Patents by Inventor Yuya ISHIMA
Yuya ISHIMA 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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Publication number: 20250239395Abstract: A multilayer coil component includes an element body, a coil disposed in the element body, and an external electrode exposed on the element body. The external electrode is electrically connected to the coil. The element body includes a stress reduction layer positioned between the coil and the external electrode.Type: ApplicationFiled: January 3, 2025Publication date: July 24, 2025Applicant: TDK CORPORATIONInventors: Yusuke NAGAI, Makoto Yoshino, Hidenobu Umeda, Shinichi Sato, Yuya Ishima, Kosuke Ito, Youhei Iida, Mitsuharu Koike, Keito Yasuda
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Patent number: 12362078Abstract: In a photosensitive conductive paste containing photosensitive organic components, conductor powder, and quartz powder, melting of the quartz powder does not occur or is very unlikely to occur in a heat treatment step, and in the heat treatment step, it functions sufficiently to bring shrinkage rates and shrinkage behaviors of both of a conductor layer and an element body layer closer to each other when they shrink, and thus generation of voids can be inhibited when it is used for manufacturing a laminated coil component.Type: GrantFiled: April 14, 2021Date of Patent: July 15, 2025Assignee: TDK CORPORATIONInventors: Yuya Ishima, Masaki Takahashi, Akira Suda, Takashi Suzuki, Hidenobu Umeda
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Patent number: 12354785Abstract: A multilayer coil component includes: an element body containing a plurality of metal magnetic particles; a coil disposed in the element body; and an external electrode disposed on a surface of the element body and electrically connected to the coil. At least a part of a void part between the metal magnetic particles in the element body is filled with a first resin, the external electrode has a resin electrode containing a second resin and a conductor powder dispersed in the second resin, and the second resin connected from the resin electrode extends into the element body.Type: GrantFiled: September 30, 2021Date of Patent: July 8, 2025Assignee: TDK CORPORATIONInventors: Yusuke Nagai, Takashi Suzuki, Kazuhiro Ebina, Kunihiko Kawasaki, Shinichi Kondo, Yuya Ishima, Shinichi Sato, Seiichi Nakagawa, Keito Yasuda, Ryuichi Wada
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Patent number: 12249453Abstract: In a multilayer coil component, a coil is configured by electrically connecting coil conductors respectively provided in magnetic body layers constituting an element body and metal magnetic particles have a normal particle having an ellipsoidal shape and flat particles having an ellipsoidal shape flatter in a thickness direction than the normal particle. A plurality of the normal particles and at least one of the flat particles disposed such that a surface (reference surface) including a major axis direction orthogonal to the thickness direction and a minor axis direction is along the forming surface of the coil conductor in the magnetic body layer are arranged in the lamination direction of the magnetic body layers between the coil conductors.Type: GrantFiled: November 10, 2021Date of Patent: March 11, 2025Assignee: TDK CORPORATIONInventors: Yusuke Nagai, Kazuhiro Ebina, Kouichi Kakuda, Kunihiko Kawasaki, Shinichi Kondo, Yuya Ishima, Masaki Takahashi, Takahiro Sato, Keito Yasuda, Shingo Hattori
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Publication number: 20240404740Abstract: A multilayer coil component includes an element body that contains a plurality of metal magnetic particles made of a soft magnetic material, and at least two conductors that are in contact with the element body. Surfaces of the plurality of metal magnetic particles are covered by an oxide film having an insulating property, an insulating portion having an insulating property is formed in at least a part of a surface of at least one conductor of the two conductors in the conductor, and a thickness of the insulating portion is larger than a thickness of the oxide film.Type: ApplicationFiled: April 15, 2024Publication date: December 5, 2024Applicant: TDK CorporationInventors: Yusuke Nagai, Takahiro Sato, Hidenobu Umeda, Takeshi Shibayama, Shinichi Sato, Yuya Ishima, Youhei Iida, Mitsuharu Koike, Keito Yasuda, Takato Sasaki
