Patents by Inventor Yuiga HAMADE

Yuiga HAMADE 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: 12622159
    Abstract: A display device includes: an organic layer including a light-emitting layer, the light-emitting layer including an organic light-emitting material; a reflective layer configured to reflect light generated at the light-emitting layer; a first electrode that is transparent; a second electrode that is transparent; and an optical adjustment layer configured to adjust an optical distance between the reflective layer and the second electrode. The reflective layer, the optical adjustment layer, the first electrode, the organic layer, and the second electrode are arranged in order. A reflectance of a first interface between the organic layer and the first electrode and a reflectance of a second interface between the organic layer and the second electrode are each 11% or less.
    Type: Grant
    Filed: August 30, 2023
    Date of Patent: May 5, 2026
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yuiga Hamade
  • Publication number: 20260096286
    Abstract: An electro-optical device includes: a light emitting element including a first electrode having reflectivity, a first light emitting layer configured to emit light in a first wavelength region including a first wavelength, a donor layer, an acceptor layer in contact with the donor layer, a second light emitting layer configured to emit light in a second wavelength region including a second wavelength, and a second electrode having reflectivity and transparency, stacked in order. The first wavelength region does not overlap the second wavelength region.
    Type: Application
    Filed: September 25, 2025
    Publication date: April 2, 2026
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yuiga HAMADE, Daiki MATSUMOTO
  • Publication number: 20260096284
    Abstract: An electro-optical device includes: a light emitting element including a first electrode having reflectivity, a first light emitting layer configured to emit light in a first wavelength region including a first wavelength, a donor layer, an acceptor layer in contact with the donor layer, a second light emitting layer configured to emit light in a second wavelength region including a second wavelength, and a second electrode having reflectivity and transparency, stacked in order. The first wavelength region and the second wavelength region overlap partially or entirely.
    Type: Application
    Filed: September 24, 2025
    Publication date: April 2, 2026
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yuiga HAMADE
  • Publication number: 20260072278
    Abstract: A virtual image display device includes a segmented OLED panel having a light emission region emitting a backlight and a first transparent region transmitting an external light, a display element having a pixel including a sub-pixel that faces the light emission region and transmits the backlight to emit a video light and a second transparent region that faces the first transparent region and transmits the external light, a patterned half-waveplate having a first polarization region that faces the sub-pixel and has a first polarization characteristic selectively functioning with respect to a linearly-polarized light in a polarization direction parallel to a first axis direction and a second polarization region that faces the second transparent region and has a polarization characteristic, and a polarization imaging optical system that faces the display element with the patterned half-waveplate in between, images the video light, and transmits the external light.
    Type: Application
    Filed: September 8, 2025
    Publication date: March 12, 2026
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi TAKEDA, Yuiga HAMADE
  • Publication number: 20260003196
    Abstract: A virtual image display device includes: a transmissive OLED panel configured to transmit external light in a first state and emit backlight in a second state, a display member of a transmissive type facing the transmissive OLED panel, and configured to further transmit the external light passed through the transmissive OLED panel in the first state and transmit the backlight emitted from the transmissive OLED panel in the second state to emit image light, and an imaging optical system facing the transmissive OLED panel with the display member in between, and configured to transmit at least part of the external light in the first state and form an image with the image light in the second state. The transmissive OLED panel includes a first transmissive OLED element configured to emit light of a first color, and a second transmissive OLED element configured to emit light of a second color.
    Type: Application
    Filed: June 25, 2025
    Publication date: January 1, 2026
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yuiga HAMADE, Takashi TAKEDA
  • Patent number: 12481122
    Abstract: An optical display device includes an image display element configured to emit image light, a deflection member configured to deflect the image light emitted from the image display element, an optical device including a lens barrel for accommodating a lens group including an objective lens and an eyepiece, and a moving mechanism provided at the lens barrel of the optical device and configured to hold a state in which at least the deflection member is moved in a direction intersecting an optical axis of the lens group.
    Type: Grant
    Filed: August 17, 2023
    Date of Patent: November 25, 2025
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Ota, Yuiga Hamade, Mitsutaka Ide
  • Patent number: 12446428
    Abstract: An optical modulation device includes a first electro-optical device including a first light-emitting element including a light-emitting layer emitting light including a red wavelength region, a second electro-optical device including a second light-emitting element including a light-emitting layer emitting light including a green wavelength region, a third electro-optical device including a third light-emitting element including a light-emitting layer emitting light including a blue wavelength region, and a prism that synthesizes light emitted from the first, second and third electro-optical devices. Each of the first, second and third light-emitting elements includes a first electrode, a second electrode, and a conductive layer provided therebetween and having a lower reflectance with respect to the light emitted from the light-emitting layer than from the first electrode.
