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1. 发明专利

JP2014236118A 軟磁性粉末、コア及びその製造方法有权
标题翻译：软磁粉，其核心及制造方法
公开(公告)号：JP2014236118A
公开(公告)日：2014-12-15
申请号：JP2013116921
申请日：2013-06-03
申请人：株式会社タムラ製作所 , Tamura Seisakusho Co Ltd
发明人： NINOMIYA YUKIKAZU , NAKATSU RYO , OSHIMA YASUO , AKAIWA KOTA
IPC分类号： H01F1/24 , B22F1/02 , B22F3/00 , H01F1/33 , H01F27/255 , H01F41/02
摘要：【課題】機械的強度が高く、軟磁気特性の優れた軟磁性粉末と、前記軟磁性粉末を使用したコア及びその製造方法を提供する。【解決手段】軟磁性粉末に、その0.25〜2.0wt%の縮合リン酸金属塩を混合し、軟磁性粉末の周囲に前記縮合リン酸金属塩の被覆を形成する。軟磁性粉末としては、その粉末硬度(10%変位するのに必要な圧力)が100MPa以上であることが好ましい。縮合リン酸金属塩として、第一リン酸アルミを加熟して脱水反応させたトリポリリン酸アルミニウムやメタリン酸アルミニウムを使用することができる。縮合リン酸金属塩に、硬化促進剤として、Al2O3、SiO2、MgO、Mg(OH)2、CaO、Ca(OH)2、石綿、タルク、フライアッシュの少なくとも1種類を添加することもできる。軟磁性合金粉末に縮合リン酸金属塩を混合した後、所定の形状に成型することで、コアを製造する。【選択図】図1
摘要翻译：要解决的问题：提供机械强度高，软磁性优异的软磁性粉末和使用这种软磁性粉末的核心及其制造方法。软磁性粉末包括：软磁性粉末; 以及通过将软磁性粉末与0.25-2.0重量％的缩合金属磷酸盐混合而形成的覆盖软磁性粉末的浓缩金属磷酸盐涂层。软磁性粉末优选具有100MPa以上的粉末硬度（10％位置所需的压力）。作为缩合金属磷酸盐，可以使用通过加热一价磷酸铝而引起的脱水反应产生的三聚磷酸铝或偏磷酸铝。作为硬化促进剂，可以向缩合金属磷酸盐中添加AlO，SiO，MgO，Mg（OH），CaO，Ca（OH），石棉，滑石和飞灰中的至少一种。通过将软磁性合金粉末与浓缩的金属磷酸盐混合，然后将混合物成形为预定形式来制造核心。

2. 发明专利

JP2014138134A Powder magnetic core and method for manufacturing the same 有权
标题翻译：粉末磁芯及其制造方法
公开(公告)号：JP2014138134A
公开(公告)日：2014-07-28
申请号：JP2013007024
申请日：2013-01-18
申请人： Tamura Seisakusho Co Ltd , 株式会社タムラ製作所
发明人： OSHIMA YASUO , TSUNAKAWA MASAAKI , AKAIWA KOTA , TAMURA YASUHARU
IPC分类号： H01F1/24 , H01F1/153 , H01F27/255 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a powder magnetic core which has improved moldability and strength, in addition to high density, DC superposition characteristics and low loss characteristics, and to provide a method for manufacturing the same.SOLUTION: In a powder magnetic core in which an adhesive resin is mixed into composite magnetic powder obtained by mixing first soft magnetic powder constituted by an amorphous substance and second soft magnetic powder constituted by an amorphous substance having an average grain diameter smaller than that of the first soft magnetic powder, the first soft magnetic powder has at least one main surface, the end on the main surface has a round shape, and a ratio between the first soft magnetic powder and the second soft magnetic powder is between 75:25 and 50:50. One example of alloy powder is Fe-based amorphous pulverized powder. During mixing, glass powder and a lubricating resin can be added.
摘要翻译：要解决的问题：提供除了高密度，DC叠加特性和低损耗特性之外还具有改进的成型性和强度的粉末磁芯，并提供其制造方法。解决方案：在粉末磁芯将粘合剂树脂混合成通过混合由非晶质构成的第一软磁粉末和由平均粒径小于第一软磁粉末的非晶质构成的第二软磁粉末而获得的复合磁粉，第一软磁性粉末具有至少一个主表面，主表面上的端部具有圆形，并且第一软磁粉末和第二软磁粉末之间的比率在75:25至50:50之间。合金粉末的一个例子是Fe基非晶态粉末粉末。混合时，可加入玻璃粉和润滑树脂。

3. 发明专利

JP2011054924A Dust core and method for manufacturing the same 有权
标题翻译：粉尘芯及其制造方法
公开(公告)号：JP2011054924A
公开(公告)日：2011-03-17
申请号：JP2009286971
申请日：2009-12-17
申请人： Tamura Seisakusho Co Ltd , 株式会社タムラ製作所
发明人： OSHIMA YASUO , SHIGETA SUSUMU
IPC分类号： H01F1/24 , B22F1/00 , B22F1/02 , B22F3/00 , B22F3/02 , B22F3/24 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a dust core having excellent mechanical strength, in which the magnetic properties can be prevented from degrading due to the crystallization of the surface of amorphous alloy powder, when it is subjected to annealing in an oxidizing atmosphere. SOLUTION: In a first mixing step, amorphous soft magnetic alloy powder having a grain size equal to or smaller than 150 μm, low-melting point glass having a softening point of 406°C, and zinc stearate are mixed using a V-type mixer. In a coating step, the mixture obtained by the first mixing step is coated with a mixture of a 2% boric acid aqueous solution added with 0.01-1.20 wt.% boric acid, and 2.0 wt.% of emulsion of acrylic acid copolymerization resin (EAA). In a second mixing step, the mixture obtained in the coating step is mixed with 0.2 wt.% of zinc stearate. In a molding step, the mixture mixed with lubricating resin is pressure molded. In an annealing step, the dust core is produced, by subjecting the molded body to annealing in air or in a nitrogen atmosphere. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种具有优异的机械强度的防尘芯，其中可以防止由于非晶合金粉末的表面的结晶而导致的磁性能降低，当在氧化气氛中进行退火。解决方案：在第一混合步骤中，将晶粒度等于或小于150μm的无定形软磁性合金粉末，软化点为406℃的低熔点玻璃和硬脂酸锌混合使用V 型混合器。在涂布步骤中，将通过第一混合步骤获得的混合物用添加有0.01-1.20重量％硼酸的2％硼酸水溶液和2.0重量％的丙烯酸共聚树脂（ EAA）。在第二混合步骤中，将涂布步骤中获得的混合物与0.2重量％的硬脂酸锌混合。在模塑步骤中，将与润滑树脂混合的混合物进行加压模塑。在退火工序中，通过使成型体在空气中或氮气氛中进行退火来制造防尘芯。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2009059848A Core material, core using the same, and choke coil using the core 有权
标题翻译：核心材料，使用它的核心，并使用核心选择线圈
公开(公告)号：JP2009059848A
公开(公告)日：2009-03-19
申请号：JP2007225198
申请日：2007-08-31
申请人： Tamura Seiko Kk , Tamura Seisakusho Co Ltd , タムラ精工株式会社 , 株式会社タムラ製作所
发明人： TAGAMI KAZUHIRO , OSHIMA YASUO , TOMITA MANABU , SHIGETA SUSUMU
IPC分类号： H01F1/26 , H01F1/14 , H01F27/255 , H01F37/00
摘要： PROBLEM TO BE SOLVED: To provide a core material downsizing and reducing wire turns of a coil compared with a carbonyl iron core and for preventing a drop in distortion of an digital amplifier output, and also to provide a choke coil using the material.
