Patents by Inventor Eiji ISO

Eiji ISO 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: 11919084
    Abstract: An electronic component includes an element body made of a composite material of a resin material and metal powder. A plurality of particles of the metal powder are exposed from the resin material and make contact with one another on the outer surface of the element.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: March 5, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Keita Muneuchi, Eiji Iso, Isao Ida, Kenichi Araki, Noriko Shimizu, Takashi Tomohiro
  • Publication number: 20240071672
    Abstract: An electronic component that includes a base body and insulating film covering an outer surface of the base body. The outer surface has a first boundary surface including a curved surface that is present at a boundary between a first surface and a second surface of the outer surface. An inner angle of the base body among angles formed by the first surface and the second surface is less than 180 degrees. The average value of a thickness dimension from the first boundary surface to the surface of an insulating film portion covering the first boundary surface is greater than the average value from the first surface to the surface of an insulating film portion covering the first surface in the thickness direction.
    Type: Application
    Filed: November 7, 2023
    Publication date: February 29, 2024
    Inventors: Noriyuki OOKAWA, Eiji ISO
  • Publication number: 20230191484
    Abstract: A coil component includes a body that is made of a composite material containing a resin material and metal powder, a coil conductor which is provided in the body and an end portion of which is exposed on an end face of the body, and a metal film that is provided on an outer surface of the body and that is electrically connected to the coil conductor on the end face in the outer surface. The outer surface of the body has a contact area that is in contact with the metal film. Multiple particles of the metal powder escape from the resin material and are in contact with each other in the contact area of the body.
    Type: Application
    Filed: February 14, 2023
    Publication date: June 22, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takashi TOMOHIRO, Noriko SHIMIZU, Kenichi ARAKI, Eiji ISO, Keita MUNEUCHI, Isao IDA
  • Patent number: 11615903
    Abstract: A coil component includes a body that is made of a composite material containing a resin material and metal powder, a coil conductor which is provided in the body and an end portion of which is exposed on an end face of the body, and a metal film that is provided on an outer surface of the body and that is electrically connected to the coil conductor on the end face in the outer surface. The outer surface of the body has a contact area that is in contact with the metal film. Multiple particles of the metal powder escape from the resin material and are in contact with each other in the contact area of the body.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: March 28, 2023
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takashi Tomohiro, Noriko Shimizu, Kenichi Araki, Eiji Iso, Keita Muneuchi, Isao Ida
  • Publication number: 20230015749
    Abstract: A manufacturing method for an electronic component includes preparing a first composite magnetic section provided with a first composite magnetic layer and at least one marker layer disposed on the first composite magnetic layer; and preparing a second composite magnetic section provided with a second composite magnetic layer and at least one coil formed by winding a conductive wire and buried in the second composite magnetic layer with part of the coil being exposed. The manufacturing method further includes obtaining a multilayer body by disposing the first composite magnetic section so that a surface on the opposite side of the first composite magnetic section to a surface where the marker layer is disposed opposes a surface of the second composite magnetic section; and obtaining a molded body having a marker area formed with non-conductive particles pressed into the first composite magnetic layer.
    Type: Application
    Filed: September 26, 2022
    Publication date: January 19, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Eiji ISO, Isao IDA, Hiroshi OKUIZUMI, Takao KAWACHI
  • Publication number: 20220392687
    Abstract: An electronic component includes an element body made of a composite material of a resin material and metal powder.
