Patents by Inventor Chang-hyun Park

Chang-hyun 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).

  • Publication number: 20250088069
    Abstract: The present invention may provide a motor comprising: a shaft; a rotor coupled to the shaft; a stator arranged to correspond to the rotor; and a bearing supporting the shaft, wherein the shaft includes a first region overlapping the bearing in the direction perpendicular to the axial direction of the shaft, the first region includes a first section and a second section, and the outer diameter of the first section is greater than the outer diameter of the second section.
    Type: Application
    Filed: December 21, 2022
    Publication date: March 13, 2025
    Applicant: LG INNOTEK CO., LTD.
    Inventor: Chang Hyun PARK
  • Publication number: 20250074624
    Abstract: An aircraft assembly system includes a jig; and a position adjuster connected to the jig and configured to adjust a position of the jig, wherein the jig includes a ball stud between the jig and the position adjuster, and the position adjuster includes a socket in which at least a portion of the ball stud is accommodated and in which the ball stud is rotatably fastened.
    Type: Application
    Filed: January 29, 2024
    Publication date: March 6, 2025
    Inventors: Dong Ho Lee, Myung Kyun Jeong, Chang Hoon Lee, Tae Hwan Kwak, Sang Bin Han, Suk Hyun Yoon, Tae Jin Song, Jun Young Choi, Cheol Bae Park
  • Patent number: 12234350
    Abstract: A polyolefin thermoplastic elastomer composition for an airbag chute, includes a polypropylene, an olefin block copolymer, and a dendrimer as a material applied to a raw material of a passenger airbag chute. An olefin elastomer composite resin composition for an airbag chute includes 30-80 parts by weight of a polypropylene resin, 30-70 parts by weight of an olefin block copolymer, and 0.1-5 parts by weight of a dendrimer based on 100 parts by weight of the olefin elastomer composite resin composition. The olefin elastomer composite resin composition for an airbag chute, improves the dispersion of the elastomer by applying a high-flow elastomer and a low-flow polypropylene, and improves flowability and meltability characteristics without deteriorating physical properties by applying the dendrimer.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: February 25, 2025
    Assignee: CEPLA CO., LTD.
    Inventors: Chang Won Chae, Sung Yeon Lee, Chang Min Hong, Jong Soo Park, Jae Myung Rhee, Jin Young Huh, Kyu Haeng Cho, Dae Keun Kim, Gwang Ho Go, Poong Hyun Choi
  • Patent number: 12235393
    Abstract: An embodiment provides a method and a device for outputting a light, which can output a light in a safe manner. Specifically, disclosed are a method and a device for outputting a light, which control an output light to prevent the output light from being concentrated on a specific area.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: February 25, 2025
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Yang Hyun Joo, Kang Yeol Park, Chang Hyuck Lee
  • Publication number: 20250059645
    Abstract: A substrate processing device. The device comprises: a first source supply unit; a second source supply unit; a first supply line for connecting the first source supply unit to a spraying unit; a second supply line for connecting the second source supply unit to the spraying unit; a mixing unit provided at the first supply line to be arranged between the first source supply unit and the spraying unit; a first connection line for connecting the second supply line to the first supply line and/or the mixing unit; and a first path change unit provided at a first connection point at which the first connection line is connected to the second supply line, wherein the first path change unit changes the flow path of a second source gas supplied from the second source supply unit.
    Type: Application
    Filed: January 17, 2023
    Publication date: February 20, 2025
    Inventors: Duck Ho KIM, Min Hyuk KIM, Kyung In MIN, Chang Kyun PARK, Jun Hee HAN, Du Ho KIM, Su Ye KIM, Seung Hyun LEE, Chul Joo HWANG
  • Patent number: 12229936
    Abstract: Some example embodiments relate to a super resolution scanning electron microscope (SEM) image implementing device and/or a method thereof. Provided a super resolution scanning electron microscope (SEM) image implementing device comprising a processor configured to crop a low resolution SEM image to generate a first cropped image and a second cropped image, to upscale the first cropped image and the second cropped image to generate a first upscaled image and a second upscaled image, and to cancel noise from the first upscaled image and the second upscaled image to generate a first noise canceled image and a second noise canceled image.
    Type: Grant
    Filed: April 15, 2022
    Date of Patent: February 18, 2025
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho Joon Lee, Il Kwon Kim, Sang Gul Park, Chang Wook Jeong, Moon Hyun Cha, Sat Byul Kim
  • Publication number: 20250055006
    Abstract: A reinforced composite membrane with improved ion conductivity and wettability is provided. Provided in one embodiment of the present disclosure is a reinforced composite membrane comprising a porous support and an ionomer layer, which comprises an ion conductor filling the pores inside the porous support, wherein the porous support comprises a first surface and a second surface opposite to the first surface, and the first surface is reformed to contain a first hydrophilic functional group.
