Patents by Inventor Sigeru Kizaki

Sigeru Kizaki 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).

  • Sealed housings for a subminiature piezoelectric vibrator
    Patent number: 4191905
    Abstract: A housing for a subminiature piezoelectric quartz crystal vibrator element, in which a glass substrate has a recess formed in an upper surface thereof, the subminiature quartz crystal vibrator element being supported such as to be positioned within a periphery of the recess in the upper surface and separated by fixed distances from surfaces of the recess, a cover is disposed upon the glass substrate to hermetically seal the quartz crystal vibrator element between the cover and the glass substrate.
    Type: Grant
    Filed: May 19, 1978
    Date of Patent: March 4, 1980
    Assignee: Citizen Watch Company Limited
    Inventors: Yuh Yasuda, Sigeru Kizaki, Yukio Miya