Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6537423 | Optical disk production device | Shoei Ebisawa, Kiyoshi Oshima, Daisuke Ito | 2003-03-25 |
| 6406770 | Optical disk and method of manufacturing optical disk | Shoei Ebisawa, Daisuke Ito, Kiyoshi Oshima, Keiichi Hashimoto | 2002-06-18 |