SOLUTION: The core material including an insulative coat with an organic metal coupling agent of 0.1-1.0 wt.% and an organic metal resin of 0.2-0.5 wt.% formed on a surface of a metallic magnetic powder containing iron of 98% or more and small quantities of silicon Si and boron B with an average grain diameter of ≥6 and ≤11 μm in a particle shape with an average aspect ratio of 1-3 is pressure-molded. Then it is baked to make the core. A wire is wound around the core to make the choke coil.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：与羰基铁芯相比，提供一种芯体尺寸减小和减小线圈的线圈匝数，并防止数字放大器输出的失真下降，并且还提供使用该材料的扼流线圈。解决方案：芯材包括在金属磁性粉末的表面上形成的含有0.1-1.0重量％的有机金属偶联剂和0.2-0.5重量％的有机金属树脂的绝缘涂层，所述金属磁性粉末含有98 将平均长径比为1-3的颗粒形状的平均粒径为≥6且≤11μm的硅和Si B的平均粒径比为1-3以下的少量以上的少量硅胶和硼B进行加压成型。然后烤制成核心。电线缠绕在芯上以制作扼流线圈。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2008131115A Antenna coil and communication apparatus 有权
标题翻译：天线线圈和通讯装置
公开(公告)号：JP2008131115A
公开(公告)日：2008-06-05
申请号：JP2006311059
申请日：2006-11-17
申请人： Yoshio Kano , Tamura Seisakusho Co Ltd , 株式会社タムラ製作所 , 快男鹿野
发明人： OSHIMA YASUO , SHIGETA SUSUMU , KANO YOSHIO
IPC分类号： H01Q7/06 , G06K19/00 , G06K19/07 , G06K19/077 , H01Q1/38 , H01Q1/52
摘要： PROBLEM TO BE SOLVED: To provide an antenna coil capable of increasing a communication distance by reducing an eddy current by cutting a slit in a metallic seal member of a three-layered structure of a coil part, a magnetic member, and the shield member, and a communication apparatus. SOLUTION: The antenna coil 1 is constituted by stacking a substrate 3 provided with a hollow core coil 2, the magnetic member 4, and the shield member 5 in parallel to one another. The shield member 5 is a metallic flat plate disposed to improve the communication distance. The shield member 5 has the linear slit 6 cut penetrating it along the thickness. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种天线线圈，其能够通过在线圈部件，磁性部件和磁性部件的三层结构的金属密封部件中切割狭缝来减小涡流来增加通信距离屏蔽构件和通信装置。解决方案：天线线圈1通过将设置有中空芯线圈2，磁性构件4和屏蔽构件5的基板3彼此平行地堆叠而构成。屏蔽构件5是设置为改善通信距离的金属平板。屏蔽构件5具有沿着厚度穿过其的线性狭缝6。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2014084469A Mold for the molding of dust core 有权
标题翻译：用于模具芯的模具
公开(公告)号：JP2014084469A
公开(公告)日：2014-05-12
申请号：JP2012231507
申请日：2012-10-19
申请人： Tamura Seisakusho Co Ltd , 株式会社タムラ製作所
发明人： OSHIMA YASUO , KONO TETSUYA , AKAIWA KOTA , TAMURA YASUHARU
IPC分类号： B22F3/035 , B22F3/00 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a mold for the molding of a dust core with a hollow part in which a part is opened such as a U-shaped mold or an E-shaped mold, in which friction between a core rod and the dust core after molding is reduced, the core rod is smoothly pulled out from the inside of the hollow part of the dust core, and further, the generation of flaws at the inside face of the hollow part is prevented.SOLUTION: The mold comprises: a die 1; an upper punch 3 and a lower punch 2 arranged at the inside thereof freely insertably-removably thereto; and a core rod 4. The core rod 4 is arranged freely insertably/removably along the axial direction of the die 1 at the inside of the upper and lower punches, is provided with a horizontal-cross sectional shape correspondingly to the shape of the horizontal cross-section in the hollow part of the dust core 70, and is slid and contacted to both the inside face of the hollow part 71 of the dust core 70 and the inside face of the die 1. A coating 42 is formed at the part of the core rod 4 confronted with the inside face of the hollow part in the dust core 70 and also at the part to which pressing force is applied toward the inside of the hollow part 71 after the release of binding force by the die 1 to the dust core 70.
