Inventor
YAMAKAWA SHINJI
JP27 patents
⚠️ This page may combine multiple inventors who share the name “YAMAKAWA SHINJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
18 patentsUS5892595AApr 6, 1999
Image reading apparatus for correct positioning of color component values of each picture element
RICOH KK106 citations98
US5751854AMay 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
US5465160ANov 7, 1995
Composite image forming apparatus for automatically combining document and image characters
RICOH KK67 citations95
US5809366ASep 15, 1998
Method and system for calibrating a color copier
RICOH KK118 citations93
US7085013B2Aug 1, 2006
Image processing apparatus including low-linear-density dot region detection unit, and image forming apparatus including the same
RICOH KK16 citations92
US6965695B2Nov 15, 2005
Method and system for processing character edge area data
RICOH KK25 citations92
US6014462AJan 11, 2000
Image processing apparatus and method for distinguishing alphanumeric symbols on a white background and those on a mesh pattern and individually processing such image data
RICOH KK30 citations92
US5862434AJan 19, 1999
Method and apparatus for forming an image on an image transfer medium and a method of forming an image using the image transfer medium
RICOH KK22 citations92
US5444518AAug 22, 1995
Image forming apparatus which adds identification information to recorded images to prevent forgery
RICOH KK47 citations92
US5333211AJul 26, 1994
Image processing apparatus for preventing occurrence of moire in a reconstructed image
RICOH KK31 citations90
US5801844ASep 1, 1998
Image processing apparatus
RICOH KK23 citations89
US7663783B2Feb 16, 2010
Image-processing device processing image data by judging a detected and expanded medium-density field as a non-character edge field
RICOH KK8 citations84
US6655861B2Dec 2, 2003
Image processing apparatus including low-linear-density dot region detection unit, and image forming apparatus including the same
RICOH KK15 citations84
US7139100B2Nov 21, 2006
Image-processing device processing image data by judging a detected and expanded medium-density field as a non-character edge field
RICOH KK5 citations74
US5206718AApr 27, 1993
Color image processor for creating shadows and masks
RICOH KK9 citations74
US5204752AApr 20, 1993
Image processing apparatus having shadow composition capability using binary data thinning and thickening circuits and preset thinning and thickening width data
RICOH KK14 citations74
US5565993AOct 15, 1996
Image processing apparatus for flexibly changing image data using a selective addressing scheme on a memory storing the image data
RICOH KK0 citations42
YAMAKAWA SHINJI
3 patentsUS8917903B2Dec 23, 2014
Image inspection apparatus, image forming apparatus, image inspection method, and image inspection program
YAMAKAWA SHINJI4 citations71
US8810861B2Aug 19, 2014
Image processing apparatus, image noise detecting method, and computer-readable recording medium which averages pixel values of multiple pixels aligned in the sub-scanning direction
YAMAKAWA SHINJI4 citations71
US8538086B2Sep 17, 2013
Image inspection apparatus, image inspection method, and computer program product
YAMAKAWA SHINJI2 citations61
BRIDGESTONE CORP
2 patentsUS11472907B2Oct 18, 2022
Polymerization catalyst composition, polymer manufacturing method, polymer, rubber composition, and tire
BRIDGESTONE CORP2 citations71
US12084536B2Sep 10, 2024
Polybutadiene, method of producing polybutadiene, polybutadiene composition, tire, and resin member
BRIDGESTONE CORP0 citations61