Inventor
UKAI TAKESHI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “UKAI TAKESHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
14 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
US5604596AFeb 18, 1997
Copying apparatus having determination unit for special original and for controlling copying and marking based on determination
RICOH KK102 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
US5642199AJun 24, 1997
Copier having a security function
RICOH KK54 citations94
US5444518AAug 22, 1995
Image forming apparatus which adds identification information to recorded images to prevent forgery
RICOH KK47 citations92
US5696365ADec 9, 1997
Bar code recording device for a paper media system
RICOH KK23 citations90
US3952242AApr 20, 1976
Automatic voltage regulator with optical feedback
RICOH KK23 citations82
US7038228B2May 2, 2006
Image forming apparatus with specific document determining module and abnormality detection means
RICOH KK9 citations72
US6025603AFeb 15, 2000
Specific document determining apparatus, image reading apparatus, specific document determining method, and a computer-readable recording medium with a program for execution of the method stored therein image reading apparatus having a specific document
RICOH KK8 citations72
US4509732AApr 9, 1985
Document handling apparatus for producing folded and bound stacks of documents
RICOH KK15 citations69
US6949757B2Sep 27, 2005
Specific document determining apparatus including a microwave sensor
RICOH KK3 citations61
US6696696B1Feb 24, 2004
Image forming apparatus with specific document module having a microwave sensor
RICOH KK0 citations51