Patents by Inventor Hideo Abo

Hideo Abo 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 and apparatus for production of metal powder by atomizing
    Patent number: 6254661
    Abstract: An atomizing method for producing metal powder, including splitting molten metal in the vicinity of an exit of a nozzle by introducing the molten metal into a center of the nozzle, wherein gas is flowing through the nozzle. The split molten metal is then further split into fine particles by liquid ejected in an inverse cone shaped flow from a slit surrounding a lower side of the nozzle. The resulting powder is of fine size and spherical or granular shape, and is suitable for metal injection shaping.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: July 3, 2001
    Assignee: Pacific Metals Co., Ltd.
    Inventors: Tohru Takeda, Yoshinari Tanaka, Masami Sasaki, Tokihiro Shimura, Koei Nakabayashi, Hiroyuki Azuma, Hideo Abo, Toshio Takakura, Yoshiyuki Kato
  • Stainless steel having excellent pitting corrosion resistance and hot workabilities
    Patent number: 4172716
    Abstract: A stainless steel having excellent pitting corrosion resistance and hot workability which comprises 0.001 to 0.20% (by weight) of C, 0.1 to 6.0% of Si, 0.1 to 10.0% of Mn, 15 to 35% of Cr, 3.5 to 35.0% of Ni, 0.01 to 6.0% of Mo (Si+Cr+Ni+Mo.gtoreq.25%), 0.001 to 0.50% of N, 0.01 to 0.07% of Al, and 0.001 to 0.02% of Ca with the balance being iron and unavoidable impurities.
    Type: Grant
    Filed: September 28, 1978
    Date of Patent: October 30, 1979
    Assignee: Nippon Steel Corporation
    Inventors: Hideo Abo, Masanori Ueda, Sakae Noguchi
  • Pitting corrosion resistant austenite stainless steel
    Patent number: RE29313
    Abstract: A pitting corrosion resistant austenite stainless steel comprising not more than 0.08% by weight of carbon, not more than 4% by weight of silicon, not more than 5.0% by weight of manganese, not more than 0.04% by weight of phosphorus, not more than 0.03% by weight of sulfur, 10 to 18% by weight of nickel, 23 to 30% by weight of chromium and 0.30 to 0.45% by weight of nitrogen, the balance being iron and unavoidable impurities, and satisfying the condition of Ni % + 30 (C % + N %) .gtoreq. 20%.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: July 19, 1977
    Assignee: Nippon Steel Corporation
    Inventors: Tohru Muta, Hideo Abo, Sakae Noguchi