Inventor · disambiguated record
Yasushi Nakazato
Also filed as: NAKAZATO YASUSHI
88 granted patents·8 pending applications·2,291 citations·filing 1987–2016
99Inventor score
Top patents by PatentIndex Score
96 records- 0198US6400917B2Image forming apparatus for reducing banding caused by vibration of stacked image forming cartridgesRICOH KK·Filed 2001·Granted Jun 4, 2002·82 cites·18 claims
- 0298US6381435B2Color image forming apparatusRICOH KK·Filed 2000·Granted Apr 30, 2002·163 cites·15 claims
- 0398US6236820B1Image forming apparatus for reducing banding caused by vibration of stacked image forming cartridgesRICOH KK·Filed 1999·Granted May 22, 2001·75 cites·15 claims
- 0497US5482265ASheet feeder for an image forming apparatusRICOH KK·Filed 1994·Granted Jan 9, 1996·91 cites·11 claims
- 0596US7457550B2Abnormality determining apparatus, image forming apparatus, copying machine, and information obtaining methodRICOH KK·Filed 2006·Granted Nov 25, 2008·32 cites·9 claims
- 0696US7383013B2Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be chargedRICOH KK·Filed 2007·Granted Jun 3, 2008·18 cites·5 claims
- 0796US6799012B2Cleaning device and image forming apparatus using the sameRICOH KK·Filed 2002·Granted Sep 28, 2004·72 cites·25 claims
- 0896US6697588B2Image forming apparatusRICOH KK·Filed 2003·Granted Feb 24, 2004·35 cites·27 claims
- 0996US6466754B2Image forming apparatus for reducing banding caused by vibration of stacked image forming cartridgesRICOH KK·Filed 2001·Granted Oct 15, 2002·40 cites·4 claims
- 1096US6295435B1Image forming apparatus which corrects deviations between images of different colorsRICOH KK·Filed 2000·Granted Sep 25, 2001·118 cites·18 claims
- 1196US5740494AConfigured to enhance toner collecting efficiency and toner redepositing efficiencyRICOH KK·Filed 1996·Granted Apr 14, 1998·91 cites·40 claims
- 1295US6669189B2Image forming apparatusRICOH KK·Filed 2002·Granted Dec 30, 2003·49 cites·56 claims
- 1395US6580887B2Image forming apparatus including structural members between consecutive optical writing devicesRICOH KK·Filed 2002·Granted Jun 17, 2003·32 cites·37 claims
- 1494US7340204B2Color image forming apparatus and process cartridge thereforRICOH KK·Filed 2005·Granted Mar 4, 2008·21 cites·11 claims
- 1594US7327962B2Abnormality determining method, abnormality determining apparatus, and image forming apparatusRICOH KK·Filed 2007·Granted Feb 5, 2008·35 cites·12 claims
- 1694US7286786B2Image forming method and apparatus including dismountable cartridgesRICOH KK·Filed 2005·Granted Oct 23, 2007·10 cites·55 claims
- 1794US6768886B2Image forming apparatusRICOH KK·Filed 2003·Granted Jul 27, 2004·28 cites·14 claims
- 1894US5638159ADeveloping unit for an image forming apparatus and method of collecting bicomponent developer therefromRICOH KK·Filed 1995·Granted Jun 10, 1997·81 cites·8 claims
- 1994US5606408AImage forming apparatus and cleaning device thereforRICOH KK·Filed 1995·Granted Feb 25, 1997·73 cites·35 claims
- 2093US7359660B2Developing device, process cartridge and image forming apparatus loaded therewithRICOH KK·Filed 2005·Granted Apr 15, 2008·15 cites·7 claims
- 2193US6819892B2Electrophotographic image forming apparatus including air conditioning means for removing harmful substancesRICOH KK·Filed 2002·Granted Nov 16, 2004·42 cites·124 claims
- 2293US6681096B2Image formation apparatus, printer, copying machine, and facsimile deviceRICOH KK·Filed 2001·Granted Jan 20, 2004·62 cites·70 claims
- 2392US8064782B2Management device of an image forming apparatusNAKAZATO YASUSHI·Filed 2008·Granted Nov 22, 2011·13 cites·14 claims
- 2492US7139509B2Image forming apparatus including image transfer belt conveying a recording medium upwardRICOH KK·Filed 2005·Granted Nov 21, 2006·7 cites·28 claims
- 2592US6987944B2Cleaning device and image forming apparatus using the cleaning deviceRICOH KK·Filed 2002·Granted Jan 17, 2006·40 cites·55 claims
