Patents by Inventor Masaya Inoue

Masaya Inoue 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).

  • Embedded permanent magnet rotary electric machine
    Patent number: 9735631
    Abstract: Permanent magnets that constitute the single magnetic poles are constituted by n permanent magnet segments, the n permanent magnet segments being configured such that shapes and directions of orientation thereof have mirror symmetry relative to a plane that passes through a magnetic pole center and that includes a central axis of the rotor core, and being oriented such that a permanent magnet segment that is further away from the magnetic pole center in a circumferential direction has a smaller angle of orientation, and the permanent magnet segment that is positioned further away from the magnetic pole center in the circumferential direction being produced so as to have an approximately fan-shaped cross-sectional shape in which a radial width is wider than a circumferential width.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: August 15, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinsuke Kayano, Masaya Inoue, Shinji Nishimura, Moriyuki Hazeyama, Takuma Sasai
  • Rotor structure of rotary electric machine
    Patent number: 9729019
    Abstract: Provided is a rotor structure of a rotary electric machine, which is easily adaptable to offer a wide variety of products. The rotor structure of a rotary electric machine includes at least: a rotor shaft (3); a rotor core including a first rotor core section (15) and a second rotor core section (17); a boss section (9); and a pressurizing section. The second rotor core section and the boss section are arranged on an outer circumference of the rotor shaft. The first rotor core section is arranged on an outer circumference of the boss section. The pressurizing section is positioned on an axially outer side of the rotor core. The second rotor core section is pressurized by an abutment surface of the boss section. The first rotor core section arranged on the boss section is pressurized by the pressurizing section.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: August 8, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Ryuichi Shimomura, Masaya Inoue
  • Rotary electric machine having shifted winding wire
    Patent number: 9722466
    Abstract: A rotary electric machine includes a stator in which a plurality of armatures each have a coil formed by a winding wire wound in plural layers around bobbins mounted to a magnetic pole tooth, which are disposed annularly on an inner circumference of a cylindrical frame. The coil is formed by the winding wire being wound with a constant feed pitch in parallel with slots of the bobbins in plural layers. The winding wire forming a first layer of the coil is shifted by half the feed pitch between a left side and a right side of a center axis of the coil as viewed from a plane perpendicular to a stacking direction of a stacked iron core.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 1, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hironori Tsuiki, Shinichiro Yoshida, Yutaro Shirai, Hiroyuki Akita, Masaya Inoue, Daisuke Shijo, Shogo Okamoto
  • Method for manufacturing a winding body that is used in an armature winding for an electric machine
    Patent number: 9680358
    Abstract: A method for manufacturing a winding body includes: a bulging portion forming step in which bulging portions are formed by bending at a set pitch on a conductor wire; a crank portion forming step in which the crank portions are formed by bending on central portions of the bulging portions; an inclined portion and rectilinear portion forming step in which inclined portions and rectilinear portions are formed by bending on the conductor wire on which the bulging portions are formed at a set pitch and on which the crank portions are formed on each of the bulging portions after completion of the bulging portion forming step and the crank portion forming step; and a circular arc portion forming step in which the inclined portions are bent and formed into a circular arc shape.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: June 13, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hironori Tsuiki, Hiroyuki Akita, Atsushi Sakaue, Masaya Inoue
  • Rectangular wire edgewise-bending processing device and rectangular wire edgewise-bending processing method
    Patent number: 9646764
    Abstract: Provided is a rectangular wire edgewise-bending processing device for performing an edgewise-bending process for a rectangular wire to form a coil, the rectangular wire edgewise-bending processing device including a fixing unit for fixing the rectangular wire, a pressing tool for pressing a surface formed by a long side of a rectangular cross section of the rectangular wire, and a bending tool for bending the rectangular wire into a predetermined coil shape, wherein the edgewise-bending process is performed while the surface formed by the long side of the rectangular cross section of the rectangular wire is pressed.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: May 9, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yutaro Shirai, Hiroyuki Akita, Atsushi Sakaue, Shinichiro Yoshida, Masaya Inoue
