Patents by Inventor Takaaki Murakami

Takaaki Murakami 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: 20230157301
    Abstract: The present invention relates to an antiviral material including a Cu-M-O compound, in which the Cu at least includes a monovalent-state Cu and the M is at least one element selected from the group consisting of B, Al, Sc, Ti, Co, Cr, Ni, Ga, Y, Zr, In, Rh, and a lanthanoid.
    Type: Application
    Filed: January 20, 2023
    Publication date: May 25, 2023
    Applicant: AGC INC.
    Inventors: Satoshi KASHIWABARA, Takahiro MASHIMO, Kumiko SUWA, Yoshitake TODA, Nobuhiro NAKAMURA, Takaaki MURAKAMI
  • Patent number: 11531140
    Abstract: The object of the present invention is to provide an optical laminate capable of reducing reflectance not only with respect to light incident vertically but also light incident obliquely, and further capable of obtaining a neutral reflected color tone even when light is incident obliquely. The optical laminate includes a base material, an antireflection film provided on one surface of the base material, and a light shielding film provided on the other surface of the base material. The optical laminate satisfies all of the following characteristics (i) to (iii): 0.5<R(?1a,?1a)/R(?1b,?1b)<1.5;??(i) Y(?2)?3%; and??(ii) Y(?3)?10%;??(iii) in which R (?, ?) designates reflectance when light of a wavelength of ? nm is incident at an angle of ?, provided that ?1a=380 nm, ?1a=60° and ?1b=650 nm, ?1b=60°; and Y (?) designates luminous reflectance at an incident angle of ?, provided that ?2=5° and ?3=60°.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: December 20, 2022
    Assignee: AGC Inc.
    Inventors: Yuko Tachibana, Keisuke Matsuda, Takaaki Murakami, Toshinari Watanabe, Tomoyuki Kobayashi
  • Patent number: 11267750
    Abstract: The present invention relates to a translucent structure having a surface unevenness shape which has: an area ratio of surface flat regions in which an angle formed with a flat surface is in a range of 0° to 0.5° of in a range of 0% to 5.8%; a projection density of in a range of 0.0001/?m2 to 0.05/?m2; a projection area ratio of in a range of 5.5% to 50%; a skewness Ssk which represents the degree of non-symmetry of in a range of ?0.5 to 1.1; a load area factor Smr1 at a boundary between a projected mountain portion and a core portion of in a range of 0% to 14.5%; and an arithmetic average surface roughness Sa of in a range of 0.06 ?m to 0.143 ?m.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: March 8, 2022
    Assignee: AGC INC.
    Inventors: Masanobu Isshiki, Toru Ikeda, Takaaki Murakami, Yosuke Takeda, Minoru Tamada
  • Publication number: 20210323084
    Abstract: An electrode device for water-cooling type resistance welding that constantly circulates cooling water efficiently to the proximity of an electrode tip, allowing the electrode to stably cool down. A cooling pipe 11 is inserted inside a device body 1 from a lower side thereof, and cooling water ejected from a tip opening 11a of the cooling pipe 11 cools a cap tip 10 placed on the tip of a shank 8. The cooling pipe 11 is movable in the axial direction of the device body 1 and fixable at any position. As a result, even with a change in the length of the shank 8, the tip opening 11a of the cooling pipe 11 can always be positioned in the proximity of the cap tip 10, allowing the cap tip 10 to cool down reliably and the form of the electrode tip to be maintained stably for a long time.
    Type: Application
    Filed: July 1, 2021
    Publication date: October 21, 2021
    Applicant: SHINKOKIKI CO., LTD.
    Inventors: Yasuo AKAO, Takaaki MURAKAMI
  • Patent number: 10948633
    Abstract: A translucent structure includes a translucent substrate and an antireflection layer provided on a visible side of the translucent substrate so that reflectivity of the translucent structure based on an SCI method is 3% or less. A visible-side outermost surface of the translucent structure includes a concave and convex structure as follows. The concave and convex structure includes a first convex portion and a second convex portion. The first convex portion has a diameter exceeding 10 ?m and 185 ?m or less in a specific section, and a specific maximum height is 0.2 to 8 ?m. The second convex portion has a diameter exceeding 1 ?m in a specific section, the number thereof is 0.0001 to 1.2 per 1 ?m2, and a specific average height thereof is 0.1 to 8 ?m.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: March 16, 2021
    Assignee: AGC Inc.
