Patents by Inventor Akira Hashimoto

Akira Hashimoto 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: 10164490
    Abstract: In a rotary electric machine according to the present invention, an armature winding includes a plurality of distributed winding bodies that are each produced by winding a single conductor wire that is insulated, that is jointless and continuous, and that has a constant cross-sectional area perpendicular to a longitudinal direction, the conductor wires include first through third coil end portions that link first through fourth rectilinear portions and first through fourth rectilinear portions, and are formed such that radial widths w? of the first through fourth rectilinear portions are wider than radial widths w of the first through third coil end portions.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: December 25, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hironori Tsuiki, Tatsuro Hino, Atsushi Sakaue, Akira Hashimoto, Kazunori Muto, Masashi Nakamura, Shinkichi Sawa, Hiroyuki Akita
  • Patent number: 10156020
    Abstract: The present invention provides a zinc alloy electroplating method comprising applying a current through an alkaline zinc alloy electroplating bath comprising a cathode and an anode, wherein a cathode region including the cathode and an anode region including the anode are separated from each other by an anion exchange membrane, a catholyte contained in the cathode region is an alkaline zinc alloy plating liquid, and an anolyte contained in the anode region is an aqueous alkaline solution.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: December 18, 2018
    Assignee: DIPSOL CHEMICALS CO., LTD.
    Inventors: Toshihiro Niikura, Takahiro Fujimori, Akira Hashimoto, Manabu Inoue
  • Patent number: 10153673
    Abstract: Bridge portions forming coil end portions, at both ends in an axial direction, of a stator of the rotating electrical machine according to the present invention are configured coaxially about an axis of the stator; at least one bridge portion of the bridge portions of each coil at both ends in the axial direction is located outward of an inner peripheral surface of the stator; and a gap is present between an end surface of a stator core in the axial direction and each bridge portion.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: December 11, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hironori Tsuiki, Hiroyuki Akita, Akira Hashimoto, Koji Kawamura, Sachiko Kawasaki, Atsushi Sakaue
  • Patent number: 10153674
    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: Grant
    Filed: July 7, 2014
    Date of Patent: December 11, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hironori Tsuiki, Atsushi Sakaue, Akira Hashimoto, Hiroyuki Akita, Masaya Inoue
  • Patent number: 10128700
    Abstract: A core segment linked body is configured by linking a plurality of core segments by inserting first shafts of first core segments into first slots of core segments near a first longitudinal end thereof, and inserting second shafts of core segments near the first longitudinal end thereof into second slots of the first core segments, the linked core segments are expandable and contractible between an expanded position in which an interval between the magnetic pole tooth is expanded and a contracted position in which the interval is reduced by the first shafts being guided by the first slots and the second shafts being guided by the second slots, and central axes of the first shafts and the second shafts are: offset in a longitudinal direction of the back yoke in the expanded position; and positioned collinearly in a direction of lamination in the contracted position.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: November 13, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takashi Umeda, Akira Hashimoto, Katsunori Oki
  • Patent number: 10110083
    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: Grant
    Filed: November 8, 2013
    Date of Patent: October 23, 2018
    Assignee: 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
  • Patent number: 10097058
    Abstract: In a rotary electric machine, an armature core includes a plurality of magnetic pole teeth and slots are formed between the magnetic pole teeth. An armature coil group includes a plurality of armature coils each including a pair of coil sides arranged in the slots, which are different from one another, and coil ends connecting the pair of coil sides. The armature coil group includes, as the armature coils, a plurality of base coils, of which one coil side is arranged in an upper opening of the slot and the other coil side is arranged in a lower opening of the slot, upper layer coils, of which both one coil side and the other coil side are arranged in an upper opening of the slot, and lower layer coils, of which both one coil side and the other coil side are arranged in the lower opening of the slot.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: October 9, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takashi Umeda, Akira Hashimoto
  • Publication number: 20180272310
    Abstract: The present invention provides a film deterioration preventing material for using together with a record storage film having a triacetyl cellulose film as the base film thereof, wherein the material includes an alkali metal carbonate or an alkali metal hydrogen carbonate as an acetic acid gas removing agent to remove the acetic acid gas in an atmosphere. The present invention also provides an acid gas removing agent to remove the acid gas in an atmosphere, wherein the acid gas in the atmosphere is removed by an alkali metal carbonate or an alkali metal hydrogen carbonate.
    Type: Application
    Filed: September 29, 2016
    Publication date: September 27, 2018
    Applicant: ASHIGARA MANUFACTURING INC.
    Inventors: Kazunori MATSUI, Terumitsu ISHII, Akira HASHIMOTO
  • Publication number: 20180226846
    Abstract: A stacked iron core for an armature includes: an annular iron core piece having first iron core piece tooth portions, and connecting portions each for connecting circumferential ends of an end portion on an inner circumference side of each of the first iron core piece tooth portions; and an iron core piece stacked between the first iron core piece tooth portions of two of the annular iron core pieces, the iron core piece including: a second iron core piece tooth portion having an identical shape to that of the first iron core piece tooth portion; and flange portions protruding to both sides in a circumferential direction from an inner-circumference-side end of the second iron core piece tooth portion, and the iron core piece is separated from the iron core piece adjacent thereto in the circumferential direction, the connecting portion has a width y that is constant in a radial direction.
    Type: Application
    Filed: October 23, 2015
    Publication date: August 9, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hironori TSUIKI, Sachiko KAWASAKI, Akira HASHIMOTO
  • Publication number: 20180163316
    Abstract: The purpose of the present invention is to provide an electrical Al plating bath that poses little danger of exploding or igniting as a result of contacting air or water, and contains no benzene, toluene, xylene, naphthalene, or 1,3,5-trimethylbenzene, which have detrimental effects to humans. The present invention provides an electrical aluminum or aluminum alloy fused salt plating bath that is obtained by heat treatment of an electrical aluminum or aluminum alloy fused salt plating bath containing (A) a halogenated aluminum as the primary component and (B) at least one other type of halide after adding (C) one, two or more reducible compounds selected from the group consisting of hydrides of elements in Group 1 Periods 2 through 6 of the Periodic Table of Elements and/or hydrides of Group 13 Periods 2 through 6 of the Periodic Table of Elements and amine borane compounds.
    Type: Application
    Filed: February 9, 2018
    Publication date: June 14, 2018
    Inventors: Manabu Inoue, Akira Hashimoto, Tadahiro Onuma, Toshiki Inomata, Keisuke Nonomura, Naruaki Konno
  • Publication number: 20180145553
    Abstract: An annular conductor retaining device has a retention guide portion formed by blades arranged in a cylindrical shape with gaps therebetween. An annular conductor is inserted into two of the gaps across a plurality of the blades. The next annular conductor is inserted into the gaps to partially overlap the previously arranged annular conductor. This step is repeated so that the annular conductors are arranged in a spiral shape in the retention guide portion. The retention guide portion and the inner circumferential part of the core are fitted to each other, and the gaps and the slots of the core are made to coincide with each other. A pusher is inserted into the inner circumferential part of the retention guide portion so that the annular conductors are caught on the pusher, to move them in the axial direction into the slots of the core, and thus become the coils.
    Type: Application
    Filed: August 24, 2016
    Publication date: May 24, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hironori TSUIKI, Akira HASHIMOTO
  • Publication number: 20180145549
    Abstract: A rotary electric machine according to the present invention includes: a stator including an outer core, a plurality of inner cores, and a coil accommodated in slots, each slot being surrounded by opposing circumferential side surfaces of tooth portions of adjacent inner cores and by inner circumferential surfaces of projections of the adjacent inner cores; and a rotor. A gap is provided between the circumferential side surfaces of the adjacent inner cores. The coil has a first slot-accommodated portion and a second slot-accommodated portion accommodated in different slots, and a turn portion connecting the two slot-accommodated portions on one end surface, in an axial direction, of a stator core. The turn portion is elastically urged in a direction in which the first slot-accommodated portion and the second slot-accommodated portion move away from each other in the circumferential direction.
    Type: Application
    Filed: September 12, 2016
    Publication date: May 24, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tatsuro HINO, Kohei EGASHIRA, Tetsuya YOKOGAWA, Shinkichi SAWA, Akihiro YAMAMURA, Masaya INOUE, Akira HASHIMOTO, Masashi NAKAMURA
  • Patent number: 9960644
    Abstract: In a core for a rotary electric machine, first end portions of back yoke portions are linked to second end portions of back yoke portions of adjacent core segments so as to be rotatable around pivot portions. Each of the core segments is configured by alternately laminating first core segment sheets and second core segment sheets. The pivot portions are constituted by interfitting protruding portions that are formed on the first core segment sheets. The core segments are displaceable relative to the adjacent core segments between a contracted position in which spacing between the magnetic pole tooth portions is contracted and an expanded position in which spacing between the magnetic pole tooth portions is expanded, when the core segment linked body is opened out rectilinearly.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: May 1, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akira Hashimoto, Atsushi Sakaue, Hironori Tsuiki, Yuji Nakahara, Takashi Umeda, Katsunori Oki, Ryuichi Takiguchi, Takanori Komatsu
  • Publication number: 20180109154
    Abstract: A stator is assembled by stacking, in the axial direction, a plurality of magnetic steel sheets having tooth portions. The steel sheets include connected tooth steel sheets in which the inner-circumferential-side end portions of the tooth portions are connected via connection portions in an annular shape along the circumferential direction, and non-connected tooth steel sheets which are separated from each other with the tooth portions not connected to each other. The connected tooth steel sheets and the non-connected tooth steel sheets are joined to each other in the axial direction via swage portions provided in the tooth portions. The thickness of each connection portion is smaller than the thickness of the other part of each steel sheet.
