Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857859 | AM digital demodulator | Akira Nakazawa | 1989-08-15 |
| 4855894 | Frequency converting apparatus | Tetsuo Ikeda, Seiji Kawase | 1989-08-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857859 | AM digital demodulator | Akira Nakazawa | 1989-08-15 |
| 4855894 | Frequency converting apparatus | Tetsuo Ikeda, Seiji Kawase | 1989-08-08 |