Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5610879 | Optical reproducing device, optical reproducing method using the same, and optical record medium used in the same | Mitsurou Moriya, Hiromichi Ishibashi, Takeo Ohta | 1997-03-11 |