Patents by Inventor Toshinobu Yoneya

Toshinobu Yoneya 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).

  • Counterweight, and crankshaft with the counterweight
    Patent number: 10605328
    Abstract: A counterweight forms a crankshaft of an engine, and includes: an arm connecting a crank journal and crank pin of the crankshaft; a neck extending from a first connection face of the arm in a direction opposite to the crank pin; and a substantially fan-shaped weight continuous with a portion of the neck opposite to the crank journal. The weight has left and right shoulders continuous with the neck, and each of the shoulders is tilted to be away from the neck at an angle with respect to a horizontal line orthogonal to a crankshaft center when viewed along the crankshaft center, the angle being 15° or more and 22.5° or less.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: March 31, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Yasuyuki Imano, Masaki Fukuma, Satoshi Imamura, Hisashi Kajikawa, Toshinobu Yoneya, Ryoko Motohiro, Yuichi Someno, Takahiro Iwai
  • COUNTERWEIGHT, AND CRANKSHAFT WITH THE COUNTERWEIGHT
    Publication number: 20190040932
    Abstract: A counterweight forms a crankshaft of an engine, and includes: an arm connecting a crank journal and crank pin of the crankshaft; a neck extending from a first connection face of the arm in a direction opposite to the crank pin; and a substantially fan-shaped weight continuous with a portion of the neck opposite to the crank journal. The weight has left and right shoulders continuous with the neck, and each of the shoulders is tilted to be away from the neck at an angle with respect to a horizontal line orthogonal to a crankshaft center when viewed along the crankshaft center, the angle being 15° or more and 22.5° or less.
    Type: Application
    Filed: July 30, 2018
    Publication date: February 7, 2019
    Inventors: Yasuyuki Imano, Masaki Fukuma, Satoshi Imamura, Hisashi Kajikawa, Toshinobu Yoneya, Ryoko Motohiro, Yuichi Someno, Takahiro Iwai