  • Rotary electric machine
    Patent number: 9641036
    Abstract: A U-phase coil that constitutes an armature winding includes four (first through fourth) small coil groups U101, U102, U201, and U202 that make one round circumferentially, that are formed by connecting in series in order of circumferential arrangement winding bodies that are housed in slot pairs that are separated by 360 electrical degrees. The U-phase coil is configured into a parallel circuit in which the first and fourth small coil groups U101 and U202, which are connected in series, and the second and third small coil groups U102 and U201, which are connected in series, are connected in parallel by linking together winding ends within a radially inner winding end group using crossover wires 711 and 721, and by linking together winding ends within a radially outer winding end group using a crossover wire 821.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: May 2, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hironori Tsuiki, Atsushi Sakaue, Hiroyuki Akita, Masaya Inoue
  • Method for manufacturing an armature winding for an electric machine
    Patent number: 9634548
    Abstract: In this method for manufacturing an armature winding for an electric machine, a rectangular conductor wire is wound helically by bending and shaping linking portions between rectilinear portions and coil ends to set angles while feeding the rectangular conductor wire, by repeating steps in which the rectangular conductor wire is fed by a set amount of feeding, the rectangular conductor wire is gripped and fixed by first through fourth chucks, the rectangular conductor wire is bent by pressing a first former near a root of the rectangular conductor wire, and gripping and fixing of the rectangular conductor wire by the first through fourth chucks is released.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: April 25, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hironori Tsuiki, Hiroyuki Akita, Atsushi Sakaue, Masaya Inoue
  • Rotary electric machine with a pair of interfitting portions, rotary electric machine stator, and rotary electric machine stator manufacturing method
    Patent number: 9608499
    Abstract: An insulator includes: a trunk portion that is interposed between a tooth and a stator coil; and a first flange portion that is disposed on the trunk portion so as to be adjacent to the stator coil in a radial direction of a stator core. A notch portion is disposed on a flange protruding portion of the first flange portion that protrudes from the stator core in the axial direction of the stator core from an outer circumferential portion of the flange protruding portion toward the trunk portion. A holder that has a holder main body that is disposed on the notch portion is mounted onto the flange protruding portion. A temperature sensor is held between the holder main body and the stator coil.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: March 28, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tomohiro Bessho, Ryuji Kitamura, Katsunari Takagi, Masaya Inoue
  • Rotary electric machine
    Patent number: 9595851
    Abstract: Permanent magnets that form individual magnetic poles are configured by arranging three magnet blocks to be spaced apart from each other circumferentially, the three magnet blocks are each formed such that cross-sectional shapes that are perpendicular to a central axis of a rotor core are radially outwardly convex, and circumferential widths are narrower in magnet blocks that are further away from a magnetic pole center, and the three magnet blocks that are arranged circumferentially are formed to have mirror symmetry relative to a plane that passes through the magnetic pole center and the central axis of the rotor core.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: March 14, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Moriyuki Hazeyama, Takuma Sasai, Shinsuke Kayano, Masaya Inoue, Shinji Nishimura, Akihiro Daikoku
  • ROTARY ELECTRIC MACHINE
    Publication number: 20170063201
    Abstract: Provided is an electric motor capable of cooling a stator without being increased in size with a small number of components and even with simple work. The electric motor includes ring-shaped sealing members (34) having flexibility and being arranged on an inner diameter side of a stator coil (22) so as to surround inner diameter portions of coil ends. Cooling oil flowing from an upper part of a housing into the housing flows downward through coil end oil paths (37, 38) formed by the sealing members (34), coil end covers (32, 33), and the coil ends.
