Patents by Inventor Nohumitsu Hori

Nohumitsu Hori 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).

  • Feed mechanism with a sliding member guided by a hydrostatic bearing
    Patent number: 5063322
    Abstract: A feed mechanism is constructed with a piezoelectric actuator embedded in the front end of a square sliding shaft, which is supported by hydrostatic guide surfaces formed on a guide base for sliding motion in the axial direction. A cooling jacket having a helical channel on its outside surface is provided at the periphery of the piezoelectric actuator. A part of pressurized fluid fed to the hydrostatic guide surfaces is led to the helical channel of the cooling jacket through a cooling oil feeding channel formed in the sliding shaft, and fluid in the helical channel is drained to a low pressure space through an oil discharging channel formed in the sliding shaft.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: November 5, 1991
    Assignee: Toyoda Koki Kabushiki Kaisha
    Inventors: Kazuhiko Sugita, Nohumitsu Hori, Yasumasa Nakane