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).

  • Patent number: 11211192
    Abstract: 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: Grant
    Filed: July 26, 2018
    Date of Patent: December 28, 2021
    Assignee: TDK CORPORATION
    Inventors: Hajime Kato, Yuto Shiga, Kazuya Tobita, Youichi Kazuta, Yuya Ishima, Satoru Okamoto, Shunji Aoki
  • Patent number: 11211188
    Abstract: In a stepwise structure formed in a multilayer coil component, a difference occurs in a shrinkage amount between a maximum film thickness portion in which the number of layers is large and a minimum film thickness portion in which the number of layers is small due to portions different in the number of layers of coil parts (that is, upper coil part, lower coil part, and connecting part) adjacent to each other like the maximum film thickness portion and the minimum film thickness portion, readily causing a crack by an inner stress due to the difference in the shrinkage amount. In a multilayer coil component according to the present disclosure, a stress relaxation part overlapping with a maximum film thickness portion whose shrinkage amount is large is provided to relax inner stress in a stepwise structure, resulting in prevention of a crack.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: December 28, 2021
    Assignee: TDK CORPORATION
    Inventors: Yusuke Nagai, Takashi Suzuki, Hidekazu Sato, Takashi Endo, Kouichi Kakuda, Kunihiko Kawasaki, Shinichi Kondo, Yuya Ishima, Shinichi Sato, Masaki Takahashi
  • Publication number: 20210327606
    Abstract: 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: Application
    Filed: April 14, 2021
    Publication date: October 21, 2021
    Applicant: TDK CORPORATION
    Inventors: Yuya Ishima, Masaki Takahashi, Akira Suda, Takashi Suzuki, Hidenobu Umeda
  • Patent number: 11139112
    Abstract: An electronic component includes an element provided with a first recess, and a mounting conductor including a first conductor portion disposed in the first recess. The first conductor portion has a first face opposed to a bottom face of the first recess, a second face opposed to the first face, and a third face connecting the first face and the second face. The third face has a region overlapping with the second face as viewed from an opposing direction of the bottom face of the first recess and the first face.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: October 5, 2021
    Assignee: TDK CORPORATION
    Inventors: Yuya Ishima, Yasushi Matsuyama, Yuto Shiga, Shunji Aoki, Shinichi Kondo
  • Patent number: 10998129
    Abstract: A method for manufacturing a laminated coil component including an element and a conductor configuring a coil in the element includes a step of forming a conductor pattern including a configuration material of the conductor on a first base material by a photolithography method, a step of forming an element pattern including a configuration material of the element on a second base material by a photolithography method, the element pattern being formed such that a shape corresponding to a shape of the conductor pattern has been removed, a step of laminating the conductor pattern and the element pattern in a predetermined direction by repeatedly transferring the conductor pattern and the element pattern onto a support, and a step of performing thermal treatment for a laminate obtained by the step of laminating.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: May 4, 2021
    Assignee: TDK CORPORATION
    Inventors: Yuya Ishima, Shinichi Kondo, Shunji Aoki, Yasushi Matsuyama, Yusuke Onezawa, Hajime Azuma
  • Publication number: 20210074474
    Abstract: 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: Application
    Filed: September 2, 2020
    Publication date: March 11, 2021
    Applicant: TDK CORPORATION
    Inventors: Yuya ISHIMA, Shinichi KONDO, Kosuke ITO, Shingo HATTORI
  • Publication number: 20210065975
    Abstract: 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: Application
    Filed: August 27, 2020
    Publication date: March 4, 2021
    Applicant: TDK CORPORATION
    Inventors: Yuya ISHIMA, Shinichi KONDO, Kosuke ITO, Shingo HATTORI, Takashi SUZUKI, Hidenobu UMEDA
  • Publication number: 20210012947
    Abstract: 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: Application
    Filed: July 7, 2020
    Publication date: January 14, 2021
    Applicant: TDK CORPORATION
    Inventors: Yuya ISHIMA, Shinichi KONDO, Kosuke ITO, Shingo HATTORI, Kazuya TOBITA, Noriaki HAMACHI, Atsushi MORIYA
  • Patent number: 10886057
    Abstract: An electronic component includes an element body, a conductor, and a plated electrode layer. The element body includes a first outer surface provided with a first recess. The conductor includes a first conductor portion. The first conductor portion is disposed in the first recess and includes a first face opposed to a bottom face of the first recess and a second face opposed to the first face. The plated electrode layer includes a first plating portion covering the second face. The second face includes a first slope inclined with respect to the first outer surface in such a way as to be recessed toward the bottom face side of the first recess from the first outer surface.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: January 5, 2021
    Assignee: TDK CORPORATION
