Patents by Inventor Jung-hwan Na

Jung-hwan Na 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).

  • Publication number: 20240116882
    Abstract: The present invention relates to a novel benzotriazole derivative compound, a tautomer thereof, a pharmaceutically acceptable salt thereof, a hydrate thereof, or a stereoisomer thereof, which are related to a compound for inhibiting ENPP1, a composition for inhibiting ENPP1, and a method for inhibiting ENPP1.
    Type: Application
    Filed: January 28, 2022
    Publication date: April 11, 2024
    Applicant: TXINNO BIOSCIENCE INC.
    Inventors: Chan Sun Park, Sung Joon Kim, Ali Imran, Yoo Jin Na, So Ra Paik, Jung Hwan Choi, Sun Woo Lee, Yong Yea Park, Ah Ran Yu, Sun Young Park
  • Publication number: 20230027941
    Abstract: A charging system for an electric vehicle that receives electric power from external charging equipment to charge a battery includes an inlet including a plurality of ports. The inlet is connectable to the external charging equipment. A charging management part includes a control pilot (CP) terminal for receiving a charging signal indicating information related to a charging power source of the external charging equipment through the inlet. The CP terminal includes a CP plus terminal connected to a CP port among the plurality of ports of the inlet. The CP plus terminal is configured to receive the charging signal. A CP minus terminal is directly connected to a ground port among the plurality of ports of the inlet. The CP minus terminal is configured to receive a ground potential of the external charging equipment.
    Type: Application
    Filed: April 27, 2022
    Publication date: January 26, 2023
    Inventors: Myoung Seok Lee, Soung Han Noh, Tae Hee Jung, Jung Hwan Na
  • Patent number: 10744893
    Abstract: A locking mechanism includes a drive motor; a locking member configured to perform a linear reciprocating motion along a predetermined movement path by the drive motor, and selectively locking or unlocking a predetermined object to be locked according to a position of the locking member on the movement path; a position sensor including a sensor gear rotatably driven by the drive motor and a variable resistor of which a resistance value is varied according to a rotation angle of the sensor gear; and a controller configured to determine an operating state of the locking member on the basis of a voltage value applied to the variable resistor.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: August 18, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jung Hwan Na, Myoung Seok Lee, Jee Hye Jeong
  • Patent number: 10712081
    Abstract: The present invention relates to a smart repository that can be used as a refrigerator or the like, the smart repository being characterized by comprising: a repository body having a door installed in an entrance/exit formed in a side surface thereof, the repository body containing an outer column that faces the entrance/exit and an inner column that communicates with the outer column through the upper and lower end portions thereof; multiple storing boxes provided to be contained and stacked inside the outer and inner columns; a plurality of vertical driving devices installed on the outer and inner columns, respectively, and driven so as to lift/lower the multiple storing boxes; an imaging portion comprising a plurality of push means for moving a box on the upper end portion of the inner column toward the outer column and moving a box on the lower end portion of the outer column toward the inner column, the imaging portion being configured to take an image of a to-be-stored object introduced through the door
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: July 14, 2020
    Assignee: SUNKANG EGS CO., LTD
    Inventor: Jung-Hwan Na
  • Publication number: 20190316836
    Abstract: The present invention relates to a smart repository that can be used as a refrigerator or the like, the smart repository being characterized by comprising: a repository body having a door installed in an entrance/exit formed in a side surface thereof, the repository body containing an outer column that faces the entrance/exit and an inner column that communicates with the outer column through the upper and lower end portions thereof; multiple storing boxes provided to be contained and stacked inside the outer and inner columns; a plurality of vertical driving devices installed on the outer and inner columns, respectively, and driven so as to lift/lower the multiple storing boxes; an imaging portion comprising a plurality of push means for moving a box on the upper end portion of the inner column toward the outer column and moving a box on the lower end portion of the outer column toward the inner column, the imaging portion being configured to take an image of a to-be-stored object introduced through the door
    Type: Application
    Filed: October 6, 2016
    Publication date: October 17, 2019
    Inventor: Jung-Hwan NA
  • Publication number: 20190176634
    Abstract: A locking mechanism includes a drive motor; a locking member configured to perform a linear reciprocating motion along a predetermined movement path by the drive motor, and selectively locking or unlocking a predetermined object to be locked according to a position of the locking member on the movement path; a position sensor including a sensor gear rotatably driven by the drive motor and a variable resistor of which a resistance value is varied according to a rotation angle of the sensor gear; and a controller configured to determine an operating state of the locking member on the basis of a voltage value applied to the variable resistor.
