Patents Assigned to CeramTec GmbH
  • Patent number: 10709564
    Abstract: The invention relates to a knee endoprosthesis comprising a femoral component (1) which has two condylar surfaces (1a, 1b) for anchoring on the distal femur, comprising a tibial component (2) for anchoring on the proximal tibia, and comprising sliding surfaces between the two components (1, 2). It is proposed according to the invention that the entire femoral component (1), but at least its condylar surfaces (1a, 1b) are made of a solidly sintered ceramic for articulation with the tibial component (2), so that the knee endoprosthesis will have the least possible amount of abrasion with optimal reproduction of the anatomical and kinematic properties of the natural knee joint, in particular through suitable combinations of materials and by reducing the abrasion-generating surfaces.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: July 14, 2020
    Assignee: CeramTec GmbH
    Inventor: Wilhelm Blömer
  • Patent number: 10682708
    Abstract: The invention relates to a carrier tool (1) comprising a clamping element (2) with a clamping element projection (3) and comprising a cutting insert (4) with a clamping recess (5) on the cutting insert surface (13) for machining workpieces. The clamping recess (5) has an annular indentation (9) with a recess base (7), and the indentation (9) transitions from the recess base (7) into the cutting insert surface (13) via an annular surface (8). The indentation (9) surrounds an elevation (10), the tip (11) of which lies above the recess base (7) and below the cutting insert surface (13). The clamping element projection (3) engages into the clamping recess (5) and thus clamps same on the carrier tool (1).
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: June 16, 2020
    Assignee: CERAMTEC GMBH
    Inventor: Uwe Henzler
  • Patent number: 10593963
    Abstract: The invention relates to an anode and electrolyte and cathode in direct material contact in fuel cell applications, so that the anode and electrolyte, and the cathode and electrolyte, particularly at temperatures >400° C., can react in a solid chemical manner. Said reaction results in that the material of the anodes can diffuse into the electrolyte and vice versa, and the material of the cathodes can diffuse into the electrolyte or vice versa. The effect thereof is the modification of the electrical energy yield of the fuel cells. In order to prevent said effect, it is proposed according to the invention that a blocking layer is disposed between the electrolyte and anode and electrolyte and cathode and is made of areas having opened and closed pores and that the functional penetration paths for the diffusion are formed by the frame structure thus created.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: March 17, 2020
    Assignee: CeramTec GmbH
    Inventors: Claus Peter Kluge, Stefan Stolz
  • Patent number: 10568214
    Abstract: A method for producing a copper multi-level metallization on a ceramic substrate consisting of AlN or Al2O3. High power regions with metallization having a high current-carrying capacity and low power regions with metallic coatings having a low current-carrying capacity are created on one and the same ceramic substrate. The metallization is printed multiple times in the high power range.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: February 18, 2020
    Assignee: CeramTec GmbH
    Inventors: Sigurd Adler, Roland Dilsch, Alfred Thimm
  • Patent number: 10478902
    Abstract: A cutting tool for radial and axial recessing and for lateral motion for so-called grooving of primarily metallic materials, having a clamping holder and a cutting element base, fastened to the clamping holder, on which a cutting element rests, the cutting element being pressed onto the cutting element base by a clamping finger of a clamping claw, and the cutting element being guided on the cutting element base with a prism.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: November 19, 2019
    Assignee: CeramTec GmbH
    Inventors: Nebojsa Sevdic, Uwe Stemmer, Heinz Kressel
  • Patent number: 10392785
    Abstract: The invention relates to a control cartridge for single-lever mixer taps, comprising a housing in which a ceramic base disk and a rotatable and displaceable ceramic control disk resting on the base disk are situated. An inlet for the cold water and hot water, respectively, and an outlet for the mixed water are situated in the base disk, and the mixed water is diverted in the control disk and leaves the control cartridge via the outlet in the base disk. In order for automatic scalding protection to be integrated into the control cartridge, i.e.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: August 27, 2019
    Assignee: CERAMTEC GMBH
    Inventor: Josef Leinen
  • Patent number: 10328181
    Abstract: 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.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: June 25, 2019
    Assignees: CERAMTEC GMBH, FRIDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG
    Inventors: Heinrich Wecker, Alfons Kelnberger, Peter Greil, Tobias Fey, Johanna Schmidt, Bodo Zierath
  • Patent number: 10327323
    Abstract: To provide more space for additional circuit elements (coils, capacitors) and/or to allow the accommodation of additional circuit elements required for shielding the circuits, the metallization regions are arranged one over the other in at least two metallization layers. The carrier body has a surface on which sintered metallization regions are arranged in a first metallization layer, said metallization regions carrying electronic components and/or being structured such that the metallization regions form resistors or coils. The metallization regions are covered, together with the components and/or the resistors or coils, by a ceramic plate, and optionally additional metallization regions are arranged in additional metallization layers on the ceramic plate and each metallization region is covered by a ceramic plate. Sintered metallization regions are arranged in a metallization layer for the purpose of accommodating circuit elements on the uppermost ceramic plate facing away from the cooling elements.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: June 18, 2019
    Assignee: CERAMTEC GMBH
    Inventors: Alexander Dohn, Roland Dilsch, Roland Leneis
  • Patent number: 10307828
