Patents by Inventor Takashi Hattori

Takashi Hattori 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: 10958132
    Abstract: A motor includes a heat sink including an inner region, and an outer region located radially outward from the inner region. An axial thickness of the inner region is larger than an axial thickness of the outer region, the bottom surface of the outer region is located axially above the bottom surface of the inner region, and the inner region and the electronic component at least partially overlap in an axial direction. A bus bar holder is located axially below the outer region and overlaps the inner region in a radial direction.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 23, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Takashi Hattori, Takahiro Kizu, Toshiya Okamoto, Yuichi Nishikawa, Yoshiaki Yamashita
  • Patent number: 10958131
    Abstract: A motor includes a rotor, a stator, a housing, a substrate, a connector, and a cover. The cover includes a covering wall that extends axially downward from a radial outer rim and covers at least a portion of the radial outer rim of the connector, and a cover recess that is radially inward from the covering wall and is depressed axially. The connector includes a connector projection that is provided in a radial outer edge area and extends axially, and the connector projection and the cover recess are fitted together through a gap.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 23, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Takashi Hattori, Yusaku Yoshida, Toshiya Okamoto, Takahiro Kizu, Yuichi Nishikawa
  • Patent number: 10958129
    Abstract: A motor includes a rotor with a shaft that extends axially, a stator that surrounds a radial outer side of the rotor, a heat sink that is axially above the stator and provided with cavities that pass conductors therethrough and extend axially, and a substrate that is axially above the heat sink and includes an electronic component mounted thereon, wherein the heat sink includes a contact surface that contacts the substrate or electronic component directly or via a heat dissipating member and an exposed surface that does not come into contact with other members, wherein the exposed surface is located closer to an outer edge than the cavities.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 23, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Takahiro Kizu, Takashi Hattori, Toshiya Okamoto, Yuichi Nishikawa, Yoshiaki Yamashita
  • Patent number: 10958130
    Abstract: A motor includes a rotor, a stator, a housing, and a flange. The housing includes a first cylindrical portion, a contact portion extending radially inward from an axial lower end of the first cylindrical portion, a second cylindrical portion that extends axially downward from a radial inner edge of the contact portion and has a smaller outer diameter than the first cylindrical portion, and a bottom portion extending radially inward from an axial lower end of the second cylindrical portion. The flange includes a flange cylindrical portion, and a flange flat portion extending radially outward from an axial lower end of the flange cylindrical portion. The flange cylindrical portion is fixed to an outer surface of the second cylindrical portion and an upper end of the flange cylindrical portion contacts with an outside lower surface of the contact portion.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 23, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Takahiro Kizu, Takashi Hattori, Toshiya Okamoto, Yuichi Nishikawa
  • Patent number: 10938271
    Abstract: A motor includes a rotor including a shaft that extends axially, a stator that surrounds the radial outer side of the rotor and includes coils defined by windings of coil wires, a holder with through-holes that is axially above the stator for insertion of the coil wires therethrough and extends axially, and a substrate that is axially above the holder and includes an electronic component mounted thereon. Only some of the coil wires with the same phase are inserted into each of the through-holes, and the through-holes are separate holes provided to different phases of the coil wires.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 2, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Takashi Hattori, Takahiro Kizu, Toshiya Okamoto, Yuichi Nishikawa, Yoshiaki Yamashita
  • Patent number: 10938262
    Abstract: A motor includes a rotor including a shaft extending axially, a stator surrounding a radial outside of the rotor and including a coil defined by a wound coil wire, a holder disposed on an axially upper side of the stator, the coil wire being inserted into the holder, the holder including through-holes extending axially, and a circuit board disposed on the axially upper side of the holder, an electronic component being mounted on the circuit board. When the holder is viewed from the axially upper side, the through-holes are located in a region where a center angle (?) centered on the shaft is less than or equal to 180 degrees.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 2, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Takashi Hattori, Takahiro Kizu, Toshiya Okamoto, Yuichi Nishikawa, Yoshiaki Yamashita, Mitsuo Kodama, Yuya Saito, Shingo Fukumoto, Chiharu Kobayashi
  • Publication number: 20210044170
    Abstract: A motor includes a rotor including a shaft extending in an axial direction, a stator surrounding a radially outer portion of the rotor, a support into which the conductor is inserted, the support being made of an insulating material, and a holder including through holes to hold the support, in which the support includes the first and second protuberances at least a portion of which is located in the through hole, the first and second protuberances being provided at intervals, and a base portion connecting the first and second protuberances, and in which at least a portion of each of facing regions of a side surface of the first protuberance is close to the holder, and the second protuberance has a clearance with respect to the holder.
    Type: Application
    Filed: January 25, 2019
    Publication date: February 11, 2021
    Applicant: Nidec Corporation
    Inventors: Toshiya OKAMOTO, Takashi HATTORI
  • Publication number: 20210028665
    Abstract: A motor includes a wire support member that includes a wire holding portion that holds one portion of coil lead wires among the coil lead wires extending upward from a coil, a first conducting member that electrically connects the other portion of the coil lead wires to each other, and a main body portion that supports the wire holding portion and a first conducting member, a bus bar unit includes a second conducting member connected to the coil lead wire held by the wire holding portion, and a bus bar holder that holds the second conducting member, and a bearing holder includes a through-hole which penetrates the bearing holder in an axial direction and through which a coil end of the coil lead wire or the second conducting member passes.
