Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9906229 | Phase locked loop circuit and phase locked loop method | — | 2018-02-27 |
| 9083318 | Digitally controlled oscillator and output frequency control method | — | 2015-07-14 |
| 9059719 | Phase difference detection method, phase difference detection circuit, and wireless power transmission device | — | 2015-06-16 |
| 8686797 | Phase locked loop circuit and communication device | — | 2014-04-01 |
| 7855580 | Phase comparator, phase synchronizing circuit, and phase-comparison control method | — | 2010-12-21 |
| 7145403 | Static magnetic field applying structure for use in atomic oscillator | Hideyuki Matsuura, Akira Kikuchi | 2006-12-05 |
| 6985043 | Atomic oscillator | Hideyuki Matsuura, Akira Kikuchi | 2006-01-10 |
| 6812800 | Atomic oscillator | Hideyuki Matsuura, Yoshito Koyama, Minoru Sakai | 2004-11-02 |
| 6801091 | Oscillator controller and atomic oscillator | Hideyuki Matsuura, Yoshifumi Nakajima, Yoshito Koyama | 2004-10-05 |
| 6570455 | Rubidium atom oscillator generating a stable frequency | Hideyuki Matsuura, Yoshifumi Nakajima, Yoshito Koyama | 2003-05-27 |
| 6300841 | Atomic oscillator utilizing a high frequency converting circuit and an active, low-integral-number multiplier | Hideyuki Matsuura, Yoshifumi Nakajima, Yoshito Koyama, Koji Nakamuta, Minoru Sakai | 2001-10-09 |
| 5712597 | Rubidium atom oscillator with temperature stabilized frequency output | Yoshifumi Nakajima, Yoshito Koyama | 1998-01-27 |