Patents by Inventor Kenji Ozeki
Kenji Ozeki 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: 10141491Abstract: A method of manufacturing a light emitting device includes: providing an undivided base having a first main surface and a second main surface on the opposite side from the first main surface, the undivided base having conductive patterns disposed on the first main surface and conductive patterns disposed on the second main surface; mounting a plurality of light emitting elements on the conductive patterns on the first main surface; forming a light reflecting member that integrally covers side surfaces of the light emitting elements and the first main surface of the undivided base; and, after the forming of the light reflecting member, forming at least one groove on the second main surface of the undivided base at a position corresponding to a space between the light emitting elements so that the groove reaches the first main surface and the undivided base is divided into a plurality of base members.Type: GrantFiled: March 6, 2017Date of Patent: November 27, 2018Assignee: NICHIA CORPORATIONInventors: Tomonori Miyoshi, Kenji Ozeki
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Patent number: 10090446Abstract: To provide a light emitting device having high light extraction efficiency, and a method for manufacturing the light emitting device. A method for manufacturing a light emitting device (100) according to the present invention, includes: forming a sealing member (40) for sealing a light emitting element (10) on a base body (30) by dropping, the base body (30) including a conductive member (20) for connecting to the light emitting element (10), and a molding (25) integrally molded with the conductive member (20); the sealing member (10) being formed such that at least a part of a periphery of the sealing member (40) is located on an outward surface (38) of the conductive member (20) or the molding (25), the outward surface facing outward in a top view.Type: GrantFiled: May 15, 2012Date of Patent: October 2, 2018Assignee: NICHIA CORPORATIONInventors: Masafumi Kuramoto, Daisuke Iwakura, Kenji Ozeki, Tomoaki Tsuruha, Satoshi Okada, Masaki Hayashi
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Publication number: 20180233638Abstract: A light emitting device includes a light emitting element; a light-transmissive member that has a lower surface positioned inside a peripheral edge of an upper surface of the light emitting element in plan view, a first lateral surface extending from the lower surface and having at least one inclined surface that is inclined with respect to the upper surface of the light emitting element, and a second lateral surface positioned above and outside the first lateral surface; a light-transmissive adhesive member positioned inside the second lateral surface in plan view, wherein the adhesive member adheres the upper surface of the light emitting element and the lower surface of the light-transmissive member to each other and covers the first lateral surface; and a light-reflective member covering the second lateral surface.Type: ApplicationFiled: April 13, 2018Publication date: August 16, 2018Applicant: NICHIA CORPORATIONInventors: Tomonori MIYOSHI, Kenji OZEKI
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Publication number: 20180195675Abstract: A method of manufacturing a light emitting device includes: mounting a plurality of light emitting elements on a base material; joining a plurality of translucent members respectively on upper surfaces of the light emitting elements; covering side surfaces of the light emitting elements and side surfaces of the translucent members with a light reflecting member at once; and forming a groove in the light reflecting member between adjacent ones of the light emitting elements.Type: ApplicationFiled: March 7, 2018Publication date: July 12, 2018Inventors: Tomonori MIYOSHI, Kenji OZEKI
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Publication number: 20180182929Abstract: A light emitting device includes a substrate, a light emitting element, a plurality of bumps and a cover member. The bumps are disposed between the substrate and the light emitting element to mount the light emitting element on the substrate. The bumps include a plurality of first bumps bonded to a first electrode of the light emitting element, and a plurality of second bumps bonded to a second electrode of the light emitting element. The first bumps are spaced apart from exposed portions of a first semiconductor layer of the light emitting element. The first bumps include a plurality of large bumps and a plurality of small bumps each having a smaller surface area than each of the large bumps in a plan view. The cover member covers the light emitting element, the bumps, and the substrate.Type: ApplicationFiled: December 14, 2017Publication date: June 28, 2018Inventors: Kenji OZEKI, Akira GOTO
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Patent number: 9972752Abstract: A light-emitting device having good light extracting efficiency is provided, along with a method for manufacturing the same. A method for manufacturing a light-emitting device includes preparing a base that includes a recess, arranging a light-emitting element on a bottom surface of the recess, dropping a first member into the recess to continuously cover an upper surface of the light-emitting element and an inner wall of the recess by the first member, dropping a second member into the recess, wherein the second member has a higher specific gravity than the first member, and further wherein dropping the second member includes semi-curing the first member, and after the second member is dropped, fully curing the first member and the second member.Type: GrantFiled: April 7, 2016Date of Patent: May 15, 2018Assignee: NICHIA CORPORATIONInventor: Kenji Ozeki
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Patent number: 9972754Abstract: A light emitting device includes a light emitting element; a light-transmissive member that has a lower surface positioned inside a peripheral edge of an upper surface of the light emitting element in plan view, a first lateral surface extending from the lower surface and having at least one inclined surface that is inclined with respect to the upper surface of the light emitting element, and a second lateral surface positioned above and outside the first lateral surface; a light-transmissive adhesive member positioned inside the second lateral surface in plan view, wherein the adhesive member adheres the upper surface of the light emitting element and the lower surface of the light-transmissive member to each other and covers the first lateral surface; and a light-reflective member covering the second lateral surface.Type: GrantFiled: August 30, 2016Date of Patent: May 15, 2018Assignee: NICHIA CORPORATIONInventors: Tomonori Miyoshi, Kenji Ozeki
