1
Ulrich Schaetzle, Todor Sheljaskov, Reinhard Lerch: Ultrasound transducer for diagnostic and therapeutic use. Siemens Aktiengesellschaft, Hill & Simpson, October 20, 1998: US05823962 (201 worldwide citation)

An ultrasound transducer for diagnostic and therapeutic generates ultrasound waves of different wavelengths in diagnostics mode or therapy mode. The ultrasound transducer has an n.times..lambda./4 matching layer for a propagation medium adjoining the ultrasound transducer, and a piezoelectric ultras ...


2
Fritz Breimesser, Gunther Grabner, Reinhard Lerch: Ultrasonic transducer. Siemens Aktiengesellschaft, Kenyon & Kenyon, June 9, 1987: US04672591 (119 worldwide citation)

An ultrasonic transducer comprises a support body, a piezoelectric layer of a material with a relatively high dielectric constant and high acoustic impedance, a first impedance matching layer and a second impedance matching layer (10). The first matching layer consists of silicon.


3
Wolfram Wersing, Karl Lubitz, Reinhard Lerch, Hans Kaarmann, Martina Vogt: Ultrasound array having trapezoidal oscillator elements and a method and apparatus for the manufacture thereof. Siemens Aktiengesellschaft, Hill Van Santen Steadman & Simpson, September 3, 1991: US05045746 (34 worldwide citation)

An ultrasound array has a number of oscillator elements arranged side-by-side, each oscillator element having a trapezoidal cross-section. The oscillator elements are separated from each other by incisions having non-parallel walls, which are co-planar with surfaces of the piezoelectric material com ...


4
Reinhard Lerch: Ultrasonic imaging system. Siemens, Thomas H Jackson, October 1, 1985: US04543829 (30 worldwide citation)

Ultrasonic imaging system with a linear array having several transducer elements of which a respective group of commonly controlled transducer elements forms one beam aperture and to which one transmitting system and one receiving system is allocated. A delay time is digitally set for each transduce ...


5
Reinhard Lerch, Gerhard M Sessler: Stretched piezopolymer transducer with unsupported areas. Toren McGeady Stanger, December 10, 1985: US04558249 (29 worldwide citation)

In the disclosed transducer, a frame supports the edges of a piezopolymer sheet coated on both faces with electrodes, while a holding structure supports an area but leaves a larger area of the central portion of the sheet unsupported. According to preferred embodiments, the frame stretches the sheet ...


6
Reinhard Lerch, Gunther Grabner: Ultrasonic sensor. Siemens Aktiengesellschaft, Kenyon & Kenyon, July 16, 1985: US04528853 (13 worldwide citation)

An ultrasonic sensor for determining objects in air or other gaseous media is disclosed. The sensor comprises a first ultrasonic transducer having a piezoelectric transmitter. A reflector is provided having a concave surface facing the first ultrasonic transducer which forms a segment of an ellipsoi ...


7
Reinhard Lerch: Ultrasonic transducer system. Siemens Aktiengesellschaft, Thomas H Jackson, January 13, 1987: US04635484 (9 worldwide citation)

An ultrasonic transducer system is disclosed consisting of a support body (2), a radiating layer (8,9), a first .lambda./4 matching layer (10,11) and a second .lambda./4 matching layer (12,13). According to the invention, at least two ultrasonic transducers (4,6) with different and predetermined mid ...


8
Reinhard Lerch: Ultrasonic imaging system. Siemens, Thomas H Jackson, October 1, 1985: US04543828 (1 worldwide citation)

Ultrasonic imaging system with a linear array having several transducer elements of which a respective group of commonly controlled transducer elements forms one beam aperture and to which one transmitting system and one receiving system is allocated. A delay time is digitally set for each transduce ...


9
Wolfrasm Wersing, Karl Lubitz, Reinhard Lerch, Hans Kaarmann, Martina Vogt: Ultrasound array having trapezoidal oscillator elements and a method and apparatus for the manufacture thereof. Siemens Aktiengesellschaft, Hill Steadman & Simpson, August 8, 1995: USRE035011

An ultrasound array has a number of oscillator elements arranged side-by-side, each oscillator element having a trapezoidal cross-section. The oscillator elements are separated from each other by incisions having non-parallel walls, which are co-planar with surfaces of the piezoelectric material com ...


10
Bassem Baffoun, Reinhard Lerch, Alexander Sutor, Christian Weistenhöfer: Magnetostrictive microloudspeaker. Siemens Audiologische Technik, Laurence A Greenberg, Werner H Stemer, Ralph E Locher, March 25, 2014: US08682009

An acoustic actuator includes a support layer, in which a self-supporting structure is defined and connected to the support layer by at least two suspensions, at least one magnetostrictive layer which has been disposed on the support layer and is provided at least in part on the self-supporting stru ...