Inventor · disambiguated record
Kazuhisa Sudo
Also filed as: SUDO KAZUHISA
52 granted patents·9 pending applications·2,122 citations·filing 1993–2010
99Inventor score
Top patents by PatentIndex Score
61 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
- 0499US6522855B1Image forming apparatus and developing apparatus preventing uneven image densityRICOH KK·Filed 2000·Granted Feb 18, 2003·161 cites·38 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
- 0699US6337957B1Image forming apparatus and developing device with improved self toner density controlRICOH KK·Filed 2000·Granted Jan 8, 2002·191 cites·76 claims
- 0798US7577379B2Toner container, toner supply device and image forming apparatusRICOH KK·Filed 2007·Granted Aug 18, 2009·42 cites·9 claims
- 0898US7184691B2Toner container, toner supply device and image forming apparatusRICOH KK·Filed 2005·Granted Feb 27, 2007·81 cites·27 claims
- 0998US7130558B2Toner supply unit and image forming apparatusRICOH KK·Filed 2005·Granted Oct 31, 2006·32 cites·62 claims
- 1098US6826381B2Image formation device and agent supplying device including absorber conveying by negative pressureRICOH KK·Filed 2002·Granted Nov 30, 2004·105 cites·31 claims
- 1198US6501913B2Container, its support structure, and image formation apparatusRICOH KK·Filed 2001·Granted Dec 31, 2002·100 cites·10 claims
- 1298US5394231AImage forming apparatus capable of forming an erasable imageRICOH KK·Filed 1993·Granted Feb 28, 1995·105 cites·10 claims
- 1397US7212773B2Image forming apparatusRICOH KK·Filed 2004·Granted May 1, 2007·107 cites·22 claims
- 1497US6775503B2Image forming apparatus with improved capabilities for toner supplyRICOH KK·Filed 2002·Granted Aug 10, 2004·79 cites·15 claims
- 1596US7412191B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2007·Granted Aug 12, 2008·16 cites·27 claims
- 1696US7272342B2Image forming apparatus having a detachable cartridge including a photoconductive drum with axis shaft having a minimal rotational eccentricity, and a method of assembling the image forming apparatusRICOH KK·Filed 2006·Granted Sep 18, 2007·26 cites·14 claims
- 1796US7158742B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2005·Granted Jan 2, 2007·17 cites·40 claims
- 1895US7962069B2Toner container, image forming apparatus, method of recycling toner containerRICOH CO LTD·Filed 2005·Granted Jun 14, 2011·19 cites·56 claims
- 1995US6813460B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2003·Granted Nov 2, 2004·34 cites·48 claims
- 2094US7130567B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2004·Granted Oct 31, 2006·30 cites·18 claims
- 2193US5638158AImage formation apparatusRICOH KK·Filed 1995·Granted Jun 10, 1997·85 cites·11 claims
- 2293US5592267AImage forming apparatus using fresh toner and used tonerRICOH KK·Filed 1995·Granted Jan 7, 1997·80 cites·3 claims
- 2392US8385793B2Image forming apparatus preventing gaps between a conveyor belt and transfer sheetRICOH CO LTD·Filed 2010·Granted Feb 26, 2013·8 cites·12 claims
- 2492US7356290B2Toner supply unit and image forming apparatusRICOH KK·Filed 2006·Granted Apr 8, 2008·9 cites·34 claims
- 2592US7209687B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2004·Granted Apr 24, 2007·23 cites·38 claims
- 2690US7542697B2Toner supply unit and image forming apparatusRICOH KK·Filed 2008·Granted Jun 2, 2009·7 cites·20 claims
- 2790US7043182B2Developer regulating member, developing device, electrophotographic image forming process cartridge, and image forming apparatus including the developer regulating memberRICOH KK·Filed 2003·Granted May 9, 2006·35 cites·33 claims
- 2889US7209689B2Toner supply unit and image forming apparatusRICOH KK·Filed 2003·Granted Apr 24, 2007·20 cites·111 claims
- 2988US7817953B2Image recording medium, sheet feeding device, and image forming apparatusRICOH KK·Filed 2007·Granted Oct 19, 2010·11 cites·13 claims
- 3087US8422897B2Image forming apparatusSUZUKI HIROKATSU·Filed 2010·Granted Apr 16, 2013·6 cites·9 claims
- 3186US7110704B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2004·Granted Sep 19, 2006·15 cites·15 claims
- 3283US7162188B2Toner container and image forming apparatus using the sameRICOH KK·Filed 2004·Granted Jan 9, 2007·12 cites·47 claims
- 3383US7088945B2Toner supply unit and image forming apparatusRICOH KK·Filed 2004·Granted Aug 8, 2006·13 cites·60 claims
- 3478US8023877B2Image forming apparatus capable of forming glossy color imageRICOH CO LTD·Filed 2007·Granted Sep 20, 2011·5 cites·17 claims
- 3576US8249468B2Image forming apparatusKUMA KAZUOSA·Filed 2009·Granted Aug 21, 2012·5 cites·15 claims
- 3675US8010005B2Image forming apparatusRICOH CO LTD·Filed 2009·Granted Aug 30, 2011·4 cites·19 claims
- 3775US7587152B2Powder transport device and image forming systemRICOH KK·Filed 2007·Granted Sep 8, 2009·4 cites·20 claims
- 3873US7463853B2Particle supply apparatus, imaging apparatus, and monitoring systemRICOH KK·Filed 2007·Granted Dec 9, 2008·3 cites·37 claims
- 3972US7909081B2Sheet laminator, image forming apparatus, and sheet laminating methodRICOH CO LTD·Filed 2008·Granted Mar 22, 2011·1 cites·19 claims
- 4066US7997320B2Sheet cutter and image forming apparatus including the sheet cutterRICOH CO LTD·Filed 2008·Granted Aug 16, 2011·3 cites·19 claims
- 4166US7883089B2Image forming apparatusRICOH CO LTD·Filed 2007·Granted Feb 8, 2011·3 cites·7 claims
- 4265US8068770B2Toner cartridge, image forming apparatus, method of recycling toner cartridgeKURENUMA TAKEROH·Filed 2010·Granted Nov 29, 2011·1 cites·20 claims
- 4363US7865121B2Image forming apparatus and recording mediumRICOH CO LTD·Filed 2007·Granted Jan 4, 2011·2 cites·9 claims
- 4461US8180246B2Image forming apparatusKAWAHARA SHINICHI·Filed 2009·Granted May 15, 2012·2 cites·10 claims
- 4559US8483598B2Electrophotographic image forming method and apparatus with a cover film supplying deviceENOKI SHIGEKAZU·Filed 2010·Granted Jul 9, 2013·1 cites·17 claims
- 4658US8315545B2Image forming apparatus utilizing both a transfer belt and a direct transfer memberSUDO KAZUHISA·Filed 2009·Granted Nov 20, 2012·2 cites·12 claims
- 4758US7773918B2Imaging apparatus having particle supply and collection apparatus arranged outside imaging apparatusRICOH KK·Filed 2009·Granted Aug 10, 2010·1 cites·20 claims
- 4858US2008185091A1Sheet bonding machine, image forming apparatus including same, and sheet bonding methodRICOH KK·Filed 2008·Application pending·0 cites
- 4958US2009044915A1Sheet bonding machine, image forming apparatus including same, and sheet bonding methodRICOH KK·Filed 2008·Application pending·0 cites
- 5057US2008196832A1Sheet adhering apparatus and sheet adhering methodRICOH KK·Filed 2008·Application pending·0 cites
Showing the top 50 of 61 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →