Inventor · disambiguated record
Kumiko Hatakeyama
Also filed as: HATAKEYAMA KUMIKO
18 granted patents·136 citations·filing 2004–2010
93Inventor score
Technology areasG03G
Top patents by PatentIndex Score
18 records- 0196US7315711B2Image forming apparatus, process cartridge and cleaningless systemRICOH KK·Filed 2005·Granted Jan 1, 2008·25 cites·53 claims
- 0292US7218879B2Image forming apparatus controlling polarity of residual toner and process cartridge for use in the sameRICOH KK·Filed 2004·Granted May 15, 2007·39 cites·14 claims
- 0391US7734242B2Protective layer setting unit, process cartridge, and image forming apparatus using sameRICOH KK·Filed 2008·Granted Jun 8, 2010·13 cites·19 claims
- 0488US7583914B2Charge member, charge apparatus, process cartridge, and image forming apparatusRICOH KK·Filed 2006·Granted Sep 1, 2009·10 cites·21 claims
- 0587US7991342B2Protective material and image forming apparatus using the protective materialRICOH CO LTD·Filed 2009·Granted Aug 2, 2011·8 cites·20 claims
- 0685US7826787B2Protective-agent applying device, process cartridge, and image forming apparatusRICOH KK·Filed 2008·Granted Nov 2, 2010·8 cites·9 claims
- 0782US7986910B2Lubricant coater, image bearing unit, and image forming apparatusRICOH CO LTD·Filed 2008·Granted Jul 26, 2011·6 cites·6 claims
- 0877US7639957B2Image forming apparatus including controller to detect condition of image developerRICOH KK·Filed 2007·Granted Dec 29, 2009·5 cites·19 claims
- 0975US8180271B2Protective layer setting unit, process cartridge, and image forming apparatus, and method of evaluating protective layer setting unitHATAKEYAMA KUMIKO·Filed 2008·Granted May 15, 2012·5 cites·7 claims
- 1073US7738829B2Process cartridge including photoconductor pre-coated with protective agent and image forming apparatus using sameRICOH KK·Filed 2008·Granted Jun 15, 2010·4 cites·18 claims
- 1169US7979016B2Image forming apparatus and protective agent blockRICOH CO LTD·Filed 2009·Granted Jul 12, 2011·3 cites·10 claims
- 1263US7693476B2Image forming apparatus with protective agent applying unit and process cartridgeRICOH KK·Filed 2007·Granted Apr 6, 2010·2 cites·18 claims
- 1359US7840152B2Image forming apparatus, process cartridge, cleaning system, and image forming apparatus with cleaning systemRICOH CO LTD·Filed 2009·Granted Nov 23, 2010·1 cites·12 claims
- 1457US7499664B2Image processing apparatus, process cartridge, and cleaning system with residual toner retaining unitRICOH KK·Filed 2004·Granted Mar 3, 2009·5 cites·22 claims
- 1556US8374537B2Image forming apparatus, protectant applicator and process cartridgeRICOH CO LTD·Filed 2009·Granted Feb 12, 2013·1 cites·14 claims
- 1654US8340562B2Image forming apparatus, protective agent and process cartridgeHATAKEYAMA KUMIKO·Filed 2009·Granted Dec 25, 2012·1 cites·15 claims
- 1744US8509670B2Image bearing member to which boron nitride is attachedHATAKEYAMA KUMIKO·Filed 2010·Granted Aug 13, 2013·0 cites·7 claims
- 1844US7991327B2Image forming apparatus and process cartridgeRICOH CO LTD·Filed 2007·Granted Aug 2, 2011·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →