Patents by Inventor Katsumi Hayami

Katsumi Hayami 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).

  • Method of manufacturing permanent-magnet synchronous motor
    Patent number: 8601671
    Abstract: In a combination of, for example, a rotor having eight magnetic poles and a stator having twelve slots and pulsating components of permeance, which generate a sinusoidal cogging torque having maxima of the same number as the number of poles of the rotor, pressurizing parts arranged in predetermined positions, applying a force at an outer periphery of the stator and directed inwardly cancels the pulsating components of the cogging torque.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: December 10, 2013
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yukari Toide, Akihiro Daikoku, Masatsugu Nakano, Hideaki Arita, Shinichi Yamaguchi, Moriyuki Hazeyama, Takashi Yoshioka, Tomohiro Kikuchi, Katsumi Hayami, Takashi Miyazaki
  • METHOD OF MANUFACTURING PERMANENT-MAGNET SYNCHRONOUS MOTOR
    Publication number: 20120304453
    Abstract: In a combination of, for example, a rotor having eight magnetic poles and a stator having twelve slots and pulsating components of permeance, which generate a sinusoidal cogging torque having maxima of the same number as the number of poles of the rotor, pressurizing parts arranged in predetermined positions, applying a force at an outer periphery of the stator and directed inwardly cancels the pulsating components of the cogging torque.
    Type: Application
    Filed: August 15, 2012
    Publication date: December 6, 2012
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Yukari Toide, Akihiro Daikoku, Masatsugu Nakano, Hideaki Arita, Shinichi Yamaguchi, Moriyuki Hazeyama, Takashi Yoshioka, Tomohiro Kikuchi, Katsumi Hayami, Takashi Miyazaki
  • METHOD OF MANUFACTURING PERMANENT-MAGNET SYNCHRONOUS MOTOR
    Publication number: 20110047782
    Abstract: In a combination of, for example, a rotor having eight magnetic poles and a stator having twelve slots and pulsating components of permeance, which generate a sinusoidal cogging torque having maxima of the same number as the number of poles of the rotor, pressurizing parts arranged in predetermined positions, applying a force at an outer periphery of the stator and directed inwardly cancels the pulsating components of the cogging torque.
    Type: Application
    Filed: November 10, 2010
    Publication date: March 3, 2011
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Yukari Toide, Akihiro Daikoku, Masatsugu Nakano, Hideaki Arita, Shinichi Yamaguchi, Moriyuki Hazeyama, Takashi Yoshioka, Tomohiro Kikuchi, Katsumi Hayami, Takashi Miyazaki
  • Method of manufacturing permanent-magnet synchronous motor
    Patent number: 7849584
    Abstract: In a combination of, for example, a rotor having eight magnetic poles and a stator having twelve slots and pulsating components of permeance, which generate a sinusoidal cogging torque having maxima of the same number as the number of poles of the rotor, pressurizing parts arranged in predetermined positions, applying a force at an outer periphery of the stator and directed inwardly cancels the pulsating components of the cogging torque.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: December 14, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yukari Toide, Akhiro Daikoku, Masatsugu Nakano, Hideaki Arita, Shinichi Yamaguchi, Moriyuki Hazeyama, Takashi Yoshioka, Tomohiro Kikuchi, Katsumi Hayami, Takashi Miyazaki
  • METHOD OF MANUFACTURING PERMANENT-MAGNET SYNCHRONOUS MOTOR
    Publication number: 20090064486
    Abstract: In a combination of, for example, a rotor having eight magnetic poles and a stator having twelve slots and pulsating components of permeance, which generate a sinusoidal cogging torque having maxima of the same number as the number of poles of the rotor, pressurizing parts arranged in predetermined positions, applying a force at an outer periphery of the stator and directed inwardly cancels the pulsating components of the cogging torque.
    Type: Application
    Filed: November 12, 2008
    Publication date: March 12, 2009
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Yukari Toide, Akihiro Daikoku, Masatsugu Nakano, Hideaki Arita, Shinichi Yamaguchi, Moriyuki Hazeyama, Takashi Yoshioka, Tomohiro Kikuchi, Katsumi Hayami, Takashi Miyazaki
  • Permanent-magnet synchronous motor
    Patent number: 7466055
    Abstract: In a combination of, for example, a rotor having eight magnetic poles and a stator having twelve slots and pulsating components of permeance, which generate a sinusoidal cogging torque having maxima of the same number as the number of poles of the rotor, pressurizing parts arranged in predetermined positions applying a force at an outer periphery of the stator directed inwardly to cancel the pulsating components of the cogging torque.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: December 16, 2008
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yukari Toide, Akihiro Daikoku, Masatsugu Nakano, Hideaki Arita, Shinichi Yamaguchi, Moriyuki Hazeyama, Takashi Yoshioka, Tomohiro Kikuchi, Katsumi Hayami, Takashi Miyazaki
  • Permanent-magnet type synchronization motor and method of manufacturing thereof
    Publication number: 20060049713
    Abstract: In a combination of, for example, a rotor having eight magnetic poles and a stator having twelve slots and pulsating components of permeance, which generate a sinusoidal cogging torque having maxima of the same number as the number of poles of the rotor, pressurizing parts arranged in predetermined positions applying a force at an outer periphery of the stator directed inwardly to cancel the pulsating components of the cogging torque.
    Type: Application
    Filed: August 26, 2004
    Publication date: March 9, 2006
    Inventors: Yukari Toide, Akihiro Daikoku, Masatsugu Nakano, Hideaki Arita, Shinichi Yamaguchi, Moriyuki Hazeyama, Takashi Yoshioka, Tomohiro Kikuchi, Katsumi Hayami, Takashi Miyazaki