Patents by Inventor Naoteru Tsuda

Naoteru Tsuda 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).

  • Piezoelectrically driven tuning fork with damping means
    Patent number: 4328442
    Abstract: In a piezoelectric tuning fork of the type which is used as an electro-mechanical filter and wherein a tuning fork is directly supported by a supporting member extended from a terminal plate, the supporting member is surrounded with a vibration isolation or absorbing member which in turn is bonded or otherwise joined to both the supporting member and the terminal plate, whereby the noise output due to the transmission of external vibrations or impacts may be considerably suppressed.
    Type: Grant
    Filed: November 30, 1979
    Date of Patent: May 4, 1982
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiharu Tanaka, Naoteru Tsuda, Kazuhide Arase
  • Electromechanical reed filter
    Patent number: 4025879
    Abstract: Shock-absorbing members are provided in the vicinity of free ends of vibratory reeds of an electromechanical reed filter and deformable in at least two stages so as to stepwisely absorb external shocks being imparted to the filter for ensuring stability of the operation of the filter.
    Type: Grant
    Filed: December 16, 1975
    Date of Patent: May 24, 1977
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiharu Tanaka, Naoteru Tsuda, Kazuhide Arase