Patents by Inventor Kaoru SEKIDO

Kaoru SEKIDO 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).

  • Faulted condition determination device and faulted condition determination method
    Patent number: 11378526
    Abstract: A faulted condition determination method is designed to detect a chromium content and a nickel content in a predetermined boundary region proximate to a boundary between a high-strength ferrite steel and a weld material in a welded joint in which the high-strength ferrite steel and another steel are welded together using the weld material containing nickel and to thereby determine the faulted condition of the predetermined boundary region based on the chromium content and the nickel content. Accordingly, it is possible to appropriately determine the faulted condition of welding of a replacement part in which a high-strength ferrite steel and another steel are welded together using a nickel-based weld material.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: July 5, 2022
    Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Nobuhiko Saito, Nobuyoshi Komai, Yuichi Hirakawa, Hiroaki Fukushima, Kota Sawada, Kazuhiro Kimura, Kaoru Sekido
  • FAULTED CONDITION DETERMINATION DEVICE AND FAULTED CONDITION DETERMINATION METHOD
    Publication number: 20190250110
    Abstract: A faulted condition determination method is designed to detect a chromium content and a nickel content in a predetermined boundary region proximate to a boundary between a high-strength ferrite steel and a weld material in a welded joint in which the high-strength ferrite steel and another steel are welded together using the weld material containing nickel and to thereby determine the faulted condition of the predetermined boundary region based on the chromium content and the nickel content. Accordingly, it is possible to appropriately determine the faulted condition of welding of a replacement part in which a high-strength ferrite steel and another steel are welded together using a nickel-based weld material.
    Type: Application
    Filed: February 7, 2019
    Publication date: August 15, 2019
    Inventors: Nobuhiko SAITO, Nobuyoshi KOMAI, Yuichi HIRAKAWA, Hiroaki FUKUSHIMA, Kota SAWADA, Kazuhiro KIMURA, Kaoru SEKIDO