Patents Assigned to Nidec Sankyo Corporation
  • Optical unit with shake correction function
    Patent number: 11409125
    Abstract: An optical unit with a shake correction function may include a movable body, a gimbal mechanism swingably supporting the movable body around a first axis and a second axis, a fixed body supporting the movable body. The gimbal mechanism may include a gimbal frame, a first connection mechanism turnably connecting the movable body with the gimbal frame around the first axis, and a second connection mechanism turnably connecting the fixed body with the gimbal frame around the second axis. The first connection mechanism may include a first spherical body and a first concave curved face point-contacted with the first spherical body. The movable body may include an outer case and a protruded part protruded from the outer case at a diagonal position of the outer case in the first axis direction, and one of the first spherical body and the first concave curved face may be disposed in the protruded part.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: August 9, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Shinji Minamisawa
  • Manufacturing method of plastic lens
    Patent number: 11407188
    Abstract: A manufacturing method of a plastic lens formed by using a metal mold having a fixed mold and a movable mold. The plastic lens comprises a flange part surrounding a lens face, and an image side face of the flange part comprises a black coating part and an outer peripheral part. The manufacturing method may include a molding process in which the plastic lens is molded by using the fixed mold for molding an object side lens face and the movable mold for molding an image side lens face and the flange part, a mold opening process in which the metal mold is opened by moving the movable mold, and a pushing-out process in which the outer peripheral part is pushed out by an ejector pin disposed in the movable mold when the mold opening process is performed or, after the mold opening process has been performed.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: August 9, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Yosuke Kanzaki
  • Actuator with two magnetic drive circuits to vibrate a body in two directions
    Patent number: 11411482
    Abstract: An actuator comprising: a support body; a movable body which is movable with respect to the support body; and a drive mechanism structured to drive the movable body; wherein the drive mechanism comprises: a first magnetic drive circuit which comprises a first coil and a first magnet facing each other in a first direction and is structured to drive the movable body in a second direction perpendicular to the first direction; and a second magnetic drive circuit which comprises a second coil and a second magnet facing each other in the first direction at a position overlapping with the first magnetic drive circuit in the first direction, the second magnetic drive circuit being structured to drive the movable body in a third direction perpendicular to the first direction and intersecting the second direction.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: August 9, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Hiroshi Kitahara, Tadashi Takeda, Masao Tsuchihashi
  • Horizontal articulated robot and return-to-origin method thereof
    Patent number: 11407108
    Abstract: A robot may include a base; a base link connected to the base; an arm link coupled to the base link; an arm connected to the arm link; a hand connected to the arm; a storage; and a controller. The base link and arm link move so that a center of a coupling shaft of the arm link and the arm moves in a line. When the robot is within a predetermined range of a latest coordinate, the robot moves to the return-to-origin position in a direction from the transfer direction, otherwise the controller calculates the transfer path based on past teaching, and determines if there is a path close to the latest coordinate. If there is path, the controller determines whether the hand section is outside of a safe area, and if so, pulls the hand to a safe area and then moves the robot to the return-to-origin position.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: August 9, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Tetsuya Inomata
  • CARD READER AND FOREIGN MATTER DETECTION METHOD THEREFOR
    Publication number: 20220245617
    Abstract: A card reader structured to perform processing on a card includes a main body part, an insertion port which is opened in the main body part and into which the card is inserted, a conveyance passage which is provided in an inside of the main body part and in which the card having been inserted is conveyed, a drive mechanism structured to convey the card in the conveyance passage, a plurality of sensors which detect insertion of the card into the insertion port and a state of conveyance of the card in the conveyance passage, and a control part which monitors state transitions of detected results of the plurality of the sensors for the card and determines that a foreign matter has been inserted into the card reader when the control part detects that a state transition is generated in a mode which is different from a predetermined state transition.
    Type: Application
    Filed: January 21, 2022
    Publication date: August 4, 2022
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Munemasa Momose, Yasuhiro Kitazawa
  • ACTUATOR
    Publication number: 20220247295
    Abstract: An actuator includes a cover that houses a movable body. The cover is divided into two parts: a first cover member and a second cover member. A first comb teeth portion disposed at the end of the first cover member and a second comb teeth portion disposed at the end of the second cover member slidably engage each other in a first direction. Therefore, the first and second cover members can be assembled by adjusting the gap between the cover and the movable body in which a connecting member connecting the movable body and the cover is disposed, so that the dimensional accuracy of the gap between the cover and the movable body can be improved. Therefore, the movable body and the support body can be securely connected, and assembly defects can be avoided. Moreover, excess compression of the connecting member can be avoided.
