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| Number | Title | Issue Date |
| 6741147 | Method and apparatus for adjusting the resonant frequency of a thin film resonator A thin film resonator comprising a piezoelectric material and having a controllable or tunable resonant frequency. The resonator is formed on a substrate having a cavity formed therein below the piezoelectric film material. A bending electrode is disposed within the... | 05/25/2004 |
| 5545943 | Variable air-gap type driving device The variable air-gap type driving detector of the present invention for obtaining low speed and high torque outputs required to drive, for example, joints of industrial robots is provided with an elastic supporting means 22, whose one end is supported on ... | 08/13/1996 |
| 5430597 | Current interrupting device using micromechanical components A circuit interruption device having a plurality of micromechanical switches mounted on a substrate in a parallel-series array. The array includes a plurality of line branches connected in parallel in a circuit line. Each of the line branches has at least... | 07/04/1995 |
| 4562375 | Piezoelectric transducer, notably for pressure measurement In a pressure transducer of the piezoelectric type, a resonator (10) is made up of a pellet (16) mounted inside an element designed to be subjected to the action of a pressure on its exterior face (18). The pellet (16) and the element (12) are cut in the ... | 12/31/1985 |
| 4464598 | Piezoelectric resonator with "drawer" A quartz resonator drawer is housed in a monolithic block cabinet made of quartz. Air gap electrodes are provided on interior walls of the cabinet. The resonator drawer can be removed from the cabinet without dissemblying the electrodes or the cabinet.... | 08/07/1984 |
| 4317059 | Acceleration and temperature compensated piezoelectric bi-resonator A piezoelectric bi-resonator with electrodes not adhering to the crystal, comprising at least first and second plates in dielectric material on which plates are deposited respectively first and second electrodes, a third plate in dielectric material havin... | 02/23/1982 |
