Patents by Inventor Takumi Sano

Takumi Sano 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: 20240147611
    Abstract: According to an aspect, a stretchable device includes: a resin base member including a plurality of island-shaped portions spaced apart from each other and a plurality of strip portions that couple the island-shaped portions; and a plurality of first gauge lines and at least one second gauge line having a gauge factor higher than that of the first gauge lines, the first gauge lines and the second gauge line being provided to each of the strip portions. The strip portion of the resin base member has a plurality of curved portions and a linear portion that couples the curved portions. The first gauge lines and the second gauge line each extend along an extending direction of the strip portion and are coupled along the extending direction of the strip portion. The first gauge lines are provided to the curved portions. The second gauge line is provided to the linear portion.
    Type: Application
    Filed: October 30, 2023
    Publication date: May 2, 2024
    Applicant: Japan Display Inc.
    Inventors: Takumi SANO, Masatomo HISHINUMA
  • Publication number: 20240147610
    Abstract: According to an aspect, a stretchable device includes: a resin base member including a plurality of island-shaped portions spaced apart from each other and a plurality of strip portions that couple the island-shaped portions; and a first gauge line and a second gauge line having a gauge factor higher than a gauge factor of the first gauge line, the first gauge line and the second gauge line being provided to each of the strip portions. The first gauge line and the second gauge line each extend along an extending direction of the strip portion and are coupled along the extending direction of the strip portion. The length of the second gauge line along the extending direction of the strip portion is shorter than the length of the first gauge line along the extending direction of the strip portion.
    Type: Application
    Filed: October 23, 2023
    Publication date: May 2, 2024
    Applicant: Japan Display Inc.
    Inventors: Takumi SANO, Masatomo HISHINUMA
  • Publication number: 20240147615
    Abstract: According to one embodiment, an electronic device includes an elastic insulating base including a plurality of island-shaped portions and a plurality of strip-like portions each connecting respective adjacent pair of the plurality of island-shaped portions, electrical element located on each of the plurality of island-shaped portions and a plurality of wiring lines located in the plurality of strip-like portions respectively and each electrically connected to the electrical element. Each of the plurality of strip-like portions including a curved portion, and a ratio (R/W) of a radius (R) of curvature in the curved portions to the width W in the curved portion is in a range of 10?R/W?20.
    Type: Application
    Filed: October 10, 2023
    Publication date: May 2, 2024
    Applicant: Japan Display Inc.
    Inventors: Takumi SANO, Akio MURAYAMA, Shinichiro OKA, Masatomo HISHINUMA
  • Publication number: 20240121893
    Abstract: According to an aspect, a stretchable device includes: a resin base member; and a signal line and a strain gauge stacked on the resin base member. The resin base member includes: a plurality of bodies disposed separately from each other; and a plurality of hinges that couple the bodies while meandering. The hinges each include: a plurality of bends that bend and are disposed between the bodies; and a base that linearly extends to couple one of the bodies to a corresponding one of the bends. The signal line includes: a bend signal line stacked on the bends; and a base signal line stacked on the base. The base signal line has an occupied area per unit length in a length direction of the signal line larger than the bend signal line when viewed in a stacking direction in which the signal line is stacked on the resin base member.
    Type: Application
    Filed: October 4, 2023
    Publication date: April 11, 2024
    Applicant: Japan Display Inc.
    Inventors: Takumi SANO, Masatomo HISHINUMA, Yasushi TOMIOKA, Akio MURAYAMA, Shinichiro OKA
  • Publication number: 20240121892
    Abstract: A stretchable device includes a resin base member, a signal line, and a strain gauge. The resin base member includes: bodies disposed separately from each other; and hinges that couple the bodies while meandering. Each hinge includes: a base and bends. The bends include a first bend coupled to the base. The first bend includes a first inner peripheral portion and a first outer peripheral portion with respect to a center in a width direction orthogonal to a length direction in which the hinge extends. The base includes an inner peripheral coupling portion coupled to the first inner peripheral portion and an outer peripheral coupling portion coupled to the first outer peripheral portion with respect to the center in the width direction. The signal line is provided to the hinge. An imaginary center line passing through the center of the signal line overlaps the outer peripheral coupling portion.
    Type: Application
    Filed: September 22, 2023
    Publication date: April 11, 2024
    Applicant: Japan Display Inc.
    Inventors: Takumi SANO, Masatomo HISHINUMA
  • Patent number: 11956893
    Abstract: According to one embodiment, a flexible substrate includes an insulating base material including an island-shaped portion, a first portion having a band shape and connected to the island-shaped portion, and a second portion having a band shape and connected to the island-shaped portion, and a wiring layer provided on the insulating base material. The first portion includes a first curved portion and a first straight portion connecting the island-shaped portion and the first curved portion, and the second portion includes a second curved portion and a second straight portion connecting the island-shaped portion and the second curved portion.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: April 9, 2024
    Assignee: Japan Display Inc.
