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21. 发明授权

US06621399B2 Powder core and high-frequency reactor using the same 失效
标题翻译：粉芯和高频反应器使用相同
公开(公告)号：US06621399B2
公开(公告)日：2003-09-16
申请号：US10052702
申请日：2002-01-17
申请人： Teruhiko Fujiwara , Masayoshi Ishii , Yoshitaka Saito
发明人： Teruhiko Fujiwara , Masayoshi Ishii , Yoshitaka Saito
IPC分类号： H01F1706
CPC分类号： H01F41/0246 , H01F1/1475 , H01F1/14766 , H01F1/24 , H01F1/26 , H01F1/33 , H01F3/08 , H01F3/14 , H01F17/04 , H01F37/00
摘要： A powder core is obtained by compaction-forming magnetic powder. The magnetic powder is an alloy comprising 1-10 wt % Si, 0.1-1.0 wt % O, and balance Fe. An insulator comprising SiO2 and MgO as main components is interposed between powder particles having a particle size of 150 &mgr;m or less.
摘要翻译：通过压实形成磁粉获得粉末芯。磁性粉末是包含1-10重量％的Si，0.1-1.0重量％的O和余量的Fe的合金。将包含SiO 2和MgO作为主要成分的绝缘体介于具有150μm或更小的粒度的粉末颗粒之间。

22. 发明授权

US06621398B2 Magnetic core comprising a bond magnet including magnetic powder whose particle's surface is coated with oxidation-resistant metal 失效
公开(公告)号：US06621398B2
公开(公告)日：2003-09-16
申请号：US09996047
申请日：2001-11-28
申请人： Teruhiko Fujiwara , Masayoshi Ishii , Haruki Hoshi , Keita Isogai , Hatsuo Matsumoto , Toru Ito , Tamiko Ambo
发明人： Teruhiko Fujiwara , Masayoshi Ishii , Haruki Hoshi , Keita Isogai , Hatsuo Matsumoto , Toru Ito , Tamiko Ambo
IPC分类号： H01F118
CPC分类号： H01F29/146 , H01F3/10 , H01F3/14 , H01F17/04 , H01F2003/103
摘要： Disposed in a magnetic gap of a magnetic core, a magnetically biasing permanent magnet is a bond magnet comprising rare-earth magnetic powder and a binder resin. The rare-earth magnetic powder has an intrinsic coercive force of 5 kOe or more, a Curie temperature of 300° C. or more, and an average particle size of 2.0-50 &mgr;m. The rare-earth magnetic power has a surface coated with a metallic layer containing an oxidation-resistant metal. In order to enable a surface-mount to reflow, the rare-earth magnetic powder may have the intrinsic coercive force of 10 kOe or more, the Curie temperature of 500° C. and the average particle size of 2.5-50 &mgr;m. In addition, to prevent specific resistance from degrading, the metallic layer desirably may be coated with a glass layer consisting of low-melting glass having a softening point less than a melting point of the oxidation-resistant metal.

