HI

Hiroyoshi Ishizaki

Ricoh Company: 13 patents #1,714 of 9,818Top 20%
Overall (All Time): #360,832 of 4,157,543Top 9%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
12231607 Image processing apparatus for performing gradation correction, image forming system, image processing method, and storage medium Akiho Watanabe, Kazuki Yoshida, Kengo Yamamoto 2025-02-18
9767546 Image inspection apparatus, image inspection system and image inspection method Keiji Kojima, Tadashi Kitai, Hitomi Kaneko 2017-09-19
9233551 Apparatus, system, and method of inspecting image, and recording medium storing image inspection control program Hitomi Kaneko, Tadashi Kitai, Keiji Kojima, Keiichi Miyamoto, Hiroyuki Kawamoto 2016-01-12
9185240 Image test apparatus, image test system, and image test method Keiji Kojima 2015-11-10
9172824 Apparatus, system, and method of inspecting image, and recording medium storing image inspection control program Keiji Kojima, Tadashi Kitai, Hitomi Kaneko, Hiroyuki Kawamoto, Keiichi Miyamoto 2015-10-27
9088745 Apparatus, system, and method of inspecting image, and recording medium storing image inspection control program Tadashi Kitai, Hitomi Kaneko, Keiji Kojima, Keiichi Miyamoto, Hiroyuki Kawamoto 2015-07-21
9065938 Apparatus, system, and method of inspecting image, and recording medium storing image inspection control program Tadashi Kitai, Hitomi Kaneko, Keiji Kojima, Hiroyuki Kawamoto, Keiichi Miyamoto 2015-06-23
8970931 Image reading device employing calibration plate, apparatus including image reading device, image reading controlling method, and recording medium storing image reading control program Tadashi Kitai, Hitomi Kaneko, Keiji Kojima, Hiroyuki Kawamoto, Hideyo Makino 2015-03-03
8964249 Image test apparatus, image test system, and image test method for testing a print image based on master image data Hiroyuki Kawamoto, Tadashi Kitai, Hitomi Kaneko, Keiji Kojima, Keiichi Miyamoto 2015-02-24
8848244 Image inspection method, apparatus, control program overlapping inspection images to obtain positional shift Hitomi Kaneko, Tadashi Kitai, Keiji Kojima, Hiroyuki Kawamoto, Keiichi Miyamoto 2014-09-30
8792128 Apparatus, system, and method of inspecting image, and recording medium storing image inspection control program Tadashi Kitai, Hitomi Kaneko, Keiji Kojima, Keiichi Miyamoto, Hiroyuki Kawamoto 2014-07-29
8649020 Color chart Tadashi Kitai, Hitomi Kaneko 2014-02-11
5031225 Character recognition method for recognizing character in an arbitrary rotation position Michiyoshi Tachikawa, Masayuki Ishigami, Hiroshi Nakayama 1991-07-09