Patents by Inventor Kazuhiko Fukamachi

Kazuhiko Fukamachi 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: 10826203
    Abstract: The present invention provides metallic materials for electronic components, having low degree of whisker formation, low adhesive wear property and high durability, and connector terminals, connectors and electronic components using such metallic materials.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: November 3, 2020
    Assignee: JX NIPPON MINING & METALS CORPORATION
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Patent number: 10594066
    Abstract: The present invention provides metallic materials for electronic components, having low degree of whisker formation, low adhesive wear property and high durability, and connector terminals, connectors and electronic components using such metallic materials.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: March 17, 2020
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Patent number: 10530084
    Abstract: The present invention provides metallic materials for electronic components, having low degree of whisker formation, low adhesive wear property and high durability, and connector terminals, connectors and electronic components using such metallic materials.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: January 7, 2020
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Patent number: 10373730
    Abstract: The present invention provides metallic materials for electronic components, having low degree of whisker formation, low adhesive wear property and high durability, and connector terminals, connectors and electronic components using such metallic materials.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: August 6, 2019
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Patent number: 9979110
    Abstract: There are provided an electronic component metal material having low insertability/extractability, low whisker formability and high durability, and a method for manufacturing the electronic component metal material. The electronic component metal material 10 includes a base material 11, an A layer 14 constituting an outermost surface layer on the base material 11 and formed of Sn, In or an alloy thereof, and a B layer 13 constituting a middle layer provided between the base material 11 and the A layer 14 and formed of Ag, Au, Pt, Pd, Ru, Rh, Os, Ir or an alloy thereof, wherein the outermost surface layer (A layer) 14 has a thickness larger than 0.2 ?m, and the middle layer (B layer) 13 has a thickness of 0.001 ?m or larger.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: May 22, 2018
    Assignee: JX Nippin Mining & Metals Corporation
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Patent number: 9728878
    Abstract: There are provided a press-fit terminal which has an excellent whisker resistance and a low inserting force, is unlikely to cause shaving of plating when the press-fit terminal is inserted into a substrate, and has a high heat resistance, and an electronic component using the same. A press-fit terminal comprises: a female terminal connection part provided at one side of an attached part to be attached to a housing; and a substrate connection part provided at the other side and attached to a substrate by press-fitting the substrate connection part into a through-hole formed in the substrate. At least the substrate connection part has the surface structure described below, and the press-fit terminal has an excellent whisker resistance.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: August 8, 2017
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Patent number: 9580783
    Abstract: There are provided an electronic component metal material which has low insertability/extractability, low whisker formability, and high durability, and a method for manufacturing the metal material. The electronic component metal material 10 includes a base material 11 , an A layer 14 constituting an outermost surface layer on the base material 11 and formed of Sn, In or an alloy thereof, and a B layer 13 constituting a middle layer provided between the base material 11 and the A layer 14 and formed of Ag, Au, Pt, Pd, Ru, Rh, Os, Ir or an alloy thereof, wherein the outermost surface layer (A layer) 14 has a thickness of 0.002 to 0.2 ?m, and the middle layer (B layer) 13 has a thickness larger than 0.3 ?m.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: February 28, 2017
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Patent number: 9576693
    Abstract: There are provided a metal material for electronic component which has low insertability/extractability, low whisker formability, and high durability, and a method for manufacturing the metal material. The metal material 10 for electronic components has a base material 11, an A layer 14 constituting a surface layer on the base material 11 and formed of Sn, In or an alloy thereof, and a B layer 13 constituting a middle layer provided between the base material 11 and the A layer 14 and formed of Ag, Au, Pt, Pd, Ru, Rh, Os, Ir or an alloy thereof, wherein the surface layer (A layer) 14 has a thickness of 0.002 to 0.2 ?m, and the middle layer (B layer) 13 has a thickness of 0.001 to 0.3 ?m.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: February 21, 2017
