Patents by Inventor Tadanari NAOE

Tadanari NAOE 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).

  • Optical filter and method for manufacturing optical filter
    Patent number: 10241245
    Abstract: There are provided an optical filter excellent in weather resistance and a method for manufacturing an optical filter. The optical filter of the present invention includes a transparent substrate, and an optical multilayer film provided on a surface of the transparent substrate. In the optical multilayer film, a low-refractive index film containing silicon oxide (SiO2) and a high-refractive index film higher in refractive index than the low-refractive index film are alternately stacked. A density of a portion of the low-refractive index film close to an interface between the low-refractive index film and the high-refractive index film is lower than a density of a portion of the low-refractive index film other than the portion close to the interface.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: March 26, 2019
    Assignee: AGC Inc.
    Inventors: Mitsuyuki Tatemura, Akinori Sakurai, Tadanari Naoe
  • OPTICAL FILTER AND METHOD FOR MANUFACTURING OPTICAL FILTER
    Publication number: 20160077257
    Abstract: There are provided an optical filter excellent in weather resistance and a method for manufacturing an optical filter. The optical filter of the present invention includes a transparent substrate, and an optical multilayer film provided on a surface of the transparent substrate. In the optical multilayer film, a low-refractive index film containing silicon oxide (SiO2) and a high-refractive index film higher in refractive index than the low-refractive index film are alternately stacked. A density of a portion of the low-refractive index film close to an interface between the low-refractive index film and the high-refractive index film is lower than a density of a portion of the low-refractive index film other than the portion close to the interface.
    Type: Application
    Filed: November 25, 2015
    Publication date: March 17, 2016
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Mitsuyuki TATEMURA, Akinori SAKURAI, Tadanari NAOE