Patents by Inventor Yoshitaka Sugawara

Yoshitaka Sugawara 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: 20240103206
    Abstract: An anti-glare film is attached on a surface of a display, and includes an anti-glare layer. The anti-glare layer is set to have a sparkle value falling within a range from 6 to 10, which is defined based on a value of a standard deviation of luminance distribution of the display under a state in which the anti-glare film is attached on the surface of the display, a value of specular gloss of 30% or less, which is measured with 60-degree specular gloss, a value of transmission image clarity of 60% or less, which has an optical comb of 0.5 mm, and a haze value of 50% or less. Consequently, satisfactory anti-glare property can be provided while appropriately suppressing sparkle on the display.
    Type: Application
    Filed: December 8, 2023
    Publication date: March 28, 2024
    Applicant: DAICEL CORPORATION
    Inventors: Yoshitaka SUGAWARA, Masaki HAYASHI
  • Patent number: 11906702
    Abstract: An anti-glare film is prepared which have a ratio R/V of a scattered specular reflection intensity R to a total V of scattered reflection intensity being from 0.01 to 0.12 and an absolute value of a chromaticity b* of transmitted light being 3 or less. The anti-glare film includes a transparent substrate layer, and an anti-glare layer formed on at least one surface of the transparent substrate layer. The anti-glare layer may be a cured product of a curable composition including one or more types of a polymer component and one or more types of a curable resin precursor component, and in particular, at least two components selected from a polymer component and a curable resin precursor component can be phase separated through liquid phase spinodal decomposition. This anti-glare film can achieve non-coloring properties and anti-glare properties in a compatible manner.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: February 20, 2024
    Assignee: DAICEL CORPORATION
    Inventors: Yoshitaka Sugawara, Masaki Hayashi
  • Patent number: 11880051
    Abstract: An anti-glare film is attached on a surface of a display, and includes an anti-glare layer. The anti-glare layer is set to have a sparkle value falling within a range from 6 to 10, which is defined based on a value of a standard deviation of luminance distribution of the display under a state in which the anti-glare film is attached on the surface of the display, a value of specular gloss of 30% or less, which is measured with 60-degree specular gloss, a value of transmission image clarity of 60% or less, which has an optical comb of 0.5 mm, and a haze value of 50% or less. Consequently, satisfactory anti-glare property can be provided while appropriately suppressing sparkle on the display.
    Type: Grant
    Filed: March 31, 2023
    Date of Patent: January 23, 2024
    Assignee: DAICEL CORPORATION
    Inventors: Yoshitaka Sugawara, Masaki Hayashi
  • Publication number: 20230373192
    Abstract: An anti-glare film including a light reflectance of 3.8% or less and a haze of 40% or greater. A 60° gloss of the anti-glare film may be 15% or less. The anti-glare film includes a transparent substrate layer, and an anti-glare layer formed on at least one surface of the transparent substrate layer. The anti-glare layer may be a cured product of a curable composition including one or more types of a polymer component and one or more types of a curable resin precursor component, and in particular, at least two components selected from a polymer component and a curable resin precursor component can be phase separated through liquid phase spinodal decomposition. The anti-glare film has improved anti-reflection properties.
    Type: Application
    Filed: August 1, 2023
    Publication date: November 23, 2023
    Applicant: DAICEL CORPORATION
    Inventors: Yoshitaka SUGAWARA, Masaki HAYASHI, Kensaku HIROSE
  • Publication number: 20230350102
    Abstract: An anti-glare film is attached on a surface of a display, and includes an anti-glare layer. The anti-glare layer is set to have a sparkle value of 10 or less, which is defined based on a value of a standard deviation of luminance distribution of the display under a state in which the anti-glare film is attached on the surface of the display, a value of specular gloss of 40% or less, which is measured with 60-degree specular gloss, and a value of transmission image clarity of 40% or less, which has an optical comb of 0.5 mm. Consequently, satisfactory anti-glare property can be provided while appropriately suppressing sparkle on the display.
    Type: Application
    Filed: July 7, 2023
    Publication date: November 2, 2023
    Applicant: DAICEL CORPORATION
    Inventors: Yoshitaka SUGAWARA, Masaki HAYASHI
  • Patent number: 11772365
    Abstract: An anti-glare film including a light reflectance of 3.8% or less and a haze of 40% or greater. A 60° gloss of the anti-glare film may be 15% or less. The anti-glare film includes a transparent substrate layer, and an anti-glare layer formed on at least one surface of the transparent substrate layer. The anti-glare layer may be a cured product of a curable composition including one or more types of a polymer component and one or more types of a curable resin precursor component, and in particular, at least two components selected from a polymer component and a curable resin precursor component can be phase separated through liquid phase spinodal decomposition. The anti-glare film has improved anti-reflection properties.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: October 3, 2023
    Assignee: DAICEL CORPORATION
    Inventors: Yoshitaka Sugawara, Masaki Hayashi, Kensaku Hirose
  • Patent number: 11733431
    Abstract: An anti-glare film is attached on a surface of a display, and includes an anti-glare layer. The anti-glare layer is set to have a sparkle value of 10 or less, which is defined based on a value of a standard deviation of luminance distribution of the display under a state in which the anti-glare film is attached on the surface of the display, a value of specular gloss of 40% or less, which is measured with 60-degree specular gloss, and a value of transmission image clarity of 40% or less, which has an optical comb of 0.5 mm. Consequently, satisfactory anti-glare property can be provided while appropriately suppressing sparkle on the display.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: August 22, 2023
    Assignee: DAICEL CORPORATION
    Inventors: Yoshitaka Sugawara, Masaki Hayashi
  • Publication number: 20230244009
    Abstract: An anti-glare film is attached on a surface of a display, and includes an anti-glare layer. The anti-glare layer is set to have a sparkle value falling within a range from 6 to 10, which is defined based on a value of a standard deviation of luminance distribution of the display under a state in which the anti-glare film is attached on the surface of the display, a value of specular gloss of 30% or less, which is measured with 60-degree specular gloss, a value of transmission image clarity of 60% or less, which has an optical comb of 0.5 mm, and a haze value of 50% or less. Consequently, satisfactory anti-glare property can be provided while appropriately suppressing sparkle on the display.
    Type: Application
    Filed: March 31, 2023
    Publication date: August 3, 2023
    Applicant: DAICEL CORPORATION
    Inventors: Yoshitaka SUGAWARA, Masaki HAYASHI
  • Patent number: 11650357
    Abstract: An anti-glare film is attached on a surface of a display, and includes an anti-glare layer. The anti-glare layer is set to have a sparkle value falling within a range from 6 to 10, which is defined based on a value of a standard deviation of luminance distribution of the display under a state in which the anti-glare film is attached on the surface of the display, a value of specular gloss of 30% or less, which is measured with 60-degree specular gloss, a value of transmission image clarity of 60% or less, which has an optical comb of 0.5 mm, and a haze value of 50% or less. Consequently, satisfactory anti-glare property can be provided while appropriately suppressing sparkle on the display.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: May 16, 2023
    Assignee: DAICEL CORPORATION
    Inventors: Yoshitaka Sugawara, Masaki Hayashi
  • Patent number: 11624856
    Abstract: Gloss of a surface having a concave-convex structure is measured, and R/V, which is a ratio of a diffuse specular reflection intensity R to a sum total V of diffuse reflection intensities (in formula, the diffuse specular reflection intensity R represents a diffuse reflection intensity measured at an aperture angle of 1 degree by a variable-angle photometer in a diffuse specular reflection direction when visible light is radiated, at an angle of 45 degrees from a normal line, to the surface having the concave-convex structure of the anti-glare film, and the sum total V of diffuse reflection intensities represents a sum total of diffuse reflection intensities measured at an aperture angle of 1 degree by a variable-angle photometer for every 1 degree from ?45 degrees up to 45 degrees, including 0 degrees, with respect to the diffuse specular reflection direction when visible light is radiated, at an angle of 45 degrees from a normal line, to the surface having the concave-convex structure of the anti-glare film
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: April 11, 2023
