Patents by Inventor Kento Mochizuki
Kento Mochizuki 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: 20240013964Abstract: A core includes a winding part, and a wall part including a first wall part, a second wall part spaced apart from the first wall part and disposed opposite to the first wall part, a third wall part in contact the first wall part, and a fourth wall part disposed opposite to the third wall part. The wall part surrounds the winding part.Type: ApplicationFiled: September 20, 2023Publication date: January 11, 2024Inventors: Shana YANAGIMOTO, Kento MOCHIZUKI
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Patent number: 11798724Abstract: A core includes a winding part, and a wall part including a first wall part, a second wall part spaced apart from the first wall part and disposed opposite to the first wall part, a third wall part in contact the first wall part, and a fourth wall part disposed opposite to the third wall part. The wall part surrounds the winding part.Type: GrantFiled: June 19, 2020Date of Patent: October 24, 2023Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Shana Yanagimoto, Kento Mochizuki
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Patent number: 11388844Abstract: This switching power supply device having a plurality of power supply circuits to be connected to a multi-phase power supply, is provided with: a first substrate on which an electric component constituting a filter circuit is mounted, the output end of the filter circuit being provided on one end side in a first direction; a second substrate on which a power semiconductor constituting a circuit provided at a stage later than the filter circuit is mounted, the input end of the circuit provided at the stage later than the filter circuit being provided on one end side in a second direction that intersects with the first direction; and a third substrate which is disposed between the first substrate and the second substrate, and on which a wiring pattern for electrically connecting the output end to the input end is formed.Type: GrantFiled: June 23, 2020Date of Patent: July 12, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Shintaro Tazaki, Kento Mochizuki
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Patent number: 11038415Abstract: In a power supply device, a first switching power supply is disposed in a first power line connecting a receiver for receiving power from an external power supply and the power storage device and converts the power received from the external power supply to supply it to the power storage device. A second switching power supply is disposed in the second power line including a first end connected the first power line at a branch point, and a second end connected to the load device, and converts the power received from the power storage device to supply it to the load device. The first noise removal filter is disposed between the branch point and the power storage device in the first power line. The second noise removal filter is disposed between the branch point and the second switching power supply in the second power line.Type: GrantFiled: November 11, 2019Date of Patent: June 15, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kento Mochizuki, Shuhei Chizuwa
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Patent number: 10924027Abstract: The switching power supply device is provided with: a plurality of power supply circuits corresponding to phases of a multi-phase AC power supply; a switching circuit that is capable of switching a phase connected to a power supply circuit not corresponding to one discretionary phase of the multi-phase AC power supply between the one discretionary phase and a phase to which the power supply circuit corresponds; an inrush current prevention circuit for preventing inrush current that is provided on a negative-electrode-side power supply line of the multi-phase AC power supply and at a position further toward the multi-phase AC power supply than is a connection point to which each of the plurality of power supply circuits are connected; and a filter circuit that is provided between the multi-phase AC power supply and the inrush current prevention circuit and has all lines of the plurality of phases magnetically coupled thereto.Type: GrantFiled: October 22, 2019Date of Patent: February 16, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Shintaro Tazaki, Kento Mochizuki
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Patent number: 10892689Abstract: The switching power supply device is provided with: a plurality of power supply circuits corresponding to phases of a multi-phase AC power supply; a switching circuit that is capable of switching a phase connected to a power supply circuit not corresponding to one discretionary phase of the multi-phase AC power supply between the one discretionary phase and a phase to which the power supply circuit corresponds; an inrush current prevention circuit for preventing inrush current that is provided on a negative-electrode-side power supply line of the multi-phase AC power supply and at a position further toward the multi-phase AC power supply than is a connection point to which each of the plurality of power supply circuits are connected; and a filter circuit that is provided between the multi-phase AC power supply and the inrush current prevention circuit and has all lines of the plurality of phases magnetically coupled thereto.Type: GrantFiled: October 22, 2019Date of Patent: January 12, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Shintaro Tazaki, Kento Mochizuki
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Patent number: 10882402Abstract: In the present invention, the connection between an external power supply and a unit for detecting welding of a relay is disestablished at least when a short circuit is detected, thereby preventing the short circuit from being falsely detected in the event that the short circuit and the welding of the relay can both be detected. A device for detecting welding of a relay detects welding of a relay provided to a path via which a cell is charged by an external power supply. Welding of a power-supply-side relay or a ground-side relay is detected on the basis of a current flowing disproportionately more toward the external power supply than the power-supply-side relay or ground-side relay when a control unit has deactivated the power-supply-side relay or ground-side relay during an interrupting in charging. A disconnecting switch establishes or disestablishes the connection between the external power supply and a weld-detection switch.Type: GrantFiled: September 28, 2018Date of Patent: January 5, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kento Mochizuki, Shintaro Tazaki
