Patents by Inventor Ho-Joon Shin
Ho-Joon Shin 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: 20240105686Abstract: A display panel including a circuit board having pads, light emitting devices electrically connected to the pads and arranged on the circuit board, each light emitting device having a first surface facing the circuit board and a second surface opposite to the first surface, a buffer material layer disposed between the circuit board and the light emitting devices to fill a space between the circuit board and the light emitting devices, and a cover layer covering the second surface of the light emitting devices, in which the buffer material layer is disposed under the first surfaces of the light emitting devices and has grooves in a region between adjacent light emitting devices, a portion of a top surface of the buffer material layer is disposed between adjacent light emitting devices, and the cover layer fills the grooves of the buffer material layer.Type: ApplicationFiled: December 11, 2023Publication date: March 28, 2024Applicant: Seoul Viosys Co., Ltd.Inventors: Seong Kyu JANG, Seom Geun LEE, Chan Seob SHIN, Ho Joon LEE
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Publication number: 20240067023Abstract: A hybrid charging device includes an alternating current (AC)-direct current (DC) converter for converting an AC input power to a first DC power; a DC-DC converter for converting a DC input power to a second DC power; a power combiner for generating a charge power for an electric vehicle from at least one of the first DC power or the second DC power; and a charge controller for controlling the AC-DC converter, the DC-DC converter and the power combiner.Type: ApplicationFiled: August 26, 2022Publication date: February 29, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Seung-Kyu YOON, Ho-Seung HAN, Young-joon SHIN
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Publication number: 20230092257Abstract: Provided is a bonding apparatus including a first wafer supplier including a plurality of load ports configured to store wafers having different sizes, the wafers including a plurality of substrate wafers and a plurality of die supply wafers, a first transferer adjacent to the first wafer supplier and configured to transfer the wafers, a first bonding device and a second bonding device facing the first wafer supplier, and configured to receive the wafers from the first wafer supplier and perform bonding, and a first cleaner comprising a plurality of cleaning areas, each of which is configured to receive the plurality of substrate wafers and the plurality of die supply wafers by the first transferer, and clean the plurality of substrate wafers and the plurality of die supply wafers.Type: ApplicationFiled: August 17, 2022Publication date: March 23, 2023Applicant: HANWHA PRECISION MACHINERY CO., LTD.Inventors: Tae Woo KANG, Ho Joon Shin
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Publication number: 20220378173Abstract: Mascara according to the present invention includes: a handle; a brush rod extended from one side of the handle; and a tip member provided at one end of the brush rod, in which the tip member includes a base part shaped like a pillar, and a plurality of protruding parts protruding from an outer circumferential surface of the base part, and the base part and the protruding part are made of a metal material.Type: ApplicationFiled: August 12, 2022Publication date: December 1, 2022Applicant: LG HOUSEHOLD & HEALTH CARE LTD.Inventors: Ho Joon SHIN, Yong Uk CHOI, Gu Yong LEE
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Patent number: 11403894Abstract: Disclosed herein is a fault diagnosis apparatus of a rapid charging system for a vehicle including an external device configured to exchange power with a vehicle battery, a power transfer unit including a three-phase motor, an inverter connected to the battery in parallel and connected to the three-phase motor, and one or more relays connected to the three-phase motor and configured to transfer power between the external device and the battery, and a controller configured to control the on and off functions of the relay, to control driving of the inverter to generate voltages applied to one end of each of the relays, and to diagnose fault of relays by comparing voltages of both ends of the relays while turning the relays on/off.Type: GrantFiled: April 22, 2019Date of Patent: August 2, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Ho Joon Shin, Nam Koo Han, Sang Yoo Lee, Heon Young Kwak, Hong Geuk Park
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Patent number: 11351870Abstract: A fault diagnosis method of a power electric system for a vehicle may include driving an inverter to output an output voltage command for fault detection; measuring a current input to each phase of a motor connected to the inverter; measuring a voltage of the neutral stage of the motor; and determining whether there are faults of a connection member connecting between the inverter and the motor and a relay connected to the neutral stage of the motor based on the measured current input to each phase of the motor and the voltage of the neutral stage.Type: GrantFiled: October 17, 2019Date of Patent: June 7, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Ho Joon Shin, Nam Koo Han, Sang Yoo Lee, Heon Young Kwak, Hong Geuk Park
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Patent number: 11329595Abstract: An error determining apparatus of a driving device including a motor and a 3-phase inverter supplying power to the motor through a 3-phase cable may include a resistor provided in each phase of the 3-phase cable, a voltage sensing device sensing voltage of opposite ends of the resistor by a current flowing into the resistor, and a sensing controller determining whether the resistor is faulty or whether the 3-phase cable is opened, based on the sensing voltage of the voltage sensing device and a 3-phase current sum of the 3-phase inverter.Type: GrantFiled: November 20, 2020Date of Patent: May 10, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Ho Joon Shin, Heon Young Kwak, Hong Geuk Park
