Patents Assigned to AGC Inc.
  • Patent number: 11914283
    Abstract: A reflective mask blank includes a substrate and, on or above the substrate in order, a reflective layer for reflecting EUV light, a protective layer for protecting the reflective layer, and an absorbent layer for absorbing EUV light. The absorbent layer has a reflectance for a wavelength of 13.53 nm of from 2.5% to 10%. A film thickness d of the absorbent layer satisfies a relationship of: d M ? A ? X - ( i × 6 + 1 ) ? nm ? d ? d M ? A ? X - ( i × 6 - 1 ) ? nm where the integer i is 0 or 1, and dMAX is represented by: d MAX ( nm ) = 13.53 2 ? n ? cos ? 6 ? ° { INT ? ( 0.58 1 - n ) + 1 2 ? ? ? ( tan - 1 ( - k 1 - n ) + 0.64 ) } where n is a refractive index of the absorbent layer, k is an absorption coefficient of the absorbent layer, and INT(x) is a function of returning an integer value obtained by truncating a decimal part.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: February 27, 2024
    Assignee: AGC INC.
    Inventors: Hiroyoshi Tanabe, Hiroshi Hanekawa, Toshiyuki Uno
  • Patent number: 11912617
    Abstract: A silica glass for a radio-frequency device has an OH group concentration being less than or equal to 300 wtppm; an FQ value being higher than or equal to 90,000 GHz at a frequency of higher than or equal to 25 GHz and lower than or equal to 30 GHz; and a slope being greater than or equal to 1,000 in a case where the FQ value is approximated as a linear function of the frequency in a frequency band of higher than or equal to 20 GHz and lower than or equal to 100 GHz.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: February 27, 2024
    Assignee: AGC Inc.
    Inventors: Nobutaka Kidera, Kazuya Sasaki, Yasutomi Iwahashi
  • Patent number: 11914284
    Abstract: A reflective mask blank includes a substrate; a multilayer reflective film that reflects EUV light; a protection film that protects the multilayer reflective film; and a phase shift film that shifts a phase of the EUV light, the substrate, the multilayer reflective film, the protection film, and the phase shift film being arranged in this order. The phase shift film contains at least one first element X1 selected from the first group consisting of ruthenium (Ru), iridium (Ir), platinum (Pt), palladium (Pd), and gold (Au), and at least one second element X2 selected from the second group consisting of oxygen (O), boron (B), carbon (C), and nitrogen (N). In the phase shift film, a chemical shift of a peak of 3d5/2 or a peak of 4f7/2 of the first element X1 observed by X-ray electron spectroscopy is less than 0.3 eV.
    Type: Grant
    Filed: July 3, 2023
    Date of Patent: February 27, 2024
    Assignee: AGC Inc.
    Inventors: Daijiro Akagi, Shunya Taki, Takuma Kato, Ichiro Ishikawa, Kenichi Sasaki
  • Patent number: 11913175
    Abstract: To provide a polymer which can provide a water- and oil-proof paper with excellent water and oil resistance. A polymer comprising the following units a, and at least the following units b among the following units b and the following units c, wherein the ratio of units a to all the units in the polymer is from 28 to 70 mol %, the total ratio of units b and units c to all the units in the polymer is from 30 to 72 mol %, and the ratio of units b to the sum of units b and units c is at least 45 mol %: units a: units represented by —(CH2—CHRf)— (wherein Rf is a C1-8 perfluoroalkyl group), units b: units represented by —(CH2—CH(OH))—, units c: units represented by —(CH2—CH(OC(?O)R))— (wherein R is a C1-4 alkyl group).
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: February 27, 2024
    Assignee: AGC Inc.
    Inventors: Yuzuka Yoshioka, Motohiro Takemura, Hiroyuki Hara
  • Publication number: 20240061165
    Abstract: A light guide element includes a light guide substrate that is a single-layer light guide substrate; and a diffraction layer formed on the light guide substrate. The diffraction layer includes a first diffraction grating configured to in-couple light into the light guide substrate; and a second diffraction grating configured to outcouple totally internally reflected light having propagated in the light guide substrate out of the light guide substrate. The first diffraction grating in-couples the incident light in a range of 60 degrees or more including a direction normal to substrate, for at least one of first wavelength of 450 nm±20 nm, second wavelength of 530 nm±20 nm, and third wavelength of 630 nm±20 nm. The second diffraction grating outcouples the totally internally reflected light in a range of 60 degrees or more including the direction normal to substrate, for at least one of the first, second, and third wavelengths.
