Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5511131 | Loudspeaker | Takeshi Yoshimura, Hidetoshi Shirakawa | 1996-04-23 |
| 5371806 | Loudspeaker | Takeshi Yoshimura, Hidetoshi Shirakawa | 1994-12-06 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5511131 | Loudspeaker | Takeshi Yoshimura, Hidetoshi Shirakawa | 1996-04-23 |
| 5371806 | Loudspeaker | Takeshi Yoshimura, Hidetoshi Shirakawa | 1994-12-06 |