Patents by Inventor Yoshisuke Oyama

Yoshisuke Oyama 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).

  • Multiple lip wiper blade
    Patent number: 5398371
    Abstract: A wiper blade of the present invention comprises two or three blades for wiping. The blades are longitudinally parallel and have their bases integrated into each other. The bases have deflective portions on the longitudinal outer sides of the integral body of the bases, so that the deflective portions serve to deflect one of the two outmost blades backward when one blade is ahead of the other and the wiper blade is performing a wiping action. The wiper blade of the present invention has a smaller edge height than a conventional wiper blade of a single blade, so that the former wiper blade may be easier to deform in conformity with a surface to be wiped, enabling a more stable wiping action and having a lower air resistance.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: March 21, 1995
    Assignee: Y. Corporation
    Inventor: Yoshisuke Oyama
  • Wiper blade
    Patent number: D349877
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: August 23, 1994
    Assignee: Y. Corporation
    Inventor: Yoshisuke Oyama
  • Wiper blade
    Patent number: D353354
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: December 13, 1994
    Assignee: Y. Corporation
    Inventor: Yoshisuke Oyama