    Assignee: DAICEL CORPORATION
    Inventor: Yoshitaka Sugawara
  • Patent number: 11598903
    Abstract: An anti-glare film including a light reflectance of 3.8% or less and a transmission image clarity of 80% or less. The transmission image clarity of the anti-glare film may be from 5 to 70%. The anti-glare film includes a transparent substrate layer, and an anti-glare layer formed on at least one surface of the transparent substrate layer. The anti-glare layer may be a cured product of a curable composition including one or more types of a polymer component and one or more types of a curable resin precursor component, and in particular, at least two components selected from a polymer component and a curable resin precursor component can be phase separated through liquid phase spinodal decomposition. The anti-glare film can satisfactorily provide anti-reflection properties, anti-glare properties, and transparency.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: March 7, 2023
    Assignee: DAICEL CORPORATION
    Inventors: Yoshitaka Sugawara, Masaki Hayashi
  • Publication number: 20220365246
    Abstract: Provided is an optical laminate produced by disposing an anti-glare layer on at least one side of a light-transmitting substrate, the anti-glare layer having a surface that has the arithmetic mean peak curvature Spc of 1.5 mm?1 or less in absolute value, the optical laminate has the adjusted transmission image clarity of 85% or less. On the anti-glare layer, further disposed is a low refractive index layer. The optical laminate including the low refractive index layer may have a luminous reflectance of 1.4 or less. The optical laminate improves the anti-glare properties.
    Type: Application
    Filed: June 4, 2020
    Publication date: November 17, 2022
    Applicant: Daicel Corporation
    Inventor: Yoshitaka SUGAWARA
  • Publication number: 20220206189
    Abstract: An anti-glare film is attached on a surface of a display, and includes an anti-glare layer. The anti-glare layer is set to have a sparkle value of 10 or less, which is defined based on a value of a standard deviation of luminance distribution of the display under a state in which the anti-glare film is attached on the surface of the display, a value of specular gloss of 40% or less, which is measured with 60-degree specular gloss, and a value of transmission image clarity of 40% or less, which has an optical comb of 0.5 mm. Consequently, satisfactory anti-glare property can be provided while appropriately suppressing sparkle on the display.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 30, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Yoshitaka SUGAWARA, Masaki HAYASHI
  • Publication number: 20220135807
    Abstract: The antiglare film of the present invention is provided with an antiglare layer having a haze value in a range from 50% to 99%, and in a state where the antiglare film is mounted on a surface of a display, a standard deviation of luminance distribution of the display is a value in a range from 0 to 6, and transmission image clarity at an optical comb width of 0.5 mm is a value in a range from 0% to 60%.
    Type: Application
    Filed: January 14, 2022
    Publication date: May 5, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Masaki HAYASHI, Yoshitaka SUGAWARA
  • Patent number: 11313995
    Abstract: An anti-glare film is attached on a surface of a display, and includes an anti-glare layer. The anti-glare layer is set to have a sparkle value of 10 or less, which is defined based on a value of a standard deviation of luminance distribution of the display under a state in which the anti-glare film is attached on the surface of the display, a value of specular gloss of 40% or less, which is measured with 60-degree specular gloss, and a value of transmission image clarity of 40% or less, which has an optical comb of 0.5 mm. Consequently, satisfactory anti-glare property can be provided while appropriately suppressing sparkle on the display.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: April 26, 2022
    Assignee: DAICEL CORPORATION
    Inventors: Yoshitaka Sugawara, Masaki Hayashi
  • Publication number: 20210141123
    Abstract: Gloss of a surface having a concave-convex structure is measured, and R/V, which is a ratio of a diffuse specular reflection intensity R to a sum total V of diffuse reflection intensities (in formula, the diffuse specular reflection intensity R represents a diffuse reflection intensity measured at an aperture angle of 1 degree by a variable-angle photometer in a diffuse specular reflection direction when visible light is radiated, at an angle of 45 degrees from a normal line, to the surface having the concave-convex structure of the anti-glare film, and the sum total V of diffuse reflection intensities represents a sum total of diffuse reflection intensities measured at an aperture angle of 1 degree by a variable-angle photometer for every 1 degree from ?45 degrees up to 45 degrees, including 0 degrees, with respect to the diffuse specular reflection direction when visible light is radiated, at an angle of 45 degrees from a normal line, to the surface having the concave-convex structure of the anti-glare film
