Patents by Inventor Yoshihiko Maeda
Yoshihiko Maeda 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: 20230311728Abstract: A vehicle seat air-conditioning device includes: a blower that is included in a seat; at least one of an inlet duct or an outlet duct, the inlet duct being a duct through which air is led to be drawn in from a surface of the seat by the blower, and the outlet duct being a duct through which the air led by the blower is discharged from a surface of the seat; and a controller that is electrically connected to the blower. The blower includes a current detection circuit that detects a current consumption of the blower. The controller determines whether an occupant is sitting on the seat, based on the current consumption detected by the current detection circuit.Type: ApplicationFiled: June 12, 2023Publication date: October 5, 2023Inventor: Yoshihiko MAEDA
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Publication number: 20230056109Abstract: The objective of the present invention is to reduce the content of dialkylcarbamoyl chloride contained in a (meth)acrylic acid ester compound having an isocyanate group. The present invention includes a method for producing a (meth)acrylic acid ester compound having an isocyanate group in which the content of dialkylcarbamoyl chloride is 0.1 mass % or less, where the method includes a step (2) in which a predetermined compound (B) and phosgene are brought into contact in the presence of an N-disubstituted formamide compound (A) to obtain a phosgene reaction product, and a step (3) in which the phosgene reaction product obtained in step (2) and a hydroxylamine hydrochloride compound are brought into contact to obtain a (meth)acrylic acid ester compound having a predetermined isocyanate group.Type: ApplicationFiled: January 4, 2021Publication date: February 23, 2023Applicant: SHOWA DENKO K.K.Inventors: Tomomitsu WAKABAYASHI, Yoshihiko MAEDA
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Patent number: 11367318Abstract: Reception unit receives data indicating water temperature of a body of water through which a vessel voyages, vessel speed, and a period for which those values are maintained. From storage unit, index value acquisition unit reads out a decrease amount of anti-fouling paint corresponding to the water temperature and vessel speed received by reception unit. Index value specification unit specifies a decrease amount of anti-fouling paint in the period by multiplying the length of time of the period received by reception unit by the decrease amount read out by index value acquisition unit. Remaining amount acquisition unit integrates the decrease amounts of the anti-fouling paint specified by index value specification unit at the time of coating with the anti-fouling paint and onward.Type: GrantFiled: July 17, 2015Date of Patent: June 21, 2022Assignee: Nippon Yusen Kabushiki KaishaInventors: Jun Kato, Kentaro Sato, Yoshihiko Maeda
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Patent number: 11251739Abstract: A vehicle driving device includes an inverter which drives a motor. The inverter includes: a three-phase bridge circuit including a plurality of switching elements; a three-phase short circuit which short-circuits three phases of the motor via the three-phase bridge circuit; and a control circuit. The control circuit includes: a microprocessor which drives the three-phase bridge circuit; a malfunction notification circuit which outputs a malfunction notification signal when the microprocessor is malfunctioning; and a latch circuit which holds the malfunction notification signal outputted from the malfunction notification circuit. The control circuit outputs a three-phase short-circuit drive signal which drives the three-phase short circuit, based on the malfunction notification signal held by the latch circuit.Type: GrantFiled: May 18, 2020Date of Patent: February 15, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yoshihiko Maeda, Hisazumi Watanabe, Yuji Aoki, Akitaka Yoshikawa
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Patent number: 11095237Abstract: A vehicle driving apparatus includes an inverter which drives a permanent magnet motor. The inverter includes a three-phase bridge circuit including a plurality of switch elements, a drive circuit connected to the three-phase bridge circuit, a control circuit connected to the drive circuit, and an abnormality detecting unit which detects abnormality of the inverter. The drive circuit includes a three-phase-short-circuit-forming circuit which causes three phases of the permanent magnet motor to form short circuits, an abnormality accepting terminal which accepts an abnormality signal output from the abnormality detecting unit, and a check terminal which accepts an active check signal for causing the three-phase-short-circuit-forming circuit to perform three-phase short circuit control.Type: GrantFiled: December 4, 2019Date of Patent: August 17, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Junichi Yukawa, Naoya Iwasaki, Hisazumi Watanabe, Yoshihiko Maeda
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Publication number: 20210006195Abstract: A vehicle driving device includes an inverter which drives a motor. The inverter includes: a three-phase bridge circuit including a plurality of switching elements; a three-phase short circuit which short-circuits three phases of the motor via the three-phase bridge circuit; and a control circuit. The control circuit includes: a microprocessor which drives the three-phase bridge circuit; a malfunction notification circuit which outputs a malfunction notification signal when the microprocessor is malfunctioning; and a latch circuit which holds the malfunction notification signal outputted from the malfunction notification circuit. The control circuit outputs a three-phase short-circuit drive signal which drives the three-phase short circuit, based on the malfunction notification signal held by the latch circuit.Type: ApplicationFiled: May 18, 2020Publication date: January 7, 2021Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yoshihiko MAEDA, Hisazumi WATANABE, Yuji AOKI, Akitaka YOSHIKAWA