    Inventor: Takumi Sano
  • Publication number: 20240114616
    Abstract: According to an aspect, a stretchable device includes: a resin base member; and a strain gauge, a signal line, and an output line stacked on the resin base member. The resin base member includes: a plurality of bodies disposed separately from each other; and a plurality of hinges that couple the bodies adjacently disposed while meandering in an intersecting direction intersecting an imaginary line that couples the bodies adjacently disposed. The hinges include a first hinge and a second hinge that couple the bodies adjacently disposed. A meander length of the second hinge in the intersecting direction is longer than a meander length of the first hinge in the intersecting direction. The strain gauge is provided to the first hinge. The signal line and the output line are provided to the second hinge.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 4, 2024
    Applicant: Japan Display Inc.
    Inventors: Yosuke HYODO, Takumi SANO, Hiroumi KINJO, Masatomo HISHINUMA
  • Patent number: 11930591
    Abstract: According to one embodiment, a flexible substrate includes a support plate including a first surface, a line portion located on the first surface and including a first side surface and a second side surface on an opposite side to the first side surface and a protective member which covers the line portion, in contact with the first surface. The line portion includes a flexible insulating base located on the first surface and a wiring layer disposed on the insulating base, the protective member is separated from at least a part of the first side surface via an air layer and from at least a part of the second side surface via an air layer, and the air layers extend along the line portion.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: March 12, 2024
    Assignee: Japan Display Inc.
    Inventor: Takumi Sano
  • Patent number: 11913851
    Abstract: A pressure sensor includes an insulating base material, a switching element disposed on the insulating base material, a piezoelectric layer disposed on the insulating base material and the switching element and an underlying layer located between the piezoelectric layer and the insulating base material, and the modulus of elasticity of the underlying layer is greater than the modulus of elasticity of the piezoelectric layer.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: February 27, 2024
    Assignee: Japan Display Inc.
    Inventors: Takumi Sano, Shinichiro Oka
  • Publication number: 20240019970
    Abstract: A stretchable array substrate includes: a resin base member and an array layer. The resin base member includes bodies disposed apart from each other and hinges that couple the bodies. The array layer includes electrical wiring lines stacked on the hinges. The hinges each includes a linear portion and a bend that meanders and couples second ends of two of the linear portions. The electrical wiring lines include: a first electrical line stacked on the linear portion; and a second electrical line stacked on the bend. The first electrical line is provided with: a joint stacked on the first end of the linear portion; and a thin wiring portion closer to the second end of the linear portion than the joint and having a length in a width direction intersecting a longitudinal direction of the first electrical line smaller than a length in the width direction of the joint.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 18, 2024
    Applicant: Japan Display Inc.
    Inventor: Takumi SANO
  • Publication number: 20240019966
    Abstract: According to an aspect, a touch panel includes, in sequence: a stretchable array substrate, a touch detection electrode; and a resin plate. The resin plate has: a facing surface facing the touch detection electrode; and a detection surface facing opposite to the facing surface. The facing surface or the detection surface has a recessed surface. The recessed surface is provided with a high permittivity layer having permittivity higher than permittivity of the resin plate. The touch detection electrode and the high permittivity layer overlap when viewed in a stacking direction in which the stretchable array substrate, the touch detection electrode, and the resin plate are stacked.
    Type: Application
    Filed: July 11, 2023
    Publication date: January 18, 2024
    Applicant: Japan Display Inc.
    Inventor: Takumi SANO
  • Publication number: 20240019954
    Abstract: According to one embodiment, an electronic device includes a first substrate, a second substrate opposing the first substrate, a pressure sensitive layer disposed between the first substrate and the second substrate, and an elastic member that covers the first substrate, the second substrate and the pressure sensitive layer. The first and second substrates include a first and second insulating substrates formed into a mesh-like shape. The elastic member includes slits that are formed around a first island-shaped portion of the first insulating substrate and a second island-shaped portion of the second insulating substrate. The slits open when the elastic member is expanded.
    Type: Application
    Filed: July 13, 2023
    Publication date: January 18, 2024
    Applicant: Japan Display Inc.
    Inventor: Takumi SANO
  • Publication number: 20240019967
    Abstract: According to an aspect, a touch panel includes, in sequence: a stretchable array substrate; a detection electrode; and a resin plate. The resin plate has a detection surface facing opposite to the detection electrode. The detection surface has a recessed surface. The detection electrode and the recessed surface overlap when viewed in a stacking direction in which the stretchable array substrate, the detection electrode, and the resin plate are stacked.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 18, 2024
    Applicant: Japan Display Inc.
