Patents by Inventor Kensuke Katagiri

Kensuke Katagiri 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).

  • Patent number: 10983653
    Abstract: A conductive film includes a support, detection electrodes that are arranged on at least one main surface of the support, connection portions that are arranged on the main surface so as to be electrically connected to an external terminal, and lead-out wirings that are arranged on the main surface, electrically connected to the detection electrodes through one end portion thereof, and electrically connected to the connection portions through the other end portion thereof, in which the connection portions contain a binder and a metal component, and a content of the metal component in the connection portions that is determined by X-ray photoelectron spectroscopy is 0.5 to 10 at %.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: April 20, 2021
    Assignee: FUJIFILM Corporation
    Inventor: Kensuke Katagiri
  • Patent number: 10664118
    Abstract: A touch panel has a transparent substrate, a conductive film; a protective layer which is provided on the conductive film to protect the conductive film; and a display device which has a display unit. the conductive film includes: a transparent substrate; a detecting portion provided on at least one surface of the transparent substrate and is provided with a mesh pattern formed of thin metallic wires; and a peripheral wiring portion provided on at least one surface of the transparent substrate and is electrically connected to the detecting portion, a region where the detecting portion is provided is set as a first region and a region other than the first region is set as a second region in the transparent substrate, a wire width change region is present in at least a part of a boundary region including a boundary line between the first region and the second region.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: May 26, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Katsuyuki Nukui, Kensuke Katagiri
  • Publication number: 20200103996
    Abstract: A conductive film includes a support, detection electrodes that are arranged on at least one main surface of the support, connection portions that are arranged on the main surface so as to be electrically connected to an external terminal, and lead-out wirings that are arranged on the main surface, electrically connected to the detection electrodes through one end portion thereof, and electrically connected to the connection portions through the other end portion thereof, in which the connection portions contain a hinder and a metal component, and a content of the metal component in the connection portions that is determined by X-ray photoelectron spectroscopy is 0.5 to 10 at %.
    Type: Application
    Filed: December 3, 2019
    Publication date: April 2, 2020
    Applicant: FUJIFILM Corporation
    Inventor: Kensuke KATAGIRI
  • Patent number: 10604671
    Abstract: A method for producing a conductive film having a substrate and a conductive layer disposed on the substrate has a first step of forming a precursor layer on the substrate, the precursor layer including a metal component or its precursor, a water-insoluble polymer X having a cross-linking group, a water-insoluble polymer Y having a reactive group that reacts with the cross-linking group, and a water-soluble polymer Z different from polymer X and polymer Y; a second step of reacting the cross-linking group in the water-insoluble polymer X with the reactive group in the water-insoluble polymer Y; and a third step of forming the conductive layer by removing the water-soluble polymer Z.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: March 31, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Kensuke Katagiri, Shin Tajiri
  • Patent number: 10551978
    Abstract: A conductive sheet for a touch panel having an active area includes a first conductive layer that is formed of a first thin metal wire disposed in the active area; and a second conductive layer that is formed of a second thin metal wire disposed to overlap with the first conductive layer in the active area, in which a mesh pattern is formed of the first thin metal wire and the second thin metal wire in a case where the conductive sheet is seen from a direction perpendicular to the active area, the mesh pattern is a random pattern, an average line width of the first thin metal wire and the second thin metal wire is 0.5 ?m to 3.5 ?m, and an opening ratio of the mesh pattern is (92.3+X×1.6)% to 99.6%. X represents the average line width of the first and the second thin metal wire.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: February 4, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Daisuke Hara, Hiroshige Nakamura, Kensuke Katagiri, Masaya Nakayama
  • Patent number: 10528203
    Abstract: A method of designing a mesh pattern includes: a first step of tightly disposing a plurality of polygons having an arbitrary shape in an area to form a transparent active area; a second step of obtaining a circumcenter of each of the polygons; a third step of disposing one arbitrary point in each of the polygons to be positioned at a distance, which is less than ½ a radius of a circumscribed circle of the polygon, from the circumcenter; a fourth step of forming a pattern to form second cells by connecting two arbitrary points corresponding to two polygons that share each of sides of the polygons; and a fifth step of forming a pattern to form first cells using the polygons, in which the polygons having a random shape are disposed in the first step, and/or the arbitrary point is randomly disposed in the third step.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 7, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Daisuke Hara, Hiroshige Nakamura, Kensuke Katagiri, Masaya Nakayama
  • Patent number: 10332652
    Abstract: The conductive film is arranged on the support and contains a binder and a metal portion, in which a position at which the contour line reaches the metal portion included in the thin conductive wire is set as an upper end position, and an average area ratio VA of the metal portion in a region ranging from the upper end position to 100 nm toward the support side is 1% or more and less than 50%, and a position at which the contour line reaches the thin conductive wire does not include the metal portion is set to a lower end position, and an average area ratio VM1 of the metal portion in a region ranging from a middle position between the upper end position and the lower end position to 50 nm toward the support side and to 50 nm toward the surface X side is 50% or more.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: June 25, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Kensuke Katagiri, Shin Tajiri, Toshinari Fujii