    Type: Application
    Filed: August 18, 2022
    Publication date: December 8, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Keita MUNEUCHI, Eiji ISO, Isao IDA, Kenichi ARAKI, Noriko SHIMIZU, Takashi TOMOHIRO
  • Patent number: 11488753
    Abstract: A manufacturing method for an electronic component includes preparing a first composite magnetic section provided with a first composite magnetic layer and at least one marker layer disposed on the first composite magnetic layer; and preparing a second composite magnetic section provided with a second composite magnetic layer and at least one coil formed by winding a conductive wire and buried in the second composite magnetic layer with part of the coil being exposed. The manufacturing method further includes obtaining a multilayer body by disposing the first composite magnetic section so that a surface on the opposite side of the first composite magnetic section to a surface where the marker layer is disposed opposes a surface of the second composite magnetic section; and obtaining a molded body having a marker area formed with non-conductive particles pressed into the first composite magnetic layer.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: November 1, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Eiji Iso, Isao Ida, Hiroshi Okuizumi, Takao Kawachi
  • Patent number: 11488760
    Abstract: An electronic component includes an element body made of a composite material of a resin material and metal powder. A plurality of particles of the metal powder are exposed from the resin material and make contact with one another on the outer surface of the element.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: November 1, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Keita Muneuchi, Eiji Iso, Isao Ida, Kenichi Araki, Noriko Shimizu, Takashi Tomohiro
  • Publication number: 20220328240
    Abstract: An inductor in which the external electrode is constituted by a conductive resin layer formed on a surface of a core effectively prevents peeling between the core and the external electrode. The inductor includes a core containing magnetic particles and a resin, a conductor embedded in the core, a conductive resin layer disposed on a surface of the core so as to be in contact with an end portion of the conductor exposed from the core, and a plating layer formed on the conductive resin layer. The plating layer is formed so as to extend to the surface of the core beyond a range in which the conductive resin layer is disposed.
    Type: Application
    Filed: March 28, 2022
    Publication date: October 13, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Masato Koike, Hiroaki Takashima, Eiji Iso
  • Publication number: 20220108824
    Abstract: An inductor includes a body containing soft magnetic powder and resin, a coil embedded in the body, outer electrodes on the body, and a protective film on the surface of the body. The protective film has a thickness of 10 ?m or more and contains silica particles and resin. In the protective film, the silica particles have an average diameter of 15 nm to 75 nm, and the percentage by weight of the silica particles to the resin is between 150% and 250%.
    Type: Application
    Filed: October 5, 2021
    Publication date: April 7, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Eiji ISO, Yuki KITASHIMA, Yoshiharu SATOU, Noriyuki OOKAWA, Hiroshi MARUSAWA
  • Patent number: 11170935
    Abstract: A manufacturing method for an electronic component includes: a step of forming an insulating layer on an outer electrode body so as to cover the outer electrode body, the outer electrode body being formed on a chip element which forms the electronic component; and a step of removing the insulating layer in a predetermined region of the outer electrode body by applying laser light to the insulating layer in the predetermined region so as to expose the predetermined region. The insulating layer has a higher absorption coefficient for the laser light than a material forming a surface of the outer electrode body.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: November 9, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Eiji Iso, Shinichiro Izumi, Yoshifumi Maki, Hirotsugu Tomioka, Tsuyoshi Kawada
  • Patent number: 10879005
    Abstract: In electronic devices, as a result of miniaturization, the distance between a mounting board and an upper board or a shield case and the like, or the distance between the mounting board and other electronic components mounted adjacent thereto has become smaller. An electronic component is provided with: an element body internally containing a circuit element; and a terminal formed on the element body. The terminal is formed over an end surface of the element body and a surface adjacent to the end surface. An insulating film covering the terminal is formed on the element body. The terminal is exposed from the insulating film at least at a mounting surface of the element body, and a plating film containing tin is formed on a portion of the terminal exposed from the insulating film.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: December 29, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yoshifumi Maki, Hirotsugu Tomioka, Shinichiro Izumi, Eiji Iso
  • Patent number: 10692644
    Abstract: An electronic component includes at least one coil including a winding part and lead-out end parts at both ends thereof, and a magnetic molded body having a mounting surface with the coil incorporated therein. The lead-out end parts are led out toward the mounting surface such that end surfaces of the lead-out end parts are arranged on the same plane as the mounting surface.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: June 23, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Keita Muneuchi, Eiji Iso
  • Publication number: 20190115127
    Abstract: A manufacturing method for an electronic component includes preparing a first composite magnetic section provided with a first composite magnetic layer and at least one marker layer disposed on the first composite magnetic layer; and preparing a second composite magnetic section provided with a second composite magnetic layer and at least one coil formed by winding a conductive wire and buried in the second composite magnetic layer with part of the coil being exposed. The manufacturing method further includes obtaining a multilayer body by disposing the first composite magnetic section so that a surface on the opposite side of the first composite magnetic section to a surface where the marker layer is disposed opposes a surface of the second composite magnetic section; and obtaining a molded body having a marker area formed with non-conductive particles pressed into the first composite magnetic layer.
