Patents by Inventor Akio Koike

Akio Koike 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: 20220402175
    Abstract: A web forming apparatus includes a drum portion and a second web forming unit. The drum portion has an accommodating chamber capable of accommodating fragments, and accommodating powder supplied from a first supplying unit. The second web forming unit forms a second web by letting a mixture containing the fragments and the powder falling from the drum portion accumulate. The first supplying unit includes a storing chamber for storing the powder and an outlet portion provided below the storing chamber. The powder goes out of the storing chamber via the outlet portion. The drum portion has meshes formed in a net demarcating the accommodating chamber. The powder is able to pass through the meshes. The outlet portion is provided vertically over the net of the drum portion.
    Type: Application
    Filed: June 16, 2022
    Publication date: December 22, 2022
    Inventors: Hisashi KOIKE, Satomi YOSHIOKA, Akio ITO
  • Publication number: 20220326637
    Abstract: There is provided a consumable supply method for supplying a refill consumable stored in a refill consumable container to a consumable container installable in an equipment body. The consumable supply method includes removing a refill information storage device storing information on the refill consumable from the refill consumable container; removing an information storage device storing information on a consumable contained in the consumable container, the information being for exchange with the equipment body, from the consumable container; and attaching the refill information storage device removed from the refill consumable container as an information storage device to the consumable container in place of the information storage device removed from the consumable container.
    Type: Application
    Filed: April 6, 2022
    Publication date: October 13, 2022
    Inventors: Toshio KOIKE, Daisuke TAKAHASHI, Akio KOSUGE, Shinichi AKATSU, Daisuke ITO, Atsushi NAGATA, Takayuki ISAWA
  • Patent number: 11274058
    Abstract: A crystallized glass that: has a visible light transmittance of at least 85% when the thickness thereof is converted to 0.8 mm; has a haze value of no more than 1.0% when the thickness thereof is converted to 0.8 mm; contains, in terms of mass % on an oxide basis, 58%-70% SiO2, 15%-30% Al2O3, 2%-10% Li2O, 0%-5% Na2O, 0%-2% K2O, 0%-1.8% SrO, 0%-2% BaO, 0.5%-6% SnO2, 0.5%-6% ZrO2, and 0%-6% P2O5; has a total SrO and BaO content of 0.1%-3%; and has a total Na2O and K2O content of 1%-5%.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: March 15, 2022
    Assignee: AGC Inc.
    Inventors: Qing Li, Akio Koike, Kazuki Kanehara
  • Publication number: 20220064054
    Abstract: The present invention provides crystallized glass of three-dimensional shape for easily producing chemically strengthened glass of three-dimensional shape that resists damage and has exceptional transparency. This crystallized glass of three-dimensional shape: contains crystals; has light transmittance in terms of a thickness of 0.8 mm of 80% or higher; and contains 45-74% SiO2, 1-30% Al2O3, 1-25% Li2O, 0-10% Na2O, 0-5% K2O, a total of 0-15% of SnO2 and/or ZrO2, and 0-12% P2O5, these amounts expressing the oxide-based mass percentage.
    Type: Application
    Filed: November 12, 2021
    Publication date: March 3, 2022
    Applicant: AGC Inc.
    Inventors: Qing LI, Kenji IMAKITA, Akio KOIKE, Eriko MAEDA
  • Publication number: 20210347682
    Abstract: The present invention relates to a glass ceramic having a visible-light transmittance of 85% or more in terms of a thickness of 0.7 mm, and a haze value of 1.0% or less in terms of a thickness of 0.7 mm, and including, in mass % on an oxide basis: 45-70% of SiO2; 1-15% of Al2O3; and 10-25% of Li2O.
    Type: Application
    Filed: July 22, 2021
    Publication date: November 11, 2021
    Applicant: AGC Inc.
