Inventor · disambiguated record
Kiyonori Tsuda
Also filed as: TSUDA KIYONORI
66 granted patents·3 pending applications·2,468 citations·filing 1995–2020
99Inventor score
Top patents by PatentIndex Score
69 records- 0199US8195070B2Developer container, developer supplying device, and image forming apparatusHOSOKAWA HIROSHI·Filed 2011·Granted Jun 5, 2012·47 cites·12 claims
- 0299US8005406B2Developer container, developer supplying device, and image forming apparatusRICOH CO LTD·Filed 2010·Granted Aug 23, 2011·60 cites·18 claims
- 0399US7835673B2Developer container, developer supplying device, and image forming apparatusRICOH CO LTD·Filed 2008·Granted Nov 16, 2010·58 cites·28 claims
- 0499US7697870B2Developer container, developer supplying device, and image forming apparatusRICOH KK·Filed 2009·Granted Apr 13, 2010·54 cites·26 claims
- 0599US7519317B2Developer container, developer supplying device, and image forming apparatusRICOH KK·Filed 2007·Granted Apr 14, 2009·72 cites·25 claims
- 0699US7480476B2Developer container, developer supplying device, and image forming apparatusRICOH KK·Filed 2007·Granted Jan 20, 2009·115 cites·20 claims
- 0799US7321744B2Developer container, developer supplying device, and image forming apparatusRICOH KK·Filed 2004·Granted Jan 22, 2008·111 cites·49 claims
- 0899US7072602B2Image forming apparatus and image forming unitRICOH KK·Filed 2004·Granted Jul 4, 2006·122 cites·20 claims
- 0999US6522855B1Image forming apparatus and developing apparatus preventing uneven image densityRICOH KK·Filed 2000·Granted Feb 18, 2003·161 cites·38 claims
- 1099US6337957B1Image forming apparatus and developing device with improved self toner density controlRICOH KK·Filed 2000·Granted Jan 8, 2002·191 cites·76 claims
- 1198US7577379B2Toner container, toner supply device and image forming apparatusRICOH KK·Filed 2007·Granted Aug 18, 2009·42 cites·9 claims
- 1298US7184691B2Toner container, toner supply device and image forming apparatusRICOH KK·Filed 2005·Granted Feb 27, 2007·81 cites·27 claims
- 1398US6198895B1Developing device with improved developer circulation and toner density controlRICOH KK·Filed 2000·Granted Mar 6, 2001·133 cites·29 claims
- 1497US7447469B2Image forming device and mounting member for mounting a toner container thereonRICOH KK·Filed 2005·Granted Nov 4, 2008·36 cites·49 claims
- 1597US6125243AToner replenishing and developer replacing device for a developing unit of an image forming apparatusRICOH KK·Filed 1998·Granted Sep 26, 2000·106 cites·4 claims
- 1697US5915155AToner replenishing and developer replacing device for a developing unit of an image forming apparatusRICOH KK·Filed 1996·Granted Jun 22, 1999·110 cites·16 claims
- 1796US7162189B2Method and apparatus of image forming and process cartridge included in the apparatusRICOH KK·Filed 2004·Granted Jan 9, 2007·53 cites·43 claims
- 1896USD532037SToner cartridgeRICOH KK·Filed 2005·Granted Nov 14, 2006·84 cites·1 claims
- 1995US7962069B2Toner container, image forming apparatus, method of recycling toner containerRICOH CO LTD·Filed 2005·Granted Jun 14, 2011·19 cites·56 claims
- 2095US7076192B2Powder conveying device and image forming apparatus using the sameRICOH KK·Filed 2003·Granted Jul 11, 2006·55 cites·16 claims
- 2195US5805965ADeveloping device for an image forming apparatus having developer distribution featuresRICOH KK·Filed 1996·Granted Sep 8, 1998·83 cites·41 claims
- 2294US7398038B2Image forming apparatus using a toner container and a process cartridgeRICOH KK·Filed 2003·Granted Jul 8, 2008·47 cites·23 claims
- 2394US7146122B2Image forming apparatus and image forming unitRICOH KK·Filed 2006·Granted Dec 5, 2006·15 cites·6 claims
- 2494US7024133B2Image forming apparatus using a user installable process cartridge, a method of arranging the process cartridge, and the process cartridge itselfRICOH KK·Filed 2003·Granted Apr 4, 2006·50 cites·51 claims
