Patents by Inventor Kiyobumi Sugawara

Kiyobumi Sugawara 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).

  • Junction structure between steel member and structural member
    Patent number: 5410847
    Abstract: A junction for connecting a steel member to a structural member, such as a beam in a steel framed construction to a column in a reinforced concrete construction, a steel framed concrete construction or a steel framed construction. Junction hardware connect to the steel member and a rod-like orthogonal metal connector is provided in concrete structural members. The elements are connected by tightening bolts or by screw joints through a coupler. Since the metal connector is in a form of rod, the concrete member has a high packing property. Field welding work is omitted by connecting the metal connector to the junction hardware by a bolt connection method or by a screw joint method to facilitate assembly.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: May 2, 1995
    Assignee: Kajima Corporation
    Inventors: Yasuo Okawa, Akiyoshi Ito, Hiroshi Hayasaka, Toshio Saeki, Naoki Tanaka, Kiyobumi Sugawara