    Inventors: Qing LI, Yusuke ARAI, Akio KOIKE, Kazutaka ONO, Hitomi FURUTA, Shigeki SAWAMURA
  • Patent number: 11028015
    Abstract: A glass ball has a density of 2.3 to 3.2 g/cm3, a Young's modulus of 60 to 150 GPa, and an average coefficient of thermal expansion at 50 to 350° C. being 40×10?7 to 120×10?7/° C. The glass ball is formed of a glass material including, as represented by mole percentage based on oxides, 30 to 75 mol % of SiO2, 2 to 30 mol % of Al2O3, and 5 to 25 mol % of R2O, where R is at least one kind selected from Li, Na and K. The glass ball includes a compressive stress layer in a surface thereof.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: June 8, 2021
    Assignee: AGC Inc.
    Inventors: Akio Koike, Makoto Katsuta, Suguru Murayama, Kenji Imakita
  • Publication number: 20210009462
    Abstract: The purpose of the present invention is to provide a glass for chemical strengthening that exhibits a high strength after chemical strengthening and is resistant to devitrification. The present invention relates to a glass for chemical strengthening that contains, expressed as mol% on an oxide basis, 55 to 70% SiO2, 10 to 25% Al2O3, 1 to 20% Li2O, 0 to 8% CaO, 0 to 8% SrO, and 0 to 5% ZrO2, in which the sum of the contents of CaO and SrO is 1.5 to 10%, the sum of the contents of Na2O and K2O is 3 to 11%, and the value X given by the formula ([Li2O]+[K2O])/[Al2O3] is 0.1 to 1.1.
    Type: Application
    Filed: September 28, 2020
    Publication date: January 14, 2021
    Applicant: AGC Inc.
    Inventors: Suguru MURAYAMA, Akio KOIKE
  • Patent number: 10865134
    Abstract: A wavelength-selective transmissive glass has a light transmittance Tmore than 315 nm and 400 nm or less at a wavelength of more than 315 nm and 400 nm or less represented by the formula shown below of 1% or more in terms of a plate thickness of 6 mm and a light transmittance T315 nm or less at a wavelength of 315 nm or less represented by the formula shown below of 60% or less in terms of a plate thickness of 6 mm. Ak is a weighting factor at a wavelength k (nm) for calculating T (light transmittance) defined in ISO-9050:2003, and Tk is a transmittance at the wavelength k (nm) in terms of a plate thickness of 6 mm: Tmore than 315 nm and 400 nm or less=(?k=more than 315400Ak×Tk)/(?k=more than 315400Ak) T315 nm or less=(?k=300315Ak×Tk)/(?k=300315Ak).
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: December 15, 2020
    Assignees: AGC Inc., TSUBOTA LABORATORY, INC.
    Inventors: Kensuke Nagai, Tetsuya Nakashima, Yutaka Kuroiwa, Hiroyuki Hijiya, Masamichi Tanida, Akio Koike, Manabu Nishizawa, Kazuo Tsubota, Toshihide Kurihara, Hidemasa Torii
  • Publication number: 20200369560
    Abstract: A cover glass includes a chemically strengthened glass including a first main surface having an area of 12,000 mm2 or larger and a second main surface, and an anti-fingerprint treated layer provided on or above the first main surface. The chemically strengthened glass has a depth of compressive stress layer DOL of 20 ?m or larger, has a tensile stress layer having a P2O5 content of 2 mol % or less, and has A×B of 135 or larger, provided that, among oxide components constituting the tensile stress layer, a total concentration of Li2, Na2O, and K2O is A mol % and a concentration of Al2O3 is B mol %. The anti-fingerprint treated layer includes a surface having a frictional electrification amount, as determined by Method D described in JIS L1094:2014, of 0 kV or less and ?1.5 kV or more.
    Type: Application
    Filed: August 12, 2020
    Publication date: November 26, 2020
    Applicant: AGC Inc.
    Inventors: Yosuke TAKEDA, Akio KOIKE, Toru IKEDA, Yasunari SAITO, Makoto FUKAWA, Takaaki MURAKAMI
  • Publication number: 20200346969
    Abstract: The present invention provides crystallized glass of three-dimensional shape for easily producing chemically strengthened glass of three-dimensional shape that resists damage and has exceptional transparency. This crystallized glass of three-dimensional shape: contains crystals; has light transmittance in terms of a thickness of 0.8 mm of 80% or higher; and contains 45-74% SiO2, 1-30% Al2O3, 1-25% Li2O, 0-10% Na2O, 0-5% K2O, a total of 0-15% of SnO2 and/or ZrO2, and 0-12% P2O5, these amounts expressing the oxide-based mass percentage.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 5, 2020
    Applicant: AGC Inc.
