Patents by Inventor Takeshi Yabuta

Takeshi Yabuta 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).

  • Publication number: 20230350103
    Abstract: A glass body according to the present invention includes a glass plate having a first surface and a second surface on a side opposite to the first surface, a translucent reflective film arranged on the first surface of the glass plate, and an antifog means arranged on one of the translucent reflective film and the second surface of the glass plate.
    Type: Application
    Filed: October 9, 2020
    Publication date: November 2, 2023
    Applicant: Nippon Sheet Glass Company, Limited
    Inventors: Keiko TSURI, Kazuaki OYA, Takeshi YABUTA
  • Publication number: 20230149913
    Abstract: A greenhouse according to the present invention includes: a ceiling portion; and in at least a portion of the ceiling portion, a glass sheet with a coating film. The glass sheet with a coating film has a total light transmittance of 90% to 98%, a haze ratio of 20% to 80%, and a hemispherical transmittance of 80% to 90%. When a test is performed according to JIS R 1703-1: 2007 by applying oleic acid to a surface of a coating film and subsequently irradiating the surface with ultraviolet light at an intensity of 1.0 mW/cm2, a time period from start of irradiation with the ultraviolet light to a point at which a water contact angle on the surface reaches 5° is 24 hours or less.
    Type: Application
    Filed: March 9, 2021
    Publication date: May 18, 2023
    Inventors: Takeshi YABUTA, Masafumi TAGUCHI
  • Publication number: 20220242783
    Abstract: The present invention provides a glass sheet with a low-emissivity multilayer film having improved properties required for glass products. A glass sheet (10) with a low-emissivity multilayer film according to the present invention includes a glass sheet (1) and a low-emissivity multilayer film (2) supported by the glass sheet (1). The low-emissivity multilayer film (2) has a ZrO2-containing layer (3) disposed on an outermost side of the low-emissivity multilayer film (2) and a transparent conductive layer (4) disposed between the glass sheet (1) and the ZrO2-containing layer (3). A content of ZrO2 in the ZrO2-containing layer (3) is 8 mol % or more and 100 mol % or less. A content of SiO2 in the ZrO2-containing layer (3) is 0 mol % or more and 92 mol % or less. An arithmetic average roughness Ra of a surface (3a) of the ZrO2-containing layer (3) is 12 nm or less, and is smaller than an arithmetic average roughness Ra of a surface (4a) of the transparent conductive layer (4).
    Type: Application
    Filed: September 14, 2020
    Publication date: August 4, 2022
    Inventors: Toru YAMAMOTO, Masafumi TAGUCHI, Takeshi YABUTA
  • Publication number: 20210379870
    Abstract: An object of the present invention is to provide a cover glass that can improve the visibility of a display unit in an automobile and a method for producing a glass sheet for the cover glass. The present invention provides a cover glass that is to be installed so as to cover a display unit in an automobile, and the cover glass includes a glass body that includes a first surface facing the display unit side and a second surface opposite to the first surface, projections and depressions having a depth of 20 to 500 nm being formed on at least one of the first surface and the second surface, and a transmittance gain of the cover glass is 1% or more.
    Type: Application
    Filed: July 23, 2019
    Publication date: December 9, 2021
    Applicant: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Satoshi TANAKA, Takeshi YABUTA, Toru HIGUCHI, Kiyomi FUKUSHIMA
  • Publication number: 20210371328
    Abstract: The present invention provides a cover glass that can be installed in an automobile so as to cover a display unit including a plurality of information areas, including a glass body that has a first surface facing the display unit side, and a second surface opposite to the first surface, and that includes a plurality of transmission areas respectively corresponding to the information areas.
