Patents by Inventor Yoshiyuki Ohtaka

Yoshiyuki Ohtaka 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).

  • Silent chain having a sheared link bearing surface
    Patent number: 5803854
    Abstract: A silent chain having multiple links each having a pair of teeth and apertures, which are connected by connecting pins inserted into the apertures. The links have an sheared link bearing surface which further reduces the wear of the sprocket tooth surface and further prevents defective bending of the silent chain. The bearing surface of the link tooth has a shear surface which may be formed by shaving or fine-blanking. The shear surface length may be at least approximately 70% or at least approximately 90% of the link thickness.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: September 8, 1998
    Assignees: Borg-Warner Automotive, K.K., Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Naosumi Tada, Kensuke Nakamura, Kazushige Yakubo, Yoshiyuki Ohtaka