    Inventors: Qing LI, Kenji IMAKITA, Akio KOIKE, Eriko MAEDA
  • Publication number: 20200239354
    Abstract: A crystallized glass that: has a visible light transmittance of at least 85% when the thickness thereof is converted to 0.8 mm; has a haze value of no more than 1.0% when the thickness thereof is converted to 0.8 mm; contains, in terms of mass % on an oxide basis, 58%-70% SiO2, 15%-30% Al2O3, 2%-10% Li2O, 0%-5% Na2O, 0%-2% K2O, 0%-1.8% SrO, 0%-2% BaO, 0.5%-6% SnO2, 0.5%-6% ZrO2, and 0%-6% P2O5; has a total SrO and BaO content of 0.1%-3%; and has a total Na2O and K2O content of 1%-5%.
    Type: Application
    Filed: January 21, 2020
    Publication date: July 30, 2020
    Applicant: AGC Inc.
    Inventors: Qing LI, Akio KOIKE, Kazuki KANEHARA
  • Publication number: 20200207660
    Abstract: The purpose of the present invention is to provide a chemically strengthened glass having excellent transparency and strength and being scratch resistant. The present invention pertains to a chemically strengthened glass that: has a compressive stress layer on the surface thereof; has a visible light transmittance of at least 70% when the thickness thereof is converted to 0.8 mm; has a surface compressive stress of at least 600 MPa; has a compressive stress depth of at least 80 ?m; and contains a ?-spodumene.
    Type: Application
    Filed: January 21, 2020
    Publication date: July 2, 2020
    Applicant: AGC Inc.
    Inventors: Qing LI, Kenji IMAKITA, Akio KOIKE, Eriko MAEDA
  • Publication number: 20200156994
    Abstract: The present invention pertains to a glass for strengthening, that: has an average transmittance of at least 70% when converted to a thickness of 0.8 mm at a wavelength of 380-780 nm; has a haze value of no more than 0.7% when converted to a thickness of 0.8 mm in a C light source; has a Young's modulus of at least 85 GPa; has a fracture toughness value of at least 0.90 MPa·m1/2; a thermal conductivity at 20° C. of at least 1.3 W/m·K; and comprises a lithium aluminosilicate crystallized glass.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 21, 2020
    Applicant: AGC Inc.
    Inventors: Qing Li, Akio Koike, Eriko Maeda
  • Publication number: 20200131086
    Abstract: A glass ball has a density of 2.3 to 3.2 g/cm3, a Young's modulus of 60 to 150 GPa, and an average coefficient of thermal expansion at 50 to 350° C. being 40×10?7 to 120×10?7/° C. The glass ball is formed of a glass material including, as represented by mole percentage based on oxides, 30 to 75 mol % of SiO2, 2 to 30 mol % of Al2O3, and 5 to 25 mol % of R2O, where R is at least one kind selected from Li, Na and K. The glass ball includes a compressive stress layer in a surface thereof.
    Type: Application
    Filed: December 30, 2019
    Publication date: April 30, 2020
    Applicant: AGC Inc.
    Inventors: Akio KOIKE, Makoto KATSUTA, Suguru MURAYAMA, Kenji IMAKITA
  • Publication number: 20200102241
    Abstract: The present invention pertains to: a tempered glass which is obtained by physically strengthening a glass having an average coefficient of thermal expansion at 50-350° C. of (20×10?7)-(50×10?7)/)° C. and a glass transition temperature of 560° C. or higher; and a tempered glass obtained by physically strengthening a glass containing, in mole percent on an oxide basis, 0-4% of R2O (R2O is defined in the specification) and 5-25% of B2O3.
