Patents by Inventor Ryoe Wada

Ryoe Wada 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: 11329405
    Abstract: Provided is a tape-shaped contact member including a tape-shaped contact material. At least one wire-shaped brazing material is bonded to the tape-shaped contact material, at least one projection including the brazing material and protruding from a surface of the contact material is formed in a cross-sectional shape, a diffusion region containing a metal component forming the brazing material is formed along an interface with the brazing material inside the contact material, and the diffusion region has a thickness of 2 ?m or more and 10 ?m or less. A chip-shaped contact component can be obtained by cutting the tape-shaped contact member to an arbitrary length. The present contact component is useful as a constituent member for a switching electrical contact, and capable of adapting to height reduction of the electrical contact. The present invention can also contribute to reduction of occurrence of poor bonding.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: May 10, 2022
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Hiroshi Matsuo, Ryoe Wada
  • Publication number: 20190280402
    Abstract: Provided is a tape-shaped contact member including a tape-shaped contact material. At least one wire-shaped brazing material is bonded to the tape-shaped contact material, at least one projection including the brazing material and protruding from a surface of the contact material is formed in a cross-sectional shape, a diffusion region containing a metal component forming the brazing material is formed along an interface with the brazing material inside the contact material, and the diffusion region has a thickness of 2 ?m or more and 10 ?m or less. A chip-shaped contact component can be obtained by cutting the tape-shaped contact member to an arbitrary length. The present contact component is useful as a constituent member for a switching electrical contact, and capable of adapting to height reduction of the electrical contact. The present invention can also contribute to reduction of occurrence of poor bonding.
    Type: Application
    Filed: December 18, 2018
    Publication date: September 12, 2019
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Hiroshi MATSUO, Ryoe WADA
  • Publication number: 20150015360
    Abstract: Provided is an electrode material constituting a movable electrode 50 of a thermal fuse 1, wherein the electrode material has a clad structure where a base layer including Cu or a Cu alloy is joined to a contact point layer made of a Ag—CuO based oxide-dispersion-strengthened alloy. The present invention is an electrode material that is suitable for a movable electrode of a thermal fuse and can solve the problem of the failure of contact with the case in association with long-term use. In this electrode material, it is preferable that a contact layer including Ag be joined to a back surface of the base layer in order to improve resistance to contact with a case 10.
    Type: Application
    Filed: March 21, 2013
    Publication date: January 15, 2015
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Hiroshi Matsuo, Ryoe Wada