Patents by Inventor Hidenobu Takeshita
Hidenobu Takeshita 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).
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Patent number: 11905960Abstract: A fan motor includes a motor including a stationary portion and a rotating portion arranged to rotate about a rotation axis extending in a vertical direction; an impeller including a plurality of blades, and arranged to rotate together with the rotating portion; a housing arranged to house the motor and the impeller therein; and a plurality of lead wires each of which is connected to the motor and is arranged to extend radially outward.Type: GrantFiled: October 2, 2020Date of Patent: February 20, 2024Assignee: NIDEC CORPORATIONInventors: Guiling Zhang, Hidenobu Takeshita
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Patent number: 11898563Abstract: An axial fan includes a housing, an upper motor, and a lower motor. The housing includes an upper housing and a lower housing. A lower peripheral wall of the lower housing includes first engaging portions and lower protruding pieces. The lower protruding pieces oppose the first engaging portions in an axial direction and protrude axially upward from an axially upper surface. An upper peripheral wall of the upper housing includes upper engaging claws and upper notch grooves. The upper engaging claws extend axially downward from an axially lower surface, and include a second engaging portion that engages with the first engaging portion in a lower end portion. The upper notch grooves are notched axially upward from the axially lower surface radially inward of the upper engaging claw. At least a portion of the lower protruding pieces is located in the upper notch grooves.Type: GrantFiled: December 1, 2022Date of Patent: February 13, 2024Assignee: NIDEC CORPORATIONInventors: Kazuhiro Inouchi, Yuta Yamasaki, Hidefumi Kawakami, Hidenobu Takeshita
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Publication number: 20230085818Abstract: An axial fan includes a housing, an upper motor, and a lower motor. The housing includes an upper housing and a lower housing. A lower peripheral wall of the lower housing includes first engaging portions and lower protruding pieces. The lower protruding pieces oppose the first engaging portions in an axial direction and protrude axially upward from an axially upper surface. An upper peripheral wall of the upper housing includes upper engaging claws and upper notch grooves. The upper engaging claws extend axially downward from an axially lower surface, and include a second engaging portion that engages with the first engaging portion in a lower end portion. The upper notch grooves are notched axially upward from the axially lower surface radially inward of the upper engaging claw. At least a portion of the lower protruding pieces is located in the upper notch grooves.Type: ApplicationFiled: December 1, 2022Publication date: March 23, 2023Inventors: Kazuhiro INOUCHI, Yuta YAMASAKI, Hidefumi KAWAKAMI, Hidenobu TAKESHITA
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Patent number: 11536275Abstract: An axial fan includes a housing, an upper motor, and a lower motor. The housing includes an upper housing and a lower housing. A lower peripheral wall of the lower housing includes first engaging portions and lower protruding pieces. The lower protruding pieces oppose the first engaging portions in an axial direction and protrude axially upward from an axially upper surface. An upper peripheral wall of the upper housing includes upper engaging claws and upper notch grooves. The upper engaging claws extend axially downward from an axially lower surface, and include a second engaging portion that engages with the first engaging portion in a lower end portion. The upper notch grooves are notched axially upward from the axially lower surface radially inward of the upper engaging claw. At least a portion of the lower protruding pieces is located in the upper notch grooves.Type: GrantFiled: July 29, 2021Date of Patent: December 27, 2022Assignee: NIDEC CORPORATIONInventors: Kazuhiro Inouchi, Yuta Yamasaki, Hidefumi Kawakami, Hidenobu Takeshita
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Patent number: 11384767Abstract: A blower apparatus includes a casing, ribs located radially inward of the casing and integrally provided with the casing, a motor housing located radially inward of the ribs and integrally provided with the ribs, a first housing located radially inward of the motor housing, a first motor supported on one side in an axial direction by the first housing, a first impeller rotatable around the central axis on one side in the axial direction by the first motor, a second housing located on the other side of the first housing in the axial direction, a second motor supported on the other side in the axial direction by the second housing, and a second impeller rotatable around the central axis on the other side in the axial direction by the second motor. The second housing is fixed to the first housing.Type: GrantFiled: September 18, 2019Date of Patent: July 12, 2022Assignee: NIDEC CORPORATIONInventors: Guiling Zhang, Hidenobu Takeshita
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Patent number: 11252837Abstract: A cooling apparatus includes a cold plate including a lower surface to be in contact with a heat-radiating component, and a first coolant passage in which a coolant flows, a radiator including fins to perform cooling and pipes each defining a second coolant passage in communication with the first coolant passage, a pump to circulate the coolant, a first tank joined to one end of each of the pipes, and a second tank to join another end of each of the pipes to the pump. The radiator is provided on the cold plate, and the pump is adjacent to the second tank.Type: GrantFiled: March 11, 2019Date of Patent: February 15, 2022Assignee: NIDEC CORPORATIONInventors: Nobuya Nakae, Akihiko Makita, Hidenobu Takeshita, Tomotsugu Sugiyama, Toshihiko Tokeshi, Takehito Tamaoka
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Publication number: 20220034325Abstract: An axial fan includes a housing, an upper motor, and a lower motor. The housing includes an upper housing and a lower housing. A lower peripheral wall of the lower housing includes first engaging portions and lower protruding pieces. The lower protruding pieces oppose the first engaging portions in an axial direction and protrude axially upward from an axially upper surface. An upper peripheral wall of the upper housing includes upper engaging claws and upper notch grooves. The upper engaging claws extend axially downward from an axially lower surface, and include a second engaging portion that engages with the first engaging portion in a lower end portion. The upper notch grooves are notched axially upward from the axially lower surface radially inward of the upper engaging claw. At least a portion of the lower protruding pieces is located in the upper notch grooves.Type: ApplicationFiled: July 29, 2021Publication date: February 3, 2022Inventors: Kazuhiro INOUCHI, Yuta YAMASAKI, Hidefumi KAWAKAMI, Hidenobu TAKESHITA
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Patent number: 11236738Abstract: A cooling apparatus includes a cold plate including a lower surface to be in contact with a heat-radiating component, and a first coolant passage in which a coolant flows, a radiator including fins to perform cooling, and a second coolant passage in which the coolant flows, and a pump connected to each of the first coolant passage and the second coolant passage to circulate the coolant. The radiator is provided on the cold plate. The pump is adjacent to the radiator.Type: GrantFiled: March 11, 2019Date of Patent: February 1, 2022Assignee: NIDEC CORPORATIONInventors: Nobuya Nakae, Akihiko Makita, Hidenobu Takeshita, Tomotsugu Sugiyama
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Publication number: 20210018010Abstract: A fan motor includes a motor including a stationary portion and a rotating portion arranged to rotate about a rotation axis extending in a vertical direction; an impeller including a plurality of blades, and arranged to rotate together with the rotating portion; a housing arranged to house the motor and the impeller therein; and a plurality of lead wires each of which is connected to the motor and is arranged to extend radially outward.Type: ApplicationFiled: October 2, 2020Publication date: January 21, 2021Inventors: Guiling ZHANG, Hidenobu TAKESHITA
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Patent number: 10844865Abstract: A fan motor includes a motor including a stationary portion and a rotating portion arranged to rotate about a rotation axis extending in a vertical direction; an impeller including a plurality of blades, and arranged to rotate together with the rotating portion; a housing arranged to house the motor and the impeller therein; and a plurality of lead wires each of which is connected to the motor and is arranged to extend radially outward.Type: GrantFiled: May 23, 2017Date of Patent: November 24, 2020Assignee: NIDEC CORPORATIONInventors: Guiling Zhang, Hidenobu Takeshita
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Publication number: 20200095999Abstract: A blower apparatus includes a casing, ribs located radially inward of the casing and integrally provided with the casing, a motor housing located radially inward of the ribs and integrally provided with the ribs, a first housing located radially inward of the motor housing, a first motor supported on one side in an axial direction by the first housing, a first impeller rotatable around the central axis on one side in the axial direction by the first motor, a second housing located on the other side of the first housing in the axial direction, a second motor supported on the other side in the axial direction by the second housing, and a second impeller rotatable around the central axis on the other side in the axial direction by the second motor. The second housing is fixed to the first housing.Type: ApplicationFiled: September 18, 2019Publication date: March 26, 2020Inventors: Guiling ZHANG, Hidenobu TAKESHITA
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Publication number: 20200096000Abstract: A blower apparatus includes a casing that houses a first impeller, a first motor, a first circuit board, a second impeller, a second motor, and a second circuit board, a motor housing integrally provided with the casing, a first housing that supports the first motor, and a second housing that supports the second motor. The first housing or the second housing includes a first recessed portion into which a mounted component on the first circuit board is inserted from a first side in the axial direction, and a second recessed portion into which a mounted component on the second circuit board is inserted from a second side in the axial direction. In the first housing or the second housing, the first recessed portion and the second recessed portion are offset from each other in at least one of the circumferential direction and the radial direction.Type: ApplicationFiled: September 18, 2019Publication date: March 26, 2020Inventors: Guiling ZHANG, Hidenobu TAKESHITA
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Publication number: 20190307020Abstract: A cooling apparatus includes a cold plate including a lower surface to be in contact with a heat-radiating component, and a first coolant passage in which a coolant flows, a radiator including fins to perform cooling, and a second coolant passage in which the coolant flows, and a pump connected to each of the first coolant passage and the second coolant passage to circulate the coolant. The radiator is provided on the cold plate. The pump is adjacent to the radiator.Type: ApplicationFiled: March 11, 2019Publication date: October 3, 2019Inventors: Nobuya NAKAE, Akihiko MAKITA, Hidenobu TAKESHITA, Tomotsugu SUGIYAMA
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Publication number: 20190307019Abstract: A cooling apparatus includes a cold plate including a lower surface to be in contact with a heat-radiating component, and a first coolant passage in which a coolant flows, a radiator including fins to perform cooling and pipes each defining a second coolant passage in communication with the first coolant passage, a pump to circulate the coolant, a first tank joined to one end of each of the pipes, and a second tank to join another end of each of the pipes to the pump. The radiator is provided on the cold plate, and the pump is adjacent to the second tank.Type: ApplicationFiled: March 11, 2019Publication date: October 3, 2019Inventors: Nobuya NAKAE, Akihiko MAKITA, Hidenobu TAKESHITA, Tomotsugu SUGIYAMA, Toshihiko TOKESHI, Takehito TAMAOKA
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Patent number: 10408216Abstract: A fan motor includes an electric motor including a stationary unit and a rotary unit, an impeller including blades and rotating together with the rotary unit, a housing accommodating the electric motor and the impeller, lead wires connected to the electric motor and extending radially outward, and a guide member. The housing includes a tubular portion extending along a rotation axis and accommodating at least a part of the impeller, a flange portion protruding radially outward from at least a part of the tubular portion, a lead wire outlet port provided in at least a part of the tubular portion, and a vertical groove communicating with the lead wire outlet port and penetrating the flange portion in an axial direction. The guide member is disposed inside the vertical groove, and at least a part of the lead wires is accommodated radially inward of the guide member in the vertical groove.Type: GrantFiled: April 27, 2017Date of Patent: September 10, 2019Assignee: NIDEC CORPORATIONInventors: Hidenobu Takeshita, Yasuyuki Kaji, Tatsuki Yoshida
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Patent number: 10267338Abstract: An impeller includes a hub rotated about an up-down axis and inclined blades disposed circumferentially on a hub's outer circumferential surface. The outer circumferential surface includes a first surface including a portion axially overlapping the blade above its joined portion to the blade, a second surface including a portion axially overlapping the blade below the joined portion, and a connecting portion connecting a rotating-direction rear end of the first outer circumferential surface and a rotating-direction front end of the second outer circumferential surface. The connecting portion is arranged forward of a rotating-direction blade front edge. A distance from the axis to a first point, positioned at the rotating-direction rear end of the first outer circumferential surface, is not shorter than that from the axis to a second point, positioned at the rotating-direction front end of the second outer circumferential surface and at the same axial position as the first point.Type: GrantFiled: July 25, 2017Date of Patent: April 23, 2019Assignee: Nidec CorporationInventors: Hidenobu Takeshita, Yasuyuki Kaji, Guiling Zhang
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Publication number: 20180031003Abstract: An impeller includes a hub rotated about an up-down axis and inclined blades disposed circumferentially on a hub's outer circumferential surface. The outer circumferential surface includes a first surface including a portion axially overlapping the blade above its joined portion to the blade, a second surface including a portion axially overlapping the blade below the joined portion, and a connecting portion connecting a rotating-direction rear end of the first outer circumferential surface and a rotating-direction front end of the second outer circumferential surface. The connecting portion is arranged forward of a rotating-direction blade front edge. A distance from the axis to a first point, positioned at the rotating-direction rear end of the first outer circumferential surface, is not shorter than that from the axis to a second point, positioned at the rotating-direction front end of the second outer circumferential surface and at the same axial position as the first point.Type: ApplicationFiled: July 25, 2017Publication date: February 1, 2018Inventors: Hidenobu TAKESHITA, Yasuyuki KAJI, Guiling ZHANG
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Publication number: 20170342991Abstract: A fan motor includes a motor including a stationary portion and a rotating portion arranged to rotate about a rotation axis extending in a vertical direction; an impeller including a plurality of blades, and arranged to rotate together with the rotating portion; a housing arranged to house the motor and the impeller therein; and a plurality of lead wires each of which is connected to the motor and is arranged to extend radially outward.Type: ApplicationFiled: May 23, 2017Publication date: November 30, 2017Inventors: Guiling ZHANG, Hidenobu TAKESHITA
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Publication number: 20170321707Abstract: A fan motor includes an electric motor including a stationary unit and a rotary unit, an impeller including blades and rotating together with the rotary unit, a housing accommodating the electric motor and the impeller, lead wires connected to the electric motor and extending radially outward, and a guide member. The housing includes a tubular portion extending along a rotation axis and accommodating at least a part of the impeller, a flange portion protruding radially outward from at least a part of the tubular portion, a lead wire outlet port provided in at least a part of the tubular portion, and a vertical groove communicating with the lead wire outlet port and penetrating the flange portion in an axial direction. The guide member is disposed inside the vertical groove, and at least a part of the lead wires is accommodated radially inward of the guide member in the vertical groove.Type: ApplicationFiled: April 27, 2017Publication date: November 9, 2017Inventors: Hidenobu TAKESHITA, Yasuyuki KAJI, Tatsuki YOSHIDA
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Patent number: 9551346Abstract: A fan includes a first motor portion, a first impeller fixed to a first rotating portion of the first motor portion, a second motor portion arranged along a central axis of the first motor portion, a second impeller fixed to a second rotating portion of the second motor portion, a tubular wind channel portion arranged to surround the first and second impellers, and support ribs arranged to join the wind channel portion to the first and second motor portions. The first impeller includes first blades arranged in a circumferential direction about the central axis and the second impeller includes second blades arranged in the circumferential direction, a rotation direction of the second impeller is opposite to a rotation direction of the first impeller. A surface of each first blade which faces the second impeller is concave. A surface of each second blade which faces the first impeller is concave.Type: GrantFiled: April 11, 2014Date of Patent: January 24, 2017Assignee: Nidec CorporationInventors: Jumpei Kitamura, Hidenobu Takeshita, Tomotsugu Sugiyama