Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5465385 | CATV system with an easy program reservation | Masahiko Kawasaki, Kazushi Sakuma, Tatsuo Takahashi, Ryusuke Tozaki | 1995-11-07 |
| 5416508 | CATV system with transmission of program schedules, linked program broadcasts, and permissive ordering periods | Kazushi Sakuma, Masahiko Kawasaki, Kimihito Harada, Tatsuo Takahashi, Ruysuke Tozaki | 1995-05-16 |