Patents by Inventor Ekkehard Messner

Ekkehard Messner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6936963
    Abstract: A process for encapsulating a component made of organic semiconductors is provided which includes steps of: a) providing a housing including a substrate with electrical connections and a cover; b) mixing a soldering glass with at least one of a binder and a solvent; c) applying the soldering glass at least to the cover, in the form of an encircling bank; d) expelling the binder or solvent; e) sintering-on of the solder; f) covering the substrate with layers which represent the semiconductor component together with electrodes; g) placing the cover onto the substrate; and h) locally heating the soldering glass by means of a light source with a predetermined peak wavelength, wherein the housing parts and soldering glass are matched to one another such that their coefficients of thermal expansion differ from one another by less than 1.0×10?6K?1.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: August 30, 2005
    Assignee: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
    Inventors: Alfred Langer, Ekkehard Messner
  • Publication number: 20030222061
    Abstract: A process for encapsulating a component made of organic semiconductors is provided which includes steps of: a) providing a housing including a substrate with electrical connections and a cover; b) mixing a soldering glass with at least one of a binder and a solvent; c) applying the soldering glass at least to the cover, in the form of an encircling bank; d) expelling the binder or solvent; e) sintering-on of the solder; f) covering the substrate with layers which represent the semiconductor component together with electrodes; g) placing the cover onto the substrate; and h) locally heating the soldering glass by means of a light source with a predetermined peak wavelength, wherein the housing parts and soldering glass are matched to one another such that their coefficients of thermal expansion differ from one another by less than 1.0×10−6K−1.
    Type: Application
    Filed: May 2, 2003
    Publication date: December 4, 2003
    Applicant: Patent-Treuhand-Gesellschaft fur Elektrische Gluehlampen mbH
    Inventors: Alfred Langer, Ekkehard Messner
  • Publication number: 20020179919
    Abstract: A process for the production of an optoelectronic semiconductor component, and the component formed by the process. The component includes a chip which is provided with electrical terminals, and being fitted in a package which functionally consists of at least a base body and a top, both consisting of glass.
    Type: Application
    Filed: April 3, 2002
    Publication date: December 5, 2002
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN mbH
    Inventors: Manfred Deisenhofer, Ekkehard Messner, Harald Strixner
  • Patent number: 5808411
    Abstract: To inhibit, or at least sharply attenuate, fluorescence of a quartz-glass velope (10) surrounding a light source (11), such as a halogen incandescent lamp, a high-pressure discharge lamp, or the like, when the quartz glass is subjected to ultraviolet (UV) radiation from the light source, and has been doped with a UV radiation absorbing material, typically a cerium, or cerium-titanium doping, the quartz-glass envelope is additionally doped with barium and boron. The barium/boron in the doping is, preferably, present in quantities of between about 0.008 and 1.25%, by weight, with reference to the undoped quartz glass. Barium metaborate can be used, optionally together with praseodymium to attenuate the fluorescence. Preferably, barium and boron form a combined doping substance with cerium, in form of a cerium aluminate and metaborate, added to the starting material for the quartz glass, and before the quartz glass is fused from quartz sand or pulverized quartz crystal.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: September 15, 1998
    Assignee: Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbH
    Inventors: Manfred Deisenhofer, Dieter Meiss, Ekkehard Messner
  • Patent number: 5589734
    Abstract: To inhibit, or at least sharply attenuate, fluorescence of a quartz-glass velope (10) surrounding a light source (11), such as a halogen incandescent lamp, a high-pressure discharge lamp, or the like, when the quartz glass is subjected to ultraviolet (UV) radiation from the light source, and has been doped with a UV radiation absorbing material, typically a cerium, or cerium-titanium doping, the quartz-glass envelope is additionally doped with praseodymium or a praseodymium compound, such as praseodymium oxide or praseodymium aluminate. The pure praseodymium in the doping is, preferably, present in quantities of between about 0.008 and 1.25%, by weight, with reference to the undoped quartz glass. Barium metaborate can also be used, preferably together with praseodymium to attenuate the fluorescence.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: December 31, 1996
    Assignee: Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbH
    Inventors: Manfred Deisenhofer, Dieter Meiss, Ekkehard Messner