Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6658128 | Horn loudspeaker | Tsutomu Yoshioka, Yasuhiro Fukunaka, Hiroshi Kubota | 2003-12-02 |
| 6580801 | Loudspeaker apparatus | Tsuyoshi Takagi, Hiroshi Kubota | 2003-06-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6658128 | Horn loudspeaker | Tsutomu Yoshioka, Yasuhiro Fukunaka, Hiroshi Kubota | 2003-12-02 |
| 6580801 | Loudspeaker apparatus | Tsuyoshi Takagi, Hiroshi Kubota | 2003-06-17 |