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    • 11. 发明专利
    • 軟磁性粉末、コア及びその製造方法
    • 软磁粉,芯及其制造方法
    • JP2015032708A
    • 2015-02-16
    • JP2013161678
    • 2013-08-02
    • 株式会社タムラ製作所Tamura Seisakusho Co Ltd
    • OSHIMA YASUOAKAIWA KOTATSUNAKAWA MASAAKITAMURA YASUHARUNINOMIYA YUKIKAZU
    • H01F1/153B22F1/02B22F3/00H01F1/24H01F27/24H01F27/255H01F41/02
    • 【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、そのような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】第1の非晶質軟磁性粉末と、第1の非晶質軟磁性粉末より平均粒径が小さい第2の非晶質軟磁性粉末を混合して得られる複合磁性粉末に、その0.25〜2.0wt%の縮合リン酸金属化合物を混合し、非晶質軟磁性粉末の周囲に縮合リン酸金属化合物の被覆を形成する。縮合リン酸金属化合物として、第一リン酸アルミを加熱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。縮合リン酸金属化合物に、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。複合磁性粉末に縮合リン酸金属化合物を混合した後、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
    • 要解决的问题:提供:机械强度高,软磁性优异的软磁粉末; 使用这种软磁性粉末排列的芯; 及其制造方法。解决方案:制造芯的方法包括以下步骤:将0.25-2.0重量%的聚合金属磷酸盐化合物与通过将第一非晶软磁粉与第二非晶软磁 粉末的平均粒径小于第一非晶软磁粉末,由此用浓缩的金属磷酸盐化合物涂覆无定形软磁性粉末。 作为缩合金属磷酸盐化合物,可以使用三聚磷酸铝或偏磷酸铝,其是通过加热一磷酸铝而引起其脱水反应产生的。 作为硬化促进剂可以向缩合金属磷酸盐化合物添加AlO,SiO,MgO,Mg(OH),CaO,Ca(OH),石棉,滑石和飞灰中的至少一种材料。 芯的制造方法还包括以下步骤:将复合磁性粉末与聚合的金属磷酸盐化合物混合并将所得粉末成形为预定形式,从而制造芯。
    • 12. 发明专利
    • Powder magnetic core and manufacturing method thereof
    • 粉末磁芯及其制造方法
    • JP2014120723A
    • 2014-06-30
    • JP2012277057
    • 2012-12-19
    • Tamura Seisakusho Co Ltd株式会社タムラ製作所
    • OSHIMA YASUOAKAIWA KOTA
    • H01F41/02B22F3/00B22F3/02B22F3/24B22F3/26C22C33/02C22C45/02H01F1/153H01F1/24
    • PROBLEM TO BE SOLVED: To provide a powder magnetic core of low loss and high strength even under the environment of high temperature and high humidity.SOLUTION: A manufacturing method of a powder magnetic core is characterized in that amorphous soft magnetic alloy powder and low-melting glass are mixed, and press-molding processing is performed on the mixture thereof to produce a compact. First heat treatment is performed on the compact obtained by the press-molding processing, the compact on which the first heat treatment has been performed is caused to impregnate an impregnant containing an inorganic material, and second heat treatment is performed on the compact impregnating the impregnant containing the organic material at a temperature equal to or higher than 350°C and lower than a crystallization temperature of the amorphous soft magnetic alloy powder. When mixing the amorphous soft magnetic alloy powder and the low-melting glass, a lubricative resin can be added. Press-molding processing can be performed in the mixture of the amorphous soft magnetic alloy powder and the low-melting glass while adding a binding resin thereto. The impregnant containing the inorganic material, a silane coupling agent is available.