    Type: Application
    Filed: June 19, 2018
    Publication date: June 13, 2019
    Inventors: Jung Hwan Na, Myoung Seok Lee, Jee Hye Jeong
  • Patent number: 10232726
    Abstract: A control pilot (CP) signal detection method for a vehicle charger includes: counting CP signals based on signal levels of the CP signals during a set period of time, when an input of the CP signals is detected while an ignition of a vehicle is turned off; determining whether a count of high-level CP signals among the CP signals is within a reference range, when the set period of time elapses; and outputting state information of the CP signals based on the determination of whether the count of high-level CP signals is within the reference range.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: March 19, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jae Won Lee, Jung Hwan Na, Tae Hwan Chung
  • Patent number: 9878627
    Abstract: An apparatus for detecting a level of a control pilot signal includes: a switch controller configured to output a switch control signal using a control pilot input signal, which was outputted from an electric vehicle supply equipment; and a sample and hold logic unit configured to sample and hold the control pilot input signal, based on the outputted switch control signal, in order to output a control pilot output signal.
    Type: Grant
    Filed: February 14, 2015
    Date of Patent: January 30, 2018
    Assignee: Hyundai Motor Company
    Inventors: Jee Hye Jeong, Jae Won Lee, Jung Hwan Na
  • Patent number: 9544990
    Abstract: An analog control system configured to operate a converter in an electric vehicle battery charging system is provided. The analog control system includes a pulse width modulation (PWM) output unit that is configured to output a PWM signal to the converter and an integrated control unit that is configured to sense an input voltage and an output voltage of the converter. The analog control system may be implemented on a printed circuit board having a first ground voltage stage connected to the PWM output unit, a second ground voltage stage separated from the first ground voltage stage by a first predetermined interval and connected to the integrated control unit. A filtering unit is disposed between the first ground voltage stage and the second ground voltage stage to pass an output signal of a predetermined band from the PWM unit to the integrated control unit.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: January 10, 2017
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jung Hwan Na, Sang Hoon Kwak, Tae Hwan Chung, Gun Soo Kang
  • Patent number: 9400293
    Abstract: A voltage sensing circuit of a converter senses input and output voltages of a converter with only one sensing circuit. The voltage sensing circuit is capable of reducing the number of the components for a controller and the volume thereof to save cost, and detecting whether the discontinuous mode (DCM) is entered or not, thereby to apply a separate control algorithm thereto when the DCM is entered.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: July 26, 2016
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Jung Hwan Na, Tae Hwan Chung, Sang Hoon Kwak, Hyun Wook Seong
  • Publication number: 20160114689
    Abstract: An apparatus for detecting a level of a control pilot signal includes: a switch controller configured to output a switch control signal using a control pilot input signal, which was outputted from an electric vehicle supply equipment; and a sample and hold logic unit configured to sample and hold the control pilot input signal, based on the outputted switch control signal, in order to output a control pilot output signal.
    Type: Application
    Filed: February 14, 2015
    Publication date: April 28, 2016
    Inventors: Jee Hye Jeong, Jae Won Lee, Jung Hwan Na
  • Publication number: 20160105164
    Abstract: An apparatus for generating a switching signal for an analog controller includes: a voltage setting unit configured to set voltages Vref_high and Vref_low of a triangular wave; a period adjuster configured to adjust a period of the triangular wave; a triangular wave generator configured to generate the triangular wave at the period based on the voltages set by the voltage setting unit; and an AC component passing unit configured to pass an AC component of the triangular wave through a low voltage DC-DC converter (LDC) analog controller.
