Maruyama; Eriko

Patent Applications and Registrations

Patent applications and USPTO patent grants for Maruyama; Eriko.The latest application filed is for "image forming apparatus including a developer replenishing device for a two-ingredient type developer".

Company Profile

0.7.7

Maruyama; Eriko - Kanagawa JP
Maruyama; Eriko - Sagamihara JP
MARUYAMA; Eriko - Sagamihara City JP
Maruyama; Eriko - Sagamihara-shi JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Image forming apparatus including a developer replenishing device which uses an air feeding device for a two-ingredient type developer Grant 8,180,261 - Muramatsu , et al. May 15, 2	2012-05-15
Developing device and image forming apparatus using same Grant 7,962,071 - Tsuda , et al. June 14, 2	2011-06-14
Image forming apparatus and process cartridge therefore having a cleaner section which stores unused developer Grant 7,809,322 - Takeuchi , et al. October 5, 2	2010-10-05
Image Forming Apparatus Including A Developer Replenishing Device For A Two-ingredient Type Developer App 20090185832 - Muramatsu; Satoshi ; et al.	2009-07-23
Image forming apparatus including a developer replenishing device for a two-ingredient type developer Grant 7,512,364 - Muramatsu , et al. March 31, 2	2009-03-31
Image Forming Method And Apparatus Having A Unit For Conveying Toner And Carrier Particles From A Cleaning Unit To A Developing Unit App 20090041520 - TAKEUCHI; Nobutaka ; et al.	2009-02-12
Image forming method and apparatus having a unit for conveying toner and carrier particles from a cleaning unit to a developing unit Grant 7,444,107 - Takeuchi , et al. October 28, 2	2008-10-28
Developing Device And Image Forming Apparatus Using Same App 20080181670 - TSUDA; Kiyonori ; et al.	2008-07-31
Method and apparatus for image forming effectively detecting deterioration of developer Grant 7,346,286 - Matsumoto , et al. March 18, 2	2008-03-18
Image forming apparatus including a developer replenishing device for a two-ingredient type developer App 20070009289 - Muramatsu; Satoshi ; et al.	2007-01-11
Image forming apparatus including a developer replenishing device for a two-ingredient type developer Grant 7,127,198 - Muramatsu , et al. October 24, 2	2006-10-24
Method and apparatus for image forming effectively detecting deterioration of developer App 20060008281 - Matsumoto; Junichi ; et al.	2006-01-12
Image forming apparatus, process cartridge, developing unit, and cleaning unit App 20050265759 - Takeuchi, Nobutaka ; et al.	2005-12-01
Image forming apparatus including a developer replenishing device App 20050163537 - Muramatsu, Satoshi ; et al.	2005-07-28

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