Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4229619 | Method and apparatus for driving a multi way speaker system | Nobuaki Takahashi, Masanobu Shinozaki, Yasuo Kaizu | 1980-10-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4229619 | Method and apparatus for driving a multi way speaker system | Nobuaki Takahashi, Masanobu Shinozaki, Yasuo Kaizu | 1980-10-21 |