Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11563419 | Piezoelectric resonator with multiple electrode sections | Randall L. Kubena, Deborah J. Kirby | 2023-01-24 |
| 10921360 | Dual magnetic and electric field quartz sensor | Randall L. Kubena, Walter S. Wall, Richard J. Joyce | 2021-02-16 |
| 9879997 | Quartz resonator with plasma etched tethers for stress isolation from the mounting contacts | Randall L. Kubena, Deborah J. Kirby, David T. Chang | 2018-01-30 |
| 9257958 | Methods for noise reduction and quality factor improvement in resonators | John R. Vig | 2016-02-09 |
| 8569937 | Piezoelectric resonator with capacitive sense and/or force rebalance electrodes to control an amplitude of vibration | Randall L. Kubena | 2013-10-29 |
| 8305154 | Parametrically driven quartz UHF oscillator | Randall L. Kubena | 2012-11-06 |
| 7608986 | Quartz crystal resonator | Mihir S. Patel, Masako Tanaka | 2009-10-27 |
| 7571648 | Piezoelectric vibration angular velocity sensor | Mihir S. Patel, Shigeo Kanna, Masako Tanaka | 2009-08-11 |
| 6903629 | Electrode-free resonator structures for frequency control, filters and sensors | Arthur Ballato, John R. Vig | 2005-06-07 |
| 6658376 | Determination of vibration frequency characteristics of electroded crystal plate | Ji-Cheng Wang, Jiun-Der Yu, Tsutomu Imai | 2003-12-02 |
| 6654711 | Correction factors for the analysis of piezoelectric devices | Ji-Cheng Wang, Jiun-Der Yu, Tsutomu Imai | 2003-11-25 |
| 6230113 | Stiffness effects in piezoelectric devices | Ji-Cheng Wang, Tsutomu Imai | 2001-05-08 |