  • Patent number: 10303015
    Abstract: External connection terminals in a conductive film and circuit-side terminals in a flexible circuit are respectively arranged in a first direction and are disposed through an anisotropic conductive membrane so as to at least partially overlap each other, the conductive film has detection electrodes and lead wires respectively connecting the detection electrodes to the external connection terminals, at least two external connection terminals have connection portions with the lead wires disposed at different locations, and, in each external connection terminal, an overlapping region between the circuit-side terminal and the anisotropic conductive membrane has ends in a second direction orthogonal to the first direction, and a width W1 of a first end in the first direction being located on a connection portion side between the external connection terminal and the lead wire is smaller than a width W2 in the first direction of the external connection terminal overlapping the first end.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: May 28, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Shin Tajiri, Kensuke Katagiri
  • Publication number: 20190155424
    Abstract: A touch panel has a transparent substrate, a conductive film; a protective layer which is provided on the conductive film to protect the conductive film; and a display device which has a display unit. the conductive film includes: a transparent substrate; a detecting portion provided on at least one surface of the transparent substrate and is provided with a mesh pattern formed of thin metallic wires; and a peripheral wiring portion provided on at least one surface of the transparent substrate and is electrically connected to the detecting portion, a region where the detecting portion is provided is set as a first region and a region other than the first region is set as a second region in the transparent substrate, a wire width change region is present in at least a part of a boundary region including a boundary line between the first region and the second region.
    Type: Application
    Filed: January 28, 2019
    Publication date: May 23, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Katsuyuki NUKUI, Kensuke KATAGIRI
  • Publication number: 20180155568
    Abstract: A method for producing a conductive film having a substrate and a conductive layer disposed on the substrate has a first step of forming a precursor layer on the substrate, the precursor layer including a metal component or its precursor, a water-insoluble polymer X having a cross-linking group, a water-insoluble polymer Y having a reactive group that reacts with the cross-linking group, and a water-soluble polymer Z different from polymer X and polymer Y; a second step of reacting the cross-linking group in the water-insoluble polymer X with the reactive group in the water-insoluble polymer Y; and a third step of forming the conductive layer by removing the water-soluble polymer Z.
    Type: Application
    Filed: February 5, 2018
    Publication date: June 7, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Kensuke KATAGIRI, Shin TAJIRI
  • Publication number: 20180113347
    Abstract: A conductive sheet for a touch panel having an active area includes a first conductive layer that is formed of a first thin metal wire disposed in the active area; and a second conductive layer that is formed of a second thin metal wire disposed to overlap with the first conductive layer in the active area, in which a mesh pattern is formed of the first thin metal wire and the second thin metal wire in a case where the conductive sheet is seen from a direction perpendicular to the active area, the mesh pattern is a random pattern, an average line width of the first thin metal wire and the second thin metal wire is 0.5 ?m to 3.5 ?m, and an opening ratio of the mesh pattern is (92.3+X×1.6)% to 99.6%. X represents the average line width of the first and the second thin metal wire.
    Type: Application
    Filed: December 21, 2017
    Publication date: April 26, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Daisuke HARA, Hiroshige NAKAMURA, Kensuke KATAGIRI, Masaya NAKAYAMA
  • Publication number: 20180107304
    Abstract: A plurality of regular triangles T having one side length L0 are tightly disposed (A). An apex A of each of the regular triangles T is moved using a random number in a movement tolerance R range to create a new apex B, and the new apexes B are connected to form a plurality of triangles having a random shape (B, C, D). A circumcenter E of each of the triangles is obtained (E). Arbitrary points F at distances, which are less than ½ of radii of circumscribed circles of the triangles, from the circumcenters E are connected to form second cells C2 of a second mesh pattern M2 (F, G, H, I). At least portions of triangles adjacent each other among the triangles are merged to form polygons, and first cells C1 of a first mesh pattern M1 including the triangles and the polygons are formed (J).
    Type: Application
    Filed: December 5, 2017
    Publication date: April 19, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Daisuke Hara, Hiroshige Nakamura, Kensuke Katagiri, Masaya Nakayama
  • Publication number: 20170372816
    Abstract: The conductive film is arranged on the support and contains a binder and a metal portion, in which a position at which the contour line reaches the metal portion included in the thin conductive wire is set as an upper end position, and an average area ratio VA of the metal portion in a region ranging from the upper end position to 100 nm toward the support side is 1% or more and less than 50%, and a position at which the contour line reaches the thin conductive wire does not include the metal portion is set to a lower end position, and an average area ratio VM1 of the metal portion in a region ranging from a middle position between the upper end position and the lower end position to 50 nm toward the support side and to 50 nm toward the surface X side is 50% or more.
