Inventor · disambiguated record
Yoshio Hattori
Also filed as: HATTORI YOSHIO
71 granted patents·6 pending applications·1,756 citations·filing 1978–2021
99Inventor score
Top patents by PatentIndex Score
77 records- 0199US6665508B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2002·Granted Dec 16, 2003·117 cites·39 claims
- 0299US6628908B2Toner supply unit and image forming apparatusRICOH KK·Filed 2001·Granted Sep 30, 2003·175 cites·19 claims
- 0399US6591077B2Image forming apparatus and toner container thereforRICOH KK·Filed 2001·Granted Jul 8, 2003·143 cites·24 claims
- 0499US6507720B2Color image forming apparatus and toner replenishing apparatus each including plural toner containers received in receiving member of setting part and toner containers thereforRICOH KK·Filed 2001·Granted Jan 14, 2003·209 cites·34 claims
- 0599US6393241B1Nozzle having an end portion capable of penetrating into a toner discharging portion included in a toner container that stores powdery tonerRICOH KK·Filed 2000·Granted May 21, 2002·181 cites·53 claims
- 0698US7130558B2Toner supply unit and image forming apparatusRICOH KK·Filed 2005·Granted Oct 31, 2006·32 cites·62 claims
- 0798US6826381B2Image formation device and agent supplying device including absorber conveying by negative pressureRICOH KK·Filed 2002·Granted Nov 30, 2004·105 cites·31 claims
- 0898US6501913B2Container, its support structure, and image formation apparatusRICOH KK·Filed 2001·Granted Dec 31, 2002·100 cites·10 claims
- 0997US6775503B2Image forming apparatus with improved capabilities for toner supplyRICOH KK·Filed 2002·Granted Aug 10, 2004·79 cites·15 claims
- 1096US7599650B2Developer bearing member, developing device, process cartridge and image forming apparatusRICOH KK·Filed 2006·Granted Oct 6, 2009·25 cites·54 claims
- 1196US7412191B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2007·Granted Aug 12, 2008·16 cites·27 claims
- 1296US7158742B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2005·Granted Jan 2, 2007·17 cites·40 claims
- 1395US7466945B2Toner container, toner replenishing device, developing device, process cartridge and image forming apparatusRICOH KK·Filed 2005·Granted Dec 16, 2008·20 cites·22 claims
- 1495US7463845B2Charging device having a first and second pressure with a cleaning member, and process cartridge and image forming apparatus including the charging deviceRICOH KK·Filed 2005·Granted Dec 9, 2008·20 cites·7 claims
- 1595US6813460B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2003·Granted Nov 2, 2004·34 cites·48 claims
- 1694US7130567B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2004·Granted Oct 31, 2006·30 cites·18 claims
- 1793US9316964B2Fixing device and image forming apparatusYAMAGUCHI YOSHIKI·Filed 2015·Granted Apr 19, 2016·6 cites·18 claims
- 1893US7826786B2Image forming apparatus, lubricant applying device, transfer device, process cartridge, and tonerRICOH KK·Filed 2005·Granted Nov 2, 2010·17 cites·13 claims
- 1992US7542712B2Lubricant applicator, and image forming apparatus and process cartridge using the lubricant applicator, and method for assembling the process cartridgeRICOH KK·Filed 2006·Granted Jun 2, 2009·15 cites·4 claims
- 2092US7356290B2Toner supply unit and image forming apparatusRICOH KK·Filed 2006·Granted Apr 8, 2008·9 cites·34 claims
- 2192US7209687B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2004·Granted Apr 24, 2007·23 cites·38 claims
- 2292US6917779B2Toner conveying device and image forming apparatus including the toner conveying deviceRICOH KK·Filed 2003·Granted Jul 12, 2005·39 cites·23 claims
- 2391US7463852B2Image forming apparatus having a developer conveying system and associated methodologyRICOH KK·Filed 2006·Granted Dec 9, 2008·12 cites·20 claims
- 2490US7542697B2Toner supply unit and image forming apparatusRICOH KK·Filed 2008·Granted Jun 2, 2009·7 cites·20 claims