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Patent number: 9330804
    Abstract: The present invention provides a metallic material for electronic components having a low degree of whisker formation and a high durability, and connector terminals, connectors and electronic components using the metallic material. The metallic material for electronic components includes: a base material; on the base material, an lower layer constituted with one or two or more selected from the group consisting of Ni, Cr, Mn, Fe, Co and Cu; on the lower layer, an upper layer constituted with an alloy composed of one or both of Sn and In (constituent elements A) and one or two or more of Ag, Au, Pt, Pd, Ru, Rh, Os and Ir (constituent elements B), wherein the thickness of the lower layer is 0.05 ?m or more; the thickness of the upper layer is 0.005 ?m or more and 0.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: May 3, 2016
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Publication number: 20150295333
    Abstract: There are provided an electronic component metal material which has low insertability/extractability, low whisker formability, and high durability, and a method for manufacturing the metal material. The electronic component metal material 10 includes a base material 11, an A layer 14 constituting an outermost surface layer on the base material 11 and formed of Sn, In or an alloy thereof, and a B layer 13 constituting a middle layer provided between the base material 11 and the A layer 14 and formed of Ag, Au, Pt, Pd, Ru, Rh, Os, Ir or an alloy thereof, wherein the outermost surface layer (A layer) 14 has a thickness of 0.002 to 0.2 ?m, and the middle layer (B layer) 13 has a thickness larger than 0.3 ?m.
    Type: Application
    Filed: October 31, 2012
    Publication date: October 15, 2015
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Publication number: 20150259813
    Abstract: The present invention provides a surface treated plating material being suppressed in the occurrence of whiskers, maintaining satisfactory solderability and satisfactory contact resistance even when exposed to a high temperature environment, and being low in the terminal-connector insertion force. The surface treated plating material is a plating material including: a metal base material; a lower layer constituted with Ni or Ni alloy plating; and an upper layer constituted with Sn or Sn alloy plating, wherein the lower layer and the upper layer are sequentially formed on the metal base material; P and N are present on the upper layer surface; the amounts of the P and N elements deposited on the upper layer surface are respectively P: 1×10?11 to 4×10?8 mol/cm2, N: 2×10?12 to 8×10?9 mol/cm2.
    Type: Application
    Filed: July 5, 2013
    Publication date: September 17, 2015
    Inventors: Atsushi Kodama, Yoshitaka Shibuya, Kazuhiko Fukamachi
  • Publication number: 20150255906
    Abstract: There are provided an electronic component metal material having low insertability/extractability, low whisker formability and high durability, and a method for manufacturing the electronic component metal material. The electronic component metal material 10 includes a base material 11, an A layer 14 constituting an outermost surface layer on the base material 11 and formed of Sn, In or an alloy thereof, and a B layer 13 constituting a middle layer provided between the base material 11 and the A layer 14 and formed of Ag, Au, Pt, Pd, Ru, Rh, Os, Ir or an alloy thereof, wherein the outermost surface layer (A layer) 14 has a thickness larger than 0.2 ?m, and the middle layer (B layer) 13 has a thickness of 0.001 ?m or larger.
    Type: Application
    Filed: October 31, 2012
    Publication date: September 10, 2015
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Publication number: 20150213918
    Abstract: The present invention provides metallic materials for electronic components, having low degree of whisker formation, low adhesive wear property and high durability, and connector terminals, connectors and electronic components using such metallic materials.
    Type: Application
    Filed: June 25, 2013
    Publication date: July 30, 2015
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Publication number: 20150194746
    Abstract: The present invention provides metallic materials for electronic components, having low degree of whisker formation, low adhesive wear property and high durability, and connector terminals, connectors and electronic components using such metallic materials.
    Type: Application
    Filed: June 27, 2013
    Publication date: July 9, 2015
    Applicant: JX Nippon Mining & Metals Corporation
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Publication number: 20150171537
    Abstract: The present invention provides metallic materials for electronic components, having low degree of whisker formation, low adhesive wear property and high durability, and connector terminals, connectors and electronic components using such metallic materials.
