Patents by Inventor Yoshitaka Munakata

Yoshitaka Munakata 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).

  • Multifunction concentric plug
    Patent number: 4367001
    Abstract: A multifunction concentric plug comprises a large-size concentric plug portion and a small-size concentric plug portion. When the portions are combined, a sleeve of relatively small-size concentric plug portion is arranged in a hollow of a sleeve of the large-size concentric plug portion so that the sleeve of the large-size concentric plug portion is aligned with the sleeve of the small-size concentric plug portion. The tip of the small-size concentric plug portion electrically contacts a core conductor of the large-size concentric plug portion. A combining means is provided in knobs of the large-size and small-size concentric plug portions whereby the large-size and small-size concentric plug portions can be securely combined with each other.
    Type: Grant
    Filed: September 18, 1980
    Date of Patent: January 4, 1983
    Assignee: Sony Corporation
    Inventor: Yoshitaka Munakata