Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10593860 | Piezoelectric device | Kansho Yamamoto | 2020-03-17 |
| 10536779 | Electroacoustic transducer | Shunsuke KITAMURA, Kansho Yamamoto, Takuo Hada | 2020-01-14 |
| 8774437 | Speaker box and speaker device | Takeshi Nakamura | 2014-07-08 |
| 6718040 | Transformer, loudspeaker device, loudspeaker network, and loudspeaker system | Takeshi Nakamura, Takayuki Kaneko, Yutaka Murai | 2004-04-06 |
| 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 |