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Publication number: 20200186058Abstract: A vehicle driving apparatus includes an inverter which drives a permanent magnet motor. The inverter includes a three-phase bridge circuit including a plurality of switch elements, a drive circuit connected to the three-phase bridge circuit, a control circuit connected to the drive circuit, and an abnormality detecting unit which detects abnormality of the inverter. The drive circuit includes a three-phase-short-circuit-forming circuit which causes three phases of the permanent magnet motor to form short circuits, an abnormality accepting terminal which accepts an abnormality signal output from the abnormality detecting unit, and a check terminal which accepts an active check signal for causing the three-phase-short-circuit-forming circuit to perform three-phase short circuit control.Type: ApplicationFiled: December 4, 2019Publication date: June 11, 2020Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Junichi YUKAWA, Naoya IWASAKI, Hisazumi WATANABE, Yoshihiko MAEDA
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Patent number: 10411609Abstract: The present disclosure reduces heat concentration on switching elements. A plurality of high-side transistors are connected in parallel to constitute high-side switching element. A plurality of low-side transistors are connected in parallel to constitute low-side switching element. The plurality of high-side transistors are arranged, one by one, next to the plurality of low-side transistors.Type: GrantFiled: December 3, 2018Date of Patent: September 10, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Junichi Yukawa, Yoshihiko Maeda, Satoshi Okawa
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Publication number: 20190199224Abstract: The present disclosure reduces heat concentration on switching elements. A plurality of high-side transistors are connected in parallel to constitute high-side switching element. A plurality of low-side transistors are connected in parallel to constitute low-side switching element. The plurality of high-side transistors are arranged, one by one, next to the plurality of low-side transistors.Type: ApplicationFiled: December 3, 2018Publication date: June 27, 2019Inventors: JUNICHI YUKAWA, YOSHIHIKO MAEDA, SATOSHI OKAWA
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Patent number: 10139235Abstract: A fuel oil information providing server device acquires a reference fuel oil price at bunkering locations on a sailing route specified by a voyage ID input to a terminal device by a user or at which a ship is able to call from the sailing route, and data indicating conditions for correcting the reference fuel oil price, and specifies a fuel oil price obtained by correcting the reference fuel oil price indicated by the acquired data in accordance with the conditions. Fuel oil information providing server device generates display instruction data for instructing that a specified fuel oil price be displayed as a list along with determination rules for a bunkering amount at one or more bunkering locations, and outputs the data to a terminal device that displays information to be used for formulating a bunkering plan.Type: GrantFiled: January 9, 2014Date of Patent: November 27, 2018Assignee: Nippon Yusen Kabushiki KaishaInventors: Atsushi Yamaguchi, Masaharu Urabe, Yoshihiko Maeda, Ryo Kakuta
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Patent number: 10065585Abstract: A vehicle power supply system has a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, a DC-DC converter, and a controller. In a case where power is supplied to both of a starter and an electrical component from any one of a first battery and a second battery, the controller causes power to be supplied to the electrical component via the DC-DC converter.Type: GrantFiled: July 7, 2015Date of Patent: September 4, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Naoya Iwasaki, Yoshihiko Maeda
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Publication number: 20180211453Abstract: Reception unit receives data indicating water temperature of a body of water through which a vessel voyages, vessel speed, and a period for which those values are maintained. From storage unit, index value acquisition unit reads out a decrease amount of anti-fouling paint corresponding to the water temperature and vessel speed received by reception unit. Index value specification unit specifies a decrease amount of anti-fouling paint in the period by multiplying the length of time of the period received by reception unit by the decrease amount read out by index value acquisition unit. Remaining amount acquisition unit integrates the decrease amounts of the anti-fouling paint specified by index value specification unit at the time of coating with the anti-fouling paint and onward.Type: ApplicationFiled: July 17, 2015Publication date: July 26, 2018Applicant: Nippon Yusen Kabushiki KaishaInventors: Jun KATO, Kentaro SATO, Yoshihiko MAEDA
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Patent number: 9876459Abstract: A motor driving circuit has a supply line connected to a DC power source, an inverter whose input side is connected to the supply line and whose output side is connected to a motor, a power switch inserted in the supply line for switching the supply line between conducting and cut-off states, a voltage detector for detecting a voltage between the direct-current power source and the power switch, and an insulation resistance detector for first detecting, based on a result of detection by the voltage detector with the power switch in the cut-off state, an insulation resistance on the preceding-stage side of the power switch and subsequently detecting, based on a result of detection by the voltage detector with the power switch in the conducting state, an insulation resistance on the succeeding-stage side of the power switch.Type: GrantFiled: May 1, 2017Date of Patent: January 23, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yoshinori Hayashi, Hoshihito Okada, Yoshihiko Maeda, Yoichi Enomoto, Hiroshi Takao
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Publication number: 20170237382Abstract: A motor driving circuit has a supply line connected to a DC power source, an inverter whose input side is connected to the supply line and whose output side is connected to a motor, a power switch inserted in the supply line for switching the supply line between conducting and cut-off states, a voltage detector for detecting a voltage between the direct-current power source and the power switch, and an insulation resistance detector for first detecting, based on a result of detection by the voltage detector with the power switch in the cut-off state, an insulation resistance on the preceding-stage side of the power switch and subsequently detecting, based on a result of detection by the voltage detector with the power switch in the conducting state, an insulation resistance on the succeeding-stage side of the power switch.Type: ApplicationFiled: May 1, 2017Publication date: August 17, 2017Inventors: Yoshinori HAYASHI, Hoshihito OKADA, Yoshihiko MAEDA, Yoichi ENOMOTO, Hiroshi TAKAO
