Patents by Inventor Kohsuke MURATA
Kohsuke MURATA 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: 20230188016Abstract: A drone motor includes a housing, a punching plate, a rotor, and a stator. The housing includes a top plate provided with an opening. The punching plate is attached to the top plate so as to cover the opening. The rotor is rotatably disposed inside the housing. The stator is non-rotatably disposed inside the housing.Type: ApplicationFiled: November 10, 2022Publication date: June 15, 2023Inventors: Takashi IMOTO, Kohsuke MURATA, Yoshifumi SHIMOGAKI
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Publication number: 20220368179Abstract: A motor includes a housing, a stator, and a printed wiring board. The housing includes a bottom part. The stator is supported by the housing. The printed wiring board is supported by the housing in a state of being disposed apart from the bottom part.Type: ApplicationFiled: April 11, 2022Publication date: November 17, 2022Inventors: Koki OHNO, Kohsuke MURATA, Yoshifumi SHIMOGAKI
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Patent number: 11447004Abstract: An in-wheel motor vehicle drive device includes an electric motor driving a drive gear, and the drive gear provided with a gear portion configured to receive drive force of the drive gear and a first wall surface extending along a direction orthogonal to an extending direction of a rotation center axis of the gear portion, the first wall surface for forming a pump chamber. The in-wheel motor vehicle drive device further includes a hub configured to transmit the drive force to the wheel, and an oil pump driven by the electric motor. The oil pump includes an oil pump cover including a second wall surface facing the first wall surface of the pump chamber, and a pump rotator arranged at a space between the first wall surface of the driven gear and the second wall surface of the oil pump cover, the pump rotator integrally rotating with the driven gear.Type: GrantFiled: June 19, 2020Date of Patent: September 20, 2022Assignee: AISIN CORPORATIONInventors: Takahiro Misu, Kohsuke Murata
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Publication number: 20210305926Abstract: A rotational electric machine includes: a stator configured to generate a rotating magnetic field by an alternating current converted from a power supply voltage of a battery; a rotor configured to rotate by the rotating magnetic field; a field coil configured to excite the rotor by a direct current converted from a power supply voltage of the battery; an acquisition unit configured to acquire the power supply voltage and an induced voltage of the rotational electric machine; and a power generation control unit configured to perform regenerative power generation when the induced voltage acquired is lower than a preset voltage equal to or lower than the power supply voltage acquired, and to perform alternator power generation by the induced voltage when the induced voltage acquired is equal to or higher than the preset voltage.Type: ApplicationFiled: March 2, 2021Publication date: September 30, 2021Inventors: Kohsuke MURATA, Kenji KITADA
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Patent number: 11124056Abstract: A vehicle drive apparatus includes a fluid coupling connected to an engine, and a rotating electric machine connected to the engine via the fluid coupling. The fluid coupling has an impeller to which torque having been output from the engine is input, and a turbine facing the impeller. The impeller rotates about a rotation axis. Torque having been output from the impeller is input to the turbine via a fluid. The turbine rotates about the rotation axis. The vehicle drive apparatus has a path provided between an output shaft of the engine and the impeller, the path through which torque having been output from the engine is transmitted to the impeller not via the turbine, and paths through which torque having been input to the impeller is output via the rotating electric machine, passing through a radially outside relative to the impeller with respect to the rotation axis from the impeller via the turbine.Type: GrantFiled: September 8, 2020Date of Patent: September 21, 2021Assignee: EXEDY CORPORATIONInventors: Yuuki Kawahara, Kenji Kitada, Taichi Kitamura, Kohsuke Murata
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Patent number: 10985638Abstract: A rotary electrical machine includes a stator, a field core, a rotor, and first and second air gaps. The stator includes an AC coil that generates a rotating magnetic field with an alternating current. The field core includes a field coil excited by a direct current. The rotor is disposed on an outer circumference of a starting apparatus and held rotatably about a rotational axis relative to the stator and the field coil. The first air gap is formed between the stator and the rotor, and allows a magnetic flux to flow therebetween. The second air gap is formed between the field core and the rotor, and allows a magnetic flux to flow therebetween. The second air gap defines an interval extending along a direction that intersects an axial direction of the rotational axis on one end surface of the rotor in the axial direction of the rotational axis.Type: GrantFiled: January 26, 2018Date of Patent: April 20, 2021Assignee: EXEDY CORPORATIONInventors: Hitoshi Katsura, Kohsuke Murata, Taichi Kitamura
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Publication number: 20210070161Abstract: A vehicle drive apparatus includes a fluid coupling connected to an engine, and a rotating electric machine connected to the engine via the fluid coupling. The fluid coupling has an impeller to which torque having been output from the engine is input, and a turbine facing the impeller. The impeller rotates about a rotation axis. Torque having been output from the impeller is input to the turbine via a fluid. The turbine rotates about the rotation axis. The vehicle drive apparatus has a path provided between an output shaft of the engine and the impeller, the path through which torque having been output from the engine is transmitted to the impeller not via the turbine, and paths through which torque having been input to the impeller is output via the rotating electric machine, passing through a radially outside relative to the impeller with respect to the rotation axis from the impeller via the turbine.Type: ApplicationFiled: September 8, 2020Publication date: March 11, 2021Inventors: Yuuki KAWAHARA, Kenji KITADA, Taichi KITAMURA, Kohsuke MURATA
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Publication number: 20210001711Abstract: An in-wheel motor vehicle drive device includes an electric motor driving a drive gear, and the drive gear provided with a gear portion configured to receive drive force of the drive gear and a first wall surface extending along a direction orthogonal to an extending direction of a rotation center axis of the gear portion, the first wall surface for forming a pump chamber. The in-wheel motor vehicle drive device further includes a hub configured to transmit the drive force to the wheel, and an oil pump driven by the electric motor. The oil pump includes an oil pump cover including a second wall surface facing the first wall surface of the pump chamber, and a pump rotator arranged at a space between the first wall surface of the driven gear and the second wall surface of the oil pump cover, the pump rotator integrally rotating with the driven gear.Type: ApplicationFiled: June 19, 2020Publication date: January 7, 2021Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Takahiro MISU, Kohsuke Murata
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Patent number: 10788110Abstract: A hybrid driving apparatus includes a forward-reverse switching mechanism, a transmission, an input path disposed on an output side of the forward-reverse switching mechanism, and a motor connected to the input path.Type: GrantFiled: October 13, 2016Date of Patent: September 29, 2020Assignee: EXEDY CORPORATIONInventors: Hitoshi Katsura, Kohsuke Murata, Taichi Kitamura
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Patent number: 10724616Abstract: A power transmission apparatus for vehicle, incorporated in a vehicle equipped with a transmission, includes a forward-reverse switching mechanism with start function produced by adding a function of a vehicle start clutch to the forward-reverse switching mechanism. Additionally, a power transmission system for vehicle includes an internal combustion engine that is a power source for vehicle driving, the transmission, a torsional vibration damper that transmits torque of the internal combustion engine to the transmission, and the forward-reverse switching mechanism with start function of the power transmission apparatus for vehicle. The forward-reverse switching mechanism with start function is disposed between the transmission, and the internal combustion engine and the torsional vibration damper.Type: GrantFiled: October 13, 2016Date of Patent: July 28, 2020Assignee: EXEDY CORPORATIONInventors: Hitoshi Katsura, Kohsuke Murata, Taichi Kitamura
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Publication number: 20200161952Abstract: A rotary electrical machine includes a stator, a field core, a rotor, and first and second air gaps. The stator includes an AC coil that generates a rotating magnetic field with an alternating current. The field core includes a field coil excited by a direct current. The rotor is disposed on an outer circumference of a starting apparatus and held rotatably about a rotational axis relative to the stator and the field coil. The first air gap is formed between the stator and the rotor, and allows a magnetic flux to flow therebetween. The second air gap is formed between the field core and the rotor, and allows a magnetic flux to flow therebetween. The second air gap defines an interval extending along a direction that intersects an axial direction of the rotational axis on one end surface of the rotor in the axial direction of the rotational axis.Type: ApplicationFiled: January 26, 2018Publication date: May 21, 2020Inventors: Hitoshi KATSURA, Kohsuke MURATA, Taichi KITAMURA
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Patent number: 10215147Abstract: A power transmission apparatus, which is disposed on a power transmission path from an output shaft of an internal combustion engine to a transmission in a vehicle, is provided with a rotating electrical machine including a rotor and a stator. The rotor is coupled to a synchronous rotating member that rotates synchronously with the output shaft of the internal combustion engine, and takes a central axis of the output shaft of the internal combustion engine as a rotating shaft. The stator is fixed to a fixing member on a non-rotating side with respect to the synchronous rotating member, and faces the rotor with a first gap therebetween.Type: GrantFiled: January 30, 2017Date of Patent: February 26, 2019Assignee: EXEDY CORPORATIONInventors: Keiji Sato, Hitoshi Katsura, Yoshihiro Matsuoka, Kohsuke Murata, Taichi Kitamura
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Publication number: 20180313439Abstract: A hybrid driving apparatus includes a forward-reverse switching mechanism, a transmission, an input path disposed on an output side of the forward-reverse switching mechanism, and a motor connected to the input path.Type: ApplicationFiled: October 13, 2016Publication date: November 1, 2018Applicant: EXEDY CORPORATIONInventors: Hitoshi KATSURA, Kohsuke MURATA, Taichi KITAMURA
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Publication number: 20180304733Abstract: A power transmission apparatus for vehicle, incorporated in a vehicle equipped with a transmission, includes a forward-reverse switching mechanism with start function produced by adding a function of a vehicle start clutch to the forward-reverse switching mechanism. Additionally, a power transmission system for vehicle includes an internal combustion engine that is a power source for vehicle driving, the transmission, a torsional vibration damper that transmits torque of the internal combustion engine to the transmission, and the forward-reverse switching mechanism with start function of the power transmission apparatus for vehicle. The forward-reverse switching mechanism with start function is disposed between the transmission, and the internal combustion engine and the torsional vibration damper.Type: ApplicationFiled: October 13, 2016Publication date: October 25, 2018Applicant: EXEDY CORPORATIONInventors: Hitoshi KATSURA, Kohsuke MURATA, Taichi KITAMURA
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Publication number: 20180304896Abstract: A driving apparatus for vehicle includes a Ravigneaux planetary gear 501, a friction clutch 502, and a friction brake 503. Input paths 516 and 515 of two systems and an output path 517 of one system are provided for the Ravigneaux planetary gear. Continuously variable adjustment of output of the one system is achievable by adjusting each input of the two systems.Type: ApplicationFiled: October 13, 2016Publication date: October 25, 2018Applicant: EXEDY CORPORATIONInventors: Hitoshi KATSURA, Kohsuke MURATA, Taichi KITAMURA
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Publication number: 20170218910Abstract: A power transmission apparatus, which is disposed on a power transmission path from an output shaft of an internal combustion engine to a transmission in a vehicle, is provided with a rotating electrical machine including a rotor and a stator. The rotor is coupled to a synchronous rotating member that rotates synchronously with the output shaft of the internal combustion engine, and takes a central axis of the output shaft of the internal combustion engine as a rotating shaft. The stator is fixed to a fixing member on a non-rotating side with respect to the synchronous rotating member, and faces the rotor with a first gap therebetween.Type: ApplicationFiled: January 30, 2017Publication date: August 3, 2017Applicant: EXEDY CORPORATIONInventors: Keiji SATO, Hitoshi KATSURA, Yoshihiro MATSUOKA, Kohsuke MURATA, Taichi KITAMURA