Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7940940 | Muting circuit and semiconductor integrated circuit | Keiichi Fujii | 2011-05-10 |
| 7312650 | Step-down voltage output circuit | Taku Kobayashi, Keiichi Fujii, Toshinobu Nagasawa | 2007-12-25 |