    Type: Application
    Filed: June 26, 2019
    Publication date: December 2, 2021
    Applicant: Nippon Sheet Glass Company, Limited
    Inventors: Toru HIGUCHI, Takeshi YABUTA, Satoshi TANAKA
  • Publication number: 20210255364
    Abstract: An antiglare film-attached substrate (la) includes a substrate (10) and an antiglare film (20). The substrate (10) includes a first principal surface (11), and a portion of the first principal surface (11) is exposed. The antiglare film (20) covers another portion of the first principal surface (11). The antiglare film-attached substrate (la) includes a second principal surface (25) having unevenness and formed of the first principal surface (11) and the surface of the antiglare film (20). When the second principal surface (25) is viewed in plan, the area of the antiglare film (20) accounts for 10 to 90% of the area of the second principal surface (25).
    Type: Application
    Filed: June 12, 2019
    Publication date: August 19, 2021
    Inventor: Takeshi YABUTA
  • Patent number: 10908320
    Abstract: The coated glass sheet of the present invention includes: a glass sheet; and a coating film provided on at least one principal surface of the glass sheet. The coating film includes a dense layer and a porous layer. The dense layer is positioned between the porous layer and the glass sheet.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: February 2, 2021
    Assignee: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Takeshi Yabuta, Toru Yamamoto, Fumiyoshi Kondo, Yoko Miyamoto
  • Publication number: 20200399170
    Abstract: The coated glass sheet of the present invention includes: a glass sheet; and a coating film provided on at least one principal surface of the glass sheet and having a smooth surface. The coating film includes: isolated closed pores present within the coating film; and a matrix. The coating film is substantially free of open pores open at the surface of the coating film. For the coated glass sheet of the present invention, a transmittance gain is 2.5% or more, the transmittance gain being calculated by subtracting an average transmittance of the glass sheet as determined by applying light having wavelengths of 380 to 1100 nm to the glass sheet in the absence of the coating film on the surface of the glass sheet from an average transmittance of the coated glass sheet as determined by applying light having the wavelengths to the coated glass sheet from a side on which the coating film lies.
    Type: Application
    Filed: September 3, 2020
    Publication date: December 24, 2020
    Inventors: Fumiyoshi KONDO, Takeshi YABUTA, Toru YAMAMOTO
  • Patent number: 10800700
    Abstract: The coated glass sheet of the present invention includes: a glass sheet; and a coating film provided on at least one principal surface of the glass sheet and having a smooth surface. The coating film includes: isolated closed pores present within the coating film; and a matrix. The coating film is substantially free of open pores open at the surface of the coating film. For the coated glass sheet of the present invention, a transmittance gain is 2.5% or more, the transmittance gain being calculated by subtracting an average transmittance of the glass sheet as determined by applying light having wavelengths of 380 to 1100 nm to the glass sheet in the absence of the coating film on the surface of the glass sheet from an average transmittance of the coated glass sheet as determined by applying light having the wavelengths to the coated glass sheet from a side on which the coating film lies.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: October 13, 2020
    Assignee: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Fumiyoshi Kondo, Takeshi Yabuta, Toru Yamamoto
  • Patent number: 10478803
    Abstract: The present invention provides a glass article including a photocatalyst film 1 containing silicon oxide particles 6 and titanium oxide particles 5, and a glass sheet 2. Assuming that the photocatalyst film 1 has a film thickness T, 80% or more of the titanium oxide particles are localized in a region between a surface of the glass sheet 2 and a position spaced from the surface by 0.6 T toward a surface of the photocatalyst film 1 in a thickness direction of the photocatalyst film 1. The glass article has an increased transmittance provided by enhancing the reflection-reducing function of the photocatalyst film 1 while maintaining the film strength and photocatalytic function of the photocatalyst film 1.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: November 19, 2019
    Assignee: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Takeshi Yabuta, Fumiyoshi Kondo, Mitsuhiro Kawazu
  • Publication number: 20180292577
    Abstract: The coated glass sheet of the present invention includes: a glass sheet; and a coating film provided on at least one principal surface of the glass sheet. The coating film includes a dense layer and a porous layer. The dense layer is positioned between the porous layer and the glass sheet.
