Patents by Inventor Humihiro Arakawa

Humihiro Arakawa 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).

  • Display apparatus
    Patent number: 6865834
    Abstract: A display apparatus has a lens sheet with a plurality of unit columnar lenses arranged so as to be parallel to one another, and is disposed on the observation side of a display panel, spaced therefrom by a layer of air. The direction of the ridge lines of the unit columnar lenses of the lens sheet, seen from the observation side, are non-parallel to the direction of an edge of the display panel.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: March 15, 2005
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Kumpei Oda, Humihiro Arakawa, Keiji Kashima
  • Display apparatus
    Publication number: 20030046839
    Abstract: A display apparatus has a lens sheet with a plurality of unit columnar lenses arranged so as to be parallel to one another, and is disposed on the observation side of a display panel, spaced therefrom by a layer of air. The direction of the ridge lines of the unit columnar lenses of the lens sheet, seen from the observation side, are non-parallel to the direction of an edge of the display panel.
    Type: Application
    Filed: October 24, 2002
    Publication date: March 13, 2003
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Kumpei Oda, Humihiro Arakawa, Keiji Kashima