Patents by Inventor Hiroshi Miyairi

Hiroshi Miyairi 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: 20220196219
    Abstract: A lighting device includes: a light source having a light-emitting surface; a reflector having a reflective surface configured to reflect light emitted from the light source; and a lens on which light reflected by the reflective surface is incident. The reflective surface is composed of a portion of a spheroidal surface that includes a first focal point located on the light-emitting surface and a second focal point located between the reflective surface and the lens. The reflective surface intersects a major axis of the spheroidal surface. A value obtained by dividing a first distance, which is a distance between the first focal point and the second focal point, by a second distance, which is a distance between the first focal point and an intersection point of the reflective surface and the major axis, is 7 or greater.
    Type: Application
    Filed: December 20, 2021
    Publication date: June 23, 2022
    Applicant: NICHIA CORPORATION
    Inventor: Hiroshi MIYAIRI
  • Patent number: 11221122
    Abstract: A lighting device includes: a light emission part; a reflector disposed above the light emission part and configured to reflect a first portion of light emitted from the light emission part; a first lens having a first incident face through which light reflected by the reflector enters; a second lens disposed higher than the first lens, and having a second incident face through which a second portion of the light emitted from the light emission part enters, wherein the second incident face is father than the first incident face from the light emission part; a first light shielding member disposed between the first lens and the second lens; a second light shielding member between the light emission part and the first lens; a third light shielding member between the light emission part and the second lens; and an actuator configured to move the second and third light shielding members.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: January 11, 2022
    Assignee: NICHIA CORPORATION
    Inventor: Hiroshi Miyairi
  • Patent number: 11137123
    Abstract: A method of manufacturing a light emitting device includes: bonding a wavelength conversion sheet containing phosphor particles onto upper surfaces of light emitting elements mounted on a substrate; dividing the wavelength conversion sheet into a plurality of wavelength conversion members, each corresponding to one of the light emitting elements, by cutting from an upper surface of the wavelength conversion sheet; forming light reflecting members between adjacent ones of the wavelength conversion members to reflect light emitted from the light emitting elements; and machining an upper surface of a collective body including the wavelength conversion members and the light reflecting members into a curved surface having a concave shape.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: October 5, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Hiroshi Miyairi, Shinya Endo
  • Publication number: 20210301998
    Abstract: A lighting device includes: a light emission part; a reflector disposed above the light emission part and configured to reflect a first portion of light emitted from the light emission part; a first lens having a first incident face through which light reflected by the reflector enters; a second lens disposed higher than the first lens, and having a second incident face through which a second portion of the light emitted from the light emission part enters, wherein the second incident face is father than the first incident face from the light emission part; a first light shielding member disposed between the first lens and the second lens; a second light shielding member between the light emission part and the first lens; a third light shielding member between the light emission part and the second lens; and an actuator configured to move the second and third light shielding members.
    Type: Application
    Filed: February 24, 2021
    Publication date: September 30, 2021
    Applicant: NICHIA CORPORATION
    Inventor: Hiroshi MIYAIRI
  • Publication number: 20210265536
    Abstract: A light emitting device includes: a substrate; a light emitting element; a wavelength conversion layer; and a wall surrounding the wavelength conversion layer, having an opening portion exposing at least a part of a top surface of the wavelength conversion layer, and containing a light reflective material. The surface of the wall includes a top surface provided at a higher position than the top surface of the wavelength conversion layer, and an inner surface forming the opening portion. The wall includes a first portion surrounding the wavelength conversion layer, and a second portion provided over the first portion and surrounding the first portion. The opening portion is hollow. An angle of a corner portion between the top surface and the inner surface of the wall is in a range of 90 degrees or greater and less than 180 degrees.