    Type: Application
    Filed: December 4, 2019
    Publication date: April 2, 2020
    Applicant: AGC Inc.
    Inventors: Junko MIYASAKA, Akio Koike, Hiroyuki Yamamoto
  • Publication number: 20190352227
    Abstract: A chemically strengthened glass includes a compressive stress layer. A compressive stress is 200 MPa or more at a surface of the chemically strengthened glass. A depth in the compressive stress layer at which the compressive stress is 50 MPa from the surface is 50 ?m or more. A depth in the compressive stress layer at which the compressive stress is 30 MPa from the surface is 60 ?m or more. A critical stress intensity factor KIC is 0.75 MPa·m1/2 or more.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 21, 2019
    Applicant: AGC Inc.
    Inventors: Akio Koike, Yusuke Kobayashi
  • Publication number: 20180297888
    Abstract: A wavelength-selective transmissive glass has a light transmittance Tmore than 315 nm and 400 nm or less at a wavelength of more than 315 nm and 400 nm or less represented by the formula shown below of 1% or more in terms of a plate thickness of 6 mm and a light transmittance T315 nm or less at a wavelength of 315 nm or less represented by the formula shown below of 60% or less in terms of a plate thickness of 6 mm. Ak is a weighting factor at a wavelength k (nm) for calculating T (light transmittance) defined in ISO-9050:2003, and Tk is a transmittance at the wavelength k (nm) in terms of a plate thickness of 6 mm: Tmore than 315 nm and 400 nm or less=(?k=more than 315400 Ak×Tk)/(?k=more than 315400 Ak) T315 nm or less=(?k=300315 Ak×Tk)/(?k=300315 Ak).
    Type: Application
    Filed: June 1, 2018
    Publication date: October 18, 2018
    Applicants: ASAHI GLASS COMPANY, LIMITED, TSUBOTA LABORATORY, INC.
    Inventors: Kensuke NAGAI, Tetsuya NAKASHIMA, Yutaka KUROIWA, Hiroyuki HIJIYA, Masamichi TANIDA, AKIO KOIKE, Manabu NISHIZAWA, Kazuo TSUBOTA, Toshihide KURIHARA, Hidemasa TORII
  • Publication number: 20180229477
    Abstract: A glass-resin composite including a glass sheet and a resin film, in which: the resin film is provided all over at least one of main surfaces of the glass sheet; the glass sheet is of a chemically strengthened glass having a compressive stress layer in each of surface layers of the main surfaces and edge surfaces; the glass sheet has a sheet thickness t1 of 0.05-0.25 mm; and the sheet thickness t1, a thickness t2 of the resin film, and yield stress P of the resin film satisfy a relation of {t1 (mm)×4(N/mm2)<t2 (mm)×P(N/mm2)}.
    Type: Application
    Filed: April 16, 2018
    Publication date: August 16, 2018
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Akio Koike, Junichi Kakuta, Hideaki Hayashi
  • Publication number: 20180215651
    Abstract: Provided is a chemically strengthened glass having a sheet thickness of less than 300 ?m, having a surface compressive stress of 200 MPa or more and satisfying CT?4×(t/1000+0.02)?2+90, in which an internal tensile stress is CT (MPa) and the sheet thickness is t (?m).
    Type: Application
    Filed: February 12, 2018
    Publication date: August 2, 2018
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Shusaku AKIBA, Akio KOIKE
  • Patent number: 9963379
    Abstract: The present invention relates to an alkali-free glass substrate, having a strain point of 680° C. or higher, a Young's modulus of 78 GPa or greater, an UV transmittance at a wavelength of 300 nm of from 40% to 85% in terms of 0.5 mm thickness, an in-plane distribution of the UV transmittance at a wavelength of 300 nm in a G6-sized substrate of 1% or less in terms of 0.5 mm thickness, an average cooling rate around the glass transition point obtained according to a rate cooling method of 400° C./min or lower, and an in-plane distribution of the average cooling rate of 40° C./min or less.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: May 8, 2018
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hirofumi Tokunaga, Akio Koike, Masaya Kunigita