Patents by Inventor Yasunori OONO

Yasunori OONO 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).

  • Transformer
    Patent number: 10403427
    Abstract: A transformer of the invention includes a core which includes a main leg, a side leg, and a yoke, and a winding wire (5) which is wound around the main leg of the core, inside a tank (40) which is filled with an insulating medium, the main leg of the core includes a main wound core (1) having a square cross-section which is formed by winding the amorphous magnetic ribbon and a sub wound core (2) constituted by silicon steel plates which are stacked with curvatures provided at four sides thereof, and a cross-section of a part, where the winding wire (5) is disposed, in the main leg is approximately a circular shape.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: September 3, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Yasunori Oono, Naoya Miyamoto, Akira Yamagishi
  • Transformer
    Publication number: 20180040409
    Abstract: A transformer of the invention includes a core which includes a main leg, a side leg, and a yoke, and a winding wire (5) which is wound around the main leg of the core, inside a tank (40) which is filled with an insulating medium, the main leg of the core includes a main wound core (1) having a square cross-section which is formed by winding the amorphous magnetic ribbon and a sub wound core (2) constituted by silicon steel plates which are stacked with curvatures provided at four sides thereof, and a cross-section of a part, where the winding wire (5) is disposed, in the main leg is approximately a circular shape.
    Type: Application
    Filed: February 3, 2016
    Publication date: February 8, 2018
    Inventors: Yasunori OONO, Naoya MIYAMOTO, Akira YAMAGISHI