    Inventors: Shunji Aoki, Yuya Ishima, Makoto Takahashi, Shougo Okamoto, Takafumi Takahashi, Hajime Kato, Yuto Shiga
  • Patent number: 10886063
    Abstract: An electronic-component manufacturing method is for simultaneously manufacturing a plurality of electronic components each including an element body and a conductor. The electronic-component manufacturing method includes the steps of forming laminates to be the plurality of electronic components on a plurality of regions set apart from each other on a surface of a first substrate, releasing the laminates from the plurality of regions, and performing heat treatment to the laminates. The forming the laminates includes a first step of forming element-body patterns on the plurality of regions and a second step of forming conductor patterns on the plurality of regions. The element-body patterns contain a constituent material of the element bodies and are patterned for the plurality of regions. The conductor patterns contain a constituent material of the conductors and are patterned for the plurality of regions.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: January 5, 2021
    Assignee: TDK CORPORATION
    Inventors: Yuya Ishima, Shunji Aoki, Shinichi Kondo, Yasushi Matsuyama, Hajime Azuma, Yusuke Onezawa
  • Patent number: 10847301
    Abstract: An electronic component includes an element body, a conductor provided on the element body, a plating layer provided on the conductor, and a glass layer provided on the conductor along an outer edge of the plating layer.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: November 24, 2020
    Assignee: TDK CORPORATION
    Inventors: Shunji Aoki, Yuya Ishima, Masaki Takahashi, Yuki Okazaki, Takeshi Sasaki
  • Publication number: 20200350107
    Abstract: A laminated electronic component includes an element body and a pair of conductors. The element body is formed by laminating a plurality of element-body layers in a first direction. The pair of conductors is formed by laminating a plurality of conductor layers in the first direction. The pair of conductors is provided to the element body in such a way as to be separated from each other in a second direction orthogonal to the first direction. At a cross section orthogonal to the first direction, the pair of conductors has an uneven portion and the element body has an uneven portion engaged with the uneven portion of the pair of conductors.
    Type: Application
    Filed: July 20, 2020
    Publication date: November 5, 2020
    Applicant: TDK CORPORATION
    Inventors: Shunji AOKI, Yuya ISHIMA, Hajime KATO, Yuto SHIGA, Kazuya TOBITA, Youichi KAZUTA, Satoru OKAMOTO
  • Patent number: 10825596
    Abstract: A laminated electronic component includes an element body and a pair of conductors. The element body is formed by laminating a plurality of element-body layers in a first direction. The pair of conductors is formed by laminating a plurality of conductor layers in the first direction. The pair of conductors is provided to the element body in such a way as to be separated from each other in a second direction orthogonal to the first direction. At a cross section orthogonal to the first direction, the pair of conductors has an uneven portion and the element body has an uneven portion engaged with the uneven portion of the pair of conductors.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: November 3, 2020
    Assignee: TDK CORPORATION
    Inventors: Shunji Aoki, Yuya Ishima, Hajime Kato, Yuto Shiga, Kazuya Tobita, Youichi Kazuta, Satoru Okamoto
  • Patent number: 10818422
    Abstract: In a multilayer coil component, an end of a lower coil layer and an end of a connecting part are directly overlapped, and the end of the lower coil layer includes a contact edge positioned on a side of the connecting part and being in contact with the connecting part and a non-contact edge positioned on a side opposite to the connecting part and not being in contact with the connecting part. Then, the contact edge and the non-contact edge are not overlapped when viewed from a laminated direction. Consequently, a propagation distance of a crack becomes longer as compared with the case where an end face is parallel to the laminated direction, effectively suppressing advance of the crack. Suppressed advance of a crack in this manner makes the multilayer coil component provide a high component strength as a whole.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: October 27, 2020
    Assignee: TDK CORPORATION
    Inventors: Yuusuke Nagai, Takashi Suzuki, Kouichi Kakuda, Kunihiko Kawasaki, Shinichi Kondo, Yuya Ishima, Shinichi Sato, Masaki Takahashi, Takashi Endo
  • Publication number: 20200234865
    Abstract: A laminated electronic component includes an element body and a pair of conductors. The element body is formed by laminating a plurality of element-body layers in a first direction. The pair of conductors is formed by laminating a plurality of conductor layers in the first direction. The pair of conductors is provided to the element body in such a way as to be separated from each other in a second direction orthogonal to the first direction. At a cross section orthogonal to the first direction, the pair of conductors has an uneven portion and the element body has an uneven portion engaged with the uneven portion of the pair of conductors.
