Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8139806 | Earphone for placement in an ear | Akihiko Hosaka | 2012-03-20 |
| 7362874 | Speaker system having a front speaker integrated with a reflection-type surround speaker | Jin Sub LEE, Takashi Ohyaba, Masao Gibo | 2008-04-22 |