Patents by Inventor Yoshiyuki Nomura

Yoshiyuki Nomura 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: 12148573
    Abstract: A multilayer ceramic capacitor includes a multilayer body including ceramic layers and internal electrode layers laminated therein, a pair of external electrodes electrically connected to the internal electrode layers and provided on two end surfaces of the multilayer body. The pair of external electrodes each include a base electrode layer including a metal component, an electrically conductive resin layer on the base electrode layer and including a thermosetting resin and a metal component, and a Ni-plated layer on the electrically conductive layer. A stress of about ?150 MPa or more and about 50 MPa or less is applied to the Ni-plated layer, and an end portion of the Ni-plated layer being in contact with the multilayer body.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: November 19, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shima Katsube, Yasuhiro Mishima, Yoshiyuki Nomura, Kazuki Yoshino
  • Publication number: 20240349422
    Abstract: An object of the present technology is to provide a copper clad laminate including a resin substrate that has biodegradability and less likely to warp or crack. The present technology provides a copper clad laminate including: a resin substrate; an adhesive layer; and a copper foil layer, the adhesive layer and the copper foil layer being stacked in this order on at least one side of the resin substrate, the resin substrate containing at least 50 mass % or more of polylactic acid, the degree of crystallization of the polylactic acid calculated on a basis of a result of differential scanning calorimetry being 29% or more and 36% or less, a crystallite size of the polylactic acid calculated on a basis of a result of X-ray diffraction measurement being 19 nm or more and 26 nm or less. Further, the present technology provides a printed wiring board formed using the copper clad laminate.
    Type: Application
    Filed: March 15, 2022
    Publication date: October 17, 2024
    Inventors: Kenji UEDA, Fumikatsu UESAWA, Osamu MAKI, Yoshiyuki NOMURA
  • Publication number: 20240312710
    Abstract: A multilayer ceramic capacitor includes a multilayer body including dielectric layers which are stacked and internal electrode layers which are stacked, and external electrodes, each connected to the internal electrode layers. The external electrodes each include a conductive resin layer and a plated layer on the conductive resin layer. The conductive resin layer includes a resin portion, conductive fillers dispersed in the resin portion, and metal particles dispersed unevenly in a distribution differing from that of the conductive fillers in the conductive resin layer. An abundance ratio of the metal particles to the resin portion is higher on a side of the plated layer of the conductive resin layer than on a side of the conductive resin layer close to the multilayer body.
    Type: Application
    Filed: May 30, 2024
    Publication date: September 19, 2024
    Inventor: Yoshiyuki NOMURA
  • Patent number: 12068116
    Abstract: A multilayer ceramic capacitor includes a ceramic element body including ceramic layers and internal electrode layers, and a pair of external electrodes on both end surfaces of the ceramic element body so as to be electrically connected to the internal electrode layers. Each of the external electrodes includes a base electrode layer and a resin external electrode layer stacked on the base electrode layer. The resin external electrode layer includes a thermosetting resin and a metal powder and amine, isocyanate, epoxy, mercapto, and/or ureido silane coupling agents.
    Type: Grant
    Filed: August 4, 2023
    Date of Patent: August 20, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yoshiyuki Nomura
  • Patent number: 12062498
    Abstract: A multilayer ceramic capacitor includes a multilayer body including laminated ceramic layers, first and second principal surfaces in a height direction, first and second lateral surfaces in a width direction, and first and second end surfaces in a length direction, first and second internal electrode layers on the ceramic layers and respectively exposed to the first and second end surfaces, first and second external electrodes respectively electrically connected to the first and second internal electrode layers, and portions of the first and second principal surfaces and the first and second lateral surfaces. The first and second external electrodes each include an underlying electrode layer including a metal component, a plating layer on the underlying electrode layer, and a fatty acid on at least a surface of the underlying electrode layer.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: August 13, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takeshi Itamochi, Yoshiyuki Nomura
  • Patent number: 12027316
    Abstract: A multilayer ceramic capacitor includes a multilayer body including dielectric layers which are stacked and internal electrode layers which are stacked, and external electrodes, each connected to the internal electrode layers. The external electrodes each include a conductive resin layer and a plated layer on the conductive resin layer. The conductive resin layer includes a resin portion, conductive fillers dispersed in the resin portion, and metal particles dispersed unevenly in a distribution differing from that of the conductive fillers in the conductive resin layer. An abundance ratio of the metal particles to the resin portion is higher on a side of the plated layer of the conductive resin layer than on a side of the conductive resin layer close to the multilayer body.
