Patents by Inventor Kiwon Han
Kiwon Han 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: 20160020633Abstract: Disclosed is a wireless charger for a mobile terminal, by which charging can be raised irrespective of a location of a mobile terminal mounted on the wireless charger. The present invention includes a housing, a power transmitting coil provided within the housing in a manner of being spirally wound plural times, a power supply module configured to externally supply a power to the power transmitting coil, a driving unit connected to a spiral center of the power transmitting coil, a sensing unit configured to sense a location of the mobile terminal mounted on a topside of the housing, and a control unit controlling the driving unit to shift the spiral center of the power transmitting coil to the location of the mobile terminal sensed by the sensing unit.Type: ApplicationFiled: April 2, 2014Publication date: January 21, 2016Applicant: LG Electronics Inc.Inventors: Kiwon HAN, Euntaek JEOUNG, Jun PARK, Buyoung YANG, Donghyun SEO
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Publication number: 20150236539Abstract: A mobile terminal is provided that includes a body to be mountable to a first charging apparatus, a current generator to generate an induction current by using a current of the first charging apparatus, and a wireless charger between the current generator and the battery to charge the battery by converting the induction current into a direct current. The mobile terminal may also include a connection port to be electrically connected to the battery and being connectable to a power supply terminal of a second charging apparatus, and a power charging controller to disconnect an electrically connected status between the wireless charger and the battery when the power supply terminal is electrically connected to the connection port.Type: ApplicationFiled: April 30, 2015Publication date: August 20, 2015Inventors: Sekwon PARK, Kiwon Han, Janggeun Oh
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Patent number: 9076580Abstract: A coil for forming an induced magnetic field may include a first coil bundle formed of a first conducting wire wound in a first direction, the first coil bundle having an inner space of a prescribed inner width, a second coil bundle formed of a second conducting wire wound in a second direction, the second coil bundle having a prescribed outer width that is smaller than the inner width of the first coil bundle, and a connector that electrically connects the first conducting wire and the second conducting wire to each other. The second coil bundle may be provided in the inner space of the first coil bundle. The conducting wires of the first and second coil bundles may be wound in opposite directions and gaps between coil bundles may be changed. Accordingly, the magnetic field can be more evenly distributed in a wider area while maintaining a constant inductance.Type: GrantFiled: November 22, 2013Date of Patent: July 7, 2015Assignee: LG ELECTRONICS INC.Inventors: Jun Park, Euntaek Jeoung, Kiwon Han, Buyoung Yang, Donghyun Seo
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Patent number: 9035600Abstract: A mobile terminal is provided that includes a body to be mountable to a first charging apparatus, a current generator to generate an induction current by using a current of the first charging apparatus, and a wireless charger between the current generator and the battery to charge the battery by converting the induction current into a direct current. The mobile terminal may also include a connection port to be electrically connected to the battery and being connectable to a power supply terminal of a second charging apparatus, and a power charging controller to disconnect an electrically connected status between the wireless charger and the battery when the power supply terminal is electrically connected to the connection port.Type: GrantFiled: December 14, 2011Date of Patent: May 19, 2015Assignee: LG ELECTRONICS INC.Inventors: Sekwon Park, Kiwon Han, Janggeun Oh
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Patent number: 8995910Abstract: An antenna and a mobile terminal having the antenna are discussed. According to an embodiment, the antenna can include a flexible board having a first region and a second region; a high frequency antenna pattern formed in the first region of the flexible board to transceive a wireless signal by detecting a magnetic flux; a low frequency antenna pattern formed in the second region of the flexible board to generate an induced current; and a magnetic sheet stacked on one surface of the flexible board to simultaneously cover both of the high frequency antenna pattern and the low frequency antenna pattern, the magnetic sheet having a high magnetic permeability for both a high frequency and a low frequency.Type: GrantFiled: November 26, 2012Date of Patent: March 31, 2015Assignee: LG Electronics Inc.Inventors: Kabsung Chong, Jongoh Kim, Youngtae Kim, Mizi Yi, Kiwon Han, Euntaek Jeoung
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Patent number: 8798538Abstract: A mobile terminal including a power supply unit including a chargeable battery; a wireless power transmitting unit configured to transform power supplied from the battery into a magnetic field, and to transmit the magnetic field to at least one other terminal placed within a predetermined distance from the mobile terminal; and a controller configured to control an amount of power supplied from the battery to the wireless power transmitting unit.Type: GrantFiled: December 18, 2012Date of Patent: August 5, 2014Assignee: LG Electronics Inc.Inventors: Kiwon Han, Hyunsun Yoo, Youngtae Kim, Mizi Yi, Joonbum Lee, Kabsung Chong
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Publication number: 20140145810Abstract: A coil for forming an induced magnetic field may include a first coil bundle formed of a first conducting wire wound in a first direction, the first coil bundle having an inner space of a prescribed inner width, a second coil bundle formed of a second conducting wire wound in a second direction, the second coil bundle having a prescribed outer width that is smaller than the inner width of the first coil bundle, and a connector that electrically connects the first conducting wire and the second conducting wire to each other. The second coil bundle may be provided in the inner space of the first coil bundle. The conducting wires of the first and second coil bundles may be wound in opposite directions and gaps between coil bundles may be changed. Accordingly, the magnetic field can be more evenly distributed in a wider area while maintaining a constant inductance.Type: ApplicationFiled: November 22, 2013Publication date: May 29, 2014Inventors: Jun PARK, Euntaek JEOUNG, Kiwon HAN, Buyoung YANG, Donghyun SEO
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Publication number: 20130307473Abstract: Disclosed is a mobile terminal capable of wirelessly charging a battery using a magnetic induction method. The mobile terminal may include a battery configured to support normal charging mode and fast charging mode, a power pick-up unit configured to pick up power transmitted by a wireless charging device based on magnetic induction, generate a charging voltage based on the pick-up power, and supply the charging voltage to the battery, and a control unit configured to increase the pick-up power by controlling an impedance of the power pick-up unit and increase a charging speed of the battery based on the increased pick-up power in the fast charging mode. The mobile terminal can increase the charging speed of the battery in such a way as to increase pick-up power from power transmitted by the wireless charging device by varying the impedance of the power pick-up unit in fast charging mode.Type: ApplicationFiled: May 8, 2013Publication date: November 21, 2013Inventors: Kiwon HAN, Kabsung Chong, Youngtae Kim, Joonbum Lee, Mizi Yi
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Publication number: 20130304583Abstract: The present disclosure relates to a mobile terminal, and more particularly, to a mobile terminal capable of wireless charging and a control method thereof. A mobile terminal according to an embodiment of the present disclosure may include a power receiving unit formed to receive power in a wireless manner from a wireless charging pad; a wireless communication unit configured to transmit user information to a server or the wireless charging pad, and receive advertisement content associated with the user information from the server or the wireless charging pad; a display unit formed to display the advertisement content; and a controller configured to manage history information displayed with the advertisement content on the display unit and control the power receiving unit to receive power in a wireless manner from the wireless charging pad based on the history information.Type: ApplicationFiled: April 17, 2013Publication date: November 14, 2013Applicant: LG ELECTRONICS INC.Inventors: Kiwon HAN, Youngtae KIM, Kabsung CHONG, Mizi YI
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Publication number: 20130281160Abstract: A mobile terminal including a power supply unit including a chargeable battery; a wireless power transmitting unit configured to transform power supplied from the battery into a magnetic field, and to transmit the magnetic field to at least one other terminal placed within a predetermined distance from the mobile terminal; and a controller configured to control an amount of power supplied from the battery to the wireless power transmitting unit.Type: ApplicationFiled: December 18, 2012Publication date: October 24, 2013Applicant: LG ELECTRONICS INC.Inventors: Kiwon HAN, Hyunsun YOO, Youngtae KIM, Mizi YI, Joonbum LEE, Kabsung CHONG
