Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6061020 | Method and apparatus for transmitting radio wave by rotating plane of polarization | Yasubumi Kanai, Michio Ishikawa, Akira Tsutsumi, Shigeki SUGIYAMA, Toshio Miyoshi | 2000-05-09 |
| 5842135 | Short wave transmission method and apparatus therefor | — | 1998-11-24 |