Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6782487 | Information recording medium information recording method and information recording/reproduction system | Yoshiho Gotoh, Hiroshi Ueda, Yoshihisa Fukushima | 2004-08-24 |
| 6742147 | Information recording medium, and method and apparatus for managing defect thereof | Shinji Sasaki, Hiroshi Ueda, Yoshihisa Fukushima | 2004-05-25 |
| 6732303 | Information recording medium, and method and apparatus for managing defect thereof | Shinji Sasaki, Hiroshi Ueda, Yoshihisa Fukushima | 2004-05-04 |