    Type: Application
    Filed: January 23, 2022
    Publication date: August 4, 2022
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Yuichi TAKEI, Shinji HATANO
  • ACTUATOR
    Publication number: 20220247294
    Abstract: An actuator includes a magnetic drive circuit to vibrate a movable body relative to a support body. The magnetic drive circuit includes a magnet disposed in the movable body and a coil disposed in the support body. The support body includes a metal cover housing the movable body and a metal coil holder holding the coil. Two guide portions disposed on the coil holder are in surface contact with a first surface and a second surface of the cover. The heat generated when the coil is energized is transmitted from the coil holding portion to the guide portions and dissipated to the outside from the cover, which is in surface contact with the guide portions. Therefore, the temperature rise of the coil can be suppressed.
    Type: Application
    Filed: January 23, 2022
    Publication date: August 4, 2022
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Yuichi TAKEI, Shinji HATANO
  • Optical unit with shake correction function
    Patent number: 11402652
    Abstract: A retainer of a rotation support structure may include an outer protrusion on the outer circumference side of a spherical-object holding hole and an inner protrusion on the inner circumference side thereof. The outer protrusion may be in contact with a plate-holder circular arc wall of a plate-holder annular portion, and the inner protrusion may be in contact with a plate-roll annular wall of a plate-roll annular portion. When the plate-roll annular portion and the plate-holder annular portion shift with respect to the identical axis, the relative movement between the plate-roll annular portion and the plate-holder annular portion in the radial direction may be transmitted to a spherical object via the outer protrusion. Also, the relative movement may be transmitted to the spherical object via the inner protrusion, which makes the spherical object active.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: August 2, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Hiromitsu Takei
  • Optical unit with shake correction function
    Patent number: 11402650
    Abstract: An optical unit with a shake correction function includes a movable body having an optical module, a gimbal mechanism structured to swingably support the movable body around a first axial line and a second axial line, a fixed body supporting the movable body through the gimbal mechanism, and a shake correction drive mechanism structured to swing the movable body around the first axial line and around the second axial line. The gimbal mechanism includes a gimbal frame which connects the movable body with the fixed body, the gimbal frame has a first frame portion located on one side in an optical axis direction with respect to a first end part which is an end part on the one side of the fixed body, and the movable body has a movable body protruded portion located on the one side in the optical axis direction with respect to the first end part.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: August 2, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Takeshi Sue, Shinji Minamisawa
  • Manufacturing method of actuator
    Patent number: 11400656
    Abstract: A manufacturing method of an actuator having a support body, a movable body, a viscoelastic member adhesively bonded to one side member of the support body and the movable body by a first adhesive layer, and a magnetic drive circuit structured to relatively move the movable body may include, for adhesively bonding the viscoelastic member to the one side member by the first adhesive layer, a first step in which the viscoelastic member is disposed on a side of one face of a first jig, a second step in which the viscoelastic member and the one side member are overlapped with each other through an adhesive, a third step in which the adhesive is hardened to adhesively bond the one side member and the viscoelastic member to each other by the first adhesive layer, and a fourth step in which the first jig is separated from the viscoelastic member.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: August 2, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Kazuhiko Yanagisawa, Toshiyuki Watanabe
  • Lens unit and imaging device
    Patent number: 11402599
    Abstract: A lens unit may include a plurality of lenses and a holder to hold the lenses. The lenses may include a cemented lens including a first lens and a second lens disposed on an image side with respect to the first lens. The first lens and the second lens may be joined by adhesive. The first lens may include a first lens face located on a side of the second lens and a first flange face. The second lens may include a second lens face located on a side of the first lens and a second flange face. The adhesive may be provided across a first boundary portion between the first lens face and the first flange face and across a second boundary portion between the second lens face and the second flange face. The second boundary portion may include one of a recessed part and a protruded part.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: August 2, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Tadashi Komiyama
  • Lens unit
    Patent number: 11402600
    Abstract: A lens unit may include a plurality of lenses; and a lens barrel comprising an inner cylindrical portion in which the plurality of lenses are housed, an outer cylindrical portion separated radially outwardly from the inner cylindrical portion, and a plurality of ribs extending in a radial pattern from an outer circumferential surface of the inner cylindrical portion toward an inner circumferential surface of the outer cylindrical portion. A plurality of axis alignment protrusions protruding radially inwardly may be provided on an inner circumferential surface of the inner cylindrical portion. Each of the plurality of axis alignment protrusions may be formed between adjacent ribs among the plurality of ribs.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: August 2, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Tomoaki Nakajima
  • Optical Unit
    Publication number: 20220236582
    Abstract: An optical unit is provided which enables performing shake correction of a moving element in the optical axis direction and the direction around the optical axis with a simple configuration and which takes into account ease of assembly. Specifically, this optical unit is provided with: a moving element (14) which is provided with an optical module; a static element (16); a rolling support mechanism (20) which supports the moving element with respect to the static element rotatably about the optical axis of the optical module; and a rolling drive mechanism (18) which rotates the moving element about the optical axis.
