公开(公告)号：US20170170371A1

公开(公告)日：2017-06-15

申请号：US15374234

申请日：2016-12-09

Applicant: NICHIA CORPORATION

Inventor： Hiroshi IWATA ,  Shoji HOSOKAWA

IPC: H01L33/50 ,  H01L33/56 ,  H01L33/60 ,  H01L33/62

CPC classification number: H01L33/504 ,  H01L33/54 ,  H01L33/56 ,  H01L33/60 ,  H01L33/62 ,  H01L2224/16225 ,  H01L2933/0041 ,  H01L2933/005 ,  H01L2933/0058 ,  H01L2933/0066

Abstract: A light emitting device manufacturing method includes bonding an electrode of a light emitting element to a conductive member of a base. First wavelength conversion particles, second wavelength conversion particles and filling particles are electrodeposited on a surface of the light emitting element to form a wavelength conversion layer in which the filling particles are disposed among the first wavelength conversion particles and the second wavelength conversion particles. The first wavelength conversion particles contain aluminum. The second wavelength conversion particles have surfaces covered with covering material which contains aluminum. The filling particles contain aluminum. The filling particles have particle size smaller than particle sizes of both the first wavelength conversion particles and the second wavelength conversion particles. The filling particles have aspect ratio smaller than aspect ratios of both the first wavelength conversion particles and the second wavelength conversion particles.

公开(公告)号：US20170090095A1

公开(公告)日：2017-03-30

申请号：US15277498

申请日：2016-09-27

Applicant: NICHIA CORPORATION

Inventor： Daisuke IWAKURA ,  Masaki HAYASHI ,  Shoji HOSOKAWA ,  Yusaku ACHI

IPC: F21V8/00 ,  H01L33/52 ,  H01L33/50

CPC classification number: H01L33/50 ,  G02B6/0031 ,  G02B6/0073 ,  G02F1/133603 ,  G02F1/133615 ,  G02F2001/133614 ,  G02F2001/133624 ,  H01L33/44 ,  H01L33/52 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2924/00014

Abstract: A light source device having; a blue light emitting element that emits blue light having an emission peak in a wavelength region of 440 nm to 460 nm; a green phosphor that absorbs part of the blue light emitted by the blue light emitting element and thereby emits green light having an emission peak in a wavelength region of 500 nm to 575 nm; a red phosphor that absorbs at least one of part of the blue light emitted by the blue light emitting element and part of the green light emitted by the green phosphor, and thereby emits red light having an emission peak in a wavelength region of 600 nm to 690 nm; and an absorbent containing neodymium fluoride that absorbs part of the green light and part of the red light.

公开(公告)号：US20170058197A1

公开(公告)日：2017-03-02

申请号：US15247083

申请日：2016-08-25

Applicant: NICHIA CORPORATION

Inventor： Kazuya NISHIMATA ,  Hiroyuki WATANABE ,  Shoji HOSOKAWA

IPC: C09K11/77 ,  H01L33/50 ,  H01L33/62 ,  H01L33/32 ,  H01L33/48 ,  C09K11/08 ,  H01L33/56

CPC classification number: C09K11/7734 ,  C09K11/0833 ,  C09K11/0883 ,  H01L33/32 ,  H01L33/486 ,  H01L33/502 ,  H01L33/504 ,  H01L33/56 ,  H01L33/62 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2933/0041 ,  H01L2924/00014

Abstract: A method for producing a nitride fluorescent material having high emission luminance can be provided. The method includes heat-treating a raw material mixture containing silicon nitride, silicon, an aluminium compound, a calcium compound, and a europium compound.

Abstract translation: 可以提供具有高发光亮度的氮化物荧光材料的制造方法。 该方法包括对含有氮化硅，硅，铝化合物，钙化合物和铕化合物的原料混合物进行热处理。

公开(公告)号：US20170037311A1

公开(公告)日：2017-02-09

申请号：US15228109

申请日：2016-08-04

Applicant: NICHIA CORPORATION

Inventor： Shoji HOSOKAWA ,  Motoharu MORIKAWA ,  Tadayoshi YANAGIHARA ,  Kenichi AOYAGI ,  Takashi KAIDE

IPC: C09K11/77 ,  C09K11/08

CPC classification number: C09K11/7734 ,  C09K11/0883

Abstract: A method for producing a β-sialon fluorescent material can be provided. The method includes preparing a composition containing silicon nitride that contains aluminium, an oxygen atom, and europium, heat-treating the composition in a rare gas atmosphere or in a vacuum, and contacting the heat-treated composition with a gas containing elemental fluorine.

Abstract translation: 可以提供β-赛隆荧光体的制造方法。 该方法包括制备含有铝，氧原子和铕的氮化硅的组合物，在稀有气体气氛或真空中对组合物进行热处理，并使热处理组合物与含有元素氟的气体接触。

公开(公告)号：US20170005239A1

公开(公告)日：2017-01-05

申请号：US15196964

申请日：2016-06-29

Applicant: NICHIA CORPORATION

Inventor： Kenji ASAI ,  Hiroyuki WATANABE ,  Shoji HOSOKAWA

IPC: H01L33/50

CPC classification number: H01L33/504 ,  C09K11/00 ,  C09K11/7734 ,  C09K11/7774 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2924/181 ,  H05B33/14 ,  H01L2924/00014 ,  H01L2924/00012

Abstract: A light emitting device includes a light emitting element of a peak emission wavelength in a range of 430 nm to 470 nm and a fluorescent member. The fluorescent member includes a first phosphor including a silicate having a composition that contains at least one element selected from the group consisting of Ca, Sr, and Ba, at least one element selected from the group consisting of Cl, F, and Br, and Mg and Eu, a second phosphor including an aluminate that has a composition containing Lu and Ce, and a third phosphor having emission spectrum with a half bandwidth of 86 nm or less and including a silicon nitride that has a composition containing at least one of Sr or Ca, and containing Al and Eu.