    Type: Grant
    Filed: August 8, 2023
    Date of Patent: July 2, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yoshiyuki Nomura
  • Patent number: 11935702
    Abstract: A multilayer ceramic capacitor includes a ceramic element body including ceramic layers and internal electrode layers, and a pair of external electrodes on both end surfaces of the ceramic element body so as to be electrically connected to the internal electrode layers. Each of the external electrodes includes a base electrode layer and a resin external electrode layer stacked on the base electrode layer. The resin external electrode layer includes a thermosetting resin and a metal powder and amine, isocyanate, epoxy, mercapto, and/or ureido silane coupling agents.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: March 19, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yoshiyuki Nomura
  • Publication number: 20240013981
    Abstract: A multilayer ceramic capacitor includes a ceramic element body including ceramic layers and internal electrode layers, and a pair of external electrodes on both end surfaces of the ceramic element body so as to be electrically connected to the internal electrode layers. Each of the external electrodes includes a base electrode layer and a resin external electrode layer stacked on the base electrode layer. The resin external electrode layer includes a thermosetting resin and a metal powder and amine, isocyanate, epoxy, mercapto, and/or ureido silane coupling agents.
    Type: Application
    Filed: August 4, 2023
    Publication date: January 11, 2024
    Inventor: Yoshiyuki NOMURA
  • Publication number: 20230395323
    Abstract: A multilayer ceramic capacitor includes a multilayer body including dielectric layers which are stacked and internal electrode layers which are stacked, and external electrodes, each connected to the internal electrode layers. The external electrodes each include a conductive resin layer and a plated layer on the conductive resin layer. The conductive resin layer includes a resin portion, conductive fillers dispersed in the resin portion, and metal particles dispersed unevenly in a distribution differing from that of the conductive fillers in the conductive resin layer. An abundance ratio of the metal particles to the resin portion is higher on a side of the plated layer of the conductive resin layer than on a side of the conductive resin layer close to the multilayer body.
    Type: Application
    Filed: August 8, 2023
    Publication date: December 7, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Yoshiyuki NOMURA
  • Patent number: 11810728
    Abstract: An electrolytic capacitor that includes a capacitor element including an anode portion made of a metal layer, a dielectric layer on an outer surface of the metal layer, and a cathode portion on an outer surface of the dielectric layer; an insulating resin body covering the capacitor element; and a gas barrier film on an outer surface of the insulating resin body, the gas barrier film having a water vapor transmittance of 1 g/m2 per day or less.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: November 7, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Satoshi Tani, Yoshiyuki Nomura
  • Publication number: 20230352242
    Abstract: A multilayer ceramic capacitor includes a laminate including dielectric layers and internal electrode layers, and first and second external electrodes on surfaces of the laminate. The laminate includes first and second main surfaces oppose each other in a lamination direction, first and second side surfaces oppose each other in a length direction perpendicular or substantially perpendicular to the lamination direction, and third and fourth side surfaces oppose each other in a width direction perpendicular or substantially perpendicular to the lamination direction and the length direction. A length ratio EB1/EA1 of the first external electrode wrapping around to main surfaces of the laminate is about 0 or more and about 0.5 or less. A length ratio EB2/EA2 of the second external electrode wrapping around to the main surfaces of the laminate is about 0 or more and about 0.5 or less.
