Patents Assigned to MINEBEA MITSUMI INC.
  • Patent number: 11411456
    Abstract: A motor includes an armature including a commutator, a bracket including a conductive brush and a first wall part, and a first deformable part. The conductive brush is in contact with the commutator. The first wall part includes a first surface extending along a first surface of the conductive brush. The first deformable part is in contact with both the first surface of the conductive brush and the first surface of the first wall part. The first deformable part is deformable in response to movement of the conductive brush.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: August 9, 2022
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Koichiro Hirabayashi, Yukimasa Matsumura, Akiko Ikuta, Minoru Kuroda, Bora In, Kazuaki Sato
  • Patent number: 11411466
    Abstract: A rotating device 1 according to the present application includes a motor 3, a gear 5 that transmits rotation of the motor 3 to an external device, and a sensor 7. The sensor 7 includes a sensor part 70 and a housing 72 that accommodates the sensor part 70. The sensor part 70 is capable of detecting a rotational speed or a rotational angle of the gear 5. The gear 5 includes a recess 50 in a rotational axis direction of the gear 5. The recess 50 accommodates a part of the housing 72.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: August 9, 2022
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Koichiro Hirabayashi, Yukimasa Matsumura
  • Publication number: 20220247293
    Abstract: A holder is used while attached to a chassis of a vibration generator that moves a vibrator to generate a vibration. The holder includes a vibrator retention unit retaining the vibrator, a fixed unit fixed to the chassis, and an arm. The arm connects the fixed unit and the vibrator retention unit, and the arm supports the vibrator retention unit while the vibrator retention unit can be displaced with respect to the fixed unit. The fixed unit, the arm, and the vibrator retention unit are integrally formed using resin.
    Type: Application
    Filed: April 20, 2022
    Publication date: August 4, 2022
    Applicant: MINEBEA MITSUMI INC.
    Inventors: Minoru KURODA, Makoto TANAKA
  • Publication number: 20220247292
    Abstract: Provided is a vibration actuator including: a movable part that gives vibration to a vibration presenting part that receives a pressing operation; a vibration generating part that generates the vibration of the movable part in accordance with the pressing operation; a base part; and an elastic support part. The movable part includes: a load detecting part provided between a presentation-part side fixing part and a support-part side fixing part and detecting, as a load, strain due to the pressing operation; and a movement regulating part provided on a side of the presentation-part side fixing part rather than the load detecting part. The movement regulating part regulates movement of the movable part by engaging with an engaged part of the base part via a buffer member when the movable part moves in a direction separating from the base part.
    Type: Application
    Filed: January 26, 2022
    Publication date: August 4, 2022
    Applicant: Minebea Mitsumi Inc.
    Inventors: Yuki TAKAHASHI, Tomoya ISHITANI, Junichi HASHINO, Soichi SATO
  • Patent number: 11404938
    Abstract: Provided is an angle detection apparatus making it possible to reduce the labor of manufacturing while also suppressing bulkiness. The angle detection apparatus includes a first rotating body (120), a second rotating body (122), a first transmission mechanism (111) that causes the second rotating body (122) to rotate by reducing a speed of a rotation of the first rotating body (120), a first angle detector (Ds) that detects a rotational angle of the first rotating body (120), another second angle detector (Dm) that detects a rotational angle of the second rotating body (122), and a processor (40) that specifies a number of revolutions (Rs) of the first rotating body (120).
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: August 2, 2022
    Assignee: MINEBEA MITSUMI Inc.
    Inventors: Yasuo Osada, Hiroyuki Hishiyama
  • Patent number: 11402253
    Abstract: A fluid sensing apparatus includes a fluid sensor configured to detect a temperature distribution on a detection surface caused by heating, and output a signal value corresponding to a flow of a fluid; a falling time counting unit configured to count a falling time of the signal value after stopping the heating; and a failure determining unit configured to perform failure determination based on the falling time.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: August 2, 2022
    Assignee: MINEBEA MITSUMI Inc.
    Inventors: Minoru Nagawatari, Satoshi Suzuki
  • Patent number: 11397047
    Abstract: A moisture detector includes a sensor chip and a moisture determining unit. The sensor chip includes a humidity detector having a detection surface on which to measure humidity, and also includes a heater heating the detection surface, and the moisture determining unit is configured to, after causing the heater to start heating, determine whether moisture is present on the detection surface based on a difference in changes in the humidity measured by the humidity detector.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: July 26, 2022
    Assignee: MINEBEA MITSUMI Inc.
