Patents by Inventor Yoshihiko Onishi
Yoshihiko Onishi 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: 11970220Abstract: There is provided an electric power steering apparatus in which a motor housing that contains motor constituent members and has a waterproofing function and a control unit case that contains control apparatus constituent members and has a waterproofing function are provided, in which an output axle of a motor extends to the outside of the motor housing while maintaining the waterproofing function, and in which a respiratory apparatus that performs a respiratory action, based on an inner pressure change, is provided in the motor housing.Type: GrantFiled: May 22, 2018Date of Patent: April 30, 2024Assignee: Mitsubishi Electric CorporationInventors: Yoshihiko Onishi, Yoshihito Asao
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Publication number: 20240117393Abstract: A method for producing an L-amino acid such as L-glutamic acid is provided. An L-amino acid is produced by culturing in a culture medium a bacterium belonging to the family Enterobacteriaceae and having an L-amino acid-producing ability, and collecting the L-amino acid from the culture medium and/or cells of the bacterium, wherein the bacterium has been modified to have one or more of the following modifications: (A) modification of reducing the activity of a BudA protein; (B) modification of reducing the activity of a BudB protein; (C) modification of reducing the activity of a BudC protein; (D) modification of reducing the activity of a PAJ_3461 protein; (E) modification of reducing the activity of a PAJ_3462 protein; and (F) modification of reducing the activity of a PAJ_3463 protein.Type: ApplicationFiled: September 26, 2023Publication date: April 11, 2024Applicant: AJINOMOTO CO., INC.Inventors: Chie HAMANO, Yoshihiro ITO, Naoki EBARA, Kota INOUE, Yukiko ONO, Rihito ISHIDA, Fumito ONISHI, Yoshihiko HARA
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Patent number: 11952054Abstract: There is provided an electric power steering apparatus in which at least one of a motor housing and a control unit has a respiratory apparatus that performs a respiratory action, based on an inner pressure change in at least one of the motor housing and the control unit.Type: GrantFiled: May 22, 2018Date of Patent: April 9, 2024Assignee: Mitsubishi Electric CorporationInventors: Yoshihito Asao, Yoshihiko Onishi, Toyoaki Udo
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Publication number: 20240063685Abstract: A circuit connection apparatus has a connector including a housing in which a connection terminal is contained, a positioning guide portion provided therein at an opposite side to an opening portion of the housing, and a press-fit terminal extended from the connection terminal. Moreover, the circuit connection apparatus has a heat sink that includes a guide receipt portion fitted with the positioning guide portion—and an opening to be penetrated by the press-fit terminal and to which the housing is fixed. Furthermore, the circuit connection apparatus has a circuit board that includes a board positioning guide portion and a through-hole to which the press-fit terminal is pressure-bonded and that is fixed to the heat sink. Because the press-fit terminal and the through-hole can accurately be positioned, it is made possible that the reliability is raised and a simple assembly process suppresses the production cost from rising.Type: ApplicationFiled: February 24, 2021Publication date: February 22, 2024Applicant: Mitsubishi Electric CorporationInventors: Junya SUZUKI, Hideya NISHIKAWA, Yoshihiko ONISHI, Isao SONODA, Takayuki NAKAO
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Publication number: 20240006963Abstract: A rotating electrical machine that includes a heat dissipating structure of a heat generating portion of a control board includes the control board that includes a heating element on top of a main surface, a heat sink disposed so as to oppose the main surface, and includes a recess that accommodates the heating element on an opposite surface that oppose the main surface, and a heat dissipating material formed in a gap between the heating element and the recess.Type: ApplicationFiled: April 26, 2021Publication date: January 4, 2024Applicant: Mitsubishi Electric CorporationInventors: Yoshihiko ONISHI, Isao SONODA
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Patent number: 11840290Abstract: In an electric power steering device in which a control unit and a motor are integrated, when the control unit is housed in a case, although a frame, by which the motor and the control unit are compartmentalized, is required, there have been problems in that the case is deformed by a pressure which influences the case when the frame is provided, and a position accuracy of a shaft center of a rotation shaft of the motor is worsened. Therefore, in order to reduce a deformation of the case, a step portion is provided at an inner wall surface of the case and the frame is contacted to the step portion, and moreover, a connecting portion is provided between an outer circumference portion of the frame and an inner circumference portion of the case, whereby a movement of the frame is restrained.Type: GrantFiled: April 4, 2017Date of Patent: December 12, 2023Assignee: Mitsubishi Electric CorporationInventors: Yoshihiko Onishi, Toyoaki Udo
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Publication number: 20230034461Abstract: A rotary electric machine in which a capacitor does not explode even if heat is generated in the capacitor, is provided. A heat sink includes a recess-shaped capacitor housing portion having an inner peripheral side surface joined to an outer peripheral side surface of a capacitor via a capacitor heat dissipation material, and the capacitor housing portion includes an explosion-proof valve recess located at a position facing an explosion-proof valve of the capacitor, and a communication passage providing communication between a drive circuit board and the explosion-proof valve.Type: ApplicationFiled: April 16, 2020Publication date: February 2, 2023Applicant: Mitsubishi Electric CorporationInventors: Yoshihiko ONISHI, Isao SONODA
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Patent number: 11139715Abstract: A rotary electric machine includes: a floored cylindrical case in which an opening at a first end of a cylindrical portion is closed by a floor portion; a stator that includes: an annular stator core that is held inside the case by being fitted together with and fixed to the cylindrical portion; and coils that are mounted to the stator core; a frame that closes an opening at a second end of the cylindrical portion; and a rotor that is fixed to a rotating shaft, and that is disposed on an inner circumferential side of the stator, wherein: a first stress relieving indented portion is formed around an entire circumference at a first end of an inner circumferential surface of the cylindrical portion such that a gap is formed between a first end portion of an outer circumferential surface of the stator core and the cylindrical portion.Type: GrantFiled: November 2, 2016Date of Patent: October 5, 2021Assignee: Mitsubishi Electric CorporationInventors: Yoshihiko Onishi, Tetsuya Iwata, Koji Tamura
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Publication number: 20210237794Abstract: There is provided an electric power steering apparatus in which a motor housing that contains motor constituent members and has a waterproofing function and a control unit case that contains control apparatus constituent members and has a waterproofing function are provided, in which an output axle of a motor extends to the outside of the motor housing while maintaining the waterproofing function, and in which a respiratory apparatus that performs a respiratory action, based on an inner pressure change, is provided in the motor housing.Type: ApplicationFiled: May 22, 2018Publication date: August 5, 2021Applicant: Mitsubishi Electric CorporationInventors: Yoshihiko ONISHI, Yoshihito ASAO
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Publication number: 20210107558Abstract: In an electric power steering device in which a control unit and a motor are integrated, when the control unit is housed in a case, although a frame, by which the motor and the control unit are compartmentalized, is required, there have been problems in that the case is deformed by a pressure which influences the case when the frame is provided, and a position accuracy of a shaft center of a rotation shaft of the motor is worsened. Therefore, in order to reduce a deformation of the case, a step portion is provided at an inner wall surface of the case and the frame is contacted to the step portion, and moreover, a connecting portion is provided between an outer circumference portion of the frame and an inner circumference portion of the case, whereby a movement of the frame is restrained.Type: ApplicationFiled: April 4, 2017Publication date: April 15, 2021Applicant: Mitsubishi Electric CorporationInventors: Yoshihiko ONISHI, Toyoaki UDO
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Publication number: 20210001918Abstract: There is provided an electric power steering apparatus in which at least one of a motor housing and a control unit has a respiratory apparatus that performs a respiratory action, based on an inner pressure change in at least one of the motor housing and the control unit.Type: ApplicationFiled: May 22, 2018Publication date: January 7, 2021Applicant: Mitsubishi Electric CorporationInventors: Yoshihito ASAO, Yoshihiko ONISHI, Toyoaki UDO
