Patents by Inventor Hiroaki Kageyama
Hiroaki Kageyama 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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Publication number: 20250038036Abstract: A method for manufacturing a light-emitting device includes preparing a stacked body including a substrate and a semiconductor layer on the substrate; and separating the substrate from the semiconductor layer by irradiating the stacked body with a laser light. A first region of the stacked body corresponding to an outer perimeter region of the semiconductor layer and a second region of the stacked body corresponding to a center region of the semiconductor layer are simultaneously irradiated with the laser light during the separating. An irradiation intensity of the laser light at the second region of the stacked body is greater than an irradiation intensity of the laser light at the first region of the stacked body.Type: ApplicationFiled: July 12, 2024Publication date: January 30, 2025Inventor: Hiroaki KAGEYAMA
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Publication number: 20240332247Abstract: A method of manufacturing a light emitting device includes preparing a plurality of first elements including first bonding parts and a wiring substrate including a plurality of second bonding parts. The method further includes placing the first elements on the wiring substrate by bonding the first bonding parts and the second bonding parts under first bonding conditions, and bonding the first bonding parts and the second bonding parts under second bonding conditions by placing a buffer sheet on the first elements and applying pressure on the first elements via the buffer sheet towards the wiring substrate. The bonding conducted under the second bonding conditions is performed multiple times.Type: ApplicationFiled: March 22, 2024Publication date: October 3, 2024Applicant: NICHIA CORPORATIONInventors: Hiroaki KAGEYAMA, Yuka IMADA, Hiroki HANAOKA
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Patent number: 12002917Abstract: A light-emitting element includes: a support substrate; a semiconductor stacked body disposed on the support substrate, the semiconductor stacked body including a first semiconductor layer, a second semiconductor layer, and a light-emitting layer provided between the first semiconductor layer and the second semiconductor layer; an insulating film including a first opening disposed above the first semiconductor layer and a plurality of second openings disposed above the second semiconductor layer; a first pad electrode disposed on the insulating film and electrically connected to the first semiconductor layer at the first opening; a second pad electrode disposed on the insulating film and electrically connected to the second semiconductor layer at the plurality of second openings; and a third pad electrode disposed on the insulating film and electrically insulated from the semiconductor stacked body.Type: GrantFiled: May 25, 2023Date of Patent: June 4, 2024Assignee: NICHIA CORPORATIONInventor: Hiroaki Kageyama
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Publication number: 20240116618Abstract: A marine propulsion device includes a first gear, a second gear, a third gear, a circulator, a case, and an attachment body. The second gear is meshed with the first gear. The third gear is meshed with the first gear, and the third gear is coaxial with the second gear and opposed to the second gear. The circulator is between the second gear and the third gear. The case includes an internal space in which the first gear, the second gear, the third gear, and the circulator are located. The case includes an attachment hole to which the circulator is attached. The attachment body is inserted into the attachment hole so as to attach the circulator to the case.Type: ApplicationFiled: August 17, 2023Publication date: April 11, 2024Inventors: Kimitaka SARUWATARI, Akihiro NOMA, Masanari MORI, Yushi FUJITA, Hiroaki KAGEYAMA, Shinobu MUROUCHI
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Publication number: 20240006248Abstract: A method of manufacturing a light emitting device comprises: providing a structure body including a substrate and a plurality of semiconductor parts arranged on the substrate, wherein the semiconductor parts individually includes a first semiconductor layer, a second semiconductor layer, a first terminal and a second terminal; disposing an insulating member that covers the semiconductor parts; forming wirings at locations above the semiconductor parts, wherein, the wirings each connect the first terminal and the second terminal of two adjacent semiconductor parts in a direction of arrangement, the wirings serially connect the semiconductor parts, and an area of individual of the wirings is larger than an area of the first terminal or an area of the second terminal in a top view; evaluating electrical properties of the semiconductor parts connected by the wirings by bringing a testing device into contact with the wiring; and removing the insulating member and the wirings.Type: ApplicationFiled: June 28, 2023Publication date: January 4, 2024Applicant: NICHIA CORPORATIONInventor: Hiroaki KAGEYAMA
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Publication number: 20230411569Abstract: A method for manufacturing a light-emitting device includes: providing a substrate on which a semiconductor portion is disposed; providing a support substrate having conductivity, including a first surface and a second surface on a side opposite to the first surface, and including a groove portion formed at the first surface; electrically connecting the semiconductor portion and the support substrate by disposing the semiconductor portion on the first surface across the groove portion in a plan view; removing the substrate from the semiconductor portion; bonding a wavelength conversion member to the semiconductor portion from which the substrate has been removed; supplying a resin member having light reflectivity into the groove portion and a space between the support substrate and the wavelength conversion member; and exposing the resin member in the groove portion from the support substrate by removing part of the support substrate from the second surface side.Type: ApplicationFiled: June 14, 2023Publication date: December 21, 2023Applicant: NICHIA CORPORATIONInventor: Hiroaki KAGEYAMA
