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    FLUORIDE PHOSPHOR, COMPLEX, AND LIGHT-EMITTING DEVICE
    2.
    发明公开
    FLUORIDE PHOSPHOR, COMPLEX, AND LIGHT-EMITTING DEVICE 审中-公开

    公开(公告)号：US20230313035A1

    公开(公告)日：2023-10-05

    申请号：US18022701

    申请日：2021-08-16

    Applicant: DENKA COMPANY LIMITED

    Inventor： Masayoshi ICHIKAWA ,  Shunsuke MITANI

    IPC: C09K11/61 ,  H01L33/50

    CPC classification number: C09K11/616 ,  H01L33/502

    Abstract: A fluoride phosphor, a composition of which is represented by General Formula (1), in which in a case where a cumulative 50% value is denoted by D50 and a cumulative 90% value is denoted by D90 in a volume-based particle size distribution curve obtained by a laser diffraction scattering method, D50 is 0.1 to 9.5 μm and D90 is 0.5 to 16 μm. General Formula (1): A2M(1-f)F6:Mn4+n In General Formula (1), an element A is one or more alkali metal elements including K, an element M is a Si simple substance, a Ge simple substance, or a combination of Si and one or more elements selected from the group consisting of Ge, Sn, Ti, Zr, and Hf, and 0

    PHOSPHOR, LIGHT EMITTING ELEMENT, AND LIGHT EMITTING DEVICE
    3.
    发明申请
    PHOSPHOR, LIGHT EMITTING ELEMENT, AND LIGHT EMITTING DEVICE 有权
    磷光体，发光元件和发光器件

    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

    IPC: H01L33/50 ,  C09K11/61

    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。

    PHOSPHOR AND LIGHT-EMITTING DEVICE
    5.
    发明申请
    PHOSPHOR AND LIGHT-EMITTING DEVICE 审中-公开

    公开(公告)号：US20180086973A1

    公开(公告)日：2018-03-29

    申请号：US15544679

    申请日：2016-01-19

    Applicant: Denka Company Limited

    Inventor： Ryosuke KONDO ,  Masayoshi ICHIKAWA ,  Hideyuki EMOTO ,  Motoi TANAKA

    IPC: C09K11/02 ,  C09K11/61 ,  H01L33/50

    CPC classification number: C09K11/025 ,  C09K11/617 ,  H01L33/502

    Abstract: Provided is a phosphor that emits red light, is represented by the general formula, A2MF6:Mn, and exhibits little reduction in intensity even when exposed to a high-temperature, high-humidity atmosphere over a long period of time. Also provided is a light-emitting device using said phosphor. The present invention is a phosphor in which the main crystal phase thereof is represented by the general formula, A2MF6:Mn. The element A is an alkali metal element including at least K, and the element M is one or more tetravalent elements selected from the group consisting of Si, Ge, Sn, Ti, Zr, and Hf. The phosphor has a coating layer on the surface thereof. The coating layer is a hydrophobic organic substance having a hydrophobicity of 10% or more.

    Phosphor, Light Emitting Element, and Light Emitting Device
    6.
    发明申请
    Phosphor, Light Emitting Element, and Light Emitting Device 有权
    荧光体，发光元件和发光元件

    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

    IPC: C09K11/61 ,  H01L33/50

    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。

    FLUORIDE PHOSPHORS AND LIGHT EMITTING DEVICES USING THE SAME
    8.
    发明申请
    FLUORIDE PHOSPHORS AND LIGHT EMITTING DEVICES USING THE SAME 审中-公开

    公开(公告)号：US20190071602A1

    公开(公告)日：2019-03-07

    申请号：US16111460

    申请日：2018-08-24

    Applicant: DENKA COMPANY LIMITED

    Inventor： Shunsuke MITANI ,  Masayoshi ICHIKAWA

    IPC: C09K11/61 ,  H01L33/50

    Abstract: Provided is a fluoride phosphor having a composition represented by the general formula (1): A2SiF6:Mn4+  (1) in which A represents at least one alkali metal comprising at least K. The fluoride phosphor has a ratio (A1/A2) of an area (A1) of a spectrum in a range of from 645 eV or more to less than 651 eV in XPS measurement to an area (A2) of a spectrum in a range of from 682.8 eV or more to less than 690 eV in XPS measurement, of 0.0005 to 0.0010.

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