Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7221466 | Image processing device, image processing method and image forming apparatus | Hiroshi Ishii, Shogo Oneda | 2007-05-22 |
| 7221799 | Image processing based on degree of white-background likeliness | Hiroyuki Shibaki | 2007-05-22 |
| 7088472 | Method, system, and apparatus for image forming and processing capable of appropriately adjusting input and output properties | Hiroyuki Shibaki, Hiroshi Ishii, Hiroki Kubozono, Shougu Oneda | 2006-08-08 |
| 6987886 | Image processing based on degree of white-background likeliness | Hiroyuki Shibaki | 2006-01-17 |
| 6731817 | Apparatus and method for forming an image by processing input image data while suppressing banding and dropout | Hiroyuki Shibaki | 2004-05-04 |
| 6556707 | Method and apparatus for image processing for performing a color conversion | Takahiro Yagishita, Yukiko Yamazaki, Nekka Matsuura, Hiroyuki Shibaki, Hiroshi Ishii | 2003-04-29 |
| 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 |
| 6122406 | Image processing device | — | 2000-09-19 |
| 6041139 | Image processing apparatus | Rie Ishii | 2000-03-21 |
| 5781653 | Image processing apparatus for determining copying-inhibited document | — | 1998-07-14 |
| 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 |
| 5659628 | Special-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating function | Michiyoshi Tachikawa, Shigeo Kurotaka, Takeshi Ukai, Yukio Sakano, Kouji Ishigaki +4 more | 1997-08-19 |
| 5652803 | Special-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating function | Michiyoshi Tachikawa, Shigeo Kurotaka, Takeshi Ukai, Yukio Sakano, Kouji Ishigaki +4 more | 1997-07-29 |
| 5647010 | Image forming apparatus with security feature which prevents copying of specific types of documents | Mutsuo Shimomae | 1997-07-08 |
| 5473444 | Image processing device having function of detecting dotted-image area | Yukio Sakano | 1995-12-05 |
| 5410619 | Digital image processing apparatus for processing a variety of types of input image data | Tetsuo Fujisawa, Takako Satoh | 1995-04-25 |
| 5392137 | Image processing apparatus in which filtering is selected for input image characteristics | — | 1995-02-21 |
| 4979129 | Digital color converting apparatus for color image processor | Takanori Itoh, Kazuo Murai | 1990-12-18 |