Patents by Inventor Norbert Mika

Norbert Mika 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).

  • Cathode system for an X-ray tube
    Patent number: 5748701
    Abstract: A cathode system for an x-ray tube has an electron emitter and a further electrode arranged between electron emitter and the x-ray tube anode. This further electrode can be connected to a potential deviating from the potential of the electron emitter with a switching stage having a pulse-pause (on-off) ratio set to produce the desired tube current.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: May 5, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventors: Norbert Mika, Hannjoerg Bittorf
  • Cathode system for an x-ray tube
    Patent number: 5617464
    Abstract: A cathode system for an x-ray tube has an electron emitter and a further electrode arranged between electron emitter and the x-ray tube anode. This further electrode can be connected to a potential deviating from the potential of the electron emitter with a switching stage having a pulse-pause (on-off) ratio set to produce the desired average tube current.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: April 1, 1997
    Assignee: Siemens Aktiengesellschaft
    Inventors: Norbert Mika, Hannjoerg Bittorf
  • Mounting for an output window of an x-ray image intensifier
    Patent number: 4717860
    Abstract: An x-ray image intensifier having a tube bulb and an output window being mounted in a metal frame. The frame is inserted into the tube bulb and attached to the tube bulb in a region of the output window characterized by the output window being a glass window having a luminophor layer applied thereto, the output window being connected to the frame by only a single metal solder connection of soft solder so that the pane having the luminophor layer can be soldered to the frame without damaging the luminophor layer. Preferably, a peripheral edge of the window pane is free of the luminophor layer, and this peripheral edge has at least one adhesive layer deposited at the location for the solder connection.
    Type: Grant
    Filed: December 10, 1985
    Date of Patent: January 5, 1988
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hermann Christgau, Norbert Mika, Heinz Roehrich, Guenther Scholz
  • Tomographic apparatus for producing transverse layer images
    Patent number: 4193001
    Abstract: A computer-tomograph having a fan-shaped x-ray beam and two detector arrays. The two detector arrays are arranged in parallel with one another and side by side. Their lengths are dimensioned such that one detector array is suited for the area of the head and the second is suited for the area of the trunk of the patient. The total number of detectors of the detector arrays is the same, so that the resolution of the shorter detector array is finer than that of the longer one. In each case, two corresponding detectors of the respective rows are connected in parallel to an input of the measured value converter.
    Type: Grant
    Filed: August 16, 1978
    Date of Patent: March 11, 1980
    Assignee: Siemens Aktiengesellschaft
    Inventors: Reiner Liebetruth, Norbert Mika