Patents by Inventor Kenji Horino
Kenji Horino has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11081266Abstract: Soft magnetic alloy powder includes plurality of soft magnetic alloy particles of soft magnetic alloy represented by composition formula (Fe(1?(?+?))X1?X2?)(1?(a+b+c++e+f+g))MaBbPcSidCeSfTig, wherein X1 represents Co and/or Ni; X2 represents at least one selected from group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements; M represents at least one selected from group consisting of Nb, Hf, Zr, Ta, Mo, W, and V; 0.020?a?0.14, 0.020<b?0.20, 0<c?0.15, 0?d?0.060, 0?e?0.040, 0?f?0.010, 0?g?0.0010, ??0, ??0, and 0??+??0.50 are satisfied, wherein at least one of f and g is more than 0; and wherein soft magnetic alloy has a nano-heterostructure with initial fine crystals present in an amorphous substance; and surface of each of the soft magnetic alloy particles is covered with a coating portion including a compound of at least one element selected from group consisting of P, Si, Bi, and Zn.Type: GrantFiled: March 8, 2019Date of Patent: August 3, 2021Assignee: TDK CORPORATIONInventors: Masakazu Hosono, Hiroyuki Matsumoto, Kenji Horino, Kazuhiro Yoshidome, Isao Nakahata, Akito Hasegawa, Hajime Amano
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Patent number: 10991495Abstract: A soft magnetic alloy which includes nanocrystal parts and amorphous parts is provided. The nanocrystal parts include ?Fe(—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 ? (at %), and a total content ratio of the sub-components of the nanocrystal parts included in the amorphous parts is set as ? (at %), 0.01?(?/?)?0.40, and a crystallinity degree is 5% or more and 70% or less.Type: GrantFiled: December 17, 2018Date of Patent: April 27, 2021Assignee: TDK CORPORATIONInventors: Kazuhiro Yoshidome, Hiroyuki Matsumoto, Kenji Horino, Akito Hasegawa, Hajime Amano, Kensuke Ara, Akihiro Harada
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Patent number: 10943718Abstract: Provided is a soft magnetic alloy including Fe, as a main component, and including C. the soft magnetic alloy includes an Fe composite network phase having Fe-rich grids connected in a continuous measurement range including 80000 grids, each of which size is 1 nm×1 nm×1 nm. An average of C content ratio of the Fe-poor grids having cumulative frequency of 90% or more from lower C content is 5.0 times or more to an average of C content ratio of the whole soft magnetic alloy.Type: GrantFiled: February 26, 2018Date of Patent: March 9, 2021Assignee: TDK CORPORATIONInventors: Kazuhiro Yoshidome, Hiroyuki Matsumoto, Kenji Horino, Akito Hasegawa, Yu Yonezawa, Syota Goto, Hajime Amano
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Publication number: 20210062308Abstract: Provided is a soft magnetic alloy having a composition of a compositional formula (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e))PaCbSicCudMe. X1 is one or more selected from a group consisting of Co and Ni, X2 is one or more selected from a group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, 0, and rare earth elements, and M is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, W and V. 0.050?a?0.17, 0<b<0.050, 0.030<c?0.10, 0<d?0.020, 0?e?0.030, ??0, ??0, and 0??+??0.50.Type: ApplicationFiled: May 17, 2018Publication date: March 4, 2021Applicant: TDK CORPORATIONInventors: Akihiro HARADA, Hiroyuki MATSUMOTO, Kenji HORINO, Kazuhiro YOSHIDOME, Akito HASEGAWA, Hajime AMANO, Kensuke ARA, Seigo TOKORO, Masakazu HOSONO, Takuma NAKANO, Satoko MORI
