Patents by Inventor Koichi Yamaguchi

Koichi Yamaguchi 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: 11942255
    Abstract: An inductor component includes an element body including a magnetic layer containing a resin and a magnetic powder; a coil wiring line arranged inside the element body; and an insulating coating film covering the coil wiring line and not including a magnetic material. In a cross section perpendicular to an extension direction of the coil wiring line, a top surface thickness of a part of the insulating coating film covering the top surface of the coil wiring line and a side surface thickness of parts of the insulating coating film covering side surfaces of the coil wiring line are less than or equal to 10 ?m, and a corner thickness of parts of the insulating coating film that cover corners of the coil wiring line interposed between the top surface and the side surfaces is at least half of the top surface thickness and/or the side surface thickness.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: March 26, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Ryuichiro Tominaga, Koichi Yamaguchi, Akinori Hamada, Isamu Miyake, Shinya Hirai
  • Patent number: 11742127
    Abstract: An inductor component includes a base body, a first coil line and a second coil line, a first substantially columnar line and a second substantially columnar line, and a third substantially columnar line and a fourth substantially columnar line. The first substantially columnar line is located closer to the third substantially columnar line than the fourth substantially columnar line. A minimum distance X1 between the first substantially columnar line and the third substantially columnar line is shorter than a minimum distance Y between a first portion of the first coil line and a second portion of the second coil line.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: August 29, 2023
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Isamu Miyake, Shinya Hirai, Akinori Hamada, Ryuichiro Tominaga, Koichi Yamaguchi
  • Patent number: 11682517
    Abstract: An inductor component comprises an element body; first and second inductors in the body; first and second columnar wirings in the body with end surfaces exposed from a first principal surface of the body and electrically connected to the first inductor; third and fourth columnar wirings in the body with end surfaces exposed from the first principal surface and electrically connected to the second inductor; first through fourth external terminals contacting the end surfaces of the first through fourth columnar wirings, respectively; and an insulating film on the first principal surface covering a portion of the end surface of the first and third columnar wiring not contacting the first and third terminals, respectively. The first terminal is closer to the third terminal than the fourth terminal, and a shortest distance between the first and third terminals is longer than a shortest distance between the first and third columnar wirings.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: June 20, 2023
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akinori Hamada, Hayami Kudo, Koichi Yamaguchi, Yoshimasa Yoshioka
  • Publication number: 20230045921
    Abstract: A curable perfluoropolyether adhesive composition containing the following components (A) to (C): (A) 100 parts by mass of a linear perfluoropolyether compound having at least two alkenyl groups per molecule and having a perfluoropolyether structure containing a repeating unit represented by —CaF2aO— in a main chain, “a” being an integer of 1 to 6; (B) an effective curing amount of an organosilicon compound having at least two silicon-bonded hydrogen atoms per molecule; and (C) a catalytic amount of a hydrosilylation-reaction catalyst, where a cured product of the curable perfluoropolyether adhesive composition is an adhesive having adhesion of less than 0.5 N/25 mm.
    Type: Application
    Filed: November 26, 2020
    Publication date: February 16, 2023
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroyuki YASUDA, Koichi YAMAGUCHI
  • Publication number: 20230015835
    Abstract: A curable perfluoropolyether adhesive composition containing: (A) 100 parts by mass of a linear perfluoropolyether compound having at least two alkenyl groups per molecule and having a perfluoropolyether structure containing a repeating unit represented by -CaF2aO- in a main chain; (B) an organosilicon compound having at least two silicon-bonded hydrogen atoms per molecule; (C) a hydrosilylation-reaction catalyst; (D) 0.05 to 5 parts by mass of an organosilicon compound, other than the component (B), having per molecule any two or more selected from a silicon-bonded hydrogen atom, an epoxy group bonded to a silicon atom via a carbon atom or via a carbon atom and an oxygen atom, and a trialkoxysilyl group bonded to a silicon atom via a carbon atom or via a carbon atom and an oxygen atom.
    Type: Application
    Filed: November 25, 2020
    Publication date: January 19, 2023
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroyuki YASUDA, Koichi YAMAGUCHI
  • Patent number: 11437182
    Abstract: An electronic component comprising a coil component having an element body containing ceramic, a coil disposed in the element body, and an external electrode disposed in the element body and electrically connected to the coil; and a mold resin sealing the coil component. The electronic component further comprises an electrode film in contact with an outer surface of the mold resin; and a connection conductor disposed in the mold resin and electrically connecting the external electrode and the electrode film.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: September 6, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Koichi Yamaguchi, Koshi Himeda
  • Patent number: 11424062
    Abstract: A flexible inductor mounted on a flexible substrate can be deformed while following deflection of the flexible substrate over time, and has high resistance to drop impact. The flexible inductor includes a coil substrate having a spiral conductor on at least one of upper and lower surfaces, and first and second magnetic sheets laminated on the upper and lower surfaces, respectively. First and second outer electrodes are provided in a peripheral edge portion of the lower surface. The first and second electrodes make direct contact with the lower surface, and are electrically connected to outermost and innermost end portions, respectively, of the spiral conductor. The second magnetic sheet is laminated on the lower surface other than portions corresponding to the first and second outer electrodes. Thicknesses of the first and second outer electrodes are equal to or larger than a thickness of the second magnetic sheet.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: August 23, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Koichi Yamaguchi
  • Patent number: 11282630
    Abstract: A common mode choke coil includes a body, a first spiral conductor, a second spiral conductor, a first extension conductor, and a second extension conductor. The thickness of the first extension conductor is equal to or less than (thickness of the first spiral conductor)/(winding number of the first spiral conductor), and the width of the first extension conductor is equal to or more than (width of the first spiral conductor)×(thickness of the first spiral conductor)/(thickness of the first extension conductor). The thickness of the second extension conductor is equal to or less than (thickness of the second spiral conductor)/(winding number of the second spiral conductor), and the width of the second extension conductor is equal to or more than (width of the second spiral conductor)×(thickness of the second spiral conductor)/(thickness of the second extension conductor).
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: March 22, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Koichi Yamaguchi, Masashi Hattori
  • Publication number: 20210238453
    Abstract: A release film for pressure-sensitive silicone adhesives which comprises: any of various bases; a primer layer (first layer) disposed on at least one surface of the base, the primer layer having a specific thickness and comprising as a main component an organosilicon compound having a plurality of silanol groups in the molecule; and a release layer (second layer) disposed on the outer surface of the primer layer, the release layer having a specific thickness and comprising as a main component a cured object obtained from a hydrolyzable fluorinated compound. A release coating film having excellent releasing properties can be stably and easily imparted to various bases, and the primer layer and the release layer can be formed even by room-temperature (25° C.) application.
    Type: Application
    Filed: April 4, 2019
    Publication date: August 5, 2021
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Koichi YAMAGUCHI, Yuji YAMANE
  • Patent number: 11043323
    Abstract: First and second coils are disposed coaxially with a gap provided therebetween and are configured to mutually cancel out magnetic fields provided thereby. A receptacle portion that defines a space traversing at least a portion of a magnetic flux produced by the coils is provided, and a magnetic powder is contained in the receptacle portion so as to occupy a portion of the space. The magnetic powder moves within the space, and this movement produces a change in the magnetic flux. This change in the magnetic flux appears in the form of a change in the inductance value.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: June 22, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Koichi Yamaguchi
  • Publication number: 20210137078
    Abstract: Provided are a livestock sensor device, a livestock astasia inference method, a livestock astasia inference program, and a livestock management system that are capable of preventing damage to stockbreeders. According to an embodiment of the present technology, there is provided a livestock sensor device including a postural-state determination unit, a state inference unit, a transmission unit, and a casing. The postural-state determination unit determines in which of a prostrate state and a non-prostrate state a livestock animal has been on a basis of output values from an acceleration sensor. The state inference unit infers whether or not the livestock animal has developed astasia on a basis of a duration of the prostrate state. The transmission unit transmits, to a server, an astasia-notification data item indicating that an inference that the livestock animal has developed the astasia is made when the inference that the livestock animal has developed the astasia is made.
    Type: Application
    Filed: July 10, 2018
    Publication date: May 13, 2021
    Inventors: HIDETATSU YAMAMOTO, SEIJI OHISHI, HIDETOSHI ISAWA, KAZUHIKO TSUJI, NAOKI TAMAI, HIDEAKI KAMEI, YOSHINORI USAMI, TAKESHI NEGORO, KOICHI YAMAGUCHI, KAZUYA TERASAKI, OSAMU MIKI, KENJI SASAKI, TOMOYA IMAMURA, MAMI MAMIYA
  • Publication number: 20210090781
    Abstract: An inductor component includes an element body including a magnetic layer containing a resin and a magnetic powder; a coil wiring line arranged inside the element body; and an insulating coating film covering the coil wiring line and not including a magnetic material. In a cross section perpendicular to an extension direction of the coil wiring line, a top surface thickness of a part of the insulating coating film covering the top surface of the coil wiring line and a side surface thickness of parts of the insulating coating film covering side surfaces of the coil wiring line are less than or equal to 10 ?m, and a corner thickness of parts of the insulating coating film that cover corners of the coil wiring line interposed between the top surface and the side surfaces is at least half of the top surface thickness and/or the side surface thickness.
    Type: Application
    Filed: August 25, 2020
    Publication date: March 25, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Ryuichiro TOMINAGA, Koichi YAMAGUCHI, Akinori HAMADA, Isamu MIYAKE, Shinya HIRAI
  • Publication number: 20210065950
    Abstract: An inductor component includes a base body, a first coil line and a second coil line, a first substantially columnar line and a second substantially columnar line, and a third substantially columnar line and a fourth substantially columnar line. The first substantially columnar line is located closer to the third substantially columnar line than the fourth substantially columnar line. A minimum distance X1 between the first substantially columnar line and the third substantially columnar line is shorter than a minimum distance Y between a first portion of the first coil line and a second portion of the second coil line.