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Publication number: 20240331929Abstract: A coil component 1 includes an element body having a mounting surface, a coil disposed in the element body, terminal electrodes disposed on the mounting surface of the element body, and a first connection conductor and a second connection conductor connecting the coil and the terminal electrodes, respectively, in which the first connection conductor and the second connection conductor have first portions connected to the terminal electrodes, second portions connected to the coil, and third portions connecting the first portions and the second portions, respectively, and an area of a first pore per unit area in the first portion is larger than an area of a third pore per unit area in the third portion.Type: ApplicationFiled: January 4, 2024Publication date: October 3, 2024Applicant: TDK CORPORATIONInventors: Keito YASUDA, Yusuke Nagai, Makoto Yoshino, Masaki Takahashi, Shinichi Sato, Yuya Ishima, Shingo Hattori, Youhei Iida, Mitsuharu Koike, Takato Sasaki
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Publication number: 20240331910Abstract: A coil component includes an element body having a mounting surface, and a terminal electrode disposed on the mounting surface, in which at least a part of the terminal electrode is embedded in the element body, the terminal electrode has an opening penetrating the terminal electrode in a direction orthogonal to the mounting surface, and a part of the element body is disposed in the opening.Type: ApplicationFiled: January 4, 2024Publication date: October 3, 2024Applicant: TDK CORPORATIONInventors: Keito YASUDA, Yusuke Nagai, Makoto Yoshino, Shinichi Sato, Yuya Ishima, Youhei IIDA, Mitsuharu Koike, Takato Sasaki
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Publication number: 20240331911Abstract: A multilayer coil component includes an element body, a coil disposed in the element body, terminal electrodes disposed in the element body, and a first connection conductor and a second connection conductor that connect the coil and the terminal electrodes. A plurality of first pores are provided in the coil, a plurality of second pores are provided in the first connection conductor and the second connection conductor, and an area of the second pore per unit area in the first connection conductor and the second connection conductor is larger than an area of the first pore per unit area in the coil.Type: ApplicationFiled: January 4, 2024Publication date: October 3, 2024Applicant: TDK CorporationInventors: Yusuke Nagai, Takahiro Sato, Makoto Yoshino, Hidenobu Umeda, Masaki Takahashi, Yuya Ishima, Kosuke Ito, Keito Yasuda, Takato Sasaki, Takuya Miyashita
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Publication number: 20240242883Abstract: A method for manufacturing a coil component including an element body, and a coil disposed inside the element body and including a first coil conductor and a second coil conductor having different shapes, the method comprises: applying a first photosensitive conductive paste on a substrate and exposing the first photosensitive conductive paste to light with a pattern corresponding to the first coil conductor to form a first curing pattern; after the forming of the first curing pattern, applying a second photosensitive conductive paste on the first photosensitive conductive paste and exposing the second photosensitive conductive paste to light with a pattern corresponding to the second coil conductor to form a second curing pattern; after the forming of the second curing pattern, developing portions of the first photosensitive conductive paste and the second photosensitive conductive paste that were not exposed; and after the developing, adding an insulating material on the substrate.Type: ApplicationFiled: January 11, 2024Publication date: July 18, 2024Applicant: TDK CorporationInventors: Yuya ISHIMA, Kenji KOMORITA, Shingo HATTORI, Yoji TOZAWA, Masaki TAKAHASHI, Hidenobu UMEDA, Yusuke NAGAI, Akihiko OIDE
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Patent number: 11955275Abstract: A method for producing a multilayer coil component includes forming, on a main face of a substrate, a first coil conductor extending along the main face having conductivity, forming a second coil conductor and a third coil conductor apart from each other in a direction in which the first coil conductor extends and each extending from the first coil conductor in a first direction orthogonal to the main face, and forming a fourth coil conductor electrically connected to an end of the second coil conductor opposite to the first coil conductor and extending along the main face. The forming the first coil conductor includes forming, on the main face, a first insulator layer provided with a first penetration portion having a shape corresponding to the first coil conductor and exposing a part of the main face, and forming, by plating, the first coil conductor in the first penetration portion.Type: GrantFiled: August 27, 2020Date of Patent: April 9, 2024Assignee: TDK CORPORATIONInventors: Yuya Ishima, Shinichi Kondo, Kosuke Ito, Shingo Hattori, Takashi Suzuki, Hidenobu Umeda
