Patents by Inventor Masatoshi Nakagaki
Masatoshi Nakagaki 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: 11935806Abstract: A semiconductor device includes: a semiconductor element; a submount on which the semiconductor element is mounted, wherein the submount has a first surface on which the semiconductor element is mounted, a second surface located on a side opposite the first surface, and a lateral surface located between the first surface and the second surface, and wherein the submount comprises: a groove located at the second surface, a heat dissipation portion located at the second surface, and an electrode pattern located at the first surface; a package substrate on which the submount is mounted; a first joint member that physically joins the heat dissipation portion to the package substrate; and a connection portion located on the side surface, wherein the connection portion electrically connects the electrode pattern and the package substrate, and the connection portion comprises a second joint member.Type: GrantFiled: July 6, 2021Date of Patent: March 19, 2024Assignee: NICHIA CORPORATIONInventors: Tadaaki Miyata, Yoshihiro Kimura, Masatoshi Nakagaki
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Patent number: 11843220Abstract: A light emitting device includes: a first semiconductor laser element; a base portion including: a bottom portion including a first upper surface on which the first semiconductor laser element is disposed, and a frame portion surrounding the first semiconductor laser element, the frame portion including a second upper surface positioned above the first upper surface and a support portion positioned between the first upper surface and the second upper surface, the a support portion having a support area; a light reflecting member having a flat plate-shaped and contacting the support area, the light reflecting member being configured to reflect light from the first semiconductor laser element; and a lid portion bonded to the second upper surface.Type: GrantFiled: April 12, 2022Date of Patent: December 12, 2023Assignee: NICHIA CORPORATIONInventors: Masatoshi Nakagaki, Kazuma Kozuru
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Publication number: 20230369824Abstract: A light emitting device includes first and second semiconductor laser elements, first and second light-reflective members, and a basal part. The light emitted from the first semiconductor laser element irradiates a first light-reflective surface of the first light-reflective member at a first position. The light emitted from the second semiconductor laser element irradiates a second light-reflective surface of the second light-reflective member at a second position. A height of the first position is different from a height of the second position. With respect to a virtual axis extending along the prescribed direction, the first position and the second position have the same coordinates. A mounting position of the first light-reflective member and a mounting position of the second light-reflective member are different with respect to the prescribed direction.Type: ApplicationFiled: July 24, 2023Publication date: November 16, 2023Inventors: Masatoshi NAKAGAKI, Soichiro MIURA
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Patent number: 11784461Abstract: A light emitting device includes first to third semiconductor laser elements. Each of the semiconductor laser elements includes at least two emitters, and configured to emit red-color light, green-color light, or blue-color light. The mount member includes first to third conduction parts, each including a plurality of metal films including mounting regions that are aligned in a predetermined direction. The first to third semiconductor laser elements are respectively mounted on the first to third conduction parts of the mount member in a junction-down configuration.Type: GrantFiled: March 17, 2022Date of Patent: October 10, 2023Assignee: NICHIA CORPORATIONInventors: Masatoshi Nakagaki, Soichiro Miura
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Patent number: 11749961Abstract: A light emitting device includes first to third semiconductor laser elements. Each of the semiconductor laser elements includes at least two emitters, and configured to emit red-color light, green-color light, or blue-color light. The mount member includes first to third conduction parts, each including a plurality of metal films including mounting regions that are aligned in a predetermined direction. The first to third semiconductor laser elements are respectively mounted on the first to third conduction parts of the mount member in a junction-down configuration.Type: GrantFiled: March 17, 2022Date of Patent: September 5, 2023Assignee: NICHIA CORPORATIONInventors: Masatoshi Nakagaki, Soichiro Miura
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Publication number: 20220416501Abstract: A laser light source includes: a submount having an upper surface; a semiconductor laser element located on the upper surface of the submount and having an end surface from which a laser beam is emitted; a lens facing the end surface of the semiconductor laser element; and a support member located on the upper surface of the submount and supporting the lens. The lens includes a collimating portion configured to collimate the laser beam emitted from the semiconductor laser element. The support member includes: a first portion and a second portion arranged at a lateral side of the submount; and a third portion that connects the first portion and the second portion and overlaps a portion of the semiconductor laser element in a plan view. The lens is supported by the first portion and the second portion via a bonding member.Type: ApplicationFiled: June 23, 2022Publication date: December 29, 2022Applicant: NICHIA CORPORATIONInventors: Hidenori MATSUO, Masatoshi NAKAGAKI, Masaki OMORI
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Publication number: 20220416500Abstract: A laser package includes: a substrate having an upper surface; a first laser element disposed on the substrate and configured to emit light in a first direction; a first optical member having a lower surface bonded to the upper surface of the substrate, a reflecting surface inclined relative to the lower surface and configured to reflect the light, and an upper surface connected to the reflecting surface, the upper surface of the first optical member being located farther in the first direction than the reflecting surface; and a bonding material disposed on the upper surface of the substrate. The first optical member is bonded to the substrate via the bonding material. In a top view, a portion of the bonding material protrudes from three sides of the upper surface of the first optical member.Type: ApplicationFiled: August 31, 2022Publication date: December 29, 2022Applicant: NICHIA CORPORATIONInventors: Masatoshi NAKAGAKI, Kazuma KOZURU, Eiichiro OKAHISA
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Publication number: 20220376466Abstract: A light emitting device includes: at least one semiconductor laser element; a submount; and a base portion having a mounting surface. The submount includes: a first lateral face being located at a side of an exiting lateral surface of the semiconductor laser element, the first lateral face intersecting the upper face of the submount, and the first lateral face being above and separated from the mounting surface; a lower face being set back inside of the submount relative to an edge at which the upper face and the first lateral face intersect in a top view; and a second lateral face being located at the same side as the first lateral face and intersecting the lower face. A portion of a bonding material protrudes from the lower face and extends outward of an edge at which the lower face and the second lateral face intersect.Type: ApplicationFiled: May 23, 2022Publication date: November 24, 2022Applicant: NICHIA CORPORATIONInventors: Masatoshi NAKAGAKI, Tadaaki MIYATA, Yoshihiro KIMURA
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Publication number: 20220344896Abstract: A light-emitting device includes first and second light-emitting elements, upper submounts, and a lower submount. The upper submounts include a first submount having a first upper surface and a first lateral surface located on a same side as an emission end surface of the first light-emitting element, and a second submount having a second upper surface and a second lateral surface located on a same side as an emission end surface of the second light-emitting element. In a top plan view, the first lateral surface is located forward relative to the second lateral surface, and the emission end surface of the first light-emitting element is located forward relative to the emission end surface of the second light-emitting element. At least a portion of the first lateral surface is protruded forward relative to an edge along which an upper surface and a lateral surface of the lower submount meet.Type: ApplicationFiled: April 22, 2022Publication date: October 27, 2022Inventors: Kazuya ETO, Soichiro MIURA, Takuya HASHIMOTO, Masatoshi NAKAGAKI
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Publication number: 20220239060Abstract: A light emitting device includes: a first semiconductor laser element; a base portion including: a bottom portion including a first upper surface on which the first semiconductor laser element is disposed, and a frame portion surrounding the first semiconductor laser element, the frame portion including a second upper surface positioned above the first upper surface and a support portion positioned between the first upper surface and the second upper surface, the a support portion having a support area; a light reflecting member having a flat plate-shaped and contacting the support area, the light reflecting member being configured to reflect light from the first semiconductor laser element; and a lid portion bonded to the second upper surface.Type: ApplicationFiled: April 12, 2022Publication date: July 28, 2022Applicant: NICHIA CORPORATIONInventors: Masatoshi NAKAGAKI, Kazuma KOZURU
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Publication number: 20220209497Abstract: A light emitting device includes first to third semiconductor laser elements. Each of the semiconductor laser elements includes at least two emitters, and configured to emit red-color light, green-color light, or blue-color light. The mount member includes first to third conduction parts, each including a plurality of metal films including mounting regions that are aligned in a predetermined direction. The first to third semiconductor laser elements are respectively mounted on the first to third conduction parts of the mount member in a junction-down configuration.Type: ApplicationFiled: March 17, 2022Publication date: June 30, 2022Inventors: Masatoshi NAKAGAKI, Soichiro MIURA
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Patent number: 11336075Abstract: A light emitting device comprises: a semiconductor laser element; a base portion comprising: a bottom portion on which the semiconductor laser element is located, and a frame portion comprising a step and surrounding the semiconductor laser element; and a light reflecting member disposed on the bottom portion of the base portion so as to lean against the step, the light reflecting member being configured to reflect light from the semiconductor laser element.Type: GrantFiled: January 15, 2020Date of Patent: May 17, 2022Assignee: NICHIA CORPORATIONInventors: Masatoshi Nakagaki, Kazuma Kozuru
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Patent number: 11309681Abstract: A mount member includes first and second conduction parts. In the first conduction part, as seen in a top view, a length in a first direction parallel to an emission end surface of a first semiconductor laser element is smaller than a length in a second direction perpendicular to the emission end surface, and, in relation to the second direction, a first wiring region extends from a first mounting region in a direction from the light emission end surface to an opposite end surface. In relation to the second direction, a second conduction part extends further than the first conduction part in a direction from an emission end surface to an opposite end surface of a second semiconductor laser element, and from a region where the second conduction part extends further than the first conduction part, the second conduction part extends toward the first conduction part in the first direction.Type: GrantFiled: January 28, 2020Date of Patent: April 19, 2022Assignee: NICHIA CORPORATIONInventors: Masatoshi Nakagaki, Soichiro Miura
