Patents by Inventor Ryutaro Jimbou

Ryutaro Jimbou 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).

  • Diffusion bonding method using a high energy beam
    Patent number: 4691856
    Abstract: Disclosed is a diffusion bonding method which can be applied to superalloys and comprises forming in advance an alloy layer containing an additional element or elements having a higher diffusion speed than that of the principal constituent element of a base metal and a lower melting point than that of the base metal on the joint surface of the base metal consisting of a heat-resistant superalloy based on Co, Ni, Fe, Ti or the like, and bringing the joint surfaces into contact so as to diffuse B.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: September 8, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Haramaki, Takao Funamoto, Satoshi Kokura, Masahisa Inagaki, Ryutaro Jimbou, Toshimi Sasaki, Kousei Nagayama