Ceramtec Gmbh

Hoechst Ceramtec Aktiengesellschaft

Stn Atlas Elektronik Gmbh

Kurt Handschuh

Hans-Jürgen Schreiner

Reiner Bindig

Raouf Ben Amor

Axel Brenner

Michael Fripan

Jürgen Schmidt

Claudia Voigt

Konrad Tzschentke

Thomas Uhl

Georg Wiesend

Heinrich Berthold

Patterns detection to input data containing a plurality of transactions, each transaction having at least one item, is carried out in the following way. Filter conditions for interesting patterns are received, and a first wet of filter conditions applicable in connection with generation of candidate patterns is determined.

Apparatus and method for controlling the machining of workpieces using piezoceramic transducers

A method for producing a component as monolithic multilayer element or multilayer bending element, comprising at least two layer stacks each having 1-400 layers of piezoelectrically active material which are separated by at least one layer stack comprising 0-100 layers of piezoelectrically inactive material, wherein the inner electrodes of the active layer stacks contain at least the following materials: a) pure silver b) electrically non-conductive material having a proportion by weight of 0% to at most 30% and the material of the piezoelectrically active layers has a sufficient activity in a thermal process such that sintering below the melting point of the material of the inner electrodes is possible and performed.

Monolithic bending element

A method of producing a composite ultrasonic transducer having transducer elements comprising piezoelectric ceramic, with the elements being dispersed in plastic and radiating essentially in the longitudinal direction. To reduce production costs, in several method steps, a plurality of flat ceramic bodies (,) having a plurality of parallel, slot-like openings (,) that are closed on all sides are inserted into a casting mold (,), and the casting mold (,) is filled with plastic (,). After hardening, the resulting ingot (,) is unmolded, and, on the unmolded ingot (,), the ceramic material (,) on the end surfaces away from one another and extending transversely to the longitudinal direction of the openings (,) is removed to the point that the plastic material (,) imbedded in the openings (,) is exposed at the end surfaces (,).

Method for producing a composite ultrasonic transducer

To produce a piezoelectric tone generator, a layer of filler-free bonding agent whose dynamic viscosity is 800 to 18,000 mPa.multidot.s is applied between a metallized carrier plate and a piezoceramic wafer. The package composed of carrier plate, bonding layer and ceramic plate is pressed together, the quantity of bonding agent being chosen to be so large that during pressing a bead covering the edge of the ceramic wafer is formed. The bonding layer is cured thereafter, firstly catalytically or thermally and then by UV irradiation.

Piezoelectric tone generator and a process for producing it

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Eckental, Germany

Kurt Handschuh