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Publication number: 20130267170Abstract: An antenna and a mobile terminal having the antenna are discussed. According to an embodiment, the antenna can include a flexible board having a first region and a second region; a high frequency antenna pattern formed in the first region of the flexible board to transceive a wireless signal by detecting a magnetic flux; a low frequency antenna pattern formed in the second region of the flexible board to generate an induced current; and a magnetic sheet stacked on one surface of the flexible board to simultaneously cover both of the high frequency antenna pattern and the low frequency antenna pattern, the magnetic sheet having a high magnetic permeability for both a high frequency and a low frequency.Type: ApplicationFiled: November 26, 2012Publication date: October 10, 2013Applicant: LG ELECTRONICS INC.Inventors: Kabsung CHONG, Jongoh KIM, Youngtae KIM, Mizi YI, Kiwon HAN, Euntaek JEOUNG
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Publication number: 20130221910Abstract: The present invention provides a mobile terminal which, when wireless (contactless) charging of a battery is performed by approximating a transmission coil of a charging unit (charging pad) and a reception coil provided in a wireless charging module of a mobile terminal, can adjust the saturation magnetic flux density and eddy currents of a shield sheet to which the reception coil is attached, the shield sheet being provided in the wireless charging module. When the reception coil is placed on the shield sheet to perform wireless charging, the saturation magnetic flux density and eddy current generation in the shield sheet are adjusted for wireless charging purpose because a part of the region in which the magnetic flux density is most quickly saturated was clipped off from the shield sheet. Thus, charging efficiency can be increased, and the problem of heat generation of the shield sheet can be effectively.Type: ApplicationFiled: August 30, 2012Publication date: August 29, 2013Inventors: Youngtae KIM, Kiwon Han, Kabsung Chong, Mizi Yi
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Publication number: 20120161697Abstract: A mobile terminal is provided that includes a body to be mountable to a first charging apparatus, a current generator to generate an induction current by using a current of the first charging apparatus, and a wireless charger between the current generator and the battery to charge the battery by converting the induction current into a direct current. The mobile terminal may also include a connection port to be electrically connected to the battery and being connectable to a power supply terminal of a second charging apparatus, and a power charging controller to disconnect an electrically connected status between the wireless charger and the battery when the power supply terminal is electrically connected to the connection port.Type: ApplicationFiled: December 14, 2011Publication date: June 28, 2012Inventors: Sekwon PARK, Kiwon Han, Janggeun Oh
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Publication number: 20110141768Abstract: A high brightness light panel is provided. The light panel includes a fixing frame, a light reflective plate, a lighting unit, and an external electrode holder. The fixing frame forms an outer frame. The light reflective plate is installed in the fixing frame. The lighting unit has at least one or more External Electrode Fluorescent Lamps (EEFLs) spaced apart and arranged in parallel and forming one unit lamp group. The external electrode holder is sliding-inserted and installed along a length direction of the fixing frame, and has sockets installed therein and fixing-supporting external electrodes of the EEFLs.Type: ApplicationFiled: November 24, 2010Publication date: June 16, 2011Inventors: Kihyun JEON, Kiwon HAN, Cheolyong CHOE
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Patent number: 7592488Abstract: The present invention relates to a method of preparing optically active amines and chiral amines prepared thereby. The method includes reacting an amine compound, a metal catalyst, a biocatalyst including a lipase, and an acyl donor compound in an organic solvent to obtain a chiral amide compound, and then hydrolyzing the chiral amide compound to obtain a chiral amine.Type: GrantFiled: August 18, 2007Date of Patent: September 22, 2009Assignee: Postech Academy-Industry FoundationInventors: Mahn-Joo Kim, Jaiwook Park, Won-Hee Kim, Kiwon Han, Yoon Kyung Choi
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Publication number: 20090035830Abstract: The present invention relates to a method of preparing optically active amines and chiral amines prepared thereby. The method includes reacting an amine compound, a metal catalyst, a biocatalyst including a lipase, and an acyl donor compound in an organic solvent to obtain a chiral amide compound, and then hydrolyzing the chiral amide compound to obtain a chiral amine.Type: ApplicationFiled: August 18, 2007Publication date: February 5, 2009Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Mahn-Joo Kim, Jaiwook Park, Won-Hee Kim, Kiwon Han, Yoon Kyung Choi