Patents by Inventor Toshiyuki Yoshimatsu

Toshiyuki Yoshimatsu 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).

  • Trusses and precast concrete slabs reinforced thereby
    Patent number: 5448866
    Abstract: A space truss is constructed of a pair of plane trusses. Each of the plane trusses is constructed of an upper and lower chord member fixedly connected with each other through a strut member interposed therebetween. The thus constructed plane trusses are oppositely disposed from each other in a condition in which the strut member of each of the plane trusses are interposed between the thus oppositely disposed plane trusses, the upper chord members of the plane trusses are closely disposed together, and the lower chord members of the plane trusses are spaced apart from each other. A sheet steel is fixedly connected to the space truss through a hanging hook to form a composite-type space truss. Any of these space trusses are embedded in concrete in the factory to form a precast reinforced concrerte slab.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: September 12, 1995
    Assignees: Kajima Corporation, Hory Corporation Co., Ltd.
    Inventors: Makoto Saito, Toshiyuki Yoshimatsu, Kansuke Homma, Itaru Saito, Riyouichi Nakajima