-
公开(公告)号：US20170178773A1
公开(公告)日：2017-06-22
申请号：US15118116
申请日：2014-02-12
Applicant: NITTO DENKO CORPORATION
Inventor： Izumi OZEKI , Katsuya KUME , Toshiaki OKUNO , Takashi OZAKI , Tomohiro OMURE , Keisuke TAIHAKU , Takashi YAMAMOTO
CPC classification number: H01F1/0536 , B22F3/1021 , B22F3/22 , B22F5/006 , B22F9/04 , B22F2009/041 , B22F2998/10 , B22F2999/00 , C22C1/0441 , C22C33/0278 , C22C38/002 , C22C38/005 , C22C2202/02 , H01F1/0577 , H01F41/0273 , B22F2009/043 , B22F2009/044 , B22F2201/01 , B22F2201/02 , B22F2201/11 , B22F2201/12 , B22F2202/05 , B22F9/023 , B22F1/0074 , B22F3/105
Abstract: Provided are a rare-earth permanent magnet whose magnet density after sintering is very high and a method for manufacturing a rare-earth permanent magnet. Thus, a magnet raw material is milled into magnet powder, and then, a compound 12 is formed by mixing the magnet powder thus milled with a binder. Next, the compound 12 thus formed is subjected to a hot-melt molding onto a supporting substrate 13 so as to form a green sheet 14 molded to a sheet-like shape. Thereafter, while the green sheet 14 thus molded is softened by heating, magnetic field orientation is carried out by applying a magnetic field to the green sheet 14 thus heated; and further, the green sheet 14 having been subjected to the magnetic field orientation is calcined by a vacuum sintering, which is further followed by a pressure sintering to produce a permanent magnet 1.
-
公开(公告)号：US20140057374A1
公开(公告)日：2014-02-27
申请号：US14068590
申请日：2013-10-31
Applicant: NITTO DENKO CORPORATION
Inventor： Takashi KONDO , Koji AKAZAWA , Takashi OZAKI
IPC: H01L33/56
CPC classification number: H01L33/56 , B29C43/18 , H01L33/50 , H01L33/505 , H01L33/507 , H01L2224/48227 , H01L2933/005 , H05B33/04 , Y10T428/31663
Abstract: The present invention relates to an optical-semiconductor device, which is prepared by: arranging a sheet for optical-semiconductor element encapsulation including an encapsulating resin layer capable of embedding an optical-semiconductor element and a wavelength conversion layer containing light wavelength-converting particles and being laminated directly or indirectly on the encapsulating resin layer, on an optical-semiconductor element-mounting substrate so that the encapsulating resin layer faces the optical-semiconductor element-mounting substrate; followed by compression-molding, in which the wavelength conversion layer is present on an upper part of a molded body in which the optical-semiconductor element is embedded therein, but is not present on a side surface of the molded body.
Abstract translation: 光半导体装置技术领域本发明涉及一种光半导体装置，其通过以下方式制备：将包含能够嵌入光半导体元件的封装树脂层和含有光波长转换粒子的波长转换层的光半导体元件封装用片， 在光学半导体元件安装基板上直接或间接地层叠在封装树脂层上，使得封装树脂层面向光半导体元件安装基板; 接着进行压缩成型，其中波长转换层存在于其中嵌入光半导体元件的成型体的上部，但不存在于成型体的侧表面上。
-
Patent Agency Ranking
3.发明申请公开(公告)号：US20170170695A1
公开(公告)日：2017-06-15
申请号：US15118144
申请日：2014-02-12
Applicant: NITTO DENKO CORPORATION
Inventor： Takashi YAMAMOTO , Katsuya KUME , Toshiaki OKUNO , Izumi OZEKI , Tomohiro OMURE , Takashi OZAKI , Keisuke TAIHAKU
IPC: H02K1/27 , H01F1/08 , H01F41/02 , B22F3/14 , B22D7/00 , B22F9/04 , B22F3/16 , B22F5/00 , H02K15/03 , C22C38/00
CPC classification number: H02K1/2706 , B22D7/00 , B22F3/14 , B22F3/16 , B22F5/006 , B22F5/106 , B22F9/04 , B22F2009/044 , B22F2301/355 , B22F2998/10 , B22F2999/00 , C22C38/002 , C22C38/005 , C22C2202/02 , H01F1/086 , H01F41/0246 , H01F41/0273 , H02K1/2733 , H02K15/03 , B22F3/22 , B22F3/02 , B22F3/10 , B22F2202/05
Abstract: Provided are: a ring magnet for an SPM motor with which high output power, high efficiency, and low torque ripple of the SPM motor can be realized; a method for manufacturing a ring magnet for an SPM motor; an SPM motor using a ring magnet for an SPM motor; and a method for manufacturing an SPM motor. Raw material magnet is milled to magnet powder, and the magnet powder is molded to a shape of a sheet thereby forming a green sheet. Then, a magnetic field is applied to the green sheet to perform magnetic field orientation. Further, with fixing plural green sheets after the magnetic field orientation by lamination under deformed state thereof, the plural laminated green sheets are cut to a fan-like shape, which is then followed by connecting with each other to form a ring shape and further followed by sintering to produce a permanent magnet.
