Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687143 | Reproducing apparatus having an optical head system | Koji Takahashi, Yuji Imamura | 1997-11-11 |
| 5680500 | Record bearing medium for still video signal | Koji Takahashi, Yuji Imamura | 1997-10-21 |