Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6757404 | Loud speaker, diaphragm and process for making the diaphragm | Hiroyuki Takewa, Mikio Iwasa, Mitsukazu Kuze, Shinya Tabata, Shinya Mizone +5 more | 2004-06-29 |
| 5932850 | Speaker system | Takashi Sabato, Toshihide Takizawa, Kazuki Honda, Takafumi Yuasa | 1999-08-03 |
| 5929392 | Speaker system | Takashi Sabato, Toshihide Takizawa, Kazuki Honda, Takafumi Yuasa | 1999-07-27 |
| 5793000 | Speaker system | Takashi Sabato, Toshihide Takizawa, Kazuki Honda, Takafumi Yuasa | 1998-08-11 |