Inventor
KOIKE KAZUMASA
JP20 patents
⚠️ This page may combine multiple inventors who share the name “KOIKE KAZUMASA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
13 patentsUS5815605ASep 29, 1998
Image processing system and method
RICOH KK29 citations92
US5572603ANov 5, 1996
Image processing method and device using such method
RICOH KK39 citations92
US5550647AAug 27, 1996
Image processing apparatus for converting a multilevel image signal into a bi-level image signal
RICOH KK33 citations92
US5452107ASep 19, 1995
Image processing apparatus providing a bilevel image signal by changing binarization threshold value based on densities of original image areas incuding target pixel and less than all surrounding pixels
RICOH KK23 citations92
US5408338AApr 18, 1995
Image processing unit processing pixel data according to scan line density
RICOH KK50 citations92
US5386301AJan 31, 1995
Apparatus for producing a bilevel image suitable for a printing characteristic of a printing unit
RICOH KK20 citations92
US5243445ASep 7, 1993
Picture processing apparatus
RICOH KK27 citations92
US5231519AJul 27, 1993
Image processor which converts image with poor resolution into image with improved resolution
RICOH KK36 citations92
US5706096AJan 6, 1998
Optimum line density determining method and system
RICOH KK18 citations84
US5724158AMar 3, 1998
Image processing apparatus for selectively using MTF correction process for different regions of a composite image
RICOH KK15 citations73
US7295714B2Nov 13, 2007
Image processing circuit and image processing method that prevent problems occurring in image reduction
RICOH KK4 citations62
US7734198B2Jun 8, 2010
Image forming apparatus and wireless communication device
RICOH KK3 citations59
US7110133B2Sep 19, 2006
Communication apparatus and image communication method
RICOH KK0 citations51