摘要翻译：要解决的问题：提供一种用于模制具有中空部分的压模芯的模具，其中打开零件如U型模具或E形模具，其中芯棒和灰尘之间的摩擦成型后的芯体减小，芯棒从压粉芯的中空部分的内部平滑地拉出，并且防止了在中空部分的内表面产生缺陷。解决方案：模具包括：死1 布置在其内部的上冲头3和下冲头2可自由地可插入地移除; 芯杆4在上冲头和下冲头的内侧沿着模具1的轴向可自由地可插入/可移除地设置的芯棒4设置有与水平形状对应的水平横截面形状并且与防尘芯70的中空部71的内面和模具1的内面滑动接触。在该部分的一部分上形成有涂层42 芯棒4面对着防尘芯70中的中空部分的内表面，以及在模具1的结合力释放到中空部分71的内部之后施加按压力的部分防尘芯70。

7. 发明专利

JP2010251474A Dust core and method of manufacturing the same 有权
标题翻译：粉尘芯及其制造方法
公开(公告)号：JP2010251474A
公开(公告)日：2010-11-04
申请号：JP2009098282
申请日：2009-04-14
申请人： Tamura Seisakusho Co Ltd , 株式会社タムラ製作所
发明人： OSHIMA YASUO , SHIGETA SUSUMU , MESHIRO YUJIRO
IPC分类号： H01F1/26 , B22F1/00 , B22F1/02 , B22F3/00 , B22F3/02 , B22F3/24 , H01F1/20 , H01F1/33
摘要： PROBLEM TO BE SOLVED: To provide a dust core having superior magnetic characteristics even in high frequency and high magnetic flux density. SOLUTION: In a first mixing step, in order to form an insulation layer uniformly covering the surface of a soft magnetic powder, the soft magnetic powder is mixed with an inorganic insulation powder and an inorganic insulation coating is formed on the surface thereof. In a heat treatment step, heat treatment is executed for a mixture passed through the first mixing step in a reduction atmosphere at ≥1,000°C and not higher than the temperature at which the soft magnetic powder starts sintering. In a covering step, the mixture passed through the mixing step is mixed with a silane coupling agent, and the resulted product is heat-dried. Then, a silicone resin is mixed and the resulted product is heat-dried. In a second mixing step, the mixture coated with an adhesive insulative resin is mixed with a lubricant. In a molding step, the mixture passed through the second mixing step is pressure-molded to form a molded compact. In an annealing step, annealing processing is applied to the molded compact in a non-oxidation atmosphere at ≥600°C and not higher than the temperature at which the insulation film covering the soft magnetic power is broken, thereby manufacturing the dust core. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使在高频和高磁通密度下，也提供具有优异磁特性的防尘芯。解决方案：在第一混合步骤中，为了形成均匀地覆盖软磁性粉末表面的绝缘层，将软磁性粉末与无机绝缘粉末混合，并在其表面上形成无机绝缘涂层。在热处理工序中，对于通过第1混合工序的混合物，在软化磁粉末开始烧结的温度为1〜1000℃以下的还原气氛中进行热处理。在覆盖步骤中，将通过混合步骤的混合物与硅烷偶联剂混合，并将所得产物加热干燥。然后，将硅树脂混合，将所得产物加热干燥。在第二混合步骤中，用粘合剂绝缘树脂涂覆的混合物与润滑剂混合。在成型步骤中，通过第二混合步骤的混合物被压模以形成模制成型体。在退火工序中，在600℃以上的非氧化气氛下对成型体进行退火处理，并且不超过覆盖软磁力的绝缘膜破裂的温度，从而制造防尘芯。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2010245459A Dust core, and method of manufacturing the same 有权
标题翻译： DUST CORE及其制造方法
公开(公告)号：JP2010245459A
公开(公告)日：2010-10-28
申请号：JP2009095369
申请日：2009-04-09
申请人： Tamura Seisakusho Co Ltd , 株式会社タムラ製作所
发明人： OSHIMA YASUO , SHIGETA SUSUMU , MESHIRO YUJIRO , UEMATSU HIROSHI
IPC分类号： H01F1/20 , B22F1/00 , B22F1/02 , B22F3/00 , B22F3/24 , C22C38/00 , H01F1/33
摘要： PROBLEM TO BE SOLVED: To provide a dust core having excellent press-molded ring strength and magnetic characteristics even if low-pressure molding is performed at the room temperature. SOLUTION: In a first mixing step, soft magnetic powder consisting principally of iron and inorganic insulating powder are mixed for six hours using a mixing machine. The mixture obtained in the first mixing step is subjected to a heat treatment in a non-oxidizing atmosphere of 1,000°C to a temperature equal to or lower than the temperature at which the soft magnetic powder begins to be sintered. The mixture obtained in the mixing step and a 0.2 to 3.0 wt.% binding resin for the soft magnetic powder are mixed, and heated to be dried. In a second mixing step wherein a lubricating resin is mixed with the mixture after a coating step, the lubricating resin is mixed with the mixture coated with the binding resin. In a molding step, the soft magnetic powder coated with the binder is pressed to form a molding. In an annealing step, the molding is annealed in the non-oxidizing atmosphere. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使在室温下进行低压成型，也可以提供具有优异的压模环强度和磁特性的防尘芯。解决方案：在第一混合步骤中，主要由铁和无机绝缘粉末组成的软磁粉末使用混合机混合6小时。将在第一混合步骤中获得的混合物在1000℃的非氧化性气氛中进行到等于或低于软磁粉末开始烧结的温度的温度的热处理。在混合步骤中获得的混合物和0.2-3.0重量％的用于软磁粉末的粘合树脂混合，并加热干燥。在其中在涂布步骤之后将润滑树脂与混合物混合的第二混合步骤中，将润滑树脂与涂有粘合树脂的混合物混合。在成型步骤中，将粘合剂涂覆的软磁性粉末压制成型。在退火步骤中，在非氧化性气氛中对成型进行退火。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2009259974A High-strength powder magnetic core, method of manufacturing high-strength powder magnetic core, choke coil, and method of manufacturing the same 有权
