Assignee
OKI DATA KK
JP·1,363 granted patents·225 pending applications·9,272 citations·filing 1995–2021
Top patents by PatentIndex Score
1,588 records- 0197US7388593B2Image forming apparatusOKI DATA KK·Filed 2005·Granted Jun 17, 2008·38 cites·17 claims
- 0297US7218872B2Image forming apparatusOKI DATA KK·Filed 2005·Granted May 15, 2007·48 cites·12 claims
- 0397US6266511B1Image recording apparatusOKI DATA KK·Filed 2000·Granted Jul 24, 2001·96 cites·9 claims
- 0496US11614696B2Image formation apparatus for forming image using metallic developer and sublimation dyeing developer and method of producing coloring medium using sameOKI DATA KK·Filed 2021·Granted Mar 28, 2023·2 cites·16 claims
- 0596US9981482B2Exposure head, exposure unit, method of manufacturing exposure unit, light receiving head, light receiving unit, and method of manufacturing light receiving unitOKI DATA KK·Filed 2017·Granted May 29, 2018·7 cites·14 claims
- 0696US9746812B2Power supply unit and image forming apparatusOKI DATA KK·Filed 2016·Granted Aug 29, 2017·14 cites·18 claims
- 0796US8366098B2Medium storage device, image forming device and medium storage systemOKI DATA KK·Filed 2011·Granted Feb 5, 2013·14 cites·18 claims
- 0896US8035115B2Semiconductor apparatus, print head, and image forming apparatusOKI DATA KK·Filed 2006·Granted Oct 11, 2011·60 cites·13 claims
- 0996US7863614B2LED backlight device and LCD deviceOKI DATA KK·Filed 2008·Granted Jan 4, 2011·31 cites·25 claims
- 1096US7668501B2Medium supplying apparatus and image forming apparatusOKI DATA KK·Filed 2007·Granted Feb 23, 2010·22 cites·8 claims
- 1196US7457580B2Sheet supplying device and image forming apparatusOKI DATA KK·Filed 2005·Granted Nov 25, 2008·24 cites·14 claims
- 1296US7103308B2Developer cartridge and image forming apparatusOKI DATA KK·Filed 2005·Granted Sep 5, 2006·44 cites·17 claims
- 1396US6549738B2Image forming cartridge and image forming apparatus having a photoreceptor drum that rotates at a constant velocity and is stably groundedOKI DATA KK·Filed 2001·Granted Apr 15, 2003·68 cites·16 claims
- 1496US6324371B1Toner cartridgeOKI DATA KK·Filed 2000·Granted Nov 27, 2001·61 cites·30 claims
- 1596US6069642ACassette for holding ink ribbon and print paper therein and printer incorporating the cassette thereinOKI DATA KK·Filed 1999·Granted May 30, 2000·119 cites·13 claims
- 1695US8689967B2Belt driving device and image forming apparatusOKI DATA KK·Filed 2013·Granted Apr 8, 2014·10 cites·15 claims
- 1795US6019461APrinter and printing cartridge thereforOKI DATA KK·Filed 1996·Granted Feb 1, 2000·301 cites·6 claims
- 1894US7486919B2Transfer apparatus and image forming apparatusOKI DATA KK·Filed 2006·Granted Feb 3, 2009·24 cites·19 claims
- 1994US7469112B2Image forming apparatus having an air-cooling systemOKI DATA KK·Filed 2006·Granted Dec 23, 2008·18 cites·14 claims
- 2094US7272346B2Toner holding apparatus, developing apparatus, and image forming apparatusOKI DATA KK·Filed 2005·Granted Sep 18, 2007·17 cites·22 claims
- 2194US7187876B2Image forming apparatus with mechanism to control toner replenishmentOKI DATA KK·Filed 2004·Granted Mar 6, 2007·52 cites·19 claims
- 2294US6408156B1Image recording apparatus in which a plurality of images of different colors are printed in registrationOKI DATA KK·Filed 2000·Granted Jun 18, 2002·83 cites·24 claims
- 2394US6363233B1Compact toner cartridge with fresh and waste toner chambersOKI DATA KK·Filed 2000·Granted Mar 26, 2002·51 cites·31 claims
- 2494US6028472ATemperature sensing circuit, driving apparatus, and printerOKI DATA KK·Filed 1998·Granted Feb 22, 2000·97 cites·32 claims
- 2594US5722019AToner cartridge and drum cartridge for receiving the toner cartridge thereinOKI DATA KK·Filed 1996·Granted Feb 24, 1998·56 cites·18 claims
