Inventor
ABUYAMA YASUO
JP23 patents
⚠️ This page may combine multiple inventors who share the name “ABUYAMA YASUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
21 patentsUS5144452ASep 1, 1992
Image forming apparatus in which is calculated the number of images at a given magnification to duplicate repeatedly on a given size recording medium without interference
TOSHIBA KK91 citations96
US5510908AApr 23, 1996
Image reading device for removing the background of a scanned original document
TOSHIBA KK27 citations92
US4711556ADec 8, 1987
Copying machine with an interrupt function
TOSHIBA KK27 citations92
US4579443AApr 1, 1986
Image-forming apparatus
TOSHIBA KK52 citations92
US4678316AJul 7, 1987
Image forming apparatus adapted to enter an interrupt copying mode and an energy saving mode
TOSHIBA KK24 citations82
US4931837AJun 5, 1990
Removable developing unit for an electrostatic copier and locking device therefor
TOSHIBA KK15 citations81
US5083216AJan 21, 1992
Image forming apparatus for forming an image according to magnification
TOSHIBA KK11 citations74
US4888650ADec 19, 1989
Image forming apparatus with function of auto error correction for optical system
TOSHIBA KK8 citations74
US4743963AMay 10, 1988
Apparatus for magnifying or reducing a color image in which sequentially-stored RGB data are selectively read out from a memory in accordance with previously-determined read control data
TOSHIBA KK18 citations74
US4674862AJun 23, 1987
Image-forming apparatus with a document-feeding device
TOSHIBA KK10 citations74
US4627713ADec 9, 1986
Copying machine
TOSHIBA KK8 citations74
US4568173AFeb 4, 1986
Image forming apparatus
TOSHIBA KK12 citations74
US6786401B2Sep 7, 2004
Passing examination system & passing examination method
TOSHIBA KK10 citations73
US4875092AOct 17, 1989
Image forming apparatus with positioning-mark forming function
TOSHIBA KK12 citations73
US4857954AAug 15, 1989
Image forming apparatus
TOSHIBA KK4 citations72
US4814823AMar 21, 1989
Image forming apparatus
TOSHIBA KK6 citations72
US5127086AJun 30, 1992
Image forming apparatus
TOSHIBA KK2 citations63
US4557585ADec 10, 1985
Return speed control system for use in a document scanning apparatus
TOSHIBA KK3 citations63
US4831462AMay 16, 1989
Image forming apparatus with halftone control function
TOSHIBA KK5 citations62
US5153646AOct 6, 1992
Image forming apparatus with removable developing means
TOSHIBA KK4 citations61
US4956673ASep 11, 1990
Image forming apparatus with easily removable developing units
TOSHIBA KK3 citations61