Patents by Inventor Hirosuke HAYASHI
Hirosuke HAYASHI 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: 20230387361Abstract: A method of manufacturing a light emitting device includes: providing a light emitting structure including a light emitting element having a top surface and lateral surfaces, a wavelength conversion member having a top surface, a bottom surface, and lateral surfaces, with the bottom surface of the wavelength conversion member facing the top surface of the light emitting element, and a reflecting member surrounding the lateral surfaces of the light emitting element and the lateral surfaces of the wavelength conversion member, the reflecting member having a top surface; and supplying a covering member to cover the top surface of the wavelength conversion member and the top surface of the reflecting member, the covering member containing at least one of a pigment and a dye so that a body color of the covering member is the same or a similar color as a body color of the wavelength conversion member.Type: ApplicationFiled: August 8, 2023Publication date: November 30, 2023Inventor: Hirosuke HAYASHI
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Patent number: 11764338Abstract: A light emitting device includes first and second light emitting elements, first and second wavelength conversion members, a reflecting member surrounding lateral surfaces of the first and second light emitting elements, and the lateral surfaces of the first and second wavelength conversion members, and a covering member continuously covering at least a top surface of the first wavelength conversion member, a top surface of the reflecting member disposed between the first and second wavelength conversion members, and a top surface of the second wavelength conversion member. The covering member contains at least one of a pigment and a dye so that a body color of the covering member is the same or a similar color as a body color of the wavelength conversion member.Type: GrantFiled: June 28, 2022Date of Patent: September 19, 2023Assignee: NICHIA CORPORATIONInventor: Hirosuke Hayashi
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Publication number: 20220328735Abstract: A light emitting device includes first and second light emitting elements, first and second wavelength conversion members, a reflecting member surrounding lateral surfaces of the first and second light emitting elements, and the lateral surfaces of the first and second wavelength conversion members, and a covering member continuously covering at least a top surface of the first wavelength conversion member, a top surface of the reflecting member disposed between the first and second wavelength conversion members, and a top surface of the second wavelength conversion member. The covering member contains at least one of a pigment and a dye so that a body color of the covering member is the same or a similar color as a body color of the wavelength conversion member.Type: ApplicationFiled: June 28, 2022Publication date: October 13, 2022Inventor: Hirosuke HAYASHI
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Patent number: 11404615Abstract: A light emitting device includes a light emitting element, a wavelength conversion member, a reflecting member and a covering member. The light emitting element has a top surface and lateral surfaces. The wavelength conversion member has a top surface, a bottom surface, and lateral surfaces, with the bottom surface of the wavelength conversion member facing the top surface of the light emitting element. The reflecting member surrounds the lateral surfaces of the light emitting element and the lateral surfaces of the wavelength conversion member. The reflecting member has a top surface. The covering member covers the top surface of the wavelength conversion member and the top surface of the reflecting member. The covering member contains a pigment or a dye so that a body color of the covering member is the same or a similar color as a body color of the wavelength conversion member.Type: GrantFiled: January 14, 2019Date of Patent: August 2, 2022Assignee: NICHIA CORPORATIONInventor: Hirosuke Hayashi
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Patent number: 10998472Abstract: A light emitting device includes: a light emitting element having an emission face and lateral faces; a wavelength conversion member having a first face and a second face which opposes the first face, the wavelength conversion member being disposed on the emission face of the light emitting element so that the first face faces the emission face; a reflecting member disposed on lateral face sides of the light emitting element and covering at least a portion of outer lateral faces of the wavelength conversion member, and a cover member disposed on an upper face of the reflecting member while being adjacent to peripheral ends of the wavelength conversion member. The cover member contains at least one of a reflecting substance and a coloring substance. A body color of the wavelength conversion member and a body color of the cover member are the same color or similar colors.Type: GrantFiled: December 21, 2018Date of Patent: May 4, 2021Assignee: NICHIA CORPORATIONInventor: Hirosuke Hayashi
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Patent number: 10608155Abstract: A method for manufacturing a light emitting device includes: placing a light-transmissive member, which includes first and second regions, above a light emitting element so that the first region of the light-transmissive member is positioned directly above a top surface of the light emitting element, and a lateral surface of the light emitting element and a bottom surface of the second region of the light-transmissive member are covered by a light guide member; and covering an outer surface of the light guide member with a light reflective member. The light-transmissive member contains a fluorescent substance and a light scattering material, a concentration of the fluorescent substance in the light-transmissive member is higher in the first region than in the second region, and a concentration of the light scattering material in the light-transmissive member is higher in the second region than in the first region.Type: GrantFiled: June 28, 2019Date of Patent: March 31, 2020Assignee: NICHIA CORPORATIONInventor: Hirosuke Hayashi
