Patents by Inventor Takuya Teramoto

Takuya Teramoto 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: 20180306034
    Abstract: A fan is equipped with a boss, a first blade member, and a second blade member. The boss has: a first end and a second end in an axial direction; an inclined surface inclined, in a direction from the second end to the first end, toward an axial center extending in the axial direction; and an outer peripheral surface located between the inclined surface and the second end. The boss is rotatable about the axial center. The first blade member is connected to the outer peripheral surface of the boss. The second blade member is connected to at least one of the inclined surface or the outer peripheral surface located between the inclined surface and a connecting portion where the first blade member is connected to the outer peripheral surface.
    Type: Application
    Filed: November 2, 2015
    Publication date: October 25, 2018
    Inventor: Takuya TERAMOTO
  • Publication number: 20170159662
    Abstract: A centrifugal fan may include an impeller arranged to rotate about a rotation axis, an impeller case arranged to accommodate the impeller, a motor arranged to rotate the impeller, and a motor case arranged to accommodate the motor. The impeller may include a boss portion joined to a shaft arranged to rotate about the rotation axis, a hub arranged to extend radially outward from the boss portion, and a plurality of blades. Each blade may be arranged to extend radially outward. An inner wall of the impeller case may include an inside surface extending radially outward along an upper end portion of each blade. A side end portion of an air inlet defined in a central portion of the impeller case may include a curved surface projecting radially inward.
    Type: Application
    Filed: February 21, 2017
    Publication date: June 8, 2017
    Inventors: Takuya TERAMOTO, Hiroyoshi TESHIMA
  • Patent number: 9574565
    Abstract: A centrifugal fan may include an impeller arranged to rotate about a rotation axis, an impeller case arranged to accommodate the impeller, a motor arranged to rotate the impeller, and a motor case arranged to accommodate the motor. The impeller may include a boss portion joined to a shaft arranged to rotate about the rotation axis, a hub arranged to extend radially outward from the boss portion, and a plurality of blades. Each blade may be arranged to extend radially outward. An inner wall of the impeller case may include an inside surface extending radially outward along an upper end portion of each blade. A side end portion of an air inlet defined in a central portion of the impeller case may include a curved surface projecting radially inward.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: February 21, 2017
    Assignee: NIDEC CORPORATION
    Inventors: Takuya Teramoto, Hiroyoshi Teshima
  • Publication number: 20160138611
    Abstract: A centrifugal blower includes a stator housing. The stator housing includes a radial contact surface which makes contact with a casing in a radial direction, a circumferential contact surface which makes contact with the casing in a circumferential direction, and an axial contact surface which makes contact with the casing in an axial direction. With such configuration, it is possible to reduce the vibration of the blower by increasing a contact area between the casing and the stator housing. Further, the stator housing includes a heat dissipating surface. As a result, it is possible to efficiently dissipate the heat, which is generated from the stator, from the heat dissipating surface of the stator housing to the gas existing within the wind tunnel.
    Type: Application
    Filed: September 2, 2015
    Publication date: May 19, 2016
    Inventor: Takuya TERAMOTO
  • Patent number: 8870528
    Abstract: A ventilation fan arranged to reduce vibrations includes an impeller rotating around a center axis, a motor portion arranged to rotate the impeller, a motor supporting portion arranged to support the motor portion, and a housing arranged to accommodate the impeller and the motor portion. The motor supporting portion includes a substantially disk-shaped base portion, and a substantially cylindrical bearing holding portion axially extending with the center axis as the center. At least the base portion is made from resin. On the surface of the base portion, a plurality of recessed portions which are axially recessed are arranged in the form of a net, a staggered pitch, a grid, or a honeycomb. A flat portion of the base portion excluding the recessed portions does not have a continuous region extending in a straight line radially from the center of the base portion.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: October 28, 2014
    Assignee: Nidec Corporation
    Inventors: Takuya Teramoto, Hiroyoshi Teshima
  • Publication number: 20130236303
    Abstract: A centrifugal fan may include an impeller arranged to rotate about a rotation axis, an impeller case arranged to accommodate the impeller, a motor arranged to rotate the impeller, and a motor case arranged to accommodate the motor. The impeller may include a boss portion joined to a shaft arranged to rotate about the rotation axis, a hub arranged to extend radially outward from the boss portion, and a plurality of blades. Each blade may be arranged to extend radially outward. An inner wall of the impeller case may include an inside surface extending radially outward along an upper end portion of each blade. A side end portion of an air inlet defined in a central portion of the impeller case may include a curved surface projecting radially inward.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 12, 2013
    Applicant: NIDEC CORPORATION
    Inventors: Takuya TERAMOTO, Hiroyoshi TESHIMA
  • Publication number: 20130230421
    Abstract: A centrifugal fan includes an impeller arranged to rotate about a rotation axis, a motor arranged to rotate the impeller, and a case arranged to accommodate the impeller and the motor. The case includes an upper case, a lower case, and a joint portion at which the upper and lower cases are fixed to each other. An interior of the case includes a first annular space positioned radially outward of the motor. The first annular space includes a second annular space defined by a portion of a space defined by an annularly continuous collection of imaginary circles each of whose diameter is the shortest distance between an inner circumferential edge of the joint portion and a radially outermost circumferential portion of a motor accommodating portion and each of which touches the inner circumferential edge of the joint portion.
