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1. 发明授权

US08518289B2 Mn-Zn-Co ferrite core and method for producing the same 有权
标题翻译： Mn-Zn-Co铁氧体磁芯及其制造方法
公开(公告)号：US08518289B2
公开(公告)日：2013-08-27
申请号：US13146830
申请日：2010-01-29
申请人： Hirofumi Yoshida , Yukiko Nakamura , Satoshi Goto
发明人： Hirofumi Yoshida , Yukiko Nakamura , Satoshi Goto
IPC分类号： C04B35/38
CPC分类号： H01F41/0246 , C01G49/0072 , C01G49/009 , C01P2002/52 , C01P2004/03 , C01P2004/61 , C01P2006/12 , C01P2006/40 , C01P2006/42 , C04B35/265 , C04B35/62695 , C04B2235/3208 , C04B2235/3244 , C04B2235/3251 , C04B2235/3262 , C04B2235/3275 , C04B2235/3284 , C04B2235/3418 , C04B2235/5409 , C04B2235/72 , C04B2235/724 , C04B2235/726 , C04B2235/727 , C04B2235/786 , C04B2235/96 , H01F1/344 , H01F1/36
摘要： A Mn—Zn—Co ferrite core includes a basic component, sub-components, and unavoidable impurities. As the sub-components, silicon oxide (in terms of SiO2): 50-400 mass ppm and calcium oxide (in terms of CaO): 1000-4000 mass ppm are added to the basic component consisting of iron oxide (in terms of Fe2O3): 51.0-53.0 mol %, zinc oxide (in terms of ZnO): more than 12.0 mol % and 18.0 mol % or less, cobalt oxide (in terms of CoO): 0.04-0.60 mol %, and manganese oxide (in terms of MnO): balance; Phosphorus, boron, sulfur, and chlorine in the unavoidable impurities are reduced as follows, phosphorus: less than 3 mass ppm, boron: less than 3 mass ppm, sulfur: less than 5 mass ppm, and chlorine: less than 10 mass ppm; and a ratio of a measured specific surface of the Mn—Zn—Co ferrite core to an ideal specific surface of the Mn—Zn—Co ferrite core satisfies: Measured specific surface/ideal specific surface
摘要翻译： Mn-Zn-Co铁氧体磁芯包括碱性组分，亚组分和不可避免的杂质。作为副成分，将氧化铁（以SiO 2计）：50〜400质量ppm，氧化钙（以CaO计）：1000-4000质量ppm添加到由氧化铁（以Fe 2 O 3计））：51.0-53.0摩尔％，氧化锌（以ZnO计）：大于12.0摩尔％和18.0摩尔％以下，氧化钴（以CoO计）：0.04〜0.60摩尔％，氧化锰的MnO）：平衡; 不可避免的杂质中的磷，硼，硫和氯还原如下，磷：小于3质量ppm，硼：小于3质量ppm，硫：小于5质量ppm，氯：小于10质量ppm; 并且Mn-Zn-Co铁氧体磁心的测定的比表面与Mn-Zn-Co铁氧体磁心的理想比表面的比率满足：测定的比表面/理想比表面<1500。

2. 发明授权

US08133405B2 Spinel-type ferrimagnetic particles, process for producing the same, and magnetic recording medium using the same 有权
标题翻译：尖晶石型亚铁磁性颗粒，其制造方法和使用其的磁记录介质
公开(公告)号：US08133405B2
公开(公告)日：2012-03-13
申请号：US12662956
申请日：2010-05-13
申请人： Hiroshi Yamamoto , Tsutomu Katamoto
发明人： Hiroshi Yamamoto , Tsutomu Katamoto
IPC分类号： H01F1/36 , C04B35/26 , C04B35/28 , C04B35/30 , C04B35/32 , C04B35/34 , C04B35/36 , C04B35/38
CPC分类号： H01F1/112 , B82Y30/00 , C01G49/0018 , C01G53/006 , C01P2002/32 , C01P2004/64 , C01P2006/12 , C01P2006/42 , C04B35/265 , C04B35/626 , C04B35/62605 , C04B35/62805 , C04B35/62807 , C04B35/62813 , C04B35/62881 , C04B35/63 , C04B2235/02 , C04B2235/3201 , C04B2235/3262 , C04B2235/3274 , C04B2235/3275 , C04B2235/3279 , C04B2235/3284 , C04B2235/444 , C04B2235/5409 , C04B2235/5454 , C04B2235/549 , C04B2235/72 , C04B2235/763 , G11B5/70668 , H01F1/113
摘要： Spinel-type ferrimagnetic particles having a composition represented by the formula: (MO)·n/2(Fe2O3) where M is a divalent metal and n is a molar ratio of Fe to M (n=Fe/M) which is from more than 2.05 to less than 2.5 (2.05
摘要翻译：具有由式（MO）·n / 2（Fe 2 O 3）表示的组成的尖晶石型亚铁磁性颗粒，其中M是二价金属，n是Fe与M（n = Fe / M）的摩尔比，其来自更多小于2.5（2.05

