Patents by Inventor Yoshihito Uno

Yoshihito Uno 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).

  • Constant velocity joint having cross grooves
    Patent number: 5186687
    Abstract: A constant velocity joint of the cross groove type wherein the outer joint member and the inner joint member are provided with a plurality of guide grooves circumferentially inclining with respect to their rotational axes. Each of the guide grooves is divided into a groove center portion having a symmetric shape with respect to the center line of the groove, and a pair of groove end portions having an asymmetric shape with respect to the center line of the groove. The pair of groove end portions of each guide groove have a depth larger than that of the groove center portion thereof so that a grinding wheel is prevented from contacting with the groove end portions during grinding operations on the guide grooves, thereby achieving the grinding operations accurately.
    Type: Grant
    Filed: June 26, 1991
    Date of Patent: February 16, 1993
    Assignee: Toyoda Koki Kabushiki Kaisha
    Inventors: Yasuaki Hayashi, Tadashi Tomita, Kenzo Yokoyama, Setsuji Suzuki, Yoshihito Uno