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Publication number: 20210020342Abstract: Provided is a soft magnetic alloy which has high saturation flux density and low coercivity and is represented by the compositional formula (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e+f))MaPbSicCudX3eBf, wherein X1 is at least one element selected from the group consisting of Co and Ni, X2 is at least one element selected from the group consisting of Ti, V, Mn, Ag, Zn, Al, Sn, As, Sb, Bi, and rare earth elements, X3 is at least one element selected from the group consisting of C and Ge, and M is at least one element selected from the group consisting of Zr, Nb, Hf, Ta, Mo, and W, and wherein 0.030?a?0.120, 0.010?b?0.150, 0?c?0.050, 0?d?0.020, 0?e?0.100, 0?f?0.030, ??0, ??0, and 0??+??0.55.Type: ApplicationFiled: February 15, 2019Publication date: January 21, 2021Applicant: TDK CORPORATIONInventors: Hajime AMANO, Akihiro HARADA, Kenji HORINO, Hiroyuki MATSUMOTO, Kazuhiro YOSHIDOME, Akito HASEGAWA, Kensuke ARA, Masakazu HOSONO
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Publication number: 20200377982Abstract: Provided is a soft magnetic alloy which has high saturation flux density, low coercivity, and a high specific resistance, and is represented by the compositional formula (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e))MaSibCucX3dBe, wherein X1 is at least one element selected from the group consisting of Co and Ni, X2 is at least one element selected from the group consisting of Ti, V, Mn, Ag, Zn, Al, Sn, As, Sb, Bi, and rare earth elements, X3 is at least one element selected from the group consisting of C and Ge, and M is at least one element selected from the group consisting of Zr, Nb, Hf, Ta, Mo, and W, and wherein 0.030?a?0.120, 0.020?b?0.175, 0?c?0.020, 0?d?0.100, 0?e?0.030, ??0, ??0, and 0??+??0.55).Type: ApplicationFiled: February 15, 2019Publication date: December 3, 2020Applicant: TDK CORPORATIONInventors: Hajime AMANO, Akihiro HARADA, Kazuhiro YOSHIDOME, Kenji HORINO, Hiroyuki MATSUMOTO, Kensuke ARA, Akito HASEGAWA, Seigo TOKORO
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Patent number: 10854365Abstract: Provided is a soft magnetic alloy including Fe, as a main component, and including B. Among 80000 pieces of a grid having 1 nm×1 nm×1 nm in a continuous measurement range of the soft magnetic alloy, 4000 pieces of the grid from lower Fe content shows B content variation (?B) of 2.8 or more, and an amorphization ratio X of the soft magnetic alloy of 85% or more.Type: GrantFiled: February 26, 2018Date of Patent: December 1, 2020Assignee: TDK CORPORATIONInventors: Kazuhiro Yoshidome, Hiroyuki Matsumoto, Kenji Horino, Akito Hasegawa, Yu Yonezawa, Syota Goto, Seigo Tokoro
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Patent number: 10847292Abstract: A soft magnetic alloy is composed of a Fe-based nanocrystal and an amorphous phase. In the soft magnetic alloy, S2-S1>0 is satisfied, where S1 (at %) denotes an average content rate of Si in the Fe-based nanocrystal and S2 (at %) denotes an average content rate of Si in the amorphous phase. In addition, the soft magnetic alloy has a composition formula of ((Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e+f))MaBbSicPdCreCuf)1?gCg. X1 is one or more selected from the group consisting of Co and Ni, X2 is one or more selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O, S and a rare earth element, and M is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, V and W. In the composition formula, a to g, ? and ? are in specific ranges.Type: GrantFiled: August 6, 2018Date of Patent: November 24, 2020Assignee: TDK CORPORATIONInventors: Kazuhiro Yoshidome, Akito Hasegawa, Hiroyuki Matsumoto, Kenji Horino, Akihiro Harada, Syota Goto, Isao Nakahata
