Patents by Inventor Yoichi Sekii

Yoichi Sekii 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).

  • Publication number: 20240128846
    Abstract: A vibration motor includes a stationary portion and a movable portion to vibrate in a central axis direction with respect to the stationary portion. The stationary portion includes a housing and a coil on an outer side in a radial direction of the movable portion. The movable portion includes a core portion including a magnet. The housing houses the movable portion and the coil, and includes a peripheral wall portion on an outer side in the radial direction of the coil and extending in an axial direction, and a magnetic portion on a portion of the peripheral wall portion and including a magnetic body. At least a portion of the magnetic portion opposes the coil in the radial direction and extends in a circumferential direction. The peripheral wall portion includes a through hole adjacent to the magnetic portion in the axial direction and extends in the circumferential direction.
    Type: Application
    Filed: October 17, 2023
    Publication date: April 18, 2024
    Inventors: Toshitaka YAMAZAKI, Jun INOUE, Yoichi SEKII
  • Patent number: 11843307
    Abstract: A motor includes a stator, a rotor, and a bearing. The stator includes a shaft that extends in a vertical direction. The rotor is rotatable around the shaft. The bearing supports the rotor in a rotatable manner. The rotor includes a magnet, a case, and a tooth groove. The magnet is radially outward of the stator and opposes the stator in a radial direction. The case covers a radially outer end of the magnet. The tooth groove is provided in a radially outer surface of the case.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: December 12, 2023
    Assignee: NIDEC CORPORATION
    Inventors: Hideki Nishimura, Tomohiro Hasegawa, Hiroaki Hirano, Yoichi Sekii
  • Patent number: 11804753
    Abstract: A motor includes a stator, a rotor, and a bearing. The stator includes a shaft that extends in a vertical direction. The rotor is rotatable around the shaft. The bearing supports the rotor in a rotatable manner. The rotor includes a magnet, a case, and a tooth groove. The magnet is radially outward of the stator and opposes the stator in a radial direction. The case covers a radially outer end of the magnet. The tooth groove is provided in a radially outer surface of the case.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: October 31, 2023
    Assignee: NIDEC CORPORATION
    Inventors: Hideki Nishimura, Tomohiro Hasegawa, Hiroaki Hirano, Yoichi Sekii
  • Patent number: 11725713
    Abstract: A planetary gear mechanism includes a sun gear attached to the motor rotation shaft to rotate about the central axis extending vertically, a fixed internal gear radially outside the sun gear, planetary gears radially outside the sun gear and radially inside the fixed internal gear to mesh with the sun gear and the fixed internal gear, a movable internal gear above the fixed internal gear and radially outside the planetary gears to mesh with the planetary gears and to rotate about the central axis, and a carrier that holds upper and lower surfaces of the planetary gears.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: August 15, 2023
    Assignee: NIDEC CORPORATION
    Inventor: Yoichi Sekii
  • Publication number: 20230246508
    Abstract: A motor module includes a motor and a casing including a partition wall. The accommodation space includes first and second accommodation spaces. The partition wall includes a base that partitions the first and second accommodation spaces in an axial direction. The base includes a wiring including a lead-out port and a guide groove extending from the lead-out port. The lead wire is led out from the lead-out port and located in the guide groove. The casing includes a tape and a seal. The tape covers at least a portion of the wiring from below. The seal is located in at least a portion of a space defined by the wiring and the tape.
    Type: Application
    Filed: January 31, 2023
    Publication date: August 3, 2023
    Inventors: Hiroyuki YAMAMOTO, Yoichi SEKII, Masahiro OTANI
  • Patent number: 11627779
    Abstract: In a lacing module, one gear of a worm wheel gear and a clutch gear includes a protrusion, and another gear of the worm wheel gear and the clutch gear includes a recess. The worm wheel gear meshes with a worm gear rotatable together with a shaft of a motor. The clutch gear is fixed to a spool shaft portion of a spool around which a string can be wound. The protrusion protrudes in a direction between the one gear and the another gear. The recess is recessed in the direction between the one gear toward and the another gear. At least an end of the protrusion protruding from one gear to the other gear in a vertical direction is fitted into the recess.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: April 18, 2023
    Assignee: NIDEC CORPORATION
    Inventor: Yoichi Sekii
  • Publication number: 20230037663
    Abstract: A routing structure of a conductive wire includes: a body portion; a guide portion fixed to the body portion and including a protruding portion protruding to an outside of the body portion; a conductive wire hooked on the protruding portion of the guide portion; and a first insulating portion disposed between the body portion and the guide portion and insulating the body portion and the guide portion.
