Patents Assigned to Nichia Corporation
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Publication number: 20250151485Abstract: A light-emitting module includes: a first light source; and a second light source disposed separated from the first light source in a top view. The first light source includes: a plurality of light-emitting parts including a first light-emitting part and a plurality of second light-emitting parts arranged around the first light-emitting part, and a light-shielding member disposed between the plurality of light-emitting parts such that light-emitting surfaces of the plurality of respective light-emitting parts are exposed from the light-shielding member. The second light source comprises a third light-emitting part electrically connected in parallel with the first light-emitting part. Light emitted from the first light-emitting part and light emitted from the third light-emitting part at least partially overlap each other on an irradiation surface.Type: ApplicationFiled: October 30, 2024Publication date: May 8, 2025Applicant: NICHIA CORPORATIONInventor: Norimasa YOSHIDA
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Publication number: 20250151471Abstract: A method of manufacturing a light emitting device includes: preparing a light emitting element comprising an external terminal having a first portion located on a semiconductor structure side and a second portion disposed on the first portion, wherein an area of the second portion is less than an area of the first portion; preparing a substrate having a wiring part; bonding the light emitting element and the wiring part by bringing the second portion of the external terminal into contact with the wiring part; and subsequent to bonding the light emitting element and the wiring part, forming plating continuously on lateral faces of the first and second portions, wherein a thickness of the second portion is 5 ?m at most, and wherein the plating is formed such that the plating formed on the wiring part is in contact with the plating formed on the first portion.Type: ApplicationFiled: October 2, 2024Publication date: May 8, 2025Applicant: NICHIA CORPORATIONInventors: Yasuhiro MIKI, Hirofumi KAWAGUCHI
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Publication number: 20250145887Abstract: A sintered body contains a fluorescent material being at least one selected from the group consisting of a nitride fluorescent material having a composition of formula (I) and an ?-SiAlON fluorescent material having a composition of formula (II), and emits light having a color tone in an area A1 surrounded by lines connecting a point 1a (x=0.549, y=0.425), a point 2a (x=0.562, y=0.438), a point 3a (x=0.589, y=0.411), and a point 4a (x=0.576, y=0.407) in the chromaticity diagram of the CIE 1931 color system upon irradiation with excitation light, wherein, upon irradiation with excitation light, the light emitted from the sintered body has an emission spectrum in which an integral value ratio Z2/Z1 as described in the disclosure is 0.005 or more.Type: ApplicationFiled: November 4, 2024Publication date: May 8, 2025Applicant: NICHIA CORPORATIONInventors: Teruhiko NOGUCHI, Toshiyuki HIRAI, Shimpei KINOSHITA
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Publication number: 20250149240Abstract: A method of producing a compound for bonded magnets, the method including: heat-curing a thermosetting resin and a curing agent having a ratio of the number of reactive groups of the curing agent to the number of reactive groups of the thermosetting resin of at least 2 but not higher than 11 to obtain an additive for bonded magnets; and kneading the additive for bonded magnets, magnetic powder, and a thermoplastic resin to obtain a compound for bonded magnets in which a filling ratio of the magnetic powder is at least 91.5% by mass.Type: ApplicationFiled: January 8, 2025Publication date: May 8, 2025Applicant: NICHIA CORPORATIONInventors: Satoshi YAMANAKA, Takayuki YANO, Shuichi TADA, Masahiro ABE, Kenta IWAI
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Patent number: 12295189Abstract: A light-emitting device includes a plurality of light-emitting elements, a plurality of light-transmissive members, a covering member, and a plurality of pairs of electrodes. The light-emitting elements are arranged in a plurality of columns and a plurality of rows. The covering member integrally covers lateral surfaces of the light-emitting elements. The pairs of electrodes are arranged at a lower surface of the light-emitting device. The pairs of electrodes include first and second pairs of electrodes aligned along a column direction so that the electrodes of the same polarity among the first and second pairs of electrodes are aligned along the column direction, and a third pair of electrodes arranged adjacent to the first pair of electrodes in a row direction so that one of the third pair of electrodes and one of the first pair of electrodes facing each other in the row direction have the same polarity.Type: GrantFiled: February 24, 2023Date of Patent: May 6, 2025Assignee: NICHIA CORPORATIONInventors: Yuta Oka, Nami Abe
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Patent number: 12292210Abstract: An object is to provide a dehumidifying member having a high tensile strength. The object can be achieved by a dehumidifying member including a honeycomb structure. The honeycomb structure includes a planar base material and a corrugated base material, a contact part where a wave top portion of the corrugated base material and the planar base material are in contact with each other, and an air hole. The contact part includes an adhesion part adhered by an adhesive agent and silica gel formed on the air hole side from the contact part. The component forming the adhesive agent differs from the component of the silica gel formed on the air hole side from the adhesion part.Type: GrantFiled: May 18, 2021Date of Patent: May 6, 2025Assignee: NICHIAS CORPORATIONInventors: Kazuki Yamana, Masaaki Koubara, Yuuma Tomitsuka
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Patent number: 12292092Abstract: A novel disc brake shim and a disc brake that can effectively suppress vibration and squeal are provided. The disc brake shim that is formed of a multilayer structure with three layers or more including at least a base material layer formed of a metal sheet, and a foamed rubber layer that is laminated on a main surface on one side of the base material layer, wherein the foamed rubber layer is an intermediate layer of the multilayer structure, and the disc brake including pad materials on both sides in an axial direction of a disc rotor, and shims on opposite sides from the disc rotor, of the pad materials adjacently, wherein each of the shims is the disc brake shim according to the present invention.Type: GrantFiled: June 16, 2020Date of Patent: May 6, 2025Assignee: NICHIAS CORPORATIONInventors: Junichi Kondoh, Toshiharu Anegawa, Yuki Soeda, Tadashi Arai
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Patent number: 12292591Abstract: A lighting device includes a light source, a lens receiving light from the light source, and a reflector including multiple first reflecting regions, wherein each first reflecting region reflects light from the lens in a first direction crossing an optical axis of light incident on the lens. The first reflecting regions are arranged with steps interposed therebetween so that the regions further toward a light-emitting side of the reflector in the first direction have greater distances from the lens in a second direction in which the optical axis extends. A light distribution angle of light from a first part of the lens further toward the light-emitting side than the optical axis in the first direction is less than a light distribution angle of light from a second part of the lens further toward a side opposite to the light-emitting side than the optical axis in the first direction.Type: GrantFiled: February 22, 2022Date of Patent: May 6, 2025Assignee: Nichia CorporationInventors: Masaru Kato, Hiroshi Miyairi
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Patent number: 12292651Abstract: A planar light source includes: a plurality of light sources disposed two-dimensionally, each including: a light-emitting element, a light-transmissive member covering the light-emitting element, and a light adjustment member disposed on an upper surface of the light-transmissive member and located above the light-emitting element. The plurality of light sources include, in a top view, a plurality of central light sources disposed in a central region, and a plurality of peripheral light sources disposed in a peripheral region located outward of the central region. The plurality of peripheral light sources include a first light source in which a light transmittance of the light adjustment member is higher than a light transmittance of the light adjustment members of the central light sources.Type: GrantFiled: March 28, 2024Date of Patent: May 6, 2025Assignee: NICHIA CORPORATIONInventor: Takeshi Tamura
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Patent number: 12292602Abstract: A light source device includes: a substrate having a support face; a plurality of light emitting elements disposed on the support face, the plurality of light emitting elements including a first light emitting element and a second light emitting element, each of which is a vertical-cavity surface-emitting laser element; and a planar lightwave circuit having a light incident face that faces the support face and including a plurality of optical waveguides configured to guide light that has exited from the respective plurality of light emitting elements and entered the light incident face. The planar lightwave circuit is directly or indirectly supported by the plurality of light emitting elements. The substrate includes a first wiring layer electrically connected to the first light emitting element and the second light emitting element.Type: GrantFiled: August 1, 2022Date of Patent: May 6, 2025Assignee: NICHIA CORPORATIONInventor: Tadaaki Miyata
