Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9398363 | Neckband-type earphone | Katsuyoshi Takeno | 2016-07-19 |
| 9332336 | Headphone device | — | 2016-05-03 |
| 9197959 | Headphone device | Kazuo Ochiai | 2015-11-24 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9398363 | Neckband-type earphone | Katsuyoshi Takeno | 2016-07-19 |
| 9332336 | Headphone device | — | 2016-05-03 |
| 9197959 | Headphone device | Kazuo Ochiai | 2015-11-24 |