Inventor · disambiguated record
Eriko Maruyama
Also filed as: MARUYAMA ERIKO
7 granted patents·111 citations·filing 2004–2009
86Inventor score
Technology areasG03G
Top patents by PatentIndex Score
7 records- 0197US7346286B2Method and apparatus for image forming effectively detecting deterioration of developerRICOH KK·Filed 2005·Granted Mar 18, 2008·37 cites·40 claims
- 0293US7127198B2Image forming apparatus including a developer replenishing device for a two-ingredient type developerRICOH KK·Filed 2004·Granted Oct 24, 2006·38 cites·22 claims
- 0391US7512364B2Image forming apparatus including a developer replenishing device for a two-ingredient type developerRICOH KK·Filed 2006·Granted Mar 31, 2009·10 cites·8 claims
- 0488US7444107B2Image forming method and apparatus having a unit for conveying toner and carrier particles from a cleaning unit to a developing unitRICOH KK·Filed 2005·Granted Oct 28, 2008·9 cites·25 claims
- 0585US7962071B2Developing device and image forming apparatus using sameRICOH CO LTD·Filed 2008·Granted Jun 14, 2011·8 cites·19 claims
- 0684US7809322B2Image forming apparatus and process cartridge therefore having a cleaner section which stores unused developerRICOH KK·Filed 2008·Granted Oct 5, 2010·6 cites·11 claims
- 0773US8180261B2Image forming apparatus including a developer replenishing device which uses an air feeding device for a two-ingredient type developerMURAMATSU SATOSHI·Filed 2009·Granted May 15, 2012·3 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →