Inventor
HIROTA YOSHIHIKO
JP59 patents
⚠️ This page may combine multiple inventors who share the name “HIROTA YOSHIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MINOLTA CO LTD
27 patentsUS6215512B1Apr 10, 2001
Image forming apparatus with image distortion correction system
MINOLTA CO LTD83 citations98
US7079685B1Jul 18, 2006
Method and apparatus for image processing, including processing for reproducing black character areas of color and monochromatic images
MINOLTA CO LTD56 citations96
US6625331B1Sep 23, 2003
Image forming apparatus
MINOLTA CO LTD48 citations96
US6441915B1Aug 27, 2002
Image forming apparatus
MINOLTA CO LTD54 citations96
US6118895ASep 12, 2000
Image forming apparatus for distinguishing between types of color and monochromatic documents
MINOLTA CO LTD68 citations96
US6978045B1Dec 20, 2005
Image-processing apparatus
MINOLTA CO LTD20 citations93
US6631207B2Oct 7, 2003
Image processor including processing for image data between edge or boundary portions of image data
MINOLTA CO LTD47 citations93
US6559976B1May 6, 2003
Color image processor
MINOLTA CO LTD32 citations93
US5867285AFeb 2, 1999
Image processor
MINOLTA CO LTD29 citations93
US5850293ADec 15, 1998
Image processor having a discriminator for discriminating an inside area and an outside area
MINOLTA CO LTD51 citations93
US7251055B2Jul 31, 2007
Image forming apparatus having a function for correcting color deviation and the like
MINOLTA CO LTD28 citations92
US7177462B2Feb 13, 2007
Image processing apparatus, image forming apparatus and color image determination method thereof
MINOLTA CO LTD16 citations92
US7072506B1Jul 4, 2006
Image processing apparatus image forming apparatus and color image determination method thereof
MINOLTA CO LTD32 citations92
US6417932B1Jul 9, 2002
Image processor
MINOLTA CO LTD16 citations92
US6323959B1Nov 27, 2001
Color image processor
MINOLTA CO LTD50 citations92
US6198841B1Mar 6, 2001
Color image processor
MINOLTA CO LTD53 citations92
US6064494AMay 16, 2000
Image processor
MINOLTA CO LTD33 citations92
US5973802AOct 26, 1999
Image reproducing apparatus for forming either of a color image or a monochromatic image
MINOLTA CO LTD53 citations92
US5867634AFeb 2, 1999
Image processor
MINOLTA CO LTD22 citations92
US6798534B1Sep 28, 2004
Image processing device
MINOLTA CO LTD14 citations84
US6721066B2Apr 13, 2004
Image processor
MINOLTA CO LTD17 citations84
US6661440B2Dec 9, 2003
Image forming apparatus with improved image registration
MINOLTA CO LTD14 citations84
US6301395B1Oct 9, 2001
Image processing apparatus that can appropriately enhance contour of an image
MINOLTA CO LTD15 citations84
US7268914B2Sep 11, 2007
Image processing apparatus, image forming apparatus, image processing method, and program product thereof
MINOLTA CO LTD17 citations83
US7319786B2Jan 15, 2008
Image processing apparatus, image forming apparatus and color image determination method thereof
MINOLTA CO LTD8 citations74
US5734759AMar 31, 1998
Image reading apparatus for sequentially providing red, green and blue signals during prescan and for reversing the order during reading
MINOLTA CO LTD15 citations74
US5726780AMar 10, 1998
Image processing apparatus
MINOLTA CO LTD13 citations74
MINOLTA CAMERA KK
21 patentsUS5357353AOct 18, 1994
Image forming apparatus
MINOLTA CAMERA KK67 citations96
US5657395AAug 12, 1997
Image processing device providing improved image data processing by converting original image into a plurality of pixels and analyzing density data of each pixel
MINOLTA CAMERA KK34 citations93
US5398124AMar 14, 1995
Image processor
MINOLTA CAMERA KK40 citations93
US5345320ASep 6, 1994
Color image data processing apparatus comprising monochrome pixel detector
MINOLTA CAMERA KK35 citations93
US5132788AJul 21, 1992
Image processing apparatus for processing respective image data obtained by reading an outputting image signal corresponding to pixels forming the original image
MINOLTA CAMERA KK43 citations93
US5130820AJul 14, 1992
Image processing device
MINOLTA CAMERA KK27 citations93
US5003380AMar 26, 1991
Image reading apparatus having plural line image sensor chips
MINOLTA CAMERA KK24 citations93
US4945405AJul 31, 1990
Color image read apparatus with shading and color balance correction
MINOLTA CAMERA KK43 citations93
US5604825AFeb 18, 1997
Image processing apparatus capable of varying magnification of images and method of using same
MINOLTA CAMERA KK25 citations92
US5327261AJul 5, 1994
Image reading apparatus capable of detecting paper size
MINOLTA CAMERA KK26 citations92
US5165071ANov 17, 1992
Digital color copying machine
MINOLTA CAMERA KK20 citations82
US5430559AJul 4, 1995
Image reading apparatus with improved output correction of image signal
MINOLTA CAMERA KK8 citations74
US5412489AMay 2, 1995
Shading correction having a line memory read which generates an average reference level from a plurality of lines of a reference plate
MINOLTA CAMERA KK17 citations74
US5257120AOct 26, 1993
Image processing apparatus
MINOLTA CAMERA KK8 citations74
US5253083AOct 12, 1993
Image reading apparatus having improved shading correction
MINOLTA CAMERA KK15 citations74
US5177623AJan 5, 1993
Image processing apparatus and method
MINOLTA CAMERA KK12 citations74
US5130788AJul 14, 1992
Shading correction using FIFO memory for correction data
MINOLTA CAMERA KK8 citations74
US5105280AApr 14, 1992
Image forming device which can form an image by printing a plurality of pixel unit areas which are composed of multiple sub pixels
MINOLTA CAMERA KK17 citations74
US5091978AFeb 25, 1992
Apparatus for line scanning a document
MINOLTA CAMERA KK15 citations74
US4987485AJan 22, 1991
Image reading apparatus with improved output correction of image signal
MINOLTA CAMERA KK17 citations74
US4839719AJun 13, 1989
Color image reading apparatus with an improved sensor
MINOLTA CAMERA KK17 citations74
KONICA MINOLTA BUSINESS TECH
1 patentMITSUI PETROCHEMICAL IND
1 patentShowing the top 50 of 59 patents by PatentIndex Score.