Patents by Inventor Yoshinori Takeuchui

Yoshinori Takeuchui 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).

  • Load/unload suspension device for a magnetic disc apparatus
    Patent number: 4605979
    Abstract: A slider equipped with a magnetic head is pressed on a magnetic disk surface under a constant pressure by a pressing member. The slider is loaded and unloaded by a loading/unloading mechanism. A driving unit of the loading/unloading mechanism has a shape memory alloy member which offers a shape memory effect based on the thermoelastic martensitic transformation, and a resilient member having a resilient force against the driving force of the shape memory alloy member. Moreover, the loading/unloading mechanism is arranged such that when the slide is loaded, the driving force of the loading/unloading mechanism is not applied to the pressing member supporting the slider.
    Type: Grant
    Filed: March 22, 1984
    Date of Patent: August 12, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Yohichi Inoue, Katsuyuki Tanaka, Yoshinori Takeuchui, Isao Koromegawa, Yuzoo Yamaguchi, Yokuo Saitoh