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91.发明公开公开(公告)号：US20240191333A1
公开(公告)日：2024-06-13
申请号：US18410257
申请日：2024-01-11
Applicant: PROTERIAL, LTD.
Inventor： Hajime ITAGAKI , Morifumi KUROKI , Makoto SASAKI , Shin NAKAJIMA
IPC: C22C45/00 , B23K26/362 , C21D8/12 , C22C45/02 , H01F1/153 , H01F27/25 , H01F27/255 , H01F30/10 , H01F30/12
CPC classification number: C22C45/008 , B23K26/362 , C21D8/1294 , C22C45/02 , H01F1/15308 , H01F27/25 , H01F27/255 , H01F30/10 , H01F30/12
Abstract: An Fe-based amorphous alloy ribbon reduced in iron loss, less deformed, and highly productive in a condition of a magnetic flux density of 1.45 T is provided. One aspect of the present disclosure provides an Fe-based amorphous alloy ribbon having first and second surfaces, and is provided with continuous linear laser irradiation marks on at least the first surface. Each linear laser irradiation mark is formed along a direction orthogonal to a casting direction of the Fe-based amorphous alloy ribbon, and has unevenness on its surface. When the unevenness is evaluated in the casting direction, a height difference HL×width WA calculated from the height difference HL between a highest point and a lowest point in a thickness direction of the Fe-based amorphous alloy ribbon and the width WA which is a length of the linear irradiation mark on the first surface is 6.0 to 180 μm2.
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92.发明授权公开(公告)号：US11961649B2
公开(公告)日：2024-04-16
申请号：US17674966
申请日：2022-02-18
Applicant: Seiko Epson Corporation
Inventor： Atsushi Nakamura
IPC: H01F27/25 , B23K26/364 , H01F1/14 , H01F1/153 , H01F1/16 , H01F3/04 , H01F41/00 , H01F41/02 , B23K101/36
CPC classification number: H01F27/25 , B23K26/364 , H01F1/14 , H01F1/153 , H01F1/15341 , H01F1/16 , H01F3/04 , H01F41/00 , H01F41/02 , H01F41/0226 , B23K2101/36 , H01F1/15308 , Y10T428/12361 , Y10T428/12389 , Y10T428/12396 , Y10T428/12431 , Y10T428/12951 , Y10T428/12979 , Y10T428/12993 , Y10T428/24942 , Y10T428/24967 , Y10T428/26 , Y10T428/266
Abstract: An amorphous metal ribbon includes a plurality of laser irradiation mark rows each including a plurality of laser irradiation marks arranged in a row, in which when a distance between the laser irradiation mark rows that are adjacent to each other is set as d1, a distance between the laser irradiation marks in the laser irradiation mark row is set as d2, a diameter of the laser irradiation mark is set as d3, and a number density D of the laser irradiation marks is set as (1/d1)×(1/d2), the number density D of the laser irradiation marks is 0.05 pieces/mm2 or more and 0.50 pieces/mm2 or less, and when an area occupancy rate A of the laser irradiation marks is set as D×(d3/2)2×π×100, the area occupancy rate A of the laser irradiation marks is 0.0035% or more and 0.040% or less.
