Patents by Inventor Hiroaki Ukawa
Hiroaki Ukawa 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).
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Patent number: 11735697Abstract: A light-emitting device includes: a base member including: a first lead, a second lead, and a securing member securing the first and second leads; a light-emitting element mounted on an upper surface of the base member; a frame, a part of which is disposed on the upper surface of the base member to surround the light-emitting element; a first member covering at least a portion of an upper surface of the securing member that is exposed at an outer peripheral side of the frame in a top view, the first member being arranged intermittently under the frame and containing a reflective material; and a second member covering the light-emitting element, the frame, and the first member. The frame has a first region on which the first member is arranged and a second region on which the first member is not arranged, the first and second regions having different heights.Type: GrantFiled: March 31, 2022Date of Patent: August 22, 2023Assignee: NICHIA CORPORATIONInventors: Hiroaki Ukawa, Ryuichi Nakagami, Ryuji Muranaka
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Patent number: 11677054Abstract: A light-emitting device includes: a base member; a base body formed on an upper surface of the base member, the base body including a wiring layer; a light-emitting element mounted on an upper surface of the base body, wherein the light-emitting element includes an element-substrate, and a semiconductor layer located on the element-substrate; a resin frame located on the upper surface of the base body; and a first resin located inside the resin frame to cover a part of side surfaces of the light-emitting element, a part of inner side surface of the resin frame, and the upper surface of the base body. The first resin includes: a reflective material layer that contains a reflective material, and a resin layer that is located on an upper surface of the reflective material layer and does not contain the reflective material.Type: GrantFiled: October 29, 2021Date of Patent: June 13, 2023Assignee: NICHIA CORPORATIONInventors: Hiroaki Ukawa, Ryuichi Nakagami, Ryuji Muranaka
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Publication number: 20220262997Abstract: A method of manufacturing a light-emitting device, including: disposing a light-emitting part on a first electrically conductive wiring, and electrically connecting the light-emitting part with the first electrically conductive wiring and with a second electrically conductive wiring via wires; providing a mask member including a mask part including a first covering part to be located above the light-emitting part, and a second covering part connected to the first part and to be located around lateral sides of the light-emitting part, the second covering part defining grooves to allow the wires to pass through; disposing the mask member on the electrically conductive wiring; disposing a resin material to at least partially cover the mask member, the first electrically conductive wiring, and the second electrically conductive wiring; and removing the mask member to obtain a resin member having lateral walls surrounding the light-emitting part.Type: ApplicationFiled: February 16, 2022Publication date: August 18, 2022Inventors: Hiroaki UKAWA, Noriaki AKITA
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Publication number: 20220223763Abstract: A light-emitting device includes: a base member including: a first lead, a second lead, and a securing member securing the first and second leads; a light-emitting element mounted on an upper surface of the base member; a frame, a part of which is disposed on the upper surface of the base member to surround the light-emitting element; a first member covering at least a portion of an upper surface of the securing member that is exposed at an outer peripheral side of the frame in a top view, the first member being arranged intermittently under the frame and containing a reflective material; and a second member covering the light-emitting element, the frame, and the first member. The frame has a first region on which the first member is arranged and a second region on which the first member is not arranged, the first and second regions having different heights.Type: ApplicationFiled: March 31, 2022Publication date: July 14, 2022Applicant: NICHIA CORPORATIONInventors: Hiroaki UKAWA, Ryuichi NAKAGAMI, Ryuji MURANAKA
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Patent number: 11367821Abstract: A light emitting device includes: a base member including: a first lead, a second lead, and a supporting member holding the first lead and the second lead while electrically separating the first lead and the second lead from each other; a light emitting element located on the first lead; a resin frame located on the upper surface of the base member; a first resin part surrounded by the resin frame and covering the light emitting element; and a second resin part covering the resin frame and the first resin part. The first lead includes a main part having a plurality of projecting parts disposed at a lateral surface between an upper surface and a lower surface of the main part. The plurality of projecting parts overlap with the resin frame in a plan view.Type: GrantFiled: July 21, 2020Date of Patent: June 21, 2022Assignee: NICHIA CORPORATIONInventors: Hiroaki Ukawa, Ryuichi Nakagami