    Type: Application
    Filed: October 15, 2020
    Publication date: January 28, 2021
    Inventors: Kosuke OGAWA, Takashi HATTORI, Shunsuke MURAKAMI, Takao ATARASHI, Hidehiro HAGA
  • Patent number: 10903711
    Abstract: A motor includes a rotor that has a shaft with a central axis extending in a vertical direction as a center, a stator disposed so as to face the rotor in a radial direction, a bearing that supports the shaft, a wire support member disposed above the stator, and a bearing holder disposed above the wire support member to hold the bearing. The stator includes a plurality of teeth, and a plurality of coils provided on the plurality of teeth. The wire support member includes a wire holding portion that holds one portion of coil lead wires among the coil lead wires drawn out from the coil, a conducting member that electrically connects the other portion of the coil lead wires to each other, and a main body portion that supports the wire holding portion and the conducting member.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: January 26, 2021
    Assignee: Nidec Corporation
    Inventors: Kosuke Ogawa, Takashi Hattori, Shunsuke Murakami, Takao Atarashi, Hidehiro Haga, Yoshiaki Yamashita, Takahiro Kizu, Toshiya Okamoto
  • Patent number: 10862363
    Abstract: In a motor, a wire support member includes a wire holding portion that holds one portion of coil lead wires among the coil lead wires extending upward from a coil, a first conducting member that electrically connects the other portion of the coil lead wires to each other, and a main body portion that supports the wire holding portion and a first conducting member, a bus bar unit includes a second conducting member connected to the coil lead wire held by the wire holding portion, and a bus bar holder that holds the second conducting member. A bearing holder includes a through-hole which penetrates the bearing holder in an axial direction and through which a coil end of the coil lead wire or the second conducting member passes.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: December 8, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Kosuke Ogawa, Takashi Hattori, Shunsuke Murakami, Takao Atarashi, Hidehiro Haga
  • Publication number: 20200313493
    Abstract: A motor includes a motor main body, a housing, a heat sink, a controller, a connector, and a cover that surrounds the controller and the connector. The heat sink includes a connector holder including an open outer side in a radial direction and holding the connector. The motor includes a ring-shaped cover joint portion that surrounds the controller and includes a stepped portion that includes a first surface and a second surface. The cover includes a cylindrical portion that faces the first surface in the radial direction. The motor includes a waterproof material that seals a portion between the cylindrical portion and the first surface or a portion between the cylindrical portion and the second surface.
    Type: Application
    Filed: February 7, 2020
    Publication date: October 1, 2020
    Inventors: Takashi HATTORI, Yuichi NISHIKAWA, Yuki HAMADA, Yu KUWAMOTO
  • Publication number: 20200313515
    Abstract: A motor includes a motor body, a housing, a heat sink, a controller, a connector, and a cover. The heat sink includes two arm portions each extending radially outward. The connector is held between the two arm portions. The heat sink and the connector include a cover joint portion extending all the way around surfaces of the heat sink and the connector along a circumferential direction, is loop-shaped, and surrounds the controller, when viewed in an axial direction. The cover is joined to the cover joint portion. The connector includes a connector outside surface exposed between the two arm portions, and including circumferential end portions adjacent to the arm portions and overlapping with an imaginary line joining distal ends of the two arm portions or located radially inward of the imaginary line when viewed in the axial direction.
    Type: Application
    Filed: February 10, 2020
    Publication date: October 1, 2020
    Inventors: Takashi HATTORI, Yuichi NISHIKAWA, Yuki HAMADA, Yu KUWAMOTO
  • Publication number: 20200313503
    Abstract: A motor includes a motor main body including a rotor and a stator, a controller, a housing, and a connector. The housing includes a lower housing that holds the motor main body, and an upper housing that holds the controller and the connector. The upper housing includes a connector holder that protrudes outward in the radial direction from an outer peripheral end of the lower housing. The connector holder includes a connector inserting portion into which the connector is inserted in the axial direction. The connector inserting portion includes a ridge portion, which protrudes outward in the radial direction from a straight line connecting both ends of an inner-peripheral-side wall surface in the circumferential direction, on the inner-peripheral-side wall surface facing, in the radial direction, a surface of the connector facing inward in the radial direction.
    Type: Application
    Filed: February 7, 2020
    Publication date: October 1, 2020
    Inventors: Takashi HATTORI, Yu KUWAMOTO, Kanwu SHIRAKAWA
  • Publication number: 20200313494
    Abstract: A motor includes a motor body, a housing, a controller, and a cover. The housing includes an annular cover joint that surrounds the controller. The cover joint includes a stepped portion on a side surface of the housing. The stepped portion includes a first surface that faces in the radial direction, and an upward second surface that extends radially from the lower end of the first surface. The cover includes a cylindrical portion radially facing the first surface of the cover joint. An adhesive bonds the first surface of the cover joint and a surface facing the radial direction of the cylindrical portion, and bonds the second surface of the cover joint and an end surface facing the lower side of the cylindrical portion.
