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).
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Publication number: 20230350103Abstract: 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: ApplicationFiled: October 9, 2020Publication date: November 2, 2023Applicant: Nippon Sheet Glass Company, LimitedInventors: Keiko TSURI, Kazuaki OYA, Takeshi YABUTA
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Publication number: 20230149913Abstract: 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: ApplicationFiled: March 9, 2021Publication date: May 18, 2023Inventors: Takeshi YABUTA, Masafumi TAGUCHI
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Publication number: 20220242783Abstract: 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: ApplicationFiled: September 14, 2020Publication date: August 4, 2022Inventors: Toru YAMAMOTO, Masafumi TAGUCHI, Takeshi YABUTA
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Publication number: 20210379870Abstract: 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: ApplicationFiled: July 23, 2019Publication date: December 9, 2021Applicant: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Satoshi TANAKA, Takeshi YABUTA, Toru HIGUCHI, Kiyomi FUKUSHIMA
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Publication number: 20210371328Abstract: 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: ApplicationFiled: June 26, 2019Publication date: December 2, 2021Applicant: Nippon Sheet Glass Company, LimitedInventors: Toru HIGUCHI, Takeshi YABUTA, Satoshi TANAKA
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Publication number: 20210255364Abstract: 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: ApplicationFiled: June 12, 2019Publication date: August 19, 2021Inventor: Takeshi YABUTA
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Patent number: 10908320Abstract: 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: GrantFiled: September 7, 2016Date of Patent: February 2, 2021Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Takeshi Yabuta, Toru Yamamoto, Fumiyoshi Kondo, Yoko Miyamoto
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Publication number: 20200399170Abstract: 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: ApplicationFiled: September 3, 2020Publication date: December 24, 2020Inventors: Fumiyoshi KONDO, Takeshi YABUTA, Toru YAMAMOTO
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Patent number: 10800700Abstract: 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: GrantFiled: March 1, 2016Date of Patent: October 13, 2020Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Fumiyoshi Kondo, Takeshi Yabuta, Toru Yamamoto
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Patent number: 10478803Abstract: 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: GrantFiled: October 10, 2016Date of Patent: November 19, 2019Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Takeshi Yabuta, Fumiyoshi Kondo, Mitsuhiro Kawazu
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Publication number: 20180292577Abstract: 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: ApplicationFiled: September 7, 2016Publication date: October 11, 2018Inventors: Takeshi YABUTA, Toru YAMAMOTO, Fumiyoshi KONDO, Yoko MIYAMOTO
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Publication number: 20180050956Abstract: 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: ApplicationFiled: March 1, 2016Publication date: February 22, 2018Inventors: Fumiyoshi KONDO, Takeshi YABUTA, Toru YAMAMOTO
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Patent number: 9874658Abstract: 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: GrantFiled: January 24, 2014Date of Patent: January 23, 2018Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Takeshi Yabuta, Mizuho Koyo
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Patent number: 9664822Abstract: 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: GrantFiled: July 9, 2013Date of Patent: May 30, 2017Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Fumiyoshi Kondo, Takeshi Yabuta, Mitsuhiro Kawazu
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Publication number: 20170021335Abstract: 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: ApplicationFiled: October 10, 2016Publication date: January 26, 2017Inventors: Takeshi YABUTA, Fumiyoshi KONDO, Mitsuhiro KAWAZU
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Patent number: 9486779Abstract: 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: GrantFiled: February 1, 2013Date of Patent: November 8, 2016Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Takeshi Yabuta, Fumiyoshi Kondo, Mitsuhiro Kawazu
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Publication number: 20150355381Abstract: 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: ApplicationFiled: January 24, 2014Publication date: December 10, 2015Inventors: Takeshi YABUTA, Mizuho KOYO
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Publication number: 20150177425Abstract: 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: ApplicationFiled: July 9, 2013Publication date: June 25, 2015Inventors: Fumiyoshi Kondo, Takeshi Yabuta, Mitsuhiro Kawazu
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Publication number: 20150004398Abstract: 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: ApplicationFiled: February 1, 2013Publication date: January 1, 2015Inventors: Takeshi Yabuta, Fumiyoshi Kondo, Mitsuhiro Kawazu
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Patent number: 8541106Abstract: 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: GrantFiled: August 17, 2010Date of Patent: September 24, 2013Assignee: Nippon Sheet Glass Company, LimitedInventors: Takeshi Yabuta, Fumiyoshi Kondo, Masaatsu Kido, Masahiro Hori, Mitsuhiro Kawazu, Kazutaka Kamitani