Patents by Inventor Ralf Matwin

Ralf Matwin 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).

  • Rotary scanning device
    Patent number: 5422771
    Abstract: A rotary scanning device is proposed with a rotary body carrying at its periphery a plurality of magnetic recording heads which can be driven by associated recording amplifiers. The individual recording amplifiers are accommodated on circuit boards which are mounted in a paddle-wheel configuration between two annular conductor boards by means of holders. The two annular conductor boards are rotationally locked to the rotary body. The circuit boards have a forward inclination in the direction of rotation of the rotary body.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: June 6, 1995
    Assignee: U.S. Philips Corporation
    Inventors: Manfred Willomitzer, Ralf Matwin, Hartmut Willmann