标题翻译：高强度粉末磁芯，制造高强度粉末磁芯的方法，制造线圈及其制造方法
公开(公告)号：JP2009259974A
公开(公告)日：2009-11-05
申请号：JP2008106052
申请日：2008-04-15
申请人： Tamura Seisakusho Co Ltd , 株式会社タムラ製作所
发明人： OSHIMA YASUO , SHIGETA SUSUMU
IPC分类号： H01F1/24 , H01F1/147 , H01F27/255 , H01F37/00 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a cheap high-strength powder magnetic core which is excellent in soft magnetic property, which achieves high pressure ring strength, and which does not use glass powder and the like, to provide a method of manufacturing the high-strength powder magnetic core, and to provide a choke coil and a method of manufacturing the same. SOLUTION: Soft magnetic alloy powder having Fe-Si-Al alloy such as sendust as a principal component is covered with methyl phenyl silicone varnish and drying by heating at around 200 °C is performed. Then, metal salt of stearic acid is mixed as a lubricant in order to speed up the thermal decomposition rate of methyl group. In this embodiment, 0.3 mass% of zinc stearate is mixed as this lubricant. A compact is formed by performing pressure forming at a pressure of 1,700 MPa at a room temperature. Methyl phenyl silicone varnish dried by heating acts as a binder when forming. High-strength powder magnetic core is formed by allowing the compact to be subjected to a heat treatment at around 600 to 800°C in an oxygen atmosphere (atmosphere). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种廉价的高磁性粉末磁芯，其具有优异的软磁性能，其实现了高压环强度，并且不使用玻璃粉末等来提供制造方法高强度粉末磁芯，并提供扼流线圈及其制造方法。解决方案：用甲基苯基硅氧烷清漆覆盖以铁硅铝矿为主要成分的Fe-Si-Al合金作为主要成分的软磁性合金粉末，并进行约200℃的加热干燥。然后，将硬脂酸金属盐作为润滑剂混合，以加速甲基的热分解速率。在该实施方式中，混合0.3质量％的硬脂酸锌作为该润滑剂。通过在室温下在1700MPa的压力下进行压力成形来形成压块。通过加热干燥的甲基苯基硅氧烷清漆在成型时用作粘合剂。通过使该成形体在氧气氛（气氛）中在约600〜800℃下进行热处理，形成高强度的粉末磁芯。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2007031168A METHOD OF MANUFACTURING Mn-Zn FERRITE 有权
标题翻译：制备锰锌铁矿的方法
公开(公告)号：JP2007031168A
公开(公告)日：2007-02-08
申请号：JP2005212315
申请日：2005-07-22
申请人： Tamura Seisakusho Co Ltd , 株式会社タムラ製作所
发明人： SHIGETA SUSUMU , OSHIMA YASUO , NAKAZATO YOSUKE
IPC分类号： C04B35/26 , C04B35/38 , H01F1/34
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing Mn-Zn ferrite capable of obtaining a product satisfying the performance required for a laminated chip product by carrying out a calcining treatment at a low temperature and a regular sintering process at a temperature below the melting point of Ag. SOLUTION: Powder prepared by mixing Mn-Zn raw material mixed powder or Mn-Zn raw materials, calcining and pulverized is used as a sintering material. The sintering material is formed into a prescribed shape to make a formed body and the formed body is sintered at a low temperature of ≤750°C in a carbon dioxide gas or hydrogen-containing carbon dioxide gas atmosphere before the regular sintering at a higher temperature. In the regular sintering treatment, the formed body is sintered at 800 to 2 ). COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造Mn-Zn铁氧体的方法，其能够通过在低温下进行煅烧处理和在温度下进行规则烧结来获得满足层压芯片产品所需性能的产品低于Ag的熔点。
解决方案：将烧结和粉碎的Mn-Zn原料混合粉末或Mn-Zn原料混合制备的粉末用作烧结材料。将烧结材料形成为规定形状以形成成形体，并且在较高温度下进行常规烧结之前，在二氧化碳气体或含氢二氧化碳气体气氛中，在≤750℃的低温下烧结成型体。在常规烧结处理中，成形体在二氧化碳气体或含氢二氧化碳气氛中在800〜<910℃下烧结。烧结材料含有0.025-0.075重量％的偏硼酸锂（LiBO 2 ）。版权所有（C）2007，JPO＆INPIT

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