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1. 发明申请

US20180308609A1 COIL COMPONENT 审中-公开
公开(公告)号：US20180308609A1
公开(公告)日：2018-10-25
申请号：US15828150
申请日：2017-11-30
申请人： Murata Manufacturing Co., Ltd.
发明人： Gota SHINOHARA , Takuya ISHIDA
IPC分类号： H01F1/147 , H01F17/04 , H01F27/28 , H01F27/29 , H01F27/255 , H01F41/10 , H01F41/04 , B22F1/02 , H01F17/00 , H01F1/33
CPC分类号： H01F1/14733 , B22F1/02 , H01F1/33 , H01F17/0013 , H01F17/04 , H01F27/255 , H01F27/2852 , H01F27/292 , H01F41/042 , H01F41/10 , H01F2017/048
摘要： A coil component includes a magnetic portion that includes metal particles and a resin material, a coil conductor embedded in the magnetic portion and having a core portion, and outer electrodes electrically connected to the coil conductor. The magnetic portion includes a magnetic outer coating and a magnetic base having a protrusion portion. The coil conductor is disposed on the magnetic base such that the protrusion portion is located in the core portion. The magnetic outer coating is disposed so as to cover the coil conductor, and the bottom surface of the magnetic base includes a recessed portion in an area opposite to the protrusion portion.

2. 发明授权

US09892834B2 Magnetic material and coil component employing same 有权
公开(公告)号：US09892834B2
公开(公告)日：2018-02-13
申请号：US14141301
申请日：2013-12-26
申请人： TAIYO YUDEN CO., LTD.
发明人： Hideki Ogawa , Atsushi Tanada
IPC分类号： H01F27/24 , H01F17/04 , H01F5/00 , H01F1/40 , B22F1/02 , B22F3/10 , B22F3/24 , C22C38/02 , C22C38/06 , C22C38/34 , H01F1/26 , H01F1/33 , H01F1/01 , H01F27/28 , H01F1/24
CPC分类号： H01F1/408 , B22F1/02 , B22F3/1007 , B22F3/24 , C22C38/02 , C22C38/06 , C22C38/34 , H01F1/015 , H01F1/24 , H01F1/26 , H01F1/33 , H01F27/28
摘要： A coil component having a magnetic material and a coil formed on a surface of or inside the magnetic material. The magnetic material is constituted by a grain compact formed by compacting multiple metal grains that in turn are constituted by an Fe—Si—M soft magnetic alloy (where M is a metal element that oxidizes more easily than Fe), wherein individual metal grains have oxide film formed at least partially around them; the grain compact is formed primarily via bonding between oxide films formed around adjacent metal grains; and the apparent density of the grain compact 1 is 5.2 g/cm3 or more, or preferably 5.2 to 7.0 g/cm3.

3. 发明申请

US20170271063A1 METAL POWDER CORE COMPRISING COPPER POWDER, COIL COMPONENT, AND FABRICATION METHOD FOR METAL POWDER CORE 审中-公开
公开(公告)号：US20170271063A1
公开(公告)日：2017-09-21
申请号：US15616310
申请日：2017-06-07
申请人： HITACHI METALS, LTD.
发明人： Tetsuro KATO , Shin NOGUCHI , Kazunori NISHIMURA
IPC分类号： H01F1/153 , B22F1/00 , B22F1/02 , B22F3/02 , B22F9/00 , B22F9/04 , C22C33/02 , C22C45/02 , H01F1/22 , H01F1/24 , H01F1/28 , H01F1/33 , H01F27/255 , H01F27/28 , H01F3/08 , H01F41/02
CPC分类号： H01F1/15308 , B22F1/0059 , B22F1/02 , B22F3/02 , B22F9/002 , B22F9/04 , C22C33/02 , C22C33/0278 , C22C45/02 , H01F1/15333 , H01F1/1535 , H01F1/22 , H01F1/24 , H01F1/28 , H01F1/33 , H01F3/08 , H01F27/255 , H01F27/28 , H01F41/0246
摘要： In a metal powder core constructed from soft magnetic material powder and a coil component employing this, a configuration suitable for reduction of a core loss is provided. The metal powder core constructed from soft magnetic material powder is characterized in that Cu is dispersed among the soft magnetic material powder. It is characterized in that, preferably, the soft magnetic material powder is pulverized powder of soft magnetic alloy ribbon and that Cu is dispersed among the pulverized powder of soft magnetic alloy ribbon. Further, it is characterized in that, preferably, the soft magnetic alloy ribbon is a Fe-based nano crystal alloy ribbon or a Fe-based alloy ribbon showing a Fe-based nano crystalline structure and that the pulverized powder has a nano crystalline structure.

