Inventor · disambiguated record
Hiroaki Ogata
Also filed as: OGATA HIROAKI
31 granted patents·1 pending application·908 citations·filing 1992–2008
98Inventor score
Top patents by PatentIndex Score
32 records- 0196US7218871B2Image forming apparatus and method of controlling sameCANON KK·Filed 2005·Granted May 15, 2007·27 cites·28 claims
- 0296US6546212B1Image forming apparatus and unit detachably attachable to the same image forming apparatus and information displaying system related to unit detachably attachable to the same image forming apparatusCANON KK·Filed 2000·Granted Apr 8, 2003·54 cites·24 claims
- 0393US5835818AService life informing device for charged member, informing method thereof, process cartridge and image forming apparatusCANON KK·Filed 1996·Granted Nov 10, 1998·65 cites·85 claims
- 0492US6453139B2Image forming apparatusCANON KK·Filed 2001·Granted Sep 17, 2002·39 cites·37 claims
- 0592US5519472ADeveloping apparatus using elastic bladeCANON KK·Filed 1994·Granted May 21, 1996·46 cites·17 claims
- 0691US6594451B2Image forming apparatus, and use situation reporting system for reporting use situations of developer and other consumables stowed in image forming apparatusCANON KK·Filed 2000·Granted Jul 15, 2003·39 cites·22 claims
- 0790US6496664B1Image forming apparatus comprising storing means for storing information that a setting operation is performedCANON KK·Filed 2000·Granted Dec 17, 2002·37 cites·19 claims
- 0890US6415125B1Developing apparatus featuring an area where a partly exposed developer agitating member and conveying member are disposedCANON KK·Filed 2000·Granted Jul 2, 2002·35 cites·24 claims
- 0990US5534344ACharging member having a loosely supported charger portionCANON KK·Filed 1993·Granted Jul 9, 1996·40 cites·32 claims
- 1090US5475471AChanging member having a charging surface arranged with respect to a tangent lineCANON KK·Filed 1992·Granted Dec 12, 1995·40 cites·66 claims
- 1187US6587649B1Image forming apparatus, cartridge detachably mountable to the image forming apparatus, developer remainder displaying method and systemCANON KK·Filed 2000·Granted Jul 1, 2003·23 cites·35 claims
- 1286US6493519B2Image forming apparatus having a plurality of image forming stations, and unit detachably mountable on the apparatusCANON KK·Filed 2001·Granted Dec 10, 2002·24 cites·20 claims
- 1386US5818189AElectric power-assisted wheelchairYAMAHA MOTOR CO LTD·Filed 1997·Granted Oct 6, 1998·92 cites·12 claims
- 1484US6354390B1Power assisted wheelchairYAMAHA MOTOR CO LTD·Filed 1998·Granted Mar 12, 2002·72 cites·45 claims
- 1583US6714745B2Image forming apparatus having a plurality of image forming stations, and unit detachably mountable on the apparatusCANON KK·Filed 2002·Granted Mar 30, 2004·20 cites·6 claims
- 1681US6912366B1Image forming apparatus comprising means for detecting an amount of developer contained in a developer container, a memory for storing the amount detected by the detecting means, and control means for updating the information stored in the memoryCANON KK·Filed 2000·Granted Jun 28, 2005·16 cites·18 claims
- 1779US7349658B2Image forming apparatus that has a full-color mode and a monocolor mode, and image forming apparatus that can adjust the length of a non-image forming region during mode switching stateCANON KK·Filed 2005·Granted Mar 25, 2008·6 cites·6 claims
- 1877US7058320B2Image forming apparatus, cartridge detachably mountable to the image forming apparatus, developer remainder displaying method and systemCANON KK·Filed 2003·Granted Jun 6, 2006·13 cites·23 claims
- 1975US5715499AContact charger having an oscillating voltage for charging a photosensitive memberCANON KK·Filed 1997·Granted Feb 3, 1998·25 cites·15 claims
- 2075US5708343AControl device for direct current electric motorYAMAHA MOTOR CO LTD·Filed 1995·Granted Jan 13, 1998·38 cites·4 claims
- 2171US6785482B2Image forming apparatus having a transfer current detection device and control for developing bias in non-image areaCANON KK·Filed 2003·Granted Aug 31, 2004·14 cites·22 claims
- 2270US7068955B2Image forming apparatus having developer amount detectorCANON KK·Filed 2003·Granted Jun 27, 2006·9 cites·6 claims
- 2370US6476837B2Developer remaining amount detecting apparatus and developer remaining amount detecting methodCANON KK·Filed 1999·Granted Nov 5, 2002·19 cites·9 claims
- 2470US6230831B1Wheel chair with auxiliary powerYAMAHA MOTOR CO LTD·Filed 1998·Granted May 15, 2001·49 cites·21 claims
- 2568US7583916B2Image forming apparatusCANON KK·Filed 2004·Granted Sep 1, 2009·11 cites·20 claims
- 2666US6925267B2Memory device storing information warning a user about the developer-remaining amount, a process cartridge including a memory storing such information, and a control system and a memory system for warning a user about the developer-remaining amountCANON KK·Filed 2002·Granted Aug 2, 2005·7 cites·28 claims
- 2763US5546167ACharging device, process cartridge and image forming apparatusCANON KK·Filed 1994·Granted Aug 13, 1996·14 cites·14 claims
- 2862US5678141ACharging apparatus and process cartridgeCANON KK·Filed 1994·Granted Oct 14, 1997·13 cites·23 claims
- 2961US5799233ACharging apparatus and image forming apparatusCANON KK·Filed 1996·Granted Aug 25, 1998·14 cites·12 claims
- 3050US7542690B2Color image forming apparatus, and program and method of controlling a color image forming apparatusCANON KK·Filed 2008·Granted Jun 2, 2009·0 cites·2 claims
- 3137US2003053809A1Image forming apparatus and unit detachably attachable to the same image forming apparatus and information displaying system related to unit detachably attachable to the same image forming apparatusCANON KK·Filed 2002·Application pending·0 cites
- 3231US6465983B1Overcurrent protection deviceYAMAHA MOTOR CO LTD·Filed 1995·Granted Oct 15, 2002·7 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →