公开(公告)号：EP1353341A4

公开(公告)日：2007-10-31

申请号：EP02716314

申请日：2002-01-17

申请人： TOYOTA CHUO KENKYUSHO KK ,  TOYOTA MOTOR CO LTD

发明人： KONDO MIKIO ,  TAJIMA SHIN ,  HATTORI TAKESHI ,  AWANO YOJI ,  OKAJIMA HIROSHI

IPC分类号： H01F1/24 ,  B22F1/00 ,  H01F1/147 ,  H01F3/08 ,  H01F41/02

CPC分类号： B22F1/0062 ,  B22F1/0059 ,  B22F2998/00 ,  H01F1/14783 ,  H01F1/24 ,  H01F3/08 ,  H01F41/0246 ,  Y10T29/4902 ,  Y10T29/49071 ,  Y10T29/49073

摘要： A dust core produced by compacting an iron based magnetic powder coated with an insulating coating, characterized in that saturation magnetization M ≥ 1.9T in a field of 1.6 MA / m, specific resistance ς1.5 ν Φ m, flux density B2k ≥ 1.1T in a field of 2 kA/m, and flux density B10k≥1.6T in a field of 10 kA/m. According to the invention, an iron based magnetic powder can be compacted industrially under a significantly high molding pressure and a high performance dust core having high density and excellent specific resistance and permeability can be obtained.

公开(公告)号：EP1887585A4

公开(公告)日：2010-09-22

申请号：EP06746757

申请日：2006-05-23

申请人： TOYOTA MOTOR CO LTD ,  FINE SINTER KK

发明人： HATTORI TAKESHI ,  TAJIMA SHIN ,  SUGIYAMA MASAKI ,  KISHIMOTO HIDEFUMI ,  YAMAGUCHI TOSHIYA ,  KIKKOU TADAYOSHI

IPC分类号： H01F1/26 ,  C22C38/00 ,  C22C38/02 ,  H01F1/147 ,  H01F3/08 ,  H01F41/02

CPC分类号： H01F3/08 ,  C22C38/02 ,  H01F1/14766 ,  H01F1/15375 ,  H01F1/26 ,  H01F41/0246 ,  H01L41/20

公开(公告)号：EP2221836A4

公开(公告)日：2011-03-30

申请号：EP08845521

申请日：2008-10-30

申请人： TOYOTA MOTOR CO LTD

发明人： TAJIMA SHIN ,  TANI MASAAKI ,  OKAMOTO DAISUKE ,  HOSHINA EISUKE ,  KISHIMOTO HIDEFUMI ,  ICHIGOZAKI DAISUKE

IPC分类号： H01F1/24 ,  B22F1/00 ,  B22F1/02 ,  B22F3/00 ,  C21D6/00 ,  H01F1/26 ,  H01F41/02

CPC分类号： H01F1/24 ,  B22F1/0062 ,  B22F2003/026 ,  B22F2003/248 ,  B22F2998/10 ,  C21D8/1216 ,  C21D8/1244 ,  C22C1/002 ,  C22C33/02 ,  H01F1/14 ,  H01F1/26 ,  H01F41/0246 ,  Y10T428/12014 ,  Y10T428/12181 ,  B22F9/082 ,  B22F3/02 ,  B22F3/24