    Type: Application
    Filed: September 7, 2016
    Publication date: October 11, 2018
    Inventors: Takeshi YABUTA, Toru YAMAMOTO, Fumiyoshi KONDO, Yoko MIYAMOTO
  • Publication number: 20180050956
    Abstract: The coated glass sheet of the present invention includes: a glass sheet; and a coating film provided on at least one principal surface of the glass sheet and having a smooth surface. The coating film includes: isolated closed pores present within the coating film; and a matrix. The coating film is substantially free of open pores open at the surface of the coating film. For the coated glass sheet of the present invention, a transmittance gain is 2.5% or more, the transmittance gain being calculated by subtracting an average transmittance of the glass sheet as determined by applying light having wavelengths of 380 to 1100 nm to the glass sheet in the absence of the coating film on the surface of the glass sheet from an average transmittance of the coated glass sheet as determined by applying light having the wavelengths to the coated glass sheet from a side on which the coating film lies.
    Type: Application
    Filed: March 1, 2016
    Publication date: February 22, 2018
    Inventors: Fumiyoshi KONDO, Takeshi YABUTA, Toru YAMAMOTO
  • Patent number: 9874658
    Abstract: In a low reflection coating glass sheet, a low reflection coating is a porous film including solid fine particles containing silicon oxide as a main component and a binder containing silicon oxide. The fine particles are solid particles. At least 70% of the fine particles aggregate to form secondary particles each having an aspect ratio of 1.8 to 5, a minor axis of 20 to 60 nm, and a major axis of 50 to 150 nm, when the aspect ratio is defined as the ratio of the major axis to the minor axis of the secondary particle. The low reflection coating has a thickness of 50 to 250 nm. This low reflection coating has a structure suitable for increasing the transmittance gain.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: January 23, 2018
    Assignee: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Takeshi Yabuta, Mizuho Koyo
  • Patent number: 9664822
    Abstract: A cover glass of the present invention for photoelectric conversion devices includes a glass sheet having surface asperities and a reflection-reducing film formed over the surface asperities of the glass sheet. The surface asperities of the glass sheet have an average spacing Sm of 0.3 mm or more and 2.5 mm or less and an arithmetic average roughness Ra of 0.3 ?m to 5 ?m. The reflection-reducing film includes fine silica particles having an average particle diameter of 50 to 200 nm and a binder for the fine silica particles, and the fine silica particles are uniformly arranged in a single layer on peak portions of the surface asperities in such a manner that a filling fraction F is 35 to 65%. A transmittance gain is 2.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: May 30, 2017
    Assignee: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Fumiyoshi Kondo, Takeshi Yabuta, Mitsuhiro Kawazu
  • Publication number: 20170021335
    Abstract: The present invention provides a glass article including a photocatalyst film 1 containing silicon oxide particles 6 and titanium oxide particles 5, and a glass sheet 2. Assuming that the photocatalyst film 1 has a film thickness T, 80% or more of the titanium oxide particles are localized in a region between a surface of the glass sheet 2 and a position spaced from the surface by 0.6 T toward a surface of the photocatalyst film 1 in a thickness direction of the photocatalyst film 1. The glass article has an increased transmittance provided by enhancing the reflection-reducing function of the photocatalyst film 1 while maintaining the film strength and photocatalytic function of the photocatalyst film 1.
