Patents by Inventor Tsuyoshi Shibuya

Tsuyoshi Shibuya 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).

  • Piezoelectric actuator
    Patent number: 4647808
    Abstract: An actuator comprises a piezoelectric element and a mechanical amplifier. Displacement caused by the piezoelectric effect of the piezoelectric element is amplified mechanically by a lever-link system having a lever portion and a fulcrum. The lever-link system comprises multiple steps. The amplified displacement is effectively provided by a transmitting arm for use in a electronic equipment such as printers.
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: March 3, 1987
    Assignee: Tokyo Juki Industrial Co., Ltd.
    Inventor: Tsuyoshi Shibuya
  • Piezoelectric actuator
    Patent number: 4644213
    Abstract: A mechanical amplifier for a piezoelectric actuator employs a lever-link system having a lever and a fulcrum to amplify a displacement caused by the piezoelectric effect of the piezoelectric element. A fulcrum supporting a last amplified lever forms a semi-pivotal construction to strengthen the stiffness of the amplifier. The invention converts electrical energy into mechanical energy for application to a printer or other electronic instruments.
    Type: Grant
    Filed: January 28, 1986
    Date of Patent: February 17, 1987
    Assignee: Tokyo Juki Industrial Co., Ltd.
    Inventor: Tsuyoshi Shibuya