartridge and assembling method of process cartridgeCANON KK·Filed 2000·Granted Jul 2, 2002·156 cites·69 claims
- 3896US6097906AElectrophotographic image forming apparatus having a main assembly connector and a process cartridge having a cartridge connector electrically connectable with the main assembly connectorCANON KK·Filed 1998·Granted Aug 1, 2000·97 cites·26 claims
- 3996US6011941AProcess cartridge and electrophotographic image forming apparatusCANON KK·Filed 1998·Granted Jan 4, 2000·91 cites·19 claims
- 4096US5907749AProcess cartridge and image forming apparatus usable therewithCANON KK·Filed 1997·Granted May 25, 1999·65 cites·99 claims
- 4196US5608509AProcess cartridge with blade member having a flat-surface side and an angled-surface sideCANON KK·Filed 1995·Granted Mar 4, 1997·109 cites·37 claims
- 4296US5581325AProcess cartridge having an electroconductive grounding member and an image forming apparatus using such a process cartridgeCANON KK·Filed 1994·Granted Dec 3, 1996·70 cites·19 claims
- 4395US12099325B2Process cartridge and image forming apparatusCANON KK·Filed 2023·Granted Sep 24, 2024·1 cites·12 claims
- 4495US10948872B2Process cartridge and image forming apparatus having an electrical contact portion mounted on a projection and electrically connected to a storing portionCANON KK·Filed 2019·Granted Mar 16, 2021·7 cites·9 claims
- 4595US6535699B1Developer container, developer amount detecting system, process cartridge, developing device, and image forming apparatusCANON KK·Filed 2001·Granted Mar 18, 2003·63 cites·17 claims
- 4694US6424811B1Electrophotographic image forming apparatus and process cartridge detachably mounted thereto having first and second drive force transmitting meansCANON KK·Filed 2000·Granted Jul 23, 2002·56 cites·24 claims
- 4794US5878304AProcess cartridge having shiftable cover with inner protrusionCANON KK·Filed 1995·Granted Mar 2, 1999·63 cites·26 claims
- 4894US5812909ADeveloping deviceCANON KK·Filed 1997·Granted Sep 22, 1998·71 cites·10 claims
- 4994US5561504AProcess cartridge, method for assembling same and image forming system with self-regulating liquid seal featureCANON KK·Filed 1994·Granted Oct 1, 1996·53 cites·64 claims
- 5093US6324363B1Process cartridge and electrophotographic image forming apparatusCANON KK·Filed 1997·Granted Nov 27, 2001·66 cites·114 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →