Patents by Inventor Hiroshi Fujimori
Hiroshi Fujimori 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: 11906156Abstract: A light emitting device includes: a mounting board; a light source positioned on the mounting board; a light diffusion plate; a diffuse reflector positioned between the mounting board and the light diffusion plate, and above at least part of an emission face of the light source; and a wavelength conversion layer positioned on or above the diffuse reflector.Type: GrantFiled: January 20, 2023Date of Patent: February 20, 2024Assignee: NICHIA CORPORATIONInventors: Motokazu Yamada, Takeshi Tamura, Hiroshi Fujimori
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Publication number: 20230151945Abstract: A light emitting device includes: a mounting board; a light source positioned on the mounting board; a light diffusion plate; a diffuse reflector positioned between the mounting board and the light diffusion plate, and above at least part of an emission face of the light source; and a wavelength conversion layer positioned on or above the diffuse reflector.Type: ApplicationFiled: January 20, 2023Publication date: May 18, 2023Applicant: NICHIA CORPORATIONInventors: Motokazu YAMADA, Takeshi TAMURA, Hiroshi FUJIMORI
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Patent number: 11585516Abstract: A light emitting device includes: a mounting board; a plurality of light sources positioned on the mounting board; first and second prism array layers stacked with each other; a dichroic layer positioned between the first and second prism array layers and the plurality of light sources; and a wavelength conversion layer positioned between the first and second prism array layers and the dichroic layer.Type: GrantFiled: August 11, 2021Date of Patent: February 21, 2023Assignee: NICHIA CORPORATIONInventors: Motokazu Yamada, Takeshi Tamura, Hiroshi Fujimori
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Patent number: 11525556Abstract: A light emitting device includes a substrate, a plurality of light sources, a partitioning member and a diffuser sheet. The light sources are disposed on an upper surface of the substrate. The partitioning member is disposed on the upper surface of the substrate and including top parts. The partitioning member is reflective. The diffuser sheet is in contact with the top parts of the partitioning member.Type: GrantFiled: June 23, 2021Date of Patent: December 13, 2022Assignee: NICHIA CORPORATIONInventors: Takeshi Tamura, Hiroshi Fujimori, Motokazu Yamada
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Publication number: 20210372591Abstract: A light emitting device includes: a mounting board; a plurality of light sources positioned on the mounting board; first and second prism array layers stacked with each other; a dichroic layer positioned between the first and second prism array layers and the plurality of light sources; and a wavelength conversion layer positioned between the first and second prism array layers and the dichroic layer.Type: ApplicationFiled: August 11, 2021Publication date: December 2, 2021Applicant: NICHIA CORPORATIONInventors: Motokazu YAMADA, Takeshi TAMURA, Hiroshi FUJIMORI
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Publication number: 20210317971Abstract: A light emitting device includes a substrate, a plurality of light sources, a partitioning member and a diffuser sheet. The light sources are disposed on an upper surface of the substrate. The partitioning member is disposed on the upper surface of the substrate and including top parts. The partitioning member is reflective. The diffuser sheet is in contact with the top parts of the partitioning member.Type: ApplicationFiled: June 23, 2021Publication date: October 14, 2021Inventors: Takeshi TAMURA, Hiroshi FUJIMORI, Motokazu YAMADA
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Patent number: 11118757Abstract: A light emitting device includes: a mounting board; a plurality of light sources positioned on the mounting board; a light diffusion plate; a half mirror positioned between the light diffusion plate and the plurality of light sources; and a plurality of diffuse reflectors positioned between the mounting board and the light diffusion plate, and above at least part of each emission face of the plurality of light sources. The diffuse reflectors comprise a resin, and particles dispersed in the resin. Each of the diffuse reflectors is positioned in an area that, in the top view, is larger than and includes the emission face of each light source. A density of the particles in said area, in the top view, is higher in a first portion located immediately above the emission face of each light source than in a second portion located around a periphery of the first portion.Type: GrantFiled: November 26, 2019Date of Patent: September 14, 2021Assignee: NICHIA CORPORATIONInventors: Motokazu Yamada, Takeshi Tamura, Hiroshi Fujimori
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Patent number: 11047551Abstract: A light emitting device includes a plurality of light sources, a substrate, a partitioning member, a diffuser sheet, a plurality of first reflectors, and a second reflector. Each of the light sources includes a light emitting element and an encapsulant covering the light emitting element. The light sources are disposed on the substrate. The partitioning member surrounds the light sources and has a plurality of areas formed by walls having top parts. The walls include surfaces inclined with respect to an upper surface of the substrate to spread out from bottom parts toward the top parts. The diffuser sheet is provided over the partitioning member. The first reflectors are provided directly over the light sources, on an upper surface or a lower surface of the diffuser sheet. The second reflector is provided directly over the top parts, on the upper surface or the lower surface of the diffuser sheet.Type: GrantFiled: May 19, 2020Date of Patent: June 29, 2021Assignee: NICHIA CORPORATIONInventors: Takeshi Tamura, Hiroshi Fujimori, Motokazu Yamada
