Patents by Inventor Manabu Ohta

Manabu Ohta 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: 11894177
    Abstract: In an electronic component, a terminal electrode has a thickest portion and a part thinner than the thickest portion. Accordingly, an increase in solder fillet forming region occurs when the electronic component is solder-mounted onto a predetermined mounting substrate. In the electronic component, mounting strength is improved as a result of the increase in solder fillet forming region. In addition, in the electronic component, the thickest portion overlaps a bump electrode in a direction orthogonal to the lower surface of an element body. Accordingly, the impact that is applied to the electronic component during the mounting onto the mounting substrate is reduced and the impact resistance of the electronic component is improved.
    Type: Grant
    Filed: March 9, 2023
    Date of Patent: February 6, 2024
    Assignee: TDK CORPORATION
    Inventors: Takahiro Kawahara, Manabu Ohta, Kenei Onuma, Yuuya Kaname, Ryo Fukuoka, Hokuto Eda, Masataro Saito, Kohei Takahashi
  • Patent number: 11894174
    Abstract: In a coil component, a height h1 of a pedestal portion of a resin wall corresponds to the height position of a step portion. In addition, a height of a seed portion corresponds to the plating start position at a time when a winding portion of a coil is plated and grown. The plating start position and the step portion are designed to be close to each other by the height h1 of the pedestal portion and the height h2 of the seed portion satisfying 0.3?h1/h2?10. Accordingly, although the coil component has a configuration in which the resin wall has the step portion, the inside of the step portion is sufficiently filled with a coil conductor, and thus deterioration of characteristics is suppressed.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: February 6, 2024
    Assignee: TDK CORPORATION
    Inventors: Hitoshi Ohkubo, Manabu Ohta, Ryo Fukuoka, Hironori Kimata
  • Patent number: 11810708
    Abstract: In an electronic component, a terminal electrode has a thickest portion and a part thinner than the thickest portion. Accordingly, an increase in solder fillet forming region occurs when the electronic component is solder-mounted onto a predetermined mounting substrate. In the electronic component, mounting strength is improved as a result of the increase in solder fillet forming region. In addition, in the electronic component, the thickest portion overlaps a bump electrode in a direction orthogonal to the lower surface of an element body. Accordingly, the impact that is applied to the electronic component during the mounting onto the mounting substrate is reduced and the impact resistance of the electronic component is improved.
    Type: Grant
    Filed: March 9, 2023
    Date of Patent: November 7, 2023
    Assignee: TDK CORPORATION
    Inventors: Takahiro Kawahara, Manabu Ohta, Kenei Onuma, Yuuya Kaname, Ryo Fukuoka, Hokuto Eda, Masataro Saito, Kohei Takahashi
  • Publication number: 20230215618
    Abstract: In an electronic component, a terminal electrode has a thickest portion and a part thinner than the thickest portion. Accordingly, an increase in solder fillet forming region occurs when the electronic component is solder-mounted onto a predetermined mounting substrate. In the electronic component, mounting strength is improved as a result of the increase in solder fillet forming region. In addition, in the electronic component, the thickest portion overlaps a bump electrode in a direction orthogonal to the lower surface of an element body. Accordingly, the impact that is applied to the electronic component during the mounting onto the mounting substrate is reduced and the impact resistance of the electronic component is improved.
    Type: Application
    Filed: March 9, 2023
    Publication date: July 6, 2023
    Applicant: TDK CORPORATION
    Inventors: Takahiro KAWAHARA, Manabu OHTA, Kenei ONUMA, Yuuya KANAME, Ryo FUKUOKA, Hokuto EDA, Masataro SAITO, Kohei TAKAHASHI
  • Publication number: 20230215617
    Abstract: In an electronic component, a terminal electrode has a thickest portion and a part thinner than the thickest portion. Accordingly, an increase in solder fillet forming region occurs when the electronic component is solder-mounted onto a predetermined mounting substrate. In the electronic component, mounting strength is improved as a result of the increase in solder fillet forming region. In addition, in the electronic component, the thickest portion overlaps a bump electrode in a direction orthogonal to the lower surface of an element body. Accordingly, the impact that is applied to the electronic component during the mounting onto the mounting substrate is reduced and the impact resistance of the electronic component is improved.
