专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2012180258A MnZn-BASED FERRITE POWDER, MnZn-BASED FERRITE GRANULES, METHOD OF MANUFACTURING MnZn-BASED FERRITE CORE AND MnZn-BASED FERRITE CORE 审中-公开
标题翻译：基于MnZn的粉状粉末，基于MnZn的粉状颗粒，制造基于MnZn的铁素体芯和基于MnZn的铁素体芯的方法
公开(公告)号：JP2012180258A
公开(公告)日：2012-09-20
申请号：JP2011046067
申请日：2011-03-03
申请人： Tdk Corp , Tdk株式会社
发明人： KURUMA SEIRAI , YASUHARA KATSUSHI , WATANABE MASAHIKO
IPC分类号： C01G49/00 , C01G53/00 , C04B35/38 , C04B35/622 , H01F1/34
摘要： PROBLEM TO BE SOLVED: To provide an MnZn-based ferrite core, which has a highly saturated magnetic flux density (Bs) and less core loss and enables reduction in manufacturing and reduction in environmental load.SOLUTION: An MnZn-based ferrite sintered body is formed by using an MnZn-based ferrite powder or granules, containing metallic iron, which are intermediate products as raw material.
摘要翻译：要解决的问题：提供具有高饱和磁通密度（Bs）和较低铁心损耗的MnZn系铁氧体磁芯，能够减少制造和降低环境负荷。解决方案：通过使用以中间产物为原料的含有金属铁的MnZn系铁氧体粉末或颗粒形成MnZn系铁氧体烧结体。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2008251848A NiMnZn-BASED FERRITE AND ITS MANUFACTURING METHOD 审中-公开
标题翻译：基于NiMnZn的铁素体及其制造方法
公开(公告)号：JP2008251848A
公开(公告)日：2008-10-16
申请号：JP2007091612
申请日：2007-03-30
申请人： Tdk Corp , Tdk株式会社
发明人： MORI KENTARO , KURUMA SEIRAI , WATANABE MASAHIKO , AOKI TAKUYA , KURODA TOMOFUMI
IPC分类号： H01F1/34 , C01G53/00 , C04B35/38
摘要： PROBLEM TO BE SOLVED: To provide NiMnZn-system ferrite which is dramatically increased in saturation flux density while remarkably reduced in magnetic loss compared with a conventional one, and to provide its manufacturing method. SOLUTION: The NiMnZn-system ferrite contains, as main components, 55.0 to 61.5 mol% of a ferric oxide in terms of Fe 2 O 3 , 2.5 to 7.5 mol% of a nickel oxide in terms of NiO, 4.5 to 15.5 mol% of a zinc oxide in terms of ZnO, and a manganese oxide (in terms of MnO) for the remaining part. The NiMnZn-based ferrite uses material powder having a specific surface area of 3.0 m 2 /g or larger (measured by the BET method) as a material of NiO, one of the main components, and is manufactured by burning. The NiMnZn-based ferrite has a saturation flux density Bs of 470 mT or higher (measured in a magnetic field of 1194 A/m) at 100°C and a magnetic loss Pcv of 790 kW/m 3 or smaller (measured at 100 kHz and 200 mT) at 100°C, and satisfies a relationship between the saturation flux density Bs and the magnetic loss Pcv which is expressed by an expression (1): Pcv≤(11.201)×Bs-4901.3. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供与常规的相比，磁损耗显着降低的饱和磁通密度显着增加的NiMnZn系铁氧体，并提供其制造方法。解决方案：NiMnZn系铁氧体作为主要组分含有以Fe，SB，SiO 3为基准的55.0至61.5mol％的氧化铁，2.5至7.5 以NiO表示的氧化镍的摩尔％，ZnO的氧化锌为4.5〜15.5摩尔％，剩余部分为氧化锰（以MnO计）。 NiMnZn基铁氧体使用比表面积为3.0m 2 / SP / g以上的材料粉末（通过BET法测定）作为主要成分之一的NiO的材料，制造通过燃烧。 NiMnZn系铁氧体在100℃下的饱和磁通密度Bs为470mT以上（在1194A / m的磁场中测定），磁损耗Pcv为790kW / m 3 / SP> 或更小（在100kHz和200mT下测量），并且满足由表达式（1）表示的饱和磁通密度Bs和磁损耗Pcv之间的关系：Pcv≤（11.201）×Bs-4901.3 。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2007269502A Mn-Zn FERRITE MATERIAL 有权