4. 发明授权

US09704627B2 Metal powder core comprising copper powder, coil component, and fabrication method for metal powder core 有权
公开(公告)号：US09704627B2
公开(公告)日：2017-07-11
申请号：US14372974
申请日：2013-01-15
申请人： HITACHI METALS, LTD.
发明人： Tetsuro Kato , Shin Noguchi , Kazunori Nishimura
IPC分类号： C22C33/02 , B32B5/16 , H01F1/153 , H01F1/28 , B22F1/02 , C22C45/02 , B22F9/00 , B22F9/04 , H01F3/08 , H01F41/02 , B22F1/00 , B22F3/02 , H01F1/22 , H01F1/24 , H01F1/33 , H01F27/255 , H01F27/28
CPC分类号： H01F1/15308 , B22F1/0059 , B22F1/02 , B22F3/02 , B22F9/002 , B22F9/04 , C22C33/02 , C22C33/0278 , C22C45/02 , H01F1/15333 , H01F1/1535 , H01F1/22 , H01F1/24 , H01F1/28 , H01F1/33 , H01F3/08 , H01F27/255 , H01F27/28 , H01F41/0246
摘要： In a metal powder core constructed from soft magnetic material powder and a coil component employing this, a configuration suitable for reduction of a core loss is provided. The metal powder core constructed from soft magnetic material powder is characterized in that Cu is dispersed among the soft magnetic material powder. It is characterized in that, preferably, the soft magnetic material powder is pulverized powder of soft magnetic alloy ribbon and that Cu is dispersed among the pulverized powder of soft magnetic alloy ribbon. Further, it is characterized in that, preferably, the soft magnetic alloy ribbon is a Fe-based nano crystal alloy ribbon or a Fe-based alloy ribbon showing a Fe-based nano crystalline structure and that the pulverized powder has a nano crystalline structure.

5. 发明授权

US09472341B2 Method for manufacturing magnetic grain compact 有权
标题翻译：磁性颗粒制造方法
公开(公告)号：US09472341B2
公开(公告)日：2016-10-18
申请号：US15040534
申请日：2016-02-10
申请人： TAIYO YUDEN CO., LTD.
发明人： Hitoshi Matsuura , Kenji Otake
IPC分类号： H01F27/24 , H01F41/02 , H01F1/147 , H01F1/24 , H01F1/33 , C22C38/34 , H01F5/00 , H01F27/255
CPC分类号： H01F41/0246 , B22F2998/00 , B22F2998/10 , C22C38/34 , C22C2202/02 , H01F1/14783 , H01F1/14791 , H01F1/24 , H01F1/33 , H01F5/00 , H01F27/24 , H01F27/255 , Y10T428/249956 , B22F9/082 , B22F3/02 , B22F3/10 , B22F1/02 , C22C33/0278
摘要： A method for manufacturing a magnetic grain compact, includes: providing multiple metal grains constituted by soft magnetic alloy containing Fe, Si, and a metal element M that oxidizes more easily than Fe; compacting the metal grains; and forming oxide film formed on a surface of the metal grains, and forming first bonding parts where adjacent metal grains are directly contacted and bonded together, and second bonding parts where adjacent metal grains are bonded together via the oxide film formed around the entire surface of said adjacent metal grains other than the first bonding parts, by applying heat treatment to the compacted metal grains, thereby obtaining a magnetic grain compact.
摘要翻译：一种制造磁性颗粒压块的方法包括：提供由含有Fe，Si和比Fe更容易氧化的金属元素M的软磁性合金构成的多个金属颗粒; 压实金属颗粒; 以及形成在所述金属颗粒的表面上的氧化膜，并且形成相邻金属颗粒直接接触并接合在一起的第一接合部分，以及相邻金属颗粒通过形成在所述金属颗粒的整个表面周围的氧化膜通过对压实的金属颗粒进行热处理，除了第一粘合部分之外的所述相邻金属颗粒，从而获得磁性颗粒成形体。