    Type: Application
    Filed: October 3, 2018
    Publication date: April 18, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Eiji ISO, Isao IDA, Hiroshi OKUIZUMI, Takao KAWACHI
  • Publication number: 20180247747
    Abstract: A coil component includes a body that is made of a composite material containing a resin material and metal powder, a coil conductor which is provided in the body and an end portion of which is exposed on an end face of the body, and a metal film that is provided on an outer surface of the body and that is electrically connected to the coil conductor on the end face in the outer surface. The outer surface of the body has a contact area that is in contact with the metal film. Multiple particles of the metal powder escape from the resin material and are in contact with each other in the contact area of the body.
    Type: Application
    Filed: April 30, 2018
    Publication date: August 30, 2018
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takashi TOMOHIRO, Noriko SHIMIZU, Kenichi ARAKI, Eiji ISO, Keita MUNEUCHI, Isao IDA
  • Publication number: 20180247764
    Abstract: An electronic component includes an element body made of a composite material of a resin material and metal powder.
    Type: Application
    Filed: April 30, 2018
    Publication date: August 30, 2018
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Keita MUNEUCHI, Eiji ISO, Isao IDA, Kenichi ARAKI, Noriko SHIMIZU, Takashi TOMOHIRO
  • Publication number: 20180182531
    Abstract: A surface-mount inductor includes a coil formed by winding a conductor, a molded body made of a sealing material containing a metal magnetic material and a resin with the coil enclosed therein, and an external terminal connected to the coil. The molded body has, in a surface perpendicular to a coil axis of the coil, a first region having a filling factor of the metal magnetic material lower than an average filling factor of the metal magnetic material in the whole of the molded body. The external terminal is disposed on a region at least including the first region.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 28, 2018
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Keita MUNEUCHI, Eiji ISO, Hideaki OOI
  • Publication number: 20180182533
    Abstract: An electronic component includes at least one coil including a winding part and lead-out end parts at both ends thereof, and a magnetic molded body having a mounting surface with the coil incorporated therein. The lead-out end parts are led out toward the mounting surface such that end surfaces of the lead-out end parts are arranged on the same plane as the mounting surface.
    Type: Application
    Filed: December 13, 2017
    Publication date: June 28, 2018
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Keita MUNEUCHI, Eiji ISO
  • Publication number: 20180182539
    Abstract: A surface-mount inductor includes a coil formed by winding a conductor, a molded body made of a sealing material containing a metal magnetic material and a resin with the coil enclosed therein, and an external terminal connected to the coil. The molded body has two parallel surfaces and has, in at least one of the surfaces, a first region having a filling factor of the metal magnetic material higher than an average filling factor of the metal magnetic material in the whole of the molded body. The external terminal is disposed on a region at least including the first region.
    Type: Application
    Filed: December 18, 2017
    Publication date: June 28, 2018
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Keita MUNEUCHI, Eiji ISO, Hideaki OOI
  • Publication number: 20170323725
    Abstract: A manufacturing method for an electronic component includes: a step of forming an insulating layer on an outer electrode body so as to cover the outer electrode body, the outer electrode body being formed on a chip element which forms the electronic component; and a step of removing the insulating layer in a predetermined region of the outer electrode body by applying laser light to the insulating layer in the predetermined region so as to expose the predetermined region. The insulating layer has a higher absorption coefficient for the laser light than a material forming a surface of the outer electrode body.
    Type: Application
    Filed: July 27, 2017
    Publication date: November 9, 2017
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Eiji ISO, Shinichiro IZUMI, Yoshifumi MAKI, Hirotsugu TOMIOKA, Tsuyoshi KAWADA