23. 发明申请

US20050116804A1 Magnetically biasing bond magnet for improving DC superposition characteristics of magnetic coil 有权
标题翻译：用于改善电磁线圈直流叠加特性的磁偏置磁铁
公开(公告)号：US20050116804A1
公开(公告)日：2005-06-02
申请号：US11031230
申请日：2005-01-06
申请人： Teruhiko Fujiwara , Masayoshi Ishii , Haruki Hoshi , Keita Isogai , Hatsuo Matsumoto , Toru Ito , Tamiko Ambo
发明人： Teruhiko Fujiwara , Masayoshi Ishii , Haruki Hoshi , Keita Isogai , Hatsuo Matsumoto , Toru Ito , Tamiko Ambo
IPC分类号： H01F1/055 , H01F3/10 , H01F3/14 , H01F17/04 , H01F29/14 , H01F1/09
CPC分类号： H01F1/0558 , H01F1/0552 , H01F3/10 , H01F3/14 , H01F17/04 , H01F29/146 , H01F2003/103
摘要： In order to provide an inductance part having excellent DC superposition characteristic and core-loss, a magnetically biasing magnet, which is disposed in a magnetic gap of a magnetic core, is a bond magnet comprising magnetic powder and plastic resin with the content of the resin being 20% or more on the base of volumetric ratio and which has a specific resistance of 0.1 Ω·cm or more. The magnetic powder used is rare-earth magnetic powder having an intrinsic coercive force of 5 kOe or more, Curie point of 300° C. or more, and an average particle size of 2.0-50 μm. A magnetically biasing magnet used in an inductance part that is treated by the reflow soldering method has a resin content of 30% or more and the magnetic powder used therein is Sm—Co magnetic powder having an intrinsic coercive force of 10 kOe or more, Curie point of 500° C. or more, and an average particle size of 2.5-50 μm. A thin magnet having a thickness of 500 μm or less can be realized for a small-sized inductance part.
摘要翻译：为了提供具有优异的直流叠加特性和磁芯损耗的电感部分，设置在磁芯的磁隙中的磁偏置磁体是包含磁性粉末和树脂含量的塑料树脂的粘结磁体基于体积比为20％以上，电阻率为0.1Ω·cm以上。使用的磁性粉末是具有5kOe以上的固有矫顽力的稀土磁性粉末，居里点为300℃以上，平均粒径为2.0〜50μm。用于通过回流焊接方法处理的电感部分中的磁偏置磁体具有30％以上的树脂含量，其中使用的磁性粉末是具有10kOe以上的固有矫顽力的Sm-Co磁性粉末，居里 500℃以上，平均粒径为2.5〜50μm。对于小型电感部件，可以实现厚度为500μm以下的薄磁体。

24. 发明授权

US06778056B2 Inductance component having a permanent magnet in the vicinity of a magnetic gap 失效
标题翻译：具有在磁隙附近的永磁体的电感分量
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。

25. 发明授权

US06753751B2 Magnetic core including magnet for magnetic bias and inductor component using the same 有权
标题翻译：磁芯包括用于磁偏置的磁体和使用其的电感器部件
公开(公告)号：US06753751B2
公开(公告)日：2004-06-22
申请号：US09997066
申请日：2001-11-29
申请人： Teruhiko Fujiwara , Masayoshi Ishii , Haruki Hoshi , Keita Isogai , Toru Ito , Tamiko Ambo
发明人： Teruhiko Fujiwara , Masayoshi Ishii , Haruki Hoshi , Keita Isogai , Toru Ito , Tamiko Ambo
IPC分类号： H01F2100
CPC分类号： H01F3/10 , H01F3/14 , H01F17/04 , H01F29/146 , H01F2003/103
摘要： An inductor component according to the present invention includes a magnetic core including at least one magnetic gap having a gap length of about 50 to 10,000 &mgr;m in a magnetic path, a magnet for magnetic bias arranged in the neighborhood of the magnetic gap in order to supply magnetic bias from both sides of the magnetic gap, and a coil having at least one turn applied to the magnetic core. The aforementioned magnet for magnetic bias is a bonded magnet containing a resin and a magnet powder dispersed in the resin and having a resistivity of 1 &OHgr;·cm or more. The magnet powder includes a rare-earth magnet powder having an intrinsic coercive force of 5 KOe or more, a Curie point of 300° C. or more, the maximum particle diameter of 150 &mgr;m or less, and an average particle diameter of 2.0 to 50 &mgr;m and coated with inorganic glass, and the rare-earth magnet powder is selected from the group consisting of a Sm—Co magnet powder, Nd—Fe—B magnet powder, and Sm—Fe—N magnet powder.
摘要翻译：根据本发明的电感器部件包括磁芯，该磁芯包括在磁路中具有大约50至10,000μm的间隙长度的至少一个磁隙，用于磁偏置的磁体布置在磁隙附近以供应从磁隙的两侧的磁偏压，以及施加至磁芯的至少一圈的线圈。上述用于磁偏置的磁体是包含分散在树脂中并且具有1Ω·cm或更高电阻率的树脂和磁铁粉末的粘结磁体。磁铁粉末包括固有矫顽力为5KOe以上，居里点为300℃以上，最大粒径为150μm以下，平均粒径为2.0μm以上的稀土类磁体粉末 50毫米，涂有无机玻璃，稀土磁体粉末选自Sm-Co磁铁粉末，Nd-Fe-B磁铁粉末和Sm-Fe-N磁铁粉末。

26. 发明授权

US06734771B2 Inductor component having a permanent magnet in the vicinity of magnetic gap 失效
标题翻译：具有在磁隙附近的永磁体的电感器部件
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。

27. 发明授权

US06639499B2 Inductance component in which a permanent magnet for applying a magnetic bias is arranged outside an excitation coil 失效
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.

