Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7145850 | Optical disc recording apparatus and control method therefor | Susumu Takumai | 2006-12-05 |
| 7082094 | Optical recording apparatus with drawing capability of visible image on disk face | Morito Morishima, Akira Usui | 2006-07-25 |
| 6990050 | Optical disk recording and reproducing apparatus to control the laser power to an optimal value and enable stable recording and reproducing operations | Tomoaki Hirai | 2006-01-24 |
| 6920099 | Optical disk recording apparatus | Tomoaki Hirai | 2005-07-19 |
| 5526333 | Optical disk recording device | Akira Usui, Katsuichi Osakabe, Yukihisa Nakajo | 1996-06-11 |
| 4696306 | Electrocardiogram playback system and method | — | 1987-09-29 |