Patents by Inventor Giorgio Vigini

Giorgio Vigini 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).

  • Driver circuit for printer electromagnet
    Patent number: 4048665
    Abstract: A circuit for energizing the electromagnet of the print head of a high speed impact printer, wherein such circuit operates effectively with an unregulated supply voltage by providing energization current pulses whose level and duration are dependent on the present level of such supply voltage.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: September 13, 1977
    Assignee: Honeywell Information Systems Italia
    Inventors: Bruno Lia, Giorgio Vigini