Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7626906 | Tilt control method and apparatus for optical disc recording and playback apparatus | Tsuyoshi Yamamoto | 2009-12-01 |
| 7577069 | Tilt control method and apparatus for optical disc recording and playback apparatus | Tsuyoshi Yamamoto | 2009-08-18 |
| 7184379 | Optical disk recording/reproducing method and apparatus in which recording properties of the disk are detected when recording speed is changed | Akira Tsukihashi, Toru Tanaka, Yasushi Hanamoto, Shinji Seki, Yutaka Imamura | 2007-02-27 |
| 7120099 | Laser output circuit for optical disk recording apparatus | Yutaka Imamura | 2006-10-10 |
| 7072263 | Optical disc recording and playback apparatus | Yasushi Hanamoto | 2006-07-04 |
| 6356520 | Disk storage device | Yasushi Hanamoto | 2002-03-12 |