Inventor
AMITA AKIYASU
JP47 patents
⚠️ This page may combine multiple inventors who share the name “AMITA AKIYASU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
20 patentsUS6813464B2Nov 2, 2004
Fixing device with a peeler and biasing devices and image forming apparatus including the same
RICOH KK94 citations98
US7609988B2Oct 27, 2009
Heater, fixing unit and image forming apparatus having power supplied from chargeable auxiliary power supplying unit varied per unit time
RICOH KK38 citations96
US7054570B2May 30, 2006
Image-forming apparatus
RICOH KK59 citations96
US7603049B2Oct 13, 2009
Image formation apparatus and associated method of storing power
RICOH KK34 citations93
US7496309B2Feb 24, 2009
Image forming apparatus with auxiliary power source
RICOH KK26 citations93
US7373094B2May 13, 2008
Fixing unit having a plurality of heaters, image forming apparatus and method of determining temperature detecting position of temperature sensor
RICOH KK27 citations93
US7239821B2Jul 3, 2007
Image forming apparatus including a heating unit
RICOH KK38 citations93
US7212758B2May 1, 2007
Image-forming apparatus
RICOH KK27 citations93
US7212759B2May 1, 2007
Heating device, fixing device and image forming apparatus
RICOH KK36 citations93
US7209675B2Apr 24, 2007
Image forming apparatus
RICOH KK36 citations93
US7130555B2Oct 31, 2006
Fixing unit having a plurality of heaters, image forming apparatus and method of determining temperature detecting position of temperature sensor
RICOH KK41 citations93
US7116923B2Oct 3, 2006
Fuser provided with auxiliary power supply device to operate with varying power
RICOH KK47 citations93
US7565087B2Jul 21, 2009
Fixing device, image forming apparatus including the fixing device, and fixing method
RICOH KK32 citations92
US7551869B2Jun 23, 2009
Fixing device, image forming apparatus including the fixing device, and fixing method
RICOH KK31 citations92
US7515845B2Apr 7, 2009
Method for supplying power, and fixing and image forming apparatuses
RICOH KK26 citations92
US7366432B2Apr 29, 2008
Fixing device for fixing an image, image forming apparatus including the fixing device, and fixing method
RICOH KK30 citations92
US7356270B2Apr 8, 2008
Fixing device, image forming apparatus including the fixing device, and fixing method
RICOH KK27 citations92
US7343113B2Mar 11, 2008
Fixing device, image forming apparatus including the fixing device, and fixing method
RICOH KK35 citations92
US7333743B2Feb 19, 2008
Fixing device, image forming apparatus including the fixing device, and fixing method
RICOH KK37 citations92
US7308216B2Dec 11, 2007
Image forming apparatus and method to supply power to a fixing device
RICOH KK38 citations92
KUNII HIROYUKI
6 patentsUS8892015B2Nov 18, 2014
Fixing device and image forming apparatus incorporating same
KUNII HIROYUKI4 citations73
US8655253B2Feb 18, 2014
Glossing device and image forming apparatus incorporating same
KUNII HIROYUKI4 citations73
US8331839B2Dec 11, 2012
Gloss applicator and image forming apparatus
KUNII HIROYUKI5 citations62
US8849172B2Sep 30, 2014
Glossing device, fixing device, and image forming apparatus incorporating same
KUNII HIROYUKI1 citations52
US8724178B2May 13, 2014
Image forming apparatus
KUNII HIROYUKI1 citations51
US8688021B2Apr 1, 2014
Glossing device, fixing device, and image forming apparatus incorporating same
KUNII HIROYUKI0 citations41
AMITA AKIYASU
6 patentsUS11550246B2Jan 10, 2023
Image forming apparatus
AMITA AKIYASU0 citations60
US12326680B2Jun 10, 2025
Fixing device and image forming apparatus incorporating the same
AMITA AKIYASU0 citations50
US9229412B2Jan 5, 2016
Gloss applier and image forming apparatus incorporating same
AMITA AKIYASU0 citations40
US9046841B2Jun 2, 2015
Gloss applicator and image forming apparatus including same
AMITA AKIYASU0 citations40
US8755730B2Jun 17, 2014
Glossing device and image forming apparatus incorporating same
AMITA AKIYASU0 citations40
US8401452B2Mar 19, 2013
Fixing device with gloss control unit and image forming apparatus
AMITA AKIYASU0 citations40
RICOH CO LTD
5 patentsUS7957663B2Jun 7, 2011
Heater, fixing unit and image forming apparatus
RICOH CO LTD23 citations93
US7925177B2Apr 12, 2011
Image fixing apparatus stably controlling a fixing temperature, and image forming apparatus using the same
RICOH CO LTD37 citations93
US7885569B2Feb 8, 2011
Heater, fixing unit and image forming apparatus operable with a main and auxiliary power supply unit
RICOH CO LTD26 citations93
US11150583B2Oct 19, 2021
Belt device and image forming apparatus incorporating same
RICOH CO LTD0 citations51
US11099506B2Aug 24, 2021
Sheet conveying device, fixing device incorporating the sheet conveying device, and image forming apparatus incorporating the sheet conveying device
RICOH CO LTD0 citations51
SHIMADA HIROYUKI
3 patentsUS9195201B2Nov 24, 2015
Gloss applicator and image forming apparatus including the gloss applicator
SHIMADA HIROYUKI0 citations52
US9213295B2Dec 15, 2015
Glossing device and image forming apparatus incorporating same
SHIMADA HIROYUKI0 citations41
US8913941B2Dec 16, 2014
Gloss applicator and image forming apparatus including same
SHIMADA HIROYUKI0 citations41