Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6658128 | Horn loudspeaker | Tsutomu Yoshioka, Hiroshi Kubota, Ken Iwayama | 2003-12-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6658128 | Horn loudspeaker | Tsutomu Yoshioka, Hiroshi Kubota, Ken Iwayama | 2003-12-02 |