- 2692US6760557B2Image forming apparatusRICOH KK·Filed 2003·Granted Jul 6, 2004·19 cites·96 claims
- 2791US7962054B2Image forming apparatus having a function of predicting device deterioration based on a plurality of types of operation control informationRICOH CO LTD·Filed 2007·Granted Jun 14, 2011·11 cites·12 claims
- 2891US7778555B2Abnormality determining apparatus, image forming apparatus, copying machine, and information obtaining methodRICOH KK·Filed 2008·Granted Aug 17, 2010·14 cites·22 claims
- 2991US6345170B1Image forming apparatus for single-sided operation including a reversing deviceRICOH KK·Filed 2000·Granted Feb 5, 2002·41 cites·92 claims
- 3091US4876606AImage forming systemRICOH KK·Filed 1988·Granted Oct 24, 1989·82 cites·20 claims
- 3190US7203431B2Abnormality determining method, abnormality determining apparatus, and image forming apparatusRICOH KK·Filed 2004·Granted Apr 10, 2007·54 cites·7 claims
- 3290US7110917B2Abnormality determining method, and abnormality determining apparatus and image forming apparatus using sameRICOH KK·Filed 2004·Granted Sep 19, 2006·57 cites·48 claims
- 3390US6721523B2Charging device, image forming unit and image forming deviceRICOH KK·Filed 2002·Granted Apr 13, 2004·35 cites·74 claims
- 3490US6470169B2Image forming apparatus and method, a printer, a copying machine, a facsimile device set, and complex machineRICOH KK·Filed 2001·Granted Oct 22, 2002·46 cites·80 claims
- 3589US7903269B2Abnormality determining apparatus, image forming apparatus including the abnormality determining apparatus, and abnormality determining methodRICOH CO LTD·Filed 2005·Granted Mar 8, 2011·11 cites·28 claims
- 3689US7457562B2Image forming apparatus with image forming cartridges arranged one above anotherRICOH KK·Filed 2006·Granted Nov 25, 2008·5 cites·27 claims
- 3789US7050739B2Image forming apparatus with horizontal structural membersRICOH KK·Filed 2004·Granted May 23, 2006·15 cites·118 claims
- 3889US5765087AColor image forming method and color image forming apparatus practicable therewithRICOH KK·Filed 1996·Granted Jun 9, 1998·51 cites·20 claims
- 3988US8150278B2Image forming apparatus including a sound sensor to determine cleaning failureSATOH OSAMU·Filed 2009·Granted Apr 3, 2012·11 cites·15 claims
- 4088US7801462B2Image forming apparatus having a plurality of photoconductive elements, a plurality of optical writing devices and a stayRICOH KK·Filed 2008·Granted Sep 21, 2010·4 cites·28 claims
- 4186US8843004B2Image forming apparatusSATOH OSAMU·Filed 2012·Granted Sep 23, 2014·3 cites·7 claims
- 4286US5034780AImage forming apparatusRICOH KK·Filed 1989·Granted Jul 23, 1991·31 cites·12 claims
- 4384US6980757B2Image forming apparatus with beam slotsRICOH KK·Filed 2003·Granted Dec 27, 2005·10 cites·40 claims
- 4483US8190037B2Fault prediction method, fault prediction system, and image forming apparatusNAKAZATO YASUSHI·Filed 2009·Granted May 29, 2012·7 cites·8 claims
- 4583US5464200ASheet storing device with locking binsRICOH KK·Filed 1994·Granted Nov 7, 1995·34 cites·12 claims
- 4683US4956678ARecording sheet transport apparatusRICOH KK·Filed 1989·Granted Sep 11, 1990·37 cites·15 claims
- 4782US8472818B2Image carrier deterioration degree evaluating device, image carrier failure predicting device, and image forming apparatusYAMANE JUN·Filed 2011·Granted Jun 25, 2013·3 cites·7 claims
- 4882US7991321B2Image forming apparatusRICOH CO LTD·Filed 2010·Granted Aug 2, 2011·1 cites·16 claims
- 4982US6917775B2Dismountable image forming cartridge, and a corresponding image forming apparatus and methodRICOH KK·Filed 2003·Granted Jul 12, 2005·9 cites·34 claims
- 5082US4924320AImage system with connection to operational unitsRICOH KK·Filed 1988·Granted May 8, 1990·54 cites·12 claims
Showing the top 50 of 96 patent records by PatentIndex Score.
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