Patents by Inventor Shinichiro Oka

Shinichiro Oka 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: 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: 20240128652
    Abstract: According to one embodiment, an intelligent reflecting surface includes a first substrate, a second substrate, a sealing material, a liquid crystal layer, and a radar absorbent material. The first substrate includes a first basement located in a first area and a second area, and a plurality of patch electrodes. The second substrate includes a second basement and a common electrode. The radar absorbent material is located in the second area.
    Type: Application
    Filed: December 7, 2023
    Publication date: April 18, 2024
    Applicant: Japan Display Inc.
    Inventors: Mitsutaka OKITA, Shinichiro OKA, Shigesumi ARAKI, Daiichi SUZUKI
  • 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: 20240106132
    Abstract: According to one embodiment, an intelligent reflecting surface includes a first substrate, a second substrate, a sealing material, a liquid crystal layer, and a first transfer. The first substrate includes a plurality of patch electrodes, and a first power supply pad. The second substrate includes a common electrode, and a first power receiving pad electrically connected to the common electrode. The first transfer is in contact with the first power supply pad and the first power receiving pad. An uppermost layer of the first power supply pad, which is in contact with the first transfer, is formed of a transparent conductive material. The first power receiving pad is formed of a transparent conductive material. The common electrode is formed of metal.
    Type: Application
    Filed: December 6, 2023
    Publication date: March 28, 2024
    Applicant: Japan Display Inc.
    Inventors: Mitsutaka OKITA, Shinichiro OKA
  • Publication number: 20240103322
    Abstract: A phase modulating device includes a first electrode; a second electrode; and a liquid crystal layer including a plurality of liquid crystal molecules and arranged between the first electrode and the second electrode, wherein a height of the liquid crystal layer from the first electrode toward the second electrode is 30 ?m or more and 50 ?m or less, and in a planar view of a first plane including the first electrode, the liquid crystal layer and the second electrode, the first plane intersecting with an in-plane direction of the first electrode, at least two liquid crystal molecules arranged adjacent to each other in a direction parallel to the in-plane direction of the first electrode and oriented differently from each other are included.
    Type: Application
    Filed: December 6, 2023
    Publication date: March 28, 2024
    Applicant: Japan Display Inc.
    Inventors: Shigesumi ARAKI, Mitsutaka OKITA, Daiichi SUZUKI, Shinichiro OKA
  • Publication number: 20240085746
    Abstract: An intelligent reflecting surface includes a substrate having a first surface including a first side and a reflective region including a plurality of reflective elements arranged on the first surface, a plurality of reflective elements separated from each other by a first interval and arranged at a first pitch in a first direction and a second direction orthogonal to the first direction. Twice a distance from the first side to a first reflective element adjacent to the first side among the plurality of reflective elements is a sum of an integral multiple of the first pitch and the first interval.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 14, 2024
    Applicant: Japan Display Inc.
    Inventors: Shigesumi ARAKI, Mitsutaka OKITA, Daiichi SUZUKI, Shinichiro OKA
  • 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: 20240047890
    Abstract: According to one embodiment, an intelligent reflecting surface includes a plurality of patch areas including a plurality of square patch electrodes, an electrode shape formed by the patch electrode, a first connection electrode, a second connection electrode, a third connection electrode, and a fourth connection electrode included in each of the plurality of patch areas has rotational symmetry having a point inside each of the plurality of patch areas as a center of rotation, and a first patch area, a second patch, a third patch area, and a fourth patch area have an intersection of the first patch area, the second patch area, the third patch area, and the fourth patch area as a whole as a center of rotation.
    Type: Application
    Filed: September 29, 2023
    Publication date: February 8, 2024
    Applicant: Japan Display Inc.
    Inventors: Shinichiro OKA, Mitsutaka OKITA, Daiichi SUZUKI, Shigesumi ARAKI, Yoshiaki AMANO, Hiromi MATSUNO
  • Publication number: 20240045273
    Abstract: According to one embodiment, a liquid crystal optical element includes a substrate, a first alignment control layer disposed on the substrate and comprising projections arranged at a predetermined pitch, and a first liquid crystal layer disposed on the first alignment control layer. The first liquid crystal layer comprises liquid crystal molecules which are aligned such that major axes of the liquid crystal molecules extend along the projections, respectively, and cured in a state where alignment directions of the liquid crystal molecules are fixed. The first alignment control layer is formed of a crosslinkable liquid crystal polymer.
