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公开(公告)号：US20240161985A1
公开(公告)日：2024-05-16
申请号：US18549498
申请日：2022-03-04
Inventor： Shinji KONDOU , Kazuya YAMASAKI , Takashi KAWASAKI , Koji YOKOYAMA , Hitoshi ISHIMOTO , Yoshihisa NAGASAKI , Yuji MIYACHI
CPC classification number: H01G9/028 , H01G9/0036 , H01G9/048 , H01G9/15
Abstract: An electrolytic capacitor includes an anode body, a dielectric layer that covers the anode body, a first solid electrolyte layer that covers the dielectric layer, and a second solid electrolyte layer that covers the first solid electrolyte layer. The first solid electrolyte layer contains a first conductive polymer that includes polypyrrole as a basic skeleton. The second solid electrolyte layer contains a second conductive polymer that includes polythiophene as a basic skeleton. The second solid electrolyte layer has a thickness of 1 μm or more.
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公开(公告)号：US20220100068A1
公开(公告)日：2022-03-31
申请号：US17426329
申请日：2019-10-17
Inventor： Yoshihisa NAGASAKI , Takashi OHBAYASHI , Naoyuki TANI , Nobuyasu SUZUKI , Takahiro HAMADA , Yukihiko SUGIO
Abstract: Provided is a technique for suppressing a temperature rise of a wavelength conversion member. The present disclosure is provided with: phosphor layer containing a phosphor; substrate that supports phosphor layer; and heat sink bonded to substrate, wherein the thermal conductivity of substrate is greater than the thermal conductivity of phosphor layer, and the thermal conductivity of heat sink is greater than the thermal conductivity of substrate, or the thermal conductivity of heat sink is smaller than the thermal conductivity of substrate.
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公开(公告)号：US20230326624A1
公开(公告)日：2023-10-12
申请号：US18043510
申请日：2021-09-02
Inventor： Takashi SASAKI , Seiji TAGUCHI , Yoshihisa NAGASAKI , Toshiyuki TAKIZAWA
CPC classification number: H01B3/10 , H01L29/517 , H01L21/28194 , H01G4/105 , H01G4/33
Abstract: An oxide insulator film contains a first metal oxide and a second metal oxide. An electrical conductivity of the second metal oxide is lower than an electrical conductivity of the first metal oxide. The oxide insulator film includes particles of the first metal oxide which are dispersed in a matrix including the second metal oxide.
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公开(公告)号：US20200011507A1
公开(公告)日：2020-01-09
申请号：US16483874
申请日：2018-02-09
Inventor： Yoshihisa NAGASAKI , Takashi OHBAYASHI , Takahiro HAMADA , Yukihiko SUGIO , Yusuke OGIHARA
IPC: F21V9/30 , F21S41/16 , F21S41/176
Abstract: A wavelength conversion member of the present disclosure includes a first matrix, phosphor particles embedded in the first matrix, and at least one selected from the group consisting of first filler particles embedded in the first matrix and surface coating layers respectively covering surfaces of the phosphor particles. The wavelength conversion member satisfies at least one relationship selected from the group consisting of |n3−n1|>|n1−n2| and |n4−n1|>|n1−n2| wherein n1 is a refractive index of the first matrix, n2 is a refractive index of the phosphor particles, n3 is a refractive index of the first filler particles, and n4 is a refractive index of the surface coating layers.
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公开(公告)号：US20210270428A1
公开(公告)日：2021-09-02
申请号：US17273604
申请日：2019-07-05
Inventor： Yuki UEDA , Masayuki HOGIRI , Yoshihisa NAGASAKI , Kojiro OKUYAMA
IPC: F21K9/64 , F21S41/125
Abstract: Provided is a wavelength conversion member capable of improving brightness of a light source device. Wavelength conversion member according to the present disclosure includes: first phosphor layer that is disposed on an incidence side where excitation light enters, and contains a plurality of first phosphor particles; and second phosphor layer that is disposed on a side reverse to the incidence side and contains a plurality of second phosphor particles. First phosphor particles include an activation component, second phosphor particles include an activation component same as or different from the activation component included in first phosphor particles, and a concentration of the activation component in first phosphor layer is lower than a concentration of the activation component in second phosphor layer.
