Patents by Inventor Yoshiharu Horikawa

Yoshiharu Horikawa 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).

  • Apparatus for holding tools
    Patent number: 5409322
    Abstract: An improved tool holding apparatus includes a collet chuck or a steel ball chuck that clamps a pull bolt, which defines the forward end portion of a tool, by resilient force applied thereto from a coned disc spring. The tool holding apparatus further includes a temporary clamping device which is buried in a sleeve to temporarily clamp the pull bolt. A clamping force applied by the temporary clamping device is set at such a level that an arm can draw the tool from a main spindle by gripping the rear end portion of the tool.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: April 25, 1995
    Assignee: Matsuura Machinery Co., Ltd.
    Inventors: Yoshiharu Horikawa, Shinichi Yokoi, Takanori Matsushima
  • Pallet storage device and a pallet exchange device for a machine tool, and a lathe with an automatically removable pallet
    Patent number: 5222285
    Abstract: A plurality of pallets for exchanging and fixing workpieces are placed on a plurality of respective tables supported vertically with spacing between one another, and the tables are rotated to transfer a required pallet to the predetermined exchange position to perform an exchange operation of the pallet by a pallet exchange device.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: June 29, 1993
    Assignee: Matsuura Machinery Corporation
    Inventor: Yoshiharu Horikawa
  • Centralized lubrication apparatus
    Patent number: 5193646
    Abstract: Branch pipes are provided at a plurality of locations along a supply conduit of a lubrication oil circulation system comprising a storage tank, an oil supply pump and the supply conduit. The branch pipes are connected to oil supply tanks via shut-off control valves, thus constituting the oil supply systems. Oil supply devices for apparatuses to be lubricated are connected to the respective oil supply systems.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: March 16, 1993
    Assignee: Matsuura Machinery Corporation
    Inventors: Yoshiharu Horikawa, Kazuya Kawada, Youichi Yamada
  • Tool storage apparatus
    Patent number: 5169373
    Abstract: The tool storage apparatus according to the present invention includes holder units consisted by a strut and a multiplicity of holders adapted to hold tools. Holders are arranged in two rows and in each row, the holders are arranged one above another and in the adjacent rows the openings for receiving tools are opened in the opposite direction relative to each other.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: December 8, 1992
    Assignee: Matsuura Machinery Corporation
    Inventor: Yoshiharu Horikawa