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公开(公告)号：US20240077363A1
公开(公告)日：2024-03-07
申请号：US18503686
申请日：2023-11-07
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takahiro TAGUCHI , Toru TAKAHASHI
Abstract: A thermoelectric element that contains a plate shaped thermoelectric material that exhibits an anomalous Nernst effect, the thermoelectric element having an average thickness of 10 μm to 100 μm, and an average cross-sectional area of 0.008 mm2 to 1 mm2 as measured in a cross section perpendicular to the longitudinal direction of the thermoelectric element.
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公开(公告)号：US20230212722A1
公开(公告)日：2023-07-06
申请号：US17822551
申请日：2022-08-26
Inventor： Kazuhiro HENMI , Tatsuya TOMITA , Akira OKUMURA , Katsutoshi UJI , Toru TAKAHASHI
IPC: C22C38/56 , C22C38/02 , C22C38/54 , C22C38/52 , C22C45/02 , H01F1/153 , H01F1/20 , H01F3/08 , H01F5/00 , B22F1/05
CPC classification number: C22C38/56 , C22C38/02 , C22C38/54 , C22C38/52 , C22C45/02 , H01F1/153 , H01F1/20 , H01F3/08 , H01F5/00 , B22F1/05 , B22F2301/35 , B22F2304/10
Abstract: An alloy particle contains: total content of Fe and Co: from 82.2 to 96.5 parts by mass; Co: 0 to 30.0 parts by mass; P: 0 to 4.5 parts by mass; B: more than 0 to 5.0 parts by mass; C: 0 to 3.0 parts by mass; Si: 0 to 6.7 parts by mass; Ni: more than 0 to 12.0 parts by mass; Cr: more than 0 to 4.2 parts by mass; total content of Mo, W, Zr, and Nb: 0 to 4.2 parts by mass; total content of P and Cr: 7.4 parts by mass or less; multiplication product of the parts by mass of Ni and Cr: 0.5 or more; and total content of Fe, Co, and Ni: 97.0 parts by mass or less. The alloy particle contains an amorphous phase, and a volume percentage of the amorphous phase is 70% or higher.
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公开(公告)号：US20180154434A1
公开(公告)日：2018-06-07
申请号：US15881299
申请日：2018-01-26
Inventor： Kazuhiro HENMI , Toru TAKAHASHI , Noriharu YODOSHI , Akihiro MAKINO
IPC: B22F1/00 , B22F9/08 , B22F5/00 , C21D6/00 , C22C45/02 , H01F3/08 , H01F41/02 , H01F17/04 , C22C38/16 , C22C38/10 , C22C38/02 , C22C38/00
CPC classification number: B22F1/0007 , B22F1/0059 , B22F5/00 , B22F9/082 , B22F2005/004 , B22F2301/35 , B22F2304/00 , B22F2998/10 , C21D6/001 , C21D6/007 , C21D6/008 , C21D2201/03 , C22C33/0278 , C22C38/00 , C22C38/002 , C22C38/02 , C22C38/105 , C22C38/16 , C22C45/02 , C22C2200/02 , C22C2202/02 , H01F1/15308 , H01F1/15333 , H01F1/15375 , H01F3/08 , H01F17/04 , H01F17/045 , H01F41/0246 , H01F2017/048 , H02K1/02 , B22F3/02 , B22F2003/248
Abstract: A soft magnetic powder according to the present disclosure comprises a particle which comprises a plurality of nanosized crystallites and an amorphous phase existing around the crystallites, wherein the crystallites have an average grain diameter of 30 nm or less, and the amorphous phase has an average thickness of 30 nm or less; and wherein when a minor axis of a cross section of the particle is determined as r, an average Fe concentration in the amorphous phase is lower than an average Fe concentration in the crystallites in a region where a depth from a surface of the particle is 0.2 r or more and 0.4 r or less.
