Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5115468 | SSB digital modulator | Seiji Kawase | 1992-05-19 |
| 4857859 | AM digital demodulator | Akira Nakazawa | 1989-08-15 |
| 4855894 | Frequency converting apparatus | Tetsuo Ikeda, Seiji Kawase | 1989-08-08 |