Patents Assigned to Nichias Corporation
  • Publication number: 20210131619
    Abstract: A light emitting device includes: a base; a first semiconductor laser element disposed on an upper surface of the base and configured to emit first light; a first light reflecting member disposed on the upper surface of the base, the first light reflecting member having a first light reflecting face including a plane configured to reflect the first light; a second semiconductor laser element disposed on an upper surface of the base and configured to emit second light; a second light reflecting member disposed on the upper surface of the base, the second light reflecting member having a second light reflecting face including a plane configured to reflect the second light; and a phosphor member onto which the first light reflected from the first light reflecting member and the second light reflected from the second light reflecting member are irradiated.
    Type: Application
    Filed: January 14, 2021
    Publication date: May 6, 2021
    Applicant: NICHIA CORPORATION
    Inventors: Tadayuki KITAJIMA, Soichiro MIURA
  • Publication number: 20210135426
    Abstract: A light emitting device includes: a plurality of light emitting elements including a first light emitting element and a second light emitting element; a case enclosing the light emitting elements and comprising a light-transmissive region; a plurality of main lenses, each covering a portion of the light-transmissive region, the plurality of main lenses including a first main lens configured to collimate or converge light emitted from the first light emitting element and a second main lens configured to collimate or converge light emitted from the second light emitting element; and a plurality of sub-lenses disposed in the case, the plurality of sub-lenses including a first sub-lens located in an optical path between the first light emitting element and the first main lens, and a second sub-lens located in an optical path between the second light emitting element and the second main lens.
    Type: Application
    Filed: October 13, 2020
    Publication date: May 6, 2021
    Applicant: NICHIA CORPORATION
    Inventors: Soichiro MIURA, Ryota OKUNO
  • Publication number: 20210136891
    Abstract: A lighting device including a first light emitting device that emits light of first chromaticity coordinates and has a high melanopic ratio, a second light emitting device that emits light of second chromaticity coordinates, and a third light emitting device that emits light of third chromaticity coordinates and has a low melanopic ratio, wherein light in a range from a first temperature to a second temperature on the black body radiation locus is included in a triangular area surrounded by a straight line connecting the first chromaticity coordinates and the second chromaticity coordinates, a straight line connecting the second chromaticity coordinates and the third chromaticity coordinates, and a straight line connecting the third chromaticity coordinates and the first chromaticity coordinates, in the chromaticity diagram of the CIE1931 color system.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 6, 2021
    Applicant: NICHIA CORPORATION
    Inventors: Junichi EGUCHI, Kenji ASAI
  • Publication number: 20210135045
    Abstract: A method of manufacturing a light-emitting device includes providing a structure body including a silicon substrate having a first portion, a second portion, and a third portion between the first portion and the second portion, and a first semiconductor layered body including a first light-emitting layer, the first semiconductor layered body being disposed on or above the silicon substrate. The method includes forming a first resin layer covering a lateral side of the silicon substrate and a lateral side of the first semiconductor layered body. The method includes a removal step of removing the first portion to expose a first surface of the first semiconductor layered body, removing the second portion to expose a second surface of the first semiconductor layered body, and leaving the third portion. The method includes forming a first wavelength conversion member on or above the first surface exposed by the removal of the first portion.
    Type: Application
    Filed: October 23, 2020
    Publication date: May 6, 2021
    Applicant: NICHIA CORPORATION
    Inventor: Hidetoshi TANAKA
  • Publication number: 20210135075
    Abstract: A package includes a first lead including a first electrode terminal, a second lead including a second electrode terminal, a first molded body holding the first lead, and a second molded body holding the second lead. The second lead is provided on the first lead in an overlapping direction such that the first electrode terminal of the first lead overlaps with the second electrode terminal of the second lead when viewed in the overlapping direction. The first electrode terminal and the second electrode terminal are electrically connected to each other without adding additional material. A part of the first molded body and a part of the second molded body are in contact with each other.
