Patents by Inventor Se-Joo Kim

Se-Joo Kim 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).

  • Patent number: 10892647
    Abstract: A wireless power transmitter having a data transmission and reception capability is disclosed. The wireless power transmitter includes a main coil to transmit power, an inverter to apply an alternating current (AC) signal to the main coil, a communication module to output a transmission signal including transmission data to be wirelessly transmitted the wireless power transmitter, and/or receive a reception signal including received data wirelessly received by the wireless power transmitter, a first connecting circuitry to prevent a power signal of the main coil from being input to the communication module, and the auxiliary coil to connect to the main coil and connected to the first connecting circuitry. The main coil or the auxiliary coil may be configured to transmit the transmission data and receive the reception signal, and the auxiliary coil may be wiredly connected to the main coil or not wiredly connected to the main coil.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: January 12, 2021
    Assignee: WITS Co., Ltd.
    Inventors: Se Joo Kim, Jung Woo Choi, Tae Seok Ko, Byoung Woo Ryu
  • Patent number: 10886783
    Abstract: A wireless power transmission apparatus includes: an alternating current (AC) power output to convert input power into AC power and output the AC power; and a power transmitter including a plurality of resonators. The power transmitter receives the AC power and wirelessly transmits the AC power in a first operating mode in which two of the resonators are connected in series and the two resonators transmit the AC power, and in a second operating mode in which one of the resonators transmits the AC power.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: January 5, 2021
    Assignee: WITS Co., Ltd.
    Inventors: Se Joo Kim, Tae Seok Ko, Young Woon Choi, Joung Ho Son, Doo Young Song
  • Patent number: 10749381
    Abstract: A wireless power transmission device including a resonant circuit magnetically coupled to a wireless power reception device and being configured to wirelessly transmit power, an alternating current (AC) generator including switches and being configured to receive a direct current (DC) voltage and to generate an AC current, according to a switching operation of the switches, to be supplied to the resonant circuit, and a variable capacitor connected to an output terminal of the AC generator and having a first capacitance, when a load state of the wireless power reception device is provided as a full load state and a second capacitance lower than the first capacitance, when the load state is provided as a light load state.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: August 18, 2020
    Assignee: WITS Co., Ltd.
    Inventors: Dong Woo Han, Byoung Woo Ryu, Hyo Young Kim, Se Joo Kim, Young Seung Roh
  • Patent number: 10516446
    Abstract: A wireless power transmitter includes a switch circuit including switches connected to a transmission resonator; a current detector configured to detect a transient current induced in the transmission resonator; and a controller configured to control the switch circuit and adjust an output of the wireless power transmitter based on an amplitude of the transient current.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: December 24, 2019
    Assignee: WITS Co., Ltd.
    Inventors: In Wha Jeong, Young Woon Choi, Se Joo Kim
  • Publication number: 20190222065
    Abstract: A wireless power transmission apparatus includes: an alternating current (AC) power output to convert input power into AC power and output the AC power; and a power transmitter including a plurality of resonators. The power transmitter receives the AC power and wirelessly transmits the AC power in a first operating mode in which two of the resonators are connected in series and the two resonators transmit the AC power, and in a second operating mode in which one of the resonators transmits the AC power.
    Type: Application
    Filed: October 15, 2018
    Publication date: July 18, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Se Joo KIM, Tae Seok KO, Young Woon CHOI, Joung Ho SON, Doo Young SONG
  • Publication number: 20190148980
    Abstract: A wireless power transmitter having a data transmission and reception capability is disclosed. The wireless power transmitter includes a main coil to transmit power, an inverter to apply an alternating current (AC) signal to the main coil, a communication module to output a transmission signal including transmission data to be wirelessly transmitted the wireless power transmitter, and/or receive a reception signal including received data wirelessly received by the wireless power transmitter, a first connecting circuitry to prevent a power signal of the main coil from being input to the communication module, and the auxiliary coil to connect to the main coil and connected to the first connecting circuitry. The main coil or the auxiliary coil may be configured to transmit the transmission data and receive the reception signal, and the auxiliary coil may be wiredly connected to the main coil or not wiredly connected to the main coil.
