Inventor
OMI KYOJI
JP21 patents
Patents
21 patentsUS5751854AMay 12, 1998
Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system
RICOH KK181 citations98
US6272248B1Aug 7, 2001
Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system
RICOH KK113 citations97
US5659628AAug 19, 1997
Special-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating function
RICOH KK93 citations96
US5652803AJul 29, 1997
Special-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating function
RICOH KK56 citations96
US5600445AFeb 4, 1997
Modular copying system using light wave, electric wave, or sonic wave interconnections
RICOH KK49 citations96
US5646749AJul 8, 1997
Color image forming apparatus
RICOH KK20 citations92
US5517409AMay 14, 1996
Image forming apparatus and method having efficient translation function
RICOH KK54 citations92
US5132787AJul 21, 1992
Digital color copying machine with color separation
RICOH KK23 citations92
US4009957AMar 1, 1977
Copy paper feed system
RICOH KK47 citations92
US5838456ANov 17, 1998
Desktop color copier which includes a revolving type developing device
RICOH KK33 citations91
US3977666AAug 31, 1976
Apparatus for selectively feeding sheets from a plurality of cassettes
RICOH KK50 citations91
US5087968AFeb 11, 1992
Digital color copier with color separation processing
RICOH KK10 citations74
US5003382AMar 26, 1991
Digital color copying machine
RICOH KK12 citations74
US4837614AJun 6, 1989
Color image processing method
RICOH KK19 citations74
US4600266AJul 15, 1986
Light beam scanning apparatus with a variable scanning width
RICOH KK13 citations74
US4475805AOct 9, 1984
Electrophotographic copying apparatus
RICOH KK13 citations74
USRE38164EJul 1, 2003
Desktop color copier which includes a revolving type developing device
RICOH KK9 citations72
US6049396AApr 11, 2000
Desktop color copier which includes a revolving type developing device
RICOH KK10 citations72
US4350750ASep 21, 1982
Electrophotographic process
RICOH KK10 citations71
USRE40644EMar 3, 2009
Modular copying system using light wave, electric wave, or sonic wave interconnections
RICOH KK2 citations63
USRE40435EJul 15, 2008
Modular copying system using light wave, electric wave, or sonic wave interconnections
RICOH KK0 citations52