Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4802200 | Radio telephone system control apparatus and method | Yoshitoshi Murata, Akio Yotsutani, Koichi Ito | 1989-01-31 |
| 4802201 | Control system of a radio telephone apparatus | Akio Yotsutani, Noboru Saegusa, Koichi Ito, Syozi Huse, Akio Toki | 1989-01-31 |