Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4405671 | Optical information recording disk | Hiroshi Ozawa, Masaaki Shin, Mitsuyoshi Nakamura, Ichiro Otsuka, Kazuo Sugazaki | 1983-09-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4405671 | Optical information recording disk | Hiroshi Ozawa, Masaaki Shin, Mitsuyoshi Nakamura, Ichiro Otsuka, Kazuo Sugazaki | 1983-09-20 |