公开(公告)号：US08066910B2

公开(公告)日：2011-11-29

申请号：US12662472

申请日：2010-04-19

申请人： Kenji Sakane ,  Akira Nagatomi ,  Masahiro Gotoh ,  Shuji Yamashita

发明人： Kenji Sakane ,  Akira Nagatomi ,  Masahiro Gotoh ,  Shuji Yamashita

IPC分类号： C09K11/59 ,  H01L33/00

CPC分类号： H05B33/14 ,  C09K11/0883 ,  C09K11/7734

摘要： To provide a phosphor having an emission characteristic such that a peak wavelength of light emission is in a range from 580 to 680 nm, and having a high emission intensity, and having a flat excitation band with high efficiency for excitation light in a broad wavelength range from ultraviolet to visible light (wavelength range from 250 nm to 550 nm). For example, Ca3N2(2N), AlN(3N), Si3N4(3N), Eu2O3(3N) are prepared, and after weighing and mixing a predetermined amount of each raw material, raw materials are fired at 1500° C. for 6 hours, thus obtaining the phosphor including a product phase expressed by a composition formula CaAlSiN3:Eu and having an X-ray diffraction pattern satisfying a predetermined pattern.

摘要翻译： 为了提供具有发光特性的荧光体，使得发光的峰值波长在580〜680nm的范围内，并且具有高的发光强度，并且对于宽波长范围的激发光具有高效率的平坦激发带 从紫外到可见光（波长范围从250nm到550nm）。 例如，制备Ca3N2（2N），AlN（3N），Si3N4（3N），Eu2O3（3N），称量混合规定量的原料后，将原料在1500℃下烧成6小时 从而获得包含由组成式CaAlSiN 3：Eu表示的具有满足预定图案的X射线衍射图案的产物相的荧光体。

公开(公告)号：US07138756B2

公开(公告)日：2006-11-21

申请号：US10949312

申请日：2004-09-27

申请人： Masahiro Gotoh ,  Akira Nagatomi ,  Kenji Sakane ,  Shuji Yamashita

发明人： Masahiro Gotoh ,  Akira Nagatomi ,  Kenji Sakane ,  Shuji Yamashita

IPC分类号： C09K11/08

CPC分类号： C09K11/7734 ,  C04B35/581 ,  C04B35/584 ,  C04B35/6262 ,  C04B2235/3224 ,  C04B2235/3852 ,  C04B2235/3865 ,  C04B2235/3873 ,  C04B2235/5436 ,  C09K11/7787 ,  H01J29/20

摘要： A phosphor, which has less reduction in emission efficiency and is capable of keeping high luminance even when density of an electron beam for exciting the phosphor increases, is provided. As raw materials, Ca3N2 (2N), AlN (3N), Si3N4 (3N), and Eu2O3 (3N) are prepared, and each of the raw materials is weighed so that a mole ratio of each element is, for example, (Ca+Eu):Al:Si=1:1:1, and mixed, then the mixture is held and fired at 1500° C. under the inert atmosphere for three hours, and thereafter ground to produce a phosphor having a composition formula of Ca0.985SiAlN3:Eu0.015

公开(公告)号：US20060065878A1

公开(公告)日：2006-03-30

申请号：US11211751

申请日：2005-08-26

申请人： Kenji Sakane ,  Akira Nagatomi ,  Masahiro Gotoh ,  Shuji Yamashita ,  Tetsuya Ikuta

发明人： Kenji Sakane ,  Akira Nagatomi ,  Masahiro Gotoh ,  Shuji Yamashita ,  Tetsuya Ikuta