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公开(公告)号：US20150099115A1
公开(公告)日：2015-04-09
申请号：US14572645
申请日：2014-12-16
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Eiichi MAEDA , Toru TAKAHASHI
IPC: H01F1/01 , H01F27/255
Abstract: A magnetic material composition includes: magnetic alloy particles such as Fe—Si—Cr or Fe—Si—Al based particles, with a passivation film formed on the surfaces of the particles; and a glass constituent that contains Si, B, and an alkali metal such as K, Na, and Li, and has a softening point of 650 to 800° C. The content of the glass constituent is 12 to 32 wt % with respect to the total of the magnetic alloy particles and the glass constituent. A glass phase formed from the glass constituent is formed between the magnetic alloy particles. A component body with a coil conductor buried therein is formed from the magnetic material composition. Thus, ingress of moisture and plating solutions between the magnetic alloy particles can be suppressed so that favorable insulation performance can be ensured without impairing any magnetic property.
Abstract translation: 磁性材料组合物包括：形成在颗粒表面上的钝化膜的诸如Fe-Si-Cr或Fe-Si-Al基颗粒的磁性合金颗粒; 以及含有Si，B以及碱金属如K，Na和Li的玻璃成分，软化点为650〜800℃。玻璃成分的含量相对于 磁合金颗粒和玻璃成分的总和。 在该磁性合金粒子之间形成由玻璃成分形成的玻璃相。 由磁性材料组合物形成埋设有线圈导体的部件体。 因此，可以抑制磁性合金颗粒之间的水分和电镀液的侵入，从而可以确保良好的绝缘性能而不损害任何磁性。
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Patent Agency Ranking
公开(公告)号：US20240068881A1
公开(公告)日：2024-02-29
申请号：US18504562
申请日：2023-11-08
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Eiichi MAEDA , Masashi HATTORI , Mitsuru ODAHARA , Toru TAKAHASHI , Kojiro KOMAGAKI , Takahiro TAGUCHI
IPC: G01K7/04
CPC classification number: G01K7/04
Abstract: A thermoelectric conversion device that includes an element body including a plurality of stacked; and a meandering wire inside the element body and that has a stacked structure. The meandering wire includes a thermoelectric material that has an anomalous Nernst effect, and a thermal conductivity of the plurality of stacked substrates is lower than that of the thermoelectric material. A thermoelectric conversion device that includes a winding core; and a winding wire wound around the winding core. The winding wire consists only of a thermoelectric material that has an anomalous Nernst effect. A thermoelectric conversion device that includes a plurality of substrates and meandering wires on main surfaces of the respective substrates. The meandering wires include a thermoelectric material that has an anomalous Nernst effect, and the substrates adjacent to each other are arranged at an angle that is larger than 0 degrees and smaller than 180 degrees.
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6.发明申请公开(公告)号：US20170320138A1
公开(公告)日：2017-11-09
申请号：US15661583
申请日：2017-07-27
Inventor： Toru TAKAHASHI , Akihiro MAKINO , Noriharu YODOSHI
IPC: B22F9/08 , B22F3/02 , H01F3/08 , H01F41/02 , B22F3/24 , C22C38/02 , C22C38/16 , C22C45/02 , H02K1/02 , C22C38/00
CPC classification number: B22F9/082 , B22F1/00 , B22F3/00 , B22F3/02 , B22F3/24 , B22F9/08 , B22F2003/248 , B22F2009/0824 , B22F2009/0848 , B22F2301/35 , C22C38/00 , C22C38/002 , C22C38/02 , C22C38/16 , C22C45/02 , C22C2200/02 , C22C2202/02 , H01F1/14 , H01F1/22 , H01F3/08 , H01F41/0246 , H02K1/02
Abstract: A magnetic powder is represented by general formula FeaSibBcPdCue. 71.0≦a≦81.0, 0.14≦b/c≦5, 0≦d≦14, 0
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公开(公告)号：US20180147625A1
公开(公告)日：2018-05-31
申请号：US15882476
申请日：2018-01-29
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Toru TAKAHASHI , Kazuhiro HENMI , Noriharu YODOSHI , Akihiro MAKINO
IPC: B22F1/00 , B22F9/08 , B22F5/00 , C22C38/16 , C22C38/10 , C22C38/08 , C22C38/02 , C22C38/00 , H01F1/147 , H01F27/255 , H01F27/28 , H01F1/153
CPC classification number: B22F1/0011 , B22F5/00 , B22F9/082 , B22F2005/004 , B22F2009/0824 , B22F2301/35 , B22F2304/10 , B22F2998/10 , B22F2999/00 , C22C38/002 , C22C38/02 , C22C38/08 , C22C38/10 , C22C38/16 , C22C45/02 , C22C2200/02 , C22C2202/02 , H01F1/14741 , H01F1/15308 , H01F1/15375 , H01F17/04 , H01F27/255 , H01F27/28 , H02K1/02 , B22F2201/013 , B22F2201/02 , B22F2201/11 , B22F1/0059 , B22F3/02 , B22F5/106
Abstract: A soft magnetic powder according to the present disclosure comprises a particle having no hollow part as a main component, wherein a number of hollow particle present in a region of 2.5 mm square is 40 or less in a cross section of a molded body obtained by powder-compacting and molding the soft magnetic powder so as to have a volume filling rate of 75% or more and 77% or less (i.e., from 75% to 77%).
