Patents by Inventor Masanori Ohshiro

Masanori Ohshiro 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).

  • Mounting for plural piezoelectric vibrator units
    Patent number: 4112324
    Abstract: A piezoelectric vibrator unit has a substantially flat holder case which is provided on one side with a recess or recesses each encasing a piezoelectric vibrator plate. The bottom wall of each recess is provided therethrough with a port or ports each at a position which corresponds to an excitation electrode formed on the vibrator plate. Another side of the holder case is used for masking means for forming, for the micro-adjustment of vibration frequency, a vacuum evaporated film on the excitation electrode.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: September 5, 1978
    Assignee: Kabushiki-Kaisha Kinsekisha-Kenkyujo
    Inventors: Kazumasa Yamaguchi, Kunio Nasaki, Masanori Ohshiro