Patents by Inventor Katsumasa HOSOI

Katsumasa HOSOI 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).

  • Near-infrared cut filter and solid-state imaging device
    Patent number: 10310150
    Abstract: There are provided a near-infrared cut filter having a sufficient near-infrared blocking property and being capable of reducing or preventing, in a solid-state imaging device using the near-infrared cut filter, occurrence of a phenomenon that an object which did not exist on the original subject appears in a taken image, and also a highly sensitive solid-state imaging device having the near-infrared cut filter. A near-infrared cut filter includes a stack having a near-infrared absorbing glass substrate and a near-infrared absorbing layer containing a near-infrared absorbing dye and a transparent resin on at least one main surface of the near-infrared absorbing glass substrate, and a dielectric multilayer film formed on at least one main surface of the stack, wherein maximum transmittance at an incident angle of 31 to 60 degrees with respect to light with a wavelength of from 775 to 900 nm is 50% or less.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: June 4, 2019
    Assignee: AGC Inc.
    Inventors: Takashi Sugiyama, Katsumasa Hosoi, Atsushi Komori, Yoshiharu Ooi, Makoto Hasegawa
  • NEAR-INFRARED CUT FILTER AND SOLID-STATE IMAGING DEVICE
    Publication number: 20170017023
    Abstract: There are provided a near-infrared cut filter having a sufficient near-infrared blocking property and being capable of reducing or preventing, in a solid-state imaging device using the near-infrared cut filter, occurrence of a phenomenon that an object which did not exist on the original subject appears in a taken image, and also a highly sensitive solid-state imaging device having the near-infrared cut filter. A near-infrared cut filter includes a stack having a near-infrared absorbing glass substrate and a near-infrared absorbing layer containing a near-infrared absorbing dye and a transparent resin on at least one main surface of the near-infrared absorbing glass substrate, and a dielectric multilayer film formed on at least one main surface of the stack, wherein maximum transmittance at an incident angle of 31 to 60 degrees with respect to light with a wavelength of from 775 to 900 nm is 50% or less.
    Type: Application
    Filed: September 29, 2016
    Publication date: January 19, 2017
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Takashi SUGIYAMA, Katsumasa HOSOI, Atsushi KOMORI, Yoshiharu OOI, Makoto HASEGAWA