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Patent number: 12294196Abstract: A light emitting device includes: a laser element; a case enclosing the laser element, the case including a light-transmissive region configured to allow light emitted from the laser element to transmit through the light-transmissive region; a first lens configured to collimate or converge light emitted from the laser element; and a second lens that is disposed in the case and spaced apart from the first lens, the second lens located in an optical path between the laser element and the first lens. The second lens is spaced apart from the light-transmissive region such that an open space is located in the case between the light-transmissive region and the second lens.Type: GrantFiled: October 26, 2023Date of Patent: May 6, 2025Assignee: NICHIA CORPORATIONInventors: Soichiro Miura, Ryota Okuno
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Patent number: 12295190Abstract: A light-emitting device includes: a package defining a recess; a light-emitting element disposed on a bottom surface of the recess; and a sealing member disposed in the recess so as to cover the light-emitting element. The sealing member includes a filler-containing layer which contains a filler and covers the light-emitting element, and a light-transmissive layer disposed on the filler-containing layer. The recess is further defined by a lateral surface having a stepped portion between the bottom surface of the recess and an opening of the recess. The light-transmissive layer covers the stepped portion. An upper surface of the light-transmissive layer is downwardly recessed.Type: GrantFiled: August 8, 2022Date of Patent: May 6, 2025Assignee: NICHIA CORPORATIONInventors: Shogo Abe, Keita Shimizu, Takashi Kadota
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Publication number: 20250143023Abstract: A nitride semiconductor light emitting element includes a semiconductor structure including an n-side semiconductor layer, a p-side semiconductor layer, and an active layer disposed between the n-side semiconductor layer and the p-side semiconductor layer, and a p-side electrode disposed on the p-side semiconductor layer. The p-side semiconductor layer includes a first semiconductor part that includes, successively from the p-side electrode side, a first layer contacting the p-side electrode and containing Al and a p-type impurity, a second layer containing a p-type impurity and having a lower Al composition ratio and a lower p-type impurity concentration than those of the first layer, and a third layer containing a p-type impurity and having a higher Al composition ratio and a lower p-type impurity concentration than that of the first layer, and a larger thickness than the thicknesses of the first and second layers.Type: ApplicationFiled: October 21, 2024Publication date: May 1, 2025Applicant: NICHIA CORPORATIONInventor: Nobuyoshi NIKI
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Patent number: 12287113Abstract: Object: A building that enables lighting and air-conditioning to be effectively linked with each other is configured. Resolution means: An air-conditioning device including a connector receiving portion is installed on a ceiling, and the air-conditioning device and a plurality of lighting fixtures disposed around the air-conditioning device are electrically connected to each other with wirings provided for the number of the plurality of lighting fixtures installed around the air-conditioning device. Further, the air-conditioning device supplies power converted into a power voltage for the lighting fixtures to the plurality of electrically connected lighting fixtures. A wiring that passes through the rear of the ceiling is taken out of an opening of a ceiling member, and is connected to the lighting fixtures, so that the lighting fixtures are installed on the ceiling.Type: GrantFiled: December 13, 2019Date of Patent: April 29, 2025Assignee: NICHIA CORPORATIONInventor: Kei Haraguchi
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Patent number: 12289935Abstract: A method for manufacturing a light-emitting element includes: providing a structure body including: a semiconductor structure body having a first surface, a second surface located on a side opposite to the first surface, and a lateral surface that connects the first surface and the second surface, a first insulating film covering the lateral surface of the semiconductor structure body, a second insulation film covering the first surface of the semiconductor structure body and an upper surface of the first insulating film on a first surface side, and a substrate facing the second surface of the semiconductor structure body; forming a mask on a part of the second insulating film located above the first surface of the semiconductor structure body; and removing a part of the second insulating film located around the mask in a top view and exposed from the mask.Type: GrantFiled: December 2, 2022Date of Patent: April 29, 2025Assignee: NICHIA CORPORATIONInventors: Hirofumi Kawaguchi, Takeshi Baba, Taku Yuasa, Kazuki Kumegawa
