Patents by Inventor Michito Takahashi

Michito Takahashi 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 element and method for producing the same
    Patent number: 8652614
    Abstract: The present invention relates to an optical element comprising: a optical glass made of a phosphate glass or a fluorophosphate glass; and an optically functional film formed on a surface of the optical glass, wherein the optically functional film comprises two or more layers made of different materials, and the outermost surface layer thereof is made of a material(s) having low reactivity with phosphoric acid.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: February 18, 2014
    Assignee: Asahi Glass Company, Limited
    Inventors: Michito Takahashi, Sunao Miyazaki
  • OPTICAL ELEMENT AND METHOD FOR PRODUCING THE SAME
    Publication number: 20100330378
    Abstract: The present invention relates to an optical element comprising: a optical glass made of a phosphate glass or a fluorophosphate glass; and an optically functional film formed on a surface of the optical glass, wherein the optically functional film comprises two or more layers made of different materials, and the outermost surface layer thereof is made of a material(s) having low reactivity with phosphoric acid.
    Type: Application
    Filed: June 21, 2010
    Publication date: December 30, 2010
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Michito Takahashi, Sunao Miyazaki