Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6777657 | Focusing controller for focus jump control between recording layers of multilayer disk | Yoshihiro Hashizuka, Kazunori Matsuo, Takeshi Sato, Morio Nozaki, Hitoshi Yamazaki +3 more | 2004-08-17 |
| 6683826 | System for reproducing information recorded on an information recording medium | Kazunori Matsuo, Yasutaka Suzuki, Masakazu Takahashi, Hideaki Watarihana, Hiroki Goto +5 more | 2004-01-27 |