6. 发明授权

US09431159B2 Iron cobalt ternary alloy nanoparticles with silica shells and metal silicate interface 有权
标题翻译：铁钴三元合金纳米粒子与二氧化硅壳和金属硅酸盐界面
公开(公告)号：US09431159B2
公开(公告)日：2016-08-30
申请号：US14521063
申请日：2014-10-22
申请人： TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
发明人： Michael Paul Rowe , Ryan Daniel Desautels
IPC分类号： H01F1/33 , H01F41/00 , H01F1/00
CPC分类号： H01F1/33 , H01F1/0054 , H01F41/005
摘要： Superparamagnetic core-shell nanoparticles having a core of an iron cobalt ternary alloy, a shell of a silicon oxide on the core and a metal silicate interface layer between the core and the shell layer are provided. Methods to prepare the nanoparticles are also provided.
摘要翻译：提供了具有铁钴三元合金核心，芯上的氧化硅壳体和芯层与壳层之间的金属硅酸盐界面层的超顺磁核 - 壳纳米颗粒。还提供了制备纳米颗粒的方法。

7. 发明授权

US09396873B2 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：US09396873B2
公开(公告)日：2016-07-19
申请号：US13132892
申请日：2010-04-28
申请人： Yasuo Oshima , Susumu Handa , Kota Akaiwa
发明人： Yasuo Oshima , Susumu Handa , Kota Akaiwa
IPC分类号： H01F1/24 , B22F1/02 , B22F3/16 , H01F41/02 , H01F1/26 , H01F1/33
CPC分类号： H01F41/0246 , B22F2998/10 , C22C2202/02 , H01F1/24 , H01F1/26 , H01F1/33 , Y10T29/49826 , B22F9/082 , C22C1/05 , B22F1/0059 , B22F3/02 , B22F3/10
摘要： Provided is a dust core and a method for manufacturing a thereof, having an effect that the soft magnetic powder is prevented from sintering and bonding together upon heating, the hysteresis loss can be effectively reduced, and the DC B-H characteristics is excellent. In a first mixing process, a soft magnetic powder composed mainly of iron and an inorganic insulating powder of 0.4 wt %-1.5 wt % are mixed by a mixer. A mixture obtained in the first mixing process is heated in a non-oxidizing atmosphere at 1000° C. or more and below a sintering temperature of the soft magnetic powder. In a binder addition process, a silane coupling agent of 0.1-0.5 wt % is added. A binder, e.g. a silicone resin of 0.5-2.0 wt % is added to the soft magnetic alloy powder to which the inorganic insulating powder is attached by the silane coupling agent, and the soft magnetic alloy powders are bonded to each other so as to be granulated. Then, the mixture is added with a lubricant resin and compression-molded so as to form a green compact. In an annealing process, the mold is annealed in a non-oxidizing atmosphere.
摘要翻译：提供一种防尘芯及其制造方法，具有防止软磁性粉末在加热时烧结和结合在一起的作用，可以有效降低滞后损耗，并且DCB-H特性优异。在第一混合过程中，主要由铁和0.4wt％-1.5wt％的无机绝缘粉末组成的软磁粉末通过混合器混合。在第一混合过程中获得的混合物在非氧化性气氛中在1000℃以上且低于软磁粉末的烧结温度下加热。在粘合剂添加方法中，加入0.1-0.5重量％的硅烷偶联剂。粘合剂，例如将通过硅烷偶联剂将无机绝缘粉末附着的软磁性合金粉末中添加0.5〜2.0重量％的有机硅树脂，并将软磁性合金粉末相互结合以造粒。然后，将混合物加入润滑剂树脂并进行压缩模塑以形成生坯。在退火过程中，模具在非氧化气氛中进行退火。

