Patents by Inventor Goro Arkane

Goro Arkane 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).

  • Laser welding method
    Patent number: 6483072
    Abstract: The present invention is to provide a novel laser welding method, capable of preventing formation of a welding defect, and achieving a deep penetration by a low heat input so as to enable formation of a welding structure with a high strength and a high toughness even in the case of welding by a high power laser. A welding operation is executed with a periodical fluctuation adjustment so as to have a base output of 50% or more with respect to a peak output.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: November 19, 2002
    Assignees: Japan as Represented by Director General of Ministry of Education, Culture, Sports, Science and Technology National Research Institute for Metals, Ishikawajima-Harima Heavy Industries, Co., Ltd.
    Inventors: Susumu Tsukamoto, Isao Kawaguchi, Goro Arkane