    Inventor: Taketomo Nakane
  • Patent number: 11394285
    Abstract: A fixing body includes a coil holding part that is disposed to surround a magnet externally in a radial direction and holds the coil disposed outside the bobbin-shaped coil holding part in the radial direction. The coil holding part includes a coil protection wall portion that is disposed inside the coil in the radial direction of the coil with a gap being interposed between the coil protection wall portion and the magnet, and inhibits contact between the coil and the movable body. Elastic supporting parts are a plurality of leaf springs installed between the fixing body and the movable body to sandwich the movable body in the vibration direction, and support the movable body such that, in a non-vibration state and in a vibration state of the movable body, the movable body is freely movable in the vibration direction without making contact with the coil holding part.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: July 19, 2022
    Assignee: Minebea Mitsumi Inc.
    Inventors: Yuki Takahashi, Chikara Sekiguchi, Shigeyuki Shimomura, Yoshihiro Kumanomido, Daisuke Kodama, Yuta Yoshii, Shigenori Inamoto
  • Patent number: 11392205
    Abstract: Provided is a vibration actuator that gives vibration to a vibration presenting unit that presents vibration depending on a pressing operation, the vibration actuator comprising: a fixing part; a movable part fixed to the vibration presenting unit; an elastic support part connected to the fixing part and the movable part, and movably supports the movable part with respect to the fixing part; and a support-part side fixing part fixed to the elastic support part in the movable part; wherein a strain body that is strained in accordance with the pressing operation on the vibration presenting unit and a strain detection unit configured to detect strain of the strain body are provided between the support-part side fixing part and a presenting-unit side fixing part fixed to the vibration presenting unit, and the movable part is configured to vibrate by electromagnetic driving in accordance with the strain of the strain body.
    Type: Grant
    Filed: November 15, 2020
    Date of Patent: July 19, 2022
    Assignee: Minebea Mitsumi Inc.
    Inventors: Yuki Takahashi, Tomoya Ishitani, Takayuki Numakunai
  • Patent number: 11381139
    Abstract: To provide a motor inhibiting emission of electromagnetic noise (EMC) to the outside and a rotary apparatus including the motor. The rotary apparatus (10) of the present disclosure includes: a housing (20); a motor (40) arranged inside the housing (20); a circuit board (50) arranged inside the housing (20) and electrically connected to the motor (40); and a flexible wiring board (44) electrically connecting the motor (40) to the circuit board (50), the motor (40) including a frame (41a) formed with a conductive member, the frame (41a) electrically connected via the flexible wiring board (44) to a ground of the circuit board (50).
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: July 5, 2022
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Haruka Miyaji, Kazuo Takada, Shigeki Miyaji, Takayuki Matsui
  • Patent number: 11374478
    Abstract: A stepping motor has a relationship between an outer diameter of a rotor and an outer diameter of a bearing made of magnetic material that can be adjusted appropriately so as to impart magnetic attractive force to the bearing, the stepping motor including a rotor 400 made of a permanent magnet, a stator 500 including multiple pole teeth 223, 243, 323 and 343 extending in an axial direction of the rotor arranged at an outer circumferential side of the rotor 400, a bearing 250 rotatably supporting one end portion in the axial direction of the rotor 400, and a bearing 260 rotatably supporting the other end portion in the axial direction of the rotor 400.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: June 28, 2022
    Assignee: MINEBEA MITSUMI Inc.
    Inventors: Nobuyuki Sueyoshi, Mitsuo Kinoshita
  • Patent number: 11365984
    Abstract: The present invention provides an absolute encoder suitable for reduction in thickness. An absolute encoder, for determining a rotation amount of a main spindle that rotates a plurality of revolutions, includes a first drive gear configured to rotate in accordance with rotation of the main spindle; a first driven gear that engages with the first drive gear; a second drive gear configured to rotate in accordance with rotation of the first driven gear; a second driven gear that engages with the second drive gear; and an angular sensor configured to detect a rotation angle at which a second rotating body is rotated in accordance with rotation of the second driven gear.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: June 21, 2022
    Assignee: MINEBEA MITSUMI Inc.