IPC分类号： C09K11/08 ,  C09K11/54 ,  C09K11/66

CPC分类号： C09K11/7734 ,  C09K11/0883 ,  H01L33/502 ,  Y10T428/2991 ,  Y10T428/2993

摘要： To provide a phosphor having an emission spectrum with a broad peak in a range from yellow color to red color (580 nm to 680 nm) and an excellent excitation band on the longer wavelength side from near ultraviolet/ultraviolet of excitation light to visible light (250 nm to 550 nm), and having an improved emission intensity. The phosphor is provided, which is given by a general composition formula expressed by MmAaBbOoNn:Z, (wherein element M is more than one kind of element having bivalent valency, element A is more than one kind of element having tervalent valency selected from the group consisting of Al, Ga, In, Tl, Y, Sc, P, As, Sb, and Bi, element B is more than one kind of element having tetravalent valency, O is oxygen, N is nitrogen, and element Z is more than one kind of element selected from rare earth elements or transitional metal elements, satisfying m>0, a>0, b>0 o≧0, and n=2/3m+a+4/3b−2/3o), and further containing boron and/or fluorine.

公开(公告)号：US20050189863A1

公开(公告)日：2005-09-01

申请号：US10922082

申请日：2004-08-20

申请人： Akira Nagatomi ,  Kenji Sakane ,  Masahiro Gotoh ,  Shuji Yamashita

发明人： Akira Nagatomi ,  Kenji Sakane ,  Masahiro Gotoh ,  Shuji Yamashita

IPC分类号： C09K11/64 ,  C09K11/08 ,  C09K11/77 ,  H01L33/50 ,  H01L33/00

CPC分类号： C09K11/7734 ,  C09K11/0883

摘要： A phosphor with high efficiency having an excitation band corresponding to light of the ultraviolet-visible (300 to 550 nm) wavelength region emitted from a light emitting portion which emits blue or ultraviolet light is provided. A nitride of Ca, a nitride of Al, a nitride QfSi, and an oxide of Eu are prepared, and respective raw materials are weighed so that a mol ratio of respective elements becomes Ca:Al:Si:Eu=0.985:3:1:0.015, mixed under a nitrogen atmosphere, and thereafter fired at 1500° C. in a nitrogen atmosphere to thereby produce a phosphor having a composition formula Ca0.985SiAlN3:Eu0.015.

摘要翻译： 提供了具有与从发出蓝色或紫外光的发光部分发射的紫外 - 可见（300〜550nm）波长区域相对应的激发带的高效率荧光体。 制备Ca的氮化物，Al的氮化物，氮化物QfSi和Eu的氧化物，并称量各原料，使各元素的摩尔比变为Ca：Al:Si:Eu = 0.985:3:1 ：0.015，在氮气气氛下混合，然后在氮气气氛中在1500℃下烧制，从而制备具有组成式Ca 0.985 SiAlN 3·Eu的荧光体：Eu 0.015。

公开(公告)号：USRE44996E1

公开(公告)日：2014-07-08

申请号：US13414704

申请日：2012-03-07

申请人： Akira Nagatomi ,  Masahiro Gotoh ,  Kenji Sakane ,  Shuji Yamashita

发明人： Akira Nagatomi ,  Masahiro Gotoh ,  Kenji Sakane ,  Shuji Yamashita

IPC分类号： C09K11/59 ,  H01L33/00

CPC分类号： C04B35/597 ,  C04B2235/3208 ,  C04B2235/3224 ,  C04B2235/3852 ,  C04B2235/3865 ,  C04B2235/3869 ,  C04B2235/3873 ,  C04B2235/3895 ,  C04B2235/5436 ,  C09K11/7734

摘要： A phosphor including a main production phase of a phosphor expressed by a composition formula of MmAaBbOoNn:Zz (where an element M is one or more bivalent elements, an element A is one or more trivalent elements, an element B is one or more tetravalent elements, O is oxygen, N is nitrogen, an element Z is an activator, n=2/3m+a+4/3b−2/3o, m/(a+b)≧1/2, (o+n)/(a+b)>4/3, wherein m=a=b=1 and o and n is not 0). A phosphor including 24 wt % to 30 wt % of Ca (calcium), 17 wt % to 21 wt % of Al (aluminum), 18 wt % to 22 wt % of Si (silicon), 1 wt % to 15 wt % of oxygen, 15 wt % to 33 wt % of nitrogen and 0.01 wt % to 10 wt % of Eu (europium), wherein an emission maximum in an emission spectrum is in a range of 600 nm to 660 nm; and wherein color chromaticity x of light emission is in a range of 0.5 to 0.7, and color chromaticity y of the light emission is in a range of 0.3 to 0.5.