标题翻译：锰锌铁素体材料
公开(公告)号：JP2007269502A
公开(公告)日：2007-10-18
申请号：JP2006093716
申请日：2006-03-30
申请人： Tdk Corp , Tdk株式会社
发明人： ISHIKURA TOMOKAZU , SAKANO SHINICHI , WATANABE MASAHIKO
IPC分类号： C04B35/38 , H01F1/34
CPC分类号： H01F1/344 , C01G49/009 , C01P2006/42 , C04B35/2683 , C04B35/6262 , C04B35/62695 , C04B2235/3208 , C04B2235/3251 , C04B2235/3262 , C04B2235/3277 , C04B2235/3284 , C04B2235/3418 , C04B2235/6584 , C04B2235/786 , H01F1/36
摘要： PROBLEM TO BE SOLVED: To provide an Mn-Zn ferrite material showing little magnetic field degradation in a high-frequency band of ≥1 MHz. SOLUTION: The Mn-Zn ferrite material comprises, as main constituents, 53-56 mol% Fe 2 O 3 , ≤7 mol% (inclusive of 0 mol%) ZnO and the balance being MnO, and as accessory constituents, 0.15-0.65 wt.% Co in terms of CoO, 0.01-0.045 wt.% Si in terms of SiO 2 and 0.05-0.40 wt.% Ca in terms of CaCO 3 , wherein the δ value (the amount of cation defect) defined in the ferrite compositional formula: (Zna2+, Tib4+, Mnc2+, Mnd3+, Fee2+, Fef3+, Cog2+, Coh3+)3O4+δ satisfies the relation: 3×10 -3 ≤δ≤7×10 -3 , and the mean grain size is larger than 8 μm but not larger than 15 μm. In the Mn-Zn ferrite material, the power loss is ≤3,000 [kW/m 3 ] in the temperature range from room temperature to 125°C at an excitation magnetic flux density of 50 mT and a measurement frequency of 2 MHz, and the magnetic field degradation rate is ≤100%. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供在≥1MHz的高频带中显示出很小的磁场劣化的Mn-Zn铁氧体材料。解决方案：Mn-Zn铁氧体材料作为主要成分包含53-56mol％Fe 2 3 ，≤7mol％（包括0mol ％）ZnO和余量为MnO，作为辅助成分，以CoO计为0.15-0.65重量％的Co，换算成SiO 2为0.01-0.045重量％的Si和0.05-0.40重量％以CaCO 3 SBS 3％计的Ca，其中铁氧体组成式中定义的δ值（阳离子缺陷量）（Zna2 +，Tib4 +，Mnc2 +，Mnd3 +，Fee2 +，Fef3 +，Cog2 +，Coh3 + ）3O4 +δ满足关系：3×10 -3 ≤δ≤7×10 -3 ，平均粒径大于8μm但不大于 15μm。在Mn-Zn铁氧体材料中，在50mT的激励磁通密度下，在室温至125℃的温度范围内的功率损耗为≤3,000[kW / m 3 / SP>]，测量频率为2MHz，磁场退化率≤100％。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2007197254A METHOD OF MANUFACTURING Mn-Zn FERRITE 审中-公开
标题翻译：制备锰锌铁矿的方法
公开(公告)号：JP2007197254A
公开(公告)日：2007-08-09
申请号：JP2006017516
申请日：2006-01-26
申请人： Tdk Corp , Tdk株式会社
发明人： AOKI TAKUYA , WATANABE MASAHIKO , TAKANE SUSUMU , KURUMA SEIRAI
IPC分类号： C04B35/38 , C01G49/00 , C04B35/36 , H01F1/34
摘要： PROBLEM TO BE SOLVED: To provide an Mn-Zn ferrite having high saturation magnetic flux density Bs and low core loss. SOLUTION: In the method of manufacturing the Mn-Zn ferrite containing 55.1-60.0 mol% iron oxide expressed in terms of Fe 2 O 3 , 30.0-39.0 mol% manganese oxide expressed in terms of MnO, 1.0-5.0 mol% nickel oxide expressed in terms of NiO and the balance being zinc oxide expressed in terms of ZnO as main components and containing silicon oxide, calcium oxide and niobium oxide as additive components to the main components, an additive raw material of each additive component is a granular material having a physical property of ≥10.0 m 2 /g specific surface area in the form of the additive component at the addition. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有高饱和磁通密度Bs和低铁损的Mn-Zn铁氧体。解决方案：在以Fe（SB）2 O 3 表示的含有55.1-60.0摩尔％的氧化铁的Mn-Zn铁氧体的制造方法中，30.0-39.0摩尔以MnO表示的氧化锰％，以NiO表示的1.0-5.0摩尔％的氧化镍，其余为氧化锌，以ZnO为主要成分，以氧化硅，氧化钙和铌氧化物为添加成分主要成分，各添加成分的添加剂原料是添加成分为添加成分的形态的物理性质为≥10.0m2 / SP / g的比表面积的粒状物质。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2005194134A Ferrite core and its production method 审中-公开
标题翻译：铁素体及其生产方法
公开(公告)号：JP2005194134A
公开(公告)日：2005-07-21
申请号：JP2004002088
申请日：2004-01-07
申请人： Tdk Corp , Tdk株式会社
发明人： WATANABE MASAHIKO , YASUHARA KATSUSHI
IPC分类号： C04B35/38 , C04B35/26 , H01F1/34 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a ferrite core which has a small standard deviation σ of magnetic characteristics such as initial magnetic permeability or DC superimposing characteristic and a small R expressing the difference between the best point and worst point of each characteristic as an index of dispersion and which has excellent magnetic characteristics, and to provide a method for producing the same. SOLUTION: The method for producing the ferrite core includes a process for firing a formed body which consists of a ferrite raw material containing a Zn compound by using a firing jig made of ferrite containing an oxide of Zn. The difference (M2-M1) between the second molar ratio (M2; mol%) being the molar ratio of the content of the oxide of Zn in the firing tool to the total amount of the ferrite and the first molar ratio (M1; mol%) being the molar ratio of the content of the Zn compound in the formed body to the total amount of the ferrite raw material is set to be -5 mol%≤M2-M1≤5 mol% expressed in terms of ZnO. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供具有初始磁导率或DC叠加特性等磁特性的小标准偏差σ的铁素体磁芯和表示各特性的最佳点与最差点之间的差的小R，作为分散度指数，并具有优异的磁特性，并提供其制造方法。解决方案：铁氧体磁芯的制造方法包括通过使用由含有Zn的氧化物的铁氧体构成的烧成夹具，烧成由含有Zn化合物的铁素体原料构成的成形体的方法。第二摩尔比（M2;摩尔％）之间的差异（M2;摩尔％）是烧成工具中的Zn的氧化物与铁素体的总量的摩尔比和第一摩尔比（M1;摩尔％）是将成形体中的Zn化合物的含量与铁素体原料的总量的摩尔比设定为以ZnO表示的-5摩尔％≤M2-M1≤5摩尔％。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2012204814A Core, transformer, choke coil and switching power supply device 审中-公开
标题翻译：芯，变压器，切线和开关电源装置
公开(公告)号：JP2012204814A
公开(公告)日：2012-10-22
申请号：JP2011071080
申请日：2011-03-28
申请人： Tdk Corp , Tdk株式会社
发明人： MORI KENTARO , YASUHARA KATSUSHI , GAMO MASAHIRO , SUSA SHOJI , WATANABE MASAHIKO
IPC分类号： H01F27/24 , H01F30/00 , H01F37/00 , H02M3/28
摘要： PROBLEM TO BE SOLVED: To provide a core which is low in heat generation and excellent in temperature characteristics.SOLUTION: A core 10 is a core made of a ferrite sintered body which is used in a transformer, a choke coil or the like. The core 10 comprises a plurality of core members 10B which pass through a range Ca defined by extending a region surrounded by a coil 12 in an axial direction of the coil 12, and which divide the core 10 into a plurality of sections along the axial direction of the coil 12. The plurality of core members 10B are brought into contact with one another at least at one position. Further, at least two of the plurality of core members 10B are divided so as to be parallel in terms of magnetic resistance.
