Patents Assigned to MINEBEA MITSUMI INC.
  • Patent number: 9991826
    Abstract: A motor control circuit comprising a speed control circuit configured to output speed command information relating to the rotational speed of a motor based on target information relating to a target rotational speed and rotational speed detection information of the rotational speed of the motor, a drive stop control circuit configured to output a first drive stop control signal for performing braking control of the motor or a second drive stop control signal for performing free-run stop control of the motor based on the rotational speed detection information and the speed command information when input of the target information is stopped, and a drive signal generation circuit configured to generate a drive control signal for driving the motor based on the first drive stop control signal or the second drive stop control signal when the first drive stop control signal or the second drive stop control signal is output.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: June 5, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Keiichi Katayama
  • Patent number: 9964282
    Abstract: An illumination device according to an embodiment includes a light emitting element, a light distribution control unit and a light diffuser. The light distribution control unit is arranged at an emission direction side of light of the light emitting element. The light diffuser is arranged at an advancing direction side of the light relative to the light distribution control unit, in which each of a plurality of rows of convex portions having biaxial anisotropy in a plan view extends in a predetermined anisotropic axis direction, in which the plurality of rows is arranged orthogonal to the predetermined anisotropic axis and has grooves of irregular depths between the arranged plurality of rows of the convex portions.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: May 8, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Akari Yamada, Reishi Shimaoka
  • Patent number: 9945748
    Abstract: A pressure sensor includes a sensor member including a sensor face to which pressure is imparted and a cover member that covers at least part of the peripheral face of the sensor member while exposing the sensor face out of one end side. With such a configuration, the sensor member can be protected from a lateral force (side pressure), whereby the sensor member can be prevented from being broken by the application of the side pressure to the sensor member.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: April 17, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Kiyoshi Omori, Hiroyuki Omae, Akira Muto, Tomoaki Watanuki
  • Publication number: 20170373622
    Abstract: This motor control device has an inexpensive configuration and enhances motor current target value tracking. This motor control device has an H bridge circuit that has a switching element and is connected to a motor coil provided in a motor, and a control means that drives the switching element at each prescribed PWM period and specifies an operation mode for the H bridge circuit from among a charge mode for increasing the motor current (Icoil) flowing through the motor coil, a fast decay mode for decreasing the motor current, and a slow decay mode.
    Type: Application
    Filed: December 25, 2015
    Publication date: December 28, 2017
    Applicant: Minebea Mitsumi Inc.
    Inventor: Hidetoshi Hijikata
  • Publication number: 20170361681
    Abstract: A rotary apparatus includes a motor, a plurality of gears including an output gear, and a housing accommodating the plurality of gears and the motor. The housing includes a first surface portion, a second surface portion facing the first surface portion and spaced apart from the first surface portion, and a sidewall portion provided at an outer peripheral portion of the first surface portion and the second surface portion and supporting the first surface portion and the second surface portion. One of the first surface portion and the second surface portion includes a vibration damping part opposing the output gear.
    Type: Application
    Filed: June 12, 2017
    Publication date: December 21, 2017
    Applicant: MINEBEA MITSUMI INC.
    Inventor: Yukimasa MATSUMURA
  • Publication number: 20170355054
    Abstract: The present invention provides a technique in which service life of a coolant application device can be extended. The coolant application device includes a nozzle body which spouts coolant, a hollow shaft which rotates the nozzle body, a motor which controls a rotation angle of the hollow shaft, and an Oldham coupling portion which connects the hollow shaft and an output shaft of the motor, the Oldham coupling portion transmits driving force of the motor to the hollow shaft, allowing a misalignment between an axis of the hollow shaft and an axis of the output shaft.
    Type: Application
    Filed: November 27, 2015
    Publication date: December 14, 2017
    Applicant: MINEBEA MITSUMI Inc.