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Patent number: 11322658Abstract: A light-emitting device includes a base member including a first lead, a second lead, and a securing member securing the first lead and the second lead, a light-emitting element mounted on an upper surface of the base member, a frame disposed on the upper surface of the base member to surround the light-emitting element, a first member covering at least a portion of an upper surface of the securing member exposed at an outer peripheral side of the frame in a top view, the first member being in contact with an outer lateral surface of the frame and containing a reflective material, and a second member covering the light-emitting element, the frame, and the first member. The first member has an inclined region in a cross-sectional view. A maximum height of the inclined region is less than a height of an upper end of the frame.Type: GrantFiled: January 29, 2020Date of Patent: May 3, 2022Assignee: NICHIA CORPORATIONInventors: Hiroaki Ukawa, Ryuichi Nakagami, Ryuji Muranaka
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Patent number: 11315913Abstract: A light emitting device includes: a base comprising a first lead, a second lead, and a supporting member; a light emitting element mounted on the first lead; a protection element mounted on the second lead; a wire including a first end and a second end, wherein the first end is connected to an upper surface of the first lead, and the second end is connected to a first terminal electrode of the protection element; a resin frame located on an upper surface of the base, wherein the resin frame covers at least part of the protection element and surrounds the light emitting element and the first end of the wire; a first resin member surrounded by the resin frame and covering the light emitting element and the first end of the wire; and a second resin member covering the resin frame and the first resin member.Type: GrantFiled: August 20, 2019Date of Patent: April 26, 2022Assignee: NICHIA CORPORATIONInventors: Hiroaki Ukawa, Yusuke Hayashi
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Publication number: 20220059742Abstract: A light-emitting device includes: a base member; a base body formed on an upper surface of the base member, the base body including a wiring layer; a light-emitting element mounted on an upper surface of the base body, wherein the light-emitting element includes an element-substrate, and a semiconductor layer located on the element-substrate; a resin frame located on the upper surface of the base body; and a first resin located inside the resin frame to cover a part of side surfaces of the light-emitting element, a part of inner side surface of the resin frame, and the upper surface of the base body. The first resin includes: a reflective material layer that contains a reflective material, and a resin layer that is located on an upper surface of the reflective material layer and does not contain the reflective material.Type: ApplicationFiled: October 29, 2021Publication date: February 24, 2022Applicant: NICHIA CORPORATIONInventors: Hiroaki UKAWA, Ryuichi NAKAGAMI, Ryuji MURANAKA
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Patent number: 11233184Abstract: A light-emitting device includes: a light-emitting element; a base including a first lead having an element disposal portion and a first wire bonding portion, a second lead having a second wire bonding portion and a fixing member; a frame provided on a upper surface of the base; an Ag plating layer covering an upper surface of the element disposal portion; an Au plating layer covering at least an upper surface of the first wire bonding portion and at least an upper surface of the second wire bonding portion; a first wire; and a second wire. The Ag plating layer is disposed apart inwardly from at least a part of an outer circumference of an end portion of the element disposal portion, and the frame body is provided at a position that the frame body covers the Ag plating layer, the first wire bonding portion, and the second wire bonding portion.Type: GrantFiled: March 31, 2020Date of Patent: January 25, 2022Assignee: NICHIA CORPORATIONInventors: Hiroaki Ukawa, Ryuichi Nakagami, Ryuji Muranaka
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Patent number: 11189764Abstract: A light-emitting device includes: a base body comprising a resin member, a first lead, and a second lead, wherein the first lead and the second lead are supported by the resin member; a light-emitting element mounted on an upper surface of the base body; a resin frame located on the upper surface of the base body, surrounding the light-emitting element; and a first resin located inside the resin frame to cover a part of side surfaces of the light-emitting element, a part of an inner side surface of the resin frame, and the upper surface of the base body, wherein the first resin includes: a reflection material layer that contains a reflection material, and a resin layer that is located on an upper surface of the reflective material layer and does not contain the reflective material.Type: GrantFiled: November 19, 2019Date of Patent: November 30, 2021Assignee: NICHIA CORPORATIONInventors: Hiroaki Ukawa, Ryuichi Nakagami, Ryuji Muranaka