8. 发明授权

US09269481B2 Iron powder coated with Mg-containing oxide film 有权
标题翻译：铁粉末涂有含镁氧化膜
公开(公告)号：US09269481B2
公开(公告)日：2016-02-23
申请号：US11814603
申请日：2005-11-02
申请人： Muneaki Watanabe , Ryoji Nakayama , Gakuji Uozumi
发明人： Muneaki Watanabe , Ryoji Nakayama , Gakuji Uozumi
IPC分类号： B32B5/16 , B32B15/00 , H01F1/33 , B22F1/02 , C22C33/02 , H01F1/147 , H01F1/24 , H02K1/02
CPC分类号： H01F1/33 , B22F1/02 , B22F2998/00 , C22C33/0207 , H01F1/14766 , H01F1/24 , H02K1/02 , Y10T428/2991 , Y10T428/2993 , Y10T428/32 , B22F2207/07
摘要： Oxide-coated Fe powder for producing various electromagnetic circuit components requiring high resistivity is provided. The oxide-coated Fe powder is a Mg-containing oxide film-coated iron powder coated with an Mg—Fe—O ternary-based deposition film at least containing (Mg, Fe)O. The (Mg,Fe)O is a crystalline MgO-dissolving wustite. The Mg—Fe—O ternary-based oxide deposition film has a sulfur-enriched layer containing a higher concentration of sulfur than that of central portion of the iron powder, fine crystalline texture having a grain size of 200 nm or less, and the outermost surface is substantially composed of MgO. A composite soft magnetic material using the Mg-containing oxide film-coated iron powder is also provided.
摘要翻译：提供了用于生产需要高电阻率的各种电磁电路部件的氧化物涂覆的Fe粉末。氧化物被覆的Fe粉末是含有至少含有（Mg，Fe）O的Mg-Fe-O三元系沉积膜的含Mg氧化物膜被覆铁粉末。（Mg，Fe）O是结晶的MgO溶解的方钨矿。 Mg-Fe-O三元基氧化物沉积膜具有含有比铁粉中心部分更高浓度的硫的富集层，具有200nm以下的粒径的微细晶体结构，表面基本上由MgO构成。还提供了使用含Mg氧化物膜的铁粉的复合软磁性材料。

9. 发明申请

US20150364235A1 SOFT MAGNETIC MEMBER, REACTOR, POWDER FOR DUST CORE, AND METHOD OF PRODUCING DUST CORE 有权
标题翻译：软磁性成员，反应器，粉尘用粉末及其制造方法
公开(公告)号：US20150364235A1
公开(公告)日：2015-12-17
申请号：US14737876
申请日：2015-06-12
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Daisuke OKAMOTO , Kiyotaka ONODERA , Shinjiro SAIGUSA , Kohei ISHII , Masashi OHTSUBO , Junghwan HWANG , Masaaki TANI , Takeshi HATTORI
IPC分类号： H01F1/24 , B22F3/12 , H01F27/255 , H01F1/147 , H01F41/02 , H01F3/08
CPC分类号： H01F1/24 , B22F1/02 , B22F2998/10 , C22C33/0257 , C22C33/0264 , H01F1/14791 , H01F1/33 , H01F3/08 , H01F27/255 , H01F41/0246 , B22F2009/0828 , B22F9/08 , B22F9/04 , B22F3/02 , B22F3/10
摘要： A soft magnetic member is formed such that, when a differential relative permeability in an applied magnetic field of 100 A/m is represented by a first differential relative permeability μ′L, and when a differential relative permeability in an applied magnetic field of 40 kA/m is represented by a second differential relative permeability μ′H, a ratio of the first differential relative permeability μ′L to the second differential relative permeability μ′H satisfies a relationship of μ′L/μ′H≦10, and a magnetic flux density in an applied magnetic field of 60 kA/m is 1.15 T or higher.
摘要翻译：形成软磁性构件，使得当施加的100A / m的磁场中的微分相对磁导率由第一差分相对磁导率μ'L表示时，并且当施加的磁场中的差分相对磁导率为40kA时 / m由第二微分相对磁导率μ'H表示，第一微分相对磁导率μ'L与第二微分相对磁导率μ'H的比率满足μ'L/μ'H＆nlE; 10的关系，a 60kA / m的施加磁场中的磁通密度为1.15T以上。

10. 发明申请

US20150255199A1 IRON COBALT TERNARY ALLOY NANOPARTICLES WITH SILICA SHELLS AND METAL SILICATE INTERFACE 有权
标题翻译：带有二氧化硅壳和金属硅酸盐界面的铁钴合金三元合金
公开(公告)号：US20150255199A1
公开(公告)日：2015-09-10
申请号：US14521063
申请日：2014-10-22
申请人： TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
发明人： Michael Paul Rowe , Ryan Daniel Desautels
IPC分类号： H01F1/33 , H01F41/00
CPC分类号： H01F1/33 , H01F1/0054 , H01F41/005
摘要： Superparamagnetic core-shell nanoparticles having a core of an iron cobalt ternary alloy, a shell of a silicon oxide on the core and a metal silicate interface layer between the core and the shell layer are provided. Methods to prepare the nanoparticles are also provided.
摘要翻译：提供了具有铁钴三元合金核心，芯上的氧化硅壳体和芯层与壳层之间的金属硅酸盐界面层的超顺磁核 - 壳纳米颗粒。还提供了制备纳米颗粒的方法。

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