Inventor
KATOH TSUTOMU
JP25 patents
⚠️ This page may combine multiple inventors who share the name “KATOH TSUTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
10 patentsUS5950062ASep 7, 1999
Toner sorting device for separating reusable toner from used toner and image forming apparatus using the same device
RICOH KK84 citations95
US7493061B2Feb 17, 2009
Process cartridge including at least one replaceable member and image forming apparatus
RICOH KK22 citations92
US7274897B2Sep 25, 2007
Image forming method and apparatus with a transfer belt
RICOH KK19 citations92
US7627268B2Dec 1, 2009
Image forming apparatus capable of providing a stable belt movement in a belt unit
RICOH KK10 citations84
US7509073B2Mar 24, 2009
Image forming apparatus and belt unit
RICOH KK19 citations84
US7499665B2Mar 3, 2009
Belt device including an annular belt, and an image forming apparatus for detection of rotational angular speed or rotational angular displacement
RICOH KK11 citations84
US7158730B2Jan 2, 2007
Image forming apparatus, process cartridge, developing unit, and image forming method
RICOH KK6 citations73
US7609998B2Oct 27, 2009
Transfer unit and image forming apparatus
RICOH KK6 citations63
US7522850B2Apr 21, 2009
Image forming apparatus, process cartridge, developing unit, and image forming method
RICOH KK4 citations62
US7302208B2Nov 27, 2007
Unit supporting device and image forming apparatus
RICOH KK6 citations62
CANON KK
4 patentsUS5175565ADec 29, 1992
Ink jet substrate including plural temperature sensors and heaters
CANON KK133 citations98
US6234599B1May 22, 2001
Substrate having a built-in temperature detecting element, and ink jet apparatus having the same
CANON KK53 citations96
US6598952B2Jul 29, 2003
Liquid jet recording head having controller for controlling temperature distribution
CANON KK10 citations74
US6505907B2Jan 14, 2003
Recording apparatus having abnormality determination based on temperature and average ejection duty cycle
CANON KK12 citations74
RICOH CO LTD
4 patentsUS7933546B2Apr 26, 2011
Lubricant applying device and image forming apparatus
RICOH CO LTD11 citations84
US7899386B2Mar 1, 2011
Image forming apparatus and guide therefor capable of reducing toner scattered on recording medium
RICOH CO LTD9 citations84
US7885588B2Feb 8, 2011
Transfer assembly and image forming apparatus including same
RICOH CO LTD6 citations62
US7848692B2Dec 7, 2010
Neutralization unit and image forming apparatus having a neutralization unit for removing electric charge
RICOH CO LTD6 citations62