-
公开(公告)号：US20230242814A1
公开(公告)日：2023-08-03
申请号：US18012053
申请日：2021-06-17
Applicant: DENKA COMPANY LIMITED
Inventor： Hideyuki EMOTO
CPC classification number: C09K11/77348 , H01L33/502
Abstract: A phosphor contains an inorganic compound in which Eu as an activator is solid-soluted in an inorganic crystal having a crystal represented by Li1Ba2Al1Si7N12 or the same crystal structure as the crystal represented by Li1Ba2Al1Si7N12, in which in an X-ray diffraction pattern of the phosphor measured using a Cu-Kα ray, I1 and I2 satisfy 0
-
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.
-
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
-
公开(公告)号：US20190062631A1
公开(公告)日：2019-02-28
申请号：US16070222
申请日：2017-01-13
Applicant: Denka Company Limited
Inventor： Keita KOBAYASHI , Hideyuki EMOTO
Abstract: Provided are a phosphor having long-term reliability and high luminance, and a white light emitting device using the phosphor. In a β-type SiAlON phosphor (a), the volume median particle size D50 [μm] and the average particle size R [μm] calculated from a surface area measured by an air permeability method satisfy the following formula (1): D50/R
-
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。
-
Patent Agency Ranking
公开(公告)号：US20240010914A1
公开(公告)日：2024-01-11
申请号：US18035425
申请日：2021-11-04
Applicant: DENKA COMPANY LIMITED
Inventor： Hideyuki EMOTO
IPC: C09K11/77 , C01B21/082 , H01L33/50
CPC classification number: C09K11/77218 , C01B21/0826 , H01L33/502 , C01P2006/60 , C01P2002/54 , C01P2004/51 , C01P2004/61 , C01P2002/72
Abstract: A phosphor powder including phosphor particles of a phosphor represented by a general formula Mx(Si, Al)2(N, O)3±y and in which a part of M is substituted with a Ce element, the phosphor powder includes phosphor particles in which a Si/AI atomic ratio is equal to or more than 1.5 and equal to or less than 6, an O/N atomic ratio is equal to or more than 0 and equal to or less than 0.1, 5 to 50 mol % of M is Li, and 0.5 to 10 mol % of M is Ce. In a case where a volume-based cumulative 10% particle size, a volume-based cumulative 50% particle size, and a volume-based cumulative 90% particle size of this phosphor powder measured by a laser diffraction scattering method are defined as D10, D50, and D90, respectively, (D90-D10)/D50 is equal to or more than 0.7 and equal to or less than 1.1.
-
公开(公告)号：US20240002721A1
公开(公告)日：2024-01-04
申请号：US18039675
申请日：2021-11-11
Applicant: DENKA COMPANY LIMITED
Inventor： Hideyuki EMOTO
CPC classification number: C09K11/77218 , C01B21/0602 , H01L33/502 , C01P2002/52 , C01P2006/60 , C01P2004/61
Abstract: A phosphor powder including phosphor particles which are a phosphor represented by a general formula Mx(Si, Al)2(N, O)3±y (where M is Li and one or more alkaline earth metal elements and 0.52≤x≤0.9 and 0.06≤y≤0.36 are satisfied) and in which a part of M is substituted with a Ce element, wherein a Si/Al atomic ratio is equal to or more than 1.5 and equal to or less than 6, an O/N atomic ratio is equal to or more than 0 and equal to or less than 0.1, 5 to 50 mol % of M is Li, and 0.5 to 10 mol % of M is Ce, and a total content of a Cr element, a Fe element, and a Ni element in the phosphor powder is equal to or less than 20.0 ppm.
-
公开(公告)号：US20230407172A1
公开(公告)日：2023-12-21
申请号：US18035593
申请日：2021-11-04
Applicant: DENKA COMPANY LIMITED
Inventor： Hideyuki EMOTO
IPC: C09K11/77
CPC classification number: C09K11/77218
Abstract: A phosphor powder including phosphor particles of a phosphor which is represented by a general formula Mx(Si, Al)2(N, O)3±y (where M is Li and one or more alkaline earth metal elements and 0.52≤x≤0.9 and 0.06≤y≤0.36 are satisfied) and in which a part of M is substituted with a Ce element, the phosphor powder includes phosphor particles in which a Si/Al atomic ratio is equal to or more than 1.5 and equal to or less than 6, an O/N atomic ratio is equal to or more than 0 and equal to or less than 0.1, 5 to 50 mol % of M is Li, and 0.5 to 10 mol % of M is Ce. A light absorption A700 of this phosphor powder at a wavelength of 700 nm is equal to or less than 10%.
-
公开(公告)号：US20200095501A1
公开(公告)日：2020-03-26
申请号：US16620190
申请日：2018-06-12
Applicant: Denka Company Limited
Inventor： Masayoshi ICHIKAWA , Ryosuke KONDA , Hideyuki EMOTO
Abstract: Provided is a fluoride phosphor that has a good external quantum efficiency and is suitable for stably producing white LEDs. The fluoride phosphor having a composition represented by a general formula (1), a bulk density of 0.80 g/cm3 or more, and a mass median diameter (D50) of 30 μm or less: general formula: A2M(1−n)F6:Mn4+n (1), wherein 0
-
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.
-
-
-
-
-
-
-
-
-
Search Results
15
records
(took 0.013 seconds)
