Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4978578 | Optical disk of polycarbonate | Tatsuya Kanno, Ikuo Takahashi, Kenichi Sasaki, Yutaka Fukuda | 1990-12-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4978578 | Optical disk of polycarbonate | Tatsuya Kanno, Ikuo Takahashi, Kenichi Sasaki, Yutaka Fukuda | 1990-12-18 |