Patents by Inventor Yaso Himuro

Yaso Himuro 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).

  • Patent number: 6123130
    Abstract: A tire tread has a total of four circumferential ribs and three circumferential grooves. The four ribs include two intermediate ribs and two outer ribs, and the three grooves include a center groove and two outer grooves. The two intermediate ribs are between the center groove and the two outer grooves, and the outer ribs are on the opposite sides of the outer grooves from the intermediate ribs. Rib cross slots and cross sipes extend outwardly from the outer grooves into the intermediate and outer ribs in herringbone patterns. The cross slots and cross sipes extend less than the full width of the ribs to provide the intermediate ribs with circumferential inner portions adjacent the center groove that are devoid of cross slots. These circumferential inner portions of the intermediate ribs have a plurality of circumferentially-spaced cross sipes that do not intersect the center groove.
    Type: Grant
    Filed: November 11, 1997
    Date of Patent: September 26, 2000
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Yaso Himuro, Bill J. Wallet, David M. Reep, Shawn L. Copeland, Yukio Yamakawa, Michael J. Ferraco