Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661707 | Method and apparatus for recording an information signal with scrambling thereof | — | 1997-08-26 |
| 5638064 | Digital modulating/demodulating method and apparatus using same | Takaro Mori, Takumi Hayashiyama | 1997-06-10 |