Patents by Inventor Xue-Qing Leng

Xue-Qing Leng 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).

  • Cutting method
    Patent number: 6346034
    Abstract: A cutting method of cutting a workpiece by moving the workpiece relatively to a cutting blade that has an annular cutting edge and rotates in a predetermined direction, the workpiece being moved in a direction at right angles to the rotary shaft of the cutting blade, wherein the cutting method comprises a cutting step of cutting the workpiece by moving the workpiece in a forward direction in respect to the rotational direction of the cutting blade at a position where the blade and the workpiece face each other, and a burr-trimming step for tracing the groove cut by the cutting step by moving the workpiece in a direction against the rotational direction of the cutting blade at a position where the blade and the workpiece face each other.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: February 12, 2002
    Assignee: Disco Corporation
    Inventor: Xue-Qing Leng