Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4989231 | Mobile communication system and its control method | — | 1991-01-29 |
| 4633519 | Diversity reception system in a portable radio apparatus | Akio Gotoh, Kazuo Yamamoto | 1986-12-30 |