    Type: Application
    Filed: June 22, 2023
    Publication date: November 2, 2023
    Inventors: Suguru NAKANO, Satoshi MURAMATSU, Risa HOJO, Yoshiyuki NOMURA
  • Patent number: 11798742
    Abstract: A mounting structure of a multilayer ceramic capacitor includes a substrate, and a multilayer ceramic capacitor connected to the substrate and including a laminate including dielectric layers and internal electrode layers, and external electrodes on main surfaces of the laminate. The laminate further includes first, second, third, and fourth via conductors connecting the internal electrode layers and the external electrodes. The external electrodes include first, second, third, and fourth external electrodes, each connected to respective end surfaces of the via conductor. Each of the external electrodes does not extend to the side surfaces of the laminate. A ratio W/L of a dimension W in the width direction of the multilayer ceramic capacitor to a dimension L in the length direction of the multilayer ceramic capacitor is about 0.85 or more and about 1 or less.
    Type: Grant
    Filed: January 3, 2023
    Date of Patent: October 24, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Suguru Nakano, Satoshi Muramatsu, Risa Hojo, Yoshiyuki Nomura
  • Patent number: 11763988
    Abstract: A multilayer ceramic capacitor includes a multilayer body including dielectric layers which are stacked and internal electrode layers which are stacked, and external electrodes, each connected to the internal electrode layers. The external electrodes each include a conductive resin layer and a plated layer on the conductive resin layer. The conductive resin layer includes a resin portion, conductive fillers dispersed in the resin portion, and metal particles dispersed unevenly in a distribution differing from that of the conductive fillers in the conductive resin layer. An abundance ratio of the metal particles to the resin portion is higher on a side of the plated layer of the conductive resin layer than on a side of the conductive resin layer close to the multilayer body.
    Type: Grant
    Filed: January 26, 2023
    Date of Patent: September 19, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yoshiyuki Nomura
  • Patent number: 11728096
    Abstract: A multilayer ceramic capacitor includes a laminate including dielectric layers and internal electrode layers, and external electrodes on surfaces of the laminate. A silane coupling agent layer is on at least a mounting surface among surfaces of the laminate. The silane coupling agent layer is made of a fluorine-based silane coupling agent, and a silane coupling agent concentration on the mounting surface is about 0.1 or higher and about 365 or lower and is higher than a silane coupling agent concentration on a counter surface opposing the mounting surface, or the silane coupling agent layer is made of a carbon-based silane coupling agent, and a silane coupling agent concentration on the mounting surface is about 0.91 or higher and about 38.10 or lower and is higher than a silane coupling agent concentration on a counter surface opposing the mounting surface.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: August 15, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Suguru Nakano, Satoshi Muramatsu, Risa Hojo, Yoshiyuki Nomura
  • Publication number: 20230178300
    Abstract: A multilayer ceramic capacitor includes a multilayer body including dielectric layers which are stacked and internal electrode layers which are stacked, and external electrodes, each connected to the internal electrode layers. The external electrodes each include a conductive resin layer and a plated layer on the conductive resin layer. The conductive resin layer includes a resin portion, conductive fillers dispersed in the resin portion, and metal particles dispersed unevenly in a distribution differing from that of the conductive fillers in the conductive resin layer. An abundance ratio of the metal particles to the resin portion is higher on a side of the plated layer of the conductive resin layer than on a side of the conductive resin layer close to the multilayer body.