3. 发明申请

US20050238904A1 Mn-Zn based ferrite member 失效
标题翻译： Mn-Zn系铁氧体部件
公开(公告)号：US20050238904A1
公开(公告)日：2005-10-27
申请号：US11112759
申请日：2005-04-21
申请人： Takashi Kajino , Kenya Takagawa , Taku Murase , Takuya Aoki
发明人： Takashi Kajino , Kenya Takagawa , Taku Murase , Takuya Aoki
IPC分类号： C04B35/38 , B32B15/00 , C01G49/00 , C04B35/26 , H01F1/00 , H01F1/34 , H01F41/02
CPC分类号： C04B35/2658 , C01G49/0018 , C01G49/009 , C01P2006/42 , C04B35/62655 , C04B35/6303 , C04B35/64 , C04B2235/3208 , C04B2235/3212 , C04B2235/3232 , C04B2235/3239 , C04B2235/3244 , C04B2235/3251 , C04B2235/3256 , C04B2235/3262 , C04B2235/3263 , C04B2235/3284 , C04B2235/3286 , C04B2235/3287 , C04B2235/3293 , C04B2235/3294 , C04B2235/3298 , C04B2235/3418 , C04B2235/42 , C04B2235/656 , C04B2235/6567 , C04B2235/6584 , C04B2235/663 , C04B2235/77 , C04B2235/85 , C04B2235/96 , C22C29/12 , H01F1/344 , H01F41/0246 , Y10T428/12465 , Y10T428/12792
摘要： There is provided a Mn—Zn based ferrite member excellent in mass productivity, high in withstand voltage, low in loss and excellent in direct current superposition property. The Mn—Zn based ferrite member is provided with a surface layer portion having the properties that ρ5 defined in the specification satisfies the relation that ρ5≧103 Ωm and ρ50 defined in the specification satisfies the relation that ρ50≦102 μm. ρ5: (R0−R1)S/L5 (Ωm) ρ50: (R2−R3)S/L50 (μm)
摘要翻译：提供了一种质量生产率高，耐电压高，损耗低，直流叠加性优异的Mn-Zn系铁氧体部件。 Mn-Zn系铁氧体部件具有表面层部分，该表面层部分具有规范中规定的rho5的性能，满足说明书中规定的rho5≥10Ω的关系，并且rho50满足以下关系：妈妈妈妈。（R0-R1）S / L5（Omegam）rho50：（R2-R3）S / L50（母体）

4. 发明授权

US06940381B2 Mn-Zn based ferrite, magnetic core for transformer and transformer 失效
标题翻译： Mn-Zn系铁氧体，变压器用磁芯及变压器
公开(公告)号：US06940381B2
公开(公告)日：2005-09-06
申请号：US10732319
申请日：2003-12-11
申请人： Masahiko Watanabe , Katsushi Yasuhara
发明人： Masahiko Watanabe , Katsushi Yasuhara
IPC分类号： C04B35/38 , C04B35/26 , H01F1/34 , H01F1/36 , H01F17/04 , H01F19/08 , H01F27/255 , H01F27/32 , H01F27/02
CPC分类号： H01F1/344 , C04B35/2658 , C04B35/6261 , C04B35/62625 , C04B35/62655 , C04B35/63 , C04B2235/3208 , C04B2235/3251 , C04B2235/3262 , C04B2235/3275 , C04B2235/3284 , C04B2235/42 , C04B2235/604 , C04B2235/658 , C04B2235/786 , C04B2235/94 , H01F1/36 , H01F17/04 , H01F19/08 , H01F27/324
摘要： A Mn—Zn based ferrite having a main component comprised of 51 to 54 mol % of an iron oxide in Fe2O3 conversion, 14 to 21 mol % of a zinc oxide in ZnO conversion and the rest of a manganese oxide, wherein a content (α [ppm]) of cobalt oxide in a CoO conversion with respect to 100 wt % of the main component satisfies a relation formula below. Relation formula: Y1≦α≦Y2 (1) Note that Y1 and Y2 are expressed by the formulas below and CoO>0 [ppm]. Y1=(−0.13·B2+1.5·B−15.6A+850)/(0.0003·B+0.0098)−233 (2) Y2=(−0.40·B2+4.6·B−46.7A+2546)/(0.0003·B+0.0098)+1074 (3) The A and B in the above Y1 and Y2 are A=Fe2O3 (mol %) and B=ZnO (mol %).
摘要翻译：一种主要成分为Fe-2-O 3 3转换成的51〜54摩尔％的铁氧化物的Mn-Zn系铁氧体，14〜21摩尔％的锌 ZnO转化中的氧化物和其余的氧化锰，其中相对于主要成分的100重量％，CoO转化中的氧化钴的含量（α[ppm]）满足以下关系式。 <？in-line-formula description =“In-line Formulas”end =“lead”？>关系公式：Y1 <= alpha <= Y2（1）<？in-line-formula description =“In-line Formulas” end =“tail”？>注意，Y1和Y2由下式表示，CoO> 0 [ppm]。 <？in-line-formula description =“In-line Formulas”end =“lead”？> Y1 =（ - 0.13.B <2> + 1.5.B-15.6A + 850）/（0.0003 .B + 0.0098）-233（2）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end = 导线“> Y2 =（-0.40.B2-2 + 4.6.B-46.7A + 2546）/（0.0003B + 0.0098）+1074（3）<？在线公式描述 =“直线公式”end =“tail”？>上述Y1和Y2中的A和B是A = Fe 2 O 3（摩尔％）和 B = ZnO（mol％）。

5. 发明授权

US5738949A Inductive component having a core formed of high-permeability MnZn ferrites and encapsulated with insulating material 失效
标题翻译：具有由高磁导率MnZn铁氧体形成并由绝缘材料包封的芯体的感应元件
公开(公告)号：US5738949A
公开(公告)日：1998-04-14
申请号：US586565
申请日：1996-01-16
申请人： Dieter Schaner , Armin Schweiger , August Beer
发明人： Dieter Schaner , Armin Schweiger , August Beer
IPC分类号： C01G49/00 , C04B35/26 , C04B35/38 , H01F1/34 , H01F27/02 , B32B18/00
CPC分类号： C04B35/2658 , H01F1/344 , H01F27/022 , Y10T428/31507
摘要： An inductive component includes a core being formed of high-permeability MnZn ferrites having a secondary permeability maximum at a temperature
摘要翻译：电感元件包括一个由温度<0℃具有二次磁导率最大值的高磁导率MnZn铁氧体形成的磁芯。电绝缘材料封装了芯体。

6. 发明授权

US5698131A Paste for manufacturing ferrite and ferrite 失效
标题翻译：用于制造铁氧体和铁素体的粘贴
公开(公告)号：US5698131A
公开(公告)日：1997-12-16
申请号：US645103
申请日：1996-05-13
申请人： Shinji Saitou , Kazuyuki Okano
发明人： Shinji Saitou , Kazuyuki Okano
IPC分类号： C01G49/00 , C04B35/36 , C04B35/38 , C04B35/40
CPC分类号： C01G49/00 , Y10S428/928 , Y10T428/11
摘要： A paste for manufacturing ferrite is produced by dissolving the following materials: organometallic compound comprising a metal element Fe (A); organometallic compound comprising a metal element Me (Me herein denotes at least one element selected from the group consisting of Mn, Li, Mg, Ni, Zn, Y and Gd) (B); and at least one material selected from terpenoid carboxylic acid and resins containing the composition of the terpenoid carboxylic acid (C) in organic solvent (D). The paste permits providing a dense and homogeneous ferrite with a good property. Moreover, the use of such ferrite permits producing ferrite thin films. Furthermore, the ferrite with an excellent high-frequency property can be provided by coating and firing the paste of the present invention. The temperature properties of YIG thin film and Gd-substituted YIG thin film of the present invention are shown.
摘要翻译：通过将以下材料溶解，制备铁氧体用糊料：包含金属元素Fe（A）的有机金属化合物; （Me）表示选自Mn，Li，Mg，Ni，Zn，Y和Gd中的至少一种元素的金属元素Me（B）; 和选自萜类羧酸的至少一种材料和在有机溶剂（D）中含有萜类羧酸（C）的组合物的树脂。该糊剂允许提供具有良好性能的致密且均匀的铁素体。此外，使用这种铁氧体允许产生铁氧体薄膜。此外，可以通过涂覆和烧制本发明的糊料来提供具有优异的高频特性的铁氧体。示出了本发明的YIG薄膜和Gd取代的YIG薄膜的温度特性。