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93.发明授权公开(公告)号：US11948712B2
公开(公告)日：2024-04-02
申请号：US17194865
申请日：2021-03-08
Applicant: Seiko Epson Corporation
Inventor： Toshiki Sano
IPC: H01F1/20 , B22F1/05 , B22F1/14 , B22F1/142 , B22F9/00 , B22F9/08 , C22C38/02 , C22C38/12 , C22C38/20 , H01F1/153
CPC classification number: H01F1/15308 , B22F1/05 , B22F1/14 , B22F1/142 , B22F9/007 , B22F9/082 , C22C38/02 , C22C38/12 , C22C38/20 , H01F1/153 , H01F1/20 , B22F2304/10 , C22C2200/04 , B22F2999/00 , B22F1/142 , B22F1/08 , B22F2201/50 , B22F2201/03 , B22F2201/10 , B22F2201/01 , B22F9/007
Abstract: A magnetic powder contains a soft magnetic material represented by the following composition formula, in which an average particle size is 2 μm or more and 10 μm or less, and at least a surface layer is nanocrystallized,
FeaCubNbcSidBe
where, a, b, c, d, and e each indicate atomic percentage, 71.0 at %≤a≤76.0 at %, 0.5 at %≤b≤1.5 at %, 2.0 at %≤c≤4.0 at %, 11.0 at %≤d≤16.0 at %, and 8.0 at %≤e≤13.0 at %.-
公开(公告)号：US11887761B2
公开(公告)日：2024-01-30
申请号：US17672373
申请日：2022-02-15
Applicant: TDK CORPORATION
Inventor： Hironobu Kumaoka , Kazuhiro Yoshidome , Hiroyuki Matsumoto , Akito Hasegawa
CPC classification number: H01F1/15308 , C22C45/02 , C22C45/04 , H01F1/15333 , C22C2202/02
Abstract: A soft magnetic alloy including an internal area having a soft magnetic type alloy composition including Fe and P (phosphorous), and
a P concentrated area existing closer to a surface side than the internal area and having a higher P concentration than in the internal area.-
公开(公告)号：US11851738B2
公开(公告)日：2023-12-26
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 , H01F3/08 , H01F41/02 , C22C38/00 , C22C45/02 , H01F17/04 , H01F1/153 , C22C33/02 , B22F1/10 , B22F1/08 , C21D6/00 , C22C38/02 , C22C38/10 , C22C38/16 , H02K1/02
CPC classification number: C22C38/00 , B22F1/08 , B22F1/10 , B22F5/00 , B22F9/082 , C21D6/001 , C21D6/007 , C21D6/008 , C22C33/0278 , C22C38/002 , C22C38/02 , C22C38/105 , C22C38/16 , C22C45/02 , H01F1/15308 , H01F1/15333 , H01F1/15375 , H01F3/08 , H01F17/04 , H01F17/045 , H01F41/0246 , B22F2005/004 , B22F2301/35 , B22F2304/00 , B22F2998/10 , C21D2201/03 , C22C2200/02 , C22C2202/02 , H01F2017/048 , H02K1/02 , B22F2998/10 , 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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Patent Agency Ranking
公开(公告)号：US11842833B2
公开(公告)日：2023-12-12
申请号：US17039086
申请日：2020-09-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takuya Ishida , Gota Shinohara
CPC classification number: H01F1/15333 , H01F1/14766 , H01F1/15308 , H01F17/04 , H01F17/045 , H01F27/255 , H01F27/2852 , H01F27/29 , H01F27/292 , H01F41/02 , H01F41/0246 , H01F2017/048
Abstract: A coil component includes a magnetic portion that includes metal particles and a resin material, a coil conductor embedded in the magnetic portion, and outer electrodes electrically connected to the coil conductor. The average particle diameter of the metal particles in the magnetic portion is 1 μm or more and 5 μm or less, and the CV value of the metal particles is 50% or more and 90% or less.
