Patents by Inventor KEN HATAKEYAMA
KEN HATAKEYAMA 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: 10355511Abstract: In a mobile-terminal charging device, a controller performs a safety operation in a case where a resonance frequency detected by a foreign object detection coil corresponding to a location where a charging coil is present is higher than a reference resonance frequency stored in a memory, or a resonance voltage detected by a foreign object detection coil corresponding to a location where the charging coil is present is lower than a reference resonance voltage stored in the memory.Type: GrantFiled: October 30, 2014Date of Patent: July 16, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Ken Hatakeyama, Yuto Yamanishi, Tomohiro Ota, Takeshi Yamamoto
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Patent number: 10141775Abstract: This mobile terminal charging device has a support plate in which the front surface-side part is where a mobile terminal is installed, a charging coil disposed facing the support plate on the rear surface-side of the support plate, a plurality of detection coils concentrically disposed in the charging coil on a surface opposite the support plate, and a control unit connected to the detecting coils. When a charging operation is carried out, the control unit compares the difference between a voltage value detected using a first detecting coil among the plurality of detecting coils, and a voltage value detected using two detecting coils from a group comprising the first detecting coil and at least one detecting coil disposed outward of the first detecting coil. In addition, the control unit executes a safety operation in accordance with the results of the comparison.Type: GrantFiled: May 14, 2015Date of Patent: November 27, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yuto Yamanishi, Ken Hatakeyama, Tomohiro Ota, Takeshi Yamamoto
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Patent number: 10103565Abstract: This handheld-terminal charging device has a plurality of charging coils, a plurality of detection coils, and a control unit that is electrically connected to said charging coils and detection coils. The control unit drives the plurality of detection coils and watches for impedance changes that said detection coils detect when thus driven. If a detection coil detects an impedance change, a charging coil corresponding to said detection coil is selected from among the plurality of charging coils and a magnetic field is outputted from the selected charging coil. If a response signal that has been agreed upon with a handheld terminal is received in response to said magnetic field, the selected charging coil is used to charge said handheld terminal.Type: GrantFiled: June 30, 2015Date of Patent: October 16, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yuto Yamanishi, Ken Hatakeyama
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Patent number: 10090718Abstract: A contactless charging device includes a placement plate on which a portable apparatus is placed, a charging coil, a position detector having a position detection coil, a foreign object detector having a foreign object detection coil, an alarm, and a controller. The position detection coil and the foreign object detection coil are disposed on or under the placement plate. The controller drives the alarm if the foreign object detector detects the presence of a conductive foreign object on the placement plate, and then the position detector detects the portable apparatus on the placement plate.Type: GrantFiled: December 8, 2014Date of Patent: October 2, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yuto Yamanishi, Ken Hatakeyama
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Patent number: 10069337Abstract: A portable terminal charging device includes a large diameter detection coil arranged between a charging coil and a portable terminal, and a further detection coil arranged inward of the large diameter detection coil and having a smaller diameter than the large diameter detection coil. The large diameter detection coil and the further detection coil detect a state of a foreign metal object by finding out a decrease in the magnetic flux of an inward section of the charging coil and conversely finding out an increase in the magnetic flux of an outward section thereof, if the foreign metal object is present between a portable terminal installation unit of a support plate and the portable terminal.Type: GrantFiled: July 30, 2014Date of Patent: September 4, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Ken Hatakeyama, Yuto Yamanishi, Tomohiro Ota, Takeshi Yamamoto
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Patent number: 9985463Abstract: A controller of a mobile terminal charging device compares a resonance frequency or a resonance voltage of each of a plurality of foreign object detection coils with a reference resonance frequency or a reference resonance voltage of each foreign object detection coil, stored in a memory, corresponding to a position of a charging coil. The controller performs a safety operation on the basis of a comparison result.Type: GrantFiled: October 30, 2014Date of Patent: May 29, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Toshiaki Seki, Yuto Yamanishi, Ken Hatakeyama
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Patent number: 9935488Abstract: A charging coil of a portable terminal charging apparatus is provided with a first detection coil, and a second detection coil disposed inward of the first detection coil and having a smaller diameter than a diameter of the first detection coil. The first and second detection coils are connected to a controller. If the ratio (V2/V1) of a second voltage (V2) detected by the second detection coil to a first voltage (V1) detected by the first detection coil is less than a first set value held in a memory between starting of conduction of the charging coil and connection of a charging load of the portable terminal, the controller performs a safety operation.Type: GrantFiled: December 16, 2014Date of Patent: April 3, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yuto Yamanishi, Ken Hatakeyama, Tomohiro Ota, Takeshi Yamamoto
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Publication number: 20170141606Abstract: This handheld-terminal charging device has a plurality of charging coils, a plurality of detection coils, and a control unit that is electrically connected to said charging coils and detection coils. The control unit drives the plurality of detection coils and watches for impedance changes that said detection coils detect when thus driven. If a detection coil detects an impedance change, a charging coil corresponding to said detection coil is selected from among the plurality of charging coils and a magnetic field is outputted from the selected charging coil. If a response signal that has been agreed upon with a handheld terminal is received in response to said magnetic field, the selected charging coil is used to charge said handheld terminal.Type: ApplicationFiled: June 30, 2015Publication date: May 18, 2017Inventors: YUTO YAMANISHI, KEN HATAKEYAMA
