Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7218335 | Image recording apparatus and image recording method | Junichi Oka, Mamoru Fujimoto, Osamu Morizono | 2007-05-15 |
| 7180919 | Light emitting device drive circuit | — | 2007-02-20 |
| 5123060 | Method of generating gradation correction curve for correcting gradation character of image | Masamichi Cho, Akihiro Nomura, Kunio Tomohisa, Takashi Sakamoto, Nobuhiro Takita | 1992-06-16 |
| 5105296 | Method and apparatus for detecting beam spot shape | Masamichi Cho, Kunio Tomohisa | 1992-04-14 |
| 5012089 | Scanning beam control system and optical scale structure useful thereto | Masamichi Cho, Shinichi Nagata, Kunio Tomohisa, Hiroyuki Shirota | 1991-04-30 |
| 4870454 | Apparatus for and method of stabilizing the quantity of light of fluorescent lamp | Kazuma Kan, Hiroshi Tamura | 1989-09-26 |
| 4817180 | Image signal filtering | Masamichi Cho | 1989-03-28 |
| 4792979 | Method of and apparatus for correcting gradation of image represented by image data | Akihiro Nomura | 1988-12-20 |
| 4712141 | Method and apparatus for interpolating image signals | Kunio Tomohisa, Masamichi Cho | 1987-12-08 |
| 4691240 | Image input device and a method of correcting input signals of the same | Yoshiaki Morizumi | 1987-09-01 |
| 4672463 | Method for emphasizing sharpness in picture scanning recording time in a picture reproducing machine | Kunio Tomohisa, Masamichi Cho | 1987-06-09 |
| 4555180 | Printed area measuring apparatus | Tatsunosuke Masuda, Tetsuo Hohki | 1985-11-26 |