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公开(公告)号：US10711186B2
公开(公告)日：2020-07-14
申请号：US15659738
申请日：2017-07-26
摘要： Embodiments of the present invention provide a phosphor improved in the emission intensity maintenance ratio without impairing the emission intensity and further a light-emitting device employing that phosphor. The phosphor is activated by manganese and has a basic structure comprising at least one element selected from the group consisting of potassium, sodium and calcium; at least one element selected from the group consisting of silicon and titanium; and fluorine. In an IR absorption spectrum of the phosphor, the intensity ratio of the peak in 3570 to 3610 cm−1 to that in 1200 to 1240 cm−1 is 0.1 or less.
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公开(公告)号：US20140339978A1
公开(公告)日：2014-11-20
申请号：US14184890
申请日：2014-02-20
发明人： Aoi Okada , Masahiro Kato , Keiko Albessard , Yumi Fukuda , Iwao Mitsuishi , Yasushi Hattori
CPC分类号： C09K11/7715 , C09K11/0883 , C09K11/7721 , F21K9/64 , H01L33/502 , H01L2224/45144 , H01L2224/48091 , H01L2224/8592 , H01L2924/181 , H01L2924/00012 , H01L2924/00014 , H01L2924/00
摘要： According to one embodiment, the phosphor exhibits a luminescence peak within a wavelength range of 500 to 600 nm when it is excited with light having an emission peak within a wavelength range of 250 to 500 nm. The phosphor has a composition represented by (M1-xCex)2yAlzSi10-zOuNwBs (M represents Sr and a part of Sr may be substituted by at least one selected from the group consisting of Ba, Ca and Mg; and x, y, z, u, w and s satisfy 0
摘要翻译： 根据一个实施方案，当用具有在250至500nm的波长范围内的发射峰的光激发时，荧光体在500至600nm的波长范围内显示出发光峰。 荧光体具有由（M1-xCex）2yAlzSi10-zOuNwBs表示的组成（M表示Sr，Sr的一部分可以被选自Ba，Ca和Mg中的至少一种取代; x，y，z， u，w和s满足0
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公开(公告)号：US11961631B2
公开(公告)日：2024-04-16
申请号：US17689455
申请日：2022-03-08
摘要： A connection structure of a superconducting layer according to an embodiment includes a first superconducting layer, a second superconducting layer, and a connection layer provided between the first superconducting layer and the second superconducting layer and including a first substance containing a rare earth element, barium, copper, and oxygen and a second substance containing a metal element, in which a first region per unit area at a first interface between the first superconducting layer and the connection layer is 1% or more and 50% or less where the second substance and the first superconducting layer are in contact with each other, and a second region per unit area at a second interface between the second superconducting layer and the connection layer is 1% or more and 50% or less where the second substance and the second superconducting layer are in contact with each other.
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公开(公告)号：US20140265819A1
公开(公告)日：2014-09-18
申请号：US14193305
申请日：2014-02-28
发明人： Keiko ALBESSARD , Yumi FUKUDA , Kunio ISHIDA , Iwao Mitsuishi , Naotoshi Matsuda , Aoi Okada , Yasushi Hattori , Ryosuke Hiramatsu , Masahiro Kato
CPC分类号： F21V9/30 , C09K11/7721 , H01L33/502 , H01L33/504 , H01L33/507 , H01L2224/45144 , H01L2224/48091 , H01L2224/48247 , H01L2224/8592 , H01L2924/181 , H01L2924/00012 , H01L2924/00014 , H01L2924/00
摘要： The embodiment of the present disclosure provides a phosphor having such high luminous efficiency as to be capable of realizing a light-emitting device suffering less from color drift even when working with high power. This phosphor is a Ce-activated phosphor having a crystal structure of Sr2Si7Al3ON13, and emitting luminescence with a peak wavelength of 500 to 600 nm under excitation by light with a peak wavelength of 250 to 500 nm. The XRD profile of the phosphor measured with Cu—Kα line radiation according to Bragg-Brendano method shows diffraction lines having the intensities I0 and I1 at diffraction angles 2θs in the ranges of 31.55-31.85° and 24.75-250.5°, respectively, on the condition that the ratio of I1/I0 is 0.24 or less.
