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公开(公告)号：US20240304765A1
公开(公告)日：2024-09-12
申请号：US18276025
申请日：2022-02-14
Inventor： Ryosuke SHIGITANI , Mitsuru NITTA , Shozo OSHIO
IPC: H01L33/50
CPC classification number: H01L33/504 , H01L33/507
Abstract: Provided is a light emitting device that is characterized by at least combining a solid-state light emitting element, a first wavelength converter, and a second wavelength converter, and emits output light. The solid-state light emitting element emits primary light. The first wavelength converter absorbs at least part of the primary light and converts this part of the primary light to first wavelength-converted light. The second wavelength converter absorbs at least part of first mixed light including first transmitted primary light, which is the primary light that has passed through the first wavelength converter, and the first wavelength-converted light, and converts the light to second wavelength-converted light. The output light includes at least transmitted first wavelength-converted light, which is a light component obtained by the first wavelength-converted light having passed through the second wavelength converter, and a light component of the second wavelength-converted light.
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公开(公告)号：US20240247781A1
公开(公告)日：2024-07-25
申请号：US18598177
申请日：2024-03-07
Inventor： Mitsuru NITTA , Shozo OSHIO , Takeshi ABE
IPC: F21V9/30 , A61B1/04 , A61B1/06 , A61B5/00 , A61N5/06 , A61N5/067 , F21W131/20 , F21Y115/30
CPC classification number: F21V9/30 , A61B5/0071 , A61N5/062 , A61N5/067 , A61B1/043 , A61B1/0653 , F21W2131/20 , F21Y2115/30
Abstract: A light-emitting device includes: a light source that radiates primary light; and a first phosphor that absorbs the primary light and converts the primary light into first wavelength-converted light having a longer wavelength than the primary light, the first wavelength-converted light includes fluorescence based on electron energy transition of Cr3+, and a fluorescence spectrum of the first wavelength-converted light has a maximum fluorescence intensity value in region of a wavelength exceeding 710 nm.
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公开(公告)号：US20240118220A1
公开(公告)日：2024-04-11
申请号：US18275945
申请日：2022-02-01
Inventor： Shozo OSHIO , Mitsuru NITTA , Ryosuke SHIGITANI
IPC: G01N21/94 , G01N21/359 , G01N21/64 , G01N21/88 , G01N33/02
CPC classification number: G01N21/94 , G01N21/359 , G01N21/64 , G01N21/8806 , G01N33/02 , G01N2021/3181
Abstract: Provided is an inspection device including: a light source including a phosphor; and a photodetector, and detecting, using the photodetector, reflected light of the inspection light reflected by the inspection object. A spectral distribution of the inspection light has at least one maximum value derived from fluorescence emitted by the phosphor, and the maximum value is within a wavelength range of 600 nm or more and 750 nm or less. When Pmax is set as a spectral intensity at the maximum value where the spectral intensity is largest at the at least one maximum value, a largest value of the spectral intensity in a wavelength range longer than 750 nm is 20% or more of Pmax and less than Pmax, and the spectral intensity within a wavelength range of 500 nm or more and 550 nm or less is less than 20% of Pmax.
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14.发明公开公开(公告)号：US20230160558A1
公开(公告)日：2023-05-25
申请号：US17919999
申请日：2021-04-19
Inventor： Mitsuru NITTA , Shozo OSHIO , Chigusa FUJIWARA
IPC: F21V9/38
CPC classification number: F21V9/38 , A61B2090/304
Abstract: Provided is a wavelength converting composite member including: a disk-shaped substrate; a first wavelength converting member provided on the substrate and containing a first phosphor that radiates fluorescence due to a parity-forbidden transition; and a second wavelength converting member provided on the substrate and containing a second phosphor that radiates fluorescence due to a parity-allowed transition. The first wavelength converting member and the second wavelength converting member are disposed adjacent to each other along the circumferential direction of the substrate. The first wavelength converting member and the second wavelength converting member are provided on the substrate in such a way that the position of the center of gravity of the entirety of the first wavelength converting member and the second wavelength converting member is located on the rotation axis of the substrate. A light emitting device is provided with the wavelength converting composite member.
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公开(公告)号：US20220239153A1
公开(公告)日：2022-07-28
申请号：US17613547
申请日：2020-05-15
Inventor： Masahiro NAKAMURA , Shozo OSHIO , Yuki KOTANI
Abstract: A structural body includes: a three-dimensional net shaped body including a plurality of net lines that form a three-dimensional net shape; and a plurality of objects respectively present in two or more of a plurality of spaces partitioned by the plurality of net lines. The plurality of objects are each a mobile object that moves within one of the plurality of spaces or moves over two or more of the plurality of spaces.
