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1. 发明专利

JP2014040368A Ferrite composition, ferrite core and electronic component 有权
标题翻译：铁素体组合物，铁素体和电子组件
公开(公告)号：JP2014040368A
公开(公告)日：2014-03-06
申请号：JP2013198741
申请日：2013-09-25
申请人： Tdk Corp , Tdk株式会社
发明人： ITO MAMORU , ITO KO , KAWAGUCHI TATSUYA , MATSUNO KENICHIRO , SASAKI HIROKATSU , ONIZUKA MASAHIRO
IPC分类号： C04B35/30 , H01F1/34 , H01F1/37
摘要： PROBLEM TO BE SOLVED: To provide a ferrite composition having a small electric power loss Pcv even in a high frequency region (e.g., 1 MHz or more) and a high initial magnetic permeability and specific resistance, and to provide a ferrite core constituted of the ferrite composition, and an electronic component including the ferrite core.SOLUTION: The ferrite composition is characterized in that a main component contains iron oxide in an amount of 47.1-49.95 mol%, expressed in terms of FeO, copper oxide in an amount of 2.3-10.0 mol%, expressed in terms of CuO; and zinc oxide in an amount of 27.6-32.0 mol%, expressed in terms of ZnO, with the balance being nickel oxide, and as sub-components, phosphorus is contained in an amount of 2-63 ppm, expressed in terms of P and zirconium oxide is contained in an amount of 43-5,980 ppm, expressed in terms of ZrO, each based on 100 mol% of the main component. Further, manganese oxide may be contained in an amount of 0.01-2.1 mol%, expressed in terms of MnO, in the main component.
摘要翻译：要解决的问题：为了提供即使在高频区域（例如，1MHz以上）和高初始磁导率和电阻率下也具有小功率损耗Pcv的铁氧体组合物，并且提供由铁氧体组合物和包含铁氧体磁芯的电子部件。溶解性：铁素体组合物的特征在于，主成分含有以FeO计的量为47.1〜49.95摩尔％的氧化铁，氧化铜量为2.3 -10.0摩尔％，以CuO表示; 氧化锌的含量为27.6〜32.0摩尔％，以ZnO表示，余量为氧化镍，作为副成分，磷含量为2-63ppm，用P表示，氧化锆的含量为43-5,980ppm，以ZrO表示，各自以主成分的100摩尔％为基准。此外，主要成分中的锰氧化物的含量可以以MnO计，为0.01〜2.1摩尔％。

