YH

Yoshihiko Hirota

MC Minolta Co.: 32 patents #12 of 1,416Top 1%
MI Minolta: 21 patents #78 of 1,109Top 8%
KM Konica Minolta: 2 patents #764 of 1,361Top 60%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
MI Mitsui Petrochemical Industries: 1 patents #503 of 1,024Top 50%
Overall (All Time): #40,696 of 4,157,543Top 1%
59
Patents All Time

Issued Patents All Time

Showing 1–25 of 59 patents

Patent #TitleCo-InventorsDate
8988732 Image processing apparatus and image processing method Tomohiro Yamaguchi 2015-03-24
8253163 High voltage semiconductor device including a free wheel diode Shigeru Kusunoki, Junji Yahiro 2012-08-28
7755167 Semiconductor device including switching element and two diodes Chihiro Tadokoro 2010-07-13
7319786 Image processing apparatus, image forming apparatus and color image determination method thereof Katsuhisa Toyama, Shoji Imaizumi, Hideyuki Hashimoto, Kazuhiro Ishiguro 2008-01-15
7268914 Image processing apparatus, image forming apparatus, image processing method, and program product thereof Kazuyoshi Noguchi 2007-09-11
7251055 Image forming apparatus having a function for correcting color deviation and the like Keisuke Hashimoto, Junji Nishigaki, Kentaro Katori, Tomoji Tanaka, Kenichi Sawada 2007-07-31
7180636 Image processor and method Keisuke Hashimoto 2007-02-20
7177462 Image processing apparatus, image forming apparatus and color image determination method thereof Katsuhisa Toyama, Shoji Imaizumi, Hideyuki Hashimoto, Kazuhiro Ishiguro 2007-02-13
7158134 Image processing apparatus and image processing method Keisuke Hashimoto 2007-01-02
7079685 Method and apparatus for image processing, including processing for reproducing black character areas of color and monochromatic images Kazuhiro Ishiguro 2006-07-18
7072506 Image processing apparatus image forming apparatus and color image determination method thereof Katsuhisa Toyama, Shoji Imaizumi, Hideyuki Hashimoto, Kazuhiro Ishiguro 2006-07-04
7046861 Image forming apparatus with image distortion correction function Shoji Imaizumi, Hiroshi Sugiura 2006-05-16
6997624 Image forming apparatus and image forming method Kazuyoshi Noguchi 2006-02-14
6978045 Image-processing apparatus Keisuke Hashimoto 2005-12-20
6912068 Image processor, image processing method, and program product storing proguram for controlling the image processor method Keisuke Hashimoto 2005-06-28
6809750 Image forming apparatus and image forming method Kazuhiro Ishiguro 2004-10-26
6798534 Image processing device Junji Nishigaki, Nobuhiro Mishima 2004-09-28
6721066 Image processor Hiroyuki Suzuki, Toru Kasamatsu 2004-04-13
6661440 Image forming apparatus with improved image registration Junji Nishigaki 2003-12-09
6631207 Image processor including processing for image data between edge or boundary portions of image data Kazuhiro Ishiguro 2003-10-07
6625331 Image forming apparatus Shoji Imaizumi, Hiroshi Sugiura, Toshio Tsuboi 2003-09-23
6559976 Color image processor 2003-05-06
6441915 Image forming apparatus Shoji Imaizumi, Hiroshi Sugiura 2002-08-27
6417932 Image processor Hiroyuki Suzuki, Toru Kasamatsu 2002-07-09
6323959 Color image processor Katsuhisa Toyama, Hiroshi Sugiura 2001-11-27