Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D432519 | Loudspeaker with amplifier | Kazuhiko Yamaoka, Kenji Ide, Morio Mizuno, Mitsuaki Kanada | 2000-10-24 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D432519 | Loudspeaker with amplifier | Kazuhiko Yamaoka, Kenji Ide, Morio Mizuno, Mitsuaki Kanada | 2000-10-24 |