Patents by Inventor Ryuuji Tou

Ryuuji Tou 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).

  • Rotor of an electric motor and method of manufacturing the same
    Patent number: 7923889
    Abstract: In a manufacturing method of a rotor for an electric motor including: a core (4) formed of stacked steel plates, each of which has a center hole (4a); and a shaft (3) inserted through the center hole (4a) of the core (4), the shaft (3) is deformed to fit a second end plate (2) in a state where the second end plate (2) is pressed against the core (4), and a deformed portion (3e) of the shaft (3) that engages with an edge (2a, 2b) of the second end plate (2) is deformed along a core-side edge portion (2a) and a no core-side edge portion (2b) of the edge (2a, 2b) of the second end plate (2) so that the deformed portion (3e) is deformed into the deformed shape that fits the shape of the edge (2a, 2b) of the second end plate (2).
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: April 12, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ryuuji Tou
  • ROTOR OF AN ELECTRIC MOTOR AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20110037340
    Abstract: In a manufacturing method of a rotor for an electric motor including: a core (4) formed of stacked steel plates, each of which has a center hole (4a); and a shaft (3) inserted through the center hole (4a) of the core (4), the shaft (3) is deformed to fit a second end plate (2) in a state where the second end plate (2) is pressed against the core (4), and a deformed portion (3e) of the shaft (3) that engages with an edge (2a, 2b) of the second end plate (2) is deformed along a core-side edge portion (2a) and a no core-side edge portion (2b) of the edge (2a, 2b) of the second end plate (2) so that the deformed portion (3e) is deformed into the deformed shape that fits the shape of the edge (2a, 2b) of the second end plate (2).
    Type: Application
    Filed: April 15, 2009
    Publication date: February 17, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ryuuji Tou