Patents by Inventor Tadao Nagaoka

Tadao Nagaoka 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).

  • Mold casting process and apparatus and method for producing mechanical parts
    Patent number: 5263532
    Abstract: A mold casting process comprises, after pouring of a molten metal into a mold, rapidly cooling that surface layer of a cast product which is in contact with a mold, and releasing the resulting product from the mold when the surface layer thereof has been converted into a shell-like solidified layer. Such process is used for casting a mechanical part blank and apparatus for carrying out the process is provided.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: November 23, 1993
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masatoshi Kawaguchi, Norio Tajima, Setsumi Hatanaka, Hiroshi Yoshinaga, Masahiro Inoue, Tadao Nagaoka, Hiromu Okunishi, Masaaki Kurosawa, Hideaki Ikeda, Takeshi Ooba, Nobuki Matsuo, Hiroshi Onda
  • Method of producing mechanical parts by mold casting
    Patent number: 5065810
    Abstract: A mold casting process comprises, after pouring of a molten metal into a mold, rapidly cooling that surface layer of a cast product which is in contact with a mold, and releasing the resulting product from the mold when the surface layer thereof has been converted into a shell-like solidified layer. Such process is used for casting a mechanical part blank and apparatus for carrying out the process is provided.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: November 19, 1991
    Assignee: Honda Giken Kogyo K.K.
    Inventors: Masatoshi Kawaguchi, Norio Tajima, Setsumi Hatanaka, Hiroshi Yoshinaga, Masahiro Inoue, Tadao Nagaoka, Hiromu Okunishi, Masaaki Kurosawa, Hideaki Ikeda, Takeshi Ooba, Nobuki Matsuo, Hiroshi Onda
  • Mold casting process and apparatus, and method for producing mechanical parts
    Patent number: 4971134
    Abstract: A mold casting process comprises, after pouring of a molten metal into a mold, rapidly cooling that surface layer of a cast product which is in contact with a mold, and releasing the resulting product from the mold when the surface layer thereof has been converted into a shell-like solidified layer. Such process is used for casting a mechanical part blank and apparatus for carrying out the process is provided.
    Type: Grant
    Filed: January 13, 1988
    Date of Patent: November 20, 1990
    Assignee: Honda Giken Kogyo K.K.
    Inventors: Masatoshi Kawaguchi, Norio Tajima, Setsumi Hatanaka, Hiroshi Yoshinaga, Masahiro Inoue, Tadao Nagaoka, Hiromu Okunishi, Masaaki Kurosawa, Hideaki Ikeda, Takeshi Ooba, Nobuki Matsuo, Hiroshi Onda