Ceramtec Gmbh

Ellenberger & Poensgen Gmbh

Fridrich-Alexander-Universität Erlangen-Nürnberg

Friedrich-Alexander-Universitat Erlangen-Nürnberg

Alfons Kelnberger

Heinrich Wecker

Reiner Bindig

Hans-Jürgen Schreiner

Frank Ziermann

Peter Meckler

Kilian Friederich

Peter Greil

Michael Naumann

Markus Birner

Meinhard Kuntz

Peter Stingl

Hans-Jurgen Schreiner

Tobias Fey

Hans-Juergen Schreiner

Konrad Tzschentke

Mateusz Maria Juszczyk

Johanna Schmidt

Christoph Krause

Bodo Zierath

Jürgen Brandt

Katia Biotteau

Moritz Messmer

Tina Mirus

Mateusz Juszczyk

A method for producing a ceramic osseoconductive bone substitute material, the bone substitute material, intervertebral disk implants containing the substitute bone material, and to methods of using the bone substitute material.

Ceramic bone substitute material and method for the production thereof

An endoprosthetic component which is set up in the implanted state to penetrate in a controlled manner into adjoining bone material.

Endoprosthetic component

A ceramic component that consists of a shell, a filler material and pore channels that pass through the filler material, and can be used as an implant, particularly as a spacer.

Component consisting of ceramics, comprising pore channels

A ceramic component to be securely connected to an additional component in force-locked manner. A joint prosthesis comprising a ceramic sphere (), a metallic sleeve () and a base plate () with a cylindrical projection. The connection between the ceramic sphere and the base plate or shaft () is secured by a screw ().

Fastening ceramic components

An electromagnetic relay, in particular a motor vehicle relay, contains a magnet yoke, a relay coil, a hinged armature which is pivotable about an axis of rotation and on which a moving contact, as working or switchover contact, is retained relative to at least one fixed contact. A piezo actuator is provided, which keeps the working or switchover contact closed when the relay coil is de-energized as a result of the actuation of the piezo actuator.

Electromagnetic relay

The invention relates to a force module () for generating forces in a highly dynamic manner by assembling a plurality of piezo actuators () for connecting to a voltage source. To enable the force module () to generate forces in the range of a few 100 kN in a highly dynamic and spatially resolved manner, according to the invention it is proposed that the force module () consists of at least two sub-modules (), each having at least two piezo actuators () and their electrical contacting elements, and a controlling and protection module () for the piezo actuators () in the sub-modules (), wherein all electric contacting elements of the sub-modules () are fed into the controlling and protection module ().

Force module with sub-modules and a controlling and protection module for generating forces in a highly dynamic manner

A device for generating electrical energy in a rotating system for the purpose of supplying electric current to electronic components in the system, comprising external forces, acting on the system, that act on piezoelectrically active energy converters in the system, as a result of which electrical energy is generated, and comprising an electronic system for processing the generated electrical energy and transferring it to the components.

Device for generating energy in a rotating system

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Röthenbach, Germany

Alfons Kelnberger