    Type: Application
    Filed: March 9, 2023
    Publication date: July 6, 2023
    Applicant: TDK CORPORATION
    Inventors: Takahiro KAWAHARA, Manabu OHTA, Kenei ONUMA, Yuuya KANAME, Ryo FUKUOKA, Hokuto EDA, Masataro SAITO, Kohei TAKAHASHI
  • Patent number: 11631529
    Abstract: In an electronic component, a terminal electrode has a thickest portion and a part thinner than the thickest portion. Accordingly, an increase in solder fillet forming region occurs when the electronic component is solder-mounted onto a predetermined mounting substrate. In the electronic component, mounting strength is improved as a result of the increase in solder fillet forming region. In addition, in the electronic component, the thickest portion overlaps a bump electrode in a direction orthogonal to the lower surface of an element body. Accordingly, the impact that is applied to the electronic component during the mounting onto the mounting substrate is reduced and the impact resistance of the electronic component is improved.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: April 18, 2023
    Assignee: TDK CORPORATION
    Inventors: Takahiro Kawahara, Manabu Ohta, Kenei Onuma, Yuuya Kaname, Ryo Fukuoka, Hokuto Eda, Masataro Saito, Kohei Takahashi
  • Publication number: 20230066655
    Abstract: In the coil component, since the contact area between the external terminal electrode and the element body is increased by the protrusion of the external terminal electrode, the external terminal electrode and the element body are more closely attached to each other. Therefore, the attachment strength between the external terminal electrode and the element body can be improved. Hence, it is possible to suppress peeling of the external terminal electrode from the element body.
    Type: Application
    Filed: August 22, 2022
    Publication date: March 2, 2023
    Applicant: TDK CORPORATION
    Inventors: Hokuto EDA, Hitoshi OHKUBO, Masazumi ARATA, Masataro SAITO, Kohei TAKAHASHI, Takamasa IWASAKI, Manabu OHTA, Kenei ONUMA
  • Patent number: 11557427
    Abstract: A coil component in which a change in thicknesses of the winding part is prevented is provided. According to the coil component, since each of a pair of neighboring resin walls and a seed part between the pair of resin walls are separated by a predetermined distance, a plating part grown on the seed part is easy to grow uniformly between the pair of neighboring resin walls. For this reason, the winding part whose surface is gentle and in which a change in thickness is prevented is obtained by plating growth.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: January 17, 2023
    Assignee: TDK CORPORATION
    Inventors: Hitoshi Ohkubo, Masazumi Arata, Manabu Ohta, Yuuya Kaname, Yoshihiro Maeda, Takahiro Kawahara, Hokuto Eda, Shigeki Sato
  • Publication number: 20220415566
    Abstract: An electronic component preventing peeling of an external terminal is provided. Since each of the external terminal electrodes on the upper face has a U-shaped outline, stress concentration is less likely to occur at an inner end portion than in the external terminal electrode having a corner at the inner end portion. Therefore, for example, even when an impact is applied, a situation in which the external terminal electrode peels off from the upper face due to stress concentration is prevented.
    Type: Application
    Filed: June 21, 2022
    Publication date: December 29, 2022
    Applicant: TDK CORPORATION
    Inventors: Hokuto EDA, Hitoshi OHKUBO, Masazumi ARATA, Masataro SAITO, Kohei TAKAHASHI, Takamasa IWASAKI, Manabu OHTA, Kenei ONUMA
  • Publication number: 20210225588
    Abstract: In a coil component and a method for manufacturing the same, a winding part of a coil is grown by plating so as to extend between resin walls of a resin body provided before the coil is grown by plating. The resin wall is interposed between adjacent turns of the winding part of the coil during the plating growth, and therefore contact between adjacent turns of the winding part of the coil cannot occur.
