Inventor
OKAMOTO MASAMI
JP62 patents
⚠️ This page may combine multiple inventors who share the name “OKAMOTO MASAMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
25 patentsUS7609988B2Oct 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
US7212759B2May 1, 2007
Heating device, fixing device and image forming apparatus
RICOH KK36 citations93
US7212758B2May 1, 2007
Image-forming apparatus
RICOH KK27 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
US6411795B2Jun 25, 2002
Image forming apparatus with a two-sides image forming operation
RICOH KK33 citations93
US6394446B1May 28, 2002
Reverse feeding device
RICOH KK35 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
US7683297B2Mar 23, 2010
Electric power supply control device, heating device and fixing device
RICOH KK11 citations84
US7359653B2Apr 15, 2008
Fixing device, image forming apparatus including the fixing device, and fixing method
RICOH KK14 citations84
US6239864B1May 29, 2001
Image forming apparatus with a paper positioning device
RICOH KK19 citations84
US7463841B2Dec 9, 2008
Heating device, fuser device, and image forming apparatus including power supply devices for supplying power to a heating unit
RICOH KK4 citations63
RICOH CO LTD
6 patentsUS7957663B2Jun 7, 2011
Heater, fixing unit and image forming apparatus
RICOH CO LTD23 citations93
US7885569B2Feb 8, 2011
Heater, fixing unit and image forming apparatus operable with a main and auxiliary power supply unit
RICOH CO LTD26 citations93
US8027627B2Sep 27, 2011
Fixing device and image forming apparatus with improved mechanism for stably applying oil for fixing
RICOH CO LTD7 citations83
US8023850B2Sep 20, 2011
Image forming apparatus capable of stably applying oil for fixing
RICOH CO LTD5 citations61
US10481530B2Nov 19, 2019
Separation member, separation device, fixing device, and image forming apparatus
RICOH CO LTD0 citations51
US10394169B2Aug 27, 2019
Fixing device and image forming apparatus
RICOH CO LTD0 citations51
HIROSE FUMIHIRO
3 patentsUS9268276B2Feb 23, 2016
Fixing device and image forming apparatus that include a separator disposed downstream from a fixing nip
HIROSE FUMIHIRO2 citations61
US9519249B2Dec 13, 2016
Fixing device and image forming apparatus
HIROSE FUMIHIRO0 citations51
US9389560B2Jul 12, 2016
Fixing device including a separator to separate a recording medium from a pressure rotator and image forming apparatus including the fixing device
HIROSE FUMIHIRO1 citations51
UNITIKA LTD
2 patentsUS7173080B2Feb 6, 2007
Biodegradable resin composition for molding and object molded or formed from the same
UNITIKA LTD65 citations94
US7449510B2Nov 11, 2008
Biodegradable polyester resin composition, process for producing the same and foamed article and molded article using the same
UNITIKA LTD27 citations90
TEIJIN SEIKI CO LTD
2 patentsFUJI PHOTO FILM CO LTD
2 patentsNOZAWA KENJI
2 patentsOKAMOTO MASAMI
2 patentsTEIJIN CHEMICALS LTD
1 patentAISIN TAKAOKA LTD
1 patentTOSHIBA KK
1 patentKIKUSHIMA YUUKI
1 patentTOYO BOSEKI
1 patentTOYODA CHUO KENKYUSHO KK
1 patentShowing the top 50 of 62 patents by PatentIndex Score.