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Patent number: 11784170Abstract: A light emitting device that includes a plurality of element structures, a frame, and a covering member. Each of the plurality of element structures includes a light emitting element. The frame surrounds the plurality of element structures. The covering member is disposed on an inner side of the frame. The covering member is disposed between the frame and an element structure of the plurality of element structures adjacent to the frame and between adjacent element structures of the plurality of element structures. An upper surface and a lower surface of each of the plurality of element structures are exposed from the covering member.Type: GrantFiled: May 27, 2022Date of Patent: October 10, 2023Assignee: NICHIA CORPORATIONInventors: Takashi Ishii, Dai Wakamatsu, Hiroaki Kageyama
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Publication number: 20230317688Abstract: A light-emitting device includes a substrate including a base body and a metal layer disposed on an upper surface of the base body, and a plurality of light-emitting elements disposed on the metal layer. The metal layer includes, between adjacent ones of the light-emitting elements, a protrusion having a top located at a position higher than upper surfaces of the adjacent ones of the light-emitting elements. A manufacturing method of a light-emitting device includes: preparing a substrate that includes a base body and a metal layer disposed on an upper surface of the base body, the metal layer including a plurality of protrusions; and placing a light-emitting element on the metal layer between adjacent ones of the protrusions.Type: ApplicationFiled: March 28, 2023Publication date: October 5, 2023Inventor: Hiroaki KAGEYAMA
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Publication number: 20230299253Abstract: A light-emitting element includes: a support substrate; a semiconductor stacked body disposed on the support substrate, the semiconductor stacked body including a first semiconductor layer, a second semiconductor layer, and a light-emitting layer provided between the first semiconductor layer and the second semiconductor layer; an insulating film including a first opening disposed above the first semiconductor layer and a plurality of second openings disposed above the second semiconductor layer; a first pad electrode disposed on the insulating film and electrically connected to the first semiconductor layer at the first opening; a second pad electrode disposed on the insulating film and electrically connected to the second semiconductor layer at the plurality of second openings; and a third pad electrode disposed on the insulating film and electrically insulated from the semiconductor stacked body.Type: ApplicationFiled: May 25, 2023Publication date: September 21, 2023Applicant: NICHIA CORPORATIONInventor: Hiroaki KAGEYAMA
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Patent number: 11721682Abstract: A light emitting device including a plurality of element structures each including a submount, a light emitting element, and a light transmissive member, in this order. The light emitting device further includes a first cover member holding the element structures by covering lateral faces of each of the element structures.Type: GrantFiled: January 12, 2022Date of Patent: August 8, 2023Assignee: NICHIA CORPORATIONInventors: Takashi Ishii, Dai Wakamatsu, Hiroaki Kageyama
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Patent number: 11699779Abstract: A light-emitting device includes: a substrate; n light-emitting elements (n being a natural number of 2 or more) mounted on the substrate, each comprising a first bonding member electrically connected to a first semiconductor layer, and a second bonding member electrically connected to a second semiconductor layer; and n+1 interconnects provided on the substrate, the n+1 interconnects comprising a first interconnect comprising a first external connection portion, a second interconnect comprising a second external connection portion, and a third interconnect comprising a third external connection portion. In a top-view, the first light-emitting element is located between a first side of the substrate and a second light-emitting element, and the second light-emitting element is located between a first light-emitting element and a second side.Type: GrantFiled: April 27, 2021Date of Patent: July 11, 2023Assignee: NICHIA CORPORATIONInventor: Hiroaki Kageyama
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Publication number: 20230207724Abstract: A method for manufacturing a light-emitting device includes: providing an intermediate body having a first ultraviolet transmitting layer, a first adhesive layer, a plurality of first light emitting elements, a second adhesive layer, and a second ultraviolet transmitting layer; disposing on the second ultraviolet transmitting layer of the intermediate body, an ultraviolet shielding layer in a region corresponding to a part of the first light-emitting elements; performing first ultraviolet irradiation of irradiating the intermediate body with ultraviolet from a direction facing the ultraviolet shielding layer; performing second ultraviolet irradiation of irradiating the intermediate body with ultraviolet from a direction facing the first ultraviolet transmitting layer; and separating the part of the first light-emitting elements from the first adhesive layer along with the second adhesive layer.Type: ApplicationFiled: December 19, 2022Publication date: June 29, 2023Inventor: Hiroaki KAGEYAMA
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Patent number: 11655947Abstract: A light emitting device includes: a plurality of element structural bodies, each including: a substrate, a light emitting element mounted on or above the substrate, and a light-transmissive member disposed on or above the light emitting element, wherein at least three of the plurality of element structural bodies are disposed along a first direction; a first covering member that covers lateral surfaces of the substrate, the light emitting element, and the light-transmissive member of each of the plurality of element structural bodies; and a support member that covers a lateral surface of the first covering member, wherein at least a portion of the support member is disposed lateral to the plurality of element structural bodies and extends along the first direction. A rigidity of the support member is greater than a rigidity of the first covering member.Type: GrantFiled: April 7, 2021Date of Patent: May 23, 2023Assignee: NICHIA CORPORATIONInventors: Hiroaki Kageyama, Takashi Ishii
