Patents by Inventor Toyohide Sonoda

Toyohide Sonoda 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).

  • Lenticular lens sheet, rear projection type screen, and rear projection type projector, and lenticular lens sheet producing method
    Publication number: 20060126186
    Abstract: The rear projection screen of the present invention has a lenticular lens sheet 1. In the input surface of the lenticular lens sheet 1, a first lens array 12 is formed on a first lens layer 14. In the boundary between the first lens layer 14 and a second lens layer 15, a second lens array 13 substantially orthogonal to the first lens array 12 is formed. The second lens layer 15 has a different refractive index from the first lens layer 14. A lattice-shaped or stripe-shaped self-aligned ambient light absorbing layer 17 is formed in a light non-passing position on the second lens layer 15.
    Type: Application
    Filed: January 22, 2004
    Publication date: June 15, 2006
    Applicant: Kuraray Co., Ltd.
    Inventors: Tsuyoshi Kanda, Toyohide Sonoda, Youji Ono