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Patent Agency Ranking
公开(公告)号：US20180363860A1
公开(公告)日：2018-12-20
申请号：US16112162
申请日：2018-08-24
Inventor： Hideki KASUGAI , Masaharu FUKAKUSA , Toshihiro KOGA , Yoshihisa NAGASAKI , Kazuhiko YAMANAKA
Abstract: A light source device includes: a semiconductor light-emitting element; a converging optical system which converges the excitation light emitted from the semiconductor light-emitting element; and a wavelength conversion element to which the excitation light is emitted. The wavelength conversion element includes: a first wavelength conversion region where main light enters; and a second wavelength conversion region which is disposed in the surrounding region of the first wavelength conversion region and where the excitation light excluding the main light enters. The wavelength conversion efficiency in the second wavelength conversion region is lower than the wavelength conversion efficiency in the first wavelength conversion region.
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公开(公告)号：US20220057702A1
公开(公告)日：2022-02-24
申请号：US17414401
申请日：2019-10-04
Inventor： Takahiro HAMADA , Naoyuki TANI , Takashi OHBAYASHI , Yoshihisa NAGASAKI
Abstract: A wavelength conversion device includes a matrix containing inorganic material, a phosphor embedded in the matrix, and filler particles embedded in the matrix and containing resin material. This wavelength conversion device prevents the phosphor from falling.
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公开(公告)号：US20180216800A1
公开(公告)日：2018-08-02
申请号：US15934657
申请日：2018-03-23
Inventor： Kazuhiko YAMANAKA , Hideki KASUGAI , Yoshihisa NAGASAKI , Takahiro HAMADA
CPC classification number: F21V9/32 , C09K11/02 , C09K11/7734 , C09K11/7774 , C09K11/7792 , F21K9/64 , F21V5/04 , F21V7/28 , F21V9/30 , F21V9/38 , F21Y2115/30 , G02B5/20 , H01L33/504 , H01L33/507 , H01L33/508 , H01L2933/0041 , H01S5/022
Abstract: A wavelength conversion element includes a support member having a supporting surface, and a wavelength converter disposed above the supporting surface. The wavelength converter contains first fluorescent particles which absorb excitation light and generate fluorescence (second radiation light), and a transparent binder which bonds the first fluorescent particles, and has a joint surface facing supporting surface, and an incident surface disposed opposite to the joint surface, the excitation light entering the incident surface. The excitation light and fluorescence are emitted from the incident surface. The wavelength converter includes projections. At least part of the projections is disposed on the incident surface. The first fluorescent particles are partially exposed from vertices of the projections.
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公开(公告)号：US20220059729A1
公开(公告)日：2022-02-24
申请号：US17414877
申请日：2019-10-04
Inventor： Takahiro HAMADA , Yukihiko SUGIO , Nobuyasu SUZUKI , Yoshihisa NAGASAKI
Abstract: A wavelength conversion device includes a substrate, a matrix supported by the substrate and containing inorganic material, a phosphor embedded in the matrix, and filler particles embedded in the matrix. A linear expansion coefficient of the filler particles is equal to or larger than 25 ppm/K and equal to or smaller than 790 ppm/K, and is larger than a linear expansion coefficient of the matrix. This wavelength conversion device suppresses warping of the substrate.
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公开(公告)号：US20210149097A1
公开(公告)日：2021-05-20
申请号：US16623043
申请日：2018-06-14
Inventor： Yukihiko SUGIO , Takahiro HAMADA , Nobuyasu SUZUKI , Yoshihisa NAGASAKI
Abstract: Provided is a wavelength conversion member exhibiting high reliability. A wavelength conversion member includes a phosphor layer having a matrix containing ZnO and phosphor particles embedded in the matrix and a first protective layer that contains at least one selected from the group of ZnCl2, ZnS and ZnSO4 and covers the phosphor layer. For example, the first protective layer is in contact with the phosphor layer. For example, ZnO is c-axis-oriented polycrystalline ZnO.
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