公开(公告)号：US20230017833A1

公开(公告)日：2023-01-19

申请号：US17934518

申请日：2022-09-22

申请人： Murata Manufacturing Co., Ltd.

发明人： Luan JIAN ,  Masashi INOGUCHI ,  Kenji SAKAGUCHI

IPC分类号： H01F1/20 ,  H01F27/255 ,  C22C45/02 ,  B22F1/16 ,  B22F1/14

摘要： A coated soft magnetic alloy particle includes a soft magnetic alloy particle containing an amorphous phase, and a first film containing at least one compound selected from the group consisting of an inorganic compound having a hexagonal, trigonal, or monoclinic crystal structure and a layered silicate mineral. The first film coats a surface of the soft magnetic alloy particle, and an outer peripheral contour of a section of the coated soft magnetic alloy particle has an average smoothness ζ_ave of 0.92 or more and 1.00 or less (i.e., from 0.92 or more and 1.00).

公开(公告)号：US20230035258A1

公开(公告)日：2023-02-02

申请号：US17935823

申请日：2022-09-27

申请人： Murata Manufacturing Co., Ltd.

发明人： Masashi INOGUCHI ,  Hiroshi NAGAKUBO ,  Kenji SAKAGUCHI

IPC分类号： H01F1/24 ,  H01F1/153

摘要： A soft magnetic metal powder includes a coated particle having a soft magnetic metal particle and a coating layer coating a surface of the soft magnetic metal particle. The coating layer contains at least one compound selected from the group consisting of molybdenum disulfide, molybdenum oxide, boron nitride, mica, talc, pyrophyllite, and kaolinite.

公开(公告)号：US20220194861A1

公开(公告)日：2022-06-23

申请号：US17690528

申请日：2022-03-09

申请人： National University Corporation Hokkaido University ,  Murata Manufacturing Co., Ltd.

发明人： Yuji MASUBUCHI ,  Akira HOSONO ,  Shinichi KIKKAWA ,  Masashi INOGUCHI

IPC分类号： C04B35/58 ,  C04B35/645 ,  C04B35/63 ,  B01J27/24 ,  B01J35/00 ,  B01J37/08 ,  G01N33/00 ,  H01G4/12

摘要： A sintered body containing polycrystalline grains of a metal oxynitride containing at least two metal elements, wherein Ba and at least one metal element of a crystal phase of the sintered body are contained in a triple point that is not a void between the polycrystalline grains. A method for producing the sintered body includes sintering a mixture of at least a metal oxynitride as a main component and a sintering aid containing cyanamide in an atmosphere containing nitrogen or a rare gas or in a reduced-pressure atmosphere of 10 Pa or less while applying a mechanical pressure with a retention time at a maximum heating temperature during the sintering set to 1 minute to 10 minutes.