Patents by Inventor Nam Ju PARK
Nam Ju PARK 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: 11877373Abstract: A cooking apparatus and a control method thereof, and more particularly, technology for determining the type of vessel placed in the cooking apparatus and controlling power in response to a state change of the placed vessel or a temperature change of a coil. In accordance with one aspect, a cooking apparatus includes: a coil on which a vessel is placed, configured to form a magnetic field upon application of a current; a detection sensor configured to detect a magnitude of an input current applied differently according to a type of the vessel and a magnitude of an input voltage of the cooking apparatus; and a controller configured to determine a type of the placed vessel according to a power value calculated based on the detected input current and input voltage, and to determine a heating mode of the cooking apparatus based on the determined type of vessel.Type: GrantFiled: May 24, 2019Date of Patent: January 16, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji Woong Choi, Sang Min Park, Byoung Kuk Lee, Eun Soo Jang, Dong Myoung Joo, Hong-Joo Kang, Nam Ju Park, Chang Sun Yun, Hyun Kwan Lee
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Patent number: 11622422Abstract: The present disclosure relates to a cooking apparatus and a method of controlling the same, and more particularly, to a technology for reducing stress caused by a current flowing through a diode included in the cooking apparatus.Type: GrantFiled: November 22, 2018Date of Patent: April 4, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Nam Ju Park, Ji Woong Choi, Hyun Kwan Lee
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Patent number: 11317479Abstract: Disclosed herein is a cooking apparatus. The cooking apparatus includes a cooking plate, a plurality of induction heating coils installed under the cooking plate, a plurality of drivers configured to supply driving power to the plurality of induction heating coils, and a controller configured to control the plurality of drivers to drive a plurality of groups to which the plurality of induction heating coils belong, respectively. Power output by a first driver, among the plurality of drivers, which drives a first group among the plurality of groups may be increased and power output by a second driver, among the plurality of drivers, which drives a second group among the plurality of groups may be decreased.Type: GrantFiled: April 25, 2018Date of Patent: April 26, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nam Ju Park, Chang Sun Yun, Ji Woong Choi
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Publication number: 20210267024Abstract: A cooking apparatus and a control method thereof, and more particularly, technology for determining the type of vessel placed in the cooking apparatus and controlling power in response to a state change of the placed vessel or a temperature change of a coil. In accordance with one aspect, a cooking apparatus includes: a coil on which a vessel is placed, configured to form a magnetic field upon application of a current; a detection sensor configured to detect a magnitude of an input current applied differently according to a type of the vessel and a magnitude of an input voltage of the cooking apparatus; and a controller configured to determine a type of the placed vessel according to a power value calculated based on the detected input current and input voltage, and to determine a heating mode of the cooking apparatus based on the determined type of vessel.Type: ApplicationFiled: May 24, 2019Publication date: August 26, 2021Applicants: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Ji Woong CHOI, Sang Min PARK, Byoung Kuk LEE, Eun Soo JANG, Dong Myoung JOO, Hong-Joo KANG, Nam Ju PARK, Chang Sun YUN, Hyun Kwan LEE
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Publication number: 20200374988Abstract: The present disclosure relates to a cooking apparatus and a method of controlling the same, and more particularly, to a technology for reducing stress caused by a current flowing through a diode included in the cooking apparatus.Type: ApplicationFiled: November 22, 2018Publication date: November 26, 2020Inventors: Nam Ju PARK, Ji Woong CHOI, Hyun Kwan LEE
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Patent number: 10813177Abstract: A cooking apparatus includes a coil configured to generate a magnetic field, a driver including a first switch and a second switch and configured to change a direction of the current, a current detector configured to detect the current of the coil, a controller configured to increase a duty cycle of the first switch during a reference time when an operation start signal is transmitted thereto, control operations of the first switch and the second switch on the basis of an operating frequency when the reference time elapses, check zero cross points of currents detected while the first switch and the second switch are operated, compare a time point of the checked zero cross point to a starting time point of an turn-on operation of the first switch to determine a material of the vessel, and block the applied current when the vessel is determined to be a non-heatable vessel.Type: GrantFiled: August 31, 2017Date of Patent: October 20, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nam Ju Park, Ji Woong Choi, Sang Hyun Kang, Se Bin Im