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Publication number: 20190252941Abstract: A rotary electric machine includes: a floored cylindrical case in which an opening at a first end of a cylindrical portion is closed by a floor portion; a stator that includes: an annular stator core that is held inside the case by being fitted together with and fixed to the cylindrical portion; and coils that are mounted to the stator core; a frame that closes an opening at a second end of the cylindrical portion; and a rotor that is fixed to a rotating shaft, and that is disposed on an inner circumferential side of the stator, wherein: a first stress relieving indented portion is formed around an entire circumference at a first end of an inner circumferential surface of the cylindrical portion such that a gap is formed between a first end portion of an outer circumferential surface of the stator core and the cylindrical portion.Type: ApplicationFiled: November 2, 2016Publication date: August 15, 2019Applicant: Mitsubishi Electric CorporationInventors: Yoshihiko ONISHI, Tetsuya IWATA, Koji TAMURA
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Patent number: 10367397Abstract: A controller-integrated rotary electric machine in which a controller is coupled to a rotary electric machine main unit using a simple coupling structure while ensuring endurance of the coupling is provided. The controller-integrated rotary electric machine includes: a first housing that houses a controller or a rotary electric machine main unit driven according to a command from the controller and that includes a thin-walled portion at an edge on an outer periphery side; and a second housing that is coaxially aligned with the first housing and has a groove in which an abutting face having a linearly inclined cross-sectional shape is formed from the outer periphery side toward a radial direction, wherein the first housing is joined to the second housing by folding the thin-walled portion of the first housing along the abutting face of the second housing and performing swaging.Type: GrantFiled: May 12, 2014Date of Patent: July 30, 2019Assignee: Mitsubishi Electric CorporationInventors: Yoshihiko Onishi, Yoshihito Asao
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Patent number: 10075037Abstract: An electric motor includes a cylindrical holder mounted to an end of a rotation shaft, a sensor magnet mounted to the holder, and a rotation sensor mounted at a position at which the rotation sensor opposes the sensor magnet in a direction of an axis of rotation and detecting a rotating field of the sensor magnet. The end of the rotation shaft has a cylindrical shape with a non-circular cross section formed of at least one plane and a curved surface in an outer peripheral portion. At least one of an inner peripheral portion and an outer peripheral portion of the holder forms a non-circular cross section formed of a plane parallel to the axis of rotation and a curved surface connected to the plane. The plane of the rotation shaft and the plane of the holder are parallel to each other and the curved surface of the rotation shaft and the curved surface of the holder are in contact with each other.Type: GrantFiled: March 19, 2014Date of Patent: September 11, 2018Assignee: Mitsubishi Electric CorporationInventors: Takanori Ichikawa, Satoru Akutsu, Yoshihiko Onishi, Yuji Takizawa
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Patent number: 9525314Abstract: In the rotary electric machine, a cylinder 04a of a ring component 04 is formed in such a way that a fitting outer surface 04c1 of the cylinder 04a of the ring component 04 is fitted to a fitting inner surface 02a of a first housing 02; a clearance value between the fitting outer surface of the cylinder and a fitting inner surface of the first housing is lower than a clearance value between an outer surface, in which the fitting outer surface is excepted, of the cylinder and an inner surface, in which the fitting inner surface is excepted, of the first housing; and a position in a diameter direction of a stator core 3 facing to the first housing is set by above-described fitting process.Type: GrantFiled: May 3, 2013Date of Patent: December 20, 2016Assignee: Mitsubishi Electric CorporationInventors: Soichi Sato, Yoshihiko Onishi, Katsunari Takagi, Keisuke Shimomura, Manabu Yoshinori
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Publication number: 20160329781Abstract: A controller-integrated rotary electric machine in which a controller is coupled to a rotary electric machine main unit using a simple coupling structure while ensuring endurance of the coupling is provided. The controller-integrated rotary electric machine includes: a first housing that houses a controller or a rotary electric machine main unit driven according to a command from the controller and that includes a thin-walled portion at an edge on an outer periphery side; and a second housing that is coaxially aligned with the first housing and has a groove in which an abutting face having a linearly inclined cross-sectional shape is formed from the outer periphery side toward a radial direction, wherein the first housing is joined to the second housing by folding the thin-walled portion of the first housing along the abutting face of the second housing and performing swaging.Type: ApplicationFiled: May 12, 2014Publication date: November 10, 2016Applicant: Mitsubishi Electric CorporationInventors: Yoshihiko ONISHI, Yoshihito ASAO
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Publication number: 20160285331Abstract: An electric motor includes a cylindrical holder mounted to an end of a rotation shaft, a sensor magnet mounted to the holder, and a rotation sensor mounted at a position at which the rotation sensor opposes the sensor magnet in a direction of an axis of rotation and detecting a rotating field of the sensor magnet. The end of the rotation shaft has a cylindrical shape with a non-circular cross section formed of at least one plane and a curved surface in an outer peripheral portion. At least one of an inner peripheral portion and an outer peripheral portion of the holder forms a non-circular cross section formed of a plane parallel to the axis of rotation and a curved surface connected to the plane. The plane of the rotation shaft and the plane of the holder are parallel to each other and the curved surface of the rotation shaft and the curved surface of the holder are in contact with each other.Type: ApplicationFiled: March 19, 2014Publication date: September 29, 2016Applicant: Mitsubishi Electric CorporationInventors: Takanori ICHIKAWA, Satoru AKUTSU, Yoshihiko ONISHI, Yuji TAKIZAWA
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Patent number: 9444293Abstract: In a rotary electric machine, a cylindrical stator core holding frame is cantilevered on a housing. A cylindrical stator core is fitted together and held inside the stator core holding frame. The stator core holding frame includes: a flange portion that is fixed to the housing; and a frame cylindrical portion that is coupled to the flange portion, and that holds the stator core. A thickness of the flange portion is greater than a thickness of the frame cylindrical portion.Type: GrantFiled: July 5, 2013Date of Patent: September 13, 2016Assignee: Mitsubishi Electric CorporationInventors: Manabu Yoshinori, Soichi Sato, Yoshihiko Onishi, Katsunari Takagi, Keisuke Shimomura
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Publication number: 20140239754Abstract: In a rotary electric machine, a cylindrical stator core holding frame is cantilevered on a housing. A cylindrical stator core is fitted together and held inside the stator core holding frame. The stator core holding frame includes: a flange portion that is fixed to the housing; and a frame cylindrical portion that is coupled to the flange portion, and that holds the stator core. A thickness of the flange portion is greater than a thickness of the frame cylindrical portion.Type: ApplicationFiled: July 5, 2013Publication date: August 28, 2014Inventors: Manabu YOSHINORI, Soichi SATO, Yoshihiko ONISHI, Katsunari TAKAGI, Keisuke SHIMOMURA
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Publication number: 20140197705Abstract: In the rotary electric machine, a cylinder 04a of a ring component 04 is formed in such a way that a fitting outer surface 04c1 of the cylinder 04a of the ring component 04 is fitted to a fitting inner surface 02a of a first housing 02; a clearance value between the fitting outer surface of the cylinder and a fitting inner surface of the first housing is lower than a clearance value between an outer surface, in which the fitting outer surface is excepted, of the cylinder and an inner surface, in which the fitting inner surface is excepted, of the first housing; and a position in a diameter direction of a stator core 3 facing to the first housing is set by above-described fitting process.Type: ApplicationFiled: May 3, 2013Publication date: July 17, 2014Applicant: Mitsubishi Electric CorporationInventors: Soichi SATO, Yoshihiko ONISHI, Katsunari TAKAGI, Keisuke SHIMOMURA, Manabu YOSHINORI