Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6552968 | Optical recording medium, method of producing same, and optical recording and reproduction device | Koichiro Kishima, Yuji Kuroda, Isao Ichimura, Kiyoshi Osato | 2003-04-22 |