    Type: Application
    Filed: August 1, 2023
    Publication date: February 8, 2024
    Applicant: Japan Display Inc.
    Inventors: Yasushi TOMIOKA, Shinichiro OKA, Koichi IGETA, Junji KOBASHI, Ayaka HIGUCHI
  • Publication number: 20240039156
    Abstract: According to one embodiment, an intelligent reflecting surface includes a first substrate, a second substrate, and a first dielectric layer sandwiched between the first substrate and the second substrate, the first substrate includes a first base, a plurality of first patch electrodes, a plurality of second patch electrodes, which are provided between the first base and the plurality of first patch electrodes, and a second dielectric layer provided between the plurality of first patch electrodes and the plurality of second patch electrodes, the first dielectric layer has a first dielectric constant, and the second dielectric layer has a second dielectric constant.
    Type: Application
    Filed: September 29, 2023
    Publication date: February 1, 2024
    Applicant: Japan Display Inc.
    Inventors: Daiichi SUZUKI, Shinichiro OKA, Shigesumi ARAKI, Mitsutaka OKITA, Yoshiaki AMANO, Hiromi MATSUNO
  • Publication number: 20240036430
    Abstract: According to one embodiment, a method of manufacturing a liquid crystal element, includes forming an alignment layer on a support, forming a cholesteric liquid crystal layer containing a plasticizer and having elasticity on the alignment layer, adhering a flexible substrate to the cholesteric liquid crystal layer via a first adhesive layer, peeling the cholesteric liquid crystal layer adhered to the flexible substrate, off from the support and the alignment layer, adhering the cholesteric liquid crystal layer to a rigid substrate via a second adhesive layer and removing the flexible substrate and the first adhesive layer.
    Type: Application
    Filed: July 31, 2023
    Publication date: February 1, 2024
    Applicant: Japan Display Inc.
    Inventors: Hiroumi KINJO, Koichi IGETA, Shinichiro OKA
  • Publication number: 20240030384
    Abstract: A laminated structure includes a substrate, and a gallium nitride film on the substrate. Further, a laminated structure includes a substrate, an alignment layer having a c-axis orientation or a (111) orientation of a face-centered cubic structure, over the substrate, and a gallium nitride film on the alignment film. Furthermore, a laminated structure includes a substrate, a protective layer on the substrate, an alignment layer having a c-axis orientation or a (111) orientation of a face-centered cubic structure, over the protective layer, and a gallium nitride film on the alignment film. A surface arithmetic mean roughness (Ra) of a surface of the substrate is less than 0.33 nm.
    Type: Application
    Filed: September 19, 2023
    Publication date: January 25, 2024
    Applicant: Japan Display Inc.
    Inventors: Masumi NISHIMURA, Shinichiro OKA, Hiroumi KINJO, Hayata AOKI
  • Publication number: 20240027826
    Abstract: According to one embodiment, an intelligent reflecting surface includes a first substrate including a plurality of patch electrodes spaced apart and arranged in a matrix along each of an X-axis and a Y-axis orthogonal to each other, a second substrate including a common electrode opposed to the plurality of patch electrodes in a direction parallel to a Z-axis orthogonal to each of the X-axis and the Y-axis, and a liquid crystal layer held between the first substrate and the second substrate and opposed to the plurality of patch electrodes. Each of the patch electrodes includes a first aperture.
    Type: Application
    Filed: September 29, 2023
    Publication date: January 25, 2024
    Applicant: Japan Display Inc.
    Inventors: Mitsutaka OKITA, Shinichiro OKA, Shigesumi ARAKI, Daiichi SUZUKI, Yoshiaki AMANO, Hiromi MATSUNO
  • Publication number: 20240021747
    Abstract: According to one embodiment, a photovoltaic cell device includes a transparent substrate including a first side surface, a second side surface, and a third side surface, a first liquid crystal layer, a second liquid crystal layer, a first photovoltaic cell opposed to the first side surface, a second photovoltaic cell opposed to the second side surface, and a third photovoltaic cell opposed to the third side surface. The first liquid crystal layer comprises a first reflective surface. The second liquid crystal layer comprises a second reflective surface. In plan view, an angle formed by a normal of the first reflective surface and a normal of the second reflective surface is greater than 0° but less than 180°.
    Type: Application
    Filed: July 11, 2023
    Publication date: January 18, 2024
    Applicant: Japan Display Inc.
