| |
 |
|
Class Information
Number: 367/164
Name: Communications, electrical: acoustic wave systems and devices > Signal transducers > Underwater type > Piezoelectric > Single element having a plurality of electrodes
Description: Subject matter wherein a plurality of electrodes on its surface form a plurality of discrete radiating areas.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7262542 |
Ultrasound radiation device into a material |
Aug. 28, 2007 |
| 6784600 |
Ultrasonic membrane transducer for an ultrasonic diagnostic probe |
Aug. 31, 2004 |
| 6640631 |
System and measuring sound velocity in material |
Nov. 4, 2003 |
| 6637268 |
Vibration displacement sensing system |
Oct. 28, 2003 |
| 6337835 |
Electromechanical converter and method of producing same |
Jan. 8, 2002 |
| 6317389 |
Ultrasound-signal radiating device |
Nov. 13, 2001 |
| 6108275 |
Phased beam transducer |
Aug. 22, 2000 |
| 5991239 |
Confocal acoustic force generator |
Nov. 23, 1999 |
| 5750272 |
Active and adaptive damping devices for shock and noise suppression |
May. 12, 1998 |
| 5550793 |
Unidirectional wave transducer |
Aug. 27, 1996 |
| 5530683 |
Steerable acoustic transducer |
Jun. 25, 1996 |
| 5471721 |
Method for making monolithic prestressed ceramic devices |
Dec. 5, 1995 |
| 5142511 |
Piezoelectric transducer |
Aug. 25, 1992 |
| 5072426 |
Self-monitoring shock wave hydrophone |
Dec. 10, 1991 |
| 5056069 |
Ultrasonic sensor |
Oct. 8, 1991 |
| 5001681 |
Monolaminar piezoelectric bender bar |
Mar. 19, 1991 |
| 4950936 |
Piezoelectric sandwich polymer transducer |
Aug. 21, 1990 |
| 4933919 |
Hydrophone |
Jun. 12, 1990 |
| 4914565 |
Piezo-electric transducer having electrodes that adhere well both to ceramic as well as to plastics |
Apr. 3, 1990 |
| 4835747 |
Compensating sensor device for a charge amplifier circuit used in piezoelectric hydrophones |
May. 30, 1989 |
| 4780860 |
Beam forming device |
Oct. 25, 1988 |
| 4734611 |
Ultrasonic sensor |
Mar. 29, 1988 |
| 4725994 |
Ultrasonic transducer with a multiple-folded piezoelectric polymer film |
Feb. 16, 1988 |
| 4709360 |
Hydrophone transducer with negative feedback system |
Nov. 24, 1987 |
| 4706229 |
Electroacoustic transducer |
Nov. 10, 1987 |
| 4704556 |
Transducers |
Nov. 3, 1987 |
| 4399387 |
Ultrasonic wave transducer |
Aug. 16, 1983 |
| 4347593 |
Piezoceramic tubular element with zero end displacement |
Aug. 31, 1982 |
| 4344159 |
Ultrasonic transducer |
Aug. 10, 1982 |
| 4315324 |
Directly modulated sonobuoy transmitter using surface acoustic wave sensor |
Feb. 9, 1982 |
| 4296348 |
Interdigitated electrode ultrasonic transducer |
Oct. 20, 1981 |
| 4268912 |
Directional hydrophone suitable for flush mounting |
May. 19, 1981 |
| 4228532 |
Piezoelectric transducer |
Oct. 14, 1980 |
| 4173009 |
Ultrasonic wave transducer |
Oct. 30, 1979 |
| 4170185 |
Preventing marine fouling |
Oct. 9, 1979 |
| 4097835 |
Dual transducer arrangement for ultrasonic imaging system |
Jun. 27, 1978 |
| 4034332 |
Ultrasonic transmitting and receiving devices using dielectric transducers |
Jul. 5, 1977 |
|
|
|