摘要翻译： 一种荧光体，其特征在于，具有由MmAaBbOoNn：Zz的组成式表示的荧光体的主要生成相（元素M为1个以上的2价元素，元素A为1个以上的3价元素，元素B为1个以上的四价元素 ，O是氧，N是氮，元素Z是活化剂，n = 2 / 3m + a + 4 / 3b-2 / 3o，m /（a + b）≥1/ 2，（o + n）/ （a + b）> 4/3，其中m = a = b = 1，o和n不为0）。 包含24重量％至30重量％的Ca（钙），17重量％至21重量％的Al（铝），18重量％至22重量％的Si（硅），1重量％至15重量％ 氧，15重量％至33重量％的氮和0.01重量％至10重量％的Eu（铕），其中发射光谱中的发射最大值在600nm至660nm的范围内; 并且其中发光的色度x在0.5至0.7的范围内，并且发光的色度y在0.3至0.5的范围内。

公开(公告)号：US20110115366A1

公开(公告)日：2011-05-19

申请号：US12929134

申请日：2011-01-03

申请人： Akira Nagatomi ,  Masahiro Gotoh ,  Kenji Sakane ,  Shuji Yamashita

发明人： Akira Nagatomi ,  Masahiro Gotoh ,  Kenji Sakane ,  Shuji Yamashita

IPC分类号： H01J1/62 ,  C09K11/77 ,  C09K11/08

CPC分类号： C09K11/0883 ,  C09K11/7734 ,  Y02B20/181

摘要： A phosphor having an excitation band relative to lights in the wide range of wavelengths from ultraviolet to visible light, and having an emission spectrum in the red range and so on, with a wide half value width, and an LED and a light source using the phosphor and emitting white and other color lights with good color rendering properties are provided. Powdered raw materials of Ca3N2 (2N), CaO (2N), AlN (3N), Si3N4 (3N), and Eu2O3 (3N) are prepared, and the respective raw materials are mixed to have a mole ratio of the respective elements of Ca:Al:Si:Eu=0.985:1:1:0.015. The mixed raw materials are fired at 1000° C. or higher in an inert atmosphere for three hours, and thereafter pulverized to obtain a phosphor having a composition of CaAlSiN2.83O0.25:Eu, which is one example of the phosphor satisfying the above described object. Furthermore, by combining the phosphor with an appropriate LED or a light source emitting from ultraviolet light to visible light, the LED and the light source emitting white and other color lights with good color rendering properties can be obtained.

