P

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 patents
US5815605ASep 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

TAMAGAWA SEIKI CO LTD

2 patents

NGK SPARK PLUG CO

2 patents

JAPAN AVIATION ELECTRON

1 patent

KOIKE KAZUMASA

1 patent

AKO AKIRA

1 patent