Patents by Inventor Takuro MIZUNO
Takuro MIZUNO 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: 9973055Abstract: An electric compressor including a compression mechanism, an electric motor driving the compression mechanism, a housing accommodating the compression mechanism and the electric motor, an inverter box located on an outer surface of the housing, an inverter substrate accommodated in the inverter box and having an inverter circuit supplying electric power to the electric motor, the inverter substrate having a first surface and a second surface that is a reverse surface of the first surface, a plurality of fastening members fixing the inverter substrate to the inverter box, and a reinforcing member having a first end fixed to the inverter box and a second end soldered to the first surface or the second surface of the inverter substrate. The reinforcing member extends toward the first surface or the second surface of the inverter substrate in the inverter box. The reinforcing member is not electrically connected to the inverter circuit.Type: GrantFiled: July 6, 2015Date of Patent: May 15, 2018Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Ken Suitou, Kazuhiro Kuroki, Takuro Mizuno, Tatsuya Koide, Yusuke Kinoshita
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Patent number: 9970428Abstract: A motor-driven compressor includes a metal housing accommodating a compression unit and an electric motor and a resin cover coupled to the housing. The cover and the housing define an accommodation chamber that accommodates a motor driving circuit that drives the electric motor. A metal shield is fixed to the cover and blocks electromagnetic noise. The shield and the cover are stacked together. A sealing member located between the shield and the cover. The sealing member is configured to block entry of foreign matter into the accommodation chamber through a gap between the shield and the cover.Type: GrantFiled: July 28, 2014Date of Patent: May 15, 2018Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yusuke Kinoshita, Ken Suitou, Kazuhiro Kuroki, Yumin Hishinuma, Junichi Takahata, Junya Yano, Takuro Mizuno
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Patent number: 9831747Abstract: A motor-driven compressor includes a metal housing accommodating a compression unit and an electric motor and a cover coupled to the housing. The cover and the housing define an accommodation chamber that accommodates a motor driving circuit that drives the electric motor. The cover includes a metal shield that blocks electromagnetic noise, a resin outer insulator that is fixed to an outer side of the shield and includes an outer circumferential portion, and a resin inner insulator that is fixed to an inner side of the shield and includes an outer circumferential portion. The shield, the outer insulator, and the inner insulator are separate from one another and stacked together. The shield is held between the outer insulator and the inner insulator. The outer circumferential portion of the outer insulator is joined to the outer circumferential portion of the inner insulator.Type: GrantFiled: August 20, 2014Date of Patent: November 28, 2017Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yusuke Kinoshita, Ken Suitou, Tatsushi Mori, Kazuhiro Kuroki, Tatsuya Koide, Junya Yano, Takuro Mizuno
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Publication number: 20170104392Abstract: The electric compressor includes a housing having electrical conductivity, an inverter, a cover having electrical conductivity, a sealing portion, and a shielding portion having electrical conductivity. The cover is attached to the housing, thereby defining an accommodating space in which the inverter is accommodated. The sealing portion has a main body portion made of resin and a metal portion having electrical conductivity. The sealing portion is provided in a gap between the housing and the cover. The shielding portion is joined to the metal portion and electrically grounded. The metal portion is provided in the accommodating space, and has an outer circumferential edge embedded in the main body portion. The shielding portion is arranged so as to face a third surface of the main body portion and so as to extend from the metal portion toward at least one of the first surface and the second surface.Type: ApplicationFiled: October 6, 2016Publication date: April 13, 2017Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takuro MIZUNO, Tatsuya KOIDE, Junya YANO, Akio FUJII, Yusuke KINOSHITA, Tetsuya YAMADA, Kenji MOMMA
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Patent number: 9523362Abstract: There is provided a vehicular electric compressor capable of discharging electric charges of a capacitor surely and quickly in the event of an impact. The vehicular electric compressor includes: a compressing unit; an electric motor for rotating the compressing unit; and a driving circuit for driving the electric motor. The driving circuit includes: a capacitor; a circuit board provided with an electrically discharging circuit for discharging electric charges accumulated in the capacitor; and a positive electrode interconnection and a negative electrode interconnection configured to electrically connect the capacitor and the circuit board to each other.Type: GrantFiled: June 5, 2015Date of Patent: December 20, 2016Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tatsuya Koide, Takuro Mizuno, Hiroshi Fukasaku