    Type: Application
    Filed: July 30, 2020
    Publication date: March 4, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Isamu MIYAKE, Shinya HIRAI, Akinori HAMADA, Ryuichiro TOMINAGA, Koichi YAMAGUCHI
  • Patent number: 10855172
    Abstract: A shield includes an inductor that includes outer electrodes and that is mounted on a substrate in or on which a wiring pattern is formed, a second capacitor that is electrically connected between one of the outer electrodes of the inductor and a ground pattern formed in or on the substrate, and a shield member that is disposed so as to cover the inductor and electrically connected to the one of the outer electrodes of the inductor, to which the second capacitor is connected. The second capacitor has frequency characteristics such that, when the self-resonance frequency of the second capacitor serves as a boundary, the impedance of the second capacitor decreases as the frequency increases on the low frequency side and that the impedance of the second capacitor increases as the frequency increases on the high frequency side.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: December 1, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kenichi Ito, Shun Takai, Koichi Yamaguchi
  • Patent number: 10798295
    Abstract: An electronic device (1) includes a control device (10) configured to carry out: image capture operation determination processing in which a first subject is determined without a user operation and image capture timing is determined; and autofocus processing in which a second subject is determined without a user operation and an image capture device is controlled to focus on the second subject, the autofocus processing being commenced before the image capture operation determination processing finishes.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: October 6, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kenji Kimura, Koichi Yamaguchi, Mitsuhiro Haneda, Akihiro Kodama
  • Patent number: 10629350
    Abstract: A flexible inductor includes a coil substrate having a first spiral conductor formed in or on a bottom surface, a first magnetic sheet laminated on a top surface of the coil substrate, and a second magnetic sheet laminated on the bottom surface of the coil substrate. The flexible inductor includes a plurality of outer electrodes including a first outer electrode and a second outer electrode that are disposed in a peripheral portion of the bottom surface of the coil substrate, and cutout portions each formed in an area between the first spiral conductor and each of the outer electrodes so as to penetrate through the coil substrate. The first outer electrode is electrically connected to an outermost end portion of the first spiral conductor. The second outer electrode is electrically connected to an innermost end portion of the first spiral conductor.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: April 21, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masashi Hattori, Koichi Yamaguchi, Hideji Kihara
  • Publication number: 20200098506
    Abstract: An inductor component comprises an element body; first and second inductors in the body; first and second columnar wirings in the body with end surfaces exposed from a first principal surface of the body and electrically connected to the first inductor; third and fourth columnar wirings in the body with end surfaces exposed from the first principal surface and electrically connected to the second inductor; first through fourth external terminals contacting the end surfaces of the first through fourth columnar wirings, respectively; and an insulating film on the first principal surface covering a portion of the end surface of the first and third columnar wiring not contacting the first and third terminals, respectively. The first terminal is closer to the third terminal than the fourth terminal, and a shortest distance between the first and third terminals is longer than a shortest distance between the first and third columnar wirings.
    Type: Application
    Filed: September 16, 2019
    Publication date: March 26, 2020
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Akinori HAMADA, Hayami KUDO, Koichi YAMAGUCHI, Yoshimasa YOSHIOKA
  • Publication number: 20190342490
    Abstract: An electronic device (1) includes a control device (10) configured to carry out: image capture operation determination processing in which a first subject is determined without a user operation and image capture timing is determined; and autofocus processing in which a second subject is determined without a user operation and an image capture device is controlled to focus on the second subject, the autofocus processing being commenced before the image capture operation determination processing finishes.
    Type: Application
    Filed: April 29, 2019
    Publication date: November 7, 2019
    Inventors: KENJI KIMURA, KOICHI YAMAGUCHI, MITSUHIRO HANEDA, AKIHIRO KODAMA
  • Publication number: 20190342489
    Abstract: The present invention makes it possible that, in a case where, while image capturing is carried out with use of one of two different image capturing devices, image capturing is carried out with use of the other, appearances of a moving image and a still image captured by the respective two different image capturing devices match each other. In a case where image capturing for capturing a still image of a subject is carried out with use of a second camera while image capturing for capturing a moving image of the subject is carried out with use of a first camera, the image capturing of the still image is carried out on the basis of a moving image capture parameter.
    Type: Application
    Filed: April 26, 2019
    Publication date: November 7, 2019
    Inventors: KOICHI YAMAGUCHI, YUSUKE OKUDA, KENICHI OKAMOTO
  • Publication number: 20190326047
    Abstract: A common mode choke coil includes a body, a first spiral conductor, a second spiral conductor, a first extension conductor, and a second extension conductor. The thickness of the first extension conductor is equal to or less than (thickness of the first spiral conductor)/(winding number of the first spiral conductor), and the width of the first extension conductor is equal to or more than (width of the first spiral conductor)×(thickness of the first spiral conductor)/(thickness of the first extension conductor). The thickness of the second extension conductor is equal to or less than (thickness of the second spiral conductor)/(winding number of the second spiral conductor), and the width of the second extension conductor is equal to or more than (width of the second spiral conductor)×(thickness of the second spiral conductor)/(thickness of the second extension conductor).
    Type: Application
    Filed: April 3, 2019
    Publication date: October 24, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Koichi YAMAGUCHI, Masashi HATTORI