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).
-
Patent number: 11972884Abstract: A soft magnetic alloy includes a main component of (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e))MaBbPcSidCe. 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?0.14 is satisfied. 0.020<b?0.20 is satisfied. 0?d?0.060 is satisfied. ??0 is satisfied. ??0 is satisfied. 0??+??0.50 is satisfied. c and e are within a predetermined range. The soft magnetic alloy has a nanohetero structure or a structure of Fe based nanocrystallines.Type: GrantFiled: January 10, 2019Date of Patent: April 30, 2024Assignee: TDK CORPORATIONInventors: Kazuhiro Yoshidome, Akihiro Harada, Hiroyuki Matsumoto, Kenji Horino, Akito Hasegawa, Kensuke Ara, Hajime Amano, Masakazu Hosono
-
Patent number: 11894169Abstract: 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: GrantFiled: May 16, 2019Date of Patent: February 6, 2024Assignee: TDK CORPORATIONInventors: Kazuhiro Yoshidome, Hiroyuki Matsumoto, Kenji Horino, Satoko Mori, Masakazu Hosono, Yoshiki Kajiura
-
Patent number: 11887762Abstract: A soft magnetic metal powder comprising soft magnetic metal particles including Fe, wherein a surface of the soft magnetic metal particle is covered by a coating part having an insulation property, and the coating part includes a soft magnetic metal fine particle.Type: GrantFiled: March 8, 2019Date of Patent: January 30, 2024Assignee: TDK CORPORATIONInventors: Satoko Mori, Hiroyuki Matsumoto, Kenji Horino, Kazuhiro Yoshidome, Takuma Nakano, Seigo Tokoro, Shota Otsuka, Toru Ujiie, Kentaro Mori
-
Patent number: 11798719Abstract: 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: GrantFiled: March 8, 2019Date of Patent: October 24, 2023Assignee: TDK CORPORATIONInventors: Kazuhiro Yoshidome, Hiroyuki Matsumoto, Kenji Horino, Satoko Mori, Takuma Nakano, Seigo Tokoro, Shota Otsuka, Toru Ujiie, Kentaro Mori
-
Patent number: 11783974Abstract: A soft magnetic alloy comprising a main component having a compositional formula of ((Fe(1?(?+?))X1?X2?)(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<c?0.040, 0?d?0.040, ??0, ??0, and 0??+??0.50 are satisfied, when soft magnetic alloy is 100 wt %, P is 0.001 to 0.050 wt %, S is 0.001 to 0.050 wt %, and Ti is 0.001 to 0.080 wt %, and when a value obtained by dividing P by S is P/S, then P/S satisfies 0.10?P/S?10.Type: GrantFiled: January 26, 2018Date of Patent: October 10, 2023Assignee: TDK CORPORATIONInventors: Akihiro Harada, Hiroyuki Matsumoto, Kenji Horino, Kazuhiro Yoshidome, Akito Hasegawa, Hajime Amano, Kensuke Ara, Seigo Tokoro
-
Patent number: 11763969Abstract: 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: GrantFiled: March 8, 2019Date of Patent: September 19, 2023Assignee: TDK CORPORATIONInventors: Kazuhiro Yoshidome, Hiroyuki Matsumoto, Kenji Horino, Satoko Mori, Takuma Nakano, Seigo Tokoro, Shota Otsuka, Toru Ujiie, Kentaro Mori
-
Patent number: 11628500Abstract: A metal powder producing apparatus comprising a melted metal supplying part discharging a melted metal, a cylinder body provided below the melted metal supplying part, and a cooling liquid layer forming part forming a flow of a cooling liquid for cooling the melted metal discharged from the melted metal supplying part along an inner circumference face of the cylinder body, wherein the cooling liquid layer forming part has a primary pressure reservoir, and the primary pressure reservoir is provided on an outer circumference part of the cylinder body.Type: GrantFiled: June 30, 2021Date of Patent: April 18, 2023Assignee: TDK CORPORATIONInventors: Kenji Horino, Kazuhiro Yoshidome, Akihiro Harada, Hiroyuki Matsumoto
-
