Patents by Inventor Kwon Ho Lee
Kwon Ho Lee 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: 20240145019Abstract: A power source switching circuit for a memory device includes: a first power source voltage terminal for supplying a first power source voltage, a second power source voltage terminal for supplying a second power source voltage, a first metal-oxide-semiconductor field-effect transistor (MOSFET) and a second MOSFET connected in series with the first power source voltage terminal, a first level shifter connected to the first MOSFET and supplied with the first power source voltage, a second level shifter connected to the second MOSFET and supplied with the second power source voltage, a third MOSFET connected to the second MOSFET, and a third level shifter connected to the third MOSFET and supplied with a third power source voltage, and a memory cell of a non-volatile memory is programmed using the first power source voltage or the second power source voltage.Type: ApplicationFiled: June 7, 2023Publication date: May 2, 2024Applicant: Magnachip Semiconductor, Ltd.Inventors: Hyoung Kyu KIM, Il Jun KIM, Kwon Young OH, Sang Ho LEE
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Publication number: 20240083412Abstract: Disclosed is a hybrid electric vehicle and a method of controlling an engine stop for the vehicle. The method includes: determining whether a first condition and a second condition is satisfied; applying a negative torque to the motor when the first condition and the second condition are satisfied; predicting occurrence of reverse rotation of the engine; and applying a feedback torque for satisfying the target behavior of the engine to the motor when the occurrence of the reverse rotation is predicted.Type: ApplicationFiled: January 25, 2023Publication date: March 14, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Hyun Jin Park, Seo Ho Lee, Jae Young Choi, Kwon Chae Chung
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Publication number: 20240083410Abstract: Disclosed are a hybrid electric vehicle and a method for controlling an engine speed of a hybrid electric vehicle. In particular, the method includes: determining, when an engine on one end and a first motor are directly connected and while driving in a state where an engine clutch is connected and a second motor is connected to the other end, a compensation value based on the difference in the rotational speed of the engine and the second motor when a control entry is caused, which induces the rotational speed mismatch of the engine and the second motor; and compensating an output torque of the first motor based on the compensation value.Type: ApplicationFiled: January 25, 2023Publication date: March 14, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Seo Ho Lee, Hyun Jin Park, Jae Young Choi, Kwon Chae Chung
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Patent number: 11904933Abstract: According to a steering column for a vehicle according to the present embodiments, a wide convenient space can be secured for a driver in a teles-in state by increasing a teles-stroke while securing an installation space for the steering column, the installation of the steering column is spatially convenient despite the increased teles-stroke, and a teles operation can be quickly performed without increasing the output of a motor, and thus a convenient space can be quickly secured for a driver without degraded noise performance.Type: GrantFiled: September 1, 2020Date of Patent: February 20, 2024Assignee: HL MANDO CORPORATIONInventors: Sang Chul Ku, Sung Hun Park, Kwon Ho Lee
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Patent number: 11753063Abstract: According to the present embodiments, a telescopic stroke is increased while an installation space of a steering column is easily secured, and a telescopic operation can be quickly performed without increasing a motor output. During the telescopic operation, noise may be reduced, and assemblability and mass productivity of the steering column may be improved.Type: GrantFiled: February 24, 2021Date of Patent: September 12, 2023Assignee: HL MANDO CORPORATIONInventors: Sang Chul Ku, Kwon Ho Lee, Sung Hun Park
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Publication number: 20230064025Abstract: A steer by wire type steering apparatus according to the embodiments of the present disclosure comprises an output shaft provided with fixing grooves on both sides, a moving member which moves in the axial direction when the output shaft is rotated and is provided with a guide portion protruding in the radial direction on an outer circumferential surface, a pair of guide stoppers for guiding the axial movement of the moving member, an elastic ring for elastically supporting the guide stoppers in a radial direction, and housing.Type: ApplicationFiled: August 30, 2022Publication date: March 2, 2023Applicant: Mando CorporationInventor: Kwon Ho LEE
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Publication number: 20230055548Abstract: According to the present embodiments, a telescopic stroke is increased while an installation space of a steering column is easily secured, and a telescopic operation can be quickly performed without increasing a motor output. During the telescopic operation, noise may be reduced, and assemblability and mass productivity of the steering column may be improved.Type: ApplicationFiled: February 24, 2021Publication date: February 23, 2023Inventors: Sang Chul KU, Kwon Ho LEE, Sung Hun PARK
