Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8891683 | IBOC broadcast receiver | Naoki Nakajima, Masanori Ishida, Kazuo Koyama | 2014-11-18 |
| 8265585 | IBOC broadcasting receiver | Kazuo Koyama, Masanori Ishida, Naoki Nakajima | 2012-09-11 |
| 8121566 | Broadcast receiver and broadcast channel seek method | Masanori Ishida, Kazuo Koyama, Naoki Nakajima | 2012-02-21 |
| 8086198 | Radio broadcasting receiver and method for seeking radio broadcasting | Kazuo Koyama, Masanori Ishida, Naoki Nakajima | 2011-12-27 |