    Type: Application
    Filed: January 21, 2021
    Publication date: August 26, 2021
    Inventors: Hiroshi MIYAIRI, Yoshimi KATSUMOTO, Takayuki IGARASHI, Yoshifumi HODONO, Shinya ENDO
  • Publication number: 20200393103
    Abstract: A method of manufacturing a light emitting device includes: bonding a wavelength conversion sheet containing phosphor particles onto upper surfaces of light emitting elements mounted on a substrate; dividing the wavelength conversion sheet into a plurality of wavelength conversion members, each corresponding to one of the light emitting elements, by cutting from an upper surface of the wavelength conversion sheet; forming light reflecting members between adjacent ones of the wavelength conversion members to reflect light emitted from the light emitting elements; and machining an upper surface of a collective body including the wavelength conversion members and the light reflecting members into a curved surface having a concave shape.
    Type: Application
    Filed: August 28, 2020
    Publication date: December 17, 2020
    Applicant: NICHIA CORPORATION
    Inventors: Hiroshi MIYAIRI, Shinya ENDO
  • Patent number: 10794558
    Abstract: A light emitting device includes: a substrate; a plurality of light emitting elements mounted on the substrate; a plurality of wavelength conversion members, each containing phosphor particles and being disposed on a respective one of the light emitting elements; and a plurality of light reflecting members disposed between adjacent ones of the wavelength conversion members to reflect light emitted from the light emitting elements. The wavelength conversion members and the light reflecting members are included in a collective body that has a curved upper surface having a concave shape.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: October 6, 2020
    Assignee: NICHIA CORPORATION
    Inventors: Hiroshi Miyairi, Shinya Endo
  • Publication number: 20200041085
    Abstract: A light emitting device includes: a substrate; a plurality of light emitting elements mounted on the substrate; a plurality of wavelength conversion members, each containing phosphor particles and being disposed on a respective one of the light emitting elements; and a plurality of light reflecting members disposed between adjacent ones of the wavelength conversion members to reflect light emitted from the light emitting elements. The wavelength conversion members and the light reflecting members are included in a collective body that has a curved upper surface having a concave shape.
    Type: Application
    Filed: August 5, 2019
    Publication date: February 6, 2020
    Applicant: NICHIA CORPORATION
    Inventors: Hiroshi MIYAIRI, Shinya ENDO
  • Patent number: 10502381
    Abstract: A light-emitting module includes a light source unit including light-emitting elements horizontally aligned; a projection lens receiving light emitted from the light source unit, and projecting the light through a light exiting surface of the projection lens in a radiation direction; and a frame body holding the light source unit and the projection lens at predetermined positions. The projection lens comprise a first and second lenses each having the same focal length and curvature, and being disposed adjacently in a vertical direction or as an integrated body. A vertical division ratio of lower one of the first and second lenses to the other one is larger than 1. Optical axes of the first and second lenses differ in the vertical direction. A value in the vertical direction of a horizontal-to-vertical ratio for a light-emitting area of light-emitting elements is smaller than a value in the horizontal direction of a horizontal-to-vertical ratio for the light projected from the projection lens.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: December 10, 2019
    Assignee: NICHIA CORPORATION
    Inventor: Hiroshi Miyairi
  • Patent number: 10409112
    Abstract: A liquid crystal display device has pixels in a TFT substrate, each of the pixels has a TFT. An organic insulting film 108 is formed to cover the TFT. A first electrode 109 and a second electrode 111 are formed above the organic insulting film 108 with an inorganic insulating film 110 placed between the first electrode 109 and the second electrode 111. An alignment film is formed on the first electrode 109 and the second electrode 111. The second electrode 111 connects with the TFT through a contact hole formed in the organic insulating film 108. A cross section of the organic insulating film 108 that includes the contact hole and is parallel to the second direction has a convex section and a concave section 70 at a bank located near the contact hole, the convex section being located closer to the contact hole than the concave section 70.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: September 10, 2019
    Assignee: Japan Display Inc.
