Patents by Inventor Hannjoerg Bittorf

Hannjoerg Bittorf 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