Inventor
HIKITA TOSHIYA
JP11 patents
⚠️ This page may combine multiple inventors who share the name “HIKITA TOSHIYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
8 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
US5444518AAug 22, 1995
Image forming apparatus which adds identification information to recorded images to prevent forgery
RICOH KK47 citations92
US7692816B2Apr 6, 2010
Image processing apparatus, image processing method, and computer product
RICOH KK9 citations83
US5283664AFeb 1, 1994
Apparatus for converting and processing input bi-level image data and faithfully rendering tones, colors, and edges
RICOH KK18 citations73
US6271938B1Aug 7, 2001
Image processing device
RICOH KK3 citations62