Patents by Inventor Akashi-shi Nakai

Akashi-shi Nakai 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).

  • Shovel-Type Construction Machine
    Publication number: 20190153700
    Abstract: The present invention aims to improve the strength of the portion of the swing frame for attaching the swing motor apparatus while reducing cost. A bottom plate of a swing frame is divided into a center bottom plate segment to which the swing motor apparatus mounting portion is attached, a front bottom plate segment that is positioned to the front side of the center bottom plate segment and to which the center joint mounting portion is attached, and a rear bottom plate segment positioned to the rear side of the center bottom plate segment, wherein: the center, front, and rear bottom plate segments and are formed integrally by welding; and the plate thickness of the center bottom plate segment is thicker than the plate thickness of the front bottom plate segment and the rear bottom plate segment.
    Type: Application
    Filed: May 12, 2017
    Publication date: May 23, 2019
    Applicant: Caterpillar SARL
    Inventors: Takeshi Tsuneyoshi, Takahiro Iwamoto, Takeshi Nakamura, Akashi-shi Nakai, Kentaro Nakayama, Dharmesh Kumar, Koichi Andatsu