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Publication number: 20200362442Abstract: A soft magnetic alloy thin strip which has high saturation magnetic flux density and low coercivity, which enables a core with high space factor and high saturation magnetic flux density. A soft magnetic alloy thin strip including a main component that has a composition formula (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e+f))MaBbPcSidCeSf. In the formula, X1, X2 and M are selected from a specific element group; 0?a?0.140, 0.020?b?0.200, 0?c?0.150, 0?d?0.090, 0?e?0.030, 0?f?0.030, ??0, ??0, and 0??+??0.50; and at least one of a, c and d is larger than 0. The strip has a structure that is composed of an Fe-based nanocrystal; and the surface roughness of a release surface satisfies 0.85?Rae/Rac?1.25 (wherein Rac is the average of arithmetic mean roughnesses in the central portion, and Rae is the average in the edge portion).Type: ApplicationFiled: December 3, 2018Publication date: November 19, 2020Applicant: TDK CORPORATIONInventors: Akito HASEGAWA, Hironobu KUMAOKA, Kazuhiro YOSHIDOME, Hiroyuki MATSUMOTO, Kenji HORINO, Isao NAKAHATA
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Publication number: 20200357547Abstract: A soft magnetic alloy or the like combining high saturated magnetic flux density, low coercive force and high magnetic permeability ?? having the composition formula (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e))BaSibCcCudMe. X1 is one more elements selected from the group consisting of Co and Ni, X2 is one or more elements selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O and rare earth elements, and M is one or more elements selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, W and V. 0.140<a?0.240, 0?b?0.030, 0<c<0.080, 0<d?0.020, 0?e?0.030, ??0, ??0, and 0??+??0.50 are satisfied.Type: ApplicationFiled: August 21, 2018Publication date: November 12, 2020Applicant: TDK CORPORATIONInventors: Akihiro HARADA, Akito HASEGAWA, Kazuhiro YOSHIDOME, Kenji HORINO, Hiroyuki MATSUMOTO
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Publication number: 20200357546Abstract: A soft magnetic alloy or the like combines high saturated magnetic flux density, low coercive force and high magnetic permeability ??. A soft magnetic alloy having the composition formula (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e))BaSibCcCudMe. X1 is one or more elements selected from the group consisting of Co and Ni, X2 is one or more elements selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O and rare earth elements, and M is one or more elements selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, ?? and V. 0.090?a?0.240, 0.Type: ApplicationFiled: August 21, 2018Publication date: November 12, 2020Applicant: TDK CORPORATIONInventors: Akihiro HARADA, Akito HASEGAWA, Kazuhiro YOSHIDOME, Kenji HORINO, Hiroyuki MATSUMOTO
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Patent number: 10748688Abstract: A soft magnetic alloy including a composition having a formula of ((Fe(1?(?+?))X1?X2?)(1?(a+b+d+e))MaBbCrdCue)1?fCf. X1 is one or more elements selected from a group of Co and Ni. X2 is one or more elements selected from a group of W, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O, and rare earth elements. M is one or more elements selected from a group of Nb, Hf, Zr, Ta, Ti, Mo, and V. 0.030?a?0.14, 0.028?b?0.15, 0.005?d?0.020, 0<e?0.030, 0?f?0.040, ??0, ??0, and 0??+??0.50 are satisfied.Type: GrantFiled: October 26, 2017Date of Patent: August 18, 2020Assignee: TDK CORPORATIONInventors: Akihiro Harada, Hiroyuki Matsumoto, Kenji Horino, Kazuhiro Yoshidome, Akito Hasegawa, Hajime Amano, Kensuke Ara, Masahito Koeda, Seigo Tokoro