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Publication number: 20200278103Abstract: A light emitting device includes a plurality of light sources, a substrate, a partitioning member, a diffuser sheet, a plurality of first reflectors, and a second reflector. Each of the light sources includes a light emitting element and an encapsulant covering the light emitting element. The light sources are disposed on the substrate. The partitioning member surrounds the light sources and has a plurality of areas formed by walls having top parts. The walls include surfaces inclined with respect to an upper surface of the substrate to spread out from bottom parts toward the top parts. The diffuser sheet is provided over the partitioning member. The first reflectors are provided directly over the light sources, on an upper surface or a lower surface of the diffuser sheet. The second reflector is provided directly over the top parts, on the upper surface or the lower surface of the diffuser sheet.Type: ApplicationFiled: May 19, 2020Publication date: September 3, 2020Inventors: Takeshi TAMURA, Hiroshi FUJIMORI, Motokazu YAMADA
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Patent number: 10670233Abstract: A light emitting device includes a mounting board on which a plurality of light sources are disposed; a partitioning member surrounding the light sources and including a plurality of walls that include top parts and form a plurality of areas; a diffuser sheet provided above the partitioning member and supported directly or indirectly by at least one of the top parts; a plurality of first reflectors provided directly above the light sources and positioned on one of an upper surface and a lower surface of the diffuser sheet; a second reflector provided directly above the top parts and positioned on one of the upper surface and the lower surface of the diffuser sheet; and a wavelength conversion sheet positioned above the diffuser sheet. The first reflectors contain a light absorbing material that absorbs at least part of a wavelength of light from the light sources.Type: GrantFiled: March 13, 2019Date of Patent: June 2, 2020Assignee: NICHIA CORPORATIONInventors: Takeshi Tamura, Hiroshi Fujimori, Motokazu Yamada
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Publication number: 20200096175Abstract: A light emitting device includes: a mounting board; a plurality of light sources positioned on the mounting board; a light diffusion plate; a half mirror positioned between the light diffusion plate and the plurality of light sources; and a plurality of diffuse reflectors positioned between the mounting board and the light diffusion plate, and above at least part of each emission face of the plurality of light sources. The diffuse reflectors comprise a resin, and particles dispersed in the resin. Each of the diffuse reflectors is positioned in an area that, in the top view, is larger than and includes the emission face of each light source. A density of the particles in said area, in the top view, is higher in a first portion located immediately above the emission face of each light source than in a second portion located around a periphery of the first portion.Type: ApplicationFiled: November 26, 2019Publication date: March 26, 2020Applicant: NICHIA CORPORATIONInventors: Motokazu YAMADA, Takeshi TAMURA, Hiroshi FUJIMORI
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Patent number: 10527257Abstract: A light emitting device includes: a mounting board; a plurality of light sources positioned on the mounting board; a light diffusion plate; a half mirror positioned between the light diffusion plate and the plurality of light sources; and a plurality of diffuse reflectors positioned between the mounting board and the light diffusion plate, and above at least part of each emission face of the plurality of light sources.Type: GrantFiled: September 14, 2017Date of Patent: January 7, 2020Assignee: NICHIA CORPORATIONInventors: Motokazu Yamada, Takeshi Tamura, Hiroshi Fujimori
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Publication number: 20190211996Abstract: A light emitting device includes a mounting board on which a plurality of light sources are disposed; a partitioning member surrounding the light sources and including a plurality of walls that include top parts and form a plurality of areas; a diffuser sheet provided above the partitioning member and supported directly or indirectly by at least one of the top parts; a plurality of first reflectors provided directly above the light sources and positioned on one of an upper surface and a lower surface of the diffuser sheet; a second reflector provided directly above the top parts and positioned on one of the upper surface and the lower surface of the diffuser sheet; and a wavelength conversion sheet positioned above the diffuser sheet. The first reflectors contain a light absorbing material that absorbs at least part of a wavelength of light from the light sources.Type: ApplicationFiled: March 13, 2019Publication date: July 11, 2019Inventors: Takeshi TAMURA, Hiroshi FUJIMORI, Motokazu YAMADA
