Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701357 | Loudspeaker structure with a diffuser | Yoshio Sakamoto | 1997-12-23 |
| 5590210 | Loudspeaker structure and method of assembling loudspeaker | Yoshio Sakamoto | 1996-12-31 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701357 | Loudspeaker structure with a diffuser | Yoshio Sakamoto | 1997-12-23 |
| 5590210 | Loudspeaker structure and method of assembling loudspeaker | Yoshio Sakamoto | 1996-12-31 |