Patents by Inventor Yohei Ide
Yohei Ide 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: 20240310180Abstract: A vehicle substitute simulation device, including a position information acquisition unit for acquiring movement information from an information terminal of a user, an electric vehicle information storage unit for storing electric vehicle performance information relating to a travel performance of an electric vehicle, a ride information acquisition unit for acquiring, from the movement information acquired in a predetermined period, ride information that includes at least movement distance information and waypoint information on an internal combustion engine vehicle driven by the user and including an internal combustion engine, a SoC calculation unit for calculating, from the electric vehicle performance information and the ride information, a remaining amount of electric power of the electric vehicle as SoC information for each waypoint for a case in which the user switches to the electric vehicle, and an output unit for outputting the SoC information to the information terminal of the user.Type: ApplicationFiled: March 5, 2024Publication date: September 19, 2024Inventors: Naohiro AKUZAWA, Kei HIROHATA, Adil GUPTA, Yohei UMEMOTO, Daisuke IDE
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Publication number: 20240312269Abstract: A vehicle replacement simulation device includes a vehicle information acquirer that acquires traveling information collected in a predetermined period and including location information on an internal combustion vehicle of a user and clock time information and acquires traveling distance information including departure location information and parking location information on the vehicle, clock time information, and a traveling distance, a simulation processor that calculates a required charge amount from the traveling distance information on the vehicle in the predetermined period and electric vehicle performance information, calculates a parking time at the user's home, estimates the amount of charge allowed at the home based on the parking time at the home, and further estimates charge information including the amount of charge required away from the home from the amount of charge allowed at the home, and an output processor that outputs the charge information to an information processing device of the useType: ApplicationFiled: March 4, 2024Publication date: September 19, 2024Inventors: Naohiro AKUZAWA, Kei HIROHATA, Adil GUPTA, Yohei UMEMOTO, Daisuke IDE
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Patent number: 9667144Abstract: A DC-DC converter includes a first switching element and a second switching element; a pulse signal generating circuit which generates a pulse signal used to control on/off periods of the switching elements; a limiting circuit which generates a minimum pulse width signal; a selector configured to select one of the pulse signal and the minimum pulse width signal, and a driver circuit switches the first and second switching element and a reverse current detecting circuit detects a reverse current. The driver circuit controls the first or second switching element, when the reverse current is detected. The selector selects the pulse signal when the reverse current is not detected, and selects the minimum pulse width signal when the reverse current is detected.Type: GrantFiled: November 3, 2015Date of Patent: May 30, 2017Assignee: Renesas Electronics CorporationInventor: Yohei Ide
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Publication number: 20160065074Abstract: A DC-DC converter according to the present invention includes a power supply control circuit—that generates pulse signals, an output transistor that is controlled to be turned on and off based on the pulse signal, a rectification transistor—that is controlled to be turned on and off based on a control signal, a coil provided between a node between the output transistor and the rectification transistor, and an external output terminal, a comparator that compares a voltage of the node—with a reference voltage, a first control circuit that generates a control signal based on a comparison result of the comparator, and a second control circuit that generates the control signal based on a backward-current detection timing and a reference timing.Type: ApplicationFiled: November 6, 2015Publication date: March 3, 2016Applicant: Renesas Electronics CorporationInventor: Yohei IDE
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Publication number: 20160056722Abstract: A DC-DC converter includes a first switching element and a second switching element; a pulse signal generating circuit which generates a pulse signal used to control on/off periods of the switching elements; a limiting circuit which generates a minimum pulse width signal; a selector configured to select one of the pulse signal and the minimum pulse width signal, and a driver circuit switches the first and second switching element and a reverse current detecting circuit detects a reverse current. The driver circuit controls the first or second switching element, when the reverse current is detected. The selector selects the pulse signal when the reverse current is not detected, and selects the minimum pulse width signal when the reverse current is detected.Type: ApplicationFiled: November 3, 2015Publication date: February 25, 2016Applicant: Renesas Electronics CorporationInventor: Yohei IDE
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Patent number: 9209695Abstract: A DC-DC converter according to the present invention includes a power supply control circuit—that generates pulse signals, an output transistor that is controlled to be turned on and off based on the pulse signal, a rectification transistor—that is controlled to be turned on and of based on a control signal, a coil provided between a node between the output transistor and the rectification transistor, and an external output terminal, a comparator that compares a voltage of the node—with a reference voltage, a first control circuit that generates a control signal based on a comparison result of the comparator, and a second control circuit that generates the control signal based on a backward-current detection timing and a reference timing.Type: GrantFiled: April 11, 2012Date of Patent: December 8, 2015Assignee: Renesas Electronics CorporationInventor: Yohei Ide
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Patent number: 9203316Abstract: A DC-DC converter includes a first switching element and a second switching element; a pulse signal generating circuit which generates a pulse signal used to control on/off periods of the switching elements; a limiting circuit which generates a minimum pulse width signal; a selector configured to select one of the pulse signal and the minimum pulse width signal, and a driver circuit switches the first and second switching element and a reverse current detecting circuit detects a reverse current. The driver circuit controls the first or second switching element, when the reverse current is detected. The selector selects the pulse signal when the reverse current is not detected, and selects the minimum pulse width signal when the reverse current is detected.Type: GrantFiled: November 16, 2012Date of Patent: December 1, 2015Assignee: Renesas Electronics CorporationInventor: Yohei Ide
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Publication number: 20140043005Abstract: A DC-DC converter according to the present invention includes a power supply control circuit-that generates pulse signals, an output transistor that is controlled to be turned on and off based on the pulse signal, a rectification transistor-that is controlled to be turned on and of based on a control signal, a coil provided between a node between the output transistor and the rectification transistor, and an external output terminal, a comparator that compares a voltage of the node-with a reference voltage, a first control circuit that generates a control signal based on a comparison result of the comparator, and a second control circuit that generates the control signal based on a backward-current detection timing and a reference timing.Type: ApplicationFiled: April 11, 2012Publication date: February 13, 2014Inventor: Yohei Ide