    Inventor: Yasuo Osada
  • Patent number: 11339795
    Abstract: An air blower enabling efficient cooling is provided. The air blower (1) includes: an impeller (3); and a motor (5), wherein the impeller (3) includes a plurality of first blades (32) and a cup (33) arranged at the inner periphery side d of the plurality of first blades (32), the motor (5) includes a housing (51) arranged inside the cup (33), a stator (73), and a rotor (52) arranged inside the stator, and an outer peripheral surface (41c) of the cup (33) is provided with an opening part (43) facing an outer peripheral surface (51c) of the housing (51).
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: May 24, 2022
    Assignee: MINEBEA MITSUMI Inc.
    Inventor: Yoshikazu Saka
  • Patent number: 11336155
    Abstract: To improve the EMC performance of an electronic device on which a motor is mounted.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: May 17, 2022
    Assignee: MINEBEA MITSUMI Inc.
    Inventors: Toshiaki Seima, Koichi Tamai, Haruomi Morohashi, Kazuaki Saito
  • Patent number: 11336291
    Abstract: A semiconductor device has an A/D converter configured to convert an analog signal representing a current flowing in a control target into a digital signal, an overcurrent determination unit configured to, based on the analog signal, determine that an overcurrent has occurred in the control target when the current flowing in the control target has exceeded an overcurrent threshold, and determine that the overcurrent has not occurred in the control target when the current flowing in the control target has not exceeded the overcurrent threshold, a drive control signal generation unit configured to generate a drive control signal for controlling driving of the control target so that the current flowing in the control target is equal to a target current, based on a conversion result of the A/D converter, and generate the drive control signal to reduce the current flowing in the control target when the overcurrent determination unit determines that the overcurrent has occurred, and an overcurrent threshold setting
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: May 17, 2022
    Assignee: MINEBEA MITSUMI Inc.
    Inventor: Masato Aoki
  • Patent number: 11336164
    Abstract: A holder is used while attached to a chassis of a vibration generator that moves a vibrator to generate a vibration. The holder includes a vibrator retention unit retaining the vibrator, a fixed unit fixed to the chassis, and an arm. The arm connects the fixed unit and the vibrator retention unit, and the arm supports the vibrator retention unit while the vibrator retention unit can be displaced with respect to the fixed unit. The fixed unit, the arm, and the vibrator retention unit are integrally formed using resin.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: May 17, 2022
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Minoru Kuroda, Makoto Tanaka
  • Patent number: 11326967
    Abstract: A strain gauge includes a strain detecting unit and a temperature detecting unit that are formed on or above a flexible substrate. The strain detecting unit includes a resistor formed as a film containing Cr, CrN, and Cr2N, on one surface of a functional layer. A first metallic layer formed of a material of which a gauge factor is less than that of the resistor is laminated on a folded portion, and a resistance value of the first metallic layer on the folded portion is less than a resistance value of the folded portion. The temperature detecting unit is a thermocouple including a second metallic layer formed of a same material as the resistor, on or above the substrate; and a third metallic layer formed of a same material as the first metallic layer, on the second metallic layer.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: May 10, 2022
    Assignee: MINEBEA MITSUMI Inc.
    Inventors: Shinya Toda, Atsushi Kitamura, Akiyo Yuguchi
  • Patent number: 11328891
    Abstract: The disclosure relates to a rotating-anode bearing for an X-ray tube comprising a rotor shaft extending along a longitudinal axis from a first axial end to a second axial end and supported to be rotatable about the longitudinal axis; wherein the rotor shaft has an anode holder in the area of the first axial end; and the anode holder comprises a flange which has a larger diameter than at least an adjacent section of the rotor shaft. The rotating-anode bearing according to the disclosure wherein the rotor shaft together with the flange is made as an integrally forged part.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: May 10, 2022
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Peter Andreas Muller
  • Patent number: D953903
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: June 7, 2022
    Assignee: MINEBEA MITSUMI Inc.
    Inventors: Eiji Misaizu, Akiyo Yuguchi, Shigeyuki Adachi, Toshiaki Asakawa, Atsushi Kitamura
  • Patent number: D953904
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: June 7, 2022
    Assignee: MINEBEA MITSUMI Inc.
    Inventors: Eiji Misaizu, Akiyo Yuguchi, Shigeyuki Adachi, Toshiaki Asakawa, Atsushi Kitamura