    Inventors: Takaaki Murakami, Azusa Takai, Toru Ikeda, Yosuke Takeda
  • 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: 20200363571
    Abstract: A transparent substrate with an antiglare film, includes a transparent substrate having first and second main surfaces and an antiglare film formed on the first main surface. The antiglare film includes a low refractive index layer formed on the first main surface and a high refractive index layer formed in the low refractive index layer and having a refractive index different from that of the low refractive index layer. The low refractive index layer has nlow of 1.4 to 1.8. The high refractive index layer has nhigh at least 0.1 higher than the nlow. The high refractive index layer has an area ratio of its portion where a surface inclination to the first main surface is 0.5° or less of 15% or less. An average length RSm of elements of a roughness curve of an outermost surface on a first main surface side is 50 ?m or less.
    Type: Application
    Filed: August 5, 2020
    Publication date: November 19, 2020
    Applicant: AGC Inc.
    Inventors: Masanobu ISSHIKI, Toru IKEDA, Yosuke TAKEDA, Takamichi SHIMOSAKA, Takaaki MURAKAMI
  • Patent number: 10802318
    Abstract: There is provided a transparent substrate with an antifouling film that, when used as a cover member with an antifouling film of an electrostatic in-cell touch panel-type liquid crystal device, can reduce the whitening of a liquid crystal screen while fully maintaining an antifouling property and touch sensitivity. The transparent substrate with an antifouling film includes: a transparent substrate; and an antifouling film provided as an outermost layer on one main surface of the transparent substrate, wherein a surface shape of the antifouling film is a rugged shape whose arithmetic mean roughness Ra is 0.01 ?m or more, and surface resistivity measured on the surface of the antifouling film is 1.0×109 to 1.0×1013?/.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: October 13, 2020
    Assignee: AGC Inc.
    Inventors: Yosuke Takeda, Toru Ikeda, Takamichi Shimosaka, Takaaki Murakami
  • Patent number: 10677963
    Abstract: A curved substrate with a film includes a substrate having a first main surface, a second main surface and an end surface, and an antiglare film provided on the first main surface. The substrate has a flat portion and a bent portion. A value obtained by dividing a reflected-image diffusibility index value R of the bent portion by the sum of the reflected-image diffusibility index value R of the bent portion and a reflected-image diffusibility index value R of the flat portion is 0.3 or higher and 0.8 or less.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: June 9, 2020
    Assignee: AGC Inc.
    Inventors: Azusa Takai, Yusuke Kobayashi, Kazunobu Maeshige, Takaaki Murakami
  • Publication number: 20190383971
    Abstract: The object of the present invention is to provide an optical laminate capable of reducing reflectance not only with respect to light incident vertically but also light incident obliquely, and further capable of obtaining a neutral reflected color tone even when light is incident obliquely. The optical laminate includes a base material, an antireflection film provided on one surface of the base material, and a light shielding film provided on the other surface of the base material. The optical laminate satisfies all of the following characteristics (i) to (iii): 0.5<R(?1a,?1a)/R(?1b,?1b)<1.5;??(i) Y(?2)?3%; and??(ii) Y(?3)?10%;??(iii) in which R (?, ?) designates reflectance when light of a wavelength of ? nm is incident at an angle of ?, provided that ?1a=380 nm, ?1a=60° and ?1b=650 nm, ?1b=60°; and Y (?) designates luminous reflectance at an incident angle of ?, provided that ?2=5° and ?3=60°.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 19, 2019
    Applicant: AGC Inc.
