Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697049 | Radio relay method, radio relay system using the method and radio unit | Mitsuo Shiraishi, Sakari Ohira | 1997-12-09 |
| 5633862 | DTMF signal transmission method in single frequency simultaneous transmitting and receiving system and single frequency simultaneous transmitting and receiving system transceiver capable of transmitting DTMF signal | Kenichi Suzuki, Sakari Ohira, Osamu Suzuki | 1997-05-27 |
| 5524274 | Transceiver controlled by absence/presence of input signal | Norio Takahashi, Nobuo Sekiguchi, Sakari Ohira | 1996-06-04 |
| 5493698 | Radio apparatus for simulataneously transmitting and receiving signals using a simple frequency | Osamu Suzuki, Kazuo Suzuka, Mitsuo Shiraishi, Sakari Ohira, Kenichi Suzuki | 1996-02-20 |
| 5490167 | Duplex voice communication radio transmitter-receiver | Susumu Nakabayashi, Sakari Ohira, Kouichi Ishikawa | 1996-02-06 |
| 5355363 | Voice transmission method and apparatus in duplex radio system | Katsumi Takahashi, Takashi Kurokawa, Nobuo Sekiguchi, Kazuo Suzuka, Sakari Ohira +2 more | 1994-10-11 |