    Type: Application
    Filed: January 26, 2023
    Publication date: June 8, 2023
    Inventor: Yoshiyuki NOMURA
  • Publication number: 20230133747
    Abstract: A mounting structure of a multilayer ceramic capacitor includes a substrate, and a multilayer ceramic capacitor connected to the substrate and including a laminate including dielectric layers and internal electrode layers, and external electrodes on main surfaces of the laminate. The laminate further includes first, second, third, and fourth via conductors connecting the internal electrode layers and the external electrodes. The external electrodes include first, second, third, and fourth external electrodes, each connected to respective end surfaces of the via conductor. Each of the external electrodes does not extend to the side surfaces of the laminate. A ratio W/L of a dimension W in the width direction of the multilayer ceramic capacitor to a dimension L in the length direction of the multilayer ceramic capacitor is about 0.85 or more and about 1 or less.
    Type: Application
    Filed: January 3, 2023
    Publication date: May 4, 2023
    Inventors: Suguru NAKANO, Satoshi MURAMATSU, Risa HOJO, Yoshiyuki NOMURA
  • Publication number: 20230126382
    Abstract: A multilayer ceramic capacitor includes a multilayer body including ceramic layers and internal electrode layers laminated therein, a pair of external electrodes electrically connected to the internal electrode layers and provided on two end surfaces of the multilayer body. The pair of external electrodes each include a base electrode layer including a metal component, an electrically conductive resin layer on the base electrode layer and including a thermosetting resin and a metal component, and a Ni-plated layer on the electrically conductive layer. A stress of about ?150 MPa or more and about 50 MPa or less is applied to the Ni-plated layer, and an end portion of the Ni-plated layer being in contact with the multilayer body.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 27, 2023
    Inventors: Shima KATSUBE, Yasuhiro MISHIMA, Yoshiyuki NOMURA, Kazuki YOSHINO
  • Publication number: 20230113957
    Abstract: A multilayer ceramic capacitor includes a multilayer body including laminated ceramic layers, first and second principal surfaces in a height direction, first and second lateral surfaces in a width direction, and first and second end surfaces in a length direction, first and second internal electrode layers on the ceramic layers and respectively exposed to the first and second end surfaces, first and second external electrodes respectively electrically connected to the first and second internal electrode layers, and portions of the first and second principal surfaces and the first and second lateral surfaces. The first and second external electrodes each include an underlying electrode layer including a metal component, a plating layer on the underlying electrode layer, and a fatty acid on at least a surface of the underlying electrode layer.
    Type: Application
    Filed: October 4, 2022
    Publication date: April 13, 2023
    Inventors: Takeshi ITAMOCHI, Yoshiyuki NOMURA
  • Patent number: 11600440
    Abstract: A multilayer ceramic capacitor includes: a laminate including dielectric layers and internal electrode layers; and external electrodes on the main surfaces of the laminate. The laminate further includes a first via conductor, a second via conductor, a third via conductor, and a fourth via conductor that connect the internal electrode layers and the external electrodes. The external electrodes include first external electrodes, second external electrodes, third external electrodes, and fourth external electrodes, each connected to the respective end surfaces of the via conductor. Each of the external electrodes does not extend to the side surfaces of the laminate. A ratio W/L of a dimension W in the width direction of the multilayer ceramic capacitor to a dimension L in the length direction of the multilayer ceramic capacitor is about 0.85 or more and about 1 or less. The dimension L in the length direction of the multilayer ceramic capacitor is about 750 ?m or smaller.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: March 7, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Suguru Nakano, Satoshi Muramatsu, Risa Hojo, Yoshiyuki Nomura
  • Patent number: 11594372
    Abstract: A multilayer ceramic capacitor includes a multilayer body including dielectric layers which are stacked and internal electrode layers which are stacked, and external electrodes, each connected to the internal electrode layers. The external electrodes each include a conductive resin layer and a plated layer on the conductive resin layer. The conductive resin layer includes a resin portion, conductive fillers dispersed in the resin portion, and metal particles dispersed unevenly in a distribution differing from that of the conductive fillers in the conductive resin layer. An abundance ratio of the metal particles to the resin portion is higher on a side of the plated layer of the conductive resin layer than on a side of the conductive resin layer close to the multilayer body.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: February 28, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yoshiyuki Nomura