    Type: Application
    Filed: February 11, 2016
    Publication date: March 2, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshiaki KITTA, Manabu YOSHINORI, Tadashi MURAKAMI, Yukitaka SAKATA, Katsunari TAKAGI, Koichi OJIMA, Masaya INOUE
  • Permanent magnet embedded rotary electric machine
    Patent number: 9570950
    Abstract: A permanent magnet embedded rotary electric machine includes: permanent magnets 23 respectively accommodated in the magnet accommodation holes 25. In the magnet accommodation hole 25, a portion of each permanent magnet 23 corresponding to the radially outer side of the rotor iron core 21 is fixed to the rotor iron core 21, and a refrigerant passage 27 is formed, in a shaft direction of the rotor iron core 21, between the rotor iron core 21 and a portion of the permanent magnet 23 corresponding to the radially inner side of the rotor iron core 21. Protrusions 28 are provided, perpendicularly to a passing direction of a refrigerant, on an exposed portion 21a of the rotor iron core 21 in the refrigerant passage 27.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: February 14, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaki Horii, Masaya Inoue, Yoshiaki Kitta
  • Rotary electric machine
    Patent number: 9570953
    Abstract: A rotary electric machine includes: a stator around which a coil is wound; a frame which fixes the stator; a rotor which faces the stator via a slight air gap; a shaft which is fixed to the rotor and is rotatably and removably supported via a bearing; and a bracket which supports the bearing inside a bearing box. The rotary electric machine includes: an insulating member which is mounted inside the bearing box of the bracket; a metal holder which is mounted inside the insulating member with a predetermined clearance with respect to an outer ring of the bearing, and supports the bearing; and a pressing body which is mounted between the side surface of the metal holder and the side surface of the outer ring of the bearing.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: February 14, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Soichi Sato, Masaya Inoue, Koichi Ojima, Keigo Maeda
  • Inverter-integrated driving module and manufacturing method therefor
    Patent number: 9539909
    Abstract: Phase coils are each configured by winding a conductor wire in a concentrated winding consecutively on three circumferentially consecutive tooth portions, six inverter units of an inverter module are each disposed in close proximity to a motor so as to face each of the phase coils axially, and the motor and the inverter module are electrically connected by connecting an alternating-current output terminals of each of the plurality of inverter units to output wires of the phase coils that face the inverter units axially.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: January 10, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Moriyuki Hazeyama, Yoshihiro Miyama, Masaya Inoue, Yoshiko Obiraki, Tatsuya Kitamura
  • ROTARY ELECTRIC MACHINE
    Publication number: 20160380492
    Abstract: A contour line on the outer circumferential side of each magnet hole in the first layer is formed to be an arc passing through a total of three intersections, i.e., an intersection of a d axis and a reference magnetic flux line which is a magnetic flux line as a reference positioned inward by a predetermined number of magnetic flux lines from the outer circumferential edge of a rotor core, and intersections of: the reference magnetic flux line; and sides at the circumferential ends of the magnet hole which are positioned inward by a bridge dimension from the outer circumferential edge of the rotor core. Thus, a rotary electric machine that enables maximum utilization of reluctance torque and magnet torque and suppression of torque ripple can be obtained with simple processing and low cost.
    Type: Application
    Filed: December 15, 2014
    Publication date: December 29, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Sachiko KAWASAKI, Kimiyasu FURUSAWA, Atsushi SAKAUE, Akira HASHIMOTO, Hiroyuki AKITA, Moriyuki HAZEYAMA, Masaya INOUE, Shinji NISHIMURA
  • ROTARY ELECTRIC MACHINE
    Publication number: 20160322876
    Abstract: Winding bodies are produced by repeatedly winding a ?-shaped coil pattern that is formed by inserting the conductor wire sequentially into a second slot, a first slot, a second slot, and a third slot, so as to alternate an axial direction of insertion into the first slot, the second slot, and the third slot, for two turns in a radial direction, and are configured such that a plurality of rectilinear portions that are respectively inserted into the first slot, the second slot, and the third slot are linked continuously by coil end portions, and a liquid coolant is supplied to a coil end that is constituted by the coil end portions.
    Type: Application
    Filed: January 17, 2014
    Publication date: November 3, 2016
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masaki HORII, Atsushi SAKAUE, Masaya INOUE
  • ELECTRIC ROTATING MACHINE
    Publication number: 20160294257
    Abstract: An electric rotating machine that can raise the utilization efficiency of cooling oil is obtained. In an rotation axle, there are provided an oil flow path having a predetermined length from an end of the rotation axle and a flow path hole that communicates with the oil flow path and has an opening toward the inside of the electric rotating machine; a supporting member includes a cylinder section and a disk section that partitions the cylinder section in the axis direction, and a discharging hole is provided at an end of the cylinder section; between the flow path hole and the discharging hole, there is provided a partition plate that encloses a space formed by the supporting member and the rotation axle and guides cooling oil traveling from the flow path hole to the inside of the electric rotating machine to the discharging hole.
