公开(公告)号：US20170213625A1

公开(公告)日：2017-07-27

申请号：US15414461

申请日：2017-01-24

Applicant: MINEBEA CO., LTD.

Inventor： Shiho OHYA ,  Yu OKAWARA ,  Susumu TERAOKA ,  Toshinori SUZUKI ,  Akihiro YAMANE

IPC: H01F1/053 ,  C22C38/00 ,  H01F1/08 ,  B22F1/00

CPC classification number: H01F1/053 ,  B22F1/0003 ,  B22F1/0059 ,  B22F1/0074 ,  B22F2003/023 ,  B22F2301/355 ,  C22C1/05 ,  C22C38/002 ,  C22C38/005 ,  H01F1/0578 ,  H01F1/08

Abstract: A rare earth bonded magnet comprises a rare earth-iron-based magnetic powder and a thermosetting resin composition. The thermosetting resin composition is obtained by blending a dicyclopentadiene type epoxy resin as a base resin and dicyandiamide as a curing agent. The dicyclopentadiene type epoxy resin includes a predetermined structure wherein an average value of a repeating unit n is 1 to 3.