公开(公告)号：US07884539B2

公开(公告)日：2011-02-08

申请号：US12216774

申请日：2008-07-10

申请人： Akira Nagatomi ,  Masahiro Gotoh ,  Kenji Sakane ,  Shuji Yamashita

发明人： Akira Nagatomi ,  Masahiro Gotoh ,  Kenji Sakane ,  Shuji Yamashita

IPC分类号： H01J1/62 ,  H01J63/04 ,  C09K11/02 ,  C09K11/08

CPC分类号： C09K11/0883 ,  C09K11/7734 ,  Y02B20/181

摘要： A phosphor having an excitation band relative to lights in the wide range of wavelengths from ultraviolet to visible light, and having an emission spectrum in the red range and so on, with a wide half value width, and an LED and a light source using the phosphor and emitting white and other color lights with good color rendering properties are provided. Powdered raw materials of Ca3N2 (2N), CaO (2N), AlN (3N), Si3N4 (3N), and Eu2O3 (3N) are prepared, and the respective raw materials are mixed to have a mole ratio of the respective elements of Ca:Al:Si:Eu=0.985:1:1:0.015. The mixed raw materials are fired at 1000° C. or higher in an inert atmosphere for three hours, and thereafter pulverized to obtain a phosphor having a composition of CaAlSiN2.83O0.25:Eu, which is one example of the phosphor satisfying the above described object. Furthermore, by combining the phosphor with an appropriate LED or a light source emitting from ultraviolet light to visible light, the LED and the light source emitting white and other color lights with good color rendering properties can be obtained.

摘要翻译： 具有相对于从紫外线到可见光的宽波长范围内的光的激发带的荧光体，具有宽半值宽度的红色范围等的发光光谱，以及使用该光源的LED和光源 提供了具有良好显色性能的荧光粉和发出白色等彩色灯。 制备Ca3N2（2N），CaO（2N），AlN（3N），Si3N4（3N）和Eu2O3（3N）的粉末原料，将各原料混合，使各元​​素的摩尔比 ：Al：Si：Eu = 0.985：1：1：0.015。 将混合的原料在惰性气氛中在1000℃以上煅烧3小时，然后粉碎，得到组成为CaAlSiN 2.83O 0.25：Eu的荧光体，其为满足上述的荧光体的一个例子 描述的对象。 此外，通过将荧光体与适当的LED或从紫外光发射到可见光的光源组合，可以获得发光白色和其它具有良好显色特性的彩色光的光源。

公开(公告)号：US20090109652A1

公开(公告)日：2009-04-30

申请号：US12292889

申请日：2008-11-28

申请人： Kenji Sakane ,  Akira Nagatomi ,  Masahiro Gotoh ,  Shuji Yamashita ,  Tetsuya Ikuta

发明人： Kenji Sakane ,  Akira Nagatomi ,  Masahiro Gotoh ,  Shuji Yamashita ,  Tetsuya Ikuta

IPC分类号： F21V9/08 ,  C09K11/61

CPC分类号： C09K11/7734 ,  C09K11/0883 ,  H01L33/502 ,  Y10T428/2991 ,  Y10T428/2993

摘要： To provide a phosphor having an emission spectrum with a broad peak in a range from yellow color to red color (580 nm to 680 nm) and an excellent excitation band on the longer wavelength side from near ultraviolet/ultraviolet of excitation light to visible light (250 nm to 550 nm), and having an improved emission intensity. The phosphor is provided, which is given by a general composition formula expressed by MmAaBbOoNn:Z, (wherein element M is more than one kind of element having bivalent valency, element A is more than one kind of element having tervalent valency selected from the group consisting of Al, Ga, In, Tl, Y, Sc, P, As, Sb, and Bi, element B is more than one kind of element having tetravalent valency, O is oxygen, N is nitrogen, and element Z is more than one kind of element selected from rare earth elements or transitional metal elements, satisfying m>0, a>0, b>0 o≧0, and n=2/3m+a+4/3b−2/3o), and further containing boron and/or fluorine.

