Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6771792 | Track-shaped loudspeaker | — | 2004-08-03 |
| 5740265 | Loudspeaker unit and loudspeaker system employing the unit | — | 1998-04-14 |
| 5511131 | Loudspeaker | Rintaro Kohara, Takeshi Yoshimura | 1996-04-23 |
| 5371806 | Loudspeaker | Rintaro Kohara, Takeshi Yoshimura | 1994-12-06 |