    Inventors: Yuko Tachibana, Keisuke Matsuda, Takaaki Murakami, Toshinari Watanabe, Tomoyuki Kobayashi
  • Patent number: 10408981
    Abstract: A near-infrared cut filter has a transparent substrate and an optical multilayer film formed on the transparent substrate and including high-refractive index films each having a refractive index at a wavelength of 500 nm in a range of 2.0 to 2.8 and low-refractive index films each having a refractive index at the wavelength of 500 nm of less than 1.6. The multilayer film is formed such that the high-refractive and low-refractive index films are alternately stacked and that the filter has spectral transmittance characteristic for the entire wavelength range of 450 nm to less than 550 nm and part of that wavelength range for incident light having incident angle of 0 degree, and part of wavelength range of 450 nm to less than 550 nm and the entire wavelength range of 450 nm to less than 550 nm for incident light having incident angle of 40 degrees.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: September 10, 2019
    Assignee: AGC Inc.
    Inventors: Akihiko Yoshihara, Takaaki Murakami
  • Publication number: 20190256410
    Abstract: The present invention relates to a translucent structure having a surface unevenness shape which has: an area ratio of surface flat regions in which an angle formed with a flat surface is in a range of 0° to 0.5° of in a range of 0% to 5.8%; a projection density of in a range of 0.0001/?m2 to 0.05/?m2; a projection area ratio of in a range of 5.5% to 50%; a skewness Ssk which represents the degree of non-symmetry of in a range of ?0.5 to 1.1; a load area factor Smr1 at a boundary between a projected mountain portion and a core portion of in a range of 0% to 14.5%; and an arithmetic average surface roughness Sa of in a range of 0.06 ?m to 0.143 ?m.
    Type: Application
    Filed: February 19, 2019
    Publication date: August 22, 2019
    Applicant: AGC INC.
    Inventors: Masanobu ISSHIKI, Toru Ikeda, Takaaki Murakami, Yosuke Takeda, Minoru Tamada
  • Patent number: 10345498
    Abstract: Provided is an infrared cut filter including: an infrared absorbing layer of a transparent resin containing an infrared absorber; and a selected wavelength cut layer stacked on the infrared absorbing layer, wherein the following requirements are satisfied. (i) In a spectral transmittance curve for an incident angle of 0°, an average transmittance in a 450-600 nm range is 80% or more, a transmittance in a 700-1200 nm range is 2.0% or less, and D0 represented by the following expression is less than 0.04. D0 (%/nm)=(Tmax·0?Tmin·0)/(?(Tmax·0)??(Tmin·0)) (ii) wherein a spectrum transmittance curve for an incident angle of 30°, an average transmittance in the 450 to 600 nm range is 80% or more, a transmittance in the 700-1200 nm range is 2.0% or less, and D30 represented by the following expression is less than 0.04.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: July 9, 2019
    Assignee: AGC Inc.
    Inventors: Kyoko Yamamoto, Takaaki Murakami, Mitsuyuki Tatemura, Hiroshi Kumai
  • Publication number: 20180335659
    Abstract: There is provided a transparent substrate with an antifouling film that, when used as a cover member with an antifouling film of an electrostatic in-cell touch panel-type liquid crystal device, can reduce the whitening of a liquid crystal screen while fully maintaining an antifouling property and touch sensitivity. The transparent substrate with an antifouling film includes: a transparent substrate; and an antifouling film provided as an outermost layer on one main surface of the transparent substrate, wherein a surface shape of the antifouling film is a rugged shape whose arithmetic mean roughness Ra is 0.01 ?m or more, and surface resistivity measured on the surface of the antifouling film is 1.0×109 to 1.0×1013?/.
    Type: Application
    Filed: May 21, 2018
    Publication date: November 22, 2018
    Applicant: Asahi Glass Company, Limited
    Inventors: Yosuke Takeda, Toru Ikeda, Takamichi Shimosaka, Takaaki Murakami
  • Publication number: 20180185875
    Abstract: A translucent structure includes a translucent substrate and an antireflection layer provided on a visible side of the translucent substrate so that reflectivity of the translucent structure based on an SCI method is 3% or less. A visible-side outermost surface of the translucent structure includes a concave and convex structure as follows. The concave and convex structure includes a first convex portion and a second convex portion. The first convex portion has a diameter exceeding 10 ?m and 185 ?m or less in a specific section, and a specific maximum height is 0.2 to 8 ?m. The second convex portion has a diameter exceeding 1 ?m in a specific section, the number thereof is 0.0001 to 1.2 per 1 ?m2, and a specific average height thereof is 0.1 to 8 ?m.