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Publication number: 20200135369Abstract: A soft magnetic alloy powder includes a main component of (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e+f))MaBbPcSidCeSf, in which X1 is one or more of Co and Ni, X2 is one or more of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements, and M is one or more of Nb, Hf, Zr, Ta, Mo, W, Ti, and V. 0?a?0.160, 0.020?b?0.200, 0?c?0.150, 0?d?0.060, 0?e?0.030, 0.0010?f?0.030, 0.005?f/b?1.50, ??0, ??0, and 0??+??0.50 are satisfied.Type: ApplicationFiled: October 28, 2019Publication date: April 30, 2020Applicant: TDK CORPORATIONInventors: Kazuhiro YOSHIDOME, Hiroyuki MATSUMOTO, Kenji HORINO, Masakazu HOSONO, Yoshiki KAJIURA
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Publication number: 20200082964Abstract: A composite magnetic body with high permeability and low magnetic loss in a high-frequency region of a gigahertz band; and a high-frequency electronic component using the same, the electronic component being compact and having low-insertion loss. This composite magnetic body has a high permeability and a low magnetic loss especially in a high-frequency region of a gigahertz band, and is provided with: a plurality of magnetic nanowires 361-363 aligned so as not to cross each other; and insulators 365-367 that electrically insulate the plurality of magnetic nanowires 361-363.Type: ApplicationFiled: March 30, 2018Publication date: March 12, 2020Applicant: TDK CORPORATIONInventors: Takeshi SAKAMOTO, Yoshihiro SHINKAI, Yu YONEZAWA, Hideharu MORO, Kensuke ARA, Tohru OIKAWA, Isao KANADA, Kenji HORINO, Kyung-Ku CHOI
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Patent number: 10535455Abstract: A soft magnetic alloy including a main component having a compositional formula of (Fe(1?(?+?))X1?X2?)(1?(a+b+c))MaBbPc, and a sub component including at least C, S and Ti, wherein X1 is one or more selected from the group including Co and Ni, X2 is one or more selected from the group including Al, Mn, Ag, Zn, Sn, As, Sb, Bi, and rare earth elements, “M” is one or more selected from the group including Nb, Hf, Zr, Ta, Mo, W, and V, 0.020?a?0.14, 0.020?b?0.20, 0?c?0.040, ??0, ??0, and 0??+??0.50 are satisfied, when entire said soft magnetic alloy is 100 wt %, a content of said C is 0.001 to 0.050 wt %, a content of said S is 0.001 to 0.050 wt %, and a content of said Ti is 0.001 to 0.080 wt %, and when a value obtained by dividing the content of said C by the content of said S is C/S, then C/S satisfies 0.10?C/S?10.Type: GrantFiled: January 26, 2018Date of Patent: January 14, 2020Assignee: TDK CORPORATIONInventors: Akihiro Harada, Hiroyuki Matsumoto, Kenji Horino, Kazuhiro Yoshidome, Akito Hasegawa, Hajime Amano, Kensuke Ara, Seigo Tokoro, Shota Otsuka
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Publication number: 20190385770Abstract: A soft magnetic alloy includes a composition of (Fe(1-(?+?))X1?X2?)(1-(a+b+c+d+e+f+g))MaTibBcPdSieSfCg. X1 is one or more of Co and Ni. X2 is one or more of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements. M is one or more of Nb, Hf, Zr, Ta, Mo, W, and V. 0.020?a+b?0.140, 0.001?b?0.140, 0.020<c?0.200, 0.010?d?0.150, 0?e?0.060, a?0, f?0, g?0, a+b+c+d+e+f+g<1, ??0, ??0, and 0??+??0.50 are satisfied. The soft magnetic alloy has a nanohetero structure or a structure of Fe-based nanocrystalline.Type: ApplicationFiled: June 4, 2019Publication date: December 19, 2019Applicant: TDK CORPORATIONInventors: Kazuhiro YOSHIDOME, Hiroyuki MATSUMOTO, Kenji HORINO, Hajime AMANO, Akito HASEGAWA