2. 发明专利

JP2013087010A Ferrite composition, ferrite core and electronic component 有权
标题翻译：铁素体组合物，铁素体和电子组件
公开(公告)号：JP2013087010A
公开(公告)日：2013-05-13
申请号：JP2011228160
申请日：2011-10-17
申请人： Tdk Corp , Tdk株式会社
发明人： TAKAGI EIKO , ITO KO , ITO MAMORU , KAWAGUCHI TATSUYA , SASAKI HIROKATSU
IPC分类号： C04B35/30 , C01G49/00 , H01F1/34
摘要： PROBLEM TO BE SOLVED: To provide a ferrite composition that is inexpensive and can maintain a high saturation magnetic density Bs, and to provide a ferrite core comprising the ferrite composition, and an electronic component having the ferrite core.SOLUTION: The ferrite composition contains, as main components, 47.0 to 49.7 mol% of iron oxide in terms of FeO, 18.0 to 26.0 mol% of zinc oxide in terms of ZnO, 13.0 to 20.0 mol% of nickel oxide in terms of NiO, 4.0 to 8.0 mol% of magnesium oxide in terms of MgO, and the balance of copper oxide. The composition further contains, as accessary components with respect to 100 wt.% of the above main components, 50 to 4000 ppm of zirconium oxide in terms of ZrO, 100 to 800 ppm of silicon dioxide in terms of SiOand 0.05 to 0.25 wt.% of tungsten oxide in terms of WO.
摘要翻译：要解决的问题：提供廉价并且可以保持高饱和磁密度Bs的铁氧体组合物，并提供包含铁氧体组合物的铁氧体磁心和具有铁氧体磁芯的电子部件。铁素体组合物以Fe 2 O 3 含有47.0〜49.7摩尔％的氧化铁作为主要成分， / SB>，18.0〜26.0摩尔％的ZnO换算的氧化锌，以NiO换算为氧化镍为13.0〜20.0摩尔％，MgO为4.0〜8.0摩尔％，氧化铜为余量。该组合物还含有相对于100重量％的上述主要成分的附着成分，以ZrO 2为基准，氧化锆为50〜4000ppm，100〜800ppm 以SiO 2 表示的二氧化硅和0.05〜0.25重量％的氧化钨，根据WO 3 。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2013001636A Ferrite composition and electronic component 有权
标题翻译：铁素体组合物和电子元件
公开(公告)号：JP2013001636A
公开(公告)日：2013-01-07
申请号：JP2011138082
申请日：2011-06-22
申请人： Tdk Corp , Tdk株式会社
发明人： ITO MAMORU , ITO KO , SASAKI HIROKATSU , KAWAGUCHI TATSUYA , TAKAGI EIKO
IPC分类号： C04B35/38 , C01G49/00 , H01F1/34
摘要： PROBLEM TO BE SOLVED: To provide an electronic component whose environmental temperature or using temperature is near a room temperature or an outside air temperature and below the operation temperature of a conventional power transformer, namely, in the range of 25-59°C, and which can reconcile reduction of power loss with high saturation magnetic flux density under an environment of high frequency and low magnetic field, and to provide a ferrite composition suitable for the electronic component.SOLUTION: This ferrite composition includes 52.5-55.5 mol% iron oxide in terms of FeO, and 6.0-19.0 mol% zinc oxide in terms of ZnO as main components, wherein the residue thereof is constituted of manganese oxide, and also includes as accessory components, with respect to 100 wt% of the main components, 50-300 ppm silicon oxide in terms of SiO, 110-1,120 ppm calcium oxide in terms of CaO, and further, the content of Pb is ≤7 ppm and the content of Cd is ≤7 ppm, with respect to 100 wt% of the main components.
摘要翻译：要解决的问题：为了提供环境温度或使用温度接近室温或外部空气温度并低于常规电力变压器的操作温度的电子部件，即在25-59°的范围内并且其可以在高频和低磁场的环境下协调功率损耗的降低与高饱和磁通密度的关系，并提供适合于电子部件的铁素体组合物。解决方案：该铁氧体组合物以Fe 2 O 3 包括52.5-55.5mol％的氧化铁，6.0 -19.0mol％以ZnO为主要成分的氧化锌，其中残留物由氧化锰构成，并且还包括相对于100重量％的主要成分为辅助成分的氧化硅为50-300ppm 的SiO 2 ，以CaO计为110-1,120ppm的氧化钙，此外，Pb的含量为≤7ppm，Cd的含量为≤7ppm，相对于至100重量％的主要成分。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2012204637A Ferrite composition for radio wave absorber and ferrite core for radio wave absorber 有权
标题翻译：无线电波吸收器的铁素体组合物和无线电波吸收器的铁素体芯
公开(公告)号：JP2012204637A
公开(公告)日：2012-10-22
申请号：JP2011068278
申请日：2011-03-25
申请人： Tdk Corp , Tdk株式会社
发明人： ITO TAKAHIRO , ITO KO
IPC分类号： H01F1/34 , C04B35/38 , H01F1/00 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To obtain a radio wave absorber which exhibits excellent chipping resistance while maintaining high return loss in the frequency band of 30-300 MHz, and to reduce the cost of a ferrite core by not containing NiO.SOLUTION: The ferrite composition for radio wave absorber contains, as main components, 44-48 mol% of iron oxide in terms of FeO, and 23.1-26 mol% of zinc oxide in terms of ZnO, and the remainder of manganese oxide and contains, as accessory components, 50-300 ppm of silicon oxide in terms of SiO, 110-1120 ppm of calcium oxide in terms of CaO, and 0.1-0.9 wt% of cobalt oxide in terms of CoO for 100 wt% of the main components.
摘要翻译：解决的问题：为了获得在30-300MHz的频带中保持高的回波损耗而显示出优异的耐崩裂性的电波吸收体，并且通过不含有NiO来降低铁氧体磁芯的成本。
解决方案：作为主要成分的无线电波吸收体用铁氧体组合物含有以Fe 2 O