    Inventor: Yoshikazu NAKAMARU
  • Publication number: 20170349851
    Abstract: There is provided an ultraviolet curable resin composition for a self-lubricating liner, including: a (meth)acrylate compound having an isocyanuric acid ring; at least one of (meth)acrylate having a phosphoric acid ester group and (meth)acrylate having a silane group: a polythiol compound; and a polytetrafluoroethylene resin as a solid lubricant.
    Type: Application
    Filed: May 31, 2017
    Publication date: December 7, 2017
    Applicant: MINEBEA MITSUMI INC.
    Inventors: Hirotaka TOHYAMA, Tadahiko KARAKI, Yuko TAGUCHI, Kentaro ISHIKAWA
  • Publication number: 20170343045
    Abstract: A rolling bearing is filled with a grease composition that contains a fluorine-based grease including a fluorine-based base oil and a fluorine-based thickener, a non-fluorine-based grease including a non-fluorine-based base oil and a non-fluorine-based thickener, and an additive serving as a dispersant. The non-fluorine-based thickener includes at least one of aliphatic-aromatic urea, alicyclic-aliphatic urea and aliphatic urea. The dispersant includes at least one of polycarboxylic acid metal salt, fluorine-containing group/lipophilic group-containing oligomer, fluorinated ether diamide, and organic acid metal salt.
    Type: Application
    Filed: May 23, 2017
    Publication date: November 30, 2017
    Applicant: MINEBEA MITSUMI INC.
    Inventors: Yusuke ASAI, Shintaro TAKATA, Akimi FURUKOSHI
  • Publication number: 20170343432
    Abstract: A load detection apparatus includes a load input portion having a input surface, and an output surface; a flexure element including on annular portion including a contacting portion configured to make contact with at least a part of the output surface, and a support portion; a set of sensors disposed on a reverse surface opposite to a surface provided with the contacting portion in the annular portion, each of the set of sensors being configured to detect distortion corresponding to an input load; a set of calculation portions configured to calculate a set of magnitudes of the load by use of respective detection results obtained by the set of sensors; and an abnormality determination portion configured to determine whether the set of sensors and the set of calculation portions have no abnormality, by comparing the set of magnitudes of the load with each other.
    Type: Application
    Filed: May 25, 2017
    Publication date: November 30, 2017
    Applicants: AISIN SEIKI KABUSHIKI KAISHA, MINEBEA MITSUMI Inc.
    Inventors: Naoya IESATO, Yasukuni OJIMA, Dohaku INAMORI, Kotaro EGUCHI
  • Publication number: 20170343721
    Abstract: A planar illumination apparatus according to an embodiment includes a light guide plate configured to emit, from an exit surface, light incident from a side surface, a frame including a border that encloses the light guide plate, and a plate spring provided between the light guide plate and the border and configured to press the light guide plate in a first direction and in a second direction different from the first direction.
    Type: Application
    Filed: May 19, 2017
    Publication date: November 30, 2017
    Applicant: MINEBEA MITSUMI INC.
    Inventors: Shohei TAKADA, Takashi ISHII
  • Patent number: D806303
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: December 26, 2017
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Nobuki Matsui
  • Patent number: D806719
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: January 2, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Hiroyuki Akatsu, Norihito Iida
  • Patent number: D806925
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: January 2, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Tetsuyuki Hirano, Masayoshi Hosogai
  • Patent number: D807552
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: January 9, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Kunihiko Iguchi
  • Patent number: D809177
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: January 30, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Shinichi Fujisawa
  • Patent number: D817532
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: May 8, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Kunihiko Iguchi
  • Patent number: D817973
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: May 15, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Hiroyuki Akatsu, Norihito Iida
  • Patent number: D817974
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: May 15, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Hiroyuki Akatsu, Norihito Iida
  • Patent number: D818382
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: May 22, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Kunihiko Sato, Norihito Iida, Jun Hatcho, Nobukazu Yokoi
  • Patent number: D818383
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: May 22, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Kunihiko Sato, Norihito Iida, Jun Hatcho