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Publication number: 20210384861Abstract: An error determining apparatus of a driving device including a motor and a 3-phase inverter supplying power to the motor through a 3-phase cable may include a resistor provided in each phase of the 3-phase cable, a voltage sensing device sensing voltage of opposite ends of the resistor by a current flowing into the resistor, and a sensing controller determining whether the resistor is faulty or whether the 3-phase cable is opened, based on the sensing voltage of the voltage sensing device and a 3-phase current sum of the 3-phase inverter.Type: ApplicationFiled: November 20, 2020Publication date: December 9, 2021Inventors: Ho Joon Shin, Heon Young Kwak, Hong Geuk Park
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Patent number: 11167656Abstract: A charging system configured for reducing a leakage current may include an on board charger (OBC) receiving an alternating current (AC) power supplied from an external source to charge a vehicle battery with the AC power; at least an electric component connected to an output end portion of the OBC; at least a switch selectively connecting the electric component to or from a ground; and a controller connected to the at least a switch and reducing the leakage current flowing to the ground by controlling the switch connected to the electric component depending on whether or not the vehicle battery is charged with the AC power.Type: GrantFiled: May 23, 2019Date of Patent: November 9, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Ho Joon Shin, Nam Koo Han, Sang Yoo Lee, Heon Young Kwak, Hong Geuk Park
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Patent number: 11095245Abstract: An apparatus for controlling an inverter to drive a motor includes: a current control processor generating a voltage command for generating d/q axis current detection values, which are obtained by measuring current supplied to the motor, to follow a d/q axis current command for driving the motor, the current control processor converting the voltage command, which is sampled according to a sampling frequency generated based on a voltage vector phase of the voltage command, into a voltage vector corresponding to a point on each vertex and each side of a hexagon in a voltage vector diagram to apply a resulting value to the inverter driving the motor; and a sample frequency computing processor computing the sampling frequency based on the voltage vector phase of the voltage command and a reference number of sampling times during one rotation period of the motor.Type: GrantFiled: November 26, 2018Date of Patent: August 17, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Yong Jae Lee, Mu Shin Kwak, Joo Young Park, Jae Ho Hwang, Ho Joon Shin, Sung Kyu Kim, Su Hyun Bae
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Patent number: 10948541Abstract: A system for diagnosing switching element selectively connecting Y-capacitors to ground is provided. The state of a switching device in a power conversion circuit is adjusted such that voltages of different levels are applied to the Y-capacitors, respectively. Therefore, a Y-capacitor disconnect switch which connects a plurality of Y-capacitors connected in common to a DC link to chassis ground is diagnosed.Type: GrantFiled: October 16, 2019Date of Patent: March 16, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Ho Joon Shin, Nam Koo Han, Sang Yoo Lee, Heon Young Kwak, Hong Geuk Park
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Patent number: 10875407Abstract: A method and a system for driving a hybrid vehicle are provided for determining whether the hybrid vehicle is driven in a sensorless control mode or not by estimating a rotor position value based on electric current and voltage of a drive motor. Such a hybrid vehicle is capable of controlling the drive motor to operate by using a transmission in an area in which precise torque control of the drive motor is possible, without using information detected by a stator position sensor provided in the drive motor of the hybrid vehicle. Accordingly, a drive motor control precision is improved when a rotor position sensor does not operate normally, thereby preventing a vehicle shutdown from occurring.Type: GrantFiled: October 29, 2018Date of Patent: December 29, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Ho Joon Shin, Chae Duck Chon, HeonYoung Kwak
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Patent number: 10857898Abstract: A charging system for a vehicle includes: a power transmitter transmitting power for charging a battery of a vehicle; a charger including a three-phase motor and inverter, and receiving the power from the power transmitter; an input voltage calculating processor selecting any one of a plurality of predetermined duty ratios and calculating a value of an input voltage supplied to the charger based on the selected duty ratio and a voltage value of the battery of the vehicle; an input current calculating processor calculating a value of an input current based on the calculated value of the input voltage and a value of the power transmitted by the power transmitter; a power transmission controller instructing the calculated input current to be input to the charger; and a charging controller instructing the battery of the vehicle to be charged.Type: GrantFiled: October 23, 2018Date of Patent: December 8, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Ho Joon Shin, Joo Young Park, Yong Jae Lee, Sung Kyu Kim, Su Hyun Bae