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Publication number: 20160013701Abstract: An electric compressor including a compression mechanism, an electric motor driving the compression mechanism, a housing accommodating the compression mechanism and the electric motor, an inverter box located on an outer surface of the housing, an inverter substrate accommodated in the inverter box and having an inverter circuit supplying electric power to the electric motor, the inverter substrate having a first surface and a second surface that is a reverse surface of the first surface, a plurality of fastening members fixing the inverter substrate to the inverter box, and a reinforcing member having a first end fixed to the inverter box and a second end soldered to the first surface or the second surface of the inverter substrate. The reinforcing member extends toward the first surface or the second surface of the inverter substrate in the inverter box. The reinforcing member is not electrically connected to the inverter circuit.Type: ApplicationFiled: July 6, 2015Publication date: January 14, 2016Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Ken SUITOU, Kazuhiro KUROKI, Takuro MIZUNO, Tatsuya KOIDE, Yusuke KINOSHITA
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Publication number: 20150357844Abstract: There is provided a vehicular electric compressor capable of discharging electric charges of a capacitor surely and quickly in the event of an impact. The vehicular electric compressor includes: a compressing unit; an electric motor for rotating the compressing unit; and a driving circuit for driving the electric motor. The driving circuit includes: a capacitor; a circuit board provided with an electrically discharging circuit for discharging electric charges accumulated in the capacitor; and a positive electrode interconnection and a negative electrode interconnection configured to electrically connect the capacitor and the circuit board to each other.Type: ApplicationFiled: June 5, 2015Publication date: December 10, 2015Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tatsuya KOIDE, Takuro MIZUNO, Hiroshi FUKASAKU
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Publication number: 20150061421Abstract: An electric compressor includes: a compressing unit; an electric motor that rotates the compressing unit; and a driving circuit. The driving circuit includes a filter circuit, an inverter circuit that receives electric power from the power supply line via the filter circuit, and a circuit board on which the inverter circuit is disposed, and a base member (aluminum base) and that supports the circuit board. The filter circuit has an electromagnetic coil and a damping resistor. The damping resistor is fixed to the aluminum base in abutment with the aluminum base. Preferably, the filter circuit is mounted on the circuit board, and the damping resistor has a lead line soldered to the circuit board and is fixed to the aluminum base by a screw. With this, there can be provided the electric compressor capable of effectively cooling the damping resistor of the filter circuit.Type: ApplicationFiled: September 2, 2014Publication date: March 5, 2015Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Junya YANO, Takuro MIZUNO, Ken SUITOU, Junichi TAKAHATA, Fumihiro KAGAWA, Shingo ENAMI
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Publication number: 20150054365Abstract: A motor-driven compressor includes a metal housing accommodating a compression unit and an electric motor and a cover coupled to the housing. The cover and the housing define an accommodation chamber that accommodates a motor driving circuit that drives the electric motor. The cover includes a metal shield that blocks electromagnetic noise, a resin outer insulator that is fixed to an outer side of the shield and includes an outer circumferential portion, and a resin inner insulator that is fixed to an inner side of the shield and includes an outer circumferential portion. The shield, the outer insulator, and the inner insulator are separate from one another and stacked together. The shield is held between the outer insulator and the inner insulator. The outer circumferential portion of the outer insulator is joined to the outer circumferential portion of the inner insulator.Type: ApplicationFiled: August 20, 2014Publication date: February 26, 2015Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yusuke KINOSHITA, Ken SUITOU, Tatsushi MORI, Kazuhiro KUROKI, Tatsuya KOIDE, Junya YANO, Takuro MIZUNO
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Publication number: 20150037179Abstract: A motor-driven compressor includes a metal housing accommodating a compression unit and an electric motor and a resin cover coupled to the housing. The cover and the housing define an accommodation chamber that accommodates a motor driving circuit that drives the electric motor. A metal shield is fixed to the cover and blocks electromagnetic noise. The shield and the cover are stacked together. A sealing member located between the shield and the cover. The sealing member is configured to block entry of foreign matter into the accommodation chamber through a gap between the shield and the cover.Type: ApplicationFiled: July 28, 2014Publication date: February 5, 2015Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yusuke KINOSHITA, Ken SUITOU, Kazuhiro KUROKI, Yumin HISHINUMA, Junichi TAKAHATA, Junya YANO, Takuro MIZUNO