28. 发明授权

US06407482B2 Micro-relay and method for manufacturing the same 有权
标题翻译：微型继电器及其制造方法
公开(公告)号：US06407482B2
公开(公告)日：2002-06-18
申请号：US09254030
申请日：1999-02-26
申请人： Minoru Sakata , Takuya Nakajima , Tomonori Seki , Teruhiko Fujiwara
发明人： Minoru Sakata , Takuya Nakajima , Tomonori Seki , Teruhiko Fujiwara
IPC分类号： H01L4108
CPC分类号： H01H1/0036 , B81B7/0077 , B81B2201/016 , B81B2207/095 , B81C2203/0118 , H01H1/20 , H01H9/52 , H01H57/00 , H01H59/0009 , H01H61/02 , H01H67/22 , H01H2001/0042 , H01H2001/0084 , H01H2057/006 , H01H2061/006
摘要： A thin plate-shaped substrate 21 comprised of a monocrystal is provided with a piezoelectric element 24, and both ends of a movable piece 20 whose one surface is provided with a movable contact 25 are fixed and supported to a base 11. Then, by curving the movable piece 20 via the piezoelectric element 24, the movable contact 25 is brought in and out of contact with a pair of fixed contacts 38 and 39 that face the movable contact. With this arrangement, a subminiature micro-relay having a mechanical contact mechanism that has a small resistance in turning on the contact and the desired vibration resistance, frequency characteristic and insulating property can be obtained.
摘要翻译：由单晶构成的薄板状基板21设置有压电元件24，并且其一个表面设置有可动触点25的可动件20的两端固定并支撑在基座11上。然后，通过弯曲经由压电元件24的可动片20与可动触点对置的一对固定触点38,39接触而脱离接触。通过这种布置，可以获得具有机械接触机构的小型微型继电器，其具有接通触点的小电阻和期望的振动阻抗，频率特性和绝缘性能。

29. 发明授权

US5572177A Current detection unit and relay terminal array 失效
标题翻译：电流检测单元和继电器端子排
公开(公告)号：US5572177A
公开(公告)日：1996-11-05
申请号：US208374
申请日：1994-03-10
申请人： Teruhiko Fujiwara
发明人： Teruhiko Fujiwara
IPC分类号： G01R15/18 , G01R15/20 , H01F38/28 , H01H47/00 , H01H50/02 , H01H50/04 , H01H50/14 , H02B1/052 , H01H67/02
CPC分类号： H02B1/042 , H01H47/002 , H02B1/052 , G01R15/207 , H01F2038/305 , H01H50/021 , H01H50/047 , H02B1/0523
摘要： A compact current detection unit which detects a failure in a relay terminal and provides a relay terminal array which has a failure detection function and is compact and easy to assemble. The current detection unit includes two symmetrical bobbins; a core located within compartments of bobbins and has an air gap in it; holes in the bobbins which correspond to air gap in the core; coil wound on the compartments; and a circuit board fastened to the side of one of the bobbins on which a Hall element is mounted. A Hall element is inserted through and fixed in position by the holes in the bobbins and the air gap in the core. If a current is flowing through the coil, the lines of magnetic force generated in the core are detected by the Hall element located in the air gap. If no current is flowing, no lines of force are detected.
摘要翻译：一种紧凑型电流检测单元，其检测中继端子的故障并提供具有故障检测功能并且紧凑且易于组装的中继端子阵列。电流检测单元包括两个对称的线轴; 位于线轴的隔间内的核心，其间有气隙; 线轴中的孔对应于芯中的气隙; 线圈缠绕在隔间上; 以及固定在其上安装有霍尔元件的一个线轴的一侧的电路板。霍尔元件通过筒管中的孔和芯中的气隙插入并固定在适当的位置。如果电流流过线圈，则通过位于气隙中的霍尔元件来检测芯中产生的磁力线。如果没有电流流动，则不会检测到力线。

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