Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8004941 | Optical disk apparatus and test writing method | Koichiro Nishimura, Toru Kawashima, Tsuyoshi Toda | 2011-08-23 |
| 7944787 | Method for adjusting a focus position on an optical disc and an optical disc apparatus applying the same therein | Tomoya Hoshi, Toru Kawashima, Atsushi Yamada | 2011-05-17 |