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Publication number: 20220102332Abstract: A light-emitting device includes first and second light-emitting elements, first and second support members bonded to the first and second light-emitting elements, respectively, first and second protective elements, and a plurality of wirings including: a first wiring with one end being bonded to the first light-emitting element or the first support member; a second wiring with one end being bonded to the first light-emitting element or the first support member and the other end being bonded to the second light-emitting element or the second support member; a third wiring with one end being bonded to the first protective element or a support member equipped with the first protective element; and a fourth wiring with one end being bonded to the second protective element or a support member equipped with the second protective element.Type: ApplicationFiled: September 29, 2021Publication date: March 31, 2022Inventors: Takeshi IMAI, Masatoshi NAKAGAKI
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Publication number: 20220013429Abstract: A semiconductor device includes: a semiconductor element; a submount on which the semiconductor element is mounted, wherein the submount has a first surface on which the semiconductor element is mounted, a second surface located on a side opposite the first surface, and a lateral surface located between the first surface and the second surface, and wherein the submount comprises: a groove located at the second surface, a heat dissipation portion located at the second surface, and an electrode pattern located at the first surface; a package substrate on which the submount is mounted; a first joint member that physically joins the heat dissipation portion to the package substrate; and a connection portion located on the side surface, wherein the connection portion electrically connects the electrode pattern and the package substrate, and the connection portion comprises a second joint member.Type: ApplicationFiled: July 6, 2021Publication date: January 13, 2022Applicant: NICHIA CORPORATIONInventors: Tadaaki MIYATA, Yoshihiro KIMURA, Masatoshi NAKAGAKI
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Publication number: 20200251881Abstract: A mount member includes first and second conduction parts. In the first conduction part, as seen in a top view, a length in a first direction parallel to an emission end surface of a first semiconductor laser element is smaller than a length in a second direction perpendicular to the emission end surface, and, in relation to the second direction, a first wiring region extends from a first mounting region in a direction from the light emission end surface to an opposite end surface. In relation to the second direction, a second conduction part extends further than the first conduction part in a direction from an emission end surface to an opposite end surface of a second semiconductor laser element, and from a region where the second conduction part extends further than the first conduction part, the second conduction part extends toward the first conduction part in the first direction.Type: ApplicationFiled: January 28, 2020Publication date: August 6, 2020Inventors: Masatoshi NAKAGAKI, Soichiro MIURA
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Publication number: 20200227888Abstract: A light emitting device comprises: a semiconductor laser element; a base portion comprising: a bottom portion on which the semiconductor laser element is located, and a frame portion comprising a step and surrounding the semiconductor laser element; and a light reflecting member disposed on the bottom portion of the base portion so as to lean against the step, the light reflecting member being configured to reflect light from the semiconductor laser element.Type: ApplicationFiled: January 15, 2020Publication date: July 16, 2020Applicant: NICHIA CORPORATIONInventors: Masatoshi NAKAGAKI, Kazuma KOZURU
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Patent number: 10424555Abstract: A mounting component includes a main body and a metal layer. The main body has a first main surface and a second main surface. The metal layer is arranged on the first main surface of the main body. The metal layer includes at least one concave recognition mark having an inclined surface that is inclined with respect to a main surface of the metal layer.Type: GrantFiled: June 26, 2018Date of Patent: September 24, 2019Assignee: NICHIA CORPORATIONInventor: Masatoshi Nakagaki
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Publication number: 20190006310Abstract: A mounting component includes a main body and a metal layer. The main body has a first main surface and a second main surface. The metal layer is arranged on the first main sur face of the main body. The metal layer includes at least one concave recognition mark having an inclined surface that is inclined with respect to a main surface of the metal layer.Type: ApplicationFiled: June 26, 2018Publication date: January 3, 2019Inventor: Masatoshi NAKAGAKI
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Publication number: 20180183205Abstract: A method of manufacturing a laser package includes: providing a plurality of laser devices, each including: a submount, and an edge-emitting semiconductor laser element disposed on the submount; providing one or more optical members; providing a substrate; disposing a first bonding material and a second bonding material on the substrate; placing the plurality of laser devices on the upper surface of the substrate via the first bonding material, and placing the one or more optical members on the upper surface of the substrate via the second bonding material; and collectively heating the plurality of laser devices and the one or more optical members on the substrate without pressing the plurality of laser devices and the one or more optical members onto the substrate, so as to bond the laser devices and the one or more optical members to the substrate via the first and second bonding materials.Type: ApplicationFiled: December 26, 2017Publication date: June 28, 2018Applicant: NICHIA CORPORATIONInventors: Masatoshi NAKAGAKI, Kazuma KOZURU, Eiichiro OKAHISA