    Type: Application
    Filed: March 21, 2015
    Publication date: April 14, 2016
    Inventors: Jung Hwan Na, Jee Hye Jeong, Jae Won Lee, Tae Hwan Chung
  • Publication number: 20160096442
    Abstract: A control pilot (CP) signal detection method for a vehicle charger includes: counting CP signals based on signal levels of the CP signals during a set period of time, when an input of the CP signals is detected while an ignition of a vehicle is turned off; determining whether a count of high-level CP signals among the CP signals is within a reference range, when the set period of time elapses; and outputting state information of the CP signals based on the determination of whether the count of high-level CP signals is within the reference range.
    Type: Application
    Filed: June 17, 2015
    Publication date: April 7, 2016
    Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANY
    Inventors: Jae Won Lee, Jung Hwan Na, Tae Hwan Chung
  • Publication number: 20160023561
    Abstract: An analog control system configured to operate a converter in an electric vehicle battery charging system is provided. The analog control system includes a pulse width modulation (PWM) output unit that is configured to output a PWM signal to the converter and an integrated control unit that is configured to sense an input voltage and an output voltage of the converter. The analog control system may be implemented on a printed circuit board having a first ground voltage stage connected to the PWM output unit, a second ground voltage stage separated from the first ground voltage stage by a first predetermined interval and connected to the integrated control unit. A filtering unit is disposed between the first ground voltage stage and the second ground voltage stage to pass an output signal of a predetermined band from the PWM unit to the integrated control unit.
    Type: Application
    Filed: November 25, 2014
    Publication date: January 28, 2016
    Inventors: Jung Hwan Na, Sang Hoon Kwak, Tae Hwan Chung, Gun Soo Kang
  • Patent number: 8955000
    Abstract: A disc drive that includes: a housing configured to receive a tray, a pickup mounted on the tray; a connector installed on the housing for outputting signals obtained from the optical pickup; a ribbon cable that includes a first end which is connected to the connector, including a plurality of wire layers, and a part installed adjacent to a side of a body of the housing; and at least one penetration hole formed in a side of the body of the housing so as to reduce a capacitive coupling between the ribbon cable and the body of the housing.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: February 10, 2015
    Assignee: Toshiba Samsung Storage Technology Korea Corporation
    Inventors: Sang-hun Kim, Jung-hwan Na, Sang-hum Cho
  • Publication number: 20140354265
    Abstract: A voltage sensing circuit of a converter senses input and output voltages of a converter with only one sensing circuit. The voltage sensing circuit is capable of reducing the number of the components for a controller and the volume thereof to save cost, and detecting whether the discontinuous mode (DCM) is entered or not, thereby to apply a separate control algorithm thereto when the DCM is entered.
    Type: Application
    Filed: October 14, 2013
    Publication date: December 4, 2014
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Jung Hwan NA, Tae Hwan CHUNG, Sang Hoon KWAK, Hyun Wook SEONG
  • Publication number: 20120174127
    Abstract: A disc drive that includes: a housing configured to receive a tray, a pickup mounted on the tray; a connector installed on the housing for outputting signals obtained from the optical pickup; a ribbon cable that includes a first end which is connected to the connector, including a plurality of wire layers, and a part installed adjacent to a side of a body of the housing; and at least one penetration hole formed in a side of the body of the housing so as to reduce a capacitive coupling between the ribbon cable and the body of the housing.
    Type: Application
    Filed: November 14, 2011
    Publication date: July 5, 2012
    Inventors: Sang-hun Kim, Jung-hwan Na, Sang-hum Cho
  • Publication number: 20120174125
    Abstract: An optical disc drive is provided. The optical disc drive may include a housing, a tray that is received in the housing, an optical pickup device that is operatively coupled to the tray, connector that is installed in the housing and outputs a signal obtained from the optical pickup device, and a ribbon cable having an end portion connected to the connector, a fixed portion, and a movable portion folded so as not to be disposed parallel to the fixed portion.
    Type: Application
    Filed: September 23, 2011
    Publication date: July 5, 2012
    Inventors: Sang-hun KIM, Jung-hwan Na, Sang-hum Cho