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Publication number: 20240079177Abstract: A multilayer coil component includes an element body, a plurality of coil conductors, a first resistive layer, and a second resistive layer. The plurality of coil conductors are disposed in the element body and electrically connected to each other. The plurality of coil conductors include a first coil conductor and a second coil conductor adjacent to each other. The first resistive layer and the second resistive layer oppose each other between the first coil conductor and the second coil conductor. The first resistive layer is in contact with the first coil conductor.Type: ApplicationFiled: July 26, 2023Publication date: March 7, 2024Applicant: TDK CORPORATIONInventors: Yusuke NAGAI, Kazuhiro EBINA, Takahiro SATO, Masaki TAKAHASHI, Takashi ENDO, Yuya ISHIMA, Kosuke ITO, Takuya MIYASHITA
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Patent number: 11915852Abstract: An electronic component according to an aspect of the present disclosure includes an element body and a terminal electrode. The element body includes an outer surface provided with a depression. The terminal electrode is disposed on the element body. The terminal electrode includes a first electrode portion and a second electrode portion. The first electrode portion is disposed in the depression. The second electrode portion protrudes from the depression. The second electrode portion is thicker than the first electrode portion.Type: GrantFiled: July 7, 2020Date of Patent: February 27, 2024Assignee: TDK CORPORATIONInventors: Yuya Ishima, Shinichi Kondo, Kosuke Ito, Shingo Hattori, Kazuya Tobita, Noriaki Hamachi, Atsushi Moriya
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Patent number: 11749445Abstract: A laminated coil component includes an element body, a coil, and a pair of conductors. The pair of conductors is disposed on the element body. Each of the pair of conductors has an L shape when viewed from the third direction. Each of the pair of conductors includes a first conductor portion and a second conductor portion. The first conductor portion is disposed on one of first side faces. The second conductor portion is disposed on a pair of end faces. The coil includes a first coil portion and a second coil portion. The first coil portion includes a first straight portion and a pair of second straight portions. The pair of second straight portions is connected to both ends of the first straight portion. The second coil portion is curved as a whole.Type: GrantFiled: November 19, 2021Date of Patent: September 5, 2023Assignee: TDK CORPORATIONInventors: Hajime Kato, Yuto Shiga, Kazuya Tobita, Youichi Kazuta, Yuya Ishima, Satoru Okamoto, Shunji Aoki
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Publication number: 20230230742Abstract: A multilayer coil component includes an element body including an end surface, a coil disposed in the element body, and an external electrode disposed on an end portion of the element body and connected to the coil. The external electrode includes a conductive resin layer. The conductive resin layer includes resin and a plurality of metal particles and is in contact with the end surface. The conductive resin layer includes a metal particle group. The metal particle group consists a plurality of first metal particles included in the plurality of metal particles, and the plurality of first metal particles is adjacent to the end surface and separated from the end surface.Type: ApplicationFiled: December 21, 2022Publication date: July 20, 2023Applicant: TDK CORPORATIONInventors: Yusuke NAGAI, Kazuhiro EBINA, Kunihiko KAWASAKI, Shinichi KONDO, Yuya ISHIMA, Shinichi SATO, Seiichi NAKAGAWA, Kosuke ITO, Keito YASUDA, Youhei IIDA
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Patent number: 11705276Abstract: A method for manufacturing an electronic-component includes a step of forming a laminate substrate including a plurality of laminates disposed in a direction intersecting with a lamination direction via a division portion by laminating a plurality of insulator layers, and a step of singulating the plurality of laminates by removing the division portion. The step of forming the laminate substrate includes a step of forming an insulator resist layer containing an insulating material on a base material, the insulating material being a constituent material of each of the insulator layers and a step of forming the insulator layer by curing the insulator resist layer by exposure, except for at least an insulator resist portion corresponding to the division portion. The division portion including the insulator resist portion is removed by development in the step of singulating.Type: GrantFiled: September 2, 2020Date of Patent: July 18, 2023Assignee: TDK CORPORATIONInventors: Yuya Ishima, Shinichi Kondo, Kosuke Ito, Shingo Hattori