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Publication number: 20180317284Abstract: Disclosed herein is a cooking apparatus. The cooking apparatus includes a cooking plate, a plurality of induction heating coils installed under the cooking plate, a plurality of drivers configured to supply driving power to the plurality of induction heating coils, and a controller configured to control the plurality of drivers to drive a plurality of groups to which the plurality of induction heating coils belong, respectively. Power output by a first driver, among the plurality of drivers, which drives a first group among the plurality of groups may be increased and power output by a second driver, among the plurality of drivers, which drives a second group among the plurality of groups may be decreased.Type: ApplicationFiled: April 25, 2018Publication date: November 1, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nam Ju PARK, Chang Sun YUN, Ji Woong CHOI
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Publication number: 20180063897Abstract: A cooking apparatus includes a coil configured to generate a magnetic field, a driver including a first switch and a second switch and configured to change a direction of the current, a current detector configured to detect the current of the coil, a controller configured to increase a duty cycle of the first switch during a reference time when an operation start signal is transmitted thereto, control operations of the first switch and the second switch on the basis of an operating frequency when the reference time elapses, check zero cross points of currents detected while the first switch and the second switch are operated, compare a time point of the checked zero cross point to a starting time point of an turn-on operation of the first switch to determine a material of the vessel, and block the applied current when the vessel is determined to be a non-heatable vessel.Type: ApplicationFiled: August 31, 2017Publication date: March 1, 2018Applicant: Samsung Electronics Co., Ltd.Inventors: Nam Ju PARK, Ji Woong Choi, Sang Hyun Kang, Se Bin Im
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Patent number: 9170047Abstract: A storage container with a sensor device to detect a state of food contained in the storage container and a refrigerator having the same. The sensor device is separably mounted to the storage container. The sensor device includes an electrode terminal usable not only to achieve a charging operation, but also to achieve a salinity measuring operation. Thus, the sensor device has user convenience while having a compact size.Type: GrantFiled: June 21, 2011Date of Patent: October 27, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nam Ju Park, Kwon Chul Yun, Man Soon Im, Jeong Su Han, Hyo Sang Lee, Ji Hoon Ha
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Patent number: 8963564Abstract: A salinity measuring apparatus to determine salinity of food includes a salinity sensing unit including a pair of measuring electrodes and a capacitor, a switching unit to switch a voltage of the capacitor of the salinity sensing unit, and a control unit to provide a pulse signal with a constant frequency to the switching unit and to determine the salinity of the food which is in contact with the measuring electrodes of the salinity sensing unit based on when the voltage of the capacitor reaches a reference voltage. By providing the pulse signal with the constant frequency to the switching unit, it is possible to minimize the internal impedance variation of the capacitor and to more accurately measure the salinity of the food. Since a period when the voltage of the capacitor is substantially “0” is present, it is possible to minimize accumulation of ions in the measuring electrodes.Type: GrantFiled: June 16, 2011Date of Patent: February 24, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Nam Ju Park, Jeong Su Han, Hyo Sang Lee
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Publication number: 20110316564Abstract: A salinity measuring apparatus to determine salinity of food includes a salinity sensing unit including a pair of measuring electrodes and a capacitor, a switching unit to switch a voltage of the capacitor of the salinity sensing unit, and a control unit to provide a pulse signal with a constant frequency to the switching unit and to determine the salinity of the food which is in contact with the measuring electrodes of the salinity sensing unit based on when the voltage of the capacitor reaches a reference voltage. By providing the pulse signal with the constant frequency to the switching unit, it is possible to minimize the internal impedance variation of the capacitor and to more accurately measure the salinity of the food. Since a period when the voltage of the capacitor is substantially “0” is present, it is possible to minimize accumulation of ions in the measuring electrodes.Type: ApplicationFiled: June 16, 2011Publication date: December 29, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nam Ju Park, Jeong Su Han, Hyo Sang Lee
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Publication number: 20110314849Abstract: A storage container with a sensor device to detect a state of food contained in the storage container and a refrigerator having the same. The sensor device is separably mounted to the storage container. The sensor device includes an electrode terminal usable not only to achieve a charging operation, but also to achieve a salinity measuring operation. Thus, the sensor device has user convenience while having a compact size.Type: ApplicationFiled: June 21, 2011Publication date: December 29, 2011Applicant: Samsung Electronics Co., LTD.Inventors: Nam Ju PARK, Kwon Chul YUN, Man Soon IM, Jeong Su HAN, Hyo Sang LEE, Ji Hoon HA
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Patent number: D873672Type: GrantFiled: July 12, 2018Date of Patent: January 28, 2020Assignee: TONGIL POCKET CASE CO., LTDInventors: Nam Ju Park, Jae Sang Park