公开(公告)号：US20230415227A1

公开(公告)日：2023-12-28

申请号：US18253676

申请日：2021-09-30

Applicant: NICHIA CORPORATION

Inventor： Masahiro ABE ,  Satoshi YAMANAKA ,  Shuichi TADA ,  Kenta IWAI

IPC: B22F1/16 ,  H01F1/059 ,  H01F1/055 ,  B22F1/145 ,  B22F1/142 ,  B22F1/103 ,  B22F9/20 ,  B22F3/20 ,  B22F3/22

CPC classification number: B22F1/16 ,  B22F2999/00 ,  H01F1/0551 ,  B22F1/145 ,  B22F1/142 ,  B22F1/103 ,  B22F9/20 ,  B22F3/20 ,  B22F3/225 ,  B22F2301/355 ,  B22F2302/45 ,  B22F2998/10 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2202/05 ,  H01F1/059

Abstract: A method for producing a phosphate-coated SmFeN-based anisotropic magnetic powder, the method includes: a phosphate treatment of adding an inorganic acid to a slurry containing an SmFeN-based anisotropic magnetic powder, water, and a phosphate compound to adjust a pH of the slurry to a range from 1 to 4.5 to form an SmFeN-based anisotropic magnetic powder having a surface on which a phosphate coating is formed; and oxidizing by heat treating the SmFeN-based anisotropic magnetic powder having the surface on which the phosphate coating is formed, in an oxygen-containing atmosphere at a temperature in a range of 200° C. to 330° C., to form the phosphate-coated SmFeN-based anisotropic magnetic powder.

公开(公告)号：US20230374257A1

公开(公告)日：2023-11-23

申请号：US18318924

申请日：2023-05-17

Applicant: NICHIA CORPORATION

Inventor： Shuichi TADA ,  Takashi ASADA ,  Masahiro ABE

IPC: C08K3/08 ,  C08L63/00 ,  H01F1/059 ,  H01F1/06 ,  C08G59/50

CPC classification number: C08K3/08 ,  C08L63/00 ,  H01F1/059 ,  H01F1/06 ,  C08G59/5033 ,  C08K2201/01 ,  C08K2201/005

Abstract: A method, including: preparing at least one magnetic powder having an average particle size that is at least 1 μm but not more than 10 μm, at least one thermosetting resin, and at least one curing agent, wherein at least one of the thermosetting resin and the curing agent includes at least one monomer having a melting point that is higher than 70° C. but not higher than 140° C., and wherein an amount of the monomer having the melting point that is higher than 70° C. but not higher than 140° C. is at least 33% by volume but not more than 100% by volume of a combined amount of the thermosetting resin and the curing agent; and obtaining a magnetic powder-containing resin composition by kneading the magnetic powder, the thermosetting resin, and the curing agent at a temperature of higher than 70° C. but not higher than 140° C. and then lowering the temperature.

公开(公告)号：US20220103036A1

公开(公告)日：2022-03-31

申请号：US17449023

申请日：2021-09-27

Applicant: NICHIA CORPORATION

Inventor： Kohei IHARA ,  Masahiro ABE ,  Rie YOSHIDA ,  Satoshi YAMANAKA

IPC: H02K1/27 ,  H02K21/24

Abstract: A yoke for a rotor of an axial gap motor, having a plurality of recesses at a surface to be bonded to a bonded magnet, at least one of the recesses penetrating the yoke radially to an inner periphery or an outer periphery, wherein a maximum width of an inside part of at least one of the recesses is larger than that of an open part of the recess.

公开(公告)号：US20210287832A1

公开(公告)日：2021-09-16

申请号：US17303571

申请日：2021-06-02

Applicant: NICHIA CORPORATION

Inventor： Rie YOSHIDA ,  Masahiro ABE ,  Michiya KUME ,  Kohei IHARA ,  Shuichi TADA

IPC: H01F1/053 ,  C08L77/02 ,  H01F7/02 ,  H01F1/059 ,  H01F41/02 ,  B29C45/00 ,  H01F1/08 ,  H01F1/113

Abstract: The present invention relates to a composite component including a metal component having a substantially cylindrical shape or a substantially annular shape, and a ring-shaped bonded magnet disposed on the outer periphery of the metal component, the ring-shaped bonded magnet containing a thermoplastic resin, magnetic particles, and rubber particles.