Inventor
SUGIMOTO NAOMI
JP56 patents
⚠️ This page may combine multiple inventors who share the name “SUGIMOTO NAOMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
11 patentsUS6799012B2Sep 28, 2004
Cleaning device and image forming apparatus using the same
RICOH KK72 citations98
US6823163B2Nov 23, 2004
Image forming apparatus including an electric field having an oscillation component between an image carrier and a developer carrier
RICOH KK20 citations93
US6757511B2Jun 29, 2004
Image forming apparatus and method using a magnetic toner brush
RICOH KK40 citations93
US6987944B2Jan 17, 2006
Cleaning device and image forming apparatus using the cleaning device
RICOH KK40 citations92
US5678129AOct 14, 1997
Image forming apparatus with contact type charging member
RICOH KK20 citations91
US5749022AMay 5, 1998
Charging apparatus and method for use in image forming device
RICOH KK36 citations89
US7817954B2Oct 19, 2010
Cleaning unit, image carrier unit including same, and image forming apparatus including same
RICOH KK11 citations84
US7831177B2Nov 9, 2010
Discharge device, image forming unit and apparatus
RICOH KK3 citations63
US7809321B2Oct 5, 2010
Cleaning device, process cartridge and image forming apparatus
RICOH KK5 citations63
US7728503B2Jun 1, 2010
Electron emission element, charging device, process cartridge, and image forming apparatus
RICOH KK4 citations62
US7715760B2May 11, 2010
Charging device, and process cartridge and image forming apparatus using the same
RICOH KK6 citations62
HOZUMI YOSHIKI
11 patentsUS9238552B2Jan 19, 2016
Belt tracking system, roller assembly, and image forming apparatus including same
HOZUMI YOSHIKI11 citations84
US9599934B2Mar 21, 2017
Image forming apparatus having an angle adjuster for a tiltable support roller
HOZUMI YOSHIKI2 citations73
US9561912B2Feb 7, 2017
Belt tracking system, multi-roller assembly and image forming apparatus employing same
HOZUMI YOSHIKI5 citations73
US9033134B2May 19, 2015
Belt tracking system, roller assembly, and image forming apparatus including same
HOZUMI YOSHIKI2 citations62
US8548350B2Oct 1, 2013
Cleaning device and image forming apparatus
HOZUMI YOSHIKI2 citations62
US8433213B2Apr 30, 2013
Cleaning device and image forming apparatus
HOZUMI YOSHIKI3 citations62
US10031463B2Jul 24, 2018
Belt device, belt control device, and image forming apparatus including same
HOZUMI YOSHIKI1 citations52
US9708143B2Jul 18, 2017
Belt device and image forming apparatus including same
HOZUMI YOSHIKI1 citations52
US9541881B2Jan 10, 2017
Recording medium conveying device with a separation support roller and image forming apparatus incorporating the same
HOZUMI YOSHIKI0 citations52
US9376257B2Jun 28, 2016
Belt tracking system, multi-roller assembly and image forming apparatus employing same
HOZUMI YOSHIKI0 citations52
US9104162B2Aug 11, 2015
Conveyor system and image forming apparatus including same
HOZUMI YOSHIKI1 citations52
RICOH CO LTD
9 patentsUS8041281B2Oct 18, 2011
Cleaning device, image forming apparatus, and process cartridge
RICOH CO LTD15 citations84
US8019268B2Sep 13, 2011
Polarity controlling device, and cleaner and image forming apparatus using the polarity controlling device
RICOH CO LTD11 citations84
US7929897B2Apr 19, 2011
Cleaning unit, process cartridge, and image forming apparatus using the same
RICOH CO LTD12 citations84
US7903995B2Mar 8, 2011
Cleaning device, image forming apparatus, and process cartridge
RICOH CO LTD10 citations84
US7873298B2Jan 18, 2011
Cleaning device, process cartridge, and image forming apparatus
RICOH CO LTD10 citations81
USRE47726ENov 12, 2019
Image forming apparatus
RICOH CO LTD0 citations52
US10088781B2Oct 2, 2018
Image forming apparatus and image forming method
RICOH CO LTD0 citations52
US9563153B2Feb 7, 2017
Image forming apparatus and image forming method
RICOH CO LTD0 citations52
US9417565B2Aug 16, 2016
Conveyor system and image forming apparatus including same
RICOH CO LTD0 citations52
SUGIMOTO NAOMI
5 patentsUS8712267B2Apr 29, 2014
Image forming apparatus and image forming method
SUGIMOTO NAOMI7 citations83
US9081335B2Jul 14, 2015
Transfer device with transfer voltage unit and image forming apparatus using the same
SUGIMOTO NAOMI2 citations62
US9335674B2May 10, 2016
Transfer device with transfer voltage unit and image forming apparatus using the same
SUGIMOTO NAOMI0 citations51
US9285723B2Mar 15, 2016
Image forming apparatus and image forming method
SUGIMOTO NAOMI0 citations51
US8983322B2Mar 17, 2015
Image forming apparatus
SUGIMOTO NAOMI1 citations51
NARUSE OSAMU
3 patentsUS8280295B2Oct 2, 2012
Cleaning device, image forming apparatus including the device, and process cartridge including the device
NARUSE OSAMU4 citations61
US8190077B2May 29, 2012
Cleaning device and image forming apparatus
NARUSE OSAMU4 citations60
US8326174B2Dec 4, 2012
Cleaning unit for an electrophotographic image forming apparatus having a polarity control member
NARUSE OSAMU0 citations50
FUJITSU LTD
2 patentsTANAKA SHINYA
2 patentsSUGIURA KENJI
2 patentsUS8948647B2Feb 3, 2015
Belt device and image forming apparatus incorporating same having a cleaning device which cleans utilizing different polarities
SUGIURA KENJI0 citations52
US8731431B2May 20, 2014
Belt device and image forming apparatus incorporating same having a cleaning device which cleans utilizing different polarities
SUGIURA KENJI1 citations52
KIKUCHI HISASHI
1 patentAOKI SHINJI
1 patentSOMEYA YUKIMICHI
1 patentTAWADA TAKAAKI
1 patentTAKAHASHI TOMOKO
1 patentShowing the top 50 of 56 patents by PatentIndex Score.