摘要翻译：要解决的问题：提供一种发热性低，温度特性优异的芯体。解决方案：芯10是用于变压器，扼流线圈等的铁氧体烧结体制成的芯。芯10包括多个芯体10B，其穿过线圈12的轴向延伸由线圈12包围的区域限定的范围Ca，并且将芯体10沿着轴向方向分成多个部分多个芯构件10B至少在一个位置彼此接触。此外，多个芯构件10B中的至少两个被分割为在磁阻方面是平行的。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2007197253A METHOD OF MANUFACTURING Mn-Zn FERRITE 审中-公开
标题翻译：制备锰锌铁矿的方法
公开(公告)号：JP2007197253A
公开(公告)日：2007-08-09
申请号：JP2006017515
申请日：2006-01-26
申请人： Tdk Corp , Tdk株式会社
发明人： AOKI TAKUYA , WATANABE MASAHIKO , TAKANE SUSUMU , KURUMA SEIRAI
IPC分类号： C04B35/38 , C01G49/00 , C01G53/00 , C04B35/36 , H01F1/34 , H01F1/36
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing Mn-Zn ferrite lower in core loss compared to a conventionally offered one. SOLUTION: This is the method of manufacturing the Mn-Zn ferrite containing 53.0-60.0 mol% iron oxide expressed in terms of Fe 2 O 3 , 30.0-40.0 mol% manganese oxide expressed in terms of MnO, 0-5.0 mol% nickel oxide expressed in terms of NiO and the balance being zinc oxide expressed in terms of ZnO as main components and containing silicon oxide, calcium oxide and niobium oxide as additive components. The form of the additive components at the addition of the additive components is powder obtained by weighing a base raw material of each additive component, mixing and calcining to have ≥3 m 2 /g specific surface area. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供与常规提供的方法相比，铁损较低的Mn-Zn铁氧体的制造方法。＆lt; P＆gt;解决方案：这是制造含有以Fe 2 O 3，SB 3 O 3，30.0-40.0表示的53.0-60.0mol％氧化铁的Mn-Zn铁氧体的制造方法以MnO表示的摩尔％氧化锰，以NiO表示的0-5.0摩尔％的氧化镍，余量为氧化锌，以ZnO为主要成分，并含有氧化硅，氧化钙和铌氧化物作为添加成分。添加成分添加成分的添加成分的形式是将各添加成分的基础原料称重，混合煅烧得到比表面积≥3m2 SP / 2的粉末。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2007112695A METHOD FOR PRODUCING Mn FERRITE 审中-公开
标题翻译：锰铁矿生产方法
公开(公告)号：JP2007112695A
公开(公告)日：2007-05-10
申请号：JP2006093717
申请日：2006-03-30
申请人： Tdk Corp , Tdk株式会社
发明人： ISHIKURA TOMOKAZU , SAKANO SHINICHI , WATANABE MASAHIKO
IPC分类号： C04B35/38 , C01G49/00 , H01F1/34
摘要： PROBLEM TO BE SOLVED: To provide a high-performance Mn ferrite wherein loss is suppressed in a high-frequency range of about 500 kHz and higher. SOLUTION: After firing, a heat-treatment is preferably performed at a heat-treatment temperature of 200-350°C and preferably continued for 0.3-12 hr to reduce the loss of the Mn ferrite. The above heat-treatment effect can be alternatively performed by decreasing the drop rate during temperature dropping. Here, the temperature drop rate is favorably adjusted to ≤45°C/hr when annealing MnZn ferrite. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种在约500kHz及更高的高频范围内抑制损耗的高性能Mn铁氧体。解决方案：焙烧后，优选在200-350℃的热处理温度下进行热处理，优选在0.3-12小时内进行热处理，以减少Mn铁氧体的损失。上述热处理效果也可以通过降低温度下降时的下降率来进行。这里，退火MnZn铁氧体时，温度下降率被有利地调整为≤45℃/小时。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2003318040A Method of fixing magnetic ferrite core and transformer 审中-公开
