Patents by Inventor Tsutomu KINASHI

Tsutomu KINASHI 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).

  • Patent number: 9759847
    Abstract: Provided is an optical filter integrally provided with a light blocking film capable of suppressing stray light. An optical filter may be used for an imaging apparatus having a built-in image sensing device on which light from a subject or a light source is incident. The optical filter includes: an optical filter main body arranged between the subject or the light source and the image sensing device and having a transmission property for the incident light; and a frame-shaped light blocking film integrally formed on at least one surface of the optical filter main body. The light blocking film satisfies the following condition (1) and/or condition (2). (1) A concavity/convexity is formed on at least a part of an inner peripheral surface of the light blocking film. (2) A thin part is formed on at least a part of an inner edge of the light blocking film.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: September 12, 2017
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Atsushi Matsuo, Satoshi Umeda, Tsutomu Kinashi
  • Publication number: 20150077841
    Abstract: Provided is an optical filter integrally provided with a light blocking film capable of suppressing stray light. An optical filter may be used for an imaging apparatus having a built-in image sensing device on which light from a subject or a light source is incident. The optical filter includes: an optical filter main body arranged between the subject or the light source and the image sensing device and having a transmission property for the incident light; and a frame-shaped light blocking film integrally formed on at least one surface of the optical filter main body. The light blocking film satisfies the following condition (1) and/or condition (2). (1) A concavity/convexity is formed on at least a part of an inner peripheral surface of the light blocking film. (2) A thin part is formed on at least a part of an inner edge of the light blocking film.
    Type: Application
    Filed: November 20, 2014
    Publication date: March 19, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Atsushi MATSUO, Satoshi UMEDA, Tsutomu KINASHI