    Type: Application
    Filed: March 23, 2018
    Publication date: May 13, 2021
    Applicant: DAICEL CORPORATION
    Inventor: Yoshitaka SUGAWARA
  • Publication number: 20200264340
    Abstract: An anti-glare film including a light reflectance of 3.8% or less and a transmission image clarity of 80% or less. The transmission image clarity of the anti-glare film may be from 5 to 70%. The anti-glare film includes a transparent substrate layer, and an anti-glare layer formed on at least one surface of the transparent substrate layer. The anti-glare layer may be a cured product of a curable composition including one or more types of a polymer component and one or more types of a curable resin precursor component, and in particular, at least two components selected from a polymer component and a curable resin precursor component can be phase separated through liquid phase spinodal decomposition. The anti-glare film can satisfactorily provide anti-reflection properties, anti-glare properties, and transparency.
    Type: Application
    Filed: September 21, 2018
    Publication date: August 20, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Yoshitaka SUGAWARA, Masaki HAYASHI
  • Publication number: 20200254729
    Abstract: An anti-glare film including a light reflectance of 3.8% or less and a haze of 40% or greater. A 60° gloss of the anti-glare film may be 15% or less. The anti-glare film includes a transparent substrate layer, and an anti-glare layer formed on at least one surface of the transparent substrate layer. The anti-glare layer may be a cured product of a curable composition including one or more types of a polymer component and one or more types of a curable resin precursor component, and in particular, at least two components selected from a polymer component and a curable resin precursor component can be phase separated through liquid phase spinodal decomposition. The anti-glare film has improved anti-reflection properties.
    Type: Application
    Filed: September 21, 2018
    Publication date: August 13, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Yoshitaka SUGAWARA, Masaki HAYASHI, Kensaku HIROSE
  • Publication number: 20200257161
    Abstract: An anti-glare film is prepared which have an absolute value of a chromaticity b* of transmitted light being 15 or less and a haze being 30% or greater. In this anti-glare film, the absolute value of the chromaticity b* of transmitted light may be 3 or less and a 60° gloss may be 25% or less. The anti-glare film includes a transparent substrate layer, and an anti-glare layer formed on at least one surface of the transparent substrate layer. The anti-glare layer may be a cured product of a curable composition including one or more types of a polymer component and one or more types of a curable resin precursor component, and in particular, at least two components selected from a polymer component and a curable resin precursor component can be phase separated through liquid phase spinodal decomposition. This anti-glare film has little yellowness and high anti-glare properties.
    Type: Application
    Filed: September 21, 2018
    Publication date: August 13, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Yoshitaka SUGAWARA, Masaki HAYASHI, Kensaku HIROSE
  • Publication number: 20200247965
    Abstract: Prepared is a film having at least one surface having a kurtosis (Rku) of greater than or equal to 2 and total height (Rt) of greater than or equal to 1?m. The dynamic friction coefficient of the surface may be less than or equal to 0.25, and the relative dynamic friction coefficient may be less than or equal to 0.3. The film includes a low-friction layer formed of a cured product of a curable composition including a curable resin, and the surface of the low-friction layer may have an Rku and an Rt within the range mentioned above. The curable resin may include at least one selected from the group consisting of a (meth)acrylic polymer having a polymerizable group, a urethane (meth)acrylate, and a silicone (meth)acrylate. The curable composition may further include a cellulose ester. The curable composition may be free of fine particles. The film can reduce the dynamic friction coefficient even if the surface of the film is formed of a wide range or materials.
    Type: Application
    Filed: October 11, 2018
    Publication date: August 6, 2020
    Applicant: Daicel Corporation
    Inventor: Yoshitaka SUGAWARA