    Inventors: Tomokazu Ishikawa, Yuki Kuramoto, Hiroshi Miyairi, Ryota Kobayashi, Katsuto Sugimoto
  • Publication number: 20190093845
    Abstract: A light-emitting module includes a light source unit including light-emitting elements horizontally aligned; a projection lens receiving light emitted from the light source unit, and projecting the light through a light exiting surface of the projection lens in a radiation direction; and a frame body holding the light source unit and the projection lens at predetermined positions. The projection lens comprise a first and second lenses each having the same focal length and curvature, and being disposed adjacently in a vertical direction or as an integrated body. A vertical division ratio of lower one of the first and second lenses to the other one is larger than 1. Optical axes of the first and second lenses differ in the vertical direction. A value in the vertical direction of a horizontal-to-vertical ratio for a light-emitting area of light-emitting elements is smaller than a value in the horizontal direction of a horizontal-to-vertical ratio for the light projected from the projection lens.
    Type: Application
    Filed: September 19, 2018
    Publication date: March 28, 2019
    Applicant: NICHIA CORPORATION
    Inventor: Hiroshi MIYAIRI
  • Patent number: 10001687
    Abstract: In a high-resolution liquid crystal display device, measures against display unevenness caused by generation of a region where no alignment film is applied are provided. A liquid crystal display device includes a pixel formed between a scanning line and a video signal line. The pixel includes a TFT, a pixel electrode, and a contact hole connecting the TFT and the pixel electrode. The contact hole is formed in an insulation film formed between the pixel electrode and the TFT. Assuming that a horizontal pitch of the video signal line is ph and a horizontal diameter of the contact hole is dh, ph is 26 ?m or less and s/ph is 0.73 or more where s=ph?dh. A tapered angle of a sidewall of the contact hole is 53 degrees or less. A thickness of an alignment film over the pixel electrode is 110 nm or more.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: June 19, 2018
    Assignee: Japan Display Inc.
    Inventors: Masato Shimura, Shunsuke Yuge, Hiroshi Miyairi, Tomokazu Ishikawa, Tomonori Nishino
  • Patent number: 9761773
    Abstract: A light emitting device is provided. The light emitting device includes a substrate and a plurality of light emitting elements. The light emitting elements are electrically connected on the substrate, each having a light emitting surface. A light-transmissive member is arranged on the light emitting elements and a light-reflective member covers a lateral surface of the light emitting elements and a lateral surface of the light-transmissive member. The plurality of light emitting elements include a plurality of first light emitting elements and a second light emitting element that has an area of the light emitting surface smaller than that of each of the first light emitting elements. The second light emitting element is arranged between the first light emitting elements.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: September 12, 2017
    Assignee: NICHIA CORPORATION
    Inventors: Tomonori Miyoshi, Hiroshi Miyairi
  • Publication number: 20170235167
    Abstract: A liquid crystal display device has pixels in a TFT substrate, each of the pixels has a TFT. An organic insulting film 108 is formed to cover the TFT. A first electrode 109 and a second electrode 111 are formed above the organic insulting film 108 with an inorganic insulating film 110 placed between the first electrode 109 and the second electrode 111. An alignment film is formed on the first electrode 109 and the second electrode 111. The second electrode 111 connects with the TFT through a contact hole formed in the organic insulating film 108. A cross section of the organic insulating film 108 that includes the contact hole and is parallel to the second direction has a convex section and a concave section 70 at a bank located near the contact hole, the convex section being located closer to the contact hole than the concave section 70.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 17, 2017
    Inventors: Tomokazu ISHIKAWA, Yuki KURAMOTO, Hiroshi MIYAIRI, Ryota KOBAYASHI, Katsuto SUGIMOTO
  • Patent number: 9726334
    Abstract: A lighting unit includes a board on which a light emitting portion having a semiconductor light emitting device is arrayed on an upper side along the longitudinal direction. The lighting unit also includes a reflector which is disposed on the upper side of the board, and has a reflection portion inside the reflector for reflecting a light from the light emitting portion, as well as covering the light emitting portion. The lighting unit further includes a case disposed so as to support the board and the reflector from the top and the bottom.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: August 8, 2017
