Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6768710 | Optical information recording medium, method for producing the same, and method and apparatus for recording information thereon | Noboru Yamada | 2004-07-27 |
| 6764736 | Optical information recording medium and recording method using the same | Noboru Yamada | 2004-07-20 |