Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875231 | Radio telephone system | Toshihiro Hara, Ryoji Kawasaki, Kazuyuki Tate, Syoji Huse, Koji Ono | 1989-10-17 |
| 4843622 | Communication control system capable of searching a called telephone set in a mobile radio telephone network | Yukihiro Sako, Toshihiko Shibata, Yoshitoshi Murata | 1989-06-27 |
| 4802200 | Radio telephone system control apparatus and method | Yoshitoshi Murata, Kazuhiro Yoshizawa, Koichi Ito | 1989-01-31 |
| 4802201 | Control system of a radio telephone apparatus | Kazuhiro Yoshizawa, Noboru Saegusa, Koichi Ito, Syozi Huse, Akio Toki | 1989-01-31 |