    Type: Application
    Filed: September 20, 2018
    Publication date: May 16, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Se Joo KIM, Jung Woo CHOI, Tae Seok KO, Byoung Woo RYU
  • Patent number: 10277074
    Abstract: A wireless power transmitter includes a common bridge circuit configured to apply a first alternating current (AC) voltage to a terminal of each of a first resonator and a second resonator of the resonators, a first sub-bridge circuit configured to apply a second alternating current (AC) voltage to another terminal of the first resonator while the first alternating current (AC) voltage is being applied to the terminal of the first resonator, and a second sub-bridge circuit configured to apply a third alternating current (AC) voltage to another terminal of the second resonator while the first alternating current (AC) voltage is being applied to the terminal of the first resonator.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: April 30, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Se Joo Kim, Sang Ho Cho, Hyo Young Kim, In Wha Jeong, Ki Hong Kim, Young Woon Choi
  • Publication number: 20180294675
    Abstract: A wireless power transmission device including a resonant circuit magnetically coupled to a wireless power reception device and being configured to wirelessly transmit power, an alternating current (AC) generator including switches and being configured to receive a direct current (DC) voltage and to generate an AC current, according to a switching operation of the switches, to be supplied to the resonant circuit, and a variable capacitor connected to an output terminal of the AC generator and having a first capacitance, when a load state of the wireless power reception device is provided as a full load state and a second capacitance lower than the first capacitance, when the load state is provided as a light load state.
    Type: Application
    Filed: November 2, 2017
    Publication date: October 11, 2018
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dong Woo HAN, Byoung Woo RYU, Hyo Young KIM, Se Joo KIM, Young Seung ROH
  • Publication number: 20180205269
    Abstract: A wireless power transmission device includes a power amplifier, a detection device, and a control unit. The power amplifier is configured to receive a direct current (DC) voltage and supply an alternating current (AC) power current to a transmission resonator by performing a switching operation. The detection device is configured to detect a voltage of an output terminal of the power amplifier based on the switching operation. The control unit is configured to detect an external object based on a change in the voltage, and control an output of the power amplifier in response to the change.
    Type: Application
    Filed: November 3, 2017
    Publication date: July 19, 2018
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Dong Woo HAN, Byoung Woo RYU, Young Seung ROH, Se Joo KIM
  • Publication number: 20180083669
    Abstract: A wireless power transmitter includes a switch circuit including switches connected to a transmission resonator; a current detector configured to detect a transient current induced in the transmission resonator; and a controller configured to control the switch circuit and adjust an output of the wireless power transmitter based on an amplitude of the transient current.
    Type: Application
    Filed: August 25, 2017
    Publication date: March 22, 2018
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: In Wha JEONG, Young Woon CHOI, Se Joo KIM
  • Patent number: 9823006
    Abstract: The disclosure includes a water tray member receiving raw water for ice-making from a water tank, an ice making unit cooling the raw water received in the water tray member and forming ice, a heating unit heating the raw water received in the water tray member, and a control unit controlling an operation of the heating unit such that the raw water received in the water tray member is heated before the ice making unit cools the raw water in the water tray member. According to the ice maker, the temperature of the raw water received in an ice-making water tray is raised to a preset temperature at the initial stage of an ice making process, thereby preventing the formation of an opaque layer in the central portion of ice.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: November 21, 2017
    Assignee: Conway Co., Ltd
    Inventor: Se-Joo Kim
  • Publication number: 20170271923
    Abstract: A wireless power transmitter includes a common bridge circuit configured to apply a first alternating current (AC) voltage to a terminal of each of a first resonator and a second resonator of the resonators, a first sub-bridge circuit configured to apply a second alternating current (AC) voltage to another terminal of the first resonator while the first alternating current (AC) voltage is being applied to the terminal of the first resonator, and a second sub-bridge circuit configured to apply a third alternating current (AC) voltage to another terminal of the second resonator while the first alternating current (AC) voltage is being applied to the terminal of the first resonator.
    Type: Application
    Filed: December 29, 2016
    Publication date: September 21, 2017
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Se Joo KIM, Sang Ho CHO, Hyo Young KIM, In Wha JEONG, Ki Hong KIM, Young Woon CHOI
  • Publication number: 20170115044
    Abstract: There is provided an ice maker having an immersion type ice making unit, and a method of controlling the same. The ice maker includes a water tray member receiving raw water for ice-making from a water tank, an ice making unit cooling the raw water received in the water tray member and forming ice, a heating unit heating the raw water received in the water tray member, and a control unit controlling an operation of the heating unit such that the raw water received in the water tray member is heated before the ice making unit cools the raw water in the water tray member. According to the ice maker, the temperature of the raw water received in an ice-making water tray is raised to a preset temperature at the initial stage of an ice making process, thereby preventing the formation of an opaque layer in the central portion of ice.