Patent number: 11521770Abstract: 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: GrantFiled: June 4, 2019Date of Patent: December 6, 2022Assignee: TDK CORPORATIONInventors: Kazuhiro Yoshidome, Hiroyuki Matsumoto, Kenji Horino, Hajime Amano, Akito Hasegawa
-
Patent number: 11508502Abstract: 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: GrantFiled: August 21, 2018Date of Patent: November 22, 2022Assignee: TDK CORPORATIONInventors: Akihiro Harada, Akito Hasegawa, Kazuhiro Yoshidome, Kenji Horino, Hiroyuki Matsumoto
-
Patent number: 11495377Abstract: 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: GrantFiled: February 15, 2019Date of Patent: November 8, 2022Assignee: TDK CORPORATIONInventors: Hajime Amano, Akihiro Harada, Kenji Horino, Hiroyuki Matsumoto, Kazuhiro Yoshidome, Akito Hasegawa, Kensuke Ara, Masakazu Hosono
-
Publication number: 20220351884Abstract: A soft magnetic alloy contains Fe and at least one of metalloid element. An amorphous material and a nanocrystal having a grain size of 5 to 30 nm are mixed. A coefficient of determination between an atomic concentration of Fe and an atomic concentration of the at least one of metalloid element is 0.700 or more.Type: ApplicationFiled: September 30, 2020Publication date: November 3, 2022Applicant: TDK CorporationInventors: Hajime AMANO, Kazuhiro YOSHIDOME, Kenji HORINO, Hiroyuki MATSUMOTO
-
Patent number: 11427896Abstract: 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: GrantFiled: December 3, 2018Date of Patent: August 30, 2022Assignee: TDK CORPORATIONInventors: Akito Hasegawa, Hironobu Kumaoka, Kazuhiro Yoshidome, Hiroyuki Matsumoto, Kenji Horino, Isao Nakahata
-
Patent number: 11401590Abstract: 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: GrantFiled: May 17, 2018Date of Patent: August 2, 2022Assignee: TDK CORPORATIONInventors: Akihiro Harada, Hiroyuki Matsumoto, Kenji Horino, Kazuhiro Yoshidome, Akito Hasegawa, Hajime Amano, Kensuke Ara, Seigo Tokoro, Masakazu Hosono, Takuma Nakano, Satoko Mori
-
Patent number: 11328847Abstract: A soft magnetic alloy including a compositional formula of ((Fe(1?(?+?))X1?X2?)(1?(a+b+c+e))MaBbPcCue)1?fCf, wherein X1 is one or more selected from the group consisting Co and Ni, X2 is one or more selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O, and rare earth elements, “M” is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, W, and V, 0.030<a?0.14, 0.028?b?0.20, 0?c?0.030, 0<e?0.030, 0<f?0.040, ??0, ??0, and 0??+??0.50 are satisfied.Type: GrantFiled: January 26, 2018Date of Patent: May 10, 2022Assignee: TDK CORPORATIONInventors: Akihiro Harada, Hiroyuki Matsumoto, Kenji Horino, Kazuhiro Yoshidome, Akito Hasegawa, Hajime Amano, Kensuke Ara, Seigo Tokoro, Shota Otsuka
-
Patent number: 11189408Abstract: Provided is a soft magnetic alloy including Fe as a main component, in which a slope of an approximate straight line, plotted between cumulative frequencies of 20 to 80% on Fe content in each grid of 80000 grids or more, each of which has 1 nm×1 nm×1 nm, is ?0.1 to ?0.4, provided that Fe content (atom %) of each grid is Y axis, and the cumulative frequencies (%) obtained in descending order of Fe content in each grid is X axis, and an amorphization ratio X is 85% or more.Type: GrantFiled: February 26, 2018Date of Patent: November 30, 2021Assignee: TDK CORPORATIONInventors: Kazuhiro Yoshidome, Hiroyuki Matsumoto, Kenji Horino, Akito Hasegawa, Yu Yonezawa, Syota Goto, Seigo Tokoro
-
