Patents by Inventor Youji Takeda

Youji Takeda 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).

  • Turbine wheel of turbocharger
    Publication number: 20080193296
    Abstract: A hot wheel of a turbocharger formed by precision casting, including a shaft-shaped hub part disposed at a radially central portion thereof; a plurality of vane parts formed on a periphery of the hub part; an wrench boss formed at a top end of the hub part; and a boss portion formed at a bottom end of the hub part. In the hot wheel having the above-described construction, with an outer configuration of a necessary portion of each of the hub part, the wrench boss, and the boss portion maintained, a cavity open outward is formed at a radially central portion of the hub part with the cavity symmetrically penetrated through the wrench boss.
    Type: Application
    Filed: February 12, 2007
    Publication date: August 14, 2008
    Applicant: DAIDO CASTINGS CO., LTD.
    Inventors: Youji Takeda, Takashi Ito, Hidemi Kawashiri