Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10010991 | State measuring device and state measuring system | Eiji Takahashi, Kaname Araki, Masato Kannaka, Katsuhiko Ozaki, Koichi Akazawa +2 more | 2018-07-03 |
| 7492194 | Oscillator including phase frequency detectors for detecting a phase difference between two input signals and outputting a control command signal | Chitaka Manabe | 2009-02-17 |
| 7177591 | Frequency converter and radio communications system employing the same | Chitaka Manabe, Takuya Kusaka, Yuichiro Goto, Koji Inoue | 2007-02-13 |
| 7061330 | Oscillator including phase frequency detectors for detecting a phase difference between two input signals and outputting a control command signal | Chitaka Manabe | 2006-06-13 |
| 6724804 | Frequency converter and radio communications system employing the same | Chitaka Manabe, Takuya Kusaka, Yuichiro Goto, Koji Inoue | 2004-04-20 |
| 4940952 | Phase and frequency comparator circuit for phase locked loop | — | 1990-07-10 |
| 4797637 | PLL frequency synthesizer | Takafumi Murai, Osamu Yamanaka, Takeshi Fujii | 1989-01-10 |