    Type: Application
    Filed: August 7, 2019
    Publication date: July 28, 2022
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: Shinji MINAMISAWA
  • Optical unit with shake correction function
    Patent number: 11391961
    Abstract: An optical unit with a shake correction function includes a turning support mechanism structured to turnably support a movable body having a lens around an optical axis, and a gimbal mechanism structured to turnably support the turning support mechanism. The gimbal mechanism includes a gimbal frame and a first connection mechanism which turnably connects a plate holder with the gimbal frame around a first axis, and the first connection mechanism includes a first support member which is protruded from the gimbal frame to a side of the plate holder on the first axis, and a first concave curved face which is provided in the plate holder and is turnably brought into contact with a tip end of the first support member. A reinforcement member is fixed to the gimbal frame so that a portion of the gimbal frame where the first axis is passed is reinforced.
    Type: Grant
    Filed: June 7, 2020
    Date of Patent: July 19, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Hiromitsu Takei
  • ACTUATOR
    Publication number: 20220224213
    Abstract: In an actuator, damper members which connect a movable member and a fixed member are arranged at two places between the end portion of the shaft of the movable member on an L1 side and the opening portion of the first holder of the fixed member and between the end portion of the shaft of the movable member on an L2 side and the opening portion of a second holder. Each of the damper members includes a gel damper member serving as a connection member which is continuously arranged in a gap in a radial direction between the movable member and the fixed member over the entire circumference. In the gel damper member, an inner circumferential portion is fixed to the shaft through a cylindrical first member, and an outer circumferential portion is fixed to the fixed member through a cylindrical second member.
    Type: Application
    Filed: May 18, 2020
    Publication date: July 14, 2022
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Shogo KASAHARA, Masaaki ANDO, Shinji HATANO, Masao TSUCHIHASHI
  • Magnetic recording medium processing apparatus and magnetic field generation method
    Patent number: 11386277
    Abstract: A magnetic recording medium processing apparatus may include a coil structured to generate a magnetic field, a magnetic field generation control part which controls generation of the magnetic field in the coil, a sensor structured to execute acquisition of predetermined information, and a sensor control part which controls execution of the acquisition of the information in the sensor. The sensor control part may request the magnetic field generation control part to stop magnetic field generation from the coil at a timing earlier by a predetermined time period than a start timing when the sensor starts the acquisition of the information, and the magnetic field generation control part may stop the generation of the magnetic field from the coil when stop of the magnetic field generation is requested by the sensor control part.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: July 12, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Munemasa Momose
  • Motor
    Patent number: 11381143
    Abstract: A motor may include a rotor and a stator. The stator may include first and second stator assemblies. Each stator assembly may include a coil wound around a tube-shaped body part of a bobbin comprising a terminal block; and first and second stator cores disposed on opposite sides of the coil. The first stator cores of the first and second stator assemblies are welded together at outer peripheries of the first stator cores of the first and second stator assemblies. The welded portion may be covered by the terminal block of one of the first stator assembly or the second stator assembly on an outer side in the radial direction with a predetermined space between the welded portion and the terminal block.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: July 5, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Kazumi Furubayashi
  • Ice maker
    Patent number: 11378320
    Abstract: To provide an ice maker capable of suppressing damage to a frame. In an ice maker, an ice making tray, and a driving unit structured to cause the ice making tray to perform a flip operation and a twist operation are supported by a frame. With the frame, in an inner wall of a first side plate unit, there are provided a first inner wall portion extending in a first direction along the driving unit, and a second inner wall portion extending in the first direction along the ice making tray on the other side in a second direction with respect to the first inner wall portion, and in a step unit connecting the first inner wall portion and the second inner wall portion, there is provided a cutout serving as a through unit for passing a wire connected to the driving unit.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: July 5, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Shunji Saito, Katsuhiko Hayashi
  • Ice making machine
    Patent number: 11378321
    Abstract: An ice making machine is provided and includes: an ice tray, having a water storage recessed part; a drive part for reversing the ice tray around an axial line passing the ice tray between a water storage position and an ice separation position; and a frame, supporting the ice tray and the drive part. The ice tray includes a water receiving part protruded to an outer side in a portion which is moved to a lower side when the ice tray starts to turn to a CCW direction directing from the water storage position to the ice separation position. The frame includes a projected portion located on an upper side with respect to the water receiving part. The projected portion includes a water passage port for passing the water at a position overlapping with the water receiving part when being viewed in a Z-direction.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: July 5, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Akio Ishimizu, Shunji Saito, Katsuhiko Hayashi
  • Magnetic field generation device, magnetic recording medium processing apparatus, and magnetic field generation method
    Patent number: 11379674
    Abstract: A magnetic field generation device may include a coil generating a magnetic field, a drive part configured to apply a voltage to the coil or supply a current to the coil, a monitoring part configured to acquire state information whose value is varied together with temperature of the coil, and a control part which controls the voltage applied by the drive part or the current supplied by the drive part based on the state information acquired by the monitoring part.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: July 5, 2022
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Keiji Miyazawa, Yohei Shimizu, Satoru Aoki