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).
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Patent number: 10983653Abstract: 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: GrantFiled: December 3, 2019Date of Patent: April 20, 2021Assignee: FUJIFILM CorporationInventor: Kensuke Katagiri
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Patent number: 10664118Abstract: 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: GrantFiled: January 28, 2019Date of Patent: May 26, 2020Assignee: FUJIFILM CorporationInventors: Katsuyuki Nukui, Kensuke Katagiri
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Publication number: 20200103996Abstract: 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: ApplicationFiled: December 3, 2019Publication date: April 2, 2020Applicant: FUJIFILM CorporationInventor: Kensuke KATAGIRI
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Patent number: 10604671Abstract: 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: GrantFiled: February 5, 2018Date of Patent: March 31, 2020Assignee: FUJIFILM CorporationInventors: Kensuke Katagiri, Shin Tajiri
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Patent number: 10551978Abstract: 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: GrantFiled: December 21, 2017Date of Patent: February 4, 2020Assignee: FUJIFILM CorporationInventors: Daisuke Hara, Hiroshige Nakamura, Kensuke Katagiri, Masaya Nakayama
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Patent number: 10528203Abstract: 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: GrantFiled: December 5, 2017Date of Patent: January 7, 2020Assignee: FUJIFILM CorporationInventors: Daisuke Hara, Hiroshige Nakamura, Kensuke Katagiri, Masaya Nakayama
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Patent number: 10332652Abstract: 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: GrantFiled: September 4, 2017Date of Patent: June 25, 2019Assignee: FUJIFILM CorporationInventors: Kensuke Katagiri, Shin Tajiri, Toshinari Fujii
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Patent number: 10303015Abstract: 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: GrantFiled: July 31, 2017Date of Patent: May 28, 2019Assignee: FUJIFILM CorporationInventors: Shin Tajiri, Kensuke Katagiri
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Publication number: 20190155424Abstract: 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: ApplicationFiled: January 28, 2019Publication date: May 23, 2019Applicant: FUJIFILM CorporationInventors: Katsuyuki NUKUI, Kensuke KATAGIRI
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Publication number: 20180155568Abstract: 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: ApplicationFiled: February 5, 2018Publication date: June 7, 2018Applicant: FUJIFILM CorporationInventors: Kensuke KATAGIRI, Shin TAJIRI
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Publication number: 20180113347Abstract: 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: ApplicationFiled: December 21, 2017Publication date: April 26, 2018Applicant: FUJIFILM CorporationInventors: Daisuke HARA, Hiroshige NAKAMURA, Kensuke KATAGIRI, Masaya NAKAYAMA
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Publication number: 20180107304Abstract: 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: ApplicationFiled: December 5, 2017Publication date: April 19, 2018Applicant: FUJIFILM CorporationInventors: Daisuke Hara, Hiroshige Nakamura, Kensuke Katagiri, Masaya Nakayama
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Publication number: 20170372816Abstract: 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: ApplicationFiled: September 4, 2017Publication date: December 28, 2017Applicant: FUJIFILM CorporationInventors: Kensuke KATAGIRI, Shin TAJIRI, Toshinari FUJII
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Publication number: 20170351362Abstract: 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: ApplicationFiled: August 25, 2017Publication date: December 7, 2017Applicant: FUJIFILM CorporationInventors: Katsuyuki NUKUI, Kensuke KATAGIRI, Shinya OGIKUBO, Toshinari FUJII, Shin TAJIRI
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Publication number: 20170329170Abstract: 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: ApplicationFiled: July 31, 2017Publication date: November 16, 2017Applicant: FUJIFILM CorporationInventors: Shin TAJIRI, Kensuke KATAGIRI
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Patent number: 9820377Abstract: 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: GrantFiled: November 20, 2015Date of Patent: November 14, 2017Assignee: FUJIFILM CorporationInventors: Kensuke Katagiri, Shin Tajiri, Akihiko Hase
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Patent number: 9820380Abstract: 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: GrantFiled: February 27, 2017Date of Patent: November 14, 2017Assignee: FUJIFILM CorporationInventors: Kensuke Katagiri, Shin Tajiri, Akihiko Hase
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Publication number: 20170171972Abstract: 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: ApplicationFiled: February 27, 2017Publication date: June 15, 2017Applicant: FUJIFILM CorporationInventors: Kensuke KATAGIRI, Shin TAJIRI, Akihiko HASE
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Patent number: 9411080Abstract: 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: GrantFiled: September 22, 2014Date of Patent: August 9, 2016Assignee: FUJIFILM CorporationInventor: Kensuke Katagiri
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Patent number: 9405422Abstract: 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: GrantFiled: September 24, 2015Date of Patent: August 2, 2016Assignee: FUJIFILM CorporationInventors: Shin Tajiri, Kensuke Katagiri, Toshinari Fujii