    Type: Application
    Filed: September 4, 2017
    Publication date: December 28, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Kensuke KATAGIRI, Shin TAJIRI, Toshinari FUJII
  • Publication number: 20170351362
    Abstract: The touch panel includes an image display device, an adhesive layer formed by curing an ultraviolet-curable adhesive, a touch panel sensor, and a protective substrate in this order, the touch panel sensor includes any one polymer film of a cyclic olefin polymer film and a cyclic olefin copolymer film, an ultraviolet absorption layer is provided between the polymer film and the protective substrate, a transmittance of the ultraviolet absorption layer in a wavelength range of 200 to 340 nm is 5% or less, a transmittance of the ultraviolet absorption layer at a wavelength of 400 nm is 86% or more, and a transmittance of the ultraviolet absorption layer in a wavelength range of 400 to 800 nm is in a range of ±3% or less of the transmittance at a wavelength of 400 nm.
    Type: Application
    Filed: August 25, 2017
    Publication date: December 7, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Katsuyuki NUKUI, Kensuke KATAGIRI, Shinya OGIKUBO, Toshinari FUJII, Shin TAJIRI
  • Publication number: 20170329170
    Abstract: External connection terminals in a conductive film and circuit-side terminals in a flexible circuit are respectively arranged in a first direction and are disposed through an anisotropic conductive membrane so as to at least partially overlap each other, the conductive film has detection electrodes and lead wires respectively connecting the detection electrodes to the external connection terminals, at least two external connection terminals have connection portions with the lead wires disposed at different locations, and, in each external connection terminal, an overlapping region between the circuit-side terminal and the anisotropic conductive membrane has ends in a second direction orthogonal to the first direction, and a width W1 of a first end in the first direction being located on a connection portion side between the external connection terminal and the lead wire is smaller than a width W2 in the first direction of the external connection terminal overlapping the first end.
    Type: Application
    Filed: July 31, 2017
    Publication date: November 16, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Shin TAJIRI, Kensuke KATAGIRI
  • Patent number: 9820377
    Abstract: A transparent conductive film comprises a transparent substrate and a metal wiring portion formed thereon. A thin metal wire contained in an electrode portion in the metal wiring portion has a surface shape satisfying the condition of Ra2/Sm>0.01 ?m and has a metal volume content of 35% or more. Ra represents an arithmetic average roughness in micrometers and is equal to or smaller than the thickness of a metal wiring located in a position where the surface roughness is measured. Sm represents an average distance between convex portions and is 0.01 ?m or more.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: November 14, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Kensuke Katagiri, Shin Tajiri, Akihiko Hase
  • Patent number: 9820380
    Abstract: A transparent conductive film comprises a transparent substrate and a metal wiring portion formed thereon. A thin metal wire contained in an electrode portion in the metal wiring portion has a surface shape satisfying the condition of Ra2/Sm>0.01 ?m and has a metal volume content of 35% or more. Ra represents an arithmetic average roughness in micrometers and is equal to or smaller than the thickness of a metal wiring located in a position where the surface roughness is measured. Sm represents an average distance between convex portions and is 0.01 ?m or more.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: November 14, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Kensuke Katagiri, Shin Tajiri, Akihiko Hase
  • Publication number: 20170171972
    Abstract: A transparent conductive film comprises a transparent substrate and a metal wiring portion formed thereon. A thin metal wire contained in an electrode portion in the metal wiring portion has a surface shape satisfying the condition of Ra2/Sm>0.01 ?m and has a metal volume content of 35% or more. Ra represents an arithmetic average roughness in micrometers and is equal to or smaller than the thickness of a metal wiring located in a position where the surface roughness is measured. Sm represents an average distance between convex portions and is 0.01 ?m or more.
    Type: Application
    Filed: February 27, 2017
    Publication date: June 15, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Kensuke KATAGIRI, Shin TAJIRI, Akihiko HASE
  • Patent number: 9411080
    Abstract: A method for manufacturing of a conductive member include forming one of a conductive layer including metal nanowires or a light-scattering layer including insulating light-scattering fine particles on a substrate in a pattern shape; and forming the other of the conductive layer including metal nanowires or the light-scattering layer including insulating light-scattering fine particles on a space of the substrate wherein the one of the conductive layer or the light-scattering layer is not formed.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: August 9, 2016
    Assignee: FUJIFILM Corporation
    Inventor: Kensuke Katagiri
  • Patent number: 9405422
    Abstract: The conductive sheet includes a support and a conductive portion which is disposed on the support and composed of thin conductive wires containing metal silver and gelatin, in which gelatin is substantially not contained between the thin conductive wires on the support, and a volume ratio (A/B) of a volume A of the metal silver to a volume B of the gelatin in the thin conductive wires is 0.3 to 10.0. In the conductive sheet, the occurrence of ion migration between thin conductive wires is further inhibited. A manufacturing method of the conductive sheet and a touch panel including the conductive sheet are also provided.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: August 2, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Shin Tajiri, Kensuke Katagiri, Toshinari Fujii