Patents by Inventor Minoru Kuroda

Minoru Kuroda 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: 10958124
    Abstract: A motor includes a rotor, a frame accommodating the rotor, a cover provided at one of two ends of the frame in a direction of a rotor axis, an internal space formed by the frame and the cover and a partition part partitioning the internal space into two spaces. The partition part includes an insertion portion. A part of the cover is inserted into the insertion portion.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: March 23, 2021
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Minoru Kuroda
  • Patent number: 10903713
    Abstract: An inner-rotor motor including: an armature assembly including a rotating shaft, an armature unit coupled to the rotating shaft and a pressing unit; a frame assembly including a frame housing the armature unit, a first bearing unit located on one side with respect to the armature unit in an axial direction, and a second bearing unit located on another side with respect to the armature unit in the axial direction; and an urging structure that urges the rotating shaft in a direction away from the second bearing unit and that presses the pressing unit toward the first bearing unit.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: January 26, 2021
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Hiroaki Mochizuki, Minoru Kuroda
  • Patent number: 10873235
    Abstract: A DC motor includes: a brush configured to be connectable with the commutator; a first terminal attached to the brush; a second terminal disposed at a position away from the first terminal, the second terminal being configured to be connectable with an external terminal; a bracket to which the first terminal and the second terminal are attached; and a positive temperature coefficient (PTC) thermistor disposed between the first terminal and the second terminal, the PTC thermistor including a first electrode bonded to the first terminal and a second electrode bonded to the second terminal, wherein the PTC thermistor is a surface-mount type thermistor in which the first electrode and the second electrode are exposed on one surface side and wherein, on the one surface side of the PTC thermistor, the first electrode faces the first terminal and the second electrode faces the second terminal.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: December 22, 2020
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Minoru Kuroda
  • Publication number: 20200395813
    Abstract: To provide a rotary apparatus able to facilitate assembly of the rotary apparatus, and an attaching structure of the rotary apparatus. A rotary apparatus (1) includes a motor (10) having motor terminals (13), terminal members (21) and (22), a first housing (60), the terminal members (21) and (22) being attached to the first housing (60), and a second housing (40) having an accommodating part configured to accommodate the motor (10), the first housing (60) being attached to the second housing (40). The first housing (60) is attachable to or separable from the second housing (40) in a predetermined direction. The terminal members (21) and (22) are electrically connected to the motor terminals (13). The terminal members (21) and (22) have externally-connected terminal portions (33) and (34) to be connected to an external unit. The predetermined direction is a longitudinal direction of the externally-connected terminal portions (33) and (34).
    Type: Application
    Filed: February 18, 2019
    Publication date: December 17, 2020
    Inventor: Minoru KURODA
  • Patent number: 10790735
    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: January 27, 2017
    Date of Patent: September 29, 2020
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Minoru Kuroda, Makoto Tanaka
  • Patent number: 10778074
    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: January 27, 2017
    Date of Patent: September 15, 2020
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Minoru Kuroda, Makoto Tanaka
  • Publication number: 20200220420
    Abstract: An inner-rotor motor including: an armature assembly including a rotating shaft, an armature unit coupled to the rotating shaft and a pressing unit; a frame assembly including a frame housing the armature unit, a first bearing unit located on one side with respect to the armature unit in an axial direction, and a second bearing unit located on another side with respect to the armature unit in the axial direction; and an urging structure that urges the rotating shaft in a direction away from the second bearing unit and that presses the pressing unit toward the first bearing unit.
    Type: Application
    Filed: March 23, 2020
    Publication date: July 9, 2020
    Inventors: Hiroaki MOCHIZUKI, Minoru KURODA
  • Publication number: 20190280541
    Abstract: A motor includes a rotary shaft, an armature part, a frame including a tubular portion surrounding the armature part, and a plurality of magnets. The tubular portion is formed of a magnetic body. The tubular portion includes a plurality of flat parts and a plurality of curved parts. Each of the plurality of flat parts and each of the plurality of curved parts being alternately arranged in a peripheral direction. On an inner surface of the tubular portion in each of the plurality of curved parts, a plurality of magnetic poles are provided. A magnetic gap is provided in a radial direction, the magnetic gap being formed by the inner surface of the tubular portion in each of the plurality of flat parts and the armature part.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 12, 2019
    Inventor: Minoru KURODA
  • Publication number: 20190273425
    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: May 20, 2019
    Publication date: September 5, 2019
    Applicant: MINEBEA CO., LTD.
    Inventors: Minoru KURODA, Makoto TANAKA
  • Patent number: 10298106
    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: January 27, 2017
    Date of Patent: May 21, 2019
    Assignee: MINEBEA CO., LTD.
    Inventors: Minoru Kuroda, Makoto Tanaka
  • Patent number: 10284046
    Abstract: There is provided a DC brush motor that is provided with: a magnet; an armature configured to rotate relative to the magnet about a rotary axis, the armature comprising a commutator; a bracket configured to cover one end portion of the magnet and the armature at one side along the rotary axis; a female terminal that is fixed to the bracket; a brush that is electrically connected to the female terminal, and a sealing member that is fixed to the bracket. The bracket is provided with a recessed portion formed on an outer periphery thereof and configured to accommodate therein the female terminal. The sealing member is configured to seal between the recessed portion and a space where the commutator and the brush exist.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: May 7, 2019
    Assignee: Minebea Co., Ltd.
