Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7352684 | Information medium and information recording and reproducing device | Kiyoshi Tanii, Hiroyuki Yamaguchi | 2008-04-01 |
| 7218585 | Information medium and information recording/reproduction apparatus | Kiyoshi Tanii, Hiroyuki Yamaguchi | 2007-05-15 |