Inventor
SUMIDA HIROYASU
JP12 patents
⚠️ This page may combine multiple inventors who share the name “SUMIDA HIROYASU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
11 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
US5383754AJan 24, 1995
Image forming apparatus having an image orientation identifying device and a binding device
RICOH KK158 citations97
US5987227ANov 16, 1999
Image forming apparatus and method for detecting and eliminating avoidable image reading operations
RICOH KK75 citations95
US4980725ADec 25, 1990
Background accenuating image forming apparatus
RICOH KK26 citations92
US6226102B1May 1, 2001
Image forming apparatus which forms an image based on stored image data
RICOH KK38 citations90
US5550623AAug 27, 1996
Digital copying machine having selective paper feed based on copy productivity
RICOH KK35 citations90
US5877864AMar 2, 1999
Image forming apparatus which determines if memory will overflow before reading an image to store in the memory
RICOH KK20 citations83
US5049932ASep 17, 1991
Copier having an editing function
RICOH KK10 citations73
US4881101ANov 14, 1989
Device for setting operation modes of office equipment
RICOH KK7 citations73
US4851878AJul 25, 1989
Copy information output device for a copier
RICOH KK11 citations73