    Type: Application
    Filed: October 28, 2023
    Publication date: February 22, 2024
    Applicant: AGC Inc.
    Inventors: Motoshi NAKAYAMA, Mitsuo OSAWA
  • Publication number: 20240063536
    Abstract: A reflector system, an active reflector, and a method of positioning an active reflector are provided, whereby dead zones can be cancelled efficiently. The reflector system includes: a first active reflector having a first reflecting surface configured to reflect, at a variable reflecting angle, radio waves transmitted from a transmitter, at least a part of the first reflecting surface being in a boundary area located at a boundary between a line-of-sight area and a non-line-of-sight area formed by one or more obstacles that block the radio waves from the transmitter; and a second active reflector having a second reflecting surface configured to reflect, at a variable reflecting angle, the radio waves from the transmitter or the radio waves reflected by the first active reflector, the second reflecting surface being provided in the non-line-of-sight area, or at least a part of the second reflecting surface being provided in the boundary area.
    Type: Application
    Filed: November 3, 2023
    Publication date: February 22, 2024
    Applicant: AGC Inc.
    Inventors: Kouichirou TAKAHASHI, Osamu KAGAYA, Akira KUMAGAI, Shimpei NAGAE
  • Patent number: 11905455
    Abstract: To provide a working fluid for heat cycle having a low global warming potential, which can replace R410A, a composition for a heat cycle system comprising it, and a heat cycle system employing the composition. A working fluid for heat cycle, which comprises trifluoroethylene and 2,3,3,3-tetrafluoropropene, wherein the total proportion of trifluoroethylene and 2,3,3,3-tetrafluoropropene based on the entire amount of the working fluid is from 70 to 100 mass %, and the proportion of trifluoroethylene based on the total amount of trifluoroethylene and 2,3,3,3-tetrafluoropropene is from 35 to 95 mass %, a composition for a heat cycle system comprising the working fluid for heat cycle, and a heat cycle system employing the composition.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: February 20, 2024
    Assignee: AGC Inc.
    Inventor: Masato Fukushima
  • Publication number: 20240053540
    Abstract: A light guide plate includes a glass substrate having a mark on a surface thereof and a refractive index of 1.7 or more. The mark includes a plurality of dots. Each dot is contained in a minimum circle having a diameter of 30 to 250 ?m. Each dot has raised portions higher than the surface at outermost and innermost peripheral edge portions having a height of 0.11 to 4 ?m. Each dot is composed of laser irradiation marks, each having a diameter of 10 to 40 ?m, and being in contact with or overlapping with each other. A specific loop shape, formed by the laser irradiation marks, having a diameter of a minimum circle containing the loop shape of 100 ?m or less, is configured as an open loop including an open portion having a length of one tenth to twice of a maximum diameter of the laser irradiation mark.
    Type: Application
    Filed: October 23, 2023
    Publication date: February 15, 2024
    Applicant: AGC Inc.
    Inventors: Makoto MATSUI, Kunihisa TAKAHASHI
  • Publication number: 20240055653
    Abstract: The present invention relates to a sulfide solid electrolyte to be used in a lithium-ion secondary battery, including an argyrodite crystal structure including Li, P, S, and Ha, in which Ha is at least one selected from the group consisting of F, Cl, Br, and I, the sulfide solid electrolyte has a peak in at least one selected from the group consisting of 140 cm?1 to 170 cm?1, 205 cm?1 to 235 cm?1, and 460 cm?1 to 490 cm?1 in a Raman spectrum obtained by Raman spectroscopy measurement, and the sulfide solid electrolyte does not have an endothermic peak within a range of 70° C. to 160° C. in a DSC curve obtained by differential scanning calorimetry.
    Type: Application
    Filed: April 27, 2023
    Publication date: February 15, 2024
    Applicant: AGC INC.
    Inventors: Naoki FUJII, Manabu NISHIZAWA, Hideaki HAYASHI
  • Publication number: 20240053671
    Abstract: A method for producing a reflective mask blank, includes: forming a reflective multilayer film on or above a substrate by using an ion beam sputtering apparatus and a process gas, the ion beam sputtering apparatus accelerating an ion generated by applying a voltage to a grid, and causing the ion to collide with a target to perform sputtering, the process gas including at least one inert gas selected from He, Ne, Ar, Kr, Xe, Rn, and N2 as an ion source, in which a product of an effective area (cm2) of the grid and a flow rate (sccm) of the process gas supplied to the ion beam sputtering apparatus during film formation is 3600 (cm2·sccm) or less.