- 2594US5659860ADeveloping device for an image forming apparatus and toner cartridgeRICOH KK·Filed 1995·Granted Aug 19, 1997·84 cites·20 claims
- 2693US9176425B2Developer replenishing device to transport developer from developer container, image forming apparatus including same, and conveyance device to transport powder or fluid from containerTAKAMI NOBUO·Filed 2014·Granted Nov 3, 2015·8 cites·15 claims
- 2793US5771426ADeveloping device using a toner and carrier mixtureRICOH KK·Filed 1996·Granted Jun 23, 1998·67 cites·40 claims
- 2892US7315715B2Apparatus, method, and program for image formingRICOH KK·Filed 2005·Granted Jan 1, 2008·16 cites·23 claims
- 2991US7136610B2Image forming apparatus using installable process cartridge, method of positioning process cartridge, and process cartridge itselfRICOH KK·Filed 2004·Granted Nov 14, 2006·38 cites·18 claims
- 3091US5758241ADeveloping device for an image forming apparatusRICOH KK·Filed 1996·Granted May 26, 1998·56 cites·25 claims
- 3190US5822664ADeveloping machine which uses a developing agent including a toner and magnetic particlesRICOH KK·Filed 1995·Granted Oct 13, 1998·51 cites·12 claims
- 3289US7212767B2Image forming apparatus and process cartridge removably mounted theretoRICOH KK·Filed 2003·Granted May 1, 2007·27 cites·28 claims
- 3387US7062207B2Powder transport apparatus and image forming apparatus that can stabilize replenishment of powderRICOH KK·Filed 2004·Granted Jun 13, 2006·26 cites·24 claims
- 3487US5771429ADeveloping device capable of automatic toner content controlRICOH KK·Filed 1996·Granted Jun 23, 1998·42 cites·30 claims
- 3586US10635043B2Powder container and image forming apparatusRICOH CO LTD·Filed 2019·Granted Apr 28, 2020·1 cites·19 claims
- 3685US10394186B2Powder container and image forming apparatusTAKAMI NOBUO·Filed 2018·Granted Aug 27, 2019·1 cites·10 claims
- 3785US7962071B2Developing device and image forming apparatus using sameRICOH CO LTD·Filed 2008·Granted Jun 14, 2011·8 cites·19 claims
- 3885US7937027B2Developing device and image forming apparatusRICOH CO LTD·Filed 2008·Granted May 3, 2011·8 cites·15 claims
- 3984US10203650B2Powder container and image forming apparatusTAKAMI NOBUO·Filed 2018·Granted Feb 12, 2019·1 cites·6 claims
- 4084US8036575B2Development device, image forming apparatus, and process cartridge having compact structure for discharging developerRICOH CO LTD·Filed 2008·Granted Oct 11, 2011·7 cites·18 claims
- 4184US7486916B2Method and apparatus of image forming and process cartridge included in the apparatusRICOH KK·Filed 2006·Granted Feb 3, 2009·6 cites·27 claims
- 4283US10852689B2Powder container and image forming apparatusRICOH CO LTD·Filed 2020·Granted Dec 1, 2020·1 cites·9 claims
- 4383USD531662SToner cartridgeRICOH KK·Filed 2005·Granted Nov 7, 2006·30 cites·1 claims
- 4482US8843019B2Development device and image forming apparatus incorporating sameYOSHIZAWA HIDEO·Filed 2012·Granted Sep 23, 2014·3 cites·15 claims
- 4580US8923726B2Image forming apparatus incorporating developing device with first and second sealsTSUDA KIYONORI·Filed 2012·Granted Dec 30, 2014·3 cites·14 claims
- 4679US8145101B2Developing device, image forming apparatus and process cartridge in which a shock is applied intermittently to the discharged developerTERAI JUNICHI·Filed 2008·Granted Mar 27, 2012·6 cites·12 claims
- 4778US10048644B2Powder container and image forming apparatusTAKAMI NOBUO·Filed 2015·Granted Aug 14, 2018·1 cites·23 claims
- 4877US7890028B2Developing device and image forming apparatus comprising the sameRICOH CO LTD·Filed 2007·Granted Feb 15, 2011·5 cites·12 claims
- 4976US8843015B2Imaging device, image forming apparatus, and process cartridgeUTSUNOMIYA KOHICHI·Filed 2012·Granted Sep 23, 2014·2 cites·19 claims
- 5076US7826776B2Development apparatus and image forming apparatus employing the sameRICOH KK·Filed 2006·Granted Nov 2, 2010·5 cites·13 claims
Showing the top 50 of 69 patent records by PatentIndex Score.
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