摘要翻译： 本公开的实施例提供了一种具有如此高的发光效率的荧光体，即使在高功率工作时也能够实现少量色漂的发光器件。 该荧光体是具有Sr 2 Si 7 Al 3 ON 13的结晶结构的Ce活化荧光体，在峰值波长为250〜500nm的光的激发下发射峰值波长为500〜600nm的发光。 根据Bragg-Brendano方法用Cu-Kα线辐射测量的荧光体的XRD曲线分别示出了在衍射角2θ处的强度I0和I1的衍射线分别在31.55-31.85°和24.75-250.5°的范围内， 在I1 / I0的比例为0.24以下的条件下。
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公开(公告)号：US11355416B2
公开(公告)日：2022-06-07
申请号：US17007087
申请日：2020-08-31
发明人： Yumi Fukuda , Koichi Harada , Yasushi Hattori , Maki Yonetsu , Kenji Essaki , Keiko Albessard , Yasuhiro Goto
IPC分类号： H01L23/373
摘要： A structure includes: a β silicon nitride crystal phase; and a Y2MgSi2O5N crystal phase. The structure gives a X-ray diffraction pattern by a θ-2θ method, the pattern having a ratio of a peak intensity of a (22-1) plane of the Y2MgSi2O5N crystal phase to a peak intensity of a (200) plane of the β silicon nitride crystal phase, the peak intensity of the (200) plane being determined at a position of 2θ=27.0±1°, the peak intensity of the (22-1) plane being determined at a position of 2θ=30.3±1°, and the ratio being 0.001 or more and 0.01 or less.
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公开(公告)号：US10032967B2
公开(公告)日：2018-07-24
申请号：US15454107
申请日：2017-03-09
摘要： A phosphor comprising: a chemical composition expressed by the following formula (K1-p, Mp)a(Si1-y, Mny)Fb (M is at least one element selected from the group consisting of Na and Ca, and p satisfies 0≤p≤0.01, a satisfies 1.5≤a≤2.5, b satisfies 5.5≤b≤6.5, and y satisfies 0
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公开(公告)号：US09520540B2
公开(公告)日：2016-12-13
申请号：US14184881
申请日：2014-02-20
发明人： Kunio Ishida , Keiko Albessard , Yasushi Hattori , Iwao Mitsuishi , Yumi Fukuda , Ryosuke Hiramatsu , Aoi Okada , Masahiro Kato
CPC分类号： H01L33/504 , C09K11/7721 , C09K11/7734 , H01L33/502
摘要： A light-emitting device of an embodiment includes a light-emitting element emitting blue excitation light and a first phosphor excited by the blue excitation light and emitting fluorescence. A peak wavelength of the fluorescence is not shorter than 520 nm and shorter than 660 nm and the peak wavelength of the fluorescence shifting in the same direction when a peak wavelength of the blue excitation light shifts. The first phosphor is one of a yellow phosphor emitting yellow fluorescence, a green phosphor emitting green fluorescence, a yellow-green/yellow phosphor emitting yellow-green/yellow fluorescence and a red phosphor emitting red fluorescence.
摘要翻译： 实施例的发光装置包括发射蓝色激发光的发光元件和由蓝色激发光激发并发射荧光的第一荧光体。 当蓝色激发光的峰值波长偏移时，荧光的峰值波长不小于520nm且小于660nm，并且荧光的峰值波长在相同方向上移动。 第一荧光体是发出黄色荧光的黄色荧光体，发出绿色荧光的绿色荧光体，发出黄绿色/黄色荧光物质的黄绿色/黄色荧光体和发出红色荧光物质的红色荧光体之一。
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公开(公告)号：US09190582B2
公开(公告)日：2015-11-17
申请号：US14203982
申请日：2014-03-11
发明人： Yasushi Hattori , Masahiro Kato , Yumi Fukuda , Iwao Mitsuishi
CPC分类号： H01L33/504 , C09K11/0883 , C09K11/7721 , H01L33/507 , H01L33/54 , H01L33/56 , H01L2224/45144 , H01L2224/48091 , H05B33/14 , Y02B20/181 , H01L2924/00014 , H01L2924/00
摘要： A light emitting device according to embodiments includes a light emitting element emitting light having a peak wavelength of 425 nm or more and 465 nm or less, a first phosphor emitting light having a peak wavelength of 485 nm or more and 530 nm or less, a second phosphor emitting light having a peak wavelength longer than that of the first phosphor, and a third phosphor emitting light having a peak wavelength longer than that of the second phosphor. Then, when the peak wavelength of the light emitting element is λ0 (nm) and the peak wavelength of the first phosphor is λ1 (nm), a relation of 30≦λ1−λ0≦70 is satisfied.
