Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803486 | Matrix switch circuit | Shinichi Sano, Yasuhito Takeuchi, Takao Higashiizumi, Tsuyoshi Kakizawa | 1989-02-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803486 | Matrix switch circuit | Shinichi Sano, Yasuhito Takeuchi, Takao Higashiizumi, Tsuyoshi Kakizawa | 1989-02-07 |