    Type: Application
    Filed: April 6, 2020
    Publication date: July 23, 2020
    Applicant: TDK CORPORATION
    Inventors: Shunji AOKI, Yuya ISHIMA, Hajime KATO, Yuto SHIGA, Kazuya TOBITA, Youichi KAZUTA, Satoru OKAMOTO
  • Patent number: 10650950
    Abstract: A laminated electronic component includes an element body and a pair of conductors. The element body is formed by laminating a plurality of element-body layers in a first direction. The pair of conductors is formed by laminating a plurality of conductor layers in the first direction. The pair of conductors is provided to the element body in such a way as to be separated from each other in a second direction orthogonal to the first direction. At a cross section orthogonal to the first direction, the pair of conductors has an uneven portion and the element body has an uneven portion engaged with the uneven portion of the pair of conductors.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: May 12, 2020
    Assignee: TDK CORPORATION
    Inventors: Shunji Aoki, Yuya Ishima, Hajime Kato, Yuto Shiga, Kazuya Tobita, Youichi Kazuta, Satoru Okamoto
  • Patent number: 10607756
    Abstract: A soft magnetic metal powder includes a plurality of soft magnetic metal grains composed of an Fe—Si based alloy. A content of P in the Fe—Si based alloy is 110 to 650 ppm provided that a total content of Fe and Si is 100 mass %. A soft magnetic metal fired body includes soft magnetic metal fired grains composed of an Fe—Si based alloy. A content of P in the Fe—Si based alloy is 110 to 650 ppm provided that a total content of Fe and Si is 100 mass %.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: March 31, 2020
    Assignee: TDK CORPORATION
    Inventors: Takashi Suzuki, Hidekazu Sato, Yuusuke Nagai, Kouichi Kakuda, Kunihiko Kawasaki, Shinichi Kondo, Yuya Ishima, Shinichi Sato, Masaki Takahashi, Takashi Endo
  • Patent number: 10600540
    Abstract: A laminated coil component includes an element assembly formed by laminating a plurality of insulation layers and a coil unit formed inside the element assembly by a plurality of coil conductors. The element assembly includes a coil unit arrangement layer which has the coil unit arranged therein, and at least a pair of shape retention layers which is provided to have the coil unit arrangement layer interposed therebetween to retain a shape of the coil unit arrangement layer. The shape retention layer is made from glass-ceramic containing SrO, and a softening point of the coil unit arrangement layer is lower than a softening point or a melting point of the shape retention layer.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: March 24, 2020
    Assignee: TDK CORPORATION
    Inventors: Takahiro Sato, Yuya Ishima, Shusaku Umemoto, Takashi Suzuki, Satoru Okamoto, Yoshikazu Sakaguchi
  • Patent number: 10388448
    Abstract: A multilayer coil component includes an element body including soft magnetic metal powders and a coil disposed in the element body. The coil includes a plurality of internal conductors electrically connected to each other. The plurality of internal conductors are separated from each other in a first direction and are adjacent to each other in the first direction. An average particle diameter of the soft magnetic metal powders located at an inner side of the coil when viewing from the first direction is larger than an average particle diameter of the soft magnetic metal powders located between the internal conductors adjacent to each other in the first direction.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: August 20, 2019
    Assignee: TDK CORPORATION
    Inventors: Yuusuke Nagai, Takashi Suzuki, Kouichi Kakuda, Kunihiko Kawasaki, Shinichi Kondo, Yuya Ishima, Shinichi Sato, Masaki Takahashi, Takashi Endo
  • Publication number: 20190198210
    Abstract: The present invention provides a multilayer coil electronic component having improved inductance L, Q, and strength. The multilayer coil electronic component has an element in which a coil conductor and a magnetic element body are stacked. The magnetic element body includes soft magnetic metal particles and a resin. The resin fills a space between the soft magnetic metal particles. Each of soft magnetic metal particles has a soft magnetic metal particle core and an oxide film covering the soft magnetic metal particle core. A layer of the oxide film contacting the soft magnetic metal particle core is made of an oxide including Si.
    Type: Application
    Filed: November 23, 2018
    Publication date: June 27, 2019
    Applicant: TDK CORPORATION
    Inventors: Takashi SUZUKI, Hidekazu SATO, Yusuke NAGAI, Kouichi KAKUDA, Kunihiko KAWASAKI, Shinichi KONDO, Yuya ISHIMA, Shinichi SATO, Masaki TAKAHASHI, Takashi ENDO