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8.发明申请公开(公告)号：US20180108465A1
公开(公告)日：2018-04-19
申请号：US15844929
申请日：2017-12-18
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Toru TAKAHASHI
IPC: H01F1/147 , B22F9/08 , B22F1/00 , B22F9/00 , C22C45/02 , C22C38/32 , C22C38/02 , C22C38/00 , H01F41/02 , H01F27/255 , H01F27/28
CPC classification number: H01F1/14766 , B22F1/0007 , B22F1/0044 , B22F1/0059 , B22F9/008 , B22F9/082 , B22F2009/0824 , B22F2009/0828 , B22F2301/35 , B22F2304/10 , B22F2998/10 , B22F2999/00 , C22C33/0278 , C22C38/00 , C22C38/002 , C22C38/02 , C22C38/32 , C22C45/02 , C22C2202/02 , H01F1/15333 , H01F1/15375 , H01F27/255 , H01F27/28 , H01F41/02 , H01F41/0246 , B22F2201/10 , B22F3/02 , B22F3/10 , B22F2003/248
Abstract: A magnetic powder contains at least the first alloy powder and the second alloy powder in which those composition are different. The second alloy powder has a smaller median diameter than the first alloy powder and contains Cr of 0.3-14 at %. The first alloy powder has a Cr content of 0.3 at % or less. With respect to the total sum of the first alloy powder and the second alloy powder, a content of the second alloy powder is 20-50 vol % and the ratio of the median diameter of the first alloy powder to the second alloy powder is 4-20. The first alloy powder comprises either an amorphous phase or a crystalline phase having an average crystallite size of 50 nm or smaller. Thereby, a magnetic powder having low magnetic loss and good corrosion resistance without damaging insulation resistance and saturation magnetic flux density can be realized.
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9.发明申请公开(公告)号：US20170321308A1
公开(公告)日：2017-11-09
申请号：US15661520
申请日：2017-07-27
Inventor： Toru TAKAHASHI , Kazuhiro HENMI , Akihiro MAKINO , Noriharu YODOSHI
IPC: C22C38/02 , H01F41/02 , H01F3/08 , C22C38/00 , B22F9/08 , B22F3/02 , C22C45/02 , H02K1/02 , B22F3/24
CPC classification number: C22C38/02 , B22F1/00 , B22F3/00 , B22F3/02 , B22F3/24 , B22F9/08 , B22F9/082 , B22F2003/248 , B22F2009/0824 , B22F2009/0848 , B22F2301/35 , C22C38/00 , C22C38/002 , C22C45/02 , C22C2200/02 , C22C2202/02 , H01F1/153 , H01F1/22 , H01F3/08 , H01F41/0246 , H02K1/02
Abstract: A magnetic powder is represented by general formula Fea(SibBcPd)100-a, and is produced with a gas atomization method. When the value of a and the value of b in the general formula is represented (a, b), (a, b) is within a predetermined region V1. Similarly, (a, c) and (a, d) are within a predetermined region, respectively. Whereby, it is possible to obtain an alloy magnetic powder which has high saturation magnetic flux density, low magnetic loss, and is spherical and easy to handle; and a magnetic core, a variety of coil components, and a motor can be realized by using the magnetic material.
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