    Type: Application
    Filed: October 27, 2023
    Publication date: February 15, 2024
    Applicant: AGC Inc.
    Inventors: Ryusuke OISHI, Takahiro KIKUCHI
  • Patent number: 11899317
    Abstract: To provide a laminated glass in which color shading of an optical member is reduced, and a method for producing it. A laminated glass comprising a first glass plate, a second glass plate facing the first glass plate, and between the first glass plate and the second glass plate, a light control member to which a power feeder is connected, a bonding portion and a sealing member, wherein the sealing member overlaps with at least a part of the periphery of the first glass plate, in a plan view, the bonding portion is in contact with the first glass plate, the second glass plate, and a first principal surface, a second principal surface and side surfaces of the light control member, and the bonding portion contains a curable transparent resin.
    Type: Grant
    Filed: February 7, 2023
    Date of Patent: February 13, 2024
    Assignee: AGC INC.
    Inventors: Junichi Kakuta, Takashi Shibuya, Risa Kimura, Yuhei Gima
  • Patent number: 11898018
    Abstract: To provide a liquid composition capable of forming a membrane excellent in durability against hydrogen peroxide or peroxide radicals and excellent in hydrogen gas barrier property; a polymer electrolyte membrane; a membrane electrode assembly; and a polymer electrolyte fuel cell. Liquid composition comprising a liquid medium, an acid-type sulfonic acid group-containing fluorocarbon polymer of which the hydrogen gas permeation coefficient under the conditions of a temperature of 80° C. and a relative humidity of 10% is at most 2.5×10?9 cm3·cm/(s·cm2·cmHg), and cerium atoms; a polymer electrolyte membrane 15 comprising the acid-type sulfonic acid group-containing fluorocarbon polymer, and cerium atoms; and a membrane electrode assembly 10 comprising an anode 13 having a catalyst layer, a cathode 14 having a catalyst layer, and the polymer electrolyte membrane 15 disposed between the anode 13 and the cathode 14.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: February 13, 2024
    Assignee: AGC Inc.
    Inventors: Takumi Okuyama, Takeshi Hirai, Susumu Saito, Chikaya Tamitsuji, Daisuke Jomuta
  • Patent number: 11897812
    Abstract: An alkali free glass has an average coefficient of thermal expansion at 50 to 350° C. of 30×10?7 to 43×10?7/° C., a Young's modulus of 88 GPa or more, a strain point of 650 to 725° C., a temperature T4 at which a viscosity reaches 104 dPa·s of 1,290° C. or lower, a glass surface devitrification temperature (Tc) of T4+20° C. or lower, and a temperature T2 at which the viscosity reaches 102 dPa·s of 1,680° C. or lower. The alkali free glass contains, as represented by mol % based on oxides, 62 to 67% of SiO2, 12.5 to 16.5% of Al2O3, 0 to 3% of B2O3, 8 to 13% of MgO, 6 to 12% of CaO, 0.5 to 4% of SrO, and 0 to 0.5% of BaO. MgO+CaO+SrO+BaO is 18 to 22%, and MgO/CaO is 0.8 to 1.33.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: February 13, 2024
    Assignee: AGC Inc.
    Inventors: Hirofumi Tokunaga, Kazutaka Ono
  • Publication number: 20240042737
    Abstract: A method for producing laminated glass for automobile windows includes heating and bend forming two glass plates; and bonding together the two bend-formed glass plates via an interlayer film, wherein, the method further includes scratching that is performed on a concave surface of at least one of the two glass plates, after the bend-forming.
    Type: Application
    Filed: October 18, 2023
    Publication date: February 8, 2024
    Applicant: AGC Inc.