    Type: Application
    Filed: August 5, 2022
    Publication date: February 9, 2023
    Inventor: Yoichi SEKII
  • Publication number: 20220278570
    Abstract: A motor includes a rotor including a shaft centered on a central axis extending vertically, a bearing that supports the shaft, an air-core coil that is radially outward of the rotor and extends in an axial direction, and a back yoke that includes an axially extending shape with a linear portion having a coil shape, and includes an inner peripheral surface to which the air-core coil is fixed.
    Type: Application
    Filed: February 24, 2022
    Publication date: September 1, 2022
    Inventors: Yu TACHIBANA, Yoichi SEKII, Hiroaki HIRANO
  • Publication number: 20220278589
    Abstract: A motor includes a shaft centered on a central axis that extends vertically, a bearing that supports the shaft, and a stator including a coil radially opposing an outer peripheral surface of the shaft. The shaft includes a magnetization pattern in which at least two or more poles of N and S poles are alternately arranged in a circumferential direction.
    Type: Application
    Filed: February 24, 2022
    Publication date: September 1, 2022
    Inventors: Yu TACHIBANA, Tomohiro HASEGAWA, Yoichi SEKII, Masahiro OTANI, Hiroaki HIRANO
  • Publication number: 20220175091
    Abstract: A spool includes a shaft, a trunk portion, and an upper lid portion. The shaft is rotatable about a central axis. The trunk portion includes a lower portion to which the shaft is connected and a radially outer surface around which a string material is wound. The upper lid portion is on an upper surface of the trunk portion. The trunk portion includes a groove portion, a first base portion, and a second base portion. The groove portion is recessed axially downward, extends in a radial direction, and is provided with the string material. The first base portion and the second base portion are side by side in a radial direction with the groove portion therebetween. The first base portion includes a first protruding portion protruding toward the second base portion. The second base portion includes a second protruding portion protruding toward the first base portion.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 9, 2022
    Inventor: Yoichi SEKII
  • Publication number: 20220175090
    Abstract: In a lacing module, one gear of a worm wheel gear and a clutch gear includes a protrusion, and another gear of the worm wheel gear and the clutch gear includes a recess. The worm wheel gear meshes with a worm gear rotatable together with a shaft of a motor. The clutch gear is fixed to a spool shaft portion of a spool around which a string can be wound. The protrusion protrudes in a direction between the one gear and the another gear. The recess is recessed in the direction between the one gear toward and the another gear. At least an end of the protrusion protruding from one gear to the other gear in a vertical direction is fitted into the recess.
    Type: Application
    Filed: December 6, 2021
    Publication date: June 9, 2022
    Inventor: Yoichi SEKII
  • Publication number: 20220178423
    Abstract: A planetary gear mechanism includes a sun gear attached to the motor rotation shaft to rotate about the central axis extending vertically, a fixed internal gear radially outside the sun gear, planetary gears radially outside the sun gear and radially inside the fixed internal gear to mesh with the sun gear and the fixed internal gear, a movable internal gear above the fixed internal gear and radially outside the planetary gears to mesh with the planetary gears and to rotate about the central axis, and a carrier that holds upper and lower surfaces of the planetary gears.
    Type: Application
    Filed: December 6, 2021
    Publication date: June 9, 2022
    Inventor: Yoichi SEKII
  • Publication number: 20220110417
    Abstract: A spool includes a shaft, a trunk, and a connection connecting the shaft and trunk. The shaft rotates around a central axis. In the trunk, a string is wound on a radially outer surface. The trunk has a flange, and a recess recessed axially upward from a lower surface of the trunk. The flange protrudes radially outward from a lower end of the trunk. The connection is disposed inside the recess and engaged with the trunk in a circumferential direction and a lower surface is connected to the shaft. The connection has a groove recessed axially downward from an upper surface of the connection and is disposed with the string, and an engagement claw disposed in an upper end of the connection. The trunk has an engagement portion disposed on a radially inner surface of the recess and engaged axially with the engagement claw.
    Type: Application
    Filed: October 11, 2021
    Publication date: April 14, 2022
    Inventor: Yoichi SEKII
  • Publication number: 20220110414
    Abstract: A spool includes a shaft, a trunk portion, and an upper lid portion. The shaft rotates around a central axis extending vertically. The trunk portion has a lower portion connected with the shaft, a radially outer surface wound with a string material, and an upper surface having a groove portion disposed with the string material. The upper lid portion is disposed on the upper surface of the trunk portion. One of the trunk portion and the upper lid portion has an engagement protrusion portion protruding in an axial direction, and the other has a first recess portion which is recessed in the axial direction and engaged axially with the engagement protrusion portion disposed inside. The upper lid portion covers at least a part of the groove portion.
