Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7630411 | Multiplexing apparatus and demultiplexing apparatus | Masayuki Baba, Yoshiaki Kato | 2009-12-08 |
| 7447218 | Communication service unit and connection sequence operating method | Susumu Oka, Yukiyasu Kawahata, Hiroshi Honma, Morio Yoshimoto | 2008-11-04 |
| 6920222 | Conditional access system enabling partial viewing | Daisuke Tsukahara, Yasutaka Akita, Susumu Oka, Tokumichi Murakami | 2005-07-19 |