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Publication number: 20210343917Abstract: A light emitting device includes: a base member including: a first lead, a second lead, and resin member supporting the first lead and the second lead, wherein each of a surface of the first lead that includes a first surface, a surface of the second lead, and a surface of the resin member that includes a second surface are positioned at an upper surface of the base member; a light emitting element located at the surface of the first lead; a resin frame located at the upper surface of the base member, where the first surface and at least a portion of the second surface are exposed inward of the resin frame; and a reflective member covering at least a portion of the second surface. Projections are located on the upper surface of the resin member that forms a portion of the upper surface of the base member.Type: ApplicationFiled: July 14, 2021Publication date: November 4, 2021Applicant: NICHIA CORPORATIONInventors: Hiroaki UKAWA, Ryo IWASA
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Patent number: 11094676Abstract: A light-emitting device includes: a first light source including a first light-emitting element having a peak emission wavelength in a range of 430 nm to 480 nm; a second light source including a second light-emitting element having a peak emission wavelength in a range of 430 nm to 480 nm; a third light source; and an encapsulant containing a phosphor. In a 1931 CIE chromaticity diagram, the light-emitting device has: a first chromaticity point when only the first light source is operated, a second chromaticity point different from the first chromaticity point when only the second light source is operated, and a third chromaticity point when only the third light source is operated, the third chromaticity point having a y-value larger than a y-value on a straight line passing the first chromaticity point and the second chromaticity point.Type: GrantFiled: October 9, 2019Date of Patent: August 17, 2021Assignee: NICHIA CORPORATIONInventors: Hiroaki Ukawa, Atsushi Bando
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Patent number: 11094864Abstract: A light emitting device includes: a base member including: a first lead, a second lead, and a resin member supporting the first lead and the second lead, wherein each of a surface of the first lead that includes a first surface, a surface of the second lead, and a surface of the resin member that includes a second surface are positioned at an upper surface of the base member; a light emitting element located at the surface of the first lead that forms a portion of the upper surface of the base member; a resin frame located at the upper surface of the base member so as to surround the light emitting element, and configured such that the first surface and at least a portion of the second surface are exposed inward of the resin frame; and a reflective member covering at least a portion of the second surface.Type: GrantFiled: March 26, 2019Date of Patent: August 17, 2021Assignee: NICHIA CORPORATIONInventors: Hiroaki Ukawa, Ryo Iwasa
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Patent number: 10873015Abstract: A light emitting device includes a plurality of light emitting elements and a package. The package includes two metal parts on which the plurality of light emitting elements are disposed, and a resin body securing the two metal parts. The resin body has four sides and four connecting parts alternately connected to one another in a top view. Two subsequent sides are perpendicular to each other. Each of the two metal parts includes a die-pad on which one or more of the plurality of light emitting elements are disposed, and two extending portions extending from the die-pad. An end portion of each of the two extending portions is extended laterally outward from a respective one of the connecting parts of the resin body, and the end portion of each of the two extending portions is located inward of virtual extension lines of corresponding two sides of the resin body.Type: GrantFiled: February 28, 2019Date of Patent: December 22, 2020Assignee: NICHIA CORPORATIONInventors: Hiroaki Ukawa, Ryo Iwasa
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Publication number: 20200350479Abstract: A light emitting device includes: a base member including: a first lead, a second lead, and a supporting member holding the first lead and the second lead while electrically separating the first lead and the second lead from each other; a light emitting element located on the first lead; a resin frame located on the upper surface of the base member; a first resin part surrounded by the resin frame and covering the light emitting element; and a second resin part covering the resin frame and the first resin part. The first lead includes a main part having a plurality of projecting parts disposed at a lateral surface between an upper surface and a lower surface of the main part. The plurality of projecting parts overlap with the resin frame in a plan view.Type: ApplicationFiled: July 21, 2020Publication date: November 5, 2020Applicant: NICHIA CORPORATIONInventors: Hiroaki UKAWA, Ryuichi NAKAGAMI