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Publication number: 20190326497Abstract: A method for manufacturing a light emitting device includes: placing a light-transmissive member, which includes first and second regions, above a light emitting element so that the first region of the light-transmissive member is positioned directly above a top surface of the light emitting element, and a lateral surface of the light emitting element and a bottom surface of the second region of the light-transmissive member are covered by a light guide member; and covering an outer surface of the light guide member with a light reflective member. The light-transmissive member contains a fluorescent substance and a light scattering material, a concentration of the fluorescent substance in the light-transmissive member is higher in the first region than in the second region, and a concentration of the light scattering material in the light-transmissive member is higher in the second region than in the first region.Type: ApplicationFiled: June 28, 2019Publication date: October 24, 2019Inventor: Hirosuke HAYASHI
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Patent number: 10388835Abstract: A light emitting device includes a light emitting element, a transmissive member, and a light reflective member. The transmissive member is arranged on the light emitting element, and has a wavelength conversion member and a film. The film constitutes at least a part of an outermost surface of a side surface of the transmissive member. A surface free energy of a base material of the film is lower than a surface free energy of a base material of the wavelength conversion layer. The light reflective member encloses a side surface of the light emitting element and the side surface of the transmissive member while a top surface of the transmissive member is exposed from the light reflective member.Type: GrantFiled: March 9, 2018Date of Patent: August 20, 2019Assignee: NICHIA CORPORATIONInventor: Hirosuke Hayashi
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Patent number: 10381538Abstract: A light emitting device includes a light emitting element, a light-transmissive member, a light guide member and a light reflective member. The light-transmissive member includes a first region directly above a top surface of the light emitting element, and a second region at a lateral side of the first region. The light guide member covers a lateral surface of the light emitting element and a bottom surface of the second region of the light-transmissive member. The light reflective member covers an outer surface of the light guide member. The light-transmissive member contains a fluorescent substance and a light scattering material that is not a fluorescent substance. A concentration of the fluorescent substance in the light-transmissive member is higher in the first region than in the second region. A concentration of the light scattering material in the light-transmissive member is higher in the second region than in the first region.Type: GrantFiled: January 22, 2018Date of Patent: August 13, 2019Assignee: NICHIA CORPORATIONInventor: Hirosuke Hayashi
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Publication number: 20190221727Abstract: A light emitting device includes a light emitting element, a wavelength conversion member, a reflecting member and a covering member. The light emitting element has a top surface and lateral surfaces. The wavelength conversion member has a top surface, a bottom surface, and lateral surfaces, with the bottom surface of the wavelength conversion member facing the top surface of the light emitting element. The reflecting member surrounds the lateral surfaces of the light emitting element and the lateral surfaces of the wavelength conversion member. The reflecting member has a top surface. The covering member covers the top surface of the wavelength conversion member and the top surface of the reflecting member. The covering member contains a pigment or a dye so that a body color of the covering member is the same or a similar color as a body color of the wavelength conversion member.Type: ApplicationFiled: January 14, 2019Publication date: July 18, 2019Inventor: Hirosuke HAYASHI
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Publication number: 20190198729Abstract: A light emitting device includes: a light emitting element having an emission face and lateral faces; a wavelength conversion member having a first face and a second face which opposes the first face, the wavelength conversion member being disposed on the emission face of the light emitting element so that the first face faces the emission face; a reflecting member disposed on lateral face sides of the light emitting element and covering at least a portion of outer lateral faces of the wavelength conversion member, and a cover member disposed on an upper face of the reflecting member while being adjacent to peripheral ends of the wavelength conversion member. The cover member contains at least one of a reflecting substance and a coloring substance. A body color of the wavelength conversion member and a body color of the cover member are the same color or similar colors.Type: ApplicationFiled: December 21, 2018Publication date: June 27, 2019Applicant: NICHIA CORPORATIONInventor: Hirosuke HAYASHI
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Publication number: 20180269361Abstract: A light emitting device includes a light emitting element, a transmissive member, and a light reflective member. The transmissive member is arranged on the light emitting element, and has a wavelength conversion member and a film. The film constitutes at least a part of an outermost surface of a side surface of the transmissive member. A surface free energy of a base material of the film is lower than a surface free energy of a base material of the wavelength conversion layer. The light reflective member encloses a side surface of the light emitting element and the side surface of the transmissive member while a top surface of the transmissive member is exposed from the light reflective member.Type: ApplicationFiled: March 9, 2018Publication date: September 20, 2018Inventor: Hirosuke HAYASHI
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Publication number: 20180212128Abstract: A light emitting device includes a light emitting element, a light-transmissive member, a light guide member and a light reflective member. The light-transmissive member includes a first region directly above a top surface of the light emitting element, and a second region at a lateral side of the first region. The light guide member covers a lateral surface of the light emitting element and a bottom surface of the second region of the light-transmissive member. The light reflective member covers an outer surface of the light guide member. The light-transmissive member contains a fluorescent substance and a light scattering material that is not a fluorescent substance. A concentration of the fluorescent substance in the light-transmissive member is higher in the first region than in the second region. A concentration of the light scattering material in the light-transmissive member is higher in the second region than in the first region.Type: ApplicationFiled: January 22, 2018Publication date: July 26, 2018Inventor: Hirosuke HAYASHI