Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5302910 | FM detector circuit with error voltage applied to phase shifting circuit | Hiroshi Kondo | 1994-04-12 |
| 5298813 | Polar leapfrog filter | Hiroshi Tanigawa, Hiroshi Kondo, Tsuneo Tohyama | 1994-03-29 |
| 5296763 | Polar leapfrog filter | Hiroshi Tanigawa, Hiroshi Kondo, Tsuneo Tohyama | 1994-03-22 |
| 5293086 | Polar leapfrog filter | Hiroshi Tanigawa, Hiroshi Kondo, Tsuneo Tohyama | 1994-03-08 |
| 5258716 | All-pass filter | Hiroshi Kondo, Tsuneo Tohyama, Hiroshi Tanigawa | 1993-11-02 |
| 5216375 | Variable time-constant type differentiator | Hiroshi Tanigawa, Hiroshi Kondou, Tsuneo Tohyama | 1993-06-01 |
| 5182522 | Polar leapfrog filter | Hiroshi Tanigawa, Hiroshi Kondo, Tsuneo Tohyama | 1993-01-26 |
| 5177382 | Active filter circuit | Hiroshi Kondo, Hiroshi Tanigawa, Tsuneo Tohyama | 1993-01-05 |