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Publication number: 20170197567Abstract: A vehicle power supply system has a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, a DC-DC converter, and a controller. In a case where power is supplied to both of a starter and an electrical component from any one of a first battery and a second battery, the controller causes power to be supplied to the electrical component via the DC-DC converter.Type: ApplicationFiled: July 7, 2015Publication date: July 13, 2017Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: NAOYA IWASAKI, YOSHIHIKO MAEDA
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Patent number: 9673746Abstract: A motor driving circuit has a supply line connected to a DC power source, an inverter whose input side is connected to the supply line and whose output side is connected to a motor, a power switch inserted in the supply line for switching the supply line between conducting and cut-off states, a voltage detector for detecting a voltage between the direct-current power source and the power switch, and an insulation resistance detector for first detecting, based on a result of detection by the voltage detector with the power switch in the cut-off state, an insulation resistance on the preceding-stage side of the power switch and subsequently detecting, based on a result of detection by the voltage detector with the power switch in the conducting state, an insulation resistance on the succeeding-stage side of the power switch.Type: GrantFiled: February 29, 2016Date of Patent: June 6, 2017Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yoshinori Hayashi, Hoshihito Okada, Yoshihiko Maeda, Yoichi Enomoto, Hiroshi Takao
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Publication number: 20160320191Abstract: A fuel oil information providing server device acquires a reference fuel oil price at bunkering locations on a sailing route specified by a voyage ID input to a terminal device by a user or at which a ship is able to call from the sailing route, and data indicating conditions for correcting the reference fuel oil price, and specifies a fuel oil price obtained by correcting the reference fuel oil price indicated by the acquired data in accordance with the conditions. Fuel oil information providing server device generates display instruction data for instructing that a specified fuel oil price be displayed as a list along with determination rules for a bunkering amount at one or more bunkering locations, and outputs the data to a terminal device that displays information to be used for formulating a bunkering plan.Type: ApplicationFiled: January 9, 2014Publication date: November 3, 2016Applicant: NIPPON YUSEN KABUSHIKI KAISHAInventors: Atsushi YAMAGUCHI, Masaharu URABE, Yoshihiko MAEDA, Ryo KAKUTA
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Publication number: 20160181965Abstract: A motor driving circuit has a supply line connected to a DC power source, an inverter whose input side is connected to the supply line and whose output side is connected to a motor, a power switch inserted in the supply line for switching the supply line between conducting and cut-off states, a voltage detector for detecting a voltage between the direct-current power source and the power switch, and an insulation resistance detector for first detecting, based on a result of detection by the voltage detector with the power switch in the cut-off state, an insulation resistance on the preceding-stage side of the power switch and subsequently detecting, based on a result of detection by the voltage detector with the power switch in the conducting state, an insulation resistance on the succeeding-stage side of the power switch.Type: ApplicationFiled: February 29, 2016Publication date: June 23, 2016Inventors: Yoshinori HAYASHI, Hoshihito OKADA, Yoshihiko MAEDA, Yoichi ENOMOTO, Hiroshi TAKAO
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Patent number: 9312797Abstract: A motor driving circuit has a supply line connected to a DC power source, an inverter whose input side is connected to the supply line and whose output side is connected to a motor, a power switch inserted in the supply line for switching the supply line between conducting and cut-off states, a voltage detector for detecting a voltage between the direct-current power source and the power switch, and an insulation resistance detector for first detecting, based on a result of detection by the voltage detector with the power switch in the cut-off state, an insulation resistance on the preceding-stage side of the power switch and subsequently detecting, based on a result of detection by the voltage detector with the power switch in the conducting state, an insulation resistance on the succeeding-stage side of the power switch.Type: GrantFiled: March 14, 2013Date of Patent: April 12, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yoshinori Hayashi, Hoshihito Okada, Yoshihiko Maeda, Yoichi Enomoto, Hiroshi Takao
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Patent number: 9236827Abstract: A motor drive circuit comprises: a DC power supply; power supply lines; an inverter which has upper arm switch elements and lower arm switch elements; and a detection unit for detecting, based on a power state on the previous stage side of the inverter, the insulation resistances of the motor drive circuit and the motor. The detection unit performs a first detection operation for detecting the insulation resistances by using the output of the DC power supply while the upper arm switch elements and the lower arm switch elements are all turned off and a second detection operation for detecting the insulation resistances by using the output of the DC power supply while the elements of one of the upper arm switch elements and the lower arm switch elements are all turned off and at least one of the elements of the other one is turned on.Type: GrantFiled: May 15, 2012Date of Patent: January 12, 2016Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yoichi Enomoto, Hiroshi Takao, Yoshihiko Maeda, Hoshihito Okada