Patents by Inventor Takayasu Asano

Takayasu Asano 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).

  • Method of machining workpeices
    Patent number: 5655423
    Abstract: A machine tool is provided having a spindle mounted for movement in a direction parallel to the spindle axis, the Z direction, and a direction perpendicular to the spindle axis, the X direction. The machine tool includes a machine bed and has means mounted to the machine bed for supporting at least one tool. At least one spindle is rotatably supported on the machine bed and includes a chuck for supporting a workpiece. The machine tool includes means mounting the spindle to the machine bed for movement in the Z direction and for independent movement in the X direction. Accordingly, the workpiece supporting means may be moved proximate to the tool supporting means and the workpiece may be engaged by a tool. The machine tool may further include feeder means for feeding bar stock to the workpiece supporting means so that the bar stock may be engaged by a tool. The machine tool may also include workpiece transfer means for facilitating the transfer of workpieces to and from the workpiece supporting means.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: August 12, 1997
    Assignee: Okuma America Corporation
    Inventors: Osamu Nishio, Norio Tanaka, Takayasu Asano, Eddie M. Godwin
  • Machine tool with cantilevered chuck movable along the X and Z axes
    Patent number: 5644961
    Abstract: A machine tool is provided having a spindle mounted for movement in a direction parallel to the spindle axis, the Z direction, and a direction perpendicular to the spindle axis, the X direction. The machine tool includes a machine bed and has means mounted to the machine bed for supporting at least one tool. At least one spindle is rotatably supported on the machine bed and includes a chuck for supporting a workpiece. The machine tool includes means mounting the spindle to the machine bed for movement in the Z direction and for independent movement in the X direction. Accordingly, the workpiece supporting means may be moved proximate to the tool supporting means and the workpiece may be engaged by a tool. The machine tool may further include feeder means for feeding bar stock to the workpiece supporting means so that the bar stock may be engaged by a tool. The machine tool may also include workpiece transfer means for facilitating the transfer of workpieces to and from the workpiece supporting means.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: July 8, 1997
    Assignee: Okuma America Corporation
    Inventors: Osamu Nishio, Norio Tanaka, Takayasu Asano, Eddie M. Godwin
  • Abnormal state detecting apparatus of a machine tool
    Patent number: 5142210
    Abstract: An abnormal state detecting apparatus of a machine tool having a servomotor. The apparatus is provided with a device for detecting an abnormal acceleration and an abnormal torque of the servomotor and a device for detecting an abnormal operation state of the servomotor from the directions of the detected acceleration and torque. When the torque, acceleration and operation state are all abnormal, the machine tool is judged to be in an abnormal state and the servomotor is controlled, thereby protecting the machine tool from an impact in an abnormal operation state.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: August 25, 1992
    Assignee: Okuma Machinery Works Ltd.
    Inventors: Takayoshi Kojima, Satoshi Eguchi, Takayasu Asano