Patents by Inventor Teppei TSUDA
Teppei TSUDA 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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Publication number: 20230412018Abstract: A laminated core of this rotor core includes one side magnet hole provided on one side in a circumferential direction with respect to a d-axis, an other side magnet hole provided on the other side, an intermediate magnet hole, a first outer bridge portion, a second outer bridge portion, a first inner bridge portion, and a second inner bridge portion.Type: ApplicationFiled: December 21, 2021Publication date: December 21, 2023Applicants: AISIN CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Naoto SAITO, Ami IIJIMA, Teppei TSUDA, Toshinori OKOCHI
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Publication number: 20230378838Abstract: A slot-housed portion disposed on a radially inner side includes a first conductor portion and a second conductor portion having a higher electrical resistance per unit length than the first conductor portion, and has a higher electrical resistance per unit length than a slot-housed portion disposed on a radially outer side.Type: ApplicationFiled: November 10, 2021Publication date: November 23, 2023Applicant: AISIN CORPORATIONInventors: Subrata SAHA, Kiyotaka KOGA, Takashi MOMIKI, Tokihito NAGAE, Masaki OTOMORI, Teppei TSUDA
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Publication number: 20230198324Abstract: The rotor includes: rotor core provided with first magnet hole on an outer side in radial direction and second magnet hole on inner side wherein radial direction for each of the magnetic poles; and plurality of permanent magnets provided in first and second magnet holes and forming magnetic poles. Rotor core includes first section provided radially outside of first magnet hole, second section extending between first and second magnet holes and having opposite ends in circumferential direction that extend to outer peripheral surface of rotor core, third section extending radially inside of second magnet hole and having opposite ends in circumferential direction that extend to outer peripheral surface of rotor core, a first bridge portion that connects second and first sections form part of outer peripheral surface of rotor core, and second bridge portion that connects third and second sections and forms part of outer peripheral surface of rotor core.Type: ApplicationFiled: January 14, 2021Publication date: June 22, 2023Applicant: AISIN CORPORATIONInventors: Naoto SAITO, Ami IIJIMA, Teppei TSUDA
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Patent number: 11496026Abstract: This stator manufacturing method includes a step in which one of a skew-forming mechanism portion and a skew-forming jig presses, with the skew-forming jig, the skew-forming mechanism portion having a shape corresponding to the shape of a skew, to form a skew having a bent shape or a curved shape.Type: GrantFiled: January 7, 2019Date of Patent: November 8, 2022Assignees: AISIN CORPORATION, AISIN SEIKI KABUSHIKI KAISHAInventors: Teppei Tsuda, Masafumi Sakuma
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Patent number: 11424651Abstract: A rotor that includes a shaft; a rotor core that is attached to the shaft and that is configured of a plurality of electric steel plates that are stacked; and a permanent magnet that is embedded in the rotor core, wherein: a coolant supply port that supplies a coolant to the rotor core is provided in the shaft, and at least two electric steel plates of the plurality of electric steel plates each include a first portion that has a first thickness in a rotational axis direction and a second portion that has a second thickness in the rotational axis direction, which is thinner than the first portion, the second portion extending in a radial direction and configuring a flow path through which the coolant supplied from the coolant supply port of the shaft flows.Type: GrantFiled: September 3, 2018Date of Patent: August 23, 2022Assignees: AISIN CORPORATION, AISIN SEIKI KABUSHIKI KAISHAInventors: Masayuki Ikemoto, Takefumi Komaki, Tsuyoshi Miyaji, Takamasa Takeuchi, Teppei Tsuda
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Patent number: 11316390Abstract: A transverse flux machine includes a stator assembly consisting of a plurality of shaped cores, each having a base with a plurality of legs with a corresponding gap between each leg and each leg having a winding. A rotor assembly is positioned adjacent the stator assembly and includes a rotor disc, and a rotor ring with a plurality of rotor poles interleaved with a plurality of interpoles. The plurality of rotor poles and plurality of interpoles are radially disposed around the rotor disc. The plurality of rotor poles include a plurality of focused rotor poles interleaved with a plurality of diffused rotor poles.Type: GrantFiled: February 4, 2020Date of Patent: April 26, 2022Assignee: The University of AkronInventors: Yilmaz Sozer, Anik Chowdhury, Shuvajit Das, Naoto Saito, Subrata Saha, Takamasa Takeuchi, Yasunobu Shiotsuki, Teppei Tsuda
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Patent number: 11264878Abstract: A rotor for a rotary electric machine, wherein: magnet insertion holes are formed, each defined by the plurality of through holes communicating with each other in the axial direction across the plurality of magnetic sheets; and each of the permanent magnets is twisted about the center axis so as to be placed into a corresponding one of the magnet insertion holes, each having opposite ends in the axial direction that are shifted from each other by an angle corresponding to the constant angle, from outside in the axial direction.Type: GrantFiled: November 22, 2017Date of Patent: March 1, 2022Assignees: AISIN CORPORATION, AISIN SEIKI KABUSHIKI KAISHAInventors: Masayuki Ikemoto, Teppei Tsuda, Masafumi Sakuma
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Publication number: 20210249920Abstract: A rotating electrical machine rotor core is implemented that can suppress an increase in number of manufacturing processes and has a magnetic structure that can reduce noise or vibration associated with rotation. A rotating electrical machine rotor core includes a member disposition hole in which a permanent magnet is disposed; and pair of magnetic flux limiting holes disposed on both sides in circumferential direction of each of magnetic poles, units in which member disposition hole is repeatedly made in circumferential direction being magnetic poles. Each magnetic plate includes plurality of types of through part pairs having different circumferential spacings between pair of limiting-hole through parts that makes pair of magnetic flux limiting holes.Type: ApplicationFiled: October 31, 2019Publication date: August 12, 2021Applicants: AISIN AW CO., LTD., AISIN SEIKI KABUSHIKI KAISHAInventors: Takayuki SUGIURA, Tokihito NAGAE, Jumpei TADA, Teppei TSUDA
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Publication number: 20210167674Abstract: This stator manufacturing method includes a step in which one of a skew-forming mechanism portion and a skew-forming jig presses, with the skew-forming jig, the skew-forming mechanism portion having a shape corresponding to the shape of a skew, to form a skew having a bent shape or a curved shape.Type: ApplicationFiled: January 7, 2019Publication date: June 3, 2021Applicants: AISIN AW CO., LTD., AISIN SEIKI KABUSHIKI KAISHAInventors: Teppei TSUDA, Masafumi SAKUMA
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Publication number: 20210075276Abstract: A transverse flux machine includes a stator assembly consisting of a plurality of shaped cores, each having a base with a plurality of legs with a corresponding gap between each leg and each leg having a winding. A rotor assembly is positioned adjacent the stator assembly and includes a rotor disc, and a rotor ring with a plurality of rotor poles interleaved with a plurality of interpoles. The plurality of rotor poles and plurality of interpoles are radially disposed around the rotor disc. The plurality of rotor poles include a plurality of focused rotor poles interleaved with a plurality of diffused rotor poles.Type: ApplicationFiled: February 4, 2020Publication date: March 11, 2021Inventors: Yilmaz SOZER, Anik CHOWDHURY, Shuvajit DAS, Naoto SAITO, Subrata SAHA, Takamasa TAKEUCHI, Yasunobu SHIOTSUKI, Teppei TSUDA
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Patent number: 10910898Abstract: A rotating electric machine having a fraction slot configuration in which the number of slots per pole per phase is not an integer includes: a stator that includes a stator core provided with a plurality of slots, and a stator winding having a plurality of coil sides accommodated in the plurality of slots and a plurality of coil ends connecting the same side end parts of the plurality of coil sides to each other; and a movable element that is supported to be movable with respect to the stator, and includes a movable element core, and a plurality of movable element magnetic poles provided in the movable element core. The stator winding includes a plurality of basic coils in which the magnitude of magnetomotive force generated by the plurality of coil sides forming the one-phase band is uniform in each of the plurality of movable element magnetic poles.Type: GrantFiled: June 8, 2018Date of Patent: February 2, 2021Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Masafumi Sakuma, Teppei Tsuda
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Patent number: 10749387Abstract: A rotary electric apparatus having a fractional slot configuration in which a number of slots per every pole and per every phase is not an integer includes: a stator which includes a stator core formed with a plurality of slots, and a stator winding having a plurality of coil sides accommodated in the plurality of slots and a plurality of coil ends connecting each of same side end portions of the plurality of coil sides; and a mover which is movably supported with respect to the stator, and includes a mover core and a plurality of mover magnetic poles installed in the mover core.Type: GrantFiled: October 11, 2018Date of Patent: August 18, 2020Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Masafumi Sakuma, Teppei Tsuda
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Publication number: 20200259380Abstract: A rotor that includes a shaft; a rotor core that is attached to the shaft and that is configured of a plurality of electric steel plates that are stacked; and a permanent magnet that is embedded in the rotor core, wherein: a coolant supply port that supplies a coolant to the rotor core is provided in the shaft, and at least two electric steel plates of the plurality of electric steel plates each include a first portion that has a first thickness in a rotational axis direction and a second portion that has a second thickness in the rotational axis direction, which is thinner than the first portion, the second portion extending in a radial direction and configuring a flow path through which the coolant supplied from the coolant supply port of the shaft flows.Type: ApplicationFiled: September 3, 2018Publication date: August 13, 2020Applicants: AISIN AW CO., LTD., AISIN SEIKI KABUSHIKI KAISHAInventors: Masayuki IKEMOTO, Takefumi KOMAKI, Tsuyoshi MIYAJI, Takamasa TAKEUCHI, Teppei TSUDA
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Publication number: 20200028397Abstract: A rotating electrical machine includes a stator including a plurality of slots on which conductive wire is wound, and a rotor facing the stator and including a plurality of magnetic poles, wherein the rotating electrical machine is configured of fractional slot in which a denominator of an irreducible fraction obtained by dividing a number of the slots of the stator by a number of phases and a number of the magnetic poles of the rotor is equal to or greater than four, and ratio of magnitude of magnetomotive force of each phase is even in respective poles of the magnetic poles of the rotor.Type: ApplicationFiled: May 22, 2019Publication date: January 23, 2020Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Masafumi SAKUMA, Teppei TSUDA