    Type: Application
    Filed: February 10, 2020
    Publication date: October 1, 2020
    Inventors: Takashi HATTORI, Yuichi NISHIKAWA, Takao ATARASHI, Yuki HAMADA, Yu KUWAMOTO
  • Publication number: 20200247284
    Abstract: A vehicle seat of the present disclosure includes a seat cushion; a seatback; a sliding device; a first locking mechanism configured to restrict a sliding movement of a seat main body; a tip-up mechanism configured to rotationally displace the seat cushion upwardly from an occupiable position in conjunction with a frontward rotational movement of the seatback; a second locking mechanism configured to restrict a sliding movement of the seat main body when an elevation angle of the seat cushion exceeds a preset angle, and remove the restriction when the elevation angle is equal to or below a preset removal angle; and a first restrictor configured to restrict the elevation angle from being equal to or below the removal angle when the tip-up mechanism is activated.
    Type: Application
    Filed: January 30, 2020
    Publication date: August 6, 2020
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Daishi YAGUCHI, Shun FUJISHIRO, Hideki FUJISAWA, Hidefumi SERA, Takashi HATTORI
  • Publication number: 20200247279
    Abstract: A vehicle seat in the present disclosure includes a seat cushion; a seatback; a sliding device configured to slidably support a seat main body that includes the seat cushion and the seatback; a first locking mechanism configured to restrict a sliding movement of the seat main body when the seat cushion and the seatback are placed in an occupiable state; a tip-up mechanism configured to rotationally displace the seat cushion in conjunction with a frontward tilting movement of the seatback; and a second locking mechanism configured to restrict a sliding movement of the seat main body when an elevation angle of the seat cushion exceeds a preset angle by an operation of the tip-up mechanism.
    Type: Application
    Filed: January 28, 2020
    Publication date: August 6, 2020
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Takashi HATTORI, Yoshiyuki KUMAZAKI
  • Publication number: 20200238857
    Abstract: One example of a sliding device that can sufficiently reduce a separation phenomenon is disclosed. The sliding device includes a fixed rail, a movable rail, a fixed-side hook, an engagement hook, and a reinforcing hook. The fixed rail is configured to be fixed to a vehicle. To the movable rail, the seat body is attachable. The movable rail is slidable with respect to the fixed rail. The fixed-side hook is configured to be fixed to the vehicle. The engagement hook is provided to the movable rail. The engagement hook is engageable with the fixed-side hook, and is formed by a first plate material curved approximately into a letter J or U shape. The reinforcing hook overlaps with the engagement hook in a thickness direction of the first plate material. The reinforcing hook is formed by a second plate material curved approximately into a letter J or U shape.
    Type: Application
    Filed: January 22, 2020
    Publication date: July 30, 2020
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Takashi HATTORI, Motohisa NAKAMURA, Takuya MIZUNO, Tsutomu OYA
  • Publication number: 20200238858
    Abstract: Disclosed is one example of a sliding device in which a movable rail can be inhibited from being largely deformed even when a load such as a compressed load acts on the movable rail. The sliding device includes a fixed rail, a movable rail, and a load receiving portion. The fixed rail is configured to be fixed to a vehicle. To the movable rail, the seat body is attachable. The movable rail is slidable with respect to the fixed rail. The load receiving portion extends from a fixed rail side toward a movable rail side. The load receiving portion is configured to receive a load directed from the movable rail toward the fixed rail in conjunction with the movable rail when the load acts on the movable rail.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 30, 2020
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Takashi HATTORI, Motohisa NAKAMURA, Takuya MIZUNO, Tsutomu OYA
  • Publication number: 20200220435
    Abstract: A motor includes a rotor including an axially extending shaft, a stator surrounding a radially outer side of the rotor, a housing accommodating the rotor and the stator therein, a holder disposed axially above the stator, a board fixed axially above the holder, a choke coil electrically connected to the board, and a connector radially outside the housing, and the connector the choke coil, and the board overlap in this order when viewed from axially below.
    Type: Application
    Filed: June 28, 2018
    Publication date: July 9, 2020
    Inventors: Takashi HATTORI, Toshiya OKAMOTO
  • Publication number: 20200172154
    Abstract: A motor includes a rotor including an axially extending shaft, a stator, a housing, a heat sink disposed axially above the stator, a board fixed axially above the heat sink, a connector disposed radially outside the housing, and a connector pin accommodated in the connector. The heat sink includes a main body, and a protrusion which is continuous with the main body, the protrusion extending radially outward of the housing. The connector, the protrusion, and the board overlap in this order when viewed from axially below. The connector pin is positioned radially outside the protrusion.
    Type: Application
    Filed: June 28, 2018
    Publication date: June 4, 2020
    Inventors: Takashi HATTORI, Toshiya OKAMOTO, Takanobu OYAMA