Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8159913 | Optical disc recording apparatus and recording power control method | Tomoya Hoshi, Atsushi Yamada, Tooru Kawashima, Tsuyoshi Toda, Koichiro Nishimura | 2012-04-17 |
| 8130613 | Optical disc apparatus and reproduction control method | Atsushi Yamada, Tooru Kawashima | 2012-03-06 |
| 8040771 | Optical disc apparatus and method for controlling overwrite power | Atsushi Yamada, Toru Kawashima, Tomoya Hoshi | 2011-10-18 |