    Inventor: Takumi SANO
  • Publication number: 20230378195
    Abstract: The purpose of the invention is to realize a flexible electronic device of high reliability. The present invention takes a following structure to realize the purpose. An electronic device including: a plurality of element areas, arrayed in a first direction with a first distance, and arrayed in a second direction with a second distance, the plurality of element areas being connected with each other in the first direction by a first organic insulating film, which meanderingly extends in the first direction, graphene being formed on a surface of the first organic insulating film to form a first wiring, the plurality of element areas being connected with each other in the second direction by a second organic insulating film, which meanderingly extends in the second direction, graphene being formed on a surface of the second organic insulating film to form a second wiring.
    Type: Application
    Filed: April 18, 2023
    Publication date: November 23, 2023
    Applicant: Japan Display Inc.
    Inventor: Takumi SANO
  • Publication number: 20230343660
    Abstract: Purpose is to realize a flexible electronic device of high reliability. The present invention takes a following structure to realize the purpose. An electronic device including: a plurality of element areas, famed from a first organic insulating film, and formed in island shape arranged in a first direction with a first space and arranged in a second direction with a second space, in which an element, a first wiring extending in the first direction and a second wiring extending in the second direction are formed in each of the plurality of element areas, the first wirings famed in the plurality of the element areas are connected with each other by a first wire bonding in the first direction, and the second wirings famed in the plurality of the element areas are connected with each other by a second wire bonding in the second direction.
    Type: Application
    Filed: April 24, 2023
    Publication date: October 26, 2023
    Inventor: Takumi SANO
  • Publication number: 20230345644
    Abstract: According to one embodiment, a method of manufacturing a flexible substrate, includes forming a release layer on a glass substrate, forming an insulating base, forming a plurality of insulating layers, wiring lines and electrical elements, asking the release layer, the insulating base and the plurality of insulating layers from above to the glass substrate via a mask, forming an upper resin layer, removing the glass substrate and the release layer by peeling off an interface between the release layer and the insulating base and forming a lower resin layer so as to be in contact with a lower surface of the insulating base and a lower surface of the upper resin layer.
    Type: Application
    Filed: April 19, 2023
    Publication date: October 26, 2023
    Inventor: Takumi SANO
  • Publication number: 20230345747
    Abstract: According to one embodiment, a flexible substrate including an insulating base including a plurality of first strip portions, a plurality of second strip portions, and a plurality of island-shaped portions located at the intersections of the first strip portions and the second strip portions, a plurality of electric elements each including a lower electrode, an upper electrode, and an active layer located between the lower electrode and the upper electrode, and overlapping with the island-shaped portions, and a first stress relaxation layer located between the lower electrode and the active layer, wherein the first stress relaxation layer is formed of a conductive resin material.
    Type: Application
    Filed: April 14, 2023
    Publication date: October 26, 2023
    Inventor: Takumi SANO
  • Publication number: 20230326865
    Abstract: According to one embodiment, a flexible substrate including an insulating base including first and second strip portions, and island-shaped portions, electrical elements, scanning lines, signal lines, a first inorganic insulating film covering the scanning lines, and a second inorganic insulating film covering the signal lines, each of the scanning lines includes a first side edge and a second side edge, the first inorganic insulating film covers the first side edge and the second side edge, each of the signal lines includes a third side edge and a fourth side edge, and the second inorganic insulating film covers the third side edge and the fourth side edge.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 12, 2023
    Inventor: Takumi SANO
  • Patent number: 11765821
    Abstract: According to one embodiment, a flexible substrate includes flexible insulating base material, conductive lines, a support body and a coating layer. The conductive lines are provided on the insulating base material. The support body supports the insulating base material. The coating layer covers the insulating base material and the support body. The conductive lines include scanning lines and signal lines. The scanning lines extend in a first direction and are arranged side by side in a second direction intersecting the first direction. The signal lines extend in the second direction and are arranged side by side in the first direction. The support body and the coating layer have a through hole in a region enclosed by two adjacent scanning lines and two adjacent signal lines.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: September 19, 2023
    Assignee: Japan Display Inc.
    Inventor: Takumi Sano
  • Publication number: 20230139469
    Abstract: According to one embodiment, an electronic device includes an insulating base having elasticity, a plurality of lines provided on the insulating base, and a plurality of electric elements connected to the lines. The insulating base includes island-shaped portions in which the electric elements are located, and band-like portions in which the lines are provided and which connect the adjacent island-shaped portions. The band-like portions includes a curved portion which meanders, and a straight line portion which connects the curved portion and the island-shaped portion. The curved portion includes a first curved portion, a second curved portion and a third curved portion. A width of the second curved portion is less than a width of the third curved portion.
    Type: Application
    Filed: October 25, 2022
    Publication date: May 4, 2023
    Inventor: Takumi SANO