Inventor
NAKAFUJI ATSUSHI
JP43 patents
⚠️ This page may combine multiple inventors who share the name “NAKAFUJI ATSUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
38 patentsUS6795678B2Sep 21, 2004
Image forming apparatus for fixing a toner image on a sheet or recording medium by use of a belt member
RICOH KK71 citations98
US6542705B2Apr 1, 2003
Electrophotographic heating apparatus, system, and method
RICOH KK143 citations97
US7233762B2Jun 19, 2007
Method of uniformly fixing toner to recording medium in image forming apparatus
RICOH KK52 citations96
US7127202B2Oct 24, 2006
Intermediary transfer apparatus, fixing apparatus and image forming apparatus
RICOH KK56 citations96
US6847792B2Jan 25, 2005
Image forming apparatus having a selectively discharged storage
RICOH KK46 citations96
US6795676B2Sep 21, 2004
Sheet wrapping avoidable fixing apparatus and image forming apparatus
RICOH KK46 citations96
US6559421B1May 6, 2003
Image forming apparatus and fixing device therefor
RICOH KK38 citations96
US7570911B2Aug 4, 2009
Image forming method and apparatus for fixing an image
RICOH KK19 citations93
US7433641B2Oct 7, 2008
Fixing member, fixing device, and image forming apparatus
RICOH KK21 citations93
US7369803B2May 6, 2008
Fixing device and image forming apparatus using the same
RICOH KK27 citations93
US7333760B2Feb 19, 2008
Fixing device with temperature control
RICOH KK31 citations93
US7299003B2Nov 20, 2007
Fixing unit and image forming apparatus providing a quick start-up and reduction in energy consumption
RICOH KK50 citations93
US7254362B2Aug 7, 2007
Fixing device, image forming apparatus using the fixing device, and heat insulating member
RICOH KK38 citations93
US7177580B2Feb 13, 2007
Image forming method and apparatus for fixing an image
RICOH KK36 citations93
US7139520B2Nov 21, 2006
Fixing device, nipping device, and image forming apparatus
RICOH KK34 citations93
US7058330B2Jun 6, 2006
Image forming apparatus
RICOH KK18 citations93
US7010257B2Mar 7, 2006
Method of fixing toner on recording medium
RICOH KK26 citations93
US6957036B2Oct 18, 2005
Fixing member, fixing device, and image forming apparatus
RICOH KK32 citations93
US6941088B2Sep 6, 2005
Fixing device, image forming apparatus, method
RICOH KK37 citations93
US6646227B2Nov 11, 2003
Image forming apparatus and fixing device therefor
RICOH KK30 citations93
US6636718B2Oct 21, 2003
Heating roller, method of producing the heating roller, and heating device, fixing device and image forming apparatus using the heating roller
RICOH KK37 citations93
US6631253B2Oct 7, 2003
Fixing device and image forming apparatus using the same
RICOH KK49 citations93
US7526242B2Apr 28, 2009
Transferring apparatus and image forming apparatus
RICOH KK33 citations92
US7269384B2Sep 11, 2007
Transfer-fixing unit with a surface layer of predefined hardness for use in an image forming apparatus
RICOH KK39 citations92
US7010255B2Mar 7, 2006
Fixing device having a heating member and image forming apparatus including the same
RICOH KK50 citations92
US7790343B2Sep 7, 2010
Process, toner, process cartridge and apparatus for developing a toner image
RICOH KK8 citations84
US7738827B2Jun 15, 2010
Image forming apparatus with toner image fixing unit, and the fixing method thereof
RICOH KK10 citations84
US7711300B2May 4, 2010
Image forming apparatus
RICOH KK11 citations84
US7711301B2May 4, 2010
Image transfer device for image forming apparatus
RICOH KK13 citations84
US7693471B2Apr 6, 2010
Sheet wrapping avoidable fixing apparatus and image forming apparatus
RICOH KK9 citations84
US7643767B2Jan 5, 2010
Transfer-fixing unit and image forming apparatus for enhanced image quality
RICOH KK13 citations84
US7551882B2Jun 23, 2009
Image forming apparatus equipping improved transfer fixing apparatus
RICOH KK16 citations84
US7346305B2Mar 18, 2008
Sheet wrapping avoidable fixing apparatus and image forming apparatus
RICOH KK6 citations74
US7251429B2Jul 31, 2007
Image forming apparatus with an energy storage that can be discharged, and with a display of residual energy in the storage
RICOH KK7 citations74
US7224928B2May 29, 2007
Sheet wrapping avoidable fixing apparatus and image forming apparatus
RICOH KK6 citations74
US7107681B2Sep 19, 2006
Heating roller, method of producing the heating roller, and heating device, fixing device and image forming apparatus using the heating roller
RICOH KK9 citations74
US6897409B2May 24, 2005
Image forming apparatus and fixing device therefor
RICOH KK7 citations74
US7613419B2Nov 3, 2009
Image forming apparatus and image forming method characterized by a particular nip time
RICOH KK4 citations63