    Assignee: Nichia Corporation
    Inventors: Satoshi Ozeki, Hiroshi Miyairi, Masato Ono
  • Patent number: 9631797
    Abstract: A light emitting device has a plurality of light emitting elements, a heat spreading member on which the plurality of light emitting elements are mounted, and having a bottom face, an insulating member having a recess that includes side walls and a bottom wall, a top face of the bottom wall being in contact with the bottom face of the heat spreading member, and a circuit board having a circuit that is provided on the heat spreading member and supplies power to the plurality of light emitting elements.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: April 25, 2017
    Assignee: NICHIA CORPORATION
    Inventors: Hiroshi Miyairi, Takayuki Igarashi, Masato Fujitomo, Satoshi Shirahama
  • Publication number: 20170090257
    Abstract: In a high-resolution liquid crystal display device, measures against display unevenness caused by generation of a region where no alignment film is applied are provided. A liquid crystal display device includes a pixel formed between a scanning line and a video signal line. The pixel includes a TFT, a pixel electrode, and a contact hole connecting the TFT and the pixel electrode. The contact hole is formed in an insulation film formed between the pixel electrode and the TFT. Assuming that a horizontal pitch of the video signal line is ph and a horizontal diameter of the contact hole is dh, ph is 26 ?m or less and s/ph is 0.73 or more where s=ph?dh. A tapered angle of a sidewall of the contact hole is 53 degrees or less. A thickness of an alignment film over the pixel electrode is 110 nm or more.
    Type: Application
    Filed: August 24, 2016
    Publication date: March 30, 2017
    Applicant: Japan Display Inc.
    Inventors: Masato SHIMURA, Shunsuke Yuge, Hiroshi Miyairi, Tomokazu Ishikawa, Tomonori Nishino
  • Publication number: 20160372515
    Abstract: A light emitting device is provided. The light emitting device includes a substrate and a plurality of light emitting elements. The light emitting elements are electrically connected on the substrate, each having a light emitting surface. A light-transmissive member is arranged on the light emitting elements and a light-reflective member covers a lateral surface of the light emitting elements and a lateral surface of the light-transmissive member. The plurality of light emitting elements include a plurality of first light emitting elements and a second light emitting element that has an area of the light emitting surface smaller than that of each of the first light emitting elements. The second light emitting element is arranged between the first light emitting elements.
    Type: Application
    Filed: June 17, 2016
    Publication date: December 22, 2016
    Applicant: NICHIA CORPORATION
    Inventors: Tomonori MIYOSHI, Hiroshi MIYAIRI
  • Patent number: 9387715
    Abstract: In order to prevent protruded parts formed on an oriented film print pattern of a printing plate for flexographic printing from being lost, a linear bank is formed on the periphery of one side of the oriented film print pattern where wiping work is started. The bank prevents the protruded part in the oriented film print pattern from being lost by the wiping work. The protruded parts are formed in a matrix in order to retain an oriented film liquid in the oriented film print pattern. Thickness irregularity of the oriented film due to presence of the bank is reduced by making the diameters of the protruded parts smaller in a peripheral region than in a central region of the oriented film print pattern and forming a space between the peripheral-side protruded parts and the bank.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: July 12, 2016
    Assignee: JAPAN DISPLAY INC.
    Inventors: Shunsuke Yuge, Hiroshi Miyairi
  • Patent number: 9190579
    Abstract: A method for manufacturing a light emitting device that comprises a light emitting element and a phosphor layer to absorb at least a part of light emitted from the light emitting element to emit a light having a different wavelength from that of the absorbed light comprises a first resin layer forming step of forming a first resin layer with a first resin in which viscosity is adjusted to a first viscosity on a light emitting face of the light emitting element to define a predetermined shape of the phosphor layer; a second resin layer forming step of forming a second resin layer with a second resin containing a phosphor in which viscosity is adjusted to a second viscosity lower than the first viscosity on the first resin layer before curing the first resin layer; and a curing step of curing the first resin layer and the second resin layer.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: November 17, 2015
    Assignee: NICHIA CORPORATION
    Inventors: Takashi Sato, Hiroshi Miyairi, Kazunori Watanabe