Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7074472 | Hard coat agent composition and optical information medium using the same | Kazushi Tanaka, Naoki Hayashida | 2006-07-11 |
| 7026030 | Optical information medium | Kazushi Tanaka, Naoki Hayashida | 2006-04-11 |