    Type: Application
    Filed: November 14, 2016
    Publication date: April 27, 2017
    Inventor: Se-Joo KIM
  • Patent number: 9528738
    Abstract: The disclosure includes a water tray member receiving raw water for ice-making from a water tank, an ice making unit cooling the raw water received in the water tray member and forming ice, a heating unit heating the raw water received in the water tray member, and a control unit controlling an operation of the heating unit such that the raw water received in the water tray member is heated before the ice making unit cools the raw water in the water tray member. According to the ice maker, the temperature of the raw water received in an ice-making water tray is raised to a preset temperature at the initial stage of an ice making process, thereby preventing the formation of an opaque layer in the central portion of ice.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: December 27, 2016
    Assignee: Woongjin Coway Co., Ltd
    Inventor: Se-Joo Kim
  • Patent number: 9059656
    Abstract: Disclosed herein are a switching control apparatus for a two phase switch reluctance motor and a control method using the same. The switching control apparatus includes a rectifier; and an active converter including a pair of common switches, a pair of first phase switches, a pair of serially connected second phase switches, a plurality of current feedback diodes each connected to the switches, and a pair of drivers controlling the switches and operated as operation modes 1 to 3 to provide the commercial power provided from the rectifier to the two phase SRM and drive the two phase SRMs.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: June 16, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Guen Hong Lee, Han Kyung Bae, Hyung Joon Kim, Se Joo Kim
  • Patent number: 8866355
    Abstract: Disclosed herein is a switched reluctance motor including: a rotor part including a rotor core having a shaft fixedly coupled to the center thereof and a plurality of rotor poles formed to be protruded from the rotor core; a stator part having the rotor part rotatably received therein and a plurality of stator salient poles formed to be protruded from the stator yoke; a balancing part selectively coupled to an upper portion or a lower portion of the rotor part and having a plurality of sensing grooves formed in an outer peripheral surface thereof; a motor housing provided with an opening part through which the shaft penetrates; and a position detecting unit disposed between the rotor part and the stator part and coupled to an inner portion of the motor housing.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: October 21, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Ho Yun, Se Joo Kim, Hyung Joon Kim, Jin Wook Baek
  • Patent number: 8633628
    Abstract: Disclosed herein is a switched reluctance motor including: a salient pole type stator that includes a plurality of teeth having a coil wound therearound and a magnet mounted between the teeth; and a salient pole type rotor that is inserted into a central portion of the stator and rotates, wherein the magnet is mounted between the teeth having the coil wound therearound.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: January 21, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sung Tai Jung, Han Kyung Bae, Jung Kyu Yim, Ki Young Lee, Hae Jun Yang, Se Joo Kim
  • Publication number: 20130300328
    Abstract: Disclosed herein are a switching control apparatus for two phase switched reluctance motor and a method thereof. The switching control apparatus includes a rectifier rectifying commercial power; and an active converter including a pair of common switches commonly connected to two phase windings of two phase SRMs, a pair of first phase switches bridge-connected to the pair of common switches at any one of the two phase windings, a pair of second phase switches bridge-connected to the pair of common switches at the other one of the two phase windings, and a plurality of current feedback diodes each connected to the switches, wherein the active converter is operated in operation modes 1 to 3 to drive the two phase SRM.
    Type: Application
    Filed: August 31, 2012
    Publication date: November 14, 2013
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Se Joo Kim, Han Kyung BAE, Hyung Joon KIM, Hong Chul SHIN
  • Publication number: 20130293181
    Abstract: Disclosed herein are a switching control apparatus for a two phase switch reluctance motor and a control method using the same. The switching control apparatus includes a rectifier; and an active converter including a pair of common switches, a pair of first phase switches, a pair of serially connected second phase switches, a plurality of current feedback diodes each connected to the switches, and a pair of drivers controlling the switches and operated as operation modes 1 to 3 to provide the commercial power provided from the rectifier to the two phase SRM and drive the two phase SRMs.
    Type: Application
    Filed: February 11, 2013
    Publication date: November 7, 2013
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Guen Hong Lee, Han Kyung Bae, Hyung Joon Kim, Se Joo Kim
  • Publication number: 20130285498
    Abstract: Disclosed herein is a rotor of a brushless direct current motor including magnets, a core in which the magnets are accommodated, a rotating shaft inserted into the core, and a pair of cover members inserted into the rotating shaft to cover both ends of the core, respectively.
    Type: Application
    Filed: April 25, 2013
    Publication date: October 31, 2013
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hae Jun Yang, Se Joo Kim, Ki Young Lee, Han Kyung Bae