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Patent Agency Ranking
公开(公告)号：US20220033708A1
公开(公告)日：2022-02-03
申请号：US17278764
申请日：2019-09-19
Inventor： Mitsuru NITTA , Shozo OSHIO
Abstract: Awarm-color complex phosphor includes: a Ce3+-activated orange phosphor that has an excitation peak within a blue wavelength range of 440 nm or more and less than 480 nm and has a fluorescence peak within an orange wavelength range of 580 nm or more and less than 610 nm; and a Ce3+-activated red phosphor that has an excitation peak within a green wavelength range of 500 nm or more and less than 550 nm and has a fluorescence peak within a red wavelength range of 610 nm or more and less than 660 nm. Preferably, the Ce3+-activated red phosphor is a nitride-based compound.
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公开(公告)号：US20200024514A1
公开(公告)日：2020-01-23
申请号：US16486828
申请日：2017-10-18
Inventor： Shozo OSHIO , Takeshi ABE
Abstract: A light-emitting device 1 includes: a solid-state light-emitting element 10 that radiates a laser beam L; and a wavelength converter 50 including a plurality of types of phosphors which receive the laser beam L and radiate light. The phosphors 50 included in the wavelength converter are substantially composed of a Ce3+-activated phosphor. Then, output light of the light-emitting device 1 has a light component across a wavelength range of at least 420 nm or more and less than 700 nm. The light-emitting device 1 is capable of radiating light with high color rendering properties over a wide wavelength range.
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公开(公告)号：US20180274737A1
公开(公告)日：2018-09-27
申请号：US15761944
申请日：2016-10-26
Inventor： Takeshi ABE , Shozo OSHIO , Hiroshi ASANO , Yosuke HONDA
Abstract: A light emitting device includes a first wavelength converter that contains a first phosphor that absorbs at least part of primary light radiated by a radiation source and converts the primary light absorbed into secondary light, and a second wavelength converter that contains a second phosphor that absorbs at least part of the secondary light and converts the secondary light absorbed into tertiary light. The lifetime of fluorescence emitted from the second phosphor is longer than the lifetime of fluorescence emitted from the first phosphor, and the light density of the secondary light, with which the second wavelength converter is irradiated, is lower than the light density of the primary light, with which the first wavelength converter is irradiated.
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19.发明申请公开(公告)号：US20170145306A1
公开(公告)日：2017-05-25
申请号：US15319084
申请日：2015-06-18
Inventor： Shinji SHIBAMOTO , Shozo OSHIO , Keiichi YAMAZAKI , Emi MIYAZAKI , Di WEN
CPC classification number: C09K11/7706 , C09K11/025 , C09K11/7734 , H01L33/50 , H01L33/502 , H01L2224/48091 , H01L2924/181 , H01L2924/00012 , H01L2924/00014
Abstract: A method of manufacturing a surface-treated phosphor (11) in which the surface of an alkaline-earth silicate phosphor (12) containing a silicate of alkaline-earth metal is covered with a surface treatment layer (13), the method comprising: surface treatment which brings the alkaline-earth silicate phosphor (12) into contact with the surface treatment substance (23) molten or pyrolyzed to form the surface treatment layer (13) on the surface of the alkaline-earth silicate phosphor (12) wherein the surface treatment substance (23) is at least one selected from a group consisting of a sulfate, a phosphate, a carbonate, a borate, a boric acid, a titanate, and a fluoride.
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公开(公告)号：US20240304764A1
公开(公告)日：2024-09-12
申请号：US18276022
申请日：2022-02-10
Inventor： Shozo OSHIO , Mitsuru NITTA , Ryosuke SHIGITANI
CPC classification number: H01L33/504 , C09K11/77348 , C09K11/7774 , C09K11/7776
Abstract: Disclosed is a light-emitting device provided with a solid-state light-emitting element and a phosphor and emits output light. The spectral distribution of the output light has a first light component and a second light component derived from fluorescence emitted by the phosphor, and has a first minimum value between the first light component and the second light component. The first light component is a fluorescent component having a maximum intensity value within a wavelength range of 560 nm or more and less than 700 nm. The second light component is a fluorescent component having a maximum intensity value within a wavelength range of 700 nm or more and less than 2500 nm. The maximum intensity value of the second light component is greater than that of the first light component. The first minimum value is less than 50% of the maximum intensity value of the second light component.
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