Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5230019 | Key signal conversion device for CATV system | Harumasa Kajita, Tetsuo Kariya, Toshikazu Wakabayashi, Ichiro Kawashima, Satoshi Nakanami +1 more | 1993-07-20 |
| 5161187 | Cable television system | Harumasa Kajita, Tetsuo Kariya, Toshikazu Wakabayashi, Ichiro Kawashima, Satoshi Nakanami +1 more | 1992-11-03 |