    Type: Application
    Filed: October 10, 2016
    Publication date: January 26, 2017
    Inventors: Takeshi YABUTA, Fumiyoshi KONDO, Mitsuhiro KAWAZU
  • Patent number: 9486779
    Abstract: The present invention provides a glass article including a photocatalyst film 1 containing silicon oxide particles 6 and titanium oxide particles 5, and a glass sheet 2. Assuming that the photocatalyst film 1 has a film thickness T, 80% or more of the titanium oxide particles are localized in a region between a surface of the glass sheet 2 and a position spaced from the surface by 0.6 T toward a surface of the photocatalyst film 1 in a thickness direction of the photocatalyst film 1. The glass article has an increased transmittance provided by enhancing the reflection-reducing function of the photocatalyst film 1 while maintaining the film strength and photocatalytic function of the photocatalyst film 1.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: November 8, 2016
    Assignee: NIPPON SHEET GLASS COMPANY, LIMITED
    Inventors: Takeshi Yabuta, Fumiyoshi Kondo, Mitsuhiro Kawazu
  • Publication number: 20150355381
    Abstract: In a low reflection coating glass sheet, a low reflection coating is a porous film including solid fine particles containing silicon oxide as a main component and a binder containing silicon oxide. The fine particles are solid particles. At least 70% of the fine particles aggregate to form secondary particles each having an aspect ratio of 1.8 to 5, a minor axis of 20 to 60 nm, and a major axis of 50 to 150 nm, when the aspect ratio is defined as the ratio of the major axis to the minor axis of the secondary particle. The low reflection coating has a thickness of 50 to 250 nm. This low reflection coating has a structure suitable for increasing the transmittance gain.
    Type: Application
    Filed: January 24, 2014
    Publication date: December 10, 2015
    Inventors: Takeshi YABUTA, Mizuho KOYO
  • Publication number: 20150177425
    Abstract: A cover glass of the present invention for photoelectric conversion devices includes a glass sheet having surface asperities and a reflection-reducing film formed over the surface asperities of the glass sheet. The surface asperities of the glass sheet have an average spacing Sm of 0.3 mm or more and 2.5 mm or less and an arithmetic average roughness Ra of 0.3 ?m to 5 ?m. The reflection-reducing film includes fine silica particles having an average particle diameter of 50 to 200 nm and a binder for the fine silica particles, and the fine silica particles are uniformly arranged in a single layer on peak portions of the surface asperities in such a manner that a filling fraction F is 35 to 65%. A transmittance gain is 2.
    Type: Application
    Filed: July 9, 2013
    Publication date: June 25, 2015
    Inventors: Fumiyoshi Kondo, Takeshi Yabuta, Mitsuhiro Kawazu
  • Publication number: 20150004398
    Abstract: The present invention provides a glass article including a photocatalyst film 1 containing silicon oxide particles 6 and titanium oxide particles 5, the glass article having an increased transmittance provided by enhancing the reflection-reducing function of the photocatalyst film 1 while maintaining the film strength and photocatalytic function of the photocatalyst film 1. In the photocatalyst film 1, the silicon oxide particles 6 are contained in an amount of 72 to 79 mass %, the titanium oxide particles 5 are contained in an amount of 13 to 18 mass %, and a binder material whose main component is silicon oxide is contained in an amount of 8 to 14 mass %, with respect to the total amount of the silicon oxide particles, the titanium oxide particles, and the binder material.
    Type: Application
    Filed: February 1, 2013
    Publication date: January 1, 2015
    Inventors: Takeshi Yabuta, Fumiyoshi Kondo, Mitsuhiro Kawazu
  • Patent number: 8541106
    Abstract: Provided is a glass article that improves the film strength of a photocatalyst film while maintaining the photocatalytic function and the reflection suppressing function of the photocatalyst film. The photocatalyst film on the glass sheet is formed to contain, in mass %, 50 to 82% of silicon oxide particles, 8 to 40% of titanium oxide particles, and 7 to 20% of a binder component composed of silicon oxide. The average particle diameter of the silicon oxide particles is set to at least 5 times the average particle diameter of the titanium oxide particles. The photocatalyst film is formed to have a structure such that some of the silicon oxide particles in the film serve as protruding silicon oxide particles that are not in contact with the glass sheet and that have their top portions protruding from the surrounding titanium oxide particles and being exposed on the surface of the film, while some of the titanium oxide particles are interposed between the glass sheet and the protruding silicon oxide particles.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: September 24, 2013
    Assignee: Nippon Sheet Glass Company, Limited
    Inventors: Takeshi Yabuta, Fumiyoshi Kondo, Masaatsu Kido, Masahiro Hori, Mitsuhiro Kawazu, Kazutaka Kamitani