    • 要解决的问题:即使在高温高湿环境下也能提供低损耗和高强度的粉末磁芯。解决方案:一种粉末磁芯的制造方法,其特征在于,无定形软磁合金粉末, 熔融玻璃混合,并对其混合物进行压制成型加工,以制造成型体。 对通过加压成型加工得到的成形体进行一次热处理,对进行了第一次热处理的成形体浸渍含有​​无机材料的浸渍剂,对紧密浸渍浸渍剂进行第二次热处理 在等于或高于350℃并低于无定形软磁性合金粉末的结晶温度的温度下含有有机材料。 当混合无定形软磁合金粉末和低熔点玻璃时,可以加入润滑树脂。 可以在无定形软磁性合金粉末和低熔点玻璃的混合物中进行加压成型加工,同时向其中加入粘结树脂。 可以使用含有无机材料的浸渍剂,硅烷偶联剂。
    • 13. 发明专利
    • Dust core and method of manufacturing the same
    • 粉尘芯及其制造方法
    • JP2010219161A
    • 2010-09-30
    • JP2009061985
    • 2009-03-13
    • Tamura Seisakusho Co Ltd株式会社タムラ製作所
    • OSHIMA YASUOSHIGETA SUSUMUTAMURA YASUHARUTOMITA MANABU
    • H01F1/26B22F1/00B22F1/02B22F3/00B22F3/02B22F3/24C22C38/00H01F1/147H01F41/02
    • PROBLEM TO BE SOLVED: To provide a dust core exhibiting excellent radial crushing strength and magnetic characteristics regardless of low-pressure molding at a room temperature. SOLUTION: A soft magnetic alloy powder containing iron, silicon and aluminum as principal components is heated in a hydrogen atmosphere at a temperature higher than a temperature at which the soft magnetic alloy is made brittle and higher than a temperature at which sintering is started. A binding insulating resin is mixed into the heated soft magnetic alloy powder. The soft magnetic alloy is mixed with ethylene bis stearamide of 0.3 wt.% as a lubricous resin for 2 hours. A silane coupling agent of 1 mass% and a silicon resin of 0.8 wt.% are mixed into the soft magnetic alloy power mixed with the bonding insulating resin in this order and are heated and dried for 2 hours at 150°C. Ethylene bis stearamide of 0.4 wt.% is mixed into the mixture coated with the binding insulating resin as a lubricant resin. Then, the mixture is press-molded under a molding pressure of 1,600 MPa at a room temperature to form a molding. The molding is sintered for 6 hours at 700°C in the atmosphere. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种在室温下不管低压成型如何,具有优异的径向破碎强度和磁特性的防尘芯。 解决方案:以铁,硅和铝为主要成分的软磁性合金粉末在氢气氛中在比软磁性合金变脆的温度高的温度下加热,高于烧结时的温度 开始。 将粘合绝缘树脂混合到加热的软磁合金粉末中。 将软磁性合金与0.3重量%的亚乙基双硬脂酰胺作为润滑树脂混合2小时。 将1质量%的硅烷偶联剂和0.8重量%的硅树脂依次混合到与粘合绝缘树脂混合的软磁合金粉末中,并在150℃下加热干燥2小时。 将0.4重量%的乙烯双硬脂酰胺与作为润滑树脂的粘合绝缘树脂涂覆的混合物混合。 然后,将混合物在室温下,在1600MPa的模塑压力下进行压模,以形成模制品。 成型体在大气中在700℃下烧结6小时。 版权所有(C)2010,JPO&INPIT
    • 14. 发明专利
    • Dust core and method of manufacturing the same
    • 粉尘芯及其制造方法
    • JP2010219159A
    • 2010-09-30
    • JP2009061977
    • 2009-03-13
    • Tamura Seisakusho Co Ltd株式会社タムラ製作所
    • OSHIMA YASUOSHIGETA SUSUMUTAMURA YASUHARUTOMITA MANABU
    • H01F1/26B22F1/00B22F1/02B22F3/00B22F3/02B22F3/24C22C33/02C22C38/00H01F1/147H01F41/02
    • PROBLEM TO BE SOLVED: To provide a rust core high in density, low in loss and excellent in DC superposition characteristics. SOLUTION: In the first mixing process, a soft magnetic alloy powder containing iron, silicon and aluminum as principal components is mixed with a lubricant. In the coating process of coating a mixture subjected to the first mixing process with a binding insulating resin, a methyl-phenyl-based silicone adhesive is mixed into the mixture subjected to the first mixing process and is heated and dried for 2 hours at 150°C. In the second mixing step of mixing a lubricant into the mixture subjected to the coating process, a binding insulating resin is mixed into the first mixture coated with the lubricant. In the molding process, the soft magnetic alloy coated with the binder is press-molded under a molding pressure of 1,600 MPa in a nitrogen atmosphere to form a molding. At that time, the press-dried binding insulating resin acts as a binder in molding. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供高密度,低损耗和优异的直流叠加特性的铁芯。 解决方案:在第一次混合过程中,以铁,硅和铝为主要成分的软磁性合金粉末与润滑剂混合。 在用粘合绝缘树脂涂覆进行第一次混合的混合物的涂布过程中,将甲基 - 苯基类硅氧烷粘合剂混合到经过第一次混合过程的混合物中,并在150℃下加热干燥2小时 C。 在将润滑剂混合到经过涂覆处理的混合物的第二混合步骤中,将粘合绝缘树脂混合到涂有润滑剂的第一混合物中。 在成型工序中,在氮气气氛中,在1600MPa的成型压力下,将涂布有粘合剂的软磁性合金进行压制成型。 此时,压干装订绝缘树脂在成型时用作粘合剂。 版权所有(C)2010,JPO&INPIT
    • 15. 发明专利
    • Dust core and method of manufacturing the same
    • 粉尘芯及其制造方法
    • JP2010114222A
    • 2010-05-20
    • JP2008284772
    • 2008-11-05
    • Tamura Seisakusho Co Ltd株式会社タムラ製作所
    • OSHIMA YASUOSHIGETA SUSUMU
    • H01F1/20B22F1/00B22F1/02B22F3/00B22F3/02B22F3/24H01F27/255H01F41/02
    • PROBLEM TO BE SOLVED: To provide a dust core having excellent direct current (DC) characteristics and magnetic characteristics even if low-pressure molding is performed under the room temperature. SOLUTION: A first powder in the average grain size of 42 μm is prepared in 85 wt.% among the powder of an amorphous soft-magnetic alloy and a second powder in the average grain size of 4 to 6 μm is prepared in 15 wt.% as the remainder. Powder of a plurality of amorphous soft-magnetic alloys, low-melting point glass as much as 5 wt.% in the powder of the amorphous soft-magnetic alloy, and lubricating resin as much as 0 to 2 wt.% in the powder of the amorphous soft-magnetic alloy are mixed. A binding insulation resin is mixed to a mixture including amorphous soft-magnetic alloy powder. Thereafter, the mixture is dried and applied to a sieve with apertures of 300 μm for the purpose of coverage. A molding is formed by pressure molding of the mixture including the amorphous soft-magnetic alloy powder covered with the binding insulation resin with a molding pressure of 1,300 MPa under the room temperature. The annealing processing is conducted for 30 minutes under 480°C for the molded material. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:即使在室温下进行低压成型,也提供具有优异的直流(DC)特性和磁特性的防尘芯。 解决方案:在无定形软磁合金粉末中制备平均粒度为42μm的第一粉末为85重量%,并制备平均粒径为4至6μm的第二粉末 15重量%作为其余部分。 多种无定形软磁合金的粉末,无定形软磁性合金粉末中的低熔点玻璃多达5重量%,粉末中的润滑树脂多达0〜2重量% 混合无定形软磁合金。 将粘结绝缘树脂混合到包括非晶软磁合金粉末的混合物中。 此后,将混合物干燥并施加到孔径为300μm的筛子上以便覆盖。 通过在室温下以1300MPa的成型压力将包含结合绝缘树脂的无定形软磁性合金粉末的混合物加压成型而形成成型体。 对于成型材料,在480℃下进行退火处理30分钟。 版权所有(C)2010,JPO&INPIT
    • 16. 发明专利
    • Dust core and manufacturing method thereof
    • DUST CORE及其制造方法
    • JP2009302165A
    • 2009-12-24
    • JP2008152470
    • 2008-06-11
    • Tamura Seisakusho Co Ltd株式会社タムラ製作所
    • OSHIMA YASUOSHIGETA SUSUMU
    • H01F1/24B22F1/00B22F1/02B22F3/00B22F3/24H01F1/33H01F41/02
    • PROBLEM TO BE SOLVED: To provide a dust core having low loss by planarizing the surface of a soft magnetic powder, and performing insulation processing to improve an annealing temperature and to provide a manufacturing method thereof.
      SOLUTION: The dust core includes a soft magnetic powder principally containing iron produced by a water atomizing method, and an insulator for covering the surface of the soft magnetic powder. The soft magnetic powder is subjected to planarization treatment, and pre-molding heat treatment for heating the powder at ≥700°C. Insulation treatment for covering the insulator is executed before or after the pre-molding heat treatment. After the insulation treatment, molding treatment for pressurizing and molding the soft magnetic powder is executed. After the molding treatment, annealing treatment for heating the powder at ≥550°C is executed.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:通过使软磁性粉末的表面平坦化,并进行绝缘处理以提供退火温度并提供其制造方法,来提供具有低损耗的压粉芯。 解决方案:防尘芯包括主要包含由水雾化方法生产的铁的软磁粉末和用于覆盖软磁粉末表面的绝缘体。 对软磁性粉末进行平坦化处理,并且在≥700℃下加热粉末的预成型热处理。 在预成型热处理之前或之后执行用于覆盖绝缘体的绝缘处理。 在绝缘处理之后,执行用于加压和成型软磁性粉末的成型处理。 在模塑处理之后,执行在≥550℃下加热粉末的退火处理。 版权所有(C)2010,JPO&INPIT
    • 17. 发明专利
    • Variable inductance coil, and booster antenna and reader/writer equipped with the same
    • 可变电感线圈和升压天线及其设备读写器
    • JP2009152862A
    • 2009-07-09
    • JP2007328897
    • 2007-12-20
    • Tamura Seisakusho Co Ltd株式会社タムラ製作所
    • OSHIMA YASUOICHINOSE KANAMESHIGETA SUSUMU
    • H01Q7/00G06K17/00G06K19/07H01F21/00H01F21/06H01Q1/38H04B5/02
    • PROBLEM TO BE SOLVED: To provide a variable inductance coil, and a booster antenna and a reader/writer equipped with the same capable of suppressing leakage of data of a contactless communication medium, such as an IC card, and improving safety with a convenient method without labor. SOLUTION: The variable inductance coil is provided with a pair of electrodes, a sealed part provided between the electrodes, a first medium stored inside the sealed part, and a second medium different from the first medium in dielectric constant, where inductance changes as a rotation position changes. The booster antenna and the reader/writer equipped with the variable inductance coil can change a resonance frequency in accordance with the rotation position, so that they can control data communication between a contactless communication medium and the reader/writer and suppress leakage of data when an owner of the contactless medium does not intend. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种可变电感线圈,以及具有能够抑制诸如IC卡之类的非接触通信介质的数据泄漏的增强天线和具有读取器/写入器的读取器/写入器,并且通过 一个方便的方法没有劳动。 解决方案:可变电感线圈设置有一对电极,设置在电极之间的密封部分,存储在密封部分内部的第一介质和不同于介电常数的第一介质的第二介质,其中电感变化 随着旋转位置的变化。 增益天线和配备有可变电感线圈的读写器可以根据旋转位置改变谐振频率,从而它们可以控制非接触通信介质和读/写器之间的数据通信,并且当一个 非接触介质的所有者不打算。 版权所有(C)2009,JPO&INPIT
    • 18. 发明专利
    • Variable capacitance element, and booster antenna and reader/writer provided therewith
    • 可变电容元件及其提供的天线和读取器/写入器
    • JP2009151544A
    • 2009-07-09
    • JP2007328896
    • 2007-12-20
    • Tamura Seisakusho Co Ltd株式会社タムラ製作所
    • OSHIMA YASUOSHIGETA SUSUMU
    • G06K19/077G06K17/00G06K19/07H01G5/01H01G5/013H01G5/12H01Q7/00H01Q7/06H01Q9/14
    • PROBLEM TO BE SOLVED: To provide a variable capacitance element, and booster antenna and reader/writer provided therewith capable of restraining data leakage of the IC card and other contactless media and improving the security, in a fuss-free and by a convenient method. SOLUTION: The variable capacitance element comprises a pair of electrodes, a closed section provided between the electrodes, and a first medium contained in the closed section and a second medium with a permittivity which is different from that of the first medium, and changes its capacitance, according to its rotational position. The booster antenna and reader/writer provided with the variable capacitance element is capable of changing the resonance frequency, according to the rotational position, thereby data communication between a contactless communication medium and the reader/writer can be controlled and data leakage unintended by a holder of the contactless medium can be restrained. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供可变电容元件,以及提供的增强天线和读取器/写入器,其能够限制IC卡和其它非接触式介质的数据泄漏,并且以无限制的方式提高安全性 方便的方法。 解决方案:可变电容元件包括一对电极,设置在电极之间的封闭部分和包含在封闭部分中的第一介质和具有不同于第一介质的介电常数的第二介质,以及 根据其旋转位置改变其电容。 具有可变电容元件的增强天线和读写器能够根据旋转位置改变谐振频率,从而可以控制非接触通信介质和读/写器之间的数据通信,并且由持有者无意地发生数据泄漏 可以抑制非接触式介质。 版权所有(C)2009,JPO&INPIT
    • 19. 发明专利
    • Non-contact communication medium and reading/writing device
    • 非接触式通信介质和读取/写入设备
    • JP2009151543A
    • 2009-07-09
    • JP2007328895
    • 2007-12-20
    • Yoshio KanoTamura Seisakusho Co Ltd株式会社タムラ製作所快男 鹿野
    • ICHINOSE KANAMEOSHIMA YASUOKANO YOSHIO
    • G06K19/07G06K17/00G06K19/077H01Q1/38
    • PROBLEM TO BE SOLVED: To perform data communication between a non-contact communication medium such as an IC card and a reading/writing device, in a specific state. SOLUTION: A non-contact communication medium for performing data communication with a reading/writing device includes: a position detection part for detecting a first state in which the main surface is almost matched with a prescribed face and a second state other than a first state; a position detection part for detecting a rotating state in a state where the main surface is almost matched with a prescribed face; and a control part for controlling the operating/non-operating state of an IC card 10 according to the rotating position detected by the position detection part. When the rotating position of the non-contact communication medium detected by the position detection part is determined as one or more prescribed rotating positions, the control part controls the non-contact communication medium to respond to an electric signal from the reading/writing device. Thus, it is possible to suppress the leakage of data when it is not intended by the owner of the non-contact medium. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:在特定状态下执行诸如IC卡的非接触通信介质和读/写设备之间的数据通信。 解决方案:用于与读/写设备进行数据通信的非接触通信介质包括:位置检测部分,用于检测主表面几乎与规定面相匹配的第一状态和除了规定面以外的第二状态 第一个状态 位置检测部,用于在主表面几乎与规定面相匹配的状态下检测旋转状态; 以及用于根据由位置检测部检测到的旋转位置来控制IC卡10的操作/非操作状态的控制部。 当由位置检测部检测到的非接触通信介质的旋转位置被确定为一个或多个规定的旋转位置时,控制部分控制非接触通信介质以响应来自读/写装置的电信号。 因此,当非接触介质的所有者不想要的时候,可以抑制数据的泄漏。 版权所有(C)2009,JPO&INPIT
    • 20. 发明专利
    • Booster antenna coil
    • 升压天线
    • JP2009021970A
    • 2009-01-29
    • JP2007231149
    • 2007-09-06
    • Tamura Seisakusho Co Ltd株式会社タムラ製作所
    • OSHIMA YASUOSHIGETA SUSUMU
    • H01Q7/00G06K19/07G06K19/077H01Q5/10
    • PROBLEM TO BE SOLVED: To provide a booster antenna coil which is capable of sufficiently extending a communication distance and ensuring a stable communication distance and reduces the required space. SOLUTION: An RFID reader/writer 1 communicable with an RFID tag 3 in a predetermined carrier frequency comprises a booster antenna 2. A P coil 11 of the RFID reader/writer 1 and a Q coil 21 of the booster antenna 2 constitute a coupling resonance circuit in such a way as to generate bimodal characteristics. The carrier frequency comes to between two peaks of the bimodal characteristics. A coupling coefficient of the coupling resonance circuit is magnetic coupling of 0.015-0.1. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够充分延长通信距离并确保稳定的通信距离并减少所需空间的增强天线线圈。 解决方案:以预定载波频率与RFID标签3通信的RFID读取器/写入器1包括增强天线2. RFID读取器/写入器1的AP线圈11和增强天线2的Q线圈21构成 耦合谐振电路,以产生双峰特性。 载波频率达到双峰特征的两个峰值之间。 耦合谐振电路的耦合系数为0.015-0.1的磁耦合。 版权所有(C)2009,JPO&INPIT