标题翻译：固定磁铁芯和变压器的方法
公开(公告)号：JP2003318040A
公开(公告)日：2003-11-07
申请号：JP2002117768
申请日：2002-04-19
申请人： Tdk Corp , Tdk株式会社
发明人： SEZAI YUJI , WATANABE MASAHIKO
IPC分类号： H01F1/34 , H01F27/26
摘要： PROBLEM TO BE SOLVED: To provide a method of fixing magnetic ferrite core by which the original characteristics of a magnetic ferrite core are not deteriorated, and to provide a transformer that is manufactured by using the method and can transmit data signals with high accuracy by preventing the transmission errors by reducing the distortion of transmission waveforms and noise when the transformer makes data transmission. SOLUTION: The amount of deterioration ΔTHD of the THD characteristic of each magnetic ferrite core 1 constituting the transformer 100 due to stresses is suppressed to ≤5 dB by controlling stresses σ applied to the core 1 within the range of -0.96 MPa≤σ≤0.96 MPa. Therefore, the clamp forces of fittings 20a and 20b used for fixing the ferrite cores 1 and 1 can be set to values lower than those set in the conventional example. Alternatively, the ferrite cores 1 and 1 are fixed by using t tape instead of the fittings 20a and 20b. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种固定磁性铁氧体磁芯的方法，通过该方法磁性铁氧体磁芯的原始特性不劣化，并提供通过使用该方法制造并可以高传输数据信号的变压器当变压器进行数据传输时，通过减少传输波形和噪声的失真来防止传输错误。解决方案：通过将施加在芯体1上的应力σ控制在-0.96MPa≤0.96的范围内，由于应力而构成变压器100的每个磁性铁氧体磁芯1的THD特性的劣化量ΔTHD被抑制到≤5dB σ≤0.96MPa。因此，用于固定铁氧体磁芯1和1的配件20a和20b的夹紧力可以设定为低于常规例中设定的值。或者，通过使用t带而不是配件20a和20b来固定铁氧体磁心1和1。版权所有（C）2004，JPO

10. 发明专利

JP2003300775A Mn-Zn BASED FERRITE MAGNETIC MATERIAL AND PRODUCTION METHOD THEREFOR 有权
标题翻译：锰锌基镁铁磁材料及其制备方法
公开(公告)号：JP2003300775A
公开(公告)日：2003-10-21
申请号：JP2002105894
申请日：2002-04-09
申请人： Tdk Corp , Tdk株式会社
发明人： SEZAI YUJI , WATANABE MASAHIKO
IPC分类号： C04B35/38 , H01F1/34
摘要： PROBLEM TO BE SOLVED: To obtain an Mn-Zn based ferrite which has reduced THD (total harmonic distortion), and is suitable for xDSL (x digital subscriber line). SOLUTION: The Mn-Zn based ferrite magnetic material is obtained by incorporating, as assistant components, by weight, 0.002 to 0.040% SiO 2 and 0.003 to 0.045% CaO into fundamental components containing, by mol, 51.5 to 54.5% Fe 2 O 3 and 19.0 to 27.0% ZnO, and the balance substantially MnO, and also, the content of P is ≤0.010 wt.%. COPYRIGHT: (C)2004,JPO

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式