    Inventors: Yoshinobu MORITA, Yoshiaki OHBA
  • Publication number: 20240042739
    Abstract: A method for producing laminated glass for automobile windows includes: heating and bend forming two glass plates; and bonding together the two bend-formed glass plates via an interlayer film, wherein before the heating and bend forming of the two glass plates, at least one glass plate of the two glass plates that are flat, is conveyed by a conveying unit while either a conveying unit-facing surface of the at least one glass plate or a non-facing surface of the at least one glass plate that is opposite to the conveying unit-facing surface is scratched by the conveying unit, and in the bonding together of the two bend-formed glass plates via the interlayer film, the scratched surface is disposed such that the scratched surface is situated on a vehicle-interior side upon the laminated glass for automobile windows being attached to an automobile.
    Type: Application
    Filed: October 16, 2023
    Publication date: February 8, 2024
    Applicant: AGC Inc.
    Inventors: Yoshinobu MORITA, Kuniko NAGAI
  • Publication number: 20240047723
    Abstract: An oxide ion-conducting solid electrolyte containing a mayenite-type compound having a representative composition represented by Ca12Al14O33, and 9 mol % to 30 mol % of titanium (Ti) in terms of TiO2.
    Type: Application
    Filed: October 16, 2023
    Publication date: February 8, 2024
    Applicant: AGC Inc.
    Inventors: Yoshitake TODA, Satoru TOMENO, Hiroshi KAGA, Kazuhiko YAMADA
  • Publication number: 20240045320
    Abstract: A reflective mask blank includes a substrate; a multilayer reflective film that reflects EUV light; a protection film that protects the multilayer reflective film; and an absorption film that absorbs the EUV light, in this order. The protection film contains 50 at % or more of Rh. When a band-shaped gray scale image parallel to an interface between the protection film and the multilayer reflective film is obtained by imaging a cross section of the protection film with a transmission electron microscope (TEM) and a luminance profile of the gray scale image in a longitudinal direction of the gray scale image is created, a number of peaks of the luminance profile per 100 nm in the longitudinal direction of the gray scale image is 50 or more.
    Type: Application
    Filed: October 20, 2023
    Publication date: February 8, 2024
    Applicant: AGC Inc.
    Inventors: Takuma KATO, Daijiro AKAGI, Takeshi OKATO, Ryusuke OISHI, Yusuke ONO
  • Publication number: 20240045319
    Abstract: A reflective mask blank for EUV lithography includes: a substrate; a multilayer reflective film for reflecting EUV light; and a phase shift film for shifting a phase of EUV light, the multilayer reflective film and the phase shift film formed on or above the substrate in this order. The phase shift film includes a layer 1 including ruthenium (Ru) and at least one selected from the group consisting of oxygen (O) and nitrogen (N). Among diffraction peaks derived from the phase shift film observed at 2?: from 20° to 50° by out-of-plane XRD method, a peak having the highest intensity has a half value width FWHM of 1.0° or more.
    Type: Application
    Filed: October 17, 2023
    Publication date: February 8, 2024
    Applicant: AGC Inc.
    Inventors: Daijiro AKAGI, Hirotomo Kawahara, Toshiyuki Uno, Ichiro Ishikawa, Kenichi Sakaki
  • Patent number: 11894625
    Abstract: An antenna includes an antenna conductor to be provided on an exterior side of a chassis and a flexible substrate. The flexible substrate includes a first insulating portion that is a portion of a sheet-shaped dielectric where the sheet-shaped dielectric is folded, a grounding conductor provided between the first insulating portion and the chassis, a second insulating portion that is a portion of the sheet-shaped dielectric where the sheet-shaped dielectric is not folded, and a signal line configured to feed power to the antenna conductor. A thickness of the first insulating portion is greater than a thickness of the second insulating portion.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: February 6, 2024
    Assignee: AGC Inc.
    Inventors: Yasuo Morimoto, Takeshi Motegi, Toshiki Sayama, Motoshi Ono, Osamu Kagaya
  • Patent number: 11886006
    Abstract: The present invention provides a polymer optical waveguide having a core, an under cladding and an over cladding, in which: the polymer optical waveguide has a first section on one end side in the light propagation direction where no portion of the over cladding exists and the core and the under cladding are exposed, and a second section on the other end side in the light propagation direction where the core is covered with the under cladding and the over cladding; and a relative refractive index difference among the core, the under cladding and the over cladding, a core width and core height in an end surface at the one end side of the first section, and a core width and core height in an end surface at the other end side of the second section satisfy predetermined relationships.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: January 30, 2024
    Assignee: AGC Inc.
    Inventors: Naoya Wada, Shotaro Takenobu, Kenta Kobayashi, Seiki Ohara