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Publication number: 20180123005Abstract: A light emitting device includes a light emitting element, a first light transmissive member, and a second light transmissive member. A first lower face of the first light transmissive member is bonded to a light extraction face of the light emitting element and has a first lower face perimeter positioned outside of a light extraction face perimeter of the light extraction face when viewed in a height direction of the light emitting device. A second lower face of the second light transmissive member has a second lower face perimeter that coincides with or is inside of the first upper face perimeter when viewed in the height direction. A second upper face of the second light transmissive member is positioned inside of the first upper face perimeter when viewed in the height direction.Type: ApplicationFiled: November 1, 2017Publication date: May 3, 2018Applicant: NICHIA CORPORATIONInventors: Kenji OZEKI, Shimpei MAEDA
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Patent number: 9954153Abstract: A light-emitting device includes a substrate; a light-emitting element mounted on the substrate; a first light-transmissive member bonded to an upper surface of the light-emitting element via an adhesive; and a second light-transmissive member placed on an upper surface of the first light-transmissive member. In a plan view of the light-emitting device, a peripheral edge of a lower surface of the first light-transmissive member is positioned more inward than a peripheral edge of the upper surface of the light-emitting element. The adhesive extends from the upper surface of the light-emitting element to a lower surface of the second light-transmissive member, the adhesive covers a side surface of the first light-transmissive member, and the adhesive is separated from the substrate.Type: GrantFiled: June 28, 2017Date of Patent: April 24, 2018Assignee: NICHIA CORPORATIONInventors: Tomonori Miyoshi, Kenji Ozeki
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Publication number: 20180106942Abstract: A light-emitting device includes a light-emitting element, first and second light-transmissive members disposed on the light-emitting element, a light-guiding member, and a light-reflective member. A perimeter of a lower surface of the first light-transmissive member is disposed inwardly of a perimeter of an upper surface of the light-emitting element in a plan view. The light-guiding member covers the upper surface of the light-emitting element and the lower surface and lateral surfaces of the first light-transmissive member. The light-guiding member does not cover an upper surface of the second light-transmissive member and at least a portion of a lateral surface of the second light-transmissive member continuous. The light-reflective member covers lateral surfaces of the light-guiding member and at least the portion of the lateral surface of the second light-transmissive member exposed from the light-guiding member.Type: ApplicationFiled: October 13, 2017Publication date: April 19, 2018Inventors: Kenji Ozeki, Akira Goto
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Publication number: 20170373225Abstract: A light emitting device includes a base member; a light emitting element mounted on the base member; a light-transmissive member that covers an upper surface of the light emitting element, and is substantially rectangular in a plan view; and a light reflecting member that covers a lateral surface of the light-transmissive member, the light reflecting member having a substantially rectangular frame shape in a plan view. A width of the light reflecting member is smaller along a short side of the light-transmissive member than along a long side of the light-transmissive member. A height of the light reflecting member is smaller along the short side of the light-transmissive member than along the long side of the light-transmissive member at a position separated from an outer edge of the light reflecting member by a predetermined distance.Type: ApplicationFiled: August 22, 2017Publication date: December 28, 2017Applicant: NICHIA CORPORATIONInventors: Satoshi SHICHIJO, Kunihito SUGIMOTO, Kenji OZEKI, Shogo ABE
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Publication number: 20170301839Abstract: A light-emitting device includes a substrate; a light-emitting element mounted on the substrate; a first light-transmissive member bonded to an upper surface of the light-emitting element via an adhesive; and a second light-transmissive member placed on an upper surface of the first light-transmissive member. In a plan view of the light-emitting device, a peripheral edge of a lower surface of the first light-transmissive member is positioned more inward than a peripheral edge of the upper surface of the light-emitting element. The adhesive extends from the upper surface of the light-emitting element to a lower surface of the second light-transmissive member, the adhesive covers a side surface of the first light-transmissive member, and the adhesive is separated from the substrate.Type: ApplicationFiled: June 28, 2017Publication date: October 19, 2017Applicant: NICHIA CORPORATIONInventors: Tomonori MIYOSHI, Kenji OZEKI
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Patent number: 9780258Abstract: A light emitting device includes a base member; a light emitting element mounted on the base member; a light-transmissive member that covers an upper surface of the light emitting element, and is substantially rectangular in a plan view; and a light reflecting member that covers a lateral surface of the light-transmissive member, the light reflecting member having a substantially rectangular frame shape in a plan view. A width of the light reflecting member is smaller along a short side of the light-transmissive member than along a long side of the light-transmissive member. A height of the light reflecting member is smaller along the short side of the light-transmissive member than along the long side of the light-transmissive member at a position separated from an outer edge of the light reflecting member by a predetermined distance.Type: GrantFiled: July 21, 2016Date of Patent: October 3, 2017Assignee: NICHIA CORPORATIONInventors: Satoshi Shichijo, Kunihito Sugimoto, Kenji Ozeki, Shogo Abe
