Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5335367 | Antenna retracting structure of portable radio | Tetsuya Kubo, Ryoichi Kaiwa, Michiyoshi Kudoh | 1994-08-02 |
| 5327584 | Portable radio having cover releasing mechanism and receive switch which are operable together | Tetsuya Kubo, Ryoichi Kaiwa, Michiyoshi Kudoh | 1994-07-05 |
| 5046131 | Portable radio transceiver apparatus | Akira Takahashi, Ryoichi Kaiwa | 1991-09-03 |
| 4881258 | Portable type mobile radio telephone | Ryoichi Kaiwa, Michiyoshi Kudo, Keiki Kobayashi, Yuichiro Suganuma | 1989-11-14 |