Issued Patents All Time
Showing 26–50 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4785232 | Contactless hall coefficient measurement apparatus and method for piezoelectric material | Herbert A. Leupold | 1988-11-15 |
| 4773138 | Method of producing transducer isolation in surface acoustic wave processor | Elio A. Mariani | 1988-09-27 |
| 4720651 | Resonator insensitive to paraxial accelerations | Mitsuo Nakazawa | 1988-01-19 |
| 4636678 | Compensation of acoustic wave devices | — | 1987-01-13 |
| 4634914 | Piezoelectric SAW device with a corrugated surface | — | 1987-01-06 |
| 4631437 | Stress compensated piezoelectric crystal device | — | 1986-12-23 |
| 4625138 | Piezoelectric microwave resonator using lateral excitation | — | 1986-11-25 |
| 4607239 | Adjustment of the frequency-temperature characteristics of crystal oscillators | — | 1986-08-19 |
| 4598261 | Microwave saw monochromator | — | 1986-07-01 |
| 4598224 | Surface acoustic wave device for sensing the presence of chemical agents | — | 1986-07-01 |
| 4596697 | Chemical sensor matrix | — | 1986-06-24 |
| 4580116 | Dielectric resonator | — | 1986-04-01 |
| 4568850 | Doubly rotated cylindrical crystal resonator | — | 1986-02-04 |
| 4554717 | Method of making miniature high frequency SC-cut quartz crystal resonators | John R. Vig | 1985-11-26 |
| 4547748 | Frequency synthesizer using a matrix of selectable piezoelectric resonators | — | 1985-10-15 |
| 4542355 | Normal coordinate monolithic crystal filter | — | 1985-09-17 |
| 4486682 | Stress compensated quartz resonator having ultra-linear frequency-temperature response | Mitsuo Nakazawa, Theodore J. Lukaszek | 1984-12-04 |
| 4454443 | Quartz resonators for acceleration environments | Theodore J. Lukaszek | 1984-06-12 |
| 4435441 | Method of frequency trimming surface acoustic wave devices | Elio A. Mariani | 1984-03-06 |
| 4427913 | Acoustic diffractometer | Gerald J. Iafrate | 1984-01-24 |
| 4409711 | Method of fabricating acceleration resistant crystal resonators | John R. Vig | 1983-10-18 |
| 4403165 | Transducer isolation in surface acoustic wave processor | Elio A. Mariani | 1983-09-06 |
| 4389275 | Quartz resonator angle correction | — | 1983-06-21 |
| 4388146 | Analog correction of quartz resonator angle of cut | — | 1983-06-14 |
| 4365182 | Method of fabricating acceleration resistant crystal resonators and acceleration resistant crystal resonators so formed | John R. Vig | 1982-12-21 |