    Type: Application
    Filed: October 11, 2021
    Publication date: April 14, 2022
    Inventor: Yoichi SEKII
  • Publication number: 20210376693
    Abstract: A motor includes a stator, a rotor, and a bearing. The stator includes a shaft that extends in a vertical direction. The rotor is rotatable around the shaft. The bearing supports the rotor in a rotatable manner. The rotor includes a magnet, a case, and a tooth groove. The magnet is radially outward of the stator and opposes the stator in a radial direction. The case covers a radially outer end of the magnet. The tooth groove is provided in a radially outer surface of the case.
    Type: Application
    Filed: June 1, 2021
    Publication date: December 2, 2021
    Inventors: Hideki NISHIMURA, Tomohiro HASEGAWA, Hiroaki HIRANO, Yoichi SEKII
  • Patent number: 11146130
    Abstract: This motor includes a stationary portion including a stator; and a rotating portion supported to be rotatable about a central axis extending in a vertical direction with respect to the stationary portion, and including a shaft arranged to extend along the central axis. The stationary portion includes a bearing arranged to rotatably support the shaft, and a base portion arranged to hold the stator. The rotating portion includes a rotor hub portion arranged to extend in an annular shape around the shaft; a magnet directly or indirectly fixed to the rotor hub portion, and arranged opposite to the stator; a flywheel arranged axially above the rotor hub portion; and a seal portion arranged to have a thickness smaller than the thickness of the magnet. At least a portion of an outer circumferential surface of the rotor hub portion is a metal surface.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: October 12, 2021
    Assignee: Valve Corporation
    Inventors: Junya Mizukami, Yoichi Sekii, Takeyuki Shuto, Naohiro Nagasawa
  • Patent number: 11025106
    Abstract: A conducting wire includes an incoming portion, coil portions, an outgoing portion leading out of an armature, and circumferentially extending portions. The circumferentially extending portions include an alternately arranged portion extending alternately on first and second axial sides of circumferentially adjacent ones of teeth, and a passage line portion extending on a same axial side of circumferentially adjacent ones of the teeth. One to two rounds of the circumferentially extending portions extend along a core back. The passage line portion extends on a same axial side over two of the teeth which have at least one of the incoming portion and the outgoing portion located circumferentially therebetween, and is radially outside of at least one of the incoming portion and the outgoing portion.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: June 1, 2021
    Assignee: NIDEC CORPORATION
    Inventor: Yoichi Sekii
  • Patent number: 10908413
    Abstract: This rotary drive apparatus includes a stationary portion including a stator; and a rotating portion supported through a bearing portion to be rotatable about a central axis extending in a vertical direction with respect to the stationary portion, the rotating portion including a magnet arranged opposite to the stator. The bearing portion includes an upper bearing portion, and a lower bearing portion arranged below the upper bearing portion. A center of gravity of the rotating portion is located below an upper end of the upper bearing portion and above a lower end of the lower bearing portion.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: February 2, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Hideki Nishimura, Yoichi Sekii
  • Patent number: 10591718
    Abstract: This rotary drive apparatus is arranged to rotate a flywheel arranged to support an optical component arranged to reflect incoming light coming from a light source or allow the incoming light to pass therethrough, and includes a motor including a rotating portion; and the flywheel, the flywheel being supported by the motor and arranged to rotate about a central axis extending in a vertical direction. The flywheel includes a plate-shaped accommodating portion in which the optical component is arranged; a bottom surface arranged at a bottom portion of the accommodating portion, and arranged to slant with respect to at least one of two opposed side surfaces of the optical component; and a base surface arranged to be in contact with at least a portion of another one of the two opposed side surfaces of the optical component.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: March 17, 2020
    Assignee: NIDEC CORPORATION
    Inventor: Yoichi Sekii
  • Patent number: 10591716
    Abstract: This rotary drive apparatus is arranged to cause incoming light coming from a light source to be emitted to an outside while changing the direction of the incoming light, and includes a motor including a hollow shaft arranged to extend along a central axis extending in a vertical direction, the hollow shaft including a through hole arranged to pass therethrough in an axial direction; a flywheel including at least one optical component arranged to reflect the incoming light or allow the incoming light to pass therethrough; and a laser module including the light source. At least a portion of the laser module is arranged below the base portion arranged to directly or indirectly support a stator. The through hole defines a light path along which the incoming light travels.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: March 17, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Yoichi Sekii, Takuro Iguchi, Yuichi Shigematsu