Patents by Inventor Fumio Mitsuura

Fumio Mitsuura 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).

  • Method of forming a weld joint of austenitic stainless steel/ferritic steel
    Patent number: 5556561
    Abstract: A method of forming a weld joint between an austenitic stainless steel and a ferritic steel. The ferritic steel contains 0.03 to 0.12% carbon, 0.70% or less silicon, 0.10 to 1.50% manganese, 0.030% or less phosphorus, 0.015% or less sulphur, 1.50 to 3.50% chromium, 0.40% or less molybdenum, 1.00 to 3.00% tungsten, 0.10 to 0.35% vanadium, 0.01 to 0.10% niobium, 0.030% or less Sol. aluminum, 0.020% or less boron, and 0.030% or less nitrogen.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: September 17, 1996
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Kaneyasu Ishikawa, Fumio Mitsuura, Fujimitsu Masuyama