    Inventors: Yasushi TOMIOKA, Junji KOBASHI, Shinichiro OKA
  • Patent number: 11874570
    Abstract: According to one embodiment, a display device includes a first display panel, a second display panel and an adhesive layer which adheres the first and second display panels. The first display panel includes a first scanning line, a first signal line, a first pixel electrically connected to the first scanning line and the first signal line, and the first pixel includes a first pixel electrode including first line portions extending parallel to the first signal line. The second display panel includes a second scanning line, a second signal line, and a second pixel electrically connected to the second scanning line and the second signal line, and the second pixel includes a second pixel electrode including second line portions intersecting the second signal line in plan view.
    Type: Grant
    Filed: March 16, 2023
    Date of Patent: January 16, 2024
    Assignee: Japan Display Inc.
    Inventors: Yosuke Hyodo, Shinichiro Oka, Hirofumi Ohira
  • Publication number: 20240015993
    Abstract: According to one embodiment, a photovoltaic cell device includes a transparent substrate including a first main surface and a second main surface opposed to the first main surface, a liquid crystal layer disposed on the second main surface side of the transparent substrate and including a cholesteric liquid crystal including liquid crystal molecules, and photovoltaic cells disposed on at least one of the first main surface side and the second main surface side of the transparent substrate, each formed into a strip shape, and arranged with a predetermined gap between the photovoltaic cells.
    Type: Application
    Filed: July 3, 2023
    Publication date: January 11, 2024
    Applicant: Japan Display Inc.
    Inventors: Shinichiro OKA, Koichi IGETA, Yasuyuki YAMADA, Hiroumi KINJO
  • Publication number: 20230408743
    Abstract: According to one embodiment, a liquid crystal optical element includes a first liquid crystal layer including a first cholesteric liquid crystal and a second liquid crystal layer including a second cholesteric liquid crystal, a helical pitch of each of the first cholesteric liquid crystal and the second cholesteric liquid crystal changing continuously. The first cholesteric liquid crystal including a first portion having a first helical pitch and a second portion having a second helical pitch different from the first helical pitch. The second cholesteric liquid crystal including a third portion having a third helical pitch and a fourth portion having a fourth helical pitch different from the third helical pitch.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 21, 2023
    Applicants: Japan Display Inc., OSAKA UNIVERSITY
    Inventors: Ayaka HIGUCHI, Koichi IGETA, Shinichiro OKA, Yasushi TOMIOKA, Hiroyuki YOSHIDA
  • Publication number: 20230400747
    Abstract: According to one embodiment, an intelligent reflecting device includes a first substrate including a first base and a plurality of patch electrodes, a second substrate including a second base and a common electrode opposed to the plurality of patch electrodes, a liquid crystal layer held between the first and second substrates, a heat exchanger provided in contact with the second substrate, a temperature sensor, and a temperature controller that controls the heat exchanger based on the temperature detected by the temperature sensor, wherein an incident wave is incident on an incidence surface of the first substrate, and the heat exchanger is provided on a surface opposed to the incidence surface.
    Type: Application
    Filed: August 17, 2023
    Publication date: December 14, 2023
    Applicant: Japan Display Inc.
    Inventors: Shinichiro OKA, Mitsutaka OKITA, Daiichi SUZUKI, Shigesumi ARAKI
  • Publication number: 20230397451
    Abstract: A display device includes a flexible substrate including a first region including a display region, a second region including a curved region, and a third region including a terminal region; an electro-optical element located in the display region; and a resin layer continuously extending from the first region to the third region.
    Type: Application
    Filed: August 14, 2023
    Publication date: December 7, 2023
    Inventors: Masumi NISHIMURA, Shinichiro OKA
  • Publication number: 20230375764
    Abstract: According to one embodiment, a liquid crystal optical element includes a transparent substrate including a main surface, an alignment film disposed on the main surface, and a liquid crystal layer overlapping the alignment film and including a cholesteric liquid crystal including liquid crystal molecules stacked helically and an additive exhibiting a liquid crystalline property. In the liquid crystal layer, a reflective surface along which alignment directions of the liquid crystal molecules are identical is inclined with respect to the main surface.
    Type: Application
    Filed: May 17, 2023
    Publication date: November 23, 2023
    Applicants: Japan Display Inc., Osaka University
    Inventors: Koichi IGETA, Shinichiro OKA, Yasushi TOMIOKA, Hiroyuki YOSHIDA