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Publication number: 20190355498Abstract: Disclosed is a soft magnetic powder including a main component represented by composition formula: (Fe(1-(?+?))X1?X2?)(1-(a+b+c+d+e+f))MaBbPcSidCeSf. X1 represents one or more selected from the group consisting of Co and Ni; X2 represents one or more selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, and rare earth elements; and M represents one or more selected from the group consisting of Nb, Hf, Zr, Ta, Mo, W, Ti, and V. The following relations are satisfied: 0?a?0.140; 0.020<b?0.200; 0<c?0.150; 0?d?0.060; 0?e?0.030; 0?f?0.010; ??0; ??0; and 0??+??0.50. An oxygen content ratio in the soft magnetic powder is from 300 ppm to 3,000 ppm as a mass ratio.Type: ApplicationFiled: May 16, 2019Publication date: November 21, 2019Applicant: TDK CORPORATIONInventors: Kazuhiro YOSHIDOME, Hiroyuki MATSUMOTO, Kenji HORINO, Satoko MORI, Masakazu HOSONO, Yoshiki KAJIURA
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Publication number: 20190279796Abstract: Soft magnetic alloy powder includes plurality of soft magnetic alloy particles of soft magnetic alloy represented by composition formula (Fe(1?(?+?))X1?X2?)(1?(a+b+c++e+f+g))MaBbPcSidCeSfTig, wherein X1 represents Co and/or Ni; X2 represents at least one selected from group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements; M represents at least one selected from group consisting of Nb, Hf, Zr, Ta, Mo, W, and V; 0.020?a?0.14, 0.020<b?0.20, 0<c?0.15, 0?d?0.060, 0?e?0.040, 0?f?0.010, 0?g?0.0010, ??0, ??0, and 0??+??0.50 are satisfied, wherein at least one of f and g is more than 0; and wherein soft magnetic alloy has a nano-heterostructure with initial fine crystals present in an amorphous substance; and surface of each of the soft magnetic alloy particles is covered with a coating portion including a compound of at least one element selected from group consisting of P, Si, Bi, and Zn.Type: ApplicationFiled: March 8, 2019Publication date: September 12, 2019Applicant: TDK CORPORATIONInventors: Masakazu HOSONO, Hiroyuki MATSUMOTO, Kenji HORINO, Kazuhiro YOSHIDOME, Isao NAKAHATA, Akito HASEGAWA, Hajime AMANO
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Publication number: 20190279802Abstract: A soft magnetic metal powder having soft magnetic metal particles including Fe, wherein a surface of the soft magnetic metal particle is covered by a coating part, the coating part has a first coating part and a second coating part in this order from the surface of the soft magnetic metal particle towards outside, the first coating part includes oxides of Fe as a main component, the second coating part includes a compound of at least one element selected from the group consisting of P, Si, Bi, and Zn, and a ratio of trivalent Fe atom among Fe atoms of oxides of Fe included in the first coating part is 50% or more.Type: ApplicationFiled: March 8, 2019Publication date: September 12, 2019Applicant: TDK CorporationInventors: Kazuhiro YOSHIDOME, Hiroyuki Matsumoto, Kenji Horino, Satoko Mori, Takuma Nakano, Seigo Tokoro, Shota Otsuka, Toru Ujiie, Kentaro Mori
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Publication number: 20190279801Abstract: A soft magnetic metal powder having soft magnetic metal particles, wherein a surface of the soft magnetic metal particle is covered by a coating part, the coating part has a first coating part, a second coating part, and a third coating part in this order from the surface of the soft magnetic metal particle towards outside, the first coating part includes oxides of Si as a main component, the second coating part includes oxides of Fe as a main component, and the third coating part includes a compound of at least one element selected from the group consisting of P, Si, Bi, and Zn.Type: ApplicationFiled: March 8, 2019Publication date: September 12, 2019Applicant: TDK CORPORATIONInventors: Kazuhiro YOSHIDOME, Hiroyuki MATSUMOTO, Kenji HORINO, Satoko MORI, Takuma NAKANO, Seigo TOKORO, Shota OTSUKA, Toru UJIIE, Kentaro MORI