    Type: Application
    Filed: April 19, 2016
    Publication date: April 19, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hironori TSUIKI, Koji KAWAMURA, Hiroyuki AKITA, Akira HASHIMOTO
  • Patent number: 9926638
    Abstract: The purpose of the present invention is to provide an electrical Al plating bath that poses little danger of exploding or igniting as a result of contacting air or water, and contains no benzene, toluene, xylene, naphthalene, or 1,3,5-trimethylbenzene, which have detrimental effects to humans. The present invention provides an electrical aluminum or aluminum alloy fused salt plating bath that is obtained by heat treatment of an electrical aluminum or aluminum alloy fused salt plating bath containing (A) a halogenated aluminum as the primary component and (B) at least one other type of halide after adding (C) one, two or more reducible compounds selected from the group consisting of hydrides of elements in Group 1 Periods 2 through 6 of the Periodic Table of Elements and/or hydrides of Group 13 Periods 2 through 6 of the Periodic Table of Elements and amine borane compounds.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: March 27, 2018
    Assignee: DIPSOL CHEMICALS CO., LTD.
    Inventors: Manabu Inoue, Akira Hashimoto, Tadahiro Onuma, Toshiki Inomata, Keisuke Nonomura, Naruaki Konno
  • Publication number: 20180076674
    Abstract: This invention, is concerning a rotary electrical machine, wherein, where Q is the number of a plurality of slots, P is the number of a plurality of magnets, gcd(Q, P) is the greatest common divisor of Q and P, m is the number of phases, and one position group is defined as a set of m positions spaced from each other along the circumferential direction of the armature core by a pitch of an angle of [360/{gcd(Q, p)×m}]°, an armature core is: formed by connection of a plurality of core pieces at connection positions that are set to positions included in one or more respective position groups from among gcd(Q, P) position groups formed at equal pitch along the circumferential direction of the armature core.
    Type: Application
    Filed: May 19, 2015
    Publication date: March 15, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takashi UMEDA, Yasuki KIMURA, Akira HASHIMOTO
  • Publication number: 20180069446
    Abstract: X1>X2 and X3<X4 are satisfied when a distance in a radial direction at an axial end portion of the armature core between two slot-housed portions adjacent to each other and connected to two slot lead-out portions bent along a circumferential direction in the same direction is denoted by X1, a distance in the radial direction between the slot lead-out portions is denoted by X2, a distance in the radial direction at the axial end portion of the armature core between two slot-housed portions adjacent to each other and connected to two slot lead-out portions bent along the circumferential direction in directions opposite to each other is denoted by X3, and a distance in the radial direction between the two slot lead-out portions bent along the circumferential direction in the directions opposite to each other is denoted by X4.
    Type: Application
    Filed: March 18, 2016
    Publication date: March 8, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tatsuro HINO, Kohei EGASHIRA, Atsushi SAKAUE, Tetsuya YOKOGAWA, Akira HASHIMOTO, Masashi NAKAMURA, Hiroyuki AKITA
  • Publication number: 20180056433
    Abstract: A metallic member bonding device includes a pressurizing unit, a current supply unit, and a deformation suppressing unit. The pressurizing unit pressurizes a first metallic member toward a hole portion of a second metallic member to press the first metallic member therein. The current supply unit supplies a welding current between the first metallic member and the second metallic member. The deformation suppressing unit suppresses deformation of one of the first metallic member and the second metallic member, the one member having a constituent metallic material with at least one of a proof stress and a melting temperature lower than that of the other member, the deformation being in a direction of a cross section crossing a direction of the press-in. Then, the deformation suppressing unit is provided in a region covering at least a plastic flow range in the press-in direction.
    Type: Application
    Filed: August 11, 2017
    Publication date: March 1, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masanori NAKAI, Akira HASHIMOTO
  • Patent number: 9903091
    Abstract: A quick coupler includes a coupler body having a first hook, a lock member, a slidable second hook, a hydraulic cylinder, and a connecting pin connecting the cylinder and coupler body. The lock member is movable between locking and unlocking positions in which the lock member protrudes into and retracts from an opening of the first hook. The cylinder includes first and second end portions connected to the coupler body and the second hook, respectively. The cylinder extends and contracts to cause the second hook to slide away from and towards the first hook, respectively. The coupler body includes a support hole moveably supporting the connecting pin in an extension and contraction direction of the cylinder. The first end portion of the cylinder moves away from the second end portion within a movability range of the connecting pin to move the lock member from the unlocking to locking position.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: February 27, 2018
    Assignee: KOMATSU LTD.
    Inventors: Takuya Tsukada, Kenichi Higuchi, Akira Hashimoto, Hisao Asada, Tsuyoshi Yoshida, Daijiro Ito
  • Publication number: 20180054103
    Abstract: A unit coil includes: first, second, third, and fourth turn portions extending in a bent manner from first, second, third, and fourth slot accommodation portions and each connecting the slot accommodation portions to each other; and first, second, third, and fourth leg portions. Recesses are formed in surfaces opposed to each other at bent parts of the turn portions or bent parts of the turn portion and the leg portion, that extend in a bent manner toward the same side in the circumferential direction from the slot accommodation portions adjacent to each other in the radial direction.
    Type: Application
    Filed: May 17, 2016
    Publication date: February 22, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tatsuro HINO, Kohei EGASHIRA, Tetsuya YOKOGAWA, Hiroyuki AKITA, Akira HASHIMOTO, Masashi NAKAMURA