Inventor · disambiguated record
Ryuta Takeichi
Also filed as: TAKEICHI RYUTA
27 granted patents·2 pending applications·1,490 citations·filing 1998–2011
98Inventor score
Technology areasG03G
Top patents by PatentIndex Score
29 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
- 0897US6562529B1Electrophotographic drum-shaped photoconductor and image forming method and apparatus using the sameRICOH KK·Filed 2000·Granted May 13, 2003·85 cites·12 claims
- 0997US6060205AImage forming apparatusRICOH KK·Filed 1999·Granted May 9, 2000·120 cites·61 claims
- 1096US7221887B2Image forming apparatus that recovers waste toner inside thereofRICOH KK·Filed 2005·Granted May 22, 2007·25 cites·7 claims
- 1196US6697595B2Method and apparatus for forming an image with no degradationRICOH KK·Filed 2001·Granted Feb 24, 2004·77 cites·24 claims
- 1296US6558862B2Electrophotographic photoreceptor and image forming apparatus using the photoreceptorRICOH KK·Filed 2001·Granted May 6, 2003·70 cites·30 claims
- 1395US7076192B2Powder conveying device and image forming apparatus using the sameRICOH KK·Filed 2003·Granted Jul 11, 2006·55 cites·16 claims
- 1495US6363237B1Unit for imparting lubricity to electrophotographic photoconductor, electrophotographic image formation apparatus including the unit, and image formation method using the apparatusRICOH KK·Filed 1999·Granted Mar 26, 2002·81 cites·20 claims
- 1594US7398038B2Image forming apparatus using a toner container and a process cartridgeRICOH KK·Filed 2003·Granted Jul 8, 2008·47 cites·23 claims
- 1694US7024133B2Image 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
- 1794US6521386B1Electrophotographic photoreceptor and electrophotographic image forming method and apparatus using the photoreceptorRICOH KK·Filed 2000·Granted Feb 18, 2003·60 cites·18 claims
- 1894US6160977AImage forming apparatus and device for applying a lubricant to an imageRICOH KK·Filed 1999·Granted Dec 12, 2000·72 cites·19 claims
- 1993US7277667B2Endless belt device and image forming apparatus using the deviceRICOH KK·Filed 2005·Granted Oct 2, 2007·15 cites·13 claims
- 2092US6118964AMulti-functional contact-type charging unit and image transfer unitRICOH KK·Filed 1998·Granted Sep 12, 2000·56 cites·12 claims
- 2192US6014532AImage forming apparatusRICOH KK·Filed 1998·Granted Jan 11, 2000·59 cites·6 claims
- 2291US7136610B2Image 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
- 2389US7212767B2Image forming apparatus and process cartridge removably mounted theretoRICOH KK·Filed 2003·Granted May 1, 2007·27 cites·28 claims
- 2485US6706459B2Electrophotographic drum-shaped photoconductor and image forming method and apparatus using the sameRICOH KK·Filed 2003·Granted Mar 16, 2004·22 cites·18 claims
- 2576US8306469B2Cleaning apparatus for removing toner adhered onto endless beltKIMURA YOSHIYUKI·Filed 2008·Granted Nov 6, 2012·4 cites·15 claims
- 2668US7153621B2Electrophotographic photoreceptor and image forming apparatus using the photoreceptorRICOH KK·Filed 2005·Granted Dec 26, 2006·2 cites·33 claims
- 2766US7421239B2Cleaning apparatus for removing toner adhered onto endless beltRICOH KK·Filed 2004·Granted Sep 2, 2008·8 cites·14 claims
- 2848US2007166074A1Image forming apparatus and process cartridge removably mounted theretoHOSOKAWA HIROSHI·Filed 2007·Application pending·0 cites
- 2937US2003152854A1Electrophotographic photoreceptor and image forming apparatus using the photoreceptorFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →