Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6859544 | Magnetic circuit for speaker, method of manufacture thereof, and speaker using same | Kazuma Kato | 2005-02-22 |
| 6741721 | Informing apparatus for mobile communication apparatus | Kenichi Ooki, Yutaka Mae | 2004-05-25 |
| 5583945 | Speaker with a molded plastic frame including a positioning projection, and a method for manufacturing the same | Toshihito Iijima | 1996-12-10 |