公开(公告)号：US06791446B2

公开(公告)日：2004-09-14

申请号：US10157697

申请日：2002-05-29

申请人： Mizuho Sato ,  Kazuyuki Okita ,  Toru Ito ,  Gen Daigaku

发明人： Mizuho Sato ,  Kazuyuki Okita ,  Toru Ito ,  Gen Daigaku

IPC分类号： H01F2100

CPC分类号： H01F17/043 ,  H01F3/14 ,  H01F21/08 ,  H01F27/34 ,  H01F29/14 ,  H01F37/00

摘要： An inductance component includes a magnetic core (11, 12) forming a magnetic circuit having a magnetic gap, an exciting coil (14) wound around the magnetic core, and a permanent magnet (13) disposed in the magnetic gap. The permanent magnet is greater in sectional area than the magnetic core.

摘要翻译： 电感分量包括形成具有磁隙的磁路的磁芯（11,12），缠绕在磁芯上的励磁线圈（14）和设置在磁隙中的永磁体（13）。 永磁体的截面面积大于磁芯。

公开(公告)号：US06778056B2

公开(公告)日：2004-08-17

申请号：US09920051

申请日：2001-08-01

申请人： Toru Ito ,  Hatsuo Matsumoto ,  Teruhiko Fujiwara ,  Kazuyuki Okita ,  Toshiya Sato

发明人： Toru Ito ,  Hatsuo Matsumoto ,  Teruhiko Fujiwara ,  Kazuyuki Okita ,  Toshiya Sato

IPC分类号： H01F2100

CPC分类号： H01F3/14 ,  H01F17/04

摘要： An inductance component comprises a magnetic core having at least one magnetic gap, means for generating a direct-current biased magnetic field produced by mounting a permanent magnet in the vicinity of a generally closed magnetic circuit which passes through the magnetic gap in the magnetic core or on the outside thereof, and a coil wound around the magnetic core, wherein the permanent magnet is mounted near the magnetic gap at one or more legs of the magnetic core which sandwich the magnetic gap.

摘要翻译： 电感分量包括具有至少一个磁隙的磁芯，用于产生通过将永磁体安装在通过磁芯中的磁隙的通常闭合的磁路附近产生的直流偏置磁场的装置，或 以及缠绕在所述磁芯上的线圈，其中，所述永久磁铁安装在所述磁芯的一个或多个腿部附近的所述磁隙附近，所述磁芯夹着所述磁隙。

公开(公告)号：US06734771B2

公开(公告)日：2004-05-11

申请号：US10016038

申请日：2001-11-16

申请人： Kazuyuki Okita ,  Toru Ito ,  Toshiya Sato ,  Teruhiko Fujiwara

发明人： Kazuyuki Okita ,  Toru Ito ,  Toshiya Sato ,  Teruhiko Fujiwara

IPC分类号： H01F708

CPC分类号： H01F29/146

摘要： An inductor component is provided which includes a magnetic core having at least one gap, an excitation coil disposed on the magnetic core so as to form a magnetic path on the magnetic core, at least one permanent magnet disposed near the at least one gap, and at least one first soft magnetic material piece disposed between the at least one permanent magnet and the magnetic core, wherein the first soft magnetic material piece is formed of a soft magnetic material which has a smaller permeability and less eddy current loss than the magnetic core.

摘要翻译： 提供了一种电感器部件，其包括具有至少一个间隙的磁芯，设置在磁芯上的激励线圈，以在磁芯上形成磁路，至少一个设置在该至少一个间隙附近的永磁体，以及 至少一个设置在所述至少一个永磁体和所述磁芯之间的第一软磁材料片，其中所述第一软磁材料片由软磁材料形成，所述软磁材料具有比磁芯更小的磁导率和更小的涡流损耗。

公开(公告)号：US06639499B2

公开(公告)日：2003-10-28

申请号：US09943729

申请日：2001-08-31

申请人： Kazuyuki Okita ,  Teruhiko Fujiwara

发明人： Kazuyuki Okita ,  Teruhiko Fujiwara

IPC分类号： H01F2100

CPC分类号： H01F29/146

摘要： In an inductance component in which a cylindrical excitation coil (26) is fitted around a predetermined portion of a magnetic core (21) forming a magnetic path, a permanent magnet (25) is inserted into the magnetic path to apply a magnetic bias to the magnetic core. The permanent magnet is arranged outside the cylindrical excitation coil. It is preferable that the permanent magnet is spaced from the predetermined portion of the magnetic core along the magnetic path at least by a distance which corresponds to ½ of an average of inner diameters of the cylindrical excitation coil.