Patents by Inventor Shun TOMARU

Shun TOMARU 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).

  • Electromagnetic connecting device
    Patent number: 10473167
    Abstract: An electromagnetic clutch includes a field core including a coil storage groove, and a rotor including a core storage groove. The coil storage groove is formed by an inner cylindrical portion, an outer cylindrical portion, and a bottom portion. The bottom portion of the field core wholly projects to the outside of the core storage groove. The outer peripheral surface of the inner cylindrical portion and the inner peripheral surface of the outer cylindrical portion include a first transition surface and a second transition surface, respectively, on the bottom portion side. Each of the first transition surface and the second transition surface includes a tilting surface that gradually narrows the groove width of the coil storage groove along with an increase in a distance from the side of the opening of the coil storage groove.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: November 12, 2019
    Assignee: OGURA CLUTCH CO., LTD.
    Inventors: Motoi Kato, Yoshihiro Kurosu, Yasuyuki Iizuka, Shun Tomaru
  • ELECTROMAGNETIC CONNECTING DEVICE
    Publication number: 20180209490
    Abstract: An electromagnetic clutch includes a field core including a coil storage groove, and a rotor including a core storage groove. The coil storage groove is formed by an inner cylindrical portion, an outer cylindrical portion, and a bottom portion. The bottom portion of the field core wholly projects to the outside of the core storage groove. The outer peripheral surface of the inner cylindrical portion and the inner peripheral surface of the outer cylindrical portion include a first transition surface and a second transition surface, respectively, on the bottom portion side. Each of the first transition surface and the second transition surface includes a tilting surface that gradually narrows the groove width of the coil storage groove along with an increase in a distance from the side of the opening of the coil storage groove.
    Type: Application
    Filed: January 23, 2018
    Publication date: July 26, 2018
    Inventors: Motoi KATO, Yoshihiro KUROSU, Yasuyuki IIZUKA, Shun TOMARU