Patents by Inventor Yasuhiro KARAHASHI

Yasuhiro KARAHASHI 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: 10327340
    Abstract: A method for producing circuit board, including: adhering plastic deformable insulating material onto surface of laminate, which contains second-metal-layer of second metal, and first-metal-layer in pattern on second-metal-layer, and the surface of the laminate is surface of second-metal-layer where first-metal-layer is formed, and surface of first-metal-layer, followed by curing the material, and removing second-metal-layer to form plate structure to which first-metal-layer in pattern is formed; opening hole in cured material from surface of the plate structure opposite to surface thereof where first-metal-layer is formed, until the hole reaches first-metal-layer; filling the hole with electroconductive paste, to form the plate structure filled therewith; and laminating one plate structure filled therewith with the other plate structure filled therewith in manner that first-metal-layer of one plate structure filled therewith faces opening of the hole of other plate structure filled therewith, wherein first-m
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: June 18, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Kenji Iida, Takashi Nakagawa, Seigo Yamawaki, Yasuhiro Karahashi, Junichi Kanai, Koji Komemura
  • Publication number: 20170347465
    Abstract: A method for producing circuit board, including: adhering plastic deformable insulating material onto surface of laminate, which contains second-metal-layer of second metal, and first-metal-layer in pattern on second-metal-layer, and the surface of the laminate is surface of second-metal-layer where first-metal-layer is formed, and surface of first-metal-layer, followed by curing the material, and removing second-metal-layer to form plate structure to which first-metal-layer in pattern is formed; opening hole in cured material from surface of the plate structure opposite to surface thereof where first-metal-layer is formed, until the hole reaches first-metal-layer; filling the hole with electroconductive paste, to form the plate structure filled therewith; and laminating one plate structure filled therewith with the other plate structure filled therewith in manner that first-metal-layer of one plate structure filled therewith faces opening of the hole of other plate structure filled therewith, wherein first-m
    Type: Application
    Filed: August 15, 2017
    Publication date: November 30, 2017
    Inventors: Kenji Iida, Takashi Nakagawa, Seigo Yamawaki, Yasuhiro Karahashi, Junichi Kanai, Koji Komemura
  • Patent number: 9769936
    Abstract: A method for producing circuit board, including: adhering plastic deformable insulating material onto surface of laminate, which contains second-metal-layer of second metal, and first-metal-layer in pattern on second-metal-layer, and the surface of the laminate is surface of second-metal-layer where first-metal-layer is formed, and surface of first-metal-layer, followed by curing the material, and removing second-metal-layer to form plate structure to which first-metal-layer in pattern is formed; opening hole in cured material from surface of the plate structure opposite to surface thereof where first-metal-layer is formed, until the hole reaches first-metal-layer; filling the hole with electroconductive paste, to form the plate structure filled therewith; and laminating one plate structure filled therewith with the other plate structure filled therewith in manner that first-metal-layer of one plate structure filled therewith faces opening of the hole of other plate structure filled therewith, wherein first-m
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: September 19, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Kenji Iida, Takashi Nakagawa, Seigo Yamawaki, Yasuhiro Karahashi, Junichi Kanai, Koji Komemura
  • Publication number: 20160338193
    Abstract: A multilayer board disclosed herein includes: a plurality of insulating layers made of a thermosetting resin and stacked on one another, each insulating layer being provided with a via hole; a plurality of wiring each formed between the insulating layers and including an inclined side surface; and a conductive via made of a cured product of conductive paste filled in the via hole and connecting the vertically adjacent wiring to each other. Here, orientations of the inclined side surfaces are alternately changed from the wiring to the wiring.
    Type: Application
    Filed: April 15, 2016
    Publication date: November 17, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Junichi Kanai, Yasuhiro Karahashi, Hirofumi Kobayashi, Shunsuke KOGOI, Junichi Murayama, Koji Komemura, Hidehiko Fujisaki
  • Publication number: 20150029679
    Abstract: A method for producing circuit board, including: adhering plastic deformable insulating material onto surface of laminate, which contains second-metal-layer of second metal, and first-metal-layer in pattern on second-metal-layer, and the surface of the laminate is surface of second-metal-layer where first-metal-layer is formed, and surface of first-metal-layer, followed by curing the material, and removing second-metal-layer to form plate structure to which first-metal-layer in pattern is formed; opening hole in cured material from surface of the plate structure opposite to surface thereof where first-metal-layer is formed, until the hole reaches first-metal-layer; filling the hole with electroconductive paste, to form the plate structure filled therewith; and laminating one plate structure filled therewith with the other plate structure filled therewith in manner that first-metal-layer of one plate structure filled therewith faces opening of the hole of other plate structure filled therewith, wherein first-m
    Type: Application
    Filed: June 10, 2014
    Publication date: January 29, 2015
    Inventors: Kenji Iida, Takashi Nakagawa, Seigo Yamawaki, Yasuhiro Karahashi, Junichi Kanai, Koji Komemura
  • Publication number: 20120132464
    Abstract: A method for manufacturing a printed wiring board includes filling material in through holes formed in first lands on a first substrate, forming projection portions projecting from the first lands on the surface of the material of the through holes, placing a conductive material on the first lands, and electrically connecting the first lands of the first substrate and second lands of second substrate by pressing the conductive material under melting filled between the first and second lands in the lamination direction of the substrates by the projection portions when laminating the substrates in such a manner that the lands of the other substrate face the lands of the substrate for aggregation of the conductive material.
    Type: Application
    Filed: November 16, 2011
    Publication date: May 31, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Hideaki YOSHIMURA, Naohito MOTOOKA, Yasuhiro KARAHASHI, Asami HONDO, Satoshi YAMAGISHI, Hiromitsu KOBAYASHI