Patents by Inventor Yoshiaki Kumasaka

Yoshiaki Kumasaka 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).

  • Multidirectional input device
    Patent number: 6965084
    Abstract: A driving body is placed on four sets of push switches which are arranged on a concentric circle at equal intervals of 90 degrees. The driving body is pivotally supported by a holder to be rockable, and a driving rod protruding from the driving body is inserted through a square opening formed in the slider, and respective sides of the opening are set parallel to straight lines connecting two sets of adjacent push switches with each other.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: November 15, 2005
    Assignee: Alps Electric Co., Ltd.
    Inventors: Yoshiaki Kumasaka, Takuya Maeda
  • Multidirectional input device
    Publication number: 20050183937
    Abstract: A driving body is placed on four sets of push switches which are arranged on a concentric circle at equal intervals of 90 degrees. The driving body is pivotally supported by a holder to be rockable, and a driving rod protruding from the driving body is inserted through a square opening formed in the slider, and respective sides of the opening are set parallel to straight lines connecting two sets of adjacent push switches with each other.
    Type: Application
    Filed: February 7, 2005
    Publication date: August 25, 2005
    Inventors: Yoshiaki Kumasaka, Takuya Maeda