Patent number: 11158443Abstract: A soft magnetic alloy contains a main component having a composition formula of (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d))MaBbPcCd and auxiliary components including at least Ti, Mn and Al. In the composition formula, 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 Ag, Zn, Sn, As, Sb, Bi and a rare earth element, and M is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Mo, W and V. In the composition formula, 0.030?a?0.100, 0.050?b?0.150, 0<c?0.030, 0<d?0.030, ??0, ??0, and 0??+??0.50 are satisfied. In the soft magnetic alloy, a content of Ti is 0.001 to 0.100 wt %, a content of Mn is 0.001 to 0.150 wt %, and a content of Al is 0.001 to 0.100 wt %.Type: GrantFiled: September 28, 2018Date of Patent: October 26, 2021Assignee: TDK CORPORATIONInventors: Akihiro Harada, Hiroyuki Matsumoto, Kenji Horino, Kazuhiro Yoshidome, Akito Hasegawa, Hajime Amano, Kensuke Ara, Seigo Tokoro, Masakazu Hosono, Takuma Nakano, Satoko Mori
-
Publication number: 20210323064Abstract: A metal powder producing apparatus comprising a melted metal supplying part discharging a melted metal, a cylinder body provided below the melted metal supplying part, and a cooling liquid layer forming part forming a flow of a cooling liquid for cooling the melted metal discharged from the melted metal supplying part along an inner circumference face of the cylinder body, wherein the cooling liquid layer forming part has a primary pressure reservoir, and the primary pressure reservoir is provided on an outer circumference part of the cylinder body.Type: ApplicationFiled: June 30, 2021Publication date: October 21, 2021Applicant: TDK CORPORATIONInventors: Kenji HORINO, Kazuhiro YOSHIDOME, Akihiro HARADA, Hiroyuki MATSUMOTO
-
Patent number: 11152145Abstract: Soft magnetic metal powder which includes a plurality of soft magnetic metal particles configured by a Fe-based nanocrystal alloy including Cu is provided, wherein the soft magnetic metal particles have core portions and first shell portions surrounding circumferences of the core portions; when an average crystallite size of Cu crystallites existing in the core portions is set as A, and the largest crystallite size of Cu crystallites existing in the first shell portions is set as B, B/A is 3.0 or more and 1000 or less.Type: GrantFiled: March 8, 2019Date of Patent: October 19, 2021Assignee: TDK CORPORATIONInventors: Takuma Nakano, Kazuhiro Yoshidome, Hiroyuki Matsumoto, Satoko Mori, Seigo Tokoro, Kenji Horino
-
Patent number: 11145448Abstract: A soft magnetic alloy powder includes a plurality of soft magnetic alloy particles of a soft magnetic alloy represented by a composition formula (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e))MaBbPcSidCe, wherein X1 represents Co and/or Ni; X2 represents at least one selected from the 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 the 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, ??0, and 0??+??0.50 are satisfied, and wherein the soft magnetic alloy has a nano-heterostructure with initial fine crystals present in an amorphous substance; and the 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 the group consisting of P, Si, Bi, and Zn.Type: GrantFiled: March 8, 2019Date of Patent: October 12, 2021Assignee: TDK CORPORATIONInventors: Masakazu Hosono, Kenji Horino, Hiroyuki Matsumoto, Kazuhiro Yoshidome, Akito Hasegawa, Hajime Amano, Isao Nakahata
-
Patent number: 11084094Abstract: A metal powder producing apparatus comprising a melted metal supplying part discharging a melted metal, a cylinder body provided below the melted metal supplying part, and a cooling liquid layer forming part forming a flow of a cooling liquid for cooling the melted metal discharged from the melted metal supplying part along an inner circumference face of the cylinder body, wherein the cooling liquid layer forming part has a primary pressure reservoir, and the primary pressure reservoir is provided on an outer circumference part of the cylinder body.Type: GrantFiled: July 10, 2018Date of Patent: August 10, 2021Assignee: TDK CORPORATIONInventors: Kenji Horino, Kazuhiro Yoshidome, Akihiro Harada, Hiroyuki Matsumoto