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Publication number: 20220324505Abstract: According to a steering column for a vehicle according to the present embodiments, a wide convenient space can be secured for a driver in a teles-in state by increasing a teles-stroke while securing an installation space for the steering column, the installation of the steering column is spatially convenient despite the increased teles-stroke, and a teles operation can be quickly performed without increasing the output of a motor, and thus a convenient space can be quickly secured for a driver without degraded noise performance.Type: ApplicationFiled: September 1, 2020Publication date: October 13, 2022Inventors: Sang Chul KU, Sung Hun PARK, Kwon Ho LEE
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Publication number: 20220266895Abstract: The present embodiments provide a steer by wire type steering apparatus including a first rotating member coupled to the steering shaft to rotate in interlocking, a second rotating member supported on the outer periphery of the first rotating member and rotating in conjunction with the first rotating member when the steering shaft rotates, and a housing in which the first rotating member and the second rotating member are built-in, coupled to the steering column, and the outer circumferential side of the second rotating member is supported on an inner circumferential surface to restrict rotation of the second rotating member.Type: ApplicationFiled: February 22, 2022Publication date: August 25, 2022Inventors: Sang Chul KU, Kwon Ho LEE, Min Ho PARK
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Patent number: 10351163Abstract: The present invention is related to a reducer of an electric power steering apparatus. An embodiment of the present invention provides a reducer of an electric power steering device. The reducer includes: a worm shaft having a worm formed thereon; a worm wheel having a worm gear formed thereon to be engaged with the worm; and a clearance compensation device coupled to a worm shaft bearing provided on an end of the worm shaft and configured to elastically support the end of the worm shaft within a reducer housing.Type: GrantFiled: November 30, 2016Date of Patent: July 16, 2019Assignee: MANDO CORPORATIONInventor: Kwon Ho Lee
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Publication number: 20170183026Abstract: The present invention is related to a reducer of an electric power steering apparatus. An embodiment of the present invention provides a reducer of an electric power steering device. The reducer includes: a worm shaft having a worm formed thereon; a worm wheel having a worm gear formed thereon to be engaged with the worm; and a clearance compensation device coupled to a worm shaft bearing provided on an end of the worm shaft and configured to elastically support the end of the worm shaft within a reducer housing.Type: ApplicationFiled: November 30, 2016Publication date: June 29, 2017Inventor: Kwon Ho LEE
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Patent number: 9555826Abstract: The present invention relates to a safety apparatus for a steer-by-wire. The present invention can ensure the safety of a steer-by-wire using a simple and compact structure and achieve a manufacturing-cost reduction effect.Type: GrantFiled: April 16, 2015Date of Patent: January 31, 2017Assignee: MANDO CORPORATIONInventor: Kwon Ho Lee
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Patent number: 9222005Abstract: The present invention relates to a slip prevention pad and a method of manufacturing the slip prevention pad. The method includes coating emery with a rubber-metal adhesive and then drying the adhesive-coated emery; kneading a raw rubber with a rubber reinforcing material and a vulcanizing agent to prepare an unvulcanized rubber; mixing the adhesive-coated emery with the unvulcanized rubber to obtain a mixture; introducing the mixture into a rubber molding machine to vulcanize and mold the mixture to obtain a rubber product; and cutting the rubber product. The slip prevention pad may effectively prevent slipping on a slippery road surface such as a snowy road or an icy road.Type: GrantFiled: July 8, 2011Date of Patent: December 29, 2015Inventors: Kwon Ho Lee, Yong Beom An
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Publication number: 20150298723Abstract: The present invention relates to a safety apparatus for a steer-by-wire. The present invention can ensure the safety of a steer-by-wire using a simple and compact structure and achieve a manufacturing-cost reduction effect.Type: ApplicationFiled: April 16, 2015Publication date: October 22, 2015Inventor: Kwon Ho LEE
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Publication number: 20130203924Abstract: The present invention relates to a slip prevention pad and a method of manufacturing the slip prevention pad. The method of manufacturing the slip prevention pad includes the steps of: 1) coating emery with a rubber-metal adhesive and then drying the adhesive-coated emery; 2) kneading a raw rubber with a rubber reinforcing material and a vulcanizing agent to prepare an unvulcanized rubber; 3) mixing the adhesive-coated emery with the unvulcanized rubber to obtain a mixture; 4) introducing the mixture into a rubber molding machine to vulcanize and mold the mixture to obtain a rubber product; and 5) cutting the rubber product. The slip prevention pad may effectively prevent slipping on a slippery road surface such as a snowy road or an icy road. In addition, the slip prevention pad may allow a user to walk normally on a non-slippery road without experiencing any inconvenience.Type: ApplicationFiled: July 8, 2011Publication date: August 8, 2013Inventors: Kwon Ho Lee, Yong Beom An