Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7957551 | Loudspeaker | Shinya Tabata, Takenori Yamakawa, Yasuhiro Nakanishi | 2011-06-07 |
| 7149322 | Magnetic circuit for loudspeaker and loudspeaker comprising it | Ryo Kuribayashi, Kazuyoshi Umemura, Hiroyuki Morimoto | 2006-12-12 |