Patents by Inventor Takakiyo Aoki

Takakiyo Aoki 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).

  • Patent number: 4764224
    Abstract: A baked flux of high basicity for submerged arc welding which has a chemical composition suitable for use in universal combination with various types of welding wires in welding low alloying steels. The baked flux reduces the oxygen content and diffusible hydrogen content of the weld metal to form a weld metal having a high toughness, enables forming regular beads without causing weld defects such as lack of fusion and slag inclusion, and facilitates welding work. The performance of baked fluxes is described in comparison with that of the conventional baked fluxes.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: August 16, 1988
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Naoki Okuda, Yutaka Nishikawa, Takakiyo Aoki
  • Patent number: 4465921
    Abstract: A flux-cored welding electrode for gas-shielded arc welding comprising a mild steel sheath and a flux core, said flux core having the following composition based on the total weight of the electrode:TiO.sub.2 -4 to 8.5%Mg-0.2 to 0.8%Ti-0.03 to 0.7%B-0.002 to 0.025%Mn-1.0 to 3.0%Si-0.01 to 1.2%Metal fluorides-0.1 to 0.30% as F-contentOxides-not more than 8.5%, including TiO.sub.2.
    Type: Grant
    Filed: June 3, 1982
    Date of Patent: August 14, 1984
    Assignee: Kobe Steel, Limited
    Inventors: Yoshiya Sakai, Yasuhiro Nagai, Kazuo Ikemoto, Takakiyo Aoki, Hidehiko Kanehira