Issued Patents All Time
Showing 1–25 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5486898 | Color image forming apparatus with photoreceptor protector | Yozo Fujii, Hiroyuki Moriguchi, Yoshikazu Ikunami, Akihiko Tamura, Kazuo Yasuda +6 more | 1996-01-23 |
| 5357354 | Color image processing apparatus capable of discriminating between a monochromatic document and a color document | Seiichiro Hiratsuka, Koji Washio, Hiroshi Tokunaga, Tadao Kishimoto, Takashi Hasebe | 1994-10-18 |
| 5259041 | Image processing method and apparatus | Hiroshi Kato, Hiroyuki Yamamoto, Takashi Hasebe, Yoshinori Abe, Tetsuo Kimoto | 1993-11-02 |
| 5216498 | Image processing apparatus capable of detecting marked region | Hiroshi Katoh | 1993-06-01 |
| 5208663 | Color image processing apparatus provided with an image discrimination means | Seiichiro Hiratsuka, Koji Washio | 1993-05-04 |
| 5119184 | Color image processing apparatus with digital color signal compression means | Seiichiro Hiratsuka, Koji Washio | 1992-06-02 |
| 5053867 | Digital color image processing apparatus | Hiroyuki Yamamoto, Takashi Hasebe, Hiroshi Katoh, Yoshinori Abe, Tetsuo Kimoto | 1991-10-01 |
| 5029017 | Image processing apparatus capable of enlarging/reducing apparatus | Yoshinori Abe | 1991-07-02 |
| 5016096 | Apparatus for color processing specifically inside or outside a detected region | Hiroshi Katoh | 1991-05-14 |
| 5001576 | Image processor with improved discrimination between character image and tonal image | Kazuyoshi Tanaka, Hiroshi Katoh | 1991-03-19 |
| 4980760 | Image processing apparatus | Seiichiro Hiratsuka, Koji Washio, Hiroyuki Yamamoto | 1990-12-25 |
| 4980758 | Image processing technique for processing digital color image information | Hiroyuki Yamamoto, Hiroshi Niki | 1990-12-25 |
| 4953229 | Image processing apparatus | Yoshinori Abe | 1990-08-28 |
| 4937662 | Color image processing device having ability to process and record an outside or inside region enclosed with a color marker | Hiroshi Katoh, Hiroyuki Yamamoto, Takashi Hasebe, Yoshinori Abe, Tetsuo Kimoto | 1990-06-26 |
| 4920571 | Image processing system with capability of enlarging and reducing operations | Yoshinori Abe, Hiroyuki Yamamoto | 1990-04-24 |
| 4903142 | Apparatus for processing halftone image | Takashi Hasebe, Seiichiro Hiratsuka, Yoshinori Abe | 1990-02-20 |
| 4879595 | Technique for reproducing an image read from a color original | Hiroshi Niki, Hiroyuki Yamamoto, Yoshinori Abe | 1989-11-07 |
| 4864357 | Color image processing apparatus | Hiroyuki Yamamoto, Yoshinori Abe | 1989-09-05 |
| 4841376 | Shading correcting method enabling prevention of effect of noise and apparatus therefor | Hiroyuki Yamamoto | 1989-06-20 |
| 4841361 | Color image processing apparatus | Hiroyuki Yamamoto | 1989-06-20 |
| 4841377 | Continuous image estimation method | Seiichiro Hiratsuka | 1989-06-20 |
| 4835600 | Solid state image reading device with sensors adhered to plate which is adhered to lens holding member | Kiyoshi Harada, Motokazu Ikeda, Makoto Kon, Shizuo Morita, Yoshiyuki Ichihara | 1989-05-30 |
| 4833531 | Technique for interpolating a color image for image enlargement or reduction based on look-up tables stored in memory | Yoshinori Abe | 1989-05-23 |
| 4825246 | Image processing method and image forming apparatus | Masakazu Fukuchi, Kiyoshi Akazawa, Hiroshi Niki, Shunji Matsuo, Hiroyuki Yamamoto +1 more | 1989-04-25 |
| 4814895 | Image reading device | Kiyoshi Harada, Motokazu Ikeda, Makoto Kon, Sizuo Morita, Yoshiyuki Ichihara | 1989-03-21 |