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公开(公告)号：US20180072946A1
公开(公告)日：2018-03-15
申请号：US15546400
申请日：2016-01-27
Applicant: Denka Company Limited
Inventor： Hideyuki EMOTO , Motoi TANAKA , Kazuhiro ITO
CPC classification number: C09K11/61 , C09K11/55 , C09K11/57 , C09K11/616 , C09K11/617 , C09K11/66 , C09K11/677 , G02B5/003 , H01L33/50
Abstract: Provided is a phosphor represented by the general formula: A2MF6:Mn. The elements A each represents an alkali metal element, the element M represents one or more tetravalent metallic elements selected from Si, Ge, Sn, Ti, Zr and Hf. The phosphor has a minimal light absorption rate in a wavelength range of 300 nm or more and 350 nm or less of 67% or less, and a maximum light absorption rate in a wavelength range of 400 nm or more and 500 nm or less of 65% or more. The phosphor has a Mn content of 0.3% by mass or more and 1.5% by mass or less.
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公开(公告)号：US20240145640A1
公开(公告)日：2024-05-02
申请号：US18280418
申请日：2022-02-21
Applicant: DENKA COMPANY LIMITED
Inventor： Yuki KUBOTA , Taiyo YAMAURA , Kazuhiro ITO
CPC classification number: H01L33/502 , C09K11/02 , C09K11/77348 , H01L33/505
Abstract: A phosphor plate according to the present invention is a phosphor plate including: a plate-like composite including a base material and a phosphor dispersed in the base material, in which both Ry1 and Ry2 are 5.00 μm or less, where Ry1 is a maximum height on a front surface of the phosphor plate and Ry2 is a maximum height on a back surface.
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公开(公告)号：US20220350061A1
公开(公告)日：2022-11-03
申请号：US17621105
申请日：2020-06-22
Applicant: DENKA COMPANY LIMITED
Inventor： Taiyo YAMAURA , Yuki KUBOTA , Kazuhiro ITO , Hideyuki EMOTO
Abstract: A phosphor plate including a base material, and a plate-shaped composite including phosphors dispersed in the base material, in which in a case in which an absorption spectrum of light having a wavelength of 300 nm to 700 nm is measured, when an absorbance at 455 nm is defined as A455(%), an absorbance at 700 nm is defined as A700(%), and a thickness of the phosphor plate is defined as T (mm), (A700/A455)/T satisfies 0.01 or more and 1.00 or less.
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Patent Agency Ranking
公开(公告)号：US20170009133A1
公开(公告)日：2017-01-12
申请号：US15121318
申请日：2015-02-25
Applicant: DENKA COMPANY LIMITED
Inventor： Hideyuki EMOTO , Shinichi YANAGI , Masayoshi ICHIKAWA , Kazuhiro ITO
CPC classification number: C09K11/617 , H01L33/50 , H01L33/501 , H01L33/502
Abstract: The present invention relates to an Mn4+-activated complex fluoride phosphor with improved moisture resistance due to modification of the particle surface, and a light emitting element and light emitting device having excellent color rendering properties and stability due to the use of this phosphor.The phosphor of the present invention is characterized in that it is represented by the general formula: A2MF6:Mn4+, wherein element A is an alkali metal element comprising at least K, element M is one or more metal elements chosen from among Si, Ge, Sn, Ti, Zr and Hf, F is fluorine, and Mn is manganese, wherein the phosphor comprises Ca in a concentration range of at least 20 ppm and at most 10,000 ppm or Cl in a concentration range of at least 20 ppm and at most 300 ppm.
Abstract translation: 本发明的荧光体的特征在于它由以下通式表示：A2MF6：Mn4 +，其中元素A是至少包含K的碱金属元素，元素M是一种或多种选自Si，Ge， Sn，Ti，Zr和Hf，F是氟，Mn是锰，其中磷光体包含浓度范围为至少20ppm和至多10,000ppm的Ca或至少20ppm的浓度范围的Cl 300 ppm。
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公开(公告)号：US20230053528A1
公开(公告)日：2023-02-23
申请号：US17796602
申请日：2021-01-28
Applicant: DENKA COMPANY LIMITED
Inventor： Yuki KUBOTA , Taiyo YAMAURA , Kazuhiro ITO
IPC: C09K11/02 , H01L33/50 , C09K11/77 , C04B35/117 , C04B35/443
Abstract: A phosphor plate includes a plate-like composite including a base material and an α-type sialon phosphor present in the base material, in which, in an X-ray diffraction analysis pattern using a Cu-Kα ray, in a case in which peak intensity corresponding to the α-type sialon phosphor having a diffraction angle 2 θ in a range of 30.2° or more and 30.4° or less is defined as Iα and peak intensity of a peak having a diffraction angle 2 θ in a range of 26.6° or more and 26.8° or less is defined as Iβ, Iα, and Iβ satisfy 0
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公开(公告)号：US20220251444A1
公开(公告)日：2022-08-11
申请号：US17622259
申请日：2020-06-22
Applicant: DENKA COMPANY LIMITED
Inventor： Taiyo YAMAURA , Yuki KUBOTA , Kazuhiro ITO , Hideyuki EMOTO
Abstract: A phosphor plate including a base material, and a plate-shaped composite including phosphors dispersed in the base material, in which a main component of the base material is alumina, the phosphor includes an α-type sialon phosphor, and L* value satisfies 73.5 or more and 85.0 or less, a* value satisfies 4.4 or more and 8.0 or less, and b* value satisfies 10.8 or more and 13.0 or less in L*a*b* color coordinates of the phosphor plate in a case of being measured in accordance with JIS Z 8781-4.
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公开(公告)号：US20220399480A1
公开(公告)日：2022-12-15
申请号：US17769902
申请日：2020-10-07
Applicant: DENKA COMPANY LIMITED
Inventor： Taiyo YAMAURA , Yuki KUBOTA , Kazuhiro ITO , Hideyuki EMOTO
Abstract: A phosphor plate including: a complex containing an α-sialon phosphor and a sintered body containing spinel represented by a general formula M2xAl4-4xO6-4x (where M represents at least one of Mg, Mn, and Zn, and 0.2
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公开(公告)号：US20170012181A1
公开(公告)日：2017-01-12
申请号：US15121317
申请日：2015-02-25
Applicant: DENKA COMPANY LIMITED
Inventor： Hideyuki EMOTO , Shinichi YANAGI , Masayoshi ICHIKAWA , Kazuhiro ITO
CPC classification number: H01L33/502 , C09K11/617 , H01L33/50 , H01L33/501
Abstract: The present invention relates to an Mn4|-activated complex fluoride phosphor with improved moisture resistance due to modification of the particle surface, and a light emitting element and light emitting device having excellent color rendering properties and stability due to the use of this phosphor.The phosphor of the present invention is characterized in that it is represented by the general formula: A2MF6:Mn4−, wherein element A is an alkali metal element comprising at least K, element M is one or more metal elements chosen from among Si, Ge, Sn, Ti, Zr and Hf, F is fluorine, and Mn is manganese, wherein the phosphor comprises a Ca-containing compound on a particle surface.
Abstract translation: 本发明的荧光体的特征在于它由以下通式表示：A2MF6：Mn4-，其中元素A是包含至少K的碱金属元素，元素M是选自Si，Ge中的一种或多种金属元素 ，Sn，Ti，Zr和Hf，F是氟，Mn是锰，其中磷光体包括颗粒表面上的含Ca化合物。
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