Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6700845 | Multi-layer optical recording medium and method and apparatus for reproducing optical data | Yoichiro Sako, Tatsuya Inokuchi, Hiroshi Ogawa, Masanobu Yamamoto | 2004-03-02 |