    Type: Application
    Filed: June 27, 2013
    Publication date: June 18, 2015
    Applicant: JX Nippon Mining & Metals Corporation
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Publication number: 20150147924
    Abstract: The present invention provides metallic materials for electronic components, having low degree of whisker formation, low adhesive wear property and high durability, and connector terminals, connectors and electronic components using such metallic materials.
    Type: Application
    Filed: June 27, 2013
    Publication date: May 28, 2015
    Applicant: JX Nippon Mining & Metals Corporation
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Publication number: 20150047879
    Abstract: The present invention provides a metallic material for electronic components having a low degree of whisker formation and a high durability, and connector terminals, connectors and electronic components using the metallic material. The metallic material for electronic components includes: a base material; on the base material, an lower layer constituted with one or two or more selected from the group consisting of Ni, Cr, Mn, Fe, Co and Cu; on the lower layer, an upper layer constituted with an alloy composed of one or both of Sn and In (constituent elements A) and one or two or more of Ag, Au, Pt, Pd, Ru, Rh, Os and Ir (constituent elements B), wherein the thickness of the lower layer is 0.05 ?m or more; the thickness of the upper layer is 0.005 ?m or more and 0.
    Type: Application
    Filed: January 25, 2013
    Publication date: February 19, 2015
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Publication number: 20150011132
    Abstract: There are provided a press-fit terminal which has an excellent whisker resistance and a low inserting force, is unlikely to cause shaving of plating when the press-fit terminal is inserted into a substrate, and has a high heat resistance, and an electronic component using the same. A press-fit terminal comprises: a female terminal connection part provided at one side of an attached part to be attached to a housing; and a substrate connection part provided at the other side and attached to a substrate by press-fitting the substrate connection part into a through-hole formed in the substrate. At least the substrate connection part has the surface structure described below, and the press-fit terminal has an excellent whisker resistance.
    Type: Application
    Filed: January 30, 2013
    Publication date: January 8, 2015
    Applicant: JX Nippon Mining & Metals Corporation
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Publication number: 20140329107
    Abstract: There are provided a metal material for electronic component which has low insertability/extractability, low whisker formability, and high durability, and a method for manufacturing the metal material. The metal material 10 for electronic components has a base material 11, an A layer 14 constituting a surface layer on the base material 11 and formed of Sn, In or an alloy thereof, and a B layer 13 constituting a middle layer provided between the base material 11 and the A layer 14 and formed of Ag, Au, Pt, Pd, Ru, Rh, Os, Ir or an alloy thereof, wherein the surface layer (A layer) 14 has a thickness of 0.002 to 0.2 ?m, and the middle layer (B layer) 13 has a thickness of 0.001 to 0.3 ?m.
    Type: Application
    Filed: September 10, 2012
    Publication date: November 6, 2014
    Applicant: JX NIPPON MINING & METALS CORPORATION
    Inventors: Yoshitaka Shibuya, Kazuhiko Fukamachi, Atsushi Kodama
  • Patent number: 8317948
    Abstract: The invention provides Cu—Ni—Si alloys containing Co, and having excellent strength and conductivity. A copper alloy for electronic materials in accordance with the invention contains about 0.5-about 2.5% by weight of Ni, about 0.5-about 2.5% by weight of Co, about 0.30-about 1.2% by weight of Si, and the balance being Cu and unavoidable impurities, wherein the ratio of the total weight of Ni and Co to the weight of Si ([Ni+Co]/Si ratio) satisfies the formula: about 4?[Ni+Co]/Si?about 5, and the ratio of Ni to Co (Ni/Co ratio) satisfies the formula: about 0.5?Ni/Co?about 2.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: November 27, 2012
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Naohiko Era, Kazuhiko Fukamachi, Hiroshi Kuwagaki