Patents by Inventor Hiroaki Soyama

Hiroaki Soyama 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).

  • Rotational position sensor having axially central sensor unit
    Patent number: 8400144
    Abstract: A rotational position sensor includes a rotating body rotatably supported around a predetermined axis line by a bearing portion of a housing and a sensor unit having a movable sensor element arranged at the rotating body to detect a rotational angle position of the rotating body and a fixed sensor element arranged at the housing. The rotating body includes a tapered annular contact face defining a part of a virtual cone face with a vertex on the axis line and the bearing portion includes a tapered annular bearing face rotatably supporting the annular contact face on the virtual cone face. Accordingly, the rotating body is consistently located on the axis line due to an automatic alignment effect. Therefore, the rotational angle position of the rotating body can be detected with high accuracy even with occurrence of aging variation such as wearing at a bearing area.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: March 19, 2013
    Assignee: Mikuni Corporation
    Inventors: Hiroaki Soyama, Yoshinobu Komoto
  • Rotational position sensor
    Publication number: 20110018529
    Abstract: A rotational position sensor includes a rotating body rotatably supported around a predetermined axis line by a bearing portion of a housing and a sensor unit having a movable sensor element arranged at the rotating body to detect a rotational angle position of the rotating body and a fixed sensor element arranged at the housing. The rotating body includes a tapered annular contact face defining a part of a virtual cone face with a vertex on the axis line and the bearing portion includes a tapered annular bearing face rotatably supporting the annular contact face on the virtual cone face. Accordingly, the rotating body is consistently located on the axis line due to an automatic alignment effect. Therefore, the rotational angle position of the rotating body can be detected with high accuracy even with occurrence of aging variation such as wearing at a bearing area.
    Type: Application
    Filed: September 29, 2010
    Publication date: January 27, 2011
    Applicant: MIKUNI CORPORATION
    Inventors: Hiroaki Soyama, Yoshinobu Komoto