Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5155496 | Device for automatically expanding and contracting antenna | — | 1992-10-13 |
| 5019834 | Electrically powered mechanism for expanding and contracting antenna | — | 1991-05-28 |
| 4983892 | Mechanism for controlling electrically driven antenna | Akio Takizawa | 1991-01-08 |
| 4868815 | Power transmission system | Soichi Iwamura, Tadashi Itsumi | 1989-09-19 |
| 4665406 | Mechanism for extending and contracting antenna | Akio Takizawa, Syozo Saito | 1987-05-12 |