Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6312779 | Information recording medium and information recording/reproducing apparatus | Akemi Hirotsune, Makoto Miyamoto, Keikichi Andoo, Junko Ushiyama, Yumiko Anzai +2 more | 2001-11-06 |