Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5932850 | Speaker system | Takashi Sabato, Teruo Doi, Kazuki Honda, Takafumi Yuasa | 1999-08-03 |
| 5929392 | Speaker system | Takashi Sabato, Teruo Doi, Kazuki Honda, Takafumi Yuasa | 1999-07-27 |
| 5793000 | Speaker system | Takashi Sabato, Teruo Doi, Kazuki Honda, Takafumi Yuasa | 1998-08-11 |