Patents by Inventor Rikuto TAKAGI

Rikuto TAKAGI 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).

  • Stator of a motor
    Patent number: 11502586
    Abstract: An arm of a coil segment having an approximate U shape is placed in a slot of a stator core, and a portion protruding from the slot is bent in a circumferential direction. An arm is bent in a direction of an arrow A, and another arm positioned at an inner side in the radial direction in relation to this arm is bent in a direction of an arrow B. The arm positioned at the outer side has at least a part of a bending inner side surface of a bent portion hardened by pressurization.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: November 15, 2022
    Assignee: TOYOA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yu Takanezawa, Daisuke Mizushima, Rikuto Takagi
  • METHOD OF MANUFACTURING A STATOR OF A MOTOR
    Publication number: 20210376697
    Abstract: An arm of a coil segment having an approximate U shape is placed in a slot of a stator core, and a portion protruding from the slot is bent in a circumferential direction. An arm is bent in a direction of an arrow A, and another arm positioned at an inner side in the radial direction in relation to this arm is bent in a direction of an arrow B. The arm positioned at the outer side has at least a part of a bending inner side surface of a bent portion hardened by pressurization.
    Type: Application
    Filed: August 13, 2021
    Publication date: December 2, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yu TAKANEZAWA, Daisuke MIZUSHIMA, Rikuto TAKAGI
  • Method of manufacturing a stator of a motor
    Patent number: 11146153
    Abstract: An arm of a coil segment having an approximate U shape is placed in a slot of a stator core, and a portion protruding from the slot is bent in a circumferential direction. An arm is bent in a direction of an arrow A, and another arm positioned at an inner side in the radial direction in relation to this arm is bent in a direction of an arrow B. The arm positioned at the outer side has at least a part of a bending inner side surface of a bent portion hardened by pressurization.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: October 12, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yu Takanezawa, Daisuke Mizushima, Rikuto Takagi
  • Crash box and its manufacturing method
    Patent number: 10894523
    Abstract: A crash box capable of easily deforming into a bellows shape and absorbing impact energy more reliably, and its manufacturing method are provided. The present disclosure is applied to a crash box which is partly deformed in an axial direction to absorb impact energy when the crash box receives an impact in the axial direction. A first layer made of metal and a second layer made of metal containing a larger volume of bubbles than that of the first layer are alternately formed in the axial direction in the crash box according to the present disclosure.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: January 19, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Ikuta, Yu Takanezawa, Rikuto Takagi, Mitsutaka Yoshida
  • STATOR OF MOTOR AND MANUFACTURING METHOD THEREOF
    Publication number: 20190372438
    Abstract: An aim of a coil segment having an approximate U shape is placed in a slot of a stator core, and a portion protruding from the slot is bent in a circumferential direction. An arm is bent in a direction of an arrow A, and another arm positioned at an inner side in the radial direction in relation to this arm is bent in a direction of an arrow B. The arm positioned at the outer side has at least a part of a bending inner side surface of a bent portion hardened by pressurization.
    Type: Application
    Filed: May 21, 2019
    Publication date: December 5, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yu TAKANEZAWA, Daisuke Mizushima, Rikuto Takagi
  • CRASH BOX AND ITS MANUFACTURING METHOD
    Publication number: 20190135211
    Abstract: A crash box capable of easily deforming into a bellows shape and absorbing impact energy more reliably, and its manufacturing method are provided. The present disclosure is applied to a crash box which is partly deformed in an axial direction to absorb impact energy when the crash box receives an impact in the axial direction. A first layer made of metal and a second layer made of metal containing a larger volume of bubbles than that of the first layer are alternately formed in the axial direction in the crash box according to the present disclosure.
    Type: Application
    Filed: October 2, 2018
    Publication date: May 9, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki IKUTA, Yu TAKANEZAWA, Rikuto TAKAGI, Mitsutaka YOSHIDA