Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8213284 | Multi-layered rewritable optical disc recording apparatus and recording method | Tetsuji Kawashima, Yukio Shishido, Yoshiyuki Tokumoto, Hiroshi Naganuma, Kiyoshi Arai +1 more | 2012-07-03 |