Patents by Inventor Heinrich Pertsch

Heinrich Pertsch 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).

  • Method of producing a magnetic gate
    Patent number: 4443275
    Abstract: Magnetic gate, including a magnet having a magnetic pole with an at least partly flat surface, a semiconductor chip having an integrated circuit, a mechanically permeable metal piece, and means attaching the semiconductor chip to the magnetically permeable metal piece for minimizing mechanical stresses acting on the chip to eliminate piezo effects and method of production thereof.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: April 17, 1984
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wilhelm Ertl, Ulrich Lachmann, Heinrich Pertsch
  • Magnetic gate and method of production thereof
    Patent number: 4394190
    Abstract: Magnetic gate, including a magnet having a magnetic pole with an at least partly flat surface, a semiconductor chip having an integrated circuit, a mechanically permeable metal piece, and means attaching the semiconductor chip to the magnetically permeable metal piece for minimizing mechanical stresses acting on the chip to eliminate piezo effects and method of production thereof.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: July 19, 1983
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wilhelm Ertl, Ulrich Lachmann, Heinrich Pertsch
  • Magnetic gate and method of production thereof
    Patent number: 4369376
    Abstract: Magnetic gate, including a magnet having two poles, one of the poles having an at least partly flat surfaces, a magnetically permeable metal piece bridging the magnetic flux of the magnet from one to the other of the poles, and a semiconductor chip having an integrated circuit, the semiconductor chip being piezoelectrically unsensitive and being applied to the permeable metal piece, and method of production thereof.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: January 18, 1983
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wilhelm Ertl, Ulrich Lachmann, Heinrich Pertsch, Gunter Wirnharter