Abstract translation: 发光器件包括在430nm至470nm的范围内的峰值发射波长的发光元件和荧光部件。 荧光体包括含有具有选自Ca，Sr和Ba中的至少一种元素的组成的硅酸盐的第一荧光体，选自Cl，F和Br中的至少一种元素，以及 Mg和Eu，包含具有含有Lu和Ce的组成的铝酸盐的第二荧光体和具有86nm或更小的半带宽的发射光谱的第三荧光体，并且包括具有包含Sr的至少一种的组成的氮化硅 或Ca，并含有Al和Eu。

公开(公告)号：US20160009991A1

公开(公告)日：2016-01-14

申请号：US14793056

申请日：2015-07-07

Applicant: NICHIA CORPORATION

Inventor： Takashi KAIDE ,  Shoji HOSOKAWA

IPC: C09K11/77 ,  H01L33/50

CPC classification number: C09K11/7774 ,  C09K11/0883 ,  H01L33/502 ,  H01L2224/32245 ,  H01L2224/48091 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2924/181 ,  H01L2924/00012 ,  H01L2924/00

Abstract: A fluorescent material is provided that has improved luminance and can generate fluorescence by excitation light in wider wavelength range. A fluorescent material represented by a general formula LaxCeySi6N8+x+y, wherein 2.0≦x≦3.5, 0

Abstract translation: 提供了具有改善的亮度的荧光材料，并且可以通过在较宽波长范围内的激发光产生荧光。 由通式LaxCeySi6N8 + x + y表示的荧光材料，其中2.0和nlE; x和nlE; 3.5,0

公开(公告)号：US20150349213A1

公开(公告)日：2015-12-03

申请号：US14724118

申请日：2015-05-28

Applicant: NICHIA CORPORATION

Inventor： Shoji HOSOKAWA ,  Masafumi SAKAMOTO ,  Tomokazu YOSHIDA

IPC: H01L33/50 ,  C09K11/77 ,  C09K11/66

CPC classification number: H01L33/504 ,  C09K11/0883 ,  C09K11/665 ,  C09K11/7707 ,  C09K11/7731 ,  C09K11/7734 ,  H01L33/502 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  Y10T428/2982

Abstract: A red phosphor including the composition represented by the following general formula. (x−a)MgO.(a/2)Sc2O3.yMgF2.cCaF2.(1−b)GeO2.(b/2)Mt2O3:zMn4+ where x, y, z, a, b, and c satisfy 2.0≦x≦4.0, 0

Abstract translation: 包含由以下通式表示的组合物的红色荧光体。 （x-a）MgO（a / 2）Sc2O3.yMgF2.cCaF2（1-b）GeO2（b / 2）Mt2O3：zMn4 +其中x，y，z，a，b和c满足2.0＆ x

公开(公告)号：US20140319568A1

公开(公告)日：2014-10-30

申请号：US14261638

申请日：2014-04-25

Applicant: NICHIA CORPORATION

Inventor： Takashi KAIDE ,  Shoji HOSOKAWA

IPC: H01L33/50 ,  C09K11/77

CPC classification number: H01L33/502 ,  C09K11/7766 ,  C09K11/7774 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2924/00014

Abstract: A phosphor is provided which is represented by the general formula MxCeyPrzSi6N8+w. M is at least one element selected from the group consisting of La, Y, Tb and Lu. And x, y, z and w satisfy 2.0

Abstract translation: 提供了由通式MxCeyPrzSi6N8 + w表示的荧光体。 M是选自La，Y，Tb和Lu中的至少一种元素。 而x，y，z和w分别满足2.0

公开(公告)号：US20230045233A1

公开(公告)日：2023-02-09

申请号：US17937766

申请日：2022-10-03

Applicant: NICHIA CORPORATION

Inventor： Kenichi AOYAGI ,  Takashi KAIDE ,  Yuya TAKAHASHI ,  Shoji HOSOKAWA

IPC: C01B21/082 ,  C01F17/30 ,  C09K11/08 ,  C09K11/77

Abstract: Provided a method of producing a β-sialon fluorescent material having excellent emission intensity. The method includes providing a first composition containing aluminum, an oxygen atom, and a europium-containing silicon nitride, heat treating the first composition, contacting the heat-treated composition and a basic substance to obtain a second composition, and contacting the second composition resulting from contacting the heat-treated composition with the basic substance and an acidic liquid medium containing an acidic substance.

公开(公告)号：US20210095203A1

公开(公告)日：2021-04-01

申请号：US17120662

申请日：2020-12-14

Applicant: NICHIA CORPORATION

Inventor： Kenichi AOYAGI ,  Takashi KAIDE ,  Motoharu MORIKAWA ,  Shoji HOSOKAWA

IPC: C09K11/77 ,  C09K11/08

Abstract: Provided is a method of producing a β-sialon fluorescent material having a high light emission intensity and an excellent light emission luminance. The method includes preparing a calcined product having a composition of β-sialon containing an activating element; grinding the calcined product to obtain a ground product; and heat-treating the ground product to obtain a heat-treated product. A specific surface area of the ground product is 0.2 m2/g or more.