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Patent number: 10806809Abstract: A light-emitting device includes a light-emitting element with a peak emission wavelength in a range of 400 nm to 410 nm and a fluorescent member that contains a first phosphor with a peak emission wavelength in a range of 440 nm to 470 nm containing a Eu-activated alkaline-earth phosphate that contains Cl in a composition, a second phosphor with a peak emission wavelength in a range of 500 nm to 530 nm containing a Eu-activated halogen-containing alkaline-earth silicate, a third phosphor with a peak emission wavelength in a range of 530 nm to 600 nm containing a Ce-activated rare-earth aluminate, and a fourth phosphor with a peak emission wavelength in a range of 600 nm to 660 nm containing a Eu-activated silicon nitride containing Al and at least one of Sr and Ca in a composition.Type: GrantFiled: October 30, 2019Date of Patent: October 20, 2020Assignee: NICHIA CORPORATIONInventors: Hiroaki Ukawa, Ryuichi Nakagami
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Publication number: 20200313058Abstract: A light-emitting device includes: a light-emitting element; a base including a first lead having an element disposal portion and a first wire bonding portion, a second lead having a second wire bonding portion and a fixing member; a frame provided on a upper surface of the base; an Ag plating layer covering an upper surface of the element disposal portion; an Au plating layer covering at least an upper surface of the first wire bonding portion and at least an upper surface of the second wire bonding portion; a first wire; and a second wire. The Ag plating layer is disposed apart inwardly from at least a part of an outer circumference of an end portion of the element disposal portion, and the frame body is provided at a position that the frame body covers the Ag plating layer, the first wire bonding portion, and the second wire bonding portion.Type: ApplicationFiled: March 31, 2020Publication date: October 1, 2020Applicant: NICHIA CORPORATIONInventors: Hiroaki UKAWA, Ryuichi NAKAGAMI, Ryuji MURANAKA
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Patent number: 10756246Abstract: A light emitting device includes: a base member including: a first lead, a second lead, and a supporting member, the base member having an upper surface including a first surface, which is a surface of the first lead, a second surface, which is a surface of the second lead, and a third surface, which is a surface of the supporting member; a light emitting element located on the first surface; a protective element located on the second surface; a wire having a first end connected to the first surface, and a second end connected to a terminal electrode of the protective element; a resin frame located on the upper surface of the base member; a first resin part surrounded by the resin frame and covering the light emitting element and the first end of the wire; and a second resin part covering the resin frame and the first resin part.Type: GrantFiled: October 4, 2018Date of Patent: August 25, 2020Assignee: NICHIA CORPORATIONInventors: Hiroaki Ukawa, Ryuichi Nakagami
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Publication number: 20200251617Abstract: A light-emitting device includes a base member including a first lead, a second lead, and a securing member securing the first lead and the second lead, a light-emitting element mounted on an upper surface of the base member, a frame disposed on the upper surface of the base member to surround the light-emitting element, a first member covering at least a portion of an upper surface of the securing member exposed at an outer peripheral side of the frame in a top view, the first member being in contact with an outer lateral surface of the frame and containing a reflective material, and a second member covering the light-emitting element, the frame, and the first member. The first member has an inclined region in a cross-sectional view. A maximum height of the inclined region is less than a height of an upper end of the frame.Type: ApplicationFiled: January 29, 2020Publication date: August 6, 2020Applicant: NICHIA CORPORATIONInventors: Hiroaki UKAWA, Ryuichi NAKAGAMI, Ryuji MURANAKA
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Publication number: 20200168776Abstract: A light-emitting device includes: a base body comprising a resin member, a first lead, and a second lead, wherein the first lead and the second lead are supported by the resin member; a light-emitting element mounted on an upper surface of the base body; a resin frame located on the upper surface of the base body, surrounding the light-emitting element; and a first resin located inside the resin frame to cover a part of side surfaces of the light-emitting element, a part of an inner side surface of the resin frame, and the upper surface of the base body, wherein the first resin includes: a reflection material layer that contains a reflection material, and a resin layer that is located on an upper surface of the reflective material layer and does not contain the reflective material.Type: ApplicationFiled: November 19, 2019Publication date: May 28, 2020Applicant: NICHIA CORPORATIONInventors: Hiroaki UKAWA, Ryuichi NAKAGAMI, Ryuji MURANAKA