    Type: Grant
    Filed: March 30, 2023
    Date of Patent: October 14, 2025
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yuiga Hamade
  • Publication number: 20250301860
    Abstract: The electro-optical device includes a light-emitting element having a light-emitting layer sandwiched between a pixel electrode and a common electrode and being in contact with the light-emitting layer in an opening region of a pixel separation layer, a partition wall surrounding the light-emitting element and the common electrode in plan view, an insulating sealing layer having an insulating property and transparency and covering the light-emitting element and the partition wall, and a planarization layer having an insulating property and transparency, covering the sealing layer, and having a higher refractive index than the sealing layer, in which a surface facing the planarization layer of the sealing layer in the opening region in plan view is a concave surface in cross-sectional view.
    Type: Application
    Filed: March 24, 2025
    Publication date: September 25, 2025
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yuiga HAMADE
  • Publication number: 20250275378
    Abstract: An electro-optical device includes a substrate, a pixel electrode, a light-emitting layer in contact with the pixel electrode in plan view at an opening region defined by an opening end, a common electrode that sandwiches the light-emitting layer with the pixel electrode, a conductive partition wall being in contact with the common electrode and surrounds the pixel electrode, the light-emitting layer, and the common electrode in plan view, and an upper portion provided on the upper surface of the partition wall to protrude from the partition wall in cross-sectional view. When a distance of a Z-direction component of a straight line coupling a tip of the upper portion to the opening end is defined as ? and a distance of a component of the straight line along a substrate surface is defined as ?, there is a relationship of ?>?.
    Type: Application
    Filed: February 25, 2025
    Publication date: August 28, 2025
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yuiga HAMADE
  • Patent number: 12364139
    Abstract: An electro-optical device includes, in plan view, a light-emitting region B that emits blue light, a coloring layer Cf_B that transmits the blue light, a light-emitting region G1 that is disposed adjacent to the light-emitting region B in a Y direction and emits green light, a coloring layer Cf_G that is provided overlapping the light-emitting region G1 and transmits the green light, a light-emitting region R that is disposed adjacent to the light-emitting region G1 in an X direction and emits red light, a coloring layer Cf_R that is provided overlapping the light-emitting region R and transmits the red light, a light-emitting region G2 that is disposed adjacent to the light-emitting region G1 in an E direction and emits green light, and a coloring layer Cf_G that is provided overlapping the light-emitting region G2 and transmits the green light, wherein the coloring layer Cf_B includes a region that overlaps the light-emitting region B in plan view, and a region located between the light-emitting regions G1
    Type: Grant
    Filed: October 28, 2022
    Date of Patent: July 15, 2025
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yuiga Hamade, Jun Irobe
  • Patent number: 12279492
    Abstract: An optical module of the present disclosure includes a first panel including a first light-emitting element, a first power supply wiring and a second power supply wiring; a second panel including a second light-emitting element having light emission luminance per unit current lower than that of the first light-emitting element, a third power supply wiring and a fourth power supply wiring; and a prism configured to synthesize first image light emitted from the first panel and second image light emitted from the second panel. A first potential difference is smaller than a second potential difference, the first potential difference being a difference between a potential applied to the first power supply wiring and a potential applied to the second power supply wiring, the second potential difference being a difference between a potential applied to the third power supply wiring and a potential applied to the fourth power supply wiring.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: April 15, 2025
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takumi Kodama, Yuiga Hamade
  • Publication number: 20250107284
    Abstract: An electro-optical device includes a common electrode; a plurality of structural bodies, each including a first semiconductor layer electrically coupled to the first electrode, a second semiconductor layer, and a light emission function layer provided between the first semiconductor layer and the second semiconductor layer; and a driving printed wired board including a pixel electrode and a driving circuit electrically coupled to the pixel electrode. The plurality of structural bodies include a first structural body provided at a position overlapping the pixel electrode in plan view, the pixel electrode being electrically coupled to the second semiconductor layer, and a second structural body provided at a position not overlapping the pixel electrode in plan view, the pixel electrode not being electrically coupled to the second semiconductor layer.
    Type: Application
    Filed: September 20, 2024
    Publication date: March 27, 2025
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yuiga HAMADE, Narumi ISHIBASHI, Hitoshi OTA
  • Publication number: 20250024738
    Abstract: An electro-optical device includes reflective electrodes having light reflectivity and being adjacent to each other along an X direction, pixel electrodes being formed of TiN and being adjacent to each other along the X direction, an optical adjustment layer, a pixel separation layer opening in an opening portion Ap_R with respect to the pixel electrode and opening in an opening portion Ap_G with respect to the pixel electrode, a common electrode, and an organic layer being provided between the common electrode and the pixel electrode. An end P1 of the opening portion Ap_R, an end P2 of the reflective electrode, and an end P3 of the pixel electrode are positioned in the stated order along the X direction, and an end P4 of the opening portion Ap_G, an end P5 of the reflective electrode, and an end P6 of the pixel electrode are positioned in the stated order along a direction opposite to the X direction.