    Type: Application
    Filed: February 28, 2018
    Publication date: July 5, 2018
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Takaaki MURAKAMI, Azusa Takai, Toru Ikeda, Yosuke Takeda
  • Publication number: 20180052254
    Abstract: A curved substrate with a film includes a substrate having a first main surface, a second main surface and an end surface, and an antiglare film provided on the first main surface. The substrate has a flat portion and a bent portion. A value obtained by dividing a reflected-image diffusibility index value R of the bent portion by the sum of the reflected-image diffusibility index value R of the bent portion and a reflected-image diffusibility index value R of the flat portion is 0.3 or higher and 0.8 or less.
    Type: Application
    Filed: October 30, 2017
    Publication date: February 22, 2018
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Azusa Takai, Yusuke Kobayashi, Kazunobu Maeshige, Takaaki Murakami
  • Patent number: 9876039
    Abstract: A thin-film transistor substrate constituting a liquid crystal display includes: a thin-film transistor including, a gate electrode, a gate insulating film covering the gate electrode, a semiconductor layer opposing the gate electrode via the gate insulating film, a channel protective film covering the semiconductor layer, a protective film covering over the channel protective film, source and drain electrodes in contact with the semiconductor layer through first contact holes penetrating through the protective film and the channel protective film; a first electrode electrically connected to the drain electrode; a gate wiring extending from the gate electrode; and a source wiring electrically connected to the source electrode. The source wiring and first electrode are respectively electrically connected to the source electrode and drain electrode through respective second contact holes penetrating through the protective film.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: January 23, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Rii Hirano, Naoki Nakagawa, Takaaki Murakami, Kazunori Inoue, Koji Oda
  • Publication number: 20170373098
    Abstract: A thin-film transistor substrate constituting a liquid crystal display includes: a thin-film transistor including, a gate electrode, a gate insulating film covering the gate electrode, a semiconductor layer opposing the gate electrode via the gate insulating film, a channel protective film covering the semiconductor layer, a protective film covering over the channel protective film, source and drain electrodes in contact with the semiconductor layer through first contact holes penetrating through the protective film and the channel protective film; a first electrode electrically connected to the drain electrode; a gate wiring extending from the gate electrode; and a source wiring electrically connected to the source electrode. The source wiring and first electrode are respectively electrically connected to the source electrode and drain electrode through respective second contact holes penetrating through the protective film.
    Type: Application
    Filed: January 5, 2016
    Publication date: December 28, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Rii HIRANO, Naoki NAKAGAWA, Takaaki MURAKAMI, Kazunori INOUE, Koji ODA
  • Publication number: 20170192133
    Abstract: An optical element includes a transparent substrate configured to transmit light; a resin layer provided on one surface of the transparent substrate, and configured to transmit light; and a first antireflection film formed on the resin layer.
    Type: Application
    Filed: March 22, 2017
    Publication date: July 6, 2017
    Applicant: Asahi Glass Company, Limited
    Inventors: Takaaki MURAKAMI, Hiroshi SHIMODA, Aya IKOMA, Kiyoshi TAMAI
  • Publication number: 20160018576
    Abstract: Provided is an infrared cut filter including: an infrared absorbing layer of a transparent resin containing an infrared absorber; and a selected wavelength cut layer stacked on the infrared absorbing layer, wherein the following requirements are satisfied. (i) In a spectral transmittance curve for an incident angle of 0°, an average transmittance in a 450-600 nm range is 80% or more, a transmittance in a 700-1200 nm range is 2.0% or less, and D0 represented by the following expression is less than 0.04. D0 (%/nm)=(Tmax·0?Tmin·0)/(?(Tmax·0)??(Tmin·0)) (ii) wherein a spectrum transmittance curve for an incident angle of 30°, an average transmittance in the 450 to 600 nm range is 80% or more, a transmittance in the 700-1200 nm range is 2.0% or less, and D30 represented by the following expression is less than 0.04.
    Type: Application
    Filed: September 30, 2015
    Publication date: January 21, 2016
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Kyoko Yamamoto, Takaaki Murakami, Mitsuyuki Tatemura, Hiroshi Kumai