7. 发明授权

US5518642A Oxide magnetic material 失效
标题翻译：氧化物磁性材料
公开(公告)号：US5518642A
公开(公告)日：1996-05-21
申请号：US314546
申请日：1994-09-28
申请人： Osamu Inoue , Nobuya Matsutani , Koichi Kugimiya , Osamu Ishii , Yasuyuki Aono
发明人： Osamu Inoue , Nobuya Matsutani , Koichi Kugimiya , Osamu Ishii , Yasuyuki Aono
IPC分类号： C04B35/26 , C04B35/38
CPC分类号： C04B35/2658
摘要： An oxide magnetic material provided by the present invention contains, as main components, 55 to 59 mol % of Fe.sub.2 O.sub.3 ; 35 to 42 mol % of MnO; and 6 mol % or less of ZnO, and further contains, as sub-components, 0.05 to 0.3 wt % of CaO; and 0.005 to 0.05 wt % of SiO.sub.2. The other oxide magnetic material provided by the present invention contains, as main components, 61 to 67 mol % of Fe.sub.2 O.sub.3 ; 3 to 36 mol % of MnO; and 30 mol % or less of ZnO, and further contains, as sub-components, 0.05 to 0.5 wt % of CaO; and 0.005 to 0.2 wt % of SiO.sub.2. Such materials can further contain one or more kinds of oxides selected from the group consisting of ZrO.sub.2, HfO.sub.2, Ta.sub.2 O.sub.5, Cr.sub.2 O.sub.3, MoO.sub.3, WO.sub.3, Al.sub.2 O.sub.3, Ga.sub.2 O.sub.3, In.sub.2 O.sub.3, GeO.sub.2, SnO.sub.2, Sb.sub.2 O.sub.3 and Bi.sub.2 O.sub.3. Such magnetic materials of the present invention have the advantages of having an extremely low magnetic loss even when used in the high frequency band and having a minimum magnetic loss at a temperature sufficiently higher than room temperature. Moreover, a switching power supply having a switching frequency of 300 kHz to 5 MHz is provided by using such magnetic materials as a magnetic core.
摘要翻译：本发明提供的氧化物磁性材料含有55〜59摩尔％的Fe 2 O 3作为主要成分; 35〜42mol％的MnO; 和6mol％以下的ZnO，作为副成分，进一步含有0.05〜0.3重量％的CaO; 和0.005〜0.05重量％的SiO 2。本发明提供的其它氧化物磁性材料以Fe 2 O 3为主要成分为61〜67摩尔％。 3〜36摩尔％的MnO; 和30摩尔％以下的ZnO，作为副成分，进一步含有0.05〜0.5重量％的CaO; 和0.005〜0.2重量％的SiO 2。这些材料可以进一步含有选自ZrO 2，HfO 2，Ta 2 O 5，Cr 2 O 3，MoO 3，WO 3，Al 2 O 3，Ga 2 O 3，In 2 O 3，GeO 2，SnO 2，Sb 2 O 3和Bi 2 O 3中的一种以上的氧化物。本发明的这种磁性材料具有即使在高频带下使用也具有非常低的磁损耗并且在足够高于室温的温度下具有最小的磁损耗的优点。此外，通过使用这种磁性材料作为磁芯，提供具有300kHz至5MHz的开关频率的开关电源。