-
公开(公告)号：US20170169922A1
公开(公告)日：2017-06-15
申请号：US15118117
申请日：2014-02-12
Applicant: NITTO DENKO CORPORATION
Inventor： Takashi OZAKI , Katsuya KUME , Toshiaki OKUNO , Izumi OZEKI , Tomohiro OMURE , Keisuke TAIHAKU , Takashi YAMAMOTO
CPC classification number: H01F1/0536 , B22F3/1021 , B22F3/22 , B22F5/006 , B22F2998/10 , B22F2999/00 , C22C33/0278 , C22C38/002 , C22C38/005 , C22C2202/02 , H01F1/0577 , H01F7/02 , H01F41/0253 , H01F41/0273 , B22F2009/043 , B22F2009/044 , B22F2202/05 , B22F2201/01 , B22F2201/10 , B22F9/04 , B22F2201/02 , B22F2201/11 , B22F2201/12 , B22F9/023 , B22F1/0074 , B22F3/105
Abstract: Provided are a rare earth permanent magnet whose permanent magnetic properties are improved by making density of the magnet very high and a method for manufacturing a rare earth permanent magnet. Thus, magnet raw material is milled into magnet powder, and then a compound is formed by mixing the magnet powder thus milled with a binder. Next, the compound thus formed is subjected to hot-melt molding onto a supporting substrate so as to form a green sheet molded to a sheet-like shape. Thereafter, while the green sheet thus molded is softened by heating, magnetic field orientation is carried out by applying a magnetic field to the green sheet thus heated; and further, the green sheet having been subjected to the magnetic field orientation is calcined in non-oxidizing atmosphere, and then, sintering thereof is carried out at a sintering temperature to produce a permanent magnet having density of 95% or more.
-
公开(公告)号：US20160196903A1
公开(公告)日：2016-07-07
申请号：US15071406
申请日：2016-03-16
Applicant: NITTO DENKO CORPORATION
Inventor： Keisuke TAIHAKU , Katsuya KUME , Toshiaki OKUNO , Izumi OZEKI , Tomohiro OMURE , Takashi OZAKI
CPC classification number: H01F1/0536 , B22F1/0062 , B22F1/02 , B22F3/02 , B22F3/1021 , B22F3/16 , B22F5/006 , B22F2001/0066 , B22F2003/248 , B22F2201/01 , B22F2301/45 , B22F2302/45 , B22F2998/10 , B22F2999/00 , C22C38/002 , C22C38/005 , C22C2202/02 , H01F1/06 , H01F1/42 , H01F41/0266 , B22F9/04 , B22F3/10
Abstract: There are provided a rare-earth permanent magnet and a manufacturing method thereof capable of preventing deterioration of magnet properties. In the method, magnet material is milled into magnet powder. Next, a mixture is prepared by mixing the magnet powder and a binder made of long-chain hydrocarbon and/or of a polymer or a copolymer consisting of monomers having no oxygen atoms. Next, the mixture is formed into a sheet-like shape so as to obtain a green sheet. After that, the green sheet is held for a predetermined length of time at binder decomposition temperature in a non-oxidizing atmosphere so as to remove the binder by causing depolymerization reaction or the like to the binder, which turns into monomer. The green sheet from which the binder has been removed is sintered by raising temperature up to sintering temperature. Thereby a permanent magnet 1 is obtained.
-
公开(公告)号：US20200161032A1
公开(公告)日：2020-05-21
申请号：US16611618
申请日：2018-05-08
Applicant: NITTO DENKO CORPORATION
Inventor： Kenichi FUJIKAWA , Takashi YAMAMOTO , Shoichiro SAITO , Takashi OZAKI , Katsuya KUME
Abstract: The rare-earth sintered magnet has a configuration in which a large number of magnet material particles including a rare-earth substance and each having an axis of easy magnetization have been integrally sintered. The rare-earth sintered magnet is provided with a first surface and a second surface opposing each other in the thickness direction. In a plane in parallel with a width direction and the thickness direction, the magnet material particles are magnetized such that, in a region extending from each of both end portions in the width direction toward the center portion in the width direction, the orientation direction of the easy magnetization axis is gradually changed. A maximum surface magnetic flux density in the first surface and a maximum surface magnetic flux density in the second surface satisfy the relationship (D1/D2)≥4.
-
7.发明申请公开(公告)号：US20170178806A1
公开(公告)日：2017-06-22
申请号：US15118140
申请日：2014-02-12
Applicant: NITTO DENKO CORPORATION
Inventor： Keisuke TAIHAKU , Katsuya KUME , Toshiaki OKUNO , Izumi OZEKI , Tomohiro OMURE , Takashi OZAKI , Takashi YAMAMOTO
CPC classification number: H01F41/0266 , B22F3/1017 , B22F3/1021 , B22F3/16 , B22F3/22 , B22F5/006 , B22F5/106 , B22F7/062 , B22F9/04 , B22F2009/041 , B22F2202/05 , B22F2301/355 , B22F2302/45 , B22F2303/40 , B22F2998/10 , B22F2999/00 , C22C33/0278 , C22C38/002 , C22C38/005 , C22C2202/02 , H01F1/0577 , H01F7/02 , H01F41/0273 , H02K1/27 , H02K15/03 , B22F2009/043 , B22F2009/044 , B22F2201/02 , B22F2201/11 , B22F2201/12 , B22F9/023 , B22F1/0074 , B22F3/105 , B22F2201/01
Abstract: Provided are: a permanent magnet wherein the magnetic field orientation process can be made simple and a degree of orientation thereof can be improved; a method for manufacturing a permanent magnet, an SPM motor using a permanent magnet, and a method for manufacturing an SPM motor. Raw material magnet is milled to magnet powder, and the magnet powder is mixed with a binder to form a compound. Then, the compound is molded by hot-melt molding to a green sheet in a shape of a sheet onto a supporting substrate. Thereafter, a magnetic field is applied to the green sheet thus molded to carry out magnetic field orientation. Further, with fixing plural green sheets after the magnetic field orientation by lamination under a deformed state thereof, the plural green sheets thus laminated are cut for shaping to a prescribed shape, which is followed by sintering to produce a permanent magnet.
-
-
-
-
-
-
Search Results
7
records
(took 0.014 seconds)