公开(公告)号：US07476337B2

公开(公告)日：2009-01-13

申请号：US11182190

申请日：2005-07-15

申请人： Kenji Sakane ,  Akira Nagatomi ,  Masahiro Gotoh ,  Shuji Yamashita

发明人： Kenji Sakane ,  Akira Nagatomi ,  Masahiro Gotoh ,  Shuji Yamashita

IPC分类号： C09K11/08 ,  C09K11/59 ,  C09K11/64 ,  C09K11/55 ,  C09K11/54 ,  C09K11/62

CPC分类号： H05B33/14 ,  C09K11/0883 ,  C09K11/7734

摘要： To provide a phosphor having an emission characteristic such that a peak wavelength of light emission is in a range from 580 to 680 nm, and having a high emission intensity, and having a flat excitation band with high efficiency for excitation light in a broad wavelength range from ultraviolet to visible light (wavelength range from 250 nm to 550 nm). For example, Ca3N2(2N), AlN(3N), Si3N4(3N), Eu2O3(3N) are prepared, and after weighing and mixing a predetermined amount of each raw material, raw materials are fired at 1500° C. for 6 hours, thus obtaining the phosphor including a product phase expressed by a composition formula CaAlSiN3:Eu and having an X-ray diffraction pattern satisfying a predetermined pattern.

摘要翻译： 为了提供具有发光特性的荧光体，使得发光的峰值波长在580〜680nm的范围内，并且具有高的发光强度，并且对于宽波长范围的激发光具有高效率的平坦激发带 从紫外到可见光（波长范围从250nm到550nm）。 例如，制备Ca3N2（2N），AlN（3N），Si3N4（3N），Eu2O3（3N），称量混合规定量的原料后，将原料在1500℃下烧成6小时 从而获得包含由组成式CaAlSiN 3：Eu表示的具有满足预定图案的X射线衍射图案的产物相的荧光体。

公开(公告)号：US07273568B2

公开(公告)日：2007-09-25

申请号：US10922085

申请日：2004-08-20

申请人： Akira Nagatomi ,  Masahiro Gotoh ,  Kenji Sakane ,  Shuji Yamashita

发明人： Akira Nagatomi ,  Masahiro Gotoh ,  Kenji Sakane ,  Shuji Yamashita

IPC分类号： C09K11/59 ,  H01L33/00

CPC分类号： C04B35/597 ,  C04B2235/3208 ,  C04B2235/3224 ,  C04B2235/3852 ,  C04B2235/3865 ,  C04B2235/3869 ,  C04B2235/3873 ,  C04B2235/3895 ,  C04B2235/5436 ,  C09K11/7734

摘要： A phosphor including a main production phase of a phosphor expressed by a composition formula of MmAaBbOoNn:Zz (where an element M is one or more bivalent elements, an element A is one or more trivalent elements, an element B is one or more tetravalent elements, O is oxygen, N is nitrogen, an element Z is an activator, n=2/3m+a+4/3b−2/3o, m/(a+b)≧1/2, (o+n)/(a+b)>4/3, wherein m=a=b=1 and o and n is not 0). A phosphor including 24 wt % to 30 wt % of Ca (calcium), 17 wt % to 21 wt % of Al (aluminum), 18 wt % to 22 wt % of Si (silicon), 1 wt % to 15 wt % of oxygen, 15 wt % to 33 wt % of nitrogen and 0.01 wt % to 10 wt % of Eu (europium), wherein an emission maximum in an emission spectrum is in a range of 600 nm to 660 nm; and wherein color chromaticity x of light emission is in a range of 0.5 to 0.7, and color chromaticity y of the light emission is in a range of 0.3 to 0.5.

摘要翻译： 一种荧光体，其特征在于，具有由MmAaBbOoNn：Zz的组成式表示的荧光体的主要生成相（元素M为1个以上的2价元素，元素A为1个以上的3价元素，元素B为1个以上的四价元素 ，O是氧，N是氮，元素Z是活化剂，n = 2 / 3m + a + 4 / 3b-2 / 3o，m /（a + b）> = 1/2，（o + n） /（a + b）> 4/3，其中m = a = b = 1，o和n不为0）。 包含24重量％至30重量％的Ca（钙），17重量％至21重量％的Al（铝），18重量％至22重量％的Si（硅），1重量％至15重量％ 氧，15重量％至33重量％的氮和0.01重量％至10重量％的Eu（铕），其中发射光谱中的发射最大值在600nm至660nm的范围内; 并且其中发光的色度x在0.5至0.7的范围内，并且发光的色度y在0.3至0.5的范围内。