摘要翻译： 根据实施例的发光器件包括发射具有425nm以上且465nm以下的峰值波长的光的发光元件，具有485nm以上且530nm以下的峰值波长的第一荧光体发射光， 第二荧光体发射具有比第一荧光体长的峰值波长的光，以及发射具有比第二荧光体的波长更长的峰值波长的光的第三荧光体。 然后，当发光元件的峰值波长为λ0（nm）且第一荧光体的峰值波长为λ1（nm）时，满足30＆lt; lE;λ1-λ0＆nlE; 70的关系。
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公开(公告)号：US20150318451A1
公开(公告)日：2015-11-05
申请号：US14696766
申请日：2015-04-27
发明人： Kunio ISHIDA , Keiko Albessard , Yasushi Hattori , Masahiro Kato
CPC分类号： H01L33/502 , C09K11/0883 , C09K11/7721 , C09K11/7734 , H01L33/504 , H01L33/56
摘要： A light emitting device of an embodiment includes a light emitting element emitting near-ultraviolet light or blue light as exciting light; and a yellow color conversion layer including a yellow phosphor and a resin, the yellow phosphor represented by formula (1) and being capable of converting the exciting light to yellow light, the resin surrounding the yellow phosphor, the yellow color conversion layer containing the yellow phosphor at a volume concentration of at most 7%, the yellow color conversion layer having a region whose cross section parallel to a light emitting surface of the light emitting element has an area larger than the light emitting surface, (Sr1-x1Cex1)a1AlSib1Oc1Nd1 (1) wherein x1, a1, b1, c1, and d1 satisfy following relations: 0
摘要翻译： 实施例的发光装置包括发射近紫外光或蓝光作为激发光的发光元件; 以及包含黄色荧光体和树脂的黄色变色层，由式（1）表示的黄色荧光体，能够将激发光转换成黄色的光，包围黄色荧光体的树脂，含有黄色荧光体的黄色转换层 荧光体的体积浓度为7％以下，具有与发光元件的发光面平行的截面的区域的黄色转换层的面积大于发光面的区域（Sr1-x1Cex1）a1AlSib1Oc1Nd1（ 1）其中x1，a1，b1，c1和d1满足以下关系：0
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10.发明申请PHOSPHOR, METHOD FOR PRODUCING THE SAME, AND LIGHT-EMITTING DEVICE EMPLOYING THE SAME 审中-公开磷光体，其制造方法和使用其的发光装置公开(公告)号：US20150259594A1
公开(公告)日：2015-09-17
申请号：US14641885
申请日：2015-03-09
发明人： Aoi Okada , Masahiro Kato , Yasushi Hattori
IPC分类号： C09K11/77
CPC分类号： C09K11/7721 , C09K11/0883 , H01L33/502 , H01L2224/45144 , H01L2224/48091 , H01L2224/48247 , H01L2224/8592 , H01L2924/00014 , H01L2924/00
摘要： The embodiment of the present disclosure provides a phosphor exhibiting an emission peak in the wavelength range of 500 to 600 nm under excitation by light having a peak in the wavelength range of 250 to 500 nm. This phosphor is in the form of particles having a median size of 5 to 40 μm inclusive, shows a luminous efficiency of more than 70%, and has a composition represented by the following formula (1): ((SrpM1-p)1-xCex)2yAlzSi10-zOuNw (1). In the formula, M is at least one of the alkaline earth metals, and p, x, y, z, u and w satisfy the conditions of 0≦p≦1, 0
摘要翻译： 本公开的实施方案提供了在波长范围为250至500nm的光的激发下，在500至600nm的波长范围内显示出发射峰的荧光体。 该荧光体为中值粒径为5〜40μm的粒子，发光效率大于70％，具有下述式（1）表示的组成：（（SrpM1-p）1- xCex）2yAlzSi10-zOuNw（1）。 在该式中，M是碱土金属中的至少一种，p，x，y，z，u和w满足0＆lt; nlE; p＆nlE; 1,0
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