- 2589US7813680B2Developing device, and image forming apparatus and process cartridge comprising the sameRICOH KK·Filed 2009·Granted Oct 12, 2010·11 cites·12 claims
- 2689US7209689B2Toner supply unit and image forming apparatusRICOH KK·Filed 2003·Granted Apr 24, 2007·20 cites·111 claims
- 2788US10852671B2Fixing device including a cleaner to clean a surface of a cleaning target and image forming apparatus incorporating sameIMADA TAKAHIRO·Filed 2019·Granted Dec 1, 2020·3 cites·19 claims
- 2888US8023855B2Development device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2008·Granted Sep 20, 2011·9 cites·20 claims
- 2988US7315723B2Method and apparatus for image forming capable of effectively transporting tonerRICOH KK·Filed 2005·Granted Jan 1, 2008·10 cites·91 claims
- 3086US10054885B2Pressure and pressure relief device, fixing device, and image forming apparatusOKAMOTO JUN·Filed 2017·Granted Aug 21, 2018·3 cites·11 claims
- 3186US8331834B2Developing unit, image forming apparatus incorporating same, and process cartridge including sameKOETSUKA KYOHTA·Filed 2009·Granted Dec 11, 2012·13 cites·23 claims
- 3286US7110704B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2004·Granted Sep 19, 2006·15 cites·15 claims
- 3385US9329542B2Fixing device and image forming apparatusARAI YUJI·Filed 2014·Granted May 3, 2016·3 cites·15 claims
- 3484US9989897B2Fixing device and image forming apparatus including fixing device with lubricant movement restrictorsOKAMOTO JUN·Filed 2016·Granted Jun 5, 2018·2 cites·12 claims
- 3583US7162188B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2004·Granted Jan 9, 2007·12 cites·47 claims
- 3683US7088945B2Toner supply unit and image forming apparatusRICOH KK·Filed 2004·Granted Aug 8, 2006·13 cites·60 claims
- 3782US9529308B2Image forming apparatus and image forming methodRICOH CO LTD·Filed 2015·Granted Dec 27, 2016·2 cites·17 claims
- 3882US9501006B2Fixing device, image forming apparatus, and fixing methodSHIMOKAWA TOSHIHIKO·Filed 2015·Granted Nov 22, 2016·2 cites·13 claims
- 3978US7010249B2Toner agitating device and toner conveying device for an image forming apparatusRICOH KK·Filed 2003·Granted Mar 7, 2006·15 cites·12 claims
- 4074US8787802B2Developing device, process cartridge, and image-forming apparatusHATTORI YOSHIO·Filed 2011·Granted Jul 22, 2014·2 cites·18 claims
- 4174US5672855ACanceling mechanism for a vehicular turn signal switchNILES PARTS CO LTD·Filed 1996·Granted Sep 30, 1997·27 cites·7 claims
- 4273US9811043B2Image forming apparatusMIMBU RYUUICHI·Filed 2016·Granted Nov 7, 2017·1 cites·15 claims
- 4373US5747763AFitting structure of rotary connector and switchNILES PARTS CO LTD·Filed 1996·Granted May 5, 1998·31 cites·7 claims
- 4471US9494901B2Fixing device and image forming apparatus with a rotatable light shieldSAITO KAZUYA·Filed 2015·Granted Nov 15, 2016·1 cites·19 claims
- 4567US8626034B2Development device, and image forming apparatus and process cartridge incorporating sameKOIKE TOSHIO·Filed 2012·Granted Jan 7, 2014·1 cites·10 claims
- 4665US5804784ALever switch apparatusNILES PARTS CO LTD·Filed 1996·Granted Sep 8, 1998·23 cites·6 claims
- 4765US5128745ASemiconductor device with thin film resistorSEIKO INSTR INC·Filed 1990·Granted Jul 7, 1992·24 cites·9 claims
- 4864US8970858B2Operator guidance system and image forming apparatus incorporating sameAKIYAMA MAMI·Filed 2012·Granted Mar 3, 2015·2 cites·17 claims
- 4964US8676099B2Developing apparatus, process cartridge, and image forming apparatusHATTORI YOSHIO·Filed 2011·Granted Mar 18, 2014·1 cites·22 claims
- 5063US8326189B2Developing device, process cartridge, and image forming apparatusFUKUDA YOSHIYUKI·Filed 2010·Granted Dec 4, 2012·1 cites·17 claims
Showing the top 50 of 77 patent records by PatentIndex Score.
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