公开(公告)号：US20170178772A1

公开(公告)日：2017-06-22

申请号：US15380079

申请日：2016-12-15

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Noritsugu SAKUMA ,  Akira KATO ,  Masao YANO ,  Shunji SUZUKI ,  Kurima KOBAYASHI

IPC: H01F1/053 ,  C22C38/10 ,  C22C38/00 ,  C22C38/14 ,  C22C38/12

CPC classification number: H01F1/053 ,  C22C38/005 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  H01F1/0557

Abstract: A rare earth magnet having a main phase and a sub-phase, wherein the main phase has a ThMn12-type crystal structure; the sub-phase contains at least any one of an Sm5Fe17-based phase, an SmCo5-based phase, an Sm2O3-based phase, and an Sm7Cu3-based phase; assuming that the volume of the rare earth magnet is 100%, the volume fraction of the sub-phase is from 2.3 to 9.5% and the volume fraction of an α-Fe phase is 9.0% or less; and the density of the rare earth magnet is 7.0 g/cm3 or more.

公开(公告)号：US20170084370A1

公开(公告)日：2017-03-23

申请号：US15233362

申请日：2016-08-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Noritsugu SAKUMA ,  Masao YANO ,  Akira KATO ,  Akira MANABE ,  Shunji SUZUKI ,  Kurima KOBAYASHI

IPC: H01F1/057 ,  H01F1/059

CPC classification number: H01F1/0557 ,  C22C38/005 ,  C22C38/10 ,  C22C38/14

Abstract: A magnetic compound represented by the formula (R1(1-x)R2x)a(Fe(1-y)Coy)bTcMd wherein R1 is one or more elements selected from the group consisting of Sm, Pm, Er, Tm and Yb, R2 is one or more elements selected from the group consisting of Zr, La, Ce, Pr, Nd, Eu, Gd, Tb, Dy, Ho and Lu, T is one or more elements selected from the group consisting of Ti, V, Mo, Si and W, M is one or more elements selected from the group consisting of unavoidable impurity elements, Al, Cr, Cu, Ga, Ag and Au, 0≦x≦0.7, 0≦y≦0.7, 4≦a≦20, b=100-a-c-d, 0

公开(公告)号：US20160071635A1

公开(公告)日：2016-03-10

申请号：US14844478

申请日：2015-09-03

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Noritsugu SAKUMA ,  Akira KATO ,  Kota WASHIO ,  Hidefumi KISHIMOTO ,  Masao YANO ,  Akira MANABE ,  Masaaki ITO ,  Shunji SUZUKI ,  Kurima KOBAYASHI

IPC: H01F1/03 ,  C22C30/02

CPC classification number: C22C30/02 ,  C22C1/02 ,  C22C30/00 ,  C22C38/00 ,  H01F1/0593

Abstract: Provided is a magnetic compound represented by the formula (R(1-x)Zrx)a(Fe(1-y)Coy)bTcMdAe (wherein R represents one or more rare earth elements, T represents one or more elements selected from the group consisting of Ti, V, Mo, and W, M represents one or more elements selected from the group consisting of unavoidable impurity elements, Al, Cr, Cu, Ga, Ag, and Au, A represents one or more elements selected from the group consisting of N, C, H, and P, 0≦x≦0.5, 0≦y≦0.6, 4≦a≦20, b=100−a−c−d, 0

Abstract translation: 提供由式（R（1-x）Zr x）a（Fe（1-y）Coy）bTcMdAe表示的磁性化合物（其中R表示一种或多种稀土元素，T表示一种或多种选自 由Ti，V，Mo和W组成，M表示选自不可避免的杂质元素Al，Cr，Cu，Ga，Ag和Au中的一种或多种元素，A表示选自以下的一种或多种元素： 由N，C，H和P组成，0＆nlE; x＆nlE; 0.5,0和nlE; y＆nlE; 0.6,4和nlE; a＆nlE; 20b = 100-a-c-d，0