Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6115150 | Image data processing apparatus and image data processing process | Koji Nakamura, Masayuki Mizuno | 2000-09-05 |
| 5801845 | Image data processor for representing gray levels by a plurality of pixels | Masaya Fujimoto, Koji Nakamura, Ryuichi Okumura, Haruo Yamamoto | 1998-09-01 |
| 5802216 | Apparatus and method for contrast adjustment based on single factor | Takayuki Furumoto | 1998-09-01 |
| 5796491 | Color image-forming machine which selects different masking operations based upon different color regions | — | 1998-08-18 |
| 5790282 | Apparatus and method for adjusting color image by changing saturation without changing brightness | Haruo Yamamoto | 1998-08-04 |
| 5754683 | Image forming apparatus and gradation output adjusting method in image forming apparatus | Masaya Fujimoto, Katsumi Amakawa, Koji Nakamura, Haruo Yamamoto | 1998-05-19 |