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Patent number: 10274168Abstract: A light emitting device includes a mounting board on which a plurality of light sources are disposed; a partitioning member surrounding the light sources and including a plurality of walls that include top parts and form a plurality of areas; a diffuser sheet that is provided above the partitioning member and is supported directly or indirectly by at least one of the top parts of the partitioning member; a plurality of first reflectors that are provided directly above the light sources and are positioned on one of an upper surface and a lower surface of the diffuser sheet; and a second reflector that is provided directly above the top parts and is positioned on one of the upper surface and the lower surface of the diffuser sheet.Type: GrantFiled: July 13, 2017Date of Patent: April 30, 2019Assignee: NICHIA CORPORATIONInventors: Takeshi Tamura, Hiroshi Fujimori, Motokazu Yamada
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Patent number: 10180232Abstract: An optical member includes one or more lens surfaces, each lens surface comprising a curved surface having: a curvature in a first direction, and a curvature in a second direction that is perpendicular to the first direction in an imaginary plane perpendicular to an optical axis of incident light. Each of the one or more lens surfaces has a substantially rectangular planar shape when viewed in an optical axis direction, the substantially rectangular planar shape being defined by two sides substantially parallel to the first direction and two sides substantially parallel to the second direction. The curvature in the second direction continuously increases from a first end of each of the one or more lens surfaces in the first direction toward a second end of each of the one or more lens surfaces in the first direction.Type: GrantFiled: August 30, 2017Date of Patent: January 15, 2019Assignee: NICHIA CORPORATIONInventors: Hiroshi Fujimori, Akiyoshi Wakafuji
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Publication number: 20180080625Abstract: A light emitting device includes: a mounting board; a plurality of light sources positioned on the mounting board; a light diffusion plate; a half mirror positioned between the light diffusion plate and the plurality of light sources; and a plurality of diffuse reflectors positioned between the mounting board and the light diffusion plate, and above at least part of each emission face of the plurality of light sources.Type: ApplicationFiled: September 14, 2017Publication date: March 22, 2018Applicant: NICHIA CORPORATIONInventors: Motokazu YAMADA, Takeshi TAMURA, Hiroshi FUJIMORI
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Publication number: 20180058660Abstract: An optical member includes one or more lens surfaces, each lens surface comprising a curved surface having: a curvature in a first direction, and a curvature in a second direction that is perpendicular to the first direction in an imaginary plane perpendicular to an optical axis of incident light. Each of the one or more lens surfaces has a substantially rectangular planar shape when viewed in an optical axis direction, the substantially rectangular planar shape being defined by two sides substantially parallel to the first direction and two sides substantially parallel to the second direction. The curvature in the second direction continuously increases from a first end of each of the one or more lens surfaces in the first direction toward a second end of each of the one or more lens surfaces in the first direction.Type: ApplicationFiled: August 30, 2017Publication date: March 1, 2018Applicant: NICHIA CORPORATIONInventors: Hiroshi FUJIMORI, Akiyoshi WAKAFUJI
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Publication number: 20180023784Abstract: A light emitting device includes a mounting board on which a plurality of light sources are disposed; a partitioning member surrounding the light sources and including a plurality of walls that include top parts and form a plurality of areas; a diffuser sheet that is provided above the partitioning member and is supported directly or indirectly by at least one of the top parts of the partitioning member; a plurality of first reflectors that are provided directly above the light sources and are positioned on one of an upper surface and a lower surface of the diffuser sheet; and a second reflector that is provided directly above the top parts and is positioned on one of the upper surface and the lower surface of the diffuser sheet.Type: ApplicationFiled: July 13, 2017Publication date: January 25, 2018Inventors: Takeshi TAMURA, Hiroshi FUJIMORI, Motokazu YAMADA
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Publication number: 20170350010Abstract: [Object] To provide a resin container having a dense and. thin coating with good gas barrier properties and a resin-container coating apparatus. [Solution] A metal oxide film 102 is formed on at least one of inner and outer surfaces of a resin container 101. The metal oxide film 102 includes a stack of layers of a metal forming the metal oxide film that are deposited on an atomic level and has a thickness of 5 to 100 nm.Type: ApplicationFiled: October 30, 2015Publication date: December 7, 2017Applicants: TAKEMOTO YOHKI CO., LTD.Inventors: Fumihiko Hirose, Etsuko Takemoto, Hiroshi Fujimori, Tsuyoshi Mashima, Hitoshi Sakamoto, Kenichi Ishibashi
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Patent number: 4578729Abstract: A magentic recording medium in which a thin ferromagnetic film is formed over a strip or sheet of plastic film whose surface is formed with grain-, rumple- or worm-like nodules into which may be dispersed finely divided particles of the diameter ranging from 0.01 to 0.2 .mu.m. In the case of a thin ferromagnetic metal film type recording medium, steep protrusions of the height ranging from 100 to 2,000 .ANG. are distributed over the surface at the average density of 10.sup.4 to 10.sup.6 per mm.sup.2.Type: GrantFiled: October 15, 1982Date of Patent: March 25, 1986Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Takashi Suzuki, Hiroshi Fujimori, Masaru Odagiri