Patents by Inventor Katsuhiko Yabe

Katsuhiko Yabe 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).

  • Hot-dip aluminum coated steel sheet having excellent corrosion resistance and heat resistance
    Patent number: 4891274
    Abstract: A hot-dip aluminium coated steel sheet having excellent corrosion resistance and heat resistance, comprising a steel substrate containing 3 to 18% chromium, not more than 0.02% carbon, 0.1 to 1.5% manganese, 0.005 to 0.08% aluminium, not more than 0.1% silicon, with the balance being iron and unavoidable impurities, and aluminium coating on said sheet substrate. The coated sheet may further comprises a coating layer of nickel or nickel-iron alloy (Ni: 1 to 99%) beneath the aluminium coating, or an Al-Fe-Si-Ni-Cr alloy coating layer of 1 to 10.mu. in thickness and containing 0.05 to 5% nickel, 0.2 to 10% chromium, beneath the aluminium coating.
    Type: Grant
    Filed: November 7, 1986
    Date of Patent: January 2, 1990
    Assignee: Nippon Steel Corporation
    Inventors: Seijun Higuchi, Kenichi Asakawa, Takayuki Ohmori, Koji Umeno, Nobuyoshi Okada, Minoru Fujinaga, Fumio Yamamoto, Katsuhiko Yabe
  • Ferritic stainless steel having excellent workability and high toughness
    Patent number: 4078919
    Abstract: A ferritic stainless steel having high toughness both in the weld zone and the base metal comprising:C .ltoreq. 0.05%si .ltoreq. 0.7%1.0 < Mn < 2.5%Cr = 10% - 19% (exclusive)Ti = 5 .times. C% - 0.5%n .ltoreq. 0.03%al .ltoreq. 0.5%Balance: Fe and unavoidable impurities.
    Type: Grant
    Filed: June 4, 1976
    Date of Patent: March 14, 1978
    Assignee: Nippon Steel Corporation
    Inventors: Satoshi Kado, Taketomo Yamazaki, Mikio Yamanaka, Katsuhiko Yabe, Kotaro Yoshida