Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7539318 | Speaker unit, method for fabricating the same, and speaker apparatus | Shinichi Sato, Tomoaki Shoji, Toshirou Araki | 2009-05-26 |
| 7263198 | Loudspeaker | — | 2007-08-28 |
| 7239715 | Speaker apparatus to be mounted on a vehicle | Koji Maekawa, Takeshi Ito | 2007-07-03 |
| 7227969 | Inner panel loudspeaker apparatus | Koji Maekawa, Takeshi Ito | 2007-06-05 |