Patents by Inventor Naoki Miyauchi

Naoki Miyauchi 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).

  • Coordinate input pen, and electronic board, coordinate input system and electronic board system using the coordinate input pen
    Patent number: 6437314
    Abstract: The present invention relates to a coordinate input pen for specifying and outputting coordinates of the pen by detecting two infrared beams that are emitted from two separate positions for pivotally scanning over a plane parallel to a surface of a display panel. The coordinate input pen includes: a shaft portion; a transparent conical light scattering member with a rough surface, which is, placed at the end of the shaft portion; and a light receiving element for detecting an infrared beam scattered within the light scattering member.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: August 20, 2002
    Assignee: Hitachi Software Engineering Co., Ltd.
    Inventors: Yutaka Usuda, Ichirou Takeuchi, Sueo Amemiya, Jun Namiki, Naoki Miyauchi