Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8552802 | Amplifying circuit and current-voltage conversion circuit | Tsuyoshi Kawaguchi, Norimasa Kitagawa, Mamoru Sekiya, Naofumi Shimasaki | 2013-10-08 |
| 8310307 | Amplifying circuit | Tsuyoshi Kawaguchi, Mamoru Sekiya, Norimasa Kitagawa | 2012-11-13 |