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Publication number: 20190379247Abstract: A rotary electric machine that includes a rotor; and a permanent magnet, wherein: in an axially orthogonal section orthogonal to a rotational axis of the rotor in an attached state in which the permanent magnet is attached to the rotor, the permanent magnet has an uneven shape, in which both of two magnetic pole surfaces are repeatedly projected and recessed with a curvature that is larger than an average curvature of magnetic pole surfaces.Type: ApplicationFiled: November 30, 2017Publication date: December 12, 2019Applicants: AISIN AW CO., LTD., AISIN SEIKI KABUSHIKI KAISHAInventors: Masayuki IKEMOTO, Tsuyoshi MIYAJI, Teppei TSUDA
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Publication number: 20190267855Abstract: A rotary electric machine in which a moving direction of the mover relative to the stator as a first direction, an opposing direction in which the stator and the mover oppose to each other as a second direction and a direction perpendicular to any direction of the first direction and the second direction as a third direction are defined and one of the stator and the mover includes a first reference portion which is a reference to skew and a continuous skew portion arranged in the third direction by being gradually shifted in the first direction relative to the first reference portion. The maximum value of a skew amount of the continuous skew portion relative to the first reference portion is set to have the maximum value of the relative skew amount between the stator and the mover to be one slot pitch worth of the plurality of slots.Type: ApplicationFiled: September 6, 2017Publication date: August 29, 2019Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Masafumi Sakuma, Teppei Tsuda
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Publication number: 20190260277Abstract: A rotor for a rotary electric machine, wherein: magnet insertion holes are formed, each defined by the plurality of through holes communicating with each other in the axial direction across the plurality of magnetic sheets; and each of the permanent magnets is twisted about the center axis so as to be placed into a corresponding one of the magnet insertion holes, each having opposite ends in the axial direction that are shifted from each other by an angle corresponding to the constant angle, from outside in the axial direction.Type: ApplicationFiled: November 22, 2017Publication date: August 22, 2019Applicants: AISIN AW CO., LTD., AISIN SEIKI KABUSHIKI KAISHAInventors: Masayuki IKEMOTO, Teppei TSUDA, Masafumi SAKUMA
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Patent number: 10361599Abstract: A three-phase rotating electrical machine includes a stator including a stator core provided with a plurality of teeth and a plurality of slots, and winding, the three-phase rotating electrical machine including a rotor including a rotor core and a north magnetic pole and a south magnetic pole, the three-phase rotating electrical machine including a fractional slot configuration, the rotor core including a north magnetic pole acting portion, a south magnetic pole acting portion, a magnetic pole boundary dividing the north magnetic pole acting portion and the south magnetic pole acting portion in the circumferential direction, and a magnetic resistance portion, the magnetic resistance portion restricting the magnetic flux from passing through.Type: GrantFiled: September 29, 2016Date of Patent: July 23, 2019Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Teppei Tsuda, Masafumi Sakuma
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Publication number: 20190115795Abstract: A rotary electric apparatus having a fractional slot configuration in which a number of slots per every pole and per every phase is not an integer includes: a stator which includes a stator core formed with a plurality of slots, and a stator winding having a plurality of coil sides accommodated in the plurality of slots and a plurality of coil ends connecting each of same side end portions of the plurality of coil sides; and a mover which is movably supported with respect to the stator, and includes a mover core and a plurality of mover magnetic poles installed in the mover core.Type: ApplicationFiled: October 11, 2018Publication date: April 18, 2019Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Masafumi Sakuma, Teppei Tsuda
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Publication number: 20180358857Abstract: A rotating electric machine having a fraction slot configuration in which the number of slots per pole per phase is not an integer includes: a stator that includes a stator core provided with a plurality of slots, and a stator winding having a plurality of coil sides accommodated in the plurality of slots and a plurality of coil ends connecting the same side end parts of the plurality of coil sides to each other; and a movable element that is supported to be movable with respect to the stator, and includes a movable element core, and a plurality of movable element magnetic poles provided in the movable element core. The stator winding includes a plurality of basic coils in which the magnitude of magnetomotive force generated by the plurality of coil sides forming the one-phase band is uniform in each of the plurality of movable element magnetic poles.Type: ApplicationFiled: June 8, 2018Publication date: December 13, 2018Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Masafumi SAKUMA, Teppei TSUDA