Patents by Inventor Teruo Ookawa

Teruo Ookawa 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).

  • Magnetic conveying device with non-magnetic guide rails
    Patent number: 5816385
    Abstract: A conveying device which is capable of conveying a magnetic workpiece at high speed with low vibration and low noise and which makes it possible to perform a highly accurate positioning. The conveying device includes a non-magnetic rail which has a guide surface for slidably guiding a first surface of the workpiece and a non-magnetic conveying belt which has a conveying surface coming into contact with a second surface of the workpiece and which is movable along the rail. The belt is driven to rotate by a driving device. A magnet is arranged at a position opposite to the rail with the belt therebetween and generates a magnetic force having a component force which causes the second surface of the workpiece to be brought into close contact with the belt and a component force which causes the first surface of the workpiece to be brought into contact with the rail.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: October 6, 1998
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Katsumi Ootsuki, Teruo Ookawa, Masatoshi Kajiwara