公开(公告)号：US10522275B2

公开(公告)日：2019-12-31

申请号：US15600157

申请日：2017-05-19

申请人： KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO

发明人： Hiroaki Wakayama ,  Hirotaka Yonekura ,  Yasuaki Kawai

IPC分类号： H01F1/03 ,  H01F1/057 ,  H01F41/02 ,  H01F1/06 ,  H01F1/055 ,  H01F1/08

摘要： A method for producing a nanoheterostructured permanent magnet includes a first step of preparing a raw material solution by dissolving, in a solvent, (1) a block copolymer comprising polymer block components that are immiscible but linked to each other, (2) a first inorganic precursor which is one of a hard magnetic material precursor and a soft magnetic material precursor, and (3) a second inorganic precursor which is the other of the hard magnetic material precursor and the soft magnetic material precursor, and a second step including a phase-separation treatment for forming a nanophase-separated, a conversion treatment for converting the hard magnetic material precursor and the soft magnetic material precursor to a hard magnetic material and a soft magnetic material, respectively, and a removal treatment for removing the block copolymer from the nanophase-separated structure.

公开(公告)号：US09914666B2

公开(公告)日：2018-03-13

申请号：US14848650

申请日：2015-09-09

申请人： KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO

发明人： Hiroaki Wakayama ,  Hirotaka Yonekura ,  Hiromitsu Tanaka

IPC分类号： C04B35/71 ,  C04B35/628 ,  B22F9/22 ,  B22F1/00 ,  B82Y30/00 ,  C22B9/22 ,  B82Y25/00 ,  C01B21/06 ,  C01B21/076 ,  C01G49/00 ,  C01G49/06 ,  C01G51/00 ,  H01F1/00 ,  G02B1/04 ,  C01G23/00 ,  C04B35/46 ,  C04B35/56 ,  C04B35/58 ,  C04B35/638 ,  B22F9/26 ,  H01L35/14 ,  H01L41/18

CPC分类号： C04B35/71 ,  B22F1/0044 ,  B22F9/26 ,  B82Y25/00 ,  B82Y30/00 ,  C01B21/0635 ,  C01B21/0763 ,  C01G23/00 ,  C01G49/00 ,  C01G49/06 ,  C01G51/00 ,  C01P2002/01 ,  C01P2002/50 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/30 ,  C01P2004/64 ,  C04B35/46 ,  C04B35/56 ,  C04B35/58014 ,  C04B35/5805 ,  C04B35/638 ,  C04B2235/3232 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3293 ,  C04B2235/3852 ,  C04B2235/44 ,  C04B2235/444 ,  C04B2235/5454 ,  C04B2235/663 ,  C04B2235/664 ,  C04B2235/80 ,  C22B9/22 ,  G02B1/04 ,  H01F1/0063 ,  H01F1/0081 ,  H01L35/14 ,  H01L41/183 ,  C08L39/04 ,  C08L25/08

摘要： A nanoheterostructure includes a first inorganic component and a second inorganic component one of which is a matrix, and the other of which is three-dimensionally and periodically arranged in the matrix, and has a three-dimensional periodic structure whose average value of one unit length of a repeated structure is 1 nm to 100 nm.