Inventor
HIRAOKA CHIKARA
JP24 patents
⚠️ This page may combine multiple inventors who share the name “HIRAOKA CHIKARA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH PRINTING SYS LTD
7 patentsUS7298981B2Nov 20, 2007
Fixing device and image forming apparatus with guide having adjustable biasing angle
RICOH PRINTING SYS LTD23 citations92
US7142803B2Nov 28, 2006
Fixing device and image forming apparatus
RICOH PRINTING SYS LTD20 citations89
US7167670B2Jan 23, 2007
Electro-photographic apparatus with a heating roller and pressurizing member
RICOH PRINTING SYS LTD14 citations83
US6928257B2Aug 9, 2005
Image forming and recording apparatus with three pressure members
RICOH PRINTING SYS LTD16 citations82
US7406287B2Jul 29, 2008
Fixing device and image forming apparatus provided with fixing device
RICOH PRINTING SYS LTD8 citations71
US7477867B2Jan 13, 2009
Fixing device having cleaner and temperature detector
RICOH PRINTING SYS LTD4 citations62
US7231158B2Jun 12, 2007
Image forming apparatus having a fixing device with improved temperature detection features
RICOH PRINTING SYS LTD4 citations62
HITACHI LTD
6 patentsUS5499087AMar 12, 1996
Heat fixing device and electrophotographic apparatus incorporating the same having a PTC heating element received in a recess of a holder
HITACHI LTD88 citations96
US5778294AJul 7, 1998
Electrophotographic apparatus and belt fixing device with non-uniform nip pressure
HITACHI LTD59 citations95
US6094549AJul 25, 2000
Electrograph apparatus enabling removal of offensive substances
HITACHI LTD55 citations94
US6130408AOct 10, 2000
Recording apparatus with conveyed recording sheet heated by movable heater
HITACHI LTD16 citations83
US6400923B1Jun 4, 2002
Fixing device improved in offset-prevention
HITACHI LTD8 citations69
US6661994B2Dec 9, 2003
Electrophotographic image forming system
HITACHI LTD6 citations61
HIRAOKA CHIKARA
4 patentsUS8131197B2Mar 6, 2012
Fixing device and electro photographic apparatus using the same
HIRAOKA CHIKARA21 citations91
US8073375B2Dec 6, 2011
Fixing unit and image forming apparatus having the same
HIRAOKA CHIKARA8 citations83
US9201394B2Dec 1, 2015
Image forming apparatus and air flow path therein
HIRAOKA CHIKARA3 citations62
US8204421B2Jun 19, 2012
Fusing apparatus and image forming apparatus
HIRAOKA CHIKARA4 citations61
SAKAYA KOHTA
2 patentsUS8874021B2Oct 28, 2014
Media guide mechanism, fixing device and image forming apparatus incorporating same
SAKAYA KOHTA1 citations51
US8699929B2Apr 15, 2014
Guide device with mechanism capable of minimizing damage to toner image and recording medium and fixing device and image forming apparatus incorporating same
SAKAYA KOHTA1 citations51