Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8246485 | Golf club shaft | Toshimitsu Miura | 2012-08-21 |
| 7338386 | Golf club shaft | — | 2008-03-04 |
| 7029402 | Golf club shaft tip diameter adjuster, golf club shaft and golf club | — | 2006-04-18 |
| 6801091 | Oscillator controller and atomic oscillator | Ken Atsumi, Hideyuki Matsuura, Yoshito Koyama | 2004-10-05 |
| 6570455 | Rubidium atom oscillator generating a stable frequency | Ken Atsumi, Hideyuki Matsuura, Yoshito Koyama | 2003-05-27 |
| 6300841 | Atomic oscillator utilizing a high frequency converting circuit and an active, low-integral-number multiplier | Ken Atsumi, Hideyuki Matsuura, Yoshito Koyama, Koji Nakamuta, Minoru Sakai | 2001-10-09 |
| 5751193 | Rubidium atomic oscillator with laser diode wavelength adjustment | Yoshito Koyama | 1998-05-12 |
| 5712597 | Rubidium atom oscillator with temperature stabilized frequency output | Ken Atsumi, Yoshito Koyama | 1998-01-27 |
| 5063568 | Wavelength stabilized light source | Kazuharu Chiba, Hideo Sumiyoshi | 1991-11-05 |
| 4914403 | Cesium oscillator | Kazuharu Chiba, Hideo Sumiyoshi | 1990-04-03 |