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Publication number: 20230134799Abstract: A method for manufacturing a light-emitting device includes preparing light-emitting elements, each including a semiconductor structure body that includes a first surface including recesses, a second surface, and a lateral surface. The method includes disposing the light-emitting elements on an adhesive sheet member so that the second surfaces face the sheet member and the lateral surfaces are covered with the sheet member. The method includes causing a first member to contact the first surfaces so that the first member is located inside the recesses and located between the sheet member and a second member in a state in which the second member is located on the first member. The first member includes a transmissive uncured resin member. The second member includes a wavelength conversion material and has a higher hardness than the uncured resin member. The method includes curing the first member, and removing the sheet member.Type: ApplicationFiled: October 17, 2022Publication date: May 4, 2023Applicant: NICHIA CORPORATIONInventor: Hiroaki KAGEYAMA
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Publication number: 20230099246Abstract: A method for manufacturing a light-emitting device includes preparing first and second members. The first member includes first elements having first bonding parts. The second member includes a wiring substrate and second bonding parts. The method includes bonding the first bonding part and the second bonding part at a first bonding condition. The method includes evaluating an electrical characteristic of the first elements. The method includes removing, from the wiring substrate, a defective first element determined by the evaluation to be defective. The method includes placing a second element having a third bonding part on a region of the wiring substrate at which the defective first element had been removed. The method includes bonding the first bonding part and the second bonding part, and the third bonding part and the second bonding part at a second bonding condition.Type: ApplicationFiled: August 19, 2022Publication date: March 30, 2023Applicant: NICHIA CORPORATIONInventors: Hiroaki KAGEYAMA, Koji NISHINO, Kenji OZEKI
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Patent number: 11605769Abstract: A light emitting element includes: a semiconductor layered structure; a first electrically insulating film covering surfaces of the semiconductor layered structure and defining a first opening in each of a first region and a second region of a first semiconductor layer, and defining a second opening in a portion above a second semiconductor layer; a first electrode electrically connected to the first semiconductor layer through each first opening; a second electrode electrically connected to the second semiconductor layer through the second opening; a first terminal located on the first electrode and electrically connected to the first electrode; a second terminal located on the second electrode and electrically connected to the second electrode; and a metal member located on a portion of the first electrically insulating film located over the second semiconductor layer and electrically insulated from the first terminal and the second terminal.Type: GrantFiled: July 16, 2021Date of Patent: March 14, 2023Assignee: NICHIA CORPORATIONInventor: Hiroaki Kageyama
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Publication number: 20220293573Abstract: A light emitting device that includes a plurality of element structures, a frame, and a covering member. Each of the plurality of element structures includes a light emitting element. The frame surrounds the plurality of element structures. The covering member is disposed on an inner side of the frame. The covering member is disposed between the frame and an element structure of the plurality of element structures adjacent to the frame and between adjacent element structures of the plurality of element structures. An upper surface and a lower surface of each of the plurality of element structures are exposed from the covering member.Type: ApplicationFiled: May 27, 2022Publication date: September 15, 2022Applicant: NICHIA CORPORATIONInventors: Takashi ISHII, Dai WAKAMATSU, Hiroaki KAGEYAMA
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Patent number: 11380659Abstract: A method of manufacturing a light-emitting device that includes providing a plurality of element structures, each of which includes a submount substrate, a light-emitting element, and a light-transmissive member in this order. The method further includes disposing the plurality of element structures such that the light-transmissive members face a sheet member, and forming a covering member on the sheet member to cover at least a portion of each of lateral surfaces of the submount substrate of each of the element structures.Type: GrantFiled: September 18, 2020Date of Patent: July 5, 2022Assignee: NICHIA CORPORATIONInventors: Takashi Ishii, Dai Wakamatsu, Hiroaki Kageyama
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Publication number: 20220139893Abstract: A light emitting device including a plurality of element structures each including a submount, a light emitting element, and a light transmissive member, in this order. The light emitting device further includes a first cover member holding the element structures by covering lateral faces of each of the element structures.Type: ApplicationFiled: January 12, 2022Publication date: May 5, 2022Applicant: NICHIA CORPORATIONInventors: Takashi ISHII, Dai WAKAMATSU, Hiroaki KAGEYAMA
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Patent number: 11322541Abstract: A light-emitting device includes: a circuit board; and a light-emitting element mounted on the circuit board, the light-emitting element including: a substrate provided on the circuit board, the substrate having a first side along a first direction and a second side along the first direction, wherein a second direction from the first side toward the second side being is orthogonal to the first direction; n semiconductor stacked bodies (n being a natural number of 2 or more) provided on the substrate, the n semiconductor stacked bodies comprising a first semiconductor stacked body and a second semiconductor stacked body that are electrically insulated from each other; and n+1 interconnect layers.Type: GrantFiled: August 25, 2020Date of Patent: May 3, 2022Assignee: NICHIA CORPORATIONInventor: Hiroaki Kageyama