Patents by Inventor Keishirou MAKI

Keishirou MAKI 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).

  • Structure of electrical connection portion, rotor and motor that apply same structure, and method for forming electrical connection portion
    Patent number: 10707729
    Abstract: The present invention is a structure of an electrical connection portion formed by thermal bonding of a terminal 53 of a current-carrying component 50 of a motor and a winding wire 30. The terminal 53 includes a lock portion 53a positioned on a base end side and a fusion portion 53b positioned on a distal end side. The winding wire 30 includes a binding portion 31 wound around the lock portion 53a and has a one end portion 36 coupled to a molten ball 55 generated at the fusion portion 53b; and a coupling wire portion 33 tightly stretched from a main winding wire portion 34 of the motor disposed in a wound state and continuous to the other end portion of the binding portion 31. The one end portion 36 of the binding portion 31 is in a state where tension pulling the coupling wire portion 33 to the main winding wire portion 34 side does not act.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: July 7, 2020
    Assignee: MABUCHI MOTOR CO., LTD.
    Inventors: Shou Nakayama, Yoshiaki Maeda, Takeshi Hirano, Kenji Muneda, Keishirou Maki
  • STRUCTURE OF ELECTRICAL CONNECTION PORTION, ROTOR AND MOTOR THAT APPLY SAME STRUCTURE, AND METHOD FOR FORMING ELECTRICAL CONNECTION PORTION
    Publication number: 20180026499
    Abstract: The present invention is a structure of an electrical connection portion formed by thermal bonding of a terminal 53 of a current-carrying component 50 of a motor and a winding wire 30. The terminal 53 includes a lock portion 53a positioned on a base end side and a fusion portion 53b positioned on a distal end side. The winding wire 30 includes a binding portion 31 wound around the lock portion 53a and has a one end portion 36 coupled to a molten ball 55 generated at the fusion portion 53b; and a coupling wire portion 33 tightly stretched from a main winding wire portion 34 of the motor disposed in a wound state and continuous to the other end portion of the binding portion 31. The one end portion 36 of the binding portion 31 is in a state where tension pulling the coupling wire portion 33 to the main winding wire portion 34 side does not act.
    Type: Application
    Filed: September 13, 2017
    Publication date: January 25, 2018
    Applicant: MABUCHI MOTOR CO., LTD.
    Inventors: Shou NAKAYAMA, Yoshiaki MAEDA, Takeshi HIRANO, Kenji MUNEDA, Keishirou MAKI