公开(公告)号：US10365042B2

公开(公告)日：2019-07-30

申请号：US15431862

申请日：2017-02-14

Applicant: MITSUI HIGH-TEC, INC.

Inventor： Takeaki Kozono ,  Yusuke Hasuo

IPC: F27D3/12 ,  F27D5/00

Abstract: A tray is provided for conveying a workpiece placed on the tray inside a heat treatment furnace. The tray includes plural kinds of positional displacement regulating parts for respectively regulating horizontal positional displacements of plural kinds of workpieces with different sizes, wherein the plural kinds of positional displacement regulating parts are arranged concentrically in a plane shape.

公开(公告)号：US11705794B2

公开(公告)日：2023-07-18

申请号：US17558644

申请日：2021-12-22

Applicant: Mitsui High-tec, Inc.

Inventor： Iwao Myojin ,  Yusuke Hasuo ,  Yusuke Eto ,  Hayato Nakayama

IPC: H02K1/04 ,  H02K15/10 ,  H02K3/52 ,  H02K15/00 ,  H02K15/02

CPC classification number: H02K15/10 ,  H02K1/04 ,  H02K3/521 ,  H02K15/0043 ,  H02K15/024

Abstract: A stator core comprises a stack and a resin portion. The stack comprises an annular yoke portion, a plurality of tooth portions, and a plurality of slots. The resin portion covers an inner wall surface of a slot of the plurality of slots. The resin portion protrudes outward relative to an end surface of the stack in a height direction of the stack. The resin portion is formed on at least a part of an end surface of the tooth portion so as to extend from the inner wall surface of the slot around the end surface of the tooth portion. A resin end portion of the resin portion is disposed on the end surface of the stack and a corner of the resin end portion is formed as an inclined surface including a planar surface or curved surface.

公开(公告)号：US11605990B2

公开(公告)日：2023-03-14

申请号：US16483234

申请日：2018-01-29

Applicant: MITSUI HIGH-TEC, INC.

Inventor： Hirokazu Arakawa ,  Yusuke Hasuo

IPC: H02K1/18 ,  H02K15/02

Abstract: An annular core piece in which an annular core piece can be received inside a contour of an outer circumstance of the annular core piece and the number of recesses formed on the outer circumstance is small is provided. In an annular core piece including a plurality of recesses opened in an outer circumferential part, the recess includes a narrowed part and a raised part, and a transverse width of the narrowed part is made narrower than a transverse width of a different region present on a side of a bottom of the recess further beyond the narrowed part, and the raised part is formed such that a part of the bottom of the recess is raised and projected toward an opening end of the recess.

公开(公告)号：US11196324B2

公开(公告)日：2021-12-07

申请号：US16447889

申请日：2019-06-20

Applicant: Mitsui High-tec, Inc.

Inventor： Satoshi Matsubayashi ,  Yukio Matsunaga ,  Yusuke Hasuo ,  Yusuke Eto ,  Hayato Nakayama

IPC: H02K15/02 ,  B21D39/03 ,  H02K1/16 ,  B21D28/02 ,  H01F41/02

Abstract: A method of manufacturing a stacked core includes: forming a stack by stacking a plurality of core members, each of the plurality of core members including one or more blanked members blanked by a die from a metal plate along a predetermined shape; removing one core member of the plurality of core members from the stack; supplying adhesive to the one core member removed from the stack; and stacking the one core member next to an adjacent core member of the plurality of core members so that the adhesive is placed between the one core member and the adjacent core member.

公开(公告)号：US10128726B2

公开(公告)日：2018-11-13

申请号：US14757783

申请日：2015-12-23

Applicant: Mitsui High-tec, Inc. ,  HONDA MOTOR CO., LTD.

Inventor： Yukio Matsunaga ,  Hisatomo Ishimatsu ,  Yusuke Hasuo ,  Masahiro Izumi ,  Manabu Yazaki

IPC: H02K15/02 ,  H02K15/10 ,  H02K15/03 ,  H02K1/27 ,  H02K15/12

Abstract: A method for manufacturing a laminate used for manufacturing a rotor is provided. The method includes: (a) stamping out a plurality of workpieces from a metal sheet wherein each of the workpieces has a temporarily-interlocking portion; and (b) obtaining a laminate including the workpieces integrated together by the temporarily-interlocking portion, wherein each of the workpieces further has a shaft hole, a magnet insertion hole, and a weight-reducing hole formed between the shaft hole and the magnet insertion hole, and the temporarily-interlocking portion is provided to the weight-reducing hole.