- 2693US7921987B2Belt drive device and image forming apparatusOKI DATA KK·Filed 2005·Granted Apr 12, 2011·16 cites·18 claims
- 2793US6343883B1Toner cartridge comprising a magnet assemblyOKI DATA KK·Filed 2000·Granted Feb 5, 2002·50 cites·14 claims
- 2893US6023594AImage forming apparatus having a plurality of image forming stations including devices and receiving sections for detachably receiving the devicesOKI DATA KK·Filed 1998·Granted Feb 8, 2000·72 cites·10 claims
- 2993US5937089AColor conversion method and apparatusOKI DATA KK·Filed 1997·Granted Aug 10, 1999·184 cites·40 claims
- 3092US9740158B2Power supply unit and image forming apparatusOKI DATA KK·Filed 2016·Granted Aug 22, 2017·5 cites·14 claims
- 3192US9448530B1Developer storage body, image forming unit and image forming apparatusOKI DATA KK·Filed 2015·Granted Sep 20, 2016·5 cites·20 claims
- 3292US9429867B2Semiconductor apparatus, exposing head, and image forming apparatusOKI DATA KK·Filed 2015·Granted Aug 30, 2016·6 cites·21 claims
- 3392US8857808B2Medium conveyance apparatus and image forming apparatusOKI DATA KK·Filed 2012·Granted Oct 14, 2014·9 cites·18 claims
- 3492US8380117B2Developer storage apparatus, developer cartridge, developing device and image forming apparatusOKI DATA KK·Filed 2010·Granted Feb 19, 2013·7 cites·26 claims
- 3592US8016287B2Sheet stacking device and image forming deviceOKI DATA KK·Filed 2009·Granted Sep 13, 2011·13 cites·17 claims
- 3692US7847298B2Semiconductor composite apparatus, LED, LED printhead, and image forming apparatusOKI DATA KK·Filed 2006·Granted Dec 7, 2010·13 cites·21 claims
- 3792US7815042B2Belt driving apparatus, fixing apparatus, and image forming apparatusOKI DATA KK·Filed 2005·Granted Oct 19, 2010·19 cites·23 claims
- 3892US7801468B2Toner cartridge and mechanism for opening and closing a toner discharging openingOKI DATA KK·Filed 2006·Granted Sep 21, 2010·15 cites·8 claims
- 3992US7574161B2Developer cartridge, image forming unit and image forming apparatusOKI DATA KK·Filed 2006·Granted Aug 11, 2009·12 cites·11 claims
- 4092US7440705B2Image forming apparatus with toner cartridge and the toner cartridgeOKI DATA KK·Filed 2006·Granted Oct 21, 2008·23 cites·19 claims
- 4192US7437095B2Image forming apparatus and toner cartridgeOKI DATA KK·Filed 2005·Granted Oct 14, 2008·11 cites·15 claims
- 4292US7333762B2Fixing apparatus having a pressurizing mechanismOKI DATA KK·Filed 2005·Granted Feb 19, 2008·18 cites·48 claims
- 4392US6496671B2Toner cartridge with locking toner discharge openingOKI DATA KK·Filed 2000·Granted Dec 17, 2002·41 cites·30 claims
- 4492US6217017B1Paper-feeding apparatus and method of feeding paperOKI DATA KK·Filed 1999·Granted Apr 17, 2001·78 cites·8 claims
- 4592US5781823AImage forming apparatus having a plurality of image forming sections each having different means of forming imagesOKI DATA KK·Filed 1996·Granted Jul 14, 1998·91 cites·38 claims
- 4691US8780417B2Lens array, lens unit, LED head, exposure device, image formation apparatus, and image reading apparatusOKI DATA KK·Filed 2012·Granted Jul 15, 2014·6 cites·20 claims
- 4791US8346132B2Image forming unit and image forming deviceOKI DATA KK·Filed 2010·Granted Jan 1, 2013·7 cites·18 claims
- 4891US7808520B2Exposure device, light emitting diode head, and image forming apparatusOKI DATA KK·Filed 2008·Granted Oct 5, 2010·12 cites·9 claims
- 4991US7804338B2Drive circuit, light emitting diode head, and image forming apparatusOKI DATA KK·Filed 2008·Granted Sep 28, 2010·11 cites·14 claims
- 5091US7526214B2Image forming deviceOKI DATA KK·Filed 2005·Granted Apr 28, 2009·15 cites·16 claims
Showing the top 50 of 1,588 patent records by PatentIndex Score.
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