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Publication number: 20170248281Abstract: A light emitting device includes one or more light emitting elements, a light transmissive member, a first light reflective member and a second light reflective member. The light transmissive member is disposed on the one or more light emitting elements and having a first upper surface, a lower surface, first lateral surfaces, and second lateral surfaces each positioned on an outer side of a corresponding one of the first lateral surfaces. The first light reflective member covers the first lateral surfaces. The second light reflective member is disposed on lateral surfaces of the first light reflective member, the second lateral surfaces of the light transmissive member, and lateral surfaces of the one or more light emitting elements.Type: ApplicationFiled: February 22, 2017Publication date: August 31, 2017Inventor: Kenji OZEKI
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Patent number: 9722156Abstract: A light-emitting device includes a light-emitting element; a first light transmissive member that is disposed over the light-emitting element and that includes a first upper surface, a lower surface, a first lateral surface; and a second lateral surface positioned outside the first lateral surface, a second light transmissive member that covers at least a part of the first lateral surface; and a light reflective member that is disposed on a lateral surface of the second light transmissive member, the second lateral surface of the first light transmissive member, and a lateral surface of the light-emitting element.Type: GrantFiled: August 18, 2016Date of Patent: August 1, 2017Assignee: NICHIA CORPORATIONInventors: Satoshi Shichijo, Kunihito Sugimoto, Kenji Ozeki
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Patent number: 9722153Abstract: A light-emitting device includes a substrate; a light-emitting element mounted on the substrate; a first light-transmissive member bonded to an upper surface of the light-emitting element via an adhesive; and a second light-transmissive member placed on an upper surface of the first light-transmissive member. In a plan view of the light-emitting device, a peripheral edge of a lower surface of the first light-transmissive member is positioned more inward than a peripheral edge of the upper surface of the light-emitting element. The adhesive extends from the upper surface of the light-emitting element to a lower surface of the second light-transmissive member, the adhesive covers a side surface of the first light-transmissive member, and the adhesive is separated from the substrate.Type: GrantFiled: September 12, 2016Date of Patent: August 1, 2017Assignee: NICHIA CORPORATIONInventors: Tomonori Miyoshi, Kenji Ozeki
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Publication number: 20170205048Abstract: A light emitting device is disclosed. The light emitting device includes a mounting board, one or more light emitting elements arranged on the mounting board, a frame disposed to surround the one or more light emitting elements, and a light transmissive member encapsulating an area surrounded by the frame. The frame has an inner perimeter that includes at least a pair of opposing sides and four acute-angled portions each provided at each end of the pair of opposing sides, in a plan view.Type: ApplicationFiled: January 17, 2017Publication date: July 20, 2017Applicant: NICHIA CORPORATIONInventors: Tomonori MIYOSHI, Kenji OZEKI
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Publication number: 20170179360Abstract: A method of manufacturing a light emitting device includes: providing an undivided base having a first main surface and a second main surface on the opposite side from the first main surface, the undivided base having conductive patterns disposed on the first main surface and conductive patterns disposed on the second main surface; mounting a plurality of light emitting elements on the conductive patterns on the first main surface; forming a light reflecting member that integrally covers side surfaces of the light emitting elements and the first main surface of the undivided base; and, after the forming of the light reflecting member, forming at least one groove on the second main surface of the undivided base at a position corresponding to a space between the light emitting elements so that the groove reaches the first main surface and the undivided base is divided into a plurality of base members.Type: ApplicationFiled: March 6, 2017Publication date: June 22, 2017Inventors: Tomonori MIYOSHI, Kenji OZEKI
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Publication number: 20170154879Abstract: A method of manufacturing a light-emitting device incudes providing a supporting member having a recess; disposing a light-emitting element at a bottom surface of the recess; disposing a first light-reflecting resin at the bottom surface of the recess; disposing a second light-reflecting resin in the recess, a viscosity of the second light-reflecting resin being higher than a viscosity of the first light-reflecting resin; and curing the first light-reflecting resin and the second light-reflecting resin to form a light-reflecting wall.Type: ApplicationFiled: November 8, 2016Publication date: June 1, 2017Applicant: NICHIA CORPORATIONInventors: Kenji OZEKI, Takakazu KONO, Kunihito SUGIMOTO
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Publication number: 20170154880Abstract: A method of manufacturing a light emitting device includes: mounting light emitting elements on a collective substrate; arranging a first protruding member surrounding the light emitting elements; arranging a second protruding member between the light emitting elements; forming a cover member covering an upper end of the second protruding member, a lateral surface of each of the light emitting elements in a region surrounded by the first protruding member; and singulating the light emitting devices by cutting the cover member, the second protruding member, and the collective substrate at a portion including the second protruding member. The second protruding member is harder than the cover member. An upper end of the second protruding member is located lower than that of the first protruding member but higher than the upper surface of each of the light emitting elements.Type: ApplicationFiled: November 30, 2016Publication date: June 1, 2017Applicant: NICHIA CORPORATIONInventors: Kenji OZEKI, Hiroki FUKUTA