Patents by Inventor Yoshinori Iwanabe

Yoshinori Iwanabe 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).

  • Patent number: 12057736
    Abstract: When a laminated core is formed in an annular shape, a radially inner part of a contact surface formed by a projecting end of a first core piece and a recessed end of another first core piece that are adjacent in a circumferential direction, and a radially inner part of a contact surface formed by a projecting end of a second core piece and a recessed end of another second core piece that are adjacent in the circumferential direction, are positioned in a plane including a center axis of the annular laminated core.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: August 6, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takafumi Ichida, Kazuya Kumagai, Yuta Mori, Yoshinori Iwanabe
  • Publication number: 20210281127
    Abstract: When a laminated core is formed in an annular shape, a radially inner part of a contact surface formed by a projecting end of a first core piece and a recessed end of another first core piece that are adjacent in a circumferential direction, and a radially inner part of a contact surface formed by a projecting end of a second core piece and a recessed end of another second core piece that are adjacent in the circumferential direction, are positioned in a plane including a center axis of the annular laminated core.
    Type: Application
    Filed: April 15, 2019
    Publication date: September 9, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takafumi ICHIDA, Kazuya KUMAGAI, Yuta MORI, Yoshinori IWANABE
  • Patent number: 10804754
    Abstract: A permanent magnet embedded motor includes a cylindrical stator core disposed on an inner side of a cylindrical frame and configured by stacking a first annular core and a second annular core disposed to be adjacent to the first annular core in an axial direction of the frame, and a rotor disposed on an inner side of the stator core. The second annular core is fixed to the first annular core by using swaging portions formed in the second annular core, and adjacent first yokes are in contact with each other, while adjacent second yokes are separated from each other.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: October 13, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masahiro Nigo, Kazuchika Tsuchida, Sadami Okugawa, Yoshinori Iwanabe
  • Publication number: 20180212482
    Abstract: A permanent magnet embedded motor includes a cylindrical stator core disposed on an inner side of a cylindrical frame and configured by stacking a first annular core and a second annular core disposed to be adjacent to the first annular core in an axial direction of the frame, and a rotor disposed on an inner side of the stator core. The second annular core is fixed to the first annular core by using swaging portions formed in the second annular core, and adjacent first yokes are in contact with each other, while adjacent second yokes are separated from each other.
    Type: Application
    Filed: August 21, 2015
    Publication date: July 26, 2018
    Inventors: Masahiro NIGO, Kazuchika TSUCHIDA, Sadami OKUGAWA, Yoshinori IWANABE
  • Patent number: 5898250
    Abstract: The invention relates to a single-phase induction motor comprising a main winding, an auxiliary winding which is arranged so that an electrical angle of the auxiliary winding is different from that of the main winding, a plurality of driving capacitors which are connected to the auxiliary winding, a relay for controlling on/off of the driving capacitor in response to the driving load, and a rotor having apertures on the gap side of the slots. The invention further relates to a rotor assembling apparatus comprising a bush to which a rotor core assembly is inserted for die-casting, wherein a clearance between said bush and said rotor core assembly is narrower to the extent that said rotor core assembly can be taken out after die casting; and a core band having a clearance between the core band and the bush in the circumferential direction of said bush, said core band is engaged into said bush so that movement in the axis direction is restricted.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: April 27, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tatsuya Sugita, Takashi Yamamoto, Shinji Tamura, Tetsuya Mochizuki, Tokuo Tugei, Yoshinori Iwanabe
  • Patent number: 5861697
    Abstract: The invention relates to a single-phase induction motor comprising a main winding, an auxiliary winding which is arranged so that an electrical angle of the auxiliary winding is different from that of the main winding, a plurality of driving capacitors which are connected to the auxiliary winding, a relay for controlling on/off of the driving capacitor in response to the driving load, and a rotor having apertures on the gap side of the slots. The invention further relates to a rotor assembling apparatus comprising a bush to which a rotor core assembly is inserted for die-casting, wherein a clearance between said bush and said rotor core assembly is narrower to the extent that said rotor core assembly can be taken out after die casting; and a core band having a clearance between the core band and the bush in the circumferential direction of said bush, said core band is engaged into said bush so that movement in the axis direction is restricted.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: January 19, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tatsuya Sugita, Takashi Yamamoto, Shinji Tamura, Tetsuya Mochizuki, Tokuo Tugei, Yoshinori Iwanabe