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Publication number: 20200341061Abstract: A system for diagnosing switching element selectively connecting Y-capacitors to ground is provided. The state of a switching device in a power conversion circuit is adjusted such that voltages of different levels are applied to the Y-capacitors, respectively. Therefore, a Y-capacitor disconnect switch which connects a plurality of Y-capacitors connected in common to a DC link to chassis ground is diagnosed.Type: ApplicationFiled: October 16, 2019Publication date: October 29, 2020Inventors: Ho Joon Shin, Nam Koo Han, Sang Yoo Lee, Heon Young Kwak, Hong Geuk Park
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Patent number: 10778134Abstract: An apparatus for controlling an inverter for driving a motor includes a processor which includes: a current processor for generating a voltage command for causing a current detection value obtained by measuring a current supplied from the inverter to the motor to follow a current command for driving the motor; a voltage modulator for generating a pulse width modulation signal for controlling on and off states of switching elements in the inverter with a predetermined switching frequency based on the voltage command; and a frequency determining processor for setting a frequency change range within which the switching frequency will be randomly changed and randomly determining the switching frequency within the frequency change range when a random pulse width modulation method is applied to control of the inverter.Type: GrantFiled: December 4, 2018Date of Patent: September 15, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sung Kyu Kim, Yong Jae Lee, Su Hyun Bae, Ho Joon Shin, Tae Won Ha, Joo Young Park
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Patent number: 10771003Abstract: An apparatus for controlling an inverter for a motor driving includes: a current controller configured to generate a d/q-axis voltage reference for allowing a d/q-axis current detection value, which is obtained by measuring a current supplied from the inverter to the motor, to converge on the d/q-axis current reference for driving the motor, and a voltage modulator configured to control switching of the inverter by selectively applying one among a plurality of predetermined pulse width modulations (PWM) based on a point at which the d/q-axis voltage reference is located in a hexagonal space voltage vector diagram.Type: GrantFiled: November 20, 2018Date of Patent: September 8, 2020Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Yong Jae Lee, Joo Young Park, Ho Joon Shin, Sung Kyu Kim, Su Hyun Bae
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Patent number: 10763771Abstract: A method and a system for controlling a motor for a vehicle are provided. The vehicle is capable of being continuously driven by controlling the motor based on position information of a rotor derived using a sensorless estimation algorithm in the event of a failure of a position sensor of a motor rotor while the vehicle is being driven.Type: GrantFiled: October 9, 2018Date of Patent: September 1, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Heon Young Kwak, Chae Duck Chon, Ho Joon Shin
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Publication number: 20200187628Abstract: Mascara according to the present invention includes: a handle; a brush rod extended from one side of the handle; and a tip member provided at one end of the brush rod, in which the tip member includes a base part shaped like a pillar, and a plurality of protruding parts protruding from an outer circumferential surface of the base part, and the base part and the protruding part are made of a metal material.Type: ApplicationFiled: March 12, 2018Publication date: June 18, 2020Applicants: LG HOUSEHOLD & HEALTH CARE LTD., THEFACESHOP CO., LTD.Inventors: Ho Joon SHIN, Yong Uk CHOI, Gu Yong LEE
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Publication number: 20200180461Abstract: A charging system configured for reducing a leakage current may include an on board charger (OBC) receiving an alternating current (AC) power supplied from an external source to charge a vehicle battery with the AC power; at least an electric component connected to an output end portion of the OBC; at least a switch selectively connecting the electric component to or from a ground; and a controller connected to the at least a switch and reducing the leakage current flowing to the ground by controlling the switch connected to the electric component depending on whether or not the vehicle battery is charged with the AC power.Type: ApplicationFiled: May 23, 2019Publication date: June 11, 2020Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Ho Joon SHIN, Nam Koo HAN, Sang Yoo LEE, Heon Young KWAK, Hong Geuk PARK
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Publication number: 20200180438Abstract: A fault diagnosis method of a power electric system for a vehicle may include driving an inverter to output an output voltage command for fault detection; measuring a current input to each phase of a motor connected to the inverter; measuring a voltage of the neutral stage of the motor; and determining whether there are faults of a connection member connecting between the inverter and the motor and a relay connected to the neutral stage of the motor based on the measured current input to each phase of the motor and the voltage of the neutral stage.Type: ApplicationFiled: October 17, 2019Publication date: June 11, 2020Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Ho Joon Shin, Nam Koo Han, Sang Yoo Lee, Heon Young Kwak, Hong Geuk Park