5. 发明专利

JP2011097524A Ferrite composition, magnetic member for antenna element, and antenna element 有权
标题翻译：铁素体组合物，天线元件磁性元件和天线元件
公开(公告)号：JP2011097524A
公开(公告)日：2011-05-12
申请号：JP2009252165
申请日：2009-11-02
申请人： Tdk Corp , Tdk株式会社
发明人： KAWAGUCHI TATSUYA , ITO KO , ITO MAMORU , MATSUNO KENICHIRO , SASAKI HIROKATSU
IPC分类号： H01P11/00 , C04B35/30 , H01F1/34 , H01Q7/06
摘要： PROBLEM TO BE SOLVED: To provide a ferrite composition having a high real part μ' and a low imaginary part μ" of a complex magnetic permeability at high frequency band (for instance, 13.56 MHz), a magnetic member for an antenna element constructed by the ferrite composition, and the antenna element having the member. SOLUTION: A ferrite composition includes: 46.0 to 49.89 mol% iron oxide in terms of Fe 2 O 3 , 2.3 to 19.0 mol% copper oxide in terms of CuO, 18.0 to 25.0 mol% zinc oxide in terms of ZnO, and the balance of nickel oxide; and includes as accessory component for a principal component of 100 mol%, 2 to 63 ppm phosphorus in terms of P, 43 to 5,980 ppm zirconium oxide in terms of ZrO 2 , and 0.3 to 2 wt.% cobalt oxide in terms of CoO. Further, 0.01 to 2.1 mol% manganese oxide in terms of Mn 2 O 3 may be included. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供高频带（例如，13.56MHz）的复磁导率的实部μ'和低虚部μ“的铁氧体组合物，用于天线的磁性构件由铁氧体组合物构成的元件，以及具有该构件的天线元件。解决方案：铁氧体组合物包括：以Fe ，2.3〜19.0摩尔％的氧化铜，CuO为18.0〜25.0摩尔％，ZnO为氧化锌，余量为氧化镍，作为主成分的配合成分为100摩尔％，2 以P为43ppm的磷，43〜5,980ppm的氧化锆（以ZrO 2 SB 2计）和0.3〜2重量％的CoO换算的氧化钴，进一步，0.01〜2.1摩尔％的锰氧化物可以包括在Mn 2 3 中。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2011096977A Ferrite composition, ferrite core, and electronic component 有权
标题翻译：铁素体组合物，铁素体和电子组件
公开(公告)号：JP2011096977A
公开(公告)日：2011-05-12
申请号：JP2009252166
申请日：2009-11-02
申请人： Tdk Corp , Tdk株式会社
发明人： KAWAGUCHI TATSUYA , ITO KO , ITO MAMORU , MATSUNO KENICHIRO , SASAKI HIROKATSU
IPC分类号： H01F1/34 , C04B35/30
摘要： PROBLEM TO BE SOLVED: To provide a ferrite composition which has small power loss Pcv even in a high frequency range (for example, ≥1 MHz) and has high saturation magnetic flux density and specific resistance, to provide a ferrite core composed of the ferrite composition, and to provide an electronic component including the ferrite core. SOLUTION: The ferrite composition contains, as main components, 45.3 to 49.89 mol% of iron oxide in terms of Fe 2 O 3 , 6.0 to 13.0 mol% of copper oxide in terms of CuO, and 22.0 to 28.0 mol% of zinc oxide in terms of ZnO, and the balance consisting of nickel oxide, and the ferrite composition contains, as subcomponents, 2 to 63 ppm of phosphorus in terms of P, 45 to 2,500 ppm of zirconium oxide in terms of ZrO 2 , and 0.01 to 0.5 wt.% of tungsten oxide in terms of WO 3 against 100 mol% of the main components. Further, the ferrite composition may contain 0.01 to 2.1 mol% of manganese oxide in terms of Mn 2 O 3 in the main components. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供即使在高频范围（例如，≥1MHz）下具有小的功率损耗Pcv并且具有高的饱和磁通密度和电阻率的铁氧体组合物，以提供一种铁氧体磁芯，的铁素体组合物，并且提供包括铁氧体磁芯的电子部件。 <铁>组合物铁氧体组合物含有以Fe SB 2 O 3 / SB 3计的氧化铁的45.3〜49.89摩尔％，6.0〜13.0摩尔％氧化铜以CuO计，氧化锌为22.0〜28.0摩尔％，余量由氧化镍构成，铁素体组合物以P计45份含有2〜63ppm的磷至2500ppm氧化锆（以ZrO 2 SBS计）和0.01至0.5重量％的氧化钨（以WO 3 / SB 3计）相对于100摩尔％的主要组分。此外，主要成分中的铁素体组合物中可以含有0.01〜2.1摩尔％的氧化锰，以Mn O 3 计。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2001203105A OXIDE MAGNETIC MATERIAL, COIL USING THE SAME, METHOD OF MANUFACTURING THE MATERIAL, AND METHOD OF MANUFACTURING THE COIL 失效
公开(公告)号：JP2001203105A
公开(公告)日：2001-07-27
申请号：JP2000012363
申请日：2000-01-21
申请人： TDK CORP
发明人： ITO KO , TAKAHASHI YUKIO
IPC分类号： C01G49/00 , C04B35/26 , C04B35/30 , C04B35/622 , H01F1/34 , H01F41/04
摘要： PROBLEM TO BE SOLVED: To provide an oxide magnetic material, that is improved with respect to the influence of ZrO2 and Y2O3 which are mixed in the material, when the material is crushed by using a wet internal circulation medium agitating mill and partially stabilized zirconia as media beads, coils, etc. SOLUTION: The oxide magnetic material is composed essentially of Fe2O3, ZnO, NiO, and CuO containing 0.007-0.028 wt.% Y2O3, 0.12-0.55 wt.% ZrO2, and 0.03-10.12 wt.% Bi2O3.