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Patent number: 12288832Abstract: A method for manufacturing a light-emitting element includes forming a first light-emitting part, forming a tunnel junction part on the first light-emitting part, and forming a second light-emitting part on the tunnel junction part. The step of forming the first light-emitting part includes forming a first layer with a first p-type impurity concentration at a first temperature, and forming a second layer with a second p-type impurity concentration on the first layer. The second p-type impurity concentration is greater than the first p-type impurity concentration. The step of forming the second light-emitting part includes forming a third layer with a third p-type impurity concentration at a second temperature and forming a fourth layer with a fourth p-type impurity concentration on the third layer. The fourth p-type impurity concentration is greater than the third p-type impurity concentration. The second temperature is less than the first temperature.Type: GrantFiled: June 28, 2022Date of Patent: April 29, 2025Assignee: NICHIA CORPORATIONInventor: Ryota Funakoshi
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Patent number: 12287089Abstract: A light emitting device includes one or more light emitting elements and a plurality of fluorescent materials, and emits a first light, a second light, and a third light, wherein the first light has a correlated color temperature between 1,500 K and 3,500 K and a color rendering index R9 of 50 or more, the second light has a correlated color temperature between 3,500 K and 5,500 K and a color rendering index R9 of 50 or more, the third light has values of X and Y coordinates in the chromaticity diagram of the CIE1931 color system smaller than the values of X and Y coordinates at a color temperature of 5,500 K on the black body radiation locus, and a light having a correlated color temperature of 6,500 K has a color rendering index R9 of 50 or more and a melanopic ratio of 1.0 or more.Type: GrantFiled: January 26, 2023Date of Patent: April 29, 2025Assignee: NICHIA CORPORATIONInventors: Kenta Niki, Jun Takahashi
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Publication number: 20250129930Abstract: A light-emitting module includes: a substrate; a light source disposed on the substrate; an electronic component disposed on the substrate and separated from the light source; and a first light-transmissive member including a first lens and a first support, and covering the light source and the electronic component, the first support supporting the first lens and including a light diffusing substance. A light diffusivity of the first support is higher than a light diffusivity of the first lens. The first lens overlaps the light source and the first support overlaps the electronic component in a top view.Type: ApplicationFiled: October 16, 2024Publication date: April 24, 2025Applicant: NICHIA CORPORATIONInventors: Tsuyoshi OKAHISA, Norimasa YOSHIDA
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Publication number: 20250133878Abstract: A light emitting device includes: a resin package comprising a first lead, a second lead, and a resin part; and a light emitting element disposed on the first lead. The resin package has a rectangular shape in top view and comprises a first outer lateral surface, a second outer lateral surface on a side opposite the first outer lateral surface, a third outer lateral surface, and a fourth outer lateral surface on a side opposite the third outer lateral surface. At the first outer lateral surface, the first lead is exposed from the resin part, and the first lead and a portion of the resin part located at a lateral edge of the first lead are substantially coplanar with each other.Type: ApplicationFiled: December 24, 2024Publication date: April 24, 2025Applicant: NICHIA CORPORATIONInventors: Hirofumi ICHIKAWA, Masaki HAYASHI, Shimpei SASAOKA, Tomohide MIKI
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Publication number: 20250133869Abstract: A method for manufacturing a light-emitting device including providing a first structure having a support substrate, a first bonding member on a surface thereof, and light-emitting elements having a first surface in contact with the first bonding member, an opposite second surface, and electrodes on a second surface side. The method includes providing a second structure having a substrate including a base member and terminal portions on a surface thereof, and a second bonding member between the terminal portions and thicker than the terminal portions. The method includes disposing the first structure on the second bonding member such that respective electrodes and respective terminal portions are spaced apart from and facing each other, connecting the respective electrodes and the respective terminal portions, and after the connecting, exposing the first and second bonding members to a solution to remove them to separate off the support substrate from the light-emitting elements.Type: ApplicationFiled: October 16, 2024Publication date: April 24, 2025Applicant: NICHIA CORPORATIONInventor: Hiroki YUU