Patents by Inventor Takehiro Kadonaka

Takehiro Kadonaka 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).

  • Bogie frame for railway vehicles
    Patent number: 9446775
    Abstract: A bogie frame for railway vehicles includes a pair of left and right side beams disposed along a direction of rails; a cross beam that connects the side beams to each other, and a mounting bracket for mounting a functional part, the mounting bracket being joined to the cross beam. The cross beam has a rectangular cross section and includes a top plate section, a bottom plate section, and a pair of side plate sections. The top plate section has a cutout opening extending to one of the side plate sections. The mounting bracket is inserted in the cutout opening and the mounting bracket and the top plate section are butt welded together. This configuration enhances welding workability for welding mounting brackets for mounting functional parts such as a traction motor, a gearbox, and a brake, and allows a greater degree of design flexibility in mounting the functional parts.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: September 20, 2016
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Tatsuya Yoshizu, Nobuaki Kaneyasu, Takehiro Kadonaka, Satoshi Tokunaga, Satoshi Kikko
  • BOGIE FRAME FOR RAILWAY VEHICLES
    Publication number: 20150203132
    Abstract: A bogie frame for railway vehicles includes a pair of left and right side beams disposed along a direction of rails; a cross beam that connects the side beams to each other, and a mounting bracket for mounting a functional part, the mounting bracket being joined to the cross beam. The cross beam has a rectangular cross section and includes a top plate section, a bottom plate section, and a pair of side plate sections. The top plate section has a cutout opening extending to one of the side plate sections. The mounting bracket is inserted in the cutout opening and the mounting bracket and the top plate section are butt welded together. This configuration enhances welding workability for welding mounting brackets for mounting functional parts such as a traction motor, a gearbox, and a brake, and allows a greater degree of design flexibility in mounting the functional parts.
    Type: Application
    Filed: July 17, 2013
    Publication date: July 23, 2015
    Inventors: Tatsuya Yoshizu, Nobuaki Kaneyasu, Takehiro Kadonaka, Satoshi Tokunaga, Satoshi Kikko