    Abstract: The invention relates to a cutting insert (1) for installation in carrier tools for machining workpieces, comprising a top side (2), a bottom side (3), and side surfaces (4) connecting the top side (2) and the bottom side (3), wherein a peripheral protective chamfer (5) having an upper edge (6) adjoining the top side (2) of the cutting insert (1) and having a lower edge (7) adjoining the side surfaces (4) is arranged at the transition from the top side (2) to the side surfaces (4), wherein the upper edge (6) forms cutting edges (9) and cutting corners (10) and, in the region of the cutting edges (9), the lower edge (7) transitions into a cutting-edge clearance angle surface (8) having an edge clearance angle of 3° to 11°. For improved edge stability in drawn cuts, it is proposed that, in the region of the cutting corners (10), the lower edge (7) of the protective chamfer (5) transitions into a corner clearance angle surface (11) having an edge clearance angle of 3° to 5°.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: June 4, 2019
    Assignee: CERAMTEC GMBH
    Inventor: Alexander Kiemele
  • Patent number: 10247316
    Abstract: The invention relates to a control cartridge for single-lever mixing taps, comprising a housing having a cylindrical housing wall and a base having a borehole for an inlet for cold water and a borehole for an inlet for hot water. Three ceramic disks are situated one above the other on the base, namely, a lower base disk having a borehole for the inlet for hot water and a borehole for the inlet for cold water, a rotatable and displaceable ceramic control disk which rests on the base disk and has a control edge on the circumferential surface, and an upper bearing disk which is sealed off from the housing or the housing wall. In order for mixed water to be dischargeable either laterally or vertically with the same installation space or the same installation height and installation diameter, it is proposed that the base and the base disk each have a mixed water outlet in addition to the two inlets for cold water and hot water.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: April 2, 2019
    Assignee: CERAMTEC GMBH
    Inventor: Josef Leinen
  • Patent number: 10239794
    Abstract: A sintered molded article includes a ceramic of ?/?-sialon having a grain boundary phase, the grain boundary phase containing at least one hard material formed in situ as an additional phase. A method for the production of the sintered molded article uses at least the following compounds as a starting material: Si3N4, AlN, and, if applicable, Al2O3, at least one oxide of the rare earths, and at least one oxide of the element titanium.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: March 26, 2019
    Assignee: CERAMTEC GMBH
    Inventors: Volker Dietrich, Moritz Stahl, Kilian Friederich, Gert Richter
  • Patent number: 10207958
    Abstract: A method for producing metal coatings on ceramic substrates for establishing electrical contact, and ceramic substrates having metal coatings. More particularly, the invention relates to the production of weldable and solderable metal coatings on ceramic substrates.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: February 19, 2019
    Assignee: CeramTec GmbH
    Inventors: Klaus Herrmann, Roland Leneis, Alfred Thimm, Alexander Dohn
  • Patent number: 10165681
    Abstract: A method for producing plated-through holes in printed circuit boards and to printed circuit boards produced in this manner.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: December 25, 2018
    Assignee: CeramTec GmbH
    Inventors: Alfred Thimm, Klaus Herrmann
  • Patent number: 10130734
    Abstract: An endoprosthetic component which is set up in the implanted state to penetrate in a controlled manner into adjoining bone material.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: November 20, 2018
    Assignee: CERAMTEC GMBH
    Inventors: Alfons Kelnberger, Heinrich Wecker, Frank Ziermann, Mateusz Juszczyk
  • Patent number: 10098742
    Abstract: 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.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: October 16, 2018
    Assignee: CeramTec GmbH
    Inventors: Meinhard Kuntz, Heinrich Wecker, Alfons Kelnberger, Kilian Friederich, Katia Biotteau, Moritz Messmer
  • Patent number: 10047013
    Abstract: Zirconium oxide material and a sintered molded body produced from the material. The zirconium oxide is present in the tetragonal phase in an amount of 70 to 99.9 vol.-%. The tetragonal phase is chemically stabilized with rare-earth oxides. The sintered moldings can be used, e.g., in the medical field as implants or as dental prostheses.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: August 14, 2018
    Assignee: CeramTec GmbH
    Inventors: Meinhard Kuntz, Kilian Friederich, Lukas Gottwik, Andreas Morhardt, Juliane Ehrlich
  • Patent number: 10028846
    Abstract: The invention relates to a method for checking ceramic ball heads (3) for hip-joint prostheses which have a receiving space (8) with a conical side face with a clamping cone angle ? and a cone inlet (7) and are subjected to a pressure in order to check areas of the receiving space (8). To ensure that all the checked ball heads (3) also remain functionally ready for relevant, oblique in vivo load situations without suffering damage, it is proposed that only the area of the cone inlet (7) is subjected to a radial force perpendicular to the longitudinal axis of the ball head (3).
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: July 24, 2018
    Assignee: CeramTec GmbH
    Inventors: Markus Flohr, Carsten Upmann, Hendrik Bertmaring
  • Patent number: 10031034
    Abstract: A method, a device and use for measurement of a force with a pressure sensor made of a piezoelectric material. The change in the capacitance of the pressure sensor is used for force measurement so that no load amplifier is necessary for measurement and as a result the measuring system as a whole is miniaturized.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: July 24, 2018
    Assignee: CeramTec GmbH
    Inventors: Reiner Bindig, Tobias Schmidt, Hans-Jürgen Schreiner
  • Patent number: 10008661
    Abstract: The invention relates to a piezoelectric lead-free material based on bismuth sodium titanate, to a method for the production thereof, and to the use thereof.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: June 26, 2018
    Assignee: CeramTec GmbH
    Inventors: Friederike Apel, Hans-Juergen Schreiner, Claudia Voigt
  • Publication number: 20170348464
    Abstract: The invention relates to components for fusing vertebral bodies and to methods for the production and use thereof.
    Type: Application
    Filed: July 22, 2015
    Publication date: December 7, 2017
    Applicant: CeramTec GmbH
    Inventors: Heinrich WECKER, Alfons KELNBERGER, Mateusz JUSZCZYK