Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5063594 | Video signal scrambling system | — | 1991-11-05 |
| 4901351 | Video signal scramble system | Masatoshi Tanaka, Wataru Kuroiwa, Akinori Masuko, Jyoji Maeda, Tsutomu Uekusa | 1990-02-13 |
| 4686564 | Communication data processing device of cable television system | Akinori Masuko, Wataru Kuroiwa, Tsutomu Uekusa, Robert M. Rast, W. Sherwood Campbell | 1987-08-11 |