Patents by Inventor Takeshi Izuma

Takeshi Izuma 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).

  • Pipe joint for connecting different kinds of metallic pipes
    Patent number: 4010965
    Abstract: A pipe joint for connecting an aluminum pipe to a stainless steel pipe, where the joint consists of washer layers of aluminum, titanium, nickel and stainless steel in this order, each being tightly bonded and integrated in the axial direction of the pipe joint into one assembly by explosion bonding.
    Type: Grant
    Filed: April 8, 1975
    Date of Patent: March 8, 1977
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Takeshi Izuma, Chiyoshi Fukumoto, Kazuhiko Yamaura