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Publication number: 20230215616Abstract: A coil component includes: an element body; a coil including a plurality of coil conductors disposed in the element body and electrically connected to each other; an external electrode disposed on the element body; and a connection conductor that connects the coil and the external electrode. The connection conductor has an end portion exposed from an outer surface of the element body and connected to the external electrode. The end portion has a shape extending outward over an entire circumference.Type: ApplicationFiled: December 28, 2022Publication date: July 6, 2023Applicant: TDK CORPORATIONInventors: Yusuke NAGAI, Kazuhiro EBINA, Kunihiko KAWASAKI, Shinichi KONDO, Yuya ISHIMA, Shinichi SATO, Kosuke ITO
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Publication number: 20230072794Abstract: A multilayer coil component includes: an element body formed by stacking a magnetic body layer containing a plurality of metal magnetic particles of a soft magnetic material; a first coil disposed in the element body and configured to include a plurality of first coil conductors; a second coil disposed in the element body and configured to include a plurality of second coil conductors; a first external electrode to which one end portion of each of the first coil and the second coil is connected; and a second external electrode to which the other end portion of each of the first coil and the second coil is connected.Type: ApplicationFiled: September 7, 2022Publication date: March 9, 2023Applicant: TDK CORPORATIONInventors: Yusuke NAGAI, Kazuhiro EBINA, Takahiro SATO, Kunihiko KAWASAKI, Shinichi SATO, Shinichi KONDO, Kouichi KAKUDA, Yuya ISHIMA, Kosuke ITO
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Publication number: 20230070168Abstract: A multilayer coil component includes: an element body; a coil disposed in the element body; and a first external electrode disposed on a surface of the element body in which the first external electrode has a first electrode layer disposed on the surface of the element body and a first plating layer and a second plating layer disposed on the first electrode layer, and the first plating layer and the second plating layer are disposed so as to be scattered in a plurality of places on an edge of the first electrode layer.Type: ApplicationFiled: September 7, 2022Publication date: March 9, 2023Applicant: TDK CORPORATIONInventors: Yusuke NAGAI, Kazuhiro EBINA, Takahiro SATO, Kunihiko KAWASAKI, Shinichi SATO, Seiichi NAKAGAWA, Kouichi KAKUDA, Yuya ISHIMA, Mitsuru ITO
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Patent number: 11488761Abstract: A laminated electronic component includes an element body and a conductor. The element body is formed by laminating a plurality of element-body layers. The element body has a first face, a second face, and a pair of third faces. The conductor is disposed on the element body and has an L shape. The conductor has an exposed face exposed on the first face and the second face. The exposed face includes a plurality of divided regions divided by the element body. The length of each divided region in a dividing direction is longer than a distance with which the plurality of divided regions is separated from each other and longer than a distance with which the exposed face and the pair of third faces are separated from each other.Type: GrantFiled: June 28, 2018Date of Patent: November 1, 2022Assignee: TDK CORPORATIONInventors: Yuto Shiga, Hajime Kato, Kazuya Tobita, Youichi Kazuta, Yuya Ishima, Satoru Okamoto, Shunji Aoki
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Publication number: 20220336140Abstract: A coil-type electronic component comprises an element including a magnetic element body and a coil conductor. A portion of the magnetic element body in between layers of the coil conductor adjacent to each other in an axis direction of the coil conductor includes first soft magnetic metal particles. A portion of the magnetic element body on an outer side along the axis includes second soft magnetic metal particles. The first soft magnetic metal particles have a saturation magnetization (Ms) higher than that of the second soft magnetic metal particles.Type: ApplicationFiled: April 11, 2022Publication date: October 20, 2022Applicant: TDK CORPORATIONInventors: Yu SAKURAI, Takashi SUZUKI, Hideyuki ITOH, Kouichi KAKUDA, Ryuichi WADA, Nami ENOMOTO, Yusuke NAGAI, Kunihiko KAWASAKI, Shinichi KONDO, Yuya ISHIMA