Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D358388 | Headphone | Mitsuhiro Nakamura | 1995-05-16 |
| D353379 | Earphone | Mitsuhiro Nakamura | 1994-12-13 |
| D337115 | Headphone | Akira Yamazaki, Toshio Iribe | 1993-07-06 |
| D336646 | Headphone | Akira Yamazaki, Toshio Iribe | 1993-06-22 |