Patents by Inventor Kazui Nagata

Kazui Nagata 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).

  • Ribbon cassette for reinking only one longitudinal half of a Mobius ribbon
    Patent number: 4968161
    Abstract: An endless inked ribbhon provided in a case is twisted in the form of a Mobius band. An inverting device is provided in the case for inverting the inked ribbon, and a reinking device is provided adjacent the inverting device for supplying ink to a lower half portion of the ribbon. The upper half portion of the ribbon, which has been supplied with the ink during the preceding cycle of the operation of the ribbon, is used for printing dots on paper.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: November 6, 1990
    Assignees: Citizen Watch Co., Ltd., Union Chemical Co., Ltd.
    Inventors: Yoshio Kunitomi, Kazui Nagata