SY

Shinji Yamakawa

Ricoh Company: 23 patents #910 of 9,818Top 10%
Bridgestone: 2 patents #1,066 of 2,860Top 40%
DC Dainippon Screen Mfg. Co.: 1 patents #531 of 977Top 55%
JD Japan Display: 1 patents #900 of 1,204Top 75%
Overall (All Time): #144,157 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 1–25 of 27 patents

Patent #TitleCo-InventorsDate
12084536 Polybutadiene, method of producing polybutadiene, polybutadiene composition, tire, and resin member Shigenaga TAKANO, Shojiro Kaita, Kohtaro Osakada, Daisuke Takeuchi 2024-09-10
11472907 Polymerization catalyst composition, polymer manufacturing method, polymer, rubber composition, and tire Shigenaga TAKANO, Shojiro Kaita, Kohtaro Osakada, Daisuke Takeuchi 2022-10-18
10153244 Display Device Tetsuya Okamae, Kazuyuki Sunohara 2018-12-11
8917903 Image inspection apparatus, image forming apparatus, image inspection method, and image inspection program 2014-12-23
8810861 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 2014-08-19
8538086 Image inspection apparatus, image inspection method, and computer program product 2013-09-17
8374432 Image processing apparatus, image forming apparatus, image processing method, and computer program product 2013-02-12
8055084 Image processing device, image compression method, image compression program, and recording medium Fumihiro Hasegawa, Hitoshi Itoh 2011-11-08
7663783 Image-processing device processing image data by judging a detected and expanded medium-density field as a non-character edge field 2010-02-16
7139100 Image-processing device processing image data by judging a detected and expanded medium-density field as a non-character edge field 2006-11-21
7085013 Image processing apparatus including low-linear-density dot region detection unit, and image forming apparatus including the same 2006-08-01
6965695 Method and system for processing character edge area data 2005-11-15
6655861 Image processing apparatus including low-linear-density dot region detection unit, and image forming apparatus including the same 2003-12-02
6272248 Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system Takashi Saitoh, Hiroshi Takahashi, Yoshio Kaneko, Shigeo Kurotaka, Toshiya Hikita +11 more 2001-08-07
6014462 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 2000-01-11
5892595 Image reading apparatus for correct positioning of color component values of each picture element Koichi Noguchi, Shinichiro Wada 1999-04-06
5862434 Method and apparatus for forming an image on an image transfer medium and a method of forming an image using the image transfer medium 1999-01-19
5809366 Method and system for calibrating a color copier Kazuhisa Otsubo 1998-09-15
5801844 Image processing apparatus Yukio Sakano, Hiroshi Takahashi, Kounosuke Maruyama 1998-09-01
5751854 Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system Takashi Saitoh, Hiroshi Takahashi, Yoshio Kaneko, Shigeo Kurotaka, Toshiya Hikita +11 more 1998-05-12
5565993 Image processing apparatus for flexibly changing image data using a selective addressing scheme on a memory storing the image data 1996-10-15
5465160 Composite image forming apparatus for automatically combining document and image characters Yasushi Kamo, Masayuki Hayashi, Masaaki Ito, Midori Aida 1995-11-07
5444518 Image forming apparatus which adds identification information to recorded images to prevent forgery Tadato Hashiguchi, Michiyoshi Tachikawa, Takeshi Ukai, Yoshio Kaneko, Hiroshi Takahashi +5 more 1995-08-22
5333211 Image processing apparatus for preventing occurrence of moire in a reconstructed image Yoshimichi Kanda, Hajime Ichimura, Midori Aida, Ouji Maruyama, Tomio Sasaki +5 more 1994-07-26
5206718 Color image processor for creating shadows and masks 1993-04-27