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公开(公告)号：US10519368B2
公开(公告)日：2019-12-31
申请号：US15175627
申请日：2016-06-07
发明人： Ryosuke Hiramatsu , Jun Tamura , Kunio Ishida , Keiko Albessard , Masahiro Kato
摘要： A red-light emitting phosphor is provided, having a basic composition represented by Ka(Si1-x,Mnx)Fb and also having a particular Raman spectrum, wherein the intensity ratio I1/I0, which is a ratio of (I1) the peak in a Raman shift of 600±10 cm−1 assigned to Mn—F bonds in the crystal to that (I0) in a Raman shift of 650±10 cm−1 assigned to Si—F bonds in the crystal, is 0.09 to 0.22. This phosphor is produced by bringing a silicon source in contact with an aqueous reaction solution containing potassium permanganate and hydrogen fluoride, wherein a molar ratio of hydrogen fluoride to potassium permanganate is 87 to 127.
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公开(公告)号：US09954146B2
公开(公告)日：2018-04-24
申请号：US14850168
申请日：2015-09-10
CPC分类号： H01L33/502 , C09K11/617 , H01L33/504 , H01L2224/16145 , H01L2224/48091 , H01L2224/73265 , H01L2924/181 , H01L2924/00012 , H01L2924/00014
摘要： The present invention provides a red-light emitting phosphor having high luminous efficacy and also a manufacturing method thereof. The phosphor is a red-light emitting phosphor mainly comprising potassium fluorosilicate and having a basic surface composition represented by the formula (A): KaSiFb. The disclosed phosphor is characterized by being activated by manganese and also characterized in that the amount of manganese on the surface is not more than 0.2 mol % based on the total amount of all the elements on the surface. This phosphor can be manufactured by washing with a weak acid a product obtained by placing a silicon source to react in contact with a reaction solution containing potassium permanganate.
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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：US10020427B2
公开(公告)日：2018-07-10
申请号：US14849103
申请日：2015-09-09
CPC分类号： H01L33/504 , C09K11/617 , H01L24/73 , H01L33/502 , H01L2224/16145 , H01L2224/32245 , H01L2224/32257 , H01L2224/48091 , H01L2224/48247 , H01L2224/48465 , H01L2224/49107 , H01L2224/73265 , H01L2924/181 , H01L2924/00014 , H01L2924/00
摘要： The present invention provides a red-light emitting phosphor that exhibits high luminous efficacy and emits light when excited by light having an emission peak in the blue region; and a method for manufacturing said phosphor. The phosphor represented by general formula (A): a(Si1-x-y,Tix,Mny)Fb and also characterized in that the half-band width of a diffraction pattern attributed to the (400) plane is not less than 0.2° determined by X-ray powder diffractometry. This phosphor can be manufactured by preparing a reaction solution consisting of an aqueous solution containing potassium permanganate and hydrogen fluoride, immersing a silicon source in said reaction solution, and reacting them for 20 to 80 minutes.
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公开(公告)号：US11097374B2
公开(公告)日：2021-08-24
申请号：US16324108
申请日：2017-08-04
发明人： Hidetoshi Fujii , Yoshiaki Morisada , Kai Funaki , Isao Ikeda , Yutaka Abe , Masahiro Kato
IPC分类号： B23K20/12 , C04B35/584 , C04B35/587 , C04B35/626 , C04B35/63 , C04B35/645 , B23K103/04
摘要： The friction stir welding tool member according to the present invention is made of a silicon nitride sintered body, wherein the silicon nitride sintered body contains 15% by mass or less of additive components except silicon nitride in such a manner that the additive components include at least one element selected from lanthanoid elements and at least one element selected from Mg, Ti, Hf, and Mo. In addition, it is preferable that the additive components further include at least one element selected from Al, Si, and C. According to the above-described configuration, a friction stir welding tool member having an excellent durability can be provided.
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公开(公告)号：US11813693B2
公开(公告)日：2023-11-14
申请号：US17230358
申请日：2021-04-14
发明人： Hidetoshi Fujii , Yoshiaki Morisada , Kai Funaki , Masahiro Kato , Takayuki Fukasawa , Yutaka Abe
CPC分类号： B23K20/1255
摘要： A friction stir welding tool member according to the present embodiment has a shoulder portion and a probe portion concentrically projecting from an upper surface of the shoulder portion. The shoulder portion includes a curved surface processed portion that is curved to have a curved shape on an outer peripheral edge of the shoulder portion. A space occupancy occupied by the two-dimensional space in which neither the shoulder portion nor the probe portion exists is in a range of 30% to 70%, the space occupancy being determined based on a projection drawing of a side surface region surrounded from a tip of the probe portion to the curved surface processed portion of the shoulder portion.
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公开(公告)号：US20210229210A1
公开(公告)日：2021-07-29
申请号：US17230358
申请日：2021-04-14
发明人： Hidetoshi Fujll , Yoshiaki Morisada , Kai Funakl , Masahiro Kato , Takayuki Fukasawa , Yutaka Abe
IPC分类号： B23K20/12
摘要： A friction stir welding tool member according to the present embodiment has a shoulder portion and a probe portion concentrically projecting from an upper surface of the shoulder portion. The shoulder portion includes a curved surface processed portion that is curved to have a curved shape on an outer peripheral edge of the shoulder portion. A space occupancy occupied by the two-dimensional space in which neither the shoulder portion nor the probe portion exists is in a range of 30% to 70%, the space occupancy being determined based on a projection drawing of a side surface region surrounded from a tip of the probe portion to the curved surface processed portion of the shoulder portion.
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公开(公告)号：US11130194B2
公开(公告)日：2021-09-28
申请号：US16324110
申请日：2017-08-04
发明人： Hidetoshi Fujii , Yoshiaki Morisada , Kai Funaki , Isao Ikeda , Yutaka Abe , Masahiro Kato
IPC分类号： B23K20/00 , B23K20/12 , C04B35/584 , C04B37/02
摘要： The friction stir welding tool member according to the present invention is made of a ceramic member in which a shoulder portion and a probe portion are integrally formed, wherein a root portion of the probe portion and an end portion of the shoulder portion have a curved surface shape; and the friction stir welding tool member has a ratio (R1/D) of 0.02 or more and 0.20 or less when a curvature radius of the end portion of the shoulder portion is defined as R1 (mm) and an outer diameter of the shoulder portion is defined as D (mm). In addition, the ceramic member is preferably made of a silicon nitride sintered body having a Vickers hardness of 1400 HV1 or more. According to the above-described configuration, a friction stir welding tool member having excellent durability can be provided.
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公开(公告)号：US11658602B2
公开(公告)日：2023-05-23
申请号：US17183750
申请日：2021-02-24
发明人： Masahiro Kato
IPC分类号： H02P8/36 , H02P29/024
CPC分类号： H02P29/027
摘要： A motor drive device of an embodiment includes a first drive circuit, a second drive circuit, a first detection circuit, a second detection circuit, a third detection circuit, a fourth detection circuit, and an output circuit. The first drive circuit drives a first phase of a motor. The second drive circuit drives a second phase of the motor. The first detection circuit detects a first anomaly of the first phase. The second detection circuit detects the first anomaly of the second phase. The third detection circuit detects a second anomaly of the first phase. The fourth detection circuit detects the second anomaly of the second phase. The output circuit outputs an occurred anomaly as a flag signal based on results of detection by the first to fourth detection circuits.
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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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