Inventor
YOKOKAWA SHUHO
JP25 patents
⚠️ This page may combine multiple inventors who share the name “YOKOKAWA SHUHO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI KOKI KK
16 patentsUS6650864B2Nov 18, 2003
Printing system
HITACHI KOKI KK27 citations92
US6442360B1Aug 27, 2002
Lamp holder, and lamp cartridge using the same and fixing unit using the same
HITACHI KOKI KK33 citations92
US6601951B2Aug 5, 2003
Printers and printing method
HITACHI KOKI KK31 citations91
US5862436AJan 19, 1999
Fixing apparatus and method for electrophotographic apparatus including temperature detecting mechanism for heat roller
HITACHI KOKI KK48 citations91
US6927875B2Aug 9, 2005
Printing system and printing method
HITACHI KOKI KK14 citations84
USD469462SJan 28, 2003
Heater lamp unit for fixing toner in an image forming apparatus
HITACHI KOKI KK7 citations74
US5995130ANov 30, 1999
Laser beam scanning apparatus and method providing controllable print density
HITACHI KOKI KK8 citations74
US6393248B1May 21, 2002
Fixing device of image forming apparatus and fixing roller
HITACHI KOKI KK9 citations73
US5842098ANov 24, 1998
Fixing apparatus and fixing method for electrophotographic apparatus
HITACHI KOKI KK10 citations73
US5805953ASep 8, 1998
Method and apparatus for indicating time for exchanging toner recovery container of electrographic apparatus
HITACHI KOKI KK7 citations73
US5557386ASep 17, 1996
Toner recovering device for electrophotographic apparatus and toner recovering filter for said toner recovering device
HITACHI KOKI KK8 citations73
US5745817AApr 28, 1998
Electrophotographic apparatus and paper detector thereof and paper detecting method thereof
HITACHI KOKI KK7 citations72
US5652949AJul 29, 1997
Preheating controller for a two-stage electrophotographic printing system
HITACHI KOKI KK12 citations72
US5881348AMar 9, 1999
Release agent supplying member, release agent supplying apparatus and fixing apparatus using the same
HITACHI KOKI KK5 citations62
US5802444ASep 1, 1998
Electrophotographic apparatus for a continuous strip of paper sheets fixed by a heat fixing unit
HITACHI KOKI KK5 citations61
US5606403AFeb 25, 1997
Toner supply control system for an electrophotographic apparatus
HITACHI KOKI KK6 citations60
HITACHI LTD
5 patentsUS6104907AAug 15, 2000
Image recording apparatus which prevents variation in speed of a recording medium and reduces shift values thereof
HITACHI LTD22 citations92
US5774777AJun 30, 1998
Continuous recording medium friction-conveying mechanism in image forming apparatus
HITACHI LTD36 citations92
US6496672B2Dec 17, 2002
Image production apparatus
HITACHI LTD14 citations83
US6130408AOct 10, 2000
Recording apparatus with conveyed recording sheet heated by movable heater
HITACHI LTD16 citations83
US6285854B1Sep 4, 2001
Image recording apparatus
HITACHI LTD12 citations73
RICOH PRINTING SYS LTD
4 patentsUS7450883B2Nov 11, 2008
Film loader for an image forming apparatus
RICOH PRINTING SYS LTD5 citations74
US7336917B2Feb 26, 2008
Film loader for an image forming apparatus
RICOH PRINTING SYS LTD7 citations74
US7295794B2Nov 13, 2007
Film loader for an image forming apparatus
RICOH PRINTING SYS LTD3 citations63
US6947698B2Sep 20, 2005
Fixing apparatus of electrophotographic printer
RICOH PRINTING SYS LTD1 citations51