Patents by Inventor Takuya Sairai

Takuya Sairai 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).

  • Transflective film, transflective polarizer, and polarizing light source device and liquid crystal display device using the same
    Patent number: 7820252
    Abstract: The present invention provides a transflective film comprising a polymer film having an in-plane phase retardation value of about 30 nm or less and a transflective layer made of an inorganic compound, wherein the transflective layer is coated on the polymer film and a reflectance of the transflective film is from about 10% to about 95%. When an absorption-type polarizer is laminated to the polymer film side of the transflective film, a transflective polarizer is provided. When a reflection-type polarizer is laminated to the transflective layer side of the transflective film, a transflective polarizer used in a system improving luminance is provided. Using these transflective polarizers, a polarizing light source device and a transflective liquid crystal display device are provided.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: October 26, 2010
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Koji Higashi, Masaru Honda, Takuya Sairai
  • Transflective film, transflective polarizer, and polarizing light source device and liquid crystal display device using the same
    Publication number: 20030082314
    Abstract: The present invention provides a transflective film comprising a polymer film having an in-plane phase retardation value of about 30 nm or less and a transflective layer made of an inorganic compound, wherein the transflective layer is coated on the polymer film and a reflectance of the transflective film is from about 10% to about 95%. When an absorption-type polarizer 23 is laminated to the polymer film 22 side of the transflective film, a transflective polarizer 11 is provided. When a reflection-type polarizer 24 is laminated to the transflective layer 21 side of the transflective film, a transflective polarizer used in a system improving luminance is provided. Using these transflective polarizers, a polarizing light source device and a transflective liquid crystal display device are provided.
    Type: Application
    Filed: June 28, 2002
    Publication date: May 1, 2003
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji Higashi, Masaru Honda, Takuya Sairai