Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6891784 | Apparatus and method for re-executing pre-pit detection if pre-pits are not detected after changing reference level | Naoharu Yanagawa, Junji Tanaka, Shin Akabane | 2005-05-10 |