Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7231266 | Digital control device and program | — | 2007-06-12 |
| 4709392 | Dome speaker with a diaphragm having at least one elongated cut-out portion | Tatsuya Omori | 1987-11-24 |
| 4591667 | Dome speaker with cut-out portions in the voice coil bobbin | Masanori Hino, Tatsuya Omori | 1986-05-27 |
| 4410063 | Loudspeaker system | Akira Yasue, Yozo Takahashi | 1983-10-18 |