8. 发明授权

US5302306A Process for preparing polycrystalline ferrite materials and composites containing them 失效
标题翻译：制备多晶铁氧体材料和含有它们的复合材料的工艺
公开(公告)号：US5302306A
公开(公告)日：1994-04-12
申请号：US78843
申请日：1993-06-21
申请人： Shinji Nagata , Norio Sasaki , Mineo Yorizumi
发明人： Shinji Nagata , Norio Sasaki , Mineo Yorizumi
IPC分类号： C01G49/00 , C04B35/26 , C04B35/64 , C04B35/645 , C04B35/38
CPC分类号： C04B35/26 , C01G49/009 , C04B35/64 , C04B35/645 , C01P2002/32 , C01P2004/61
摘要： A ferrite composed of a polycrystalline ferrite which is obtained by sintering a ferrite starting powder by a discharge plasma technique is described. The ferrite starting powder is appropriately a coprecipitated ferrite powder. Prior to the sintering, the coprecipitated powder is preferably thermally treated or calcined at temperatures of not lower than 900.degree. C. A composite ferrite is also described, which is composed of the polycrystalline ferrite and a single crystal ferrite bonded together obtained by contacting the single crystal ferrite with the coprecipitated ferrite powder or embedding the single crystal ferrite in the powder, under which the polycrystalline ferrite powder is sintered by the discharge plasma sintering thereby bonding both ferrites together.
摘要翻译：描述了由通过放电等离子体技术烧结铁氧体起始粉末而获得的多晶铁素体组成的铁素体。铁素体起始粉末适当地是共沉淀的铁氧体粉末。在烧结之前，共沉淀的粉末优选在不低于900℃的温度下进行热处理或煅烧。还描述了复合铁氧体，其由多晶铁素体和通过使单一的使用共沉淀铁氧体粉末的晶体铁氧体或将单晶铁氧体嵌入粉末中，通过放电等离子体烧结将多晶铁氧体粉末烧结，从而将两个铁氧体结合在一起。

9. 发明授权

US4357251A Method of ceramic preparation 失效
标题翻译：陶瓷制备方法
公开(公告)号：US4357251A
公开(公告)日：1982-11-02
申请号：US849101
申请日：1977-11-07
申请人： David W. Johnson, Jr. , Man F. Yan
发明人： David W. Johnson, Jr. , Man F. Yan
IPC分类号： C04B35/26 , C04B35/64 , H01F1/36 , H01F3/08 , C04B35/30 , C04B35/38 , C04B35/40
CPC分类号： H01F3/08 , C04B35/26 , C04B35/64
摘要： Preparation of ceramic materials, including ferrites and garnets, through a processing sequence that includes a sintering step is facilitated by a flux, having a relatively low melting temperature and an approximately eutectic composition consisting of two or more of the final ceramic components. The flux permits the sintering step to proceed at temperatures lower than otherwise possible, and results in better control of the final ceramic composition and microstructure.
摘要翻译：通过包含烧结步骤的加工顺序制备陶瓷材料，包括铁氧体和石榴石，其熔融温度较低，由两种或更多种最终的陶瓷组分组成的近似共晶组合物。助熔剂允许烧结步骤在低于其他可能的温度下进行，并且导致对最终陶瓷组合物和微结构的更好控制。

10. 发明授权

US4331548A Ferrite single crystal and magnetic head containing the same 失效
标题翻译：铁氧体单晶和磁头含有相同的
公开(公告)号：US4331548A
公开(公告)日：1982-05-25
申请号：US263410
申请日：1981-05-14
申请人： Mineo Yorizumi , Yoshimi Makino
发明人： Mineo Yorizumi , Yoshimi Makino
IPC分类号： C10G49/00 , C04B35/26 , C30B13/00 , C30B29/22 , G11B5/133 , H01F1/34 , C04B35/38 , G11B5/14
CPC分类号： G11B5/133 , C04B35/2616 , C30B13/00 , C30B29/26
摘要： This invention relates to a ferrite single crystal represented by the formula:[(Li.sub.0.5 Fe.sub.0.5).sub.1-(x+y) Mn.sub.x Zn.sub.y ].sub.1-a Co.sub.a Fe.sub.2.0 O.sub.4where x is in the range from 0.1 to 0.4,y is in the range from 0.3 to 0.55 anda is in the range from 0 to 0.015.The ferrite single crystal is particularly suitable for use in a magnetic head structure.
摘要翻译：本发明涉及由以下结构式表示的铁氧体单晶：[（Li 0.5 Fe 0.5）1-（x + y）Mn x Zny] 1-a Co y Fe 2.0 O 4，其中x在0.1至0.4的范围内，y在范围为0.3〜0.55，a为0〜0.015。铁氧体单晶特别适用于磁头结构。

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