Inventor
NAGATOMO YUJI
JP32 patents
⚠️ This page may combine multiple inventors who share the name “NAGATOMO YUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
12 patentsUS7676184B2Mar 9, 2010
Developing apparatus
RICOH KK8 citations83
US7822356B2Oct 26, 2010
Image forming apparatus
RICOH KK2 citations62
US7738803B2Jun 15, 2010
Image forming method and apparatus for effectively charging an image carrier
RICOH KK5 citations62
US7725054B2May 25, 2010
Electrifying apparatus, a processing unit, and an image formation apparatus
RICOH KK3 citations62
US7684732B2Mar 23, 2010
Process unit and image forming apparatus including the same
RICOH KK5 citations62
US7664433B2Feb 16, 2010
Cleaning of a charging member in an image forming apparatus
RICOH KK4 citations62
US7792463B2Sep 7, 2010
Image forming apparatus including a brush member to temporarily capture toner
RICOH KK0 citations51
US7751753B2Jul 6, 2010
Cleanerless image forming apparatus
RICOH KK1 citations51
US7693459B2Apr 6, 2010
Charging device for charging a surface of a latent image bearing member and an image forming apparatus including the charging device
RICOH KK0 citations51
US7539442B2May 26, 2009
Charging unit, process unit including the same, and image forming apparatus including the same
RICOH KK1 citations51
US7796912B2Sep 14, 2010
Image forming method and apparatus which uses alternating voltage to form an electric field for moving toner
RICOH KK0 citations41
US7796935B2Sep 14, 2010
Process cartridge and image forming apparatus including same
RICOH KK0 citations41
KONICA MINOLTA BUSINESS TECH
4 patentsUS7734227B2Jun 8, 2010
Developing device and image-forming apparatus using multiple-component developer
KONICA MINOLTA BUSINESS TECH2 citations62
US7233755B2Jun 19, 2007
Image forming apparatus
KONICA MINOLTA BUSINESS TECH4 citations58
US7082277B2Jul 25, 2006
Contact charger and image forming apparatus
KONICA MINOLTA BUSINESS TECH3 citations58
US6999699B2Feb 14, 2006
Contact charger and image forming apparatus
KONICA MINOLTA BUSINESS TECH2 citations58
RICOH CO LTD
3 patentsUS7907871B2Mar 15, 2011
Image forming apparatus
RICOH CO LTD2 citations62
US7903993B2Mar 8, 2011
Image forming apparatus
RICOH CO LTD2 citations62
US8354164B2Jan 15, 2013
Semiconductive member, and developing roll, charging roll, transfer belt, and image forming apparatus using same
RICOH CO LTD1 citations51
NAGATOMO YUJI
2 patentsABE KYOKO
2 patentsUS9335663B2May 10, 2016
Seal, cleaning unit with seal, transfer unit with seal, developing unit with seal, process cartridge with seal, image forming apparatus with seal, and image forming method
ABE KYOKO0 citations45
US9551956B2Jan 24, 2017
Image forming apparatus that utilizes toner roller bias voltages for image density adjustments
ABE KYOKO0 citations35