    Type: Application
    Filed: February 11, 2013
    Publication date: September 5, 2013
    Applicant: NIDEC CORPORATION
    Inventors: Takuya TERAMOTO, Atsuo KONISHI, Hiroyoshi TESHIMA, Masashi HIRAYAMA
  • Publication number: 20120230815
    Abstract: A ventilation fan arranged to reduce vibrations includes an impeller rotating around a center axis, a motor portion arranged to rotate the impeller, a motor supporting portion arranged to support the motor portion, and a housing arranged to accommodate the impeller and the motor portion. The motor supporting portion includes a substantially disk-shaped base portion, and a substantially cylindrical bearing holding portion axially extending with the center axis as the center. At least the base portion is made from resin. On the surface of the base portion, a plurality of recessed portions which are axially recessed are arranged in the form of a net, a staggered pitch, a grid, or a honeycomb. A flat portion of the base portion excluding the recessed portions does not have a continuous region extending in a straight line radially from the center of the base portion.
    Type: Application
    Filed: February 28, 2012
    Publication date: September 13, 2012
    Applicant: Nidec Corporation
    Inventors: Takuya TERAMOTO, Hiroyoshi TESHIMA
  • Patent number: 8253286
    Abstract: A motor includes a coming-off preventing portion including an inner circumferential edge defining a through hole, inside which a substantially cylindrical bearing housing is inserted, and being arranged axially above an insulator. The inner circumferential edge has at least two different radial dimensions. A boss portion includes a columnar portion inserted inside the through hole, and a collar portion extending radially outward from a lower end of the columnar portion. The collar portion includes an outside surface having at least two different radial dimensions, and an upper surface arranged axially opposite a bottom portion of the inner circumferential edge. The radial dimensions of the inner circumferential edge and those of the collar portion are arranged to allow the collar portion to be axially inserted through the inner circumferential edge only when the inner circumferential edge and the collar portion are arranged in a predetermined circumferential orientation relative to each other.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: August 28, 2012
    Assignee: Nidec Corporation
    Inventors: Yuji Yabuuchi, Jumpei Kitamura, Atsushi Morita, Hiroyoshi Teshima, Takuya Teramoto
  • Patent number: 8092195
    Abstract: An electric motor includes a stator portion, a rotor portion, and a bearing mechanism, wherein the rotor portion includes a rotor holder having a substantially cylindrical shape with a closed end, and a field magnet fixed to an inner circumference of the rotor holder; the stator portion includes a stator, a base portion to which the stator is fixed, and a magnetic member; and the magnetic member includes a cylindrical portion having a substantially cylindrical shape into which a lower end portion of an insulator of the stator is inserted, the lower end portion being a portion of an outer portion of the insulator and opposing the base portion, and a flat portion having a substantially annular shape which spreads outwardly in a radial direction from a lower edge of the cylindrical portion and opposes a lower edge of the field magnet.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: January 10, 2012
    Assignee: Nidec Corporation
    Inventors: Koji Muraoka, Junpei Kitamura, Masashi Hirayama, Takuya Teramoto, Hiroyoshi Teshima, Yuji Yabuuchi
  • Publication number: 20100232993
    Abstract: A motor includes a coming-off preventing portion including an inner circumferential edge defining a through hole, inside which a substantially cylindrical bearing housing is inserted, and being arranged axially above an insulator. The inner circumferential edge has at least two different radial dimensions. A boss portion includes a columnar portion inserted inside the through hole, and a collar portion extending radially outward from a lower end of the columnar portion. The collar portion includes an outside surface having at least two different radial dimensions, and an upper surface arranged axially opposite a bottom portion of the inner circumferential edge. The radial dimensions of the inner circumferential edge and those of the collar portion are arranged to allow the collar portion to be axially inserted through the inner circumferential edge only when the inner circumferential edge and the collar portion are arranged in a predetermined circumferential orientation relative to each other.
    Type: Application
    Filed: March 9, 2010
    Publication date: September 16, 2010
    Applicant: NIDEC CORPORATION
    Inventors: Yuji YABUUCHI, Jumpei KITAMURA, Atsushi MORITA, Hiroyoshi TESHIMA, Takuya TERAMOTO
  • Publication number: 20090285699
    Abstract: An electric motor includes a stator portion, a rotor portion, and a bearing mechanism, wherein the rotor portion includes a rotor holder having a substantially cylindrical shape with a closed end, and a field magnet fixed to an inner circumference of the rotor holder; the stator portion includes a stator, a base portion to which the stator is fixed, and a magnetic member; and the magnetic member includes a cylindrical portion having a substantially cylindrical shape into which a lower end portion of an insulator of the stator is inserted, the lower end portion being a portion of an outer portion of the insulator and opposing the base portion, and a flat portion having a substantially annular shape which spreads outwardly in a radial direction from a lower edge of the cylindrical portion and opposes a lower edge of the field magnet.
    Type: Application
    Filed: May 15, 2009
    Publication date: November 19, 2009
    Applicant: Nidec Corporation
    Inventors: Koji Muraoka, Junpei Kitamura, Masashi Hirayama, Takuya Teramoto, Hiroyoshi Teshima, Yuji Yabuuchi