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.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →