Patents by Inventor Yuji Takatsu
Yuji Takatsu 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: 10622847Abstract: A wireless power supply system includes: a primary power-supplying coil which is a power-supplying coil capable of wirelessly supplying electric power to another power-supplying coil; a first machine that supports the primary power-supplying coil; a secondary power-supplying coil which is a power-supplying coil wirelessly supplied with electric power from another power-supplying coil; and a second machine that can move while supporting the secondary power-supplying coil. The relative positional relationship or the relative attitudinal relationship between the first machine and the second machine can be adjusted corresponding to the movement or change in attitude of the second machine so that a state in which electric power is wirelessly supplied from the primary power-supplying coil to the secondary power-supplying coil is maintained.Type: GrantFiled: October 26, 2018Date of Patent: April 14, 2020Assignee: IHI CORPORATIONInventors: Yuji Takatsu, Akio Ueda, Motonao Niizuma, Kei Akune, Tooru Hayashi, Akihiko Tsuchiyama, Kazushi Sedokubo, Masaki Kawakita, Mai Kanda, Gongwei Li, Ryota Kokubu
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Patent number: 10348118Abstract: A wireless power transfer system includes: a power supply primary coil capable of performing wireless power transfer; and a power supply secondary coil capable of performing the wireless power transfer between the power supply primary coil and the power supply secondary coil. The power supply secondary coil contains a secondary coil wire for the wireless power transfer and forms a secondary outer shape having a projecting surface on at least a part of the secondary outer shape, and the power supply primary coil and the power supply secondary coil are capable of performing the wireless power transfer, with the projecting surface of the secondary outer shape directed to the power supply primary coil.Type: GrantFiled: September 21, 2016Date of Patent: July 9, 2019Assignee: IHI CORPORATIONInventors: Yuji Takatsu, Susumu Tokura, Akio Ueda, Sho Hashizume, Kei Akune, Tooru Hayashi
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Patent number: 10340743Abstract: A power transmitter includes a power converter that converts power fed from a power source into first DC power, an inverter circuit that converts the first DC power into first AC power, a power transmission coil that generates a magnetic field based on the first AC power, and is magnetically coupled with a power reception coil included in the power receiver, a sensor that detects a current and a voltage of the first DC power, and a controller that controls the power converter, wherein the controller controls the power converter to raise a voltage of the first DC power up to a first voltage lower than a predetermined power feeding time voltage predetermined, and determines whether power is not allowed to be fed to the power receiver based on the current of the first DC power when the voltage of the first DC power is the first voltage.Type: GrantFiled: March 17, 2017Date of Patent: July 2, 2019Assignee: IHI CORPORATIONInventors: Yuji Takatsu, Sho Hashizume, Yuji Maekawa, Eiichiro Fujiwara
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Patent number: 10232725Abstract: An electric power supply system program causes a control apparatus capable of controlling an electric power supply system to realize: a pairing information generating function to generate, when receiving an electric power supply request, specific pairing information that is pairing information; a pairing information transmitting function to transmit the specific pairing information to an object that has output the electric power supply request; a pairing information receiving function to receive the pairing information from the object by communication with the object located in the electric power supply space; and an electric power supply function to supply electric power to the object located in the electric power supply space when the received pairing information coincides with the specific pairing information.Type: GrantFiled: September 13, 2016Date of Patent: March 19, 2019Assignee: IHI CorporationInventors: Yuji Takatsu, Sho Hashizume, Susumu Tokura, Akio Ueda, Kei Akune, Tooru Hayashi
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Patent number: 10236727Abstract: A wireless power transfer system includes: a primary coil support member provided with a fitting member that is fit with a fit member, the primary coil support member being configured to support the power supply primary coil; a secondary coil support member provided with the fit member with which the fitting member is fit, the secondary coil support member being configured to support the power supply secondary coil; and a posture/position adjustment mechanism capable of adjusting a relative posture or position between the primary coil support member and the secondary coil support member to change the posture between a releasing posture and a fitting posture. When the relative posture is changed from the releasing posture to the fitting posture by the adjustment of the posture/position adjustment mechanism, the power supply apparatus performs wireless power transfer from the power supply primary coil to the power supply secondary coil.Type: GrantFiled: September 27, 2016Date of Patent: March 19, 2019Assignee: IHI CORPORATIONInventors: Yuji Takatsu, Akio Ueda, Susumu Tokura, Sho Hashizume, Kei Akune, Tooru Hayashi, Shoei Shibata
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Publication number: 20190068007Abstract: A wireless power supply system includes: a primary power-supplying coil which is a power-supplying coil capable of wirelessly supplying electric power to another power-supplying coil; a first machine that supports the primary power-supplying coil; a secondary power-supplying coil which is a power-supplying coil wirelessly supplied with electric power from another power-supplying coil; and a second machine that can move while supporting the secondary power-supplying coil. The relative positional relationship or the relative attitudinal relationship between the first machine and the second machine can be adjusted corresponding to the movement or change in attitude of the second machine so that a state in which electric power is wirelessly supplied from the primary power-supplying coil to the secondary power-supplying coil is maintained.Type: ApplicationFiled: October 26, 2018Publication date: February 28, 2019Applicant: IHI CORPORATIONInventors: Yuji TAKATSU, Akio UEDA, Motonao NIIZUMA, Kei AKUNE, Tooru HAYASHI, Akihiko TSUCHIYAMA, Kazushi SEDOKUBO, Masaki KAWAKITA, Mai KANDA, Gongwei LI, Ryota KOKUBU
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Patent number: 10177591Abstract: A power-transmitting device transmits AC power generated in an inverter circuit to a power receiving device in a wireless manner by magnetically coupling a power-transmitting coil to a power-receiving coil of the power receiving device. The power-transmitting device is provided with a power transmission controller which controls the aforementioned inverter circuit to change the AC power in accordance with information relating to the state of power transmission to a load connected to the power-receiving device.Type: GrantFiled: August 15, 2016Date of Patent: January 8, 2019Assignee: IHI CORPORATIONInventors: Yuji Takatsu, Jun Araki
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Patent number: 10122211Abstract: A wireless power transfer system includes: a station that a vehicle is capable of entering and leaving; and a bottom part detection sensor having a detection unit capable of detecting an object that enters a detection range, provided at the station, and that outputs a bottom part detection signal corresponding to a portion, which enters the detection range, of a bottom part of the vehicle. The wireless power transfer system executes: a detection signal output step in which the bottom part detection sensor outputs a time-series bottom part detection signal when the vehicle moves in the station at a predetermined speed that is a prescribed speed; and a coil position information extraction step of extracting, from the time-series bottom part detection signal, coil position information that is information about a position of an electric power receiving coil in the vehicle.Type: GrantFiled: September 20, 2016Date of Patent: November 6, 2018Assignee: IHI CORPORATIONInventors: Yuji Takatsu, Susumu Tokura, Akio Ueda, Sho Hashizume, Kei Akune, Tooru Hayashi
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Patent number: 10065510Abstract: The power transmission system includes a power transmitting device that transmits AC power and a power receiving device that receives the AC power. The power receiving device includes a rectifier that converts the received AC power into DC power, a DC converter that performs DC conversion on the DC power output from the rectifier, and a power-receiving side controller that calculates, based on an input voltage of the DC converter, a current command value making input impedance of the DC converter equal to a preset value and controls the DC converter so that an input current of the DC converter equals the current command value.Type: GrantFiled: December 1, 2015Date of Patent: September 4, 2018Assignee: IHI CORPORATIONInventors: Takahiko Murayama, Yuji Maekawa, Yuji Takatsu, Kazushige Doke
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Patent number: 10044235Abstract: The wireless power transfer system obtains, by means of data transfer, specific coil position information that is coil position information corresponding to information related to a position of the electric power supply secondary coil in a specific object that is an object that has made an electric power supply request, and electric power is supplied in a wireless manner from the electric power supply primary coil to the electric power supply secondary coil after the posture/position adjustment mechanism adjusts the relative posture or position between the electric power supply primary coil and the electric power supply secondary coil incorporated in the specific object based on the information related to the position of the electric power supply secondary coil in the specific object corresponding to the specific coil position information.Type: GrantFiled: September 16, 2016Date of Patent: August 7, 2018Assignee: IHI CORPORATIONInventors: Yuji Takatsu, Sho Hashizume, Susumu Tokura, Akio Ueda, Kei Akune, Tooru Hayashi, Shohei Shibata
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Patent number: 9917620Abstract: A vehicle power-supplying device includes: a power-supplying primary coil provided in a parking space where a vehicle is parked, and configured to supply electric power wirelessly to a power-supplying secondary coil provided in the vehicle and configured to wirelessly receive the electric power from the power-supplying primary coil; and a vehicle stopping member configured to stop the vehicle at a desired position of the parking space at which wireless power supply efficiency from the power-supplying primary coil to the power-supplying secondary coil is high.Type: GrantFiled: March 17, 2015Date of Patent: March 13, 2018Assignee: IHI CorporationInventors: Yuji Takatsu, Motonao Niizuma, Akio Ueda, Kei Akune, Tooru Hayashi
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Publication number: 20170194817Abstract: A power transmitter includes a power converter that converts power fed from a power source into first DC power, an inverter circuit that converts the first DC power into first AC power, a power transmission coil that generates a magnetic field based on the first AC power, and is magnetically coupled with a power reception coil included in the power receiver, a sensor that detects a current and a voltage of the first DC power, and a controller that controls the power converter, wherein the controller controls the power converter to raise a voltage of the first DC power up to a first voltage lower than a predetermined power feeding time voltage predetermined, and determines whether power is not allowed to be fed to the power receiver based on the current of the first DC power when the voltage of the first DC power is the first voltage.Type: ApplicationFiled: March 17, 2017Publication date: July 6, 2017Applicant: IHI CORPORATIONInventors: Yuji TAKATSU, Sho HASHIZUME, Yuji MAEKAWA, Eiichiro FUJIWARA
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Publication number: 20170093225Abstract: A power-receiving device is provided with a load circuit including a load and a switching element that are connected in series between a pair of output terminals of a power-receiving side power converter. The load of the load circuit has such a resistance value that the voltage of elements of a power-receiving side pad or the power-receiving side power converter does not reach a breakdown voltage before a power-transmission device stops power transmission to the power-receiving device after the power-receiving device and the load device are disconnected from each other.Type: ApplicationFiled: December 13, 2016Publication date: March 30, 2017Applicant: IHI CORPORATIONInventors: Takahiko MURAYAMA, Yuji TAKATSU, Takayoshi BANDO, Yuji MAEKAWA, Jun ARAKI
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Publication number: 20170018963Abstract: A wireless power transfer system includes: a primary coil support member provided with a fitting member that is fit with a fit member, the primary coil support member being configured to support the power supply primary coil; a secondary coil support member provided with the fit member with which the fitting member is fit, the secondary coil support member being configured to support the power supply secondary coil; and a posture/position adjustment mechanism capable of adjusting a relative posture or position between the primary coil support member and the secondary coil support member to change the posture between a releasing posture and a fitting posture. When the relative posture is changed from the releasing posture to the fitting posture by the adjustment of the posture/position adjustment mechanism, the power supply apparatus performs wireless power transfer from the power supply primary coil to the power supply secondary coil.Type: ApplicationFiled: September 27, 2016Publication date: January 19, 2017Applicant: IHI CORPORATIONInventors: Yuji TAKATSU, Akio UEDA, Susumu TOKURA, Sho HASHIZUME, Kei AKUNE, Tooru HAYASHI, Shoei SHIBATA
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Publication number: 20170008406Abstract: A wireless power transfer system includes: a power receiving apparatus having a power supply secondary coil, and a power supply apparatus having a power supply primary coil, and a drive circuit that drives the power supply primary coil. The power supply primary coil and the power supply secondary coil are arranged such that a first magnetic flux direction line that is a linear virtual line extending in accordance with a direction of a magnetic flux of a magnetic field generated in a central part of the power supply primary coil and a second magnetic flux direction line that is a linear virtual line extending in accordance with a direction of a magnetic flux of a magnetic field generated in a center of the power supply secondary coil substantially intersect, and electric power is capable of being supplied to the power supply secondary coil.Type: ApplicationFiled: September 22, 2016Publication date: January 12, 2017Applicant: IHI CORPORATIONInventors: Yuji TAKATSU, Susumu TOKURA, Akio UEDA, Sho HASHIZUME, Kei AKUNE, Tooru HAYASHI
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Publication number: 20170012474Abstract: A wireless power transfer system includes: a station that a vehicle is capable of entering and leaving; and a bottom part detection sensor having a detection unit capable of detecting an object that enters a detection range, provided at the station, and that outputs a bottom part detection signal corresponding to a portion, which enters the detection range, of a bottom part of the vehicle. The wireless power transfer system executes: a detection signal output step in which the bottom part detection sensor outputs a time-series bottom part detection signal when the vehicle moves in the station at a predetermined speed that is a prescribed speed; and a coil position information extraction step of extracting, from the time-series bottom part detection signal, coil position information that is information about a position of an electric power receiving coil in the vehicle.Type: ApplicationFiled: September 20, 2016Publication date: January 12, 2017Applicant: IHI CORPORATIONInventors: Yuji TAKATSU, Susumu TOKURA, Akio UEDA, Sho HASHIZUME, Kei AKUNE, Tooru HAYASHI
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Publication number: 20170012459Abstract: A wireless power transfer system includes: a power supply primary coil capable of performing wireless power transfer; and a power supply secondary coil capable of performing the wireless power transfer between the power supply primary coil and the power supply secondary coil. The power supply secondary coil contains a secondary coil wire for the wireless power transfer and forms a secondary outer shape having a projecting surface on at least a part of the secondary outer shape, and the power supply primary coil and the power supply secondary coil are capable of performing the wireless power transfer, with the projecting surface of the secondary outer shape directed to the power supply primary coil.Type: ApplicationFiled: September 21, 2016Publication date: January 12, 2017Applicant: IHI CORPORATIONInventors: Yuji TAKATSU, Susumu TOKURA, Akio UEDA, Sho HASHIZUME, Kei AKUNE, Tooru HAYASHI
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Publication number: 20170001531Abstract: The wireless power transfer system obtains, by means of data transfer, specific coil position information that is coil position information corresponding to information related to a position of the electric power supply secondary coil in a specific object that is an object that has made an electric power supply request, and electric power is supplied in a wireless manner from the electric power supply primary coil to the electric power supply secondary coil after the posture/position adjustment mechanism adjusts the relative posture or position between the electric power supply primary coil and the electric power supply secondary coil incorporated in the specific object based on the information related to the position of the electric power supply secondary coil in the specific object corresponding to the specific coil position information.Type: ApplicationFiled: September 16, 2016Publication date: January 5, 2017Applicant: IHI CORPORATIONInventors: Yuji TAKATSU, Sho HASHIZUME, Susumu TOKURA, Akio UEDA, Kei AKUNE, Tooru HAYASHI, Shohei SHIBATA
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Publication number: 20160375784Abstract: An electric power supply system program causes a control apparatus capable of controlling an electric power supply system to realize: a pairing information generating function to generate, when receiving an electric power supply request, specific pairing information that is pairing information; a pairing information transmitting function to transmit the specific pairing information to an object that has output the electric power supply request; a pairing information receiving function to receive the pairing information from the object by communication with the object located in the electric power supply space; and an electric power supply function to supply electric power to the object located in the electric power supply space when the received pairing information coincides with the specific pairing information.Type: ApplicationFiled: September 13, 2016Publication date: December 29, 2016Applicant: IHI CORPORATIONInventors: Yuji TAKATSU, Sho HASHIZUME, Susumu TOKURA, Akio UEDA, Kei AKUNE, Tooru HAYASHI
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Publication number: 20160352139Abstract: A power-transmitting device transmits AC power generated in an inverter circuit to a power receiving device in a wireless manner by magnetically coupling a power-transmitting coil to a power-receiving coil of the power receiving device. The power-transmitting device is provided with a power transmission controller which controls the aforementioned inverter circuit to change the AC power in accordance with information relating to the state of power transmission to a load connected to the power-receiving device.Type: ApplicationFiled: August 15, 2016Publication date: December 1, 2016Applicant: IHI CORPORATIONInventors: Yuji TAKATSU, Jun ARAKI