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Publication number: 20170117740Abstract: In a mobile terminal charging device, when a charging coil is not being enegized, a control unit alternately performs foreign object detection by driving some of a plurality of foreign object detection coils followed by charging coil location detection by driving a plurality of position detection coils. When the charging coil is being energized, foreign object detection is performed using a large-diameter detection coil and a small-diameter coil with which the charging coil is fitted.Type: ApplicationFiled: March 11, 2015Publication date: April 27, 2017Inventors: Yuto YAMANISHI, Ken HATAKEYAMA, Osamu IWABUCHI
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Publication number: 20170054320Abstract: This mobile terminal charging device has a support plate in which the front surface-side part is where a mobile terminal is installed, a charging coil disposed facing the support plate on the rear surface-side of the support plate, a plurality of detection coils concentrically disposed in the charging coil on a surface opposite the support plate, and a control unit connected to the detecting coils. When a charging operation is carried out, the control unit compares the difference between a voltage value detected using a first detecting coil among the plurality of detecting coils, and a voltage value detected using two detecting coils from a group comprising the first detecting coil and at least one detecting coil disposed outward of the first detecting coil. In addition, the control unit executes a safety operation in accordance with the results of the comparison.Type: ApplicationFiled: May 14, 2015Publication date: February 23, 2017Inventors: YUTO YAMANISHI, KEN HATAKEYAMA, TOMOHIRO OTA, TAKESHI YAMAMOTO
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Publication number: 20170018950Abstract: A contactless charging device includes a placement plate on which a portable apparatus is placed, a charging coil, a position detector having a position detection coil, a foreign object detector having a foreign object detection coil, an alarm, and a controller. The position detection coil and the foreign object detection coil are disposed on or under the placement plate. The controller drives the alarm if the foreign object detector detects the presence of a conductive foreign object on the placement plate, and then the position detector detects the portable apparatus on the placement plate.Type: ApplicationFiled: December 8, 2014Publication date: January 19, 2017Applicant: Panasonic Intellectual Property Managemaent Co., Ltd.Inventors: YUTO YAMANISHI, KEN HATAKEYAMA
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Publication number: 20170005505Abstract: A charging coil of a portable terminal charging apparatus is provided with a first detection coil, and a second detection coil disposed inward of the first detection coil and having a smaller diameter than a diameter of the first detection coil. The first and second detection coils are connected to a controller. If the ratio (V2/V1) of a second voltage (V2) detected by the second detection coil to a first voltage (V1) detected by the first detection coil is less than a first set value held in a memory between starting of conduction of the charging coil and connection of a charging load of the portable terminal, the controller performs a safety operation.Type: ApplicationFiled: December 16, 2014Publication date: January 5, 2017Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: YUTO YAMANISHI, KEN HATAKEYAMA, TOMOHIRO OTA, TAKESHI YAMAMOTO
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Publication number: 20160261130Abstract: A controller of a mobile terminal charging device compares a resonance frequency or a resonance voltage of each of a plurality of foreign object detection coils with a reference resonance frequency or a reference resonance voltage of each foreign object detection coil, stored in a memory, corresponding to a position of a charging coil. The controller performs a safety operation on the basis of a comparison result.Type: ApplicationFiled: October 30, 2014Publication date: September 8, 2016Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: TOSHIAKI SEKI, YUTO YAMANISHI, KEN HATAKEYAMA
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Publication number: 20160241064Abstract: In a mobile-terminal charging device, a controller performs a safety operation in a case where a resonance frequency detected by a foreign object detection coil corresponding to a location where a charging coil is present is higher than a reference resonance frequency stored in a memory, or a resonance voltage detected by a foreign object detection coil corresponding to a location where the charging coil is present is lower than a reference resonance voltage stored in the memory.Type: ApplicationFiled: October 30, 2014Publication date: August 18, 2016Inventors: KEN HATAKEYAMA, YUTO YAMANISHI, TOMOHIRO OTA, TAKESHI YAMAMOTO
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Publication number: 20160197509Abstract: A portable terminal charging device adopts a configuration in which a large diameter detection coil (43) arranged between a charging coil (8) and a portable terminal (15) and a detection coil (44) that is arranged inward of the large diameter detection coil (43) and that has a smaller diameter than the large diameter detection coil (43) detect a state of a foreign metal object (50) by finding out a decrease in the magnetic flux of an inward section of the charging coil (8) and conversely finding out an increase in the magnetic flux of an outward section thereof, if the foreign metal object (50) is present between a portable terminal installation unit of a support plate (6) and the portable terminal (15).Type: ApplicationFiled: July 30, 2014Publication date: July 7, 2016Inventors: KEN HATAKEYAMA, YUTO YAMANISHI, TOMOHIRO OTA, TAKESHI YAMAMOTO
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Publication number: 20160164333Abstract: A position detection coil (14B) is disposed as a foreign matter detector that detects a state where a foreign matter is present on the upper surface of an installation plate (6). Further, the position detection coil (14B) and an alarm unit (43) that emits an alarm when detecting a foreign matter by the position detection coil (14B) are connected to a controller (10). The controller (10) is formed to alternately drive position detectors (both position detection coils (14A), (14B)) and the position detection coil (14B) alone (foreign matter detector), and drive the alarm unit (43) if the detection level that is detected by the position detection coil (14B) alone (foreign matter detector) is higher than a threshold.Type: ApplicationFiled: July 10, 2014Publication date: June 9, 2016Inventors: KEN HATAKEYAMA, YUTO YAMANISHI, TOSHIAKI SEKI