    Type: Application
    Filed: January 13, 2021
    Publication date: May 6, 2021
    Applicant: NICHIA CORPORATION
    Inventor: Yuki SHIOTA
  • Patent number: 10995403
    Abstract: A method of forming an aluminum nitride film includes: preparing a substrate that comprises, in a surface thereof, a plurality of concave portions that are separated from each other; forming an aluminum nitride film on said surface of the substrate and on an inner surface of each of the concave portions such that open holes are formed in a portion of the aluminum nitride film corresponding to each of the concave portions, each of the holes being smaller than each of openings of the concave portions; and applying heat treatment to the substrate with the aluminum nitride film formed thereon in a nitrogen gas containing a carbon monoxide gas to close the holes formed in the aluminum nitride film.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: May 4, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Yojiro Ichiraku
  • Patent number: 10998698
    Abstract: A light source device includes: a plurality of laser light sources, each configured to emit a light beam; a plurality of collimating lenses, each configured to collimate the light beam emitted from a corresponding one of the laser light sources; a first transmission diffraction grating configured to diffract and combine, in an identical diffraction angle direction, the light beams transmitted through the collimating lenses and incident on a single region at different incident angles; a sensor configured to detect a positional deviation in diffracted light beams that are diffracted and combined by the first transmission diffraction grating; and a plurality of wavelength selecting elements, each disposed on an optical path between a respective one of the collimating lenses and the first transmission diffraction grating and configured to select a wavelength of a corresponding one of the light beams incident on the first transmission diffraction grating.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: May 4, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Norihiro Dejima
  • Patent number: 10998472
    Abstract: A light emitting device includes: a light emitting element having an emission face and lateral faces; a wavelength conversion member having a first face and a second face which opposes the first face, the wavelength conversion member being disposed on the emission face of the light emitting element so that the first face faces the emission face; a reflecting member disposed on lateral face sides of the light emitting element and covering at least a portion of outer lateral faces of the wavelength conversion member, and a cover member disposed on an upper face of the reflecting member while being adjacent to peripheral ends of the wavelength conversion member. The cover member contains at least one of a reflecting substance and a coloring substance. A body color of the wavelength conversion member and a body color of the cover member are the same color or similar colors.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 4, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Hirosuke Hayashi
  • Patent number: 10995933
    Abstract: An optical device includes: a first reflective surface disposed to reflect, to a substantially arc-shaped first region around a first axis, at least a portion of first light incident along the first axis and having a light distribution characteristic with an optical axis parallel to the first axis, the first reflective surface including a plurality of reflective arc surfaces separated in a direction along the first axis; a second reflective surface and a third reflective surface intersecting each other on the first axis and disposed such that the first reflective surface is located between the second reflective surface and the third reflective surface; and a light-transmissive emission surface adapted to refract at least a portion of light reflected by the plurality of reflective arc surfaces to emit the light around the first axis, the emission surface having periodic irregularities in a cross section in the direction along the first axis.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: May 4, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Takanori Aruga, Hiroyuki Itahana, Wataru Kitahara, Yoshinori Momose, Masahiro Imai
  • Publication number: 20210125529
    Abstract: An optical device includes: a plurality of walls including at least a first wall and a second wall, wherein the plurality of walls are concentrically disposed around a first axis so as to be multi-stepped along the first axis, wherein each of the plurality of walls expands outward in a sector shape around the first axis at a predetermined central angle ? and includes an outer circumferential surface, a reflective curved surface at the outer circumferential surface, a first side end portion, and a second side end portion; a first reflective surface meeting the first side end portions of the walls; and a second reflective surface meeting the second side end portions of the walls. The first reflective surface and the second reflective surface meet each other on the first axis.
    Type: Application
    Filed: October 22, 2020
    Publication date: April 29, 2021
    Applicant: NICHIA CORPORATION
    Inventors: Takanori Aruga, Akira Nagahashi
  • Publication number: 20210126169
    Abstract: Provided is a light emitting device capable of realizing an excellent color rendering property.
    Type: Application
    Filed: December 31, 2020
    Publication date: April 29, 2021
    Applicant: NICHIA CORPORATION
    Inventors: Mika AMIYA, Shoji HOSOKAWA
  • Patent number: 10989303
    Abstract: A cylinder head gasket includes a composite member formed of a metal substrate and a rubber layer provided to both surfaces of the substrate. The substrate is formed of stainless steel having a content of C that is 0 to 0.15 mass %, a content of Si that is 0 to 0.5 mass %, a content of Mn that is 0 to 2.0 mass %, a content of Cr that is 11.5 to 13.0 mass %, a content of N that is 0 to 0.5 mass %, a content of P that is 0 to 0.040 mass %, a content of S that is 0 to 0.030 mass %, a content of Ni that is 0 to 0.6 mass %, the balance Fe, and inevitable impurities. The stainless steel forming the substrate has a 0.2% proof stress of 1,300 to 1,500 MPa.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: April 27, 2021
    Assignee: NICHIAS CORPORATION
    Inventor: Tetsuo Oohinata
  • Patent number: 10993296
    Abstract: A light-emitting module includes: a base body including electrical conductor wirings; a light-emitting element disposed on the base body and electrically connected to the electrical conductor wirings; a light reflection film disposed on an upper surface of the light-emitting element; and a half mirror disposed on a light extraction surface side of the light-emitting element and spaced apart from the light-emitting element. A spectral reflectance of the half mirror under perpendicular incidence at a wavelength longer than a peak emission wavelength of a light emitted from the light-emitting element is greater than a spectral reflectance of the half mirror under perpendicular incidence at the peak emission wavelength.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: April 27, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Motokazu Yamada
  • Patent number: 10991859
    Abstract: A light-emitting device includes a light-emitting element; a first light-transmissive member bonded to the light-emitting element, containing a wavelength conversion member, and including a lower surface having an area larger than an upper surface of the light-emitting element; a second light-transmissive member bonded to an upper surface of the first light-transmissive member, including a lower surface having an area larger than the upper surface of the first light-transmissive member and having a periphery located outward of the upper surface of the first light-transmissive member, and an upper surface having an area smaller than the upper surface of the light-emitting element; a first light-guiding member over a lateral surface of the light-emitting element and the periphery of the lower surface of the first light-transmissive member; and a second light-guiding member over a lateral surface of the first light-transmissive member and the periphery of the lower surface of the second light-transmissive member
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: April 27, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Shinya Endo
  • Publication number: 20210119093
    Abstract: According to one embodiment, the light guide plate has a first major surface, a second major surface, a side surface, and a recess. The recess is provided in the second major surface. The fluorescent layer is provided in the recess. The light-emitting element is bonded to the fluorescent layer and includes an electrode on a surface of the light-emitting element on a side opposite to a surface of the light-emitting element bonded to the fluorescent layer. The module side surface includes at least a portion of the side surface of the light guide plate. The first interconnect is provided along the second major surface and connected to the electrode of the light-emitting element. The second interconnect is provided on the module side surface and connected to the first interconnect.