    Type: Application
    Filed: April 7, 2021
    Publication date: July 22, 2021
    Applicant: TDK CORPORATION
    Inventors: Hitoshi OHKUBO, Masazumi ARATA, Manabu OHTA, Shou KAWADAHARA, Yoshihiro MAEDA, Takahiro KAWAHARA, Hokuto EDA, Shigeki SATO
  • Publication number: 20210151234
    Abstract: In a coil component, a height h1 of a pedestal portion of a resin wall corresponds to the height position of a step portion. In addition, a height of a seed portion corresponds to the plating start position at a time when a winding portion of a coil is plated and grown. The plating start position and the step portion are designed to be close to each other by the height h1 of the pedestal portion and the height h2 of the seed portion satisfying 0.3?h1/h2?10. Accordingly, although the coil component has a configuration in which the resin wall has the step portion, the inside of the step portion is sufficiently filled with a coil conductor, and thus deterioration of characteristics is suppressed.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 20, 2021
    Applicant: TDK CORPORATION
    Inventors: Hitoshi OHKUBO, Manabu OHTA, Ryo FUKUOKA, Hironori KIMATA
  • Patent number: 10998130
    Abstract: In a coil component and a method for manufacturing the same, a winding part of a coil is grown by plating so as to extend between resin walls of a resin body provided before the coil is grown by plating. The resin wall is interposed between adjacent turns of the winding part of the coil during the plating growth, and therefore contact between adjacent turns of the winding part of the coil cannot occur.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: May 4, 2021
    Assignee: TDK CORPORATION
    Inventors: Hitoshi Ohkubo, Masazumi Arata, Manabu Ohta, Shou Kawadahara, Yoshihiro Maeda, Takahiro Kawahara, Hokuto Eda, Shigeki Sato
  • Publication number: 20200303116
    Abstract: In an electronic component, a terminal electrode has a thickest portion and a part thinner than the thickest portion. Accordingly, an increase in solder fillet forming region occurs when the electronic component is solder-mounted onto a predetermined mounting substrate. In the electronic component, mounting strength is improved as a result of the increase in solder fillet forming region. In addition, in the electronic component, the thickest portion overlaps a bump electrode in a direction orthogonal to the lower surface of an element body. Accordingly, the impact that is applied to the electronic component during the mounting onto the mounting substrate is reduced and the impact resistance of the electronic component is improved.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 24, 2020
    Applicant: TDK CORPORATION
    Inventors: Takahiro KAWAHARA, Manabu OHTA, Kenei ONUMA, Yuuya KANAME, Ryo FUKUOKA, Hokuto EDA, Masataro SAITO, Kohei TAKAHASHI
  • Publication number: 20200143980
    Abstract: A coil component in which a change in thicknesses of the winding part is prevented is provided. According to the coil component, since each of a pair of neighboring resin walls and a seed part between the pair of resin walls are separated by a predetermined distance, a plating part grown on the seed part is easy to grow uniformly between the pair of neighboring resin walls. For this reason, the winding part whose surface is gentle and in which a change in thickness is prevented is obtained by plating growth.