    Type: Application
    Filed: May 21, 2015
    Publication date: October 6, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tadashi MURAKAMI, Yukitaka SAKATA, Yoshiaki KITTA, Katsunari TAKAGI, Koichi OJIMA, Masaya INOUE
  • ARMATURE FOR AN ELECTRIC MACHINE
    Publication number: 20160268860
    Abstract: An armature for an electric machine according to the present invention includes: an armature core in which a plurality of slots are arranged in a circumferential direction; and an armature winding that is mounted to the armature core, and includes a plurality of two-lane winding bodies that are each produced by stacking and winding two jointless continuous conductor wires that are coated with insulation such that the two conductor wires are stacked in a radial direction of the armature core, the two-lane winding bodies being arranged at a pitch of one slot in a circumferential direction so as to be mounted into a third slot, a first slot, and a second slot that line up consecutively in the circumferential direction at an angular spacing of six slots.
    Type: Application
    Filed: July 7, 2014
    Publication date: September 15, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hironori TSUIKI, Atsushi SAKAUE, Akira HASHIMOTO, Hiroyuki AKITA, Masaya INOUE
  • EMBEDDED PERMANENT MAGNET ROTARY ELECTRIC MACHINE
    Publication number: 20160261158
    Abstract: A coolant flow channel is formed so as to pass axially through a rotor core radially inside magnet housing apertures, a linking flow channel is formed so as to have a flow channel width that is narrower than a maximum flow channel width of the coolant flow channel, so as to link the coolant flow channel and the magnet housing apertures, and so as to pass axially through the rotor core, and permanent magnets are fixed to an inner wall surface of the magnet housing apertures by an adhesive that is disposed only between a wall surface of the permanent magnets that is positioned on a radially outer side and the inner wall surface of the magnet housing apertures so as to expose a region of a wall surface of the permanent magnets that is positioned on a radially inner side that faces the linking flow channel.
    Type: Application
    Filed: December 13, 2013
    Publication date: September 8, 2016
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masaki HORII, Masaya INOUE, Yoshiaki KITTA
  • STATOR OF ROTARY ELECTRIC MACHINE AND ROTARY ELECTRIC MACHINE
    Publication number: 20160172921
    Abstract: A side surface at the outside of a plurality of teeth portions of one separated core is faced to a side surface of teeth portions of an adjacent separated core, so as to form a second slot which is straddled between the adjacent separated cores, and a first slot is formed by a plurality of teeth portions of one separated core, and a width size of the first slot is identical to a width size of the second slot, and coil conductor storage space is formed in the first slot via a first insulating component, and coil conductor storage space is formed in the second slot via a second insulating component, and a thickness size of the first insulating component is different from a thickness size of the second insulating component.
    Type: Application
    Filed: November 8, 2013
    Publication date: June 16, 2016
    Applicant: Mitsubishi Electric Corporation
    Inventors: Manabu YOSHINORI, Atsushi SAKAUE, Tatsuro HINO, Hironori TSUIKI, Shinichi OKADA, Hiroki SHIOTA, Masaya INOUE, Shogo OKAMOTO, Shinji NISHIMURA, Akira HASHIMOTO, Shinkichi SAWA, Yutaka IKURA, Ryuichi KITORA
  • EMBEDDED PERMANENT MAGNET ROTARY ELECTRIC MACHINE
    Publication number: 20160149450
    Abstract: A permanent magnet 21 is housed in a magnet housing aperture 20, an adhesive is disposed only between an outside wall surface 20a that is positioned on a radially outer side of an inner wall surface of the magnet housing aperture 20 and an outside surface 21a that is positioned on a radially outer side of a surface of the permanent magnet 21 such that the permanent magnet 21 is fixed so as to be closer to the outside wall surface 20a, and a cooling flow channel 23 through which a coolant is made to flow is formed by an inside surface 21b that is positioned on a radially inner side of the surface of the permanent magnet 21 and an inside wall surface 20b that is positioned on a radially inner side of the inner wall surface of the magnet housing aperture 20.
    Type: Application
    Filed: August 5, 2013
    Publication date: May 26, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masaki HORII, Masaya INOUE, Yoshiaki KITTA