Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6650759 | Speaker | Takeshi Nakamura, Takayuki Kaneko, Yutaka Murai | 2003-11-18 |
| 6502662 | Speaker having a hemispherical vibrator | Takeshi Nakamura, Takayuki Kaneko, Yutaka Murai | 2003-01-07 |