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公开(公告)号：US11783974B2
公开(公告)日：2023-10-10
申请号：US15881227
申请日：2018-01-26
Applicant: TDK CORPORATION
Inventor： Akihiro Harada , Hiroyuki Matsumoto , Kenji Horino , Kazuhiro Yoshidome , Akito Hasegawa , Hajime Amano , Kensuke Ara , Seigo Tokoro
IPC: H01F1/153 , C22C33/00 , C22C38/08 , C22C38/00 , C22C38/06 , H01F1/147 , C22C33/02 , C22C38/10 , C22C45/02 , C22C38/18 , C22C38/04 , C22C38/14 , C22C38/60 , C22C38/12 , C22C38/32 , B22F1/07 , H01F27/25 , H01F41/02 , B22F9/00 , C22C45/00
CPC classification number: H01F1/15333 , B22F1/07 , C22C33/003 , C22C33/02 , C22C38/002 , C22C38/005 , C22C38/007 , C22C38/008 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/10 , C22C38/12 , C22C38/14 , C22C38/18 , C22C38/32 , C22C38/60 , C22C45/02 , H01F1/14708 , H01F1/15308 , H01F1/15325 , H01F1/15341 , H01F27/25 , H01F41/0226 , B22F9/002 , C22C45/008 , C22C2202/02
Abstract: A soft magnetic alloy comprising a main component having a compositional formula of ((Fe(1−(α+β))X1αX2β)(1−(a+b+c))MaBbCrc)1−dCd, and a sub component including P, S and Ti, wherein X1 is selected from the group Co and Ni, X2 is selected from the group Al, Mn, Ag, Zn, Sn, As, Sb, Bi and rare earth elements, “M” is selected from the group Nb, Hf, Zr, Ta, Mo, W and V, 0.030≤a≤0.14, 0.005≤b≤0.20, 0
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公开(公告)号：US20230178275A1
公开(公告)日：2023-06-08
申请号：US17992378
申请日：2022-11-22
Applicant: TDK CORPORATION
Inventor： Masahito KOEDA , Satoko MORI , Kazuhiro YOSHIDOME , Hiroyuki MATSUMOTO
CPC classification number: H01F1/1475 , H01F3/08 , H01F1/15383 , H01F1/15308
Abstract: A soft magnetic metal powder including a soft magnetic metal particle. The soft magnetic metal particle includes a metal particle and an oxide part covering the metal particle. An interface between the metal particle and the oxide part has roughness. A maximum height Rz of roughness at the interface between the metal particle and the oxide part is within a range of 1.0 nm or more and 50.0 nm or less.
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公开(公告)号：US20190214171A1
公开(公告)日：2019-07-11
申请号：US16221977
申请日：2018-12-17
Applicant: TDK CORPORATION
Inventor： Kazuhiro YOSHIDOME , Hiroyuki MATSUMOTO , Kenji HORINO , Akito HASEGAWA , Hajime AMANO , Kensuke ARA , Akihiro HARADA
CPC classification number: H01F1/26 , H01F1/14708 , H01F1/14766 , H01F1/15308 , H01F1/15333 , H01F1/38 , H01F41/0226 , H01F41/0246
Abstract: A soft magnetic alloy which includes nanocrystal parts and amorphous parts is provided. The nanocrystal parts include αFe(—Si) as a main component, and include at least one of elements selected from B, P, C, Ti, Zr, Hf, Nb, Ta, Mo, V, W, Cr, Al, Mn, Zn, and Cu as a sub-component. When a total content ratio of the sub-component in the nanocrystal parts is set as α (at %), and a total content ratio of the sub-components of the nanocrystal parts included in the amorphous parts is set as β (at %), 0.01≤(α/β)≤0.40, and a crystallinity degree is 5% or more and 70% or less.
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100.发明申请公开(公告)号：US20180322991A1
公开(公告)日：2018-11-08
申请号：US16035302
申请日：2018-07-13
Applicant: Alps Electric Co., Ltd. , Akita Prefectural University
Inventor： Hisato KOSHIBA , Takao MIZUSHIMA , Takafumi HIBINO , Teruo BITOH
CPC classification number: H01F1/15308 , B22F1/00 , C22C38/00 , C22C45/02
Abstract: Provided is an Fe-based alloy composition capable of forming an amorphous soft magnetic material which contains no P and which has a glass transition temperature Tg, the Fe-based alloy composition having a composition represented by the formula (Fe1−aTa)100at%−(x+b+c+d)MxBbCcSid, where T is an arbitrary added element such as Ni and M is an arbitrary added element such as Cr, the formula satisfying the following conditions: 0≤a≤0.3, 11.0 at %≤b≤18.20 at %, 6.00 at %≤c≤17 at %, 0 at %≤d≤10 at %, and 0 at %≤x≤4 at %.
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