    Type: Application
    Filed: December 30, 2020
    Publication date: April 22, 2021
    Applicant: NICHIA CORPORATION
    Inventor: Mamoru IMADA
  • Publication number: 20210116631
    Abstract: A light guide body aggregate substrate includes: a light-transmitting substrate having a main surface; a plurality of unit regions located at the main surface of the substrate, wherein the plurality of unit regions are spaced apart from each other, wherein the plurality of unit regions are arranged one-dimensionally in one row extending in a first direction and a plurality of columns, or arranged two-dimensionally in a plurality of rows extending in the first direction and a plurality of columns extending in a second direction, and wherein a light guide structure is located in each unit region; a first region located at the main surface of the substrate, surrounding the plurality of unit regions; and a 1-A alignment mark and a 1-B alignment mark arranged at the substrate in the first region.
    Type: Application
    Filed: December 30, 2020
    Publication date: April 22, 2021
    Applicant: NICHIA CORPORATION
    Inventor: Shinichi DAIKOKU
  • Publication number: 20210112726
    Abstract: An object of the present invention is to provide a method that can effectively/efficiently increase the amount of a phenolic compound such as a polyphenol. The invention provides a method for increasing an amount of a phenolic compound in a plant, or a method for producing a plant containing an increased amount of a phenolic compound, the method comprising irradiating the/a plant with ultraviolet light, wherein a fluence at wavelengths of 270 to 290 nm is 1500 to 50000 ?mol/m2 and a fluence at wavelengths of 310 to 400 nm is less than 50% of that at wavelengths of 270 to 290 nm.
    Type: Application
    Filed: April 27, 2018
    Publication date: April 22, 2021
    Applicant: NICHIA CORPORATION
    Inventors: Atsushi OKAZAWA, Yasuo FUJIKAWA, Tomohiro TSURUMOTO
  • Publication number: 20210116093
    Abstract: An illumination device includes a laser element, a rotating member including a plurality of flat mirror regions that are disposed along a circumference direction of the rotating member to sequentially reflect laser beams emitted from the first laser element with rotation of the rotating member, and a wavelength conversion member. Each of the laser beams reflected at a corresponding one of the mirror regions is incident on the wavelength conversion member. When viewed in a direction in which a rotation axis of the rotating member extends, the mirror regions are disposed at mutually different angles with respect to respective ones of lines each connecting the rotation axis and the center of a respective one of the mirror regions.
    Type: Application
    Filed: September 29, 2020
    Publication date: April 22, 2021
    Applicant: NICHIA CORPORATION
    Inventor: Kazunori WATANABE
  • Publication number: 20210119097
    Abstract: A light emitting device includes: a base body including two conductive members, a resin body, and a fiber member placed inside the resin body, and a light-emitting element. The resin body includes an isolation section located between the two conductive members, and includes a pair of sandwiching portions sandwiching the isolation section. The fiber member has a length which is greater than a distance between the two conductive members, and is located at least in an adjoining region of at least one of the pair of sandwiching portions, the adjoining region adjoining the isolation section. In the adjoining region, the fiber member extends in a direction which is non-orthogonal to a direction in which that the pair of sandwiching portions extend.
    Type: Application
    Filed: December 29, 2020
    Publication date: April 22, 2021
    Applicant: NICHIA CORPORATION
    Inventor: Yukitoshi MARUTANI
  • Publication number: 20210119094
    Abstract: A semiconductor light emitting element includes a semiconductor layered body including an n-side semiconductor layer and a p-side semiconductor layer disposed above the n-side semiconductor layer, an insulating film defining a plurality of first n-side openings on the n-side semiconductor layer in an inner region and a plurality of second n-side openings on an outer peripheral region of the n-side semiconductor layer, an n-electrode disposed extending over the insulating film and the outer peripheral region of the n-side semiconductor layer and including: a plurality of first n-contact portions, each electrically connected with the n-side semiconductor layer through a respective one of the first n-side openings, and a plurality of second n-contact portions, each electrically connected with the n-side semiconductor layer through a respective one of the second n-side openings, at the outer peripheral region of the n-side semiconductor layer.
    Type: Application
    Filed: December 8, 2020
    Publication date: April 22, 2021
    Applicant: NICHIA CORPORATION
    Inventors: Yasuhiro MIKI, Koichi TAKENAGA