    Type: Application
    Filed: January 3, 2020
    Publication date: May 7, 2020
    Applicant: TDK CORPORATION
    Inventors: Hitoshi OHKUBO, Masazumi ARATA, Manabu OHTA, Yuuya KANAME, Yoshihiro MAEDA, Takahiro KAWAHARA, Hokuto EDA, Shigeki SATO
  • Patent number: 10559417
    Abstract: A coil component in which a change in thicknesses of the winding part is prevented is provided. According to the coil component, since each of a pair of neighboring resin walls and a seed part between the pair of resin walls are separated by a predetermined distance, a plating part grown on the seed part is easy to grow uniformly between the pair of neighboring resin walls. For this reason, the winding part whose surface is gentle and in which a change in thickness is prevented is obtained by plating growth.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: February 11, 2020
    Assignee: TDK CORPORATION
    Inventors: Hitoshi Ohkubo, Masazumi Arata, Manabu Ohta, Yuuya Kaname, Yoshihiro Maeda, Takahiro Kawahara, Hokuto Eda, Shigeki Sato
  • Publication number: 20190385792
    Abstract: In a coil component and a method for manufacturing the same, a winding part of a coil is grown by plating so as to extend between resin walls of a resin body provided before the coil is grown by plating. The resin wall is interposed between adjacent turns of the winding part of the coil during the plating growth, and therefore contact between adjacent turns of the winding part of the coil cannot occur.
    Type: Application
    Filed: August 29, 2019
    Publication date: December 19, 2019
    Inventors: Hitoshi OHKUBO, Masazumi ARATA, Manabu OHTA, Shou KAWADAHARA, Yoshihiro MAEDA, Takahiro KAWAHARA, Hokuto EDA, Shigeki SATO
  • Patent number: 10468184
    Abstract: In a coil component 1 and a method for manufacturing the same, a winding part of a coil is grown by plating so as to extend between resin walls of a resin body provided before the coil is grown by plating. The resin wall is interposed between adjacent turns of the winding part of the coil during the plating growth, and therefore contact between adjacent turns of the winding part of the coil cannot occur.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: November 5, 2019
    Assignee: TDK CORPORATION
    Inventors: Hitoshi Ohkubo, Masazumi Arata, Manabu Ohta, Shou Kawadahara, Yoshihiro Maeda, Takahiro Kawahara, Hokuto Eda, Shigeki Sato
  • Patent number: 10210974
    Abstract: In a coil component (planar coil element), at least part of a third metal magnetic powder constituting a metal magnetic powder and having a minimum average grain diameter is uncoated, which suppresses a reduction in magnetic permeability. On the other hand, the remaining metal powders are coated with glass, which improves the insulating properties of a metal magnetic powder-containing resin and reduces core loss.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: February 19, 2019
    Assignee: TDK CORPORATION
    Inventors: Hitoshi Ohkubo, Masazumi Arata, Manabu Ohta, Shou Kawadahara, Yoshihiro Maeda, Takahiro Kawahara, Hokuto Eda, Shigeki Sato
  • Patent number: 10147540
    Abstract: In a planar coil element and a method for producing the same, a metal magnetic powder-containing resin containing an oblate or needle-like first metal magnetic powder contains a second metal magnetic powder having an average particle size (1 ?m) smaller than that (32 ?m) of the first metal magnetic powder, which significantly reduces the viscosity of the metal magnetic powder-containing resin. Therefore, the metal magnetic powder-containing resin is easy to handle when applied to enclose a coil unit, which makes it easy to produce the planar coil element.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: December 4, 2018
    Assignee: TDK CORPORATION
    Inventors: Kyohei Tonoyama, Makoto Morita, Tomokazu Ito, Hitoshi Ohkubo, Manabu Ohta, Yoshihiro Maeda, Yuuya Kaname, Hideharu Moro
  • Publication number: 20160351316
    Abstract: A coil component in which a change in thicknesses of the winding part is prevented is provided. According to the coil component, since each of a pair of neighboring resin walls and a seed part between the pair of resin walls are separated by a predetermined distance, a plating part grown on the seed part is easy to grow uniformly between the pair of neighboring resin walls. For this reason, the winding part whose surface is gentle and in which a change in thickness is prevented is obtained by plating growth.
    Type: Application
    Filed: May 27, 2016
    Publication date: December 1, 2016
    Applicant: TDK CORPORATION
    Inventors: Hitoshi OHKUBO, Masazumi ARATA, Manabu OHTA, Yuuya KANAME, Yoshihiro MAEDA, Takahiro KAWAHARA, Hokuto EDA, Shigeki SATO