    Type: Application
    Filed: July 9, 2024
    Publication date: January 16, 2025
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yuiga HAMADE
  • Publication number: 20250017073
    Abstract: An electro-optical device includes a light-emitting region B and a colored layer Cf_B, a light-emitting region G1 and a colored layer Cf_G disposed adjacent to the light-emitting region B in a Y direction, a light-emitting region R and a colored layer Cf_R disposed adjacent to the light-emitting region G1 in an X direction, and a light-emitting region G2 and a colored layer Cf_G disposed adjacent to the light-emitting region G1 in an E direction, the colored layer Cf_B includes a region Ba overlapping the light-emitting region B, and a region Bb1 located between the light-emitting region G1 and the light-emitting region G2, the colored layer Cf_R includes a region Ra overlapping the light-emitting region R, and a region Rb3 located between the light-emitting region G1 and the light-emitting region G2, and the region Bb1 and the region Rb3 at least partially overlap each other.
    Type: Application
    Filed: July 2, 2024
    Publication date: January 9, 2025
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yuiga HAMADE
  • Publication number: 20240334726
    Abstract: An electro-optical device includes first light-emitting element including counter electrode, first pixel electrode, and first light-emitting layer, and emitting light in first wavelength region, second light-emitting element including the counter electrode, second pixel electrode, and second light-emitting layer, and emitting light in second wavelength region, first reflection layer, first optical adjustment layer configured to adjust a first optical distance between the first reflection layer and the counter electrode, a second reflection layer, and a second optical adjustment layer configured to adjust a second optical distance between the second reflection layer and the counter electrode, wherein the light, in the first wavelength region resonates between the first reflection layer and the counter electrode, the light, in the second wavelength region resonates between the second reflection layer and the counter electrode, and a material forming the first light-emitting layer and a material forming the seco
    Type: Application
    Filed: March 26, 2024
    Publication date: October 3, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yuiga HAMADE
  • Publication number: 20240306467
    Abstract: Provided is a display device including: a first colored layer provided at an opposite side of a first light-emitting element with respect to a sealing layer; and a second colored layer provided at an opposite side of a second light-emitting element with respect to the sealing layer. The first colored layer includes a first flat surface at an opposite side of the sealing layer, a first side surface in contact with the second colored layer, and a first coupling surface inclined with respect to the first flat surface, coupling the first flat surface and the first side surface, and separated from the second colored layer. The second colored layer includes a second flat surface at the opposite side of the sealing layer, a second side surface in contact with the first side surface, and a second coupling surface inclined with respect to the second flat surface, coupling the second flat surface and the second side surface, and separated from the first colored layer.
    Type: Application
    Filed: March 5, 2024
    Publication date: September 12, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Jun IROBE, Yuiga HAMADE
  • Patent number: 12013547
    Abstract: An optical module according to the present disclosure includes a first electro-optical device having a first light-emitting element emitting light including a first wavelength region, and a first light-emitting control transistor provided corresponding to the first light-emitting element, a second electro-optical device having a second light-emitting element emitting light including a second wavelength region shorter than the first wavelength region, and a second light-emitting control transistor provided corresponding to the second light-emitting element, and a prism configured to synthesize light emitted from the first electro-optical device, and light emitted from the second electro-optical device, wherein a first period in which the first light-emitting control transistor is in an ON-state in one frame is shorter than a second period in which the second light-emitting control transistor is in an ON-state in the one frame.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: June 18, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yuiga Hamade, Takumi Kodama
  • Publication number: 20240074292
    Abstract: A display device includes: an organic layer including a light-emitting layer, the light-emitting layer including an organic light-emitting material; a reflective layer configured to reflect light generated at the light-emitting layer; a first electrode that is transparent; a second electrode that is transparent; and an optical adjustment layer configured to adjust an optical distance between the reflective layer and the second electrode. The reflective layer, the optical adjustment layer, the first electrode, the organic layer, and the second electrode are arranged in order. A reflectance of a first interface between the organic layer and the first electrode and a reflectance of a second interface between the organic layer and the second electrode are each 11% or less.
    Type: Application
    Filed: August 30, 2023
    Publication date: February 29, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Yuiga HAMADE
  • Publication number: 20240061208
    Abstract: An optical display device includes an image display element configured to emit image light, a deflection member configured to deflect the image light emitted from the image display element, an optical device including a lens barrel for accommodating a lens group including an objective lens and an eyepiece, and a moving mechanism provided at the lens barrel of the optical device and configured to hold a state in which at least the deflection member is moved in a direction intersecting an optical axis of the lens group.
    Type: Application
    Filed: August 17, 2023
    Publication date: February 22, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hitoshi OTA, Yuiga HAMADE, Mitsutaka IDE
  • Publication number: 20240053606
    Abstract: A display unit includes a mounting member mounted on a first accommodation member configured to accommodate a lens group including an objective lens and an eyepiece, a display element that emits video light, a first deflection member that deflects the video light from the display element, and a second accommodation member configured to accommodate the display element and the first deflection member. The second accommodation member is mounted on the first accommodation member, such that the first deflection member is disposed on an axis of the lens group, by the mounting member. When the first deflection member is disposed on the axis of the lens group, an axis of the video light deflected by the first deflection member overlaps with the axis of the lens group.
    Type: Application
    Filed: August 8, 2023
    Publication date: February 15, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Mitsutaka IDE, Yuiga HAMADE