Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6795563 | Speaker for an electronic instrument | — | 2004-09-21 |
| 6751332 | Speaker | Takashi Kobayashi, Kazumi Miyamoto | 2004-06-15 |
| 6690809 | Microspeaker | Kazumi Miyamoto, Takashi Kobayashi | 2004-02-10 |