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Publication number: 20200402696Abstract: A core includes a winding part, and a wall part including a first wall part, a second wall part spaced apart from the first wall part and disposed opposite to the first wall part, a third wall part in contact the first wall part, and a fourth wall part disposed opposite to the third wall part. The wall part surrounds the winding part.Type: ApplicationFiled: June 19, 2020Publication date: December 24, 2020Inventors: Shana YANAGIMOTO, Kento MOCHIZUKI
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Publication number: 20200323101Abstract: This switching power supply device having a plurality of power supply circuits to be connected to a multi-phase power supply, is provided with: a first substrate on which an electric component constituting a filter circuit is mounted, the output end of the filter circuit being provided on one end side in a first direction; a second substrate on which a power semiconductor constituting a circuit provided at a stage later than the filter circuit is mounted, the input end of the circuit provided at the stage later than the filter circuit being provided on one end side in a second direction that intersects with the first direction; and a third substrate which is disposed between the first substrate and the second substrate, and on which a wiring pattern for electrically connecting the output end to the input end is formed.Type: ApplicationFiled: June 23, 2020Publication date: October 8, 2020Inventors: Shintaro TAZAKI, Kento MOCHIZUKI
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Publication number: 20200076293Abstract: In a power supply device, a first switching power supply is disposed in a first power line connecting a receiver for receiving power from an external power supply and the power storage device and converts the power received from the external power supply to supply it to the power storage device. A second switching power supply is disposed in the second power line including a first end connected the first power line at a branch point, and a second end connected to the load device, and converts the power received from the power storage device to supply it to the load device. The first noise removal filter is disposed between the branch point and the power storage device in the first power line. The second noise removal filter is disposed between the branch point and the second switching power supply in the second power line.Type: ApplicationFiled: November 11, 2019Publication date: March 5, 2020Inventors: KENTO MOCHIZUKI, SHUHEI CHIZUWA
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Publication number: 20200052606Abstract: The switching power supply device is provided with: a plurality of power supply circuits corresponding to phases of a multi-phase AC power supply; a switching circuit that is capable of switching a phase connected to a power supply circuit not corresponding to one discretionary phase of the multi-phase AC power supply between the one discretionary phase and a phase to which the power supply circuit corresponds; an inrush current prevention circuit for preventing inrush current that is provided on a negative-electrode-side power supply line of the multi-phase AC power supply and at a position further toward the multi-phase AC power supply than is a connection point to which each of the plurality of power supply circuits are connected; and a filter circuit that is provided between the multi-phase AC power supply and the inrush current prevention circuit and has all lines of the plurality of phases magnetically coupled thereto.Type: ApplicationFiled: October 22, 2019Publication date: February 13, 2020Inventors: Shintaro TAZAKI, Kento MOCHIZUKI
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Publication number: 20190025362Abstract: In the present invention, the connection between an external power supply and a unit for detecting welding of a relay is disestablished at least when a short circuit is detected, thereby preventing the short circuit from being falsely detected in the event that the short circuit and the welding of the relay can both be detected. A device for detecting welding of a relay detects welding of a relay provided to a path via which a cell is charged by an external power supply. Welding of a power-supply-side relay or a ground-side relay is detected on the basis of a current flowing disproportionately more toward the external power supply than the power-supply-side relay or ground-side relay when a control unit has deactivated the power-supply-side relay or ground-side relay during an interrupting in charging. A disconnecting switch establishes or disestablishes the connection between the external power supply and a weld-detection switch.Type: ApplicationFiled: September 28, 2018Publication date: January 24, 2019Inventors: Kento MOCHIZUKI, Shintaro TAZAKI
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Patent number: 10114059Abstract: In the present invention, the connection between an external power supply and a unit for detecting welding of a relay is disestablished at least when a short circuit is detected, thereby preventing the short circuit from being falsely detected in the event that the short circuit and the welding of the relay can both be detected. A device for detecting welding of a relay detects welding of a relay provided to a path via which a cell is charged by an external power supply. Welding of a power-supply-side relay or a ground-side relay is detected on the basis of a current flowing disproportionately more toward the external power supply than the power-supply-side relay or ground-side relay when a control unit has deactivated the power-supply-side relay or ground-side relay during an interrupting in charging. A disconnecting switch establishes or disestablishes the connection between the external power supply and a weld-detection switch.Type: GrantFiled: May 8, 2018Date of Patent: October 30, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kento Mochizuki, Shintaro Tazaki
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Publication number: 20180259564Abstract: In the present invention, the connection between an external power supply and a unit for detecting welding of a relay is disestablished at least when a short circuit is detected, thereby preventing the short circuit from being falsely detected in the event that the short circuit and the welding of the relay can both be detected. A device for detecting welding of a relay detects welding of a relay provided to a path via which a cell is charged by an external power supply. Welding of a power-supply-side relay or a ground-side relay is detected on the basis of a current flowing disproportionately more toward the external power supply than the power-supply-side relay or ground-side relay when a control unit has deactivated the power-supply-side relay or ground-side relay during an interrupting in charging. A disconnecting switch establishes or disestablishes the connection between the external power supply and a weld-detection switch.Type: ApplicationFiled: May 8, 2018Publication date: September 13, 2018Inventors: Kento MOCHIZUKI, Shintaro TAZAKI
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Patent number: 9989573Abstract: In the present invention, the connection between an external power supply and a unit for detecting welding of a relay is disestablished at least when a short circuit is detected, thereby preventing the short circuit from being falsely detected in the event that the short circuit and the welding of the relay can both be detected. A device for detecting welding of a relay detects welding of a relay provided to a path via which a cell is charged by an external power supply. Welding of a power-supply-side relay or a ground-side relay is detected on the basis of a current flowing disproportionately more toward the external power supply than the power-supply-side relay or ground-side relay when a control unit has deactivated the power-supply-side relay or ground-side relay during an interrupting in charging. A disconnecting switch establishes or disestablishes the connection between the external power supply and a weld-detection switch.Type: GrantFiled: September 11, 2013Date of Patent: June 5, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kento Mochizuki, Shintaro Tazaki
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Publication number: 20150241500Abstract: In the present invention, the connection between an external power supply and a unit for detecting welding of a relay is disestablished at least when a short circuit is detected, thereby preventing the short circuit from being falsely detected in the event that the short circuit and the welding of the relay can both be detected. A device for detecting welding of a relay detects welding of a relay provided to a path via which a cell is charged by an external power supply. Welding of a power-supply-side relay or a ground-side relay is detected on the basis of a current flowing disproportionately more toward the external power supply than the power-supply-side relay or ground-side relay when a control unit has deactivated the power-supply-side relay or ground-side relay during an interrupting in charging. A disconnecting switch establishes or disestablishes the connection between the external power supply and a weld-detection switch.Type: ApplicationFiled: September 11, 2013Publication date: August 27, 2015Inventors: Kento Mochizuki, Shintaro Tazaki
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Patent number: 9108645Abstract: Provided is a high mobility railroad vehicle system configured to reciprocally carry out a direct drive between a non-electrically driven section and an electrically driven section without installing new facilities such as oil supply equipment and without considering distinction between the non-electrically and electrically driven sections. A railroad vehicle system is provided with an overall control apparatus to respectively control an external electric power supply means, an internal electric power supply means, an electricity storage means, electric power conversion means and a motor driving means. The railroad vehicle system judges or previously notifies as to whether the present driving railroad section is the electrically driven section or non-electrically driven section in accordance with driving position information received from a position information generation means such as a ground facility on a railroad equipped outside of the vehicle and a global positioning system (GPS).Type: GrantFiled: June 15, 2009Date of Patent: August 18, 2015Assignee: HITACHI, LTD.Inventors: Motomi Shimada, Takashi Kaneko, Kento Mochizuki, Seiji Ishida
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Patent number: 9090165Abstract: A system corresponding to a plurality of different power sources (overhead contact line, power generator driven by engine, and fuel cells) is proposed as a method of using an optimum power supply in an electrified route and a non-electrified route. Provided are: a power conversion circuit that includes AC input ends, the number of which corresponds to the maximum number of phases among a plurality of different AC power supplies, and that converts AC power to a direct current; and switching means for switching a connection state of the AC power supplies and the power conversion circuit, wherein the connection state is switched according to the power supplies.Type: GrantFiled: January 10, 2012Date of Patent: July 28, 2015Assignee: HITACHI, LTD.Inventors: Satoru Inarida, Koji Agatsuma, Kento Mochizuki
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Patent number: 8760095Abstract: To prevent demagnetization of a permanent magnet synchronous rotating machine, a rotating machine control device according to the present invention is a rotating machine control device comprising: a power converter having a switch part on each of a positive side and a negative side for each phase; and short circuit detection unit for detecting a short circuit of the switch part, wherein a command to turn on positive-side switches and negative-side switches of a plurality of phases of the switch part is issued in the case where the short circuit detection unit detects the short circuit.Type: GrantFiled: December 12, 2011Date of Patent: June 24, 2014Assignee: Hitachi, Ltd.Inventors: Yoshitaka Iwaji, Daigo Kaneko, Kento Mochizuki, Takeshi Shinomiya, Daisuke Kori, Seikichi Masuda
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Publication number: 20130313059Abstract: A system corresponding to a plurality of different power sources (overhead contact line, power generator driven by engine, and fuel cells) is proposed as a method of using an optimum power supply in an electrified route and a non-electrified route. Provided are: a power conversion circuit that includes AC input ends, the number of which corresponds to the maximum number of phases among a plurality of different AC power supplies, and that converts AC power to a direct current; and switching means for switching a connection state of the AC power supplies and the power conversion circuit, wherein the connection state is switched according to the power supplies.Type: ApplicationFiled: January 10, 2012Publication date: November 28, 2013Applicant: HITACHI, LTD.Inventors: Satoru Inarida, Koji Agatsuma, Kento Mochizuki