8. 发明专利

JPH11261270A SHIELDING CASE 失效
公开(公告)号：JPH11261270A
公开(公告)日：1999-09-24
申请号：JP5834098
申请日：1998-03-10
申请人： TDK CORP
发明人： NIHEI YOSHITO , SAKURAI BUNGO , ITO KO
IPC分类号： H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a shielding case that can respond to higher frequency of electronic appliances, and prevent radiation of electromagnetic noise to the outside and impact of reflected waves to internal parts. SOLUTION: This shielding case has a double structure of an internal layer 5 containing a magnetic body 7 to damp noise and an external layer 6 comprising a conductive body to block and reflect noise. Electromagnetic wave noise radiated from electronic parts inside the shielding case receives noise damping action in the internal layer 5, reflection action toward inside in the external layer 6, and resumed damping action of reflected waves in the internal layer 5.

9. 发明专利

JPH10303012A NON-MAGNETIC MATERIAL FOR COIL, AND COIL PARTS 失效
公开(公告)号：JPH10303012A
公开(公告)日：1998-11-13
申请号：JP12347097
申请日：1997-04-26
申请人： TDK CORP
发明人： ITO KO , KAKINUMA OSAMU , ONIZUKA MASAHIRO
IPC分类号： H01F1/34 , H01F17/04
摘要： PROBLEM TO BE SOLVED: To allow simultaneous sintering with Ag without degrading characteristics in a high frequency range, by allowing Fe2 O3 to be a main component while at least Bi is contained as sub-component. SOLUTION: Relating to a non-magnetic material, Fe2 O3 is a main component while at least Bi is comprised as a sub-component. The content of the Bi is about 0.5-15.0 wt.% as reduced metal, with the Bi present in grain boundary. The form of presence of the Bi in grain boundary is, though not limited, at least BiFeO3 or Bi2 Fe4 O9 , being solid solution in Fe2 O3 . the non-magnetic material is used as a non-magnetic layer of a laminated coil comprising a non- magnetic layer and an electrode layer. With this, sintering at 900 deg.C or below is possible, while simultaneous sintering with such electrode as main component being Ag whose resistivity is low is possible, so that an excellent high-frequency characteristics and high quality factor Q are provided.

10. 发明专利

JP2014216495A 軟磁性体組成物、磁芯、コイル型電子部品および成形体の製造方法审中-公开
标题翻译：软磁材料组合物，磁芯，线圈型电子元件及其制造工艺
公开(公告)号：JP2014216495A
公开(公告)日：2014-11-17
申请号：JP2013092892
申请日：2013-04-25
申请人： Tdk株式会社 , Tdk Corp , Tdk株式会社
发明人： YAMAZAKI TSUNEHIRO , MATSUNO KENICHIRO , MURAKAMI MUTSUYOSHI , ITO MAMORU , SASAKI HIROKATSU , NAKAMURA KAZUHIRO , TAKAGI EIKO , ITO KO , MURASE TAKU , KIDO OSAMU
IPC分类号： H01F1/22 , B22F3/00 , C22C38/00 , H01F1/147 , H01F1/33 , H01F27/255 , H01F41/02
CPC分类号： B22F3/00 , C22C38/00 , H01F1/14 , H01F1/22 , H01F1/33 , H01F27/24 , H01F41/02
摘要：【課題】成形品の強度を向上させることができる軟磁性体組成物およびその製造方法、磁芯、並びに、コイル型電子部品を提供することを目的とする。【解決手段】複数の軟磁性合金粒子と、軟磁性合金粒子間に存在する粒界と、を有する軟磁性体組成物である。軟磁性合金粒子が、Fe−Si−Cr系合金またはFe−Si−Al系合金で構成され、粒界の少なくとも三重点には、キャリア粒子42が存在し、キャリア粒子42の周囲には、Si含有相が存在する。【選択図】図3
摘要翻译：要解决的问题：提供能够提高成型强度的软磁性材料组合物，提供磁芯和线圈型电子部件。软磁性材料组合物包括：多个软磁性合金粒子和晶界存在于软磁合金颗粒之间。软磁性合金粒子由Fe-Si-Cr系合金或Fe-Si-Al系合金构成。至少在晶界的三重点处存在载体颗粒42。在载体颗粒42的周围存在含Si的相。

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