Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7385445 | High efficiency amplifier circuits having bypass paths | — | 2008-06-10 |
| 6465930 | Transducer with surface acoustic waves with low gap | — | 2002-10-15 |
| 6445265 | Device with acoustic waves guided in a fine piezoelectric material film bonded with a molecular bonding on a bearing substrate and method for making same | — | 2002-09-03 |
| 6414414 | Unidirectional transducer etched with surface acoustic waves | — | 2002-07-02 |
| 5793146 | Surface acoustic wave transducer having selected reflectivity | — | 1998-08-11 |
| 5721515 | High stability single-port saw resonator oscillator | Alan R. Northan | 1998-02-24 |
| 5545940 | Multitrack transversely folded surface acoustic wave structure | — | 1996-08-13 |
| 5530402 | Single sequential amplifier circuit | — | 1996-06-25 |
| 5426339 | Surface acoustic wave devices with mode changing characteristics | — | 1995-06-20 |
| 5406159 | Surface acoustic wave gratings having selected reflectivity | — | 1995-04-11 |
| 5374908 | Surface acoustic wave device for generating an output signal with only a symmetric or only an asymmetric vibration mode acoustic wave | — | 1994-12-20 |
| 5073763 | Group single-phase unidirectional transducers with 3/8.lambda.and 5/8.lambda. sampling | — | 1991-12-17 |
| 5061871 | Electrode structure with constant velocity and zero reflectivity | — | 1991-10-29 |
| 5051644 | Electrode structure with constant velocity and predetermined reflectivity | — | 1991-09-24 |
| 4910839 | Method of making a single phase unidirectional surface acoustic wave transducer | — | 1990-03-27 |
| 4902925 | Reflectionless transducer | — | 1990-02-20 |
| 4731595 | Resonator structure | — | 1988-03-15 |
| 4694266 | Notch filter | — | 1987-09-15 |
| 4670681 | Singly rotated orientation of quartz crystals for novel surface acoustic wave devices | — | 1987-06-02 |
| 4616197 | Resonator | — | 1986-10-07 |
| 4609890 | Bulk acoustic wave signal processing devices | Daniel E. Oates | 1986-09-02 |
| 4599587 | Impedance element | Clinton S. Hartmann | 1986-07-08 |
| 4499441 | Superconducting signal processing circuits | John T. Lynch, Alfredo Carlos Anderson, Richard S. Withers | 1985-02-12 |