    Inventors: Minoru Kuroda, Masami Ota
  • Publication number: 20180375413
    Abstract: A small DC motor includes a motor frame having a cylindrical portion, the cylindrical portion having a constant thickness and having a cross section in a shape that comprises four sides and connecting portions, each of the connecting portions connecting adjacent two of the four sides and being located inward from a corresponding corner in a quadrangle comprising the four sides; and a magnet having a circumferential surface on an inside thereof and having conformable contact with the motor frame on an outside thereof.
    Type: Application
    Filed: August 30, 2018
    Publication date: December 27, 2018
    Applicant: MINEBEA MITSUMI INC.
    Inventor: Minoru KURODA
  • Publication number: 20180254690
    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: January 27, 2017
    Publication date: September 6, 2018
    Applicant: MINEBEA CO., LTD.
    Inventors: Minoru KURODA, Makoto TANAKA
  • Patent number: 10069391
    Abstract: A small DC motor includes a motor frame having a cylindrical portion, the cylindrical portion having a constant thickness and having a cross section in a shape that comprises four sides and connecting portions, each of the connecting portions connecting adjacent two of the four sides and being located inward from a corresponding corner in a quadrangle comprising the four sides; and a magnet having a circumferential surface on an inside thereof and having conformable contact with the motor frame on an outside thereof.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: September 4, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Minoru Kuroda
  • Publication number: 20180245244
    Abstract: A pile fabric includes a plurality of pile portions including a long pile portion and a short pile portion. The short pile portion includes first fibers, and the long pile portion includes second fibers including modified cross-section fibers A. The modified cross-section fibers A have one or more cross-sectional shapes selected from the group consisting of C-shaped cross-sectional shapes and H-shaped cross-sectional shapes, and have a single fiber fineness of 15 to 60 dtex.
    Type: Application
    Filed: April 30, 2018
    Publication date: August 30, 2018
    Applicant: Kaneka Corporation
    Inventors: Takao Michinobu, Wataru Mio, Minoru Kuroda
  • Publication number: 20180091025
    Abstract: A DC motor includes: a brush configured to be connectable with the commutator; a first terminal attached to the brush; a second terminal disposed at a position away from the first terminal, the second terminal being configured to be connectable with an external terminal; a bracket to which the first terminal and the second terminal are attached; and a positive temperature coefficient (PTC) thermistor disposed between the first terminal and the second terminal, the PTC thermistor including a first electrode bonded to the first terminal and a second electrode bonded to the second terminal, wherein the PTC thermistor is a surface-mount type thermistor in which the first electrode and the second electrode are exposed on one surface side and wherein, on the one surface side of the PTC thermistor, the first electrode faces the first terminal and the second electrode faces the second terminal.
    Type: Application
    Filed: September 26, 2017
    Publication date: March 29, 2018
    Inventor: Minoru KURODA
  • Publication number: 20180069448
    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: Application
    Filed: September 1, 2017
    Publication date: March 8, 2018
    Inventors: Koichiro HIRABAYASHI, Yukimasa MATSUMURA, Akiko IKUTA, Minoru KURODA, Bora IN, Kazuaki SATO
  • Publication number: 20180069458
    Abstract: A motor includes a commutator, a bracket including a conductive brush, first and second wall parts, and first and second deformable parts. 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 second wall part includes a second surface extending along a second surface of the conductive brush located on a side opposite the 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, and is deformable in response to movement of the conductive brush. The second deformable part is in contact with both the second surface of the conductive brush and the second surface of the second wall part, and is deformable in response to movement of the conductive brush.
    Type: Application
    Filed: September 1, 2017
    Publication date: March 8, 2018
    Inventors: Koichiro HIRABAYASHI, Akiko IKUTA, Yukimasa MATSUMURA, Kazuaki SATO, Minoru KURODA, Bora IN
  • Publication number: 20170302131
    Abstract: A motor includes a rotor, a frame accommodating the rotor, a cover provided at one of two ends of the frame in a direction of a rotor axis, an internal space formed by the frame and the cover and a partition part partitioning the internal space into two spaces. The partition part includes an insertion portion. A part of the cover is inserted into the insertion portion.
    Type: Application
    Filed: April 10, 2017
    Publication date: October 19, 2017
    Applicant: MINEBEA MITSUMI INC.
    Inventor: Minoru KURODA
  • Publication number: 20170187260
    Abstract: An inner-rotor motor including: an armature assembly including a rotating shaft, an armature unit coupled to the rotating shaft and a pressing unit; a frame assembly including a frame housing the armature unit, a first bearing unit located on one side with respect to the armature unit in an axial direction, and a second bearing unit located on another side with respect to the armature unit in the axial direction; and an urging structure that urges the rotating shaft in a direction away from the second bearing unit and that presses the pressing unit toward the first bearing unit.
    Type: Application
    Filed: December 12, 2016
    Publication date: June 29, 2017
    Applicant: MINEBEA CO., LTD.
    Inventors: Hiroaki MOCHIZUKI, Minoru KURODA