    Type: Application
    Filed: November 23, 2022
    Publication date: February 13, 2025
    Inventors: Jung Hwa PARK, Dong Hoon LEE, Kum Suck SONG, Sung Hyun YUN, Seung Jib YUM, Chang Hoon OH, Hye Song LEE, Eun Su LEE
  • Publication number: 20250037650
    Abstract: A display device includes a power supply to supply a first initialization power source to the pixels through a first initialization and to supply a second initialization power source to the pixels through a second power line.
    Type: Application
    Filed: October 14, 2024
    Publication date: January 30, 2025
    Inventors: Kyong Hwan OH, Jin Tae JEONG, Ji Hyun KA, Won Kyu KWAK, Hyung Jun PARK, Chang Soo PYON, Ji Eun LEE, Hai Jung IN, Won Mi HWANG
  • Publication number: 20250026492
    Abstract: In an assembly system of an aircraft including a fuselage and a wing, the aircraft assembly system may include: a jig unit coupled to the wing to move integrally with the wing; a transfer unit connected to the jig unit and transferring the wing toward the fuselage; a position adjusting unit detachably connected to the jig unit and adjusting a position of the jig unit; and a measuring unit configured for measuring positions of the fuselage and the wing, wherein the fuselage may be relatively fixed to the movement of the wing, wherein the measuring unit may be configured to set a fuselage coordinate system and a wing coordinate system for the fuselage and the wing, respectively, wherein the position adjusting unit may be configured to move the jig unit so that the wing coordinate system coincides with the fuselage coordinate system.
    Type: Application
    Filed: November 30, 2023
    Publication date: January 23, 2025
    Inventors: Dong Ho LEE, Sang Bin HAN, Myung Kyun JEONG, Chang Hoon LEE, Tae Hwan KWAK, Cheol Bae PARK, Jun Young CHOI, Dong Han LEE, Suk Hyun YOON, Jeong Rak KIM
  • Publication number: 20250029741
    Abstract: The present invention relates to a method for analyzing a severe accident at a nuclear power plant by using a modular analysis code, comprising the step of: receiving the input of a nuclear power plant to be analyzed and an accident sequence; selecting, from a modular analysis code, an individual module for analyzing a severe accident that is triggered by the accident sequence; setting an accident simulation variable for simulating the severe accident from a nuclear power plant input model; determining whether the accident simulation variable is valid; and, if determined to be valid, analyzing the severe accident through the modular analysis code by using the accident simulation variable, wherein the individual module of the modular analysis code includes: a master module; a first module for analyzing in-core phenomena in the event of a severe accident; a second module for analyzing ex-core phenomena in the event of a severe accident; and a third module for analyzing behaviors of fission products in the event
    Type: Application
    Filed: January 5, 2023
    Publication date: January 23, 2025
    Inventors: Jae Hwan PARK, Yu Jung CHOI, Chang Hyun KIM
  • Publication number: 20250023576
    Abstract: Field programmable gate array (FPGA) based lossless data compression may be used in a test device such as a spectrum analyzer to efficiently reduce the data transfer rate and needed memory. Multi-channel IQ data may be flexibly recorded using multiple lanes of high data rate connections such as JESD204B/C and PCIe between an analog-digital-converter (ADC), the FPGA, and a processor. Bandwidth, sample rate, and/or bit number may determine the IQ data size. When the IQ data size is less than a product of the compression coefficient and the data transfer rate, the lossless compression may be skipped saving logic usage and power consumption in FPGA. Thus, depending on memory and transfer rate perspectives, a decision may be made whether the compression needs to be used or not.
    Type: Application
    Filed: July 14, 2023
    Publication date: January 16, 2025
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Bon-Jin KU, Chang-Hyun PARK, Seung-Gon HONG
  • Publication number: 20240405898
    Abstract: A radio frequency (RF) test device such as a spectrum analyzer may include an RF attenuator to attenuate a received RF signal; a mixer to down-convert the attenuated RF signal; an IF attenuator to attenuate the down-converted signal; an analog-to-digital converter (ADC) to digitize the attenuated, down-converted signal; and a processor, which may select attenuation values for one or more of the RF attenuator and the IF attenuator based on an error magnitude vector (EVM) analysis, an RF signal type, and a signal level at an input of the ADC. The processor may use a look-up table for the selection. Initial attenuation values may be selected based on an expected RF signal type, RF signal frequency, or RF signal bandwidth. The attenuation values may also be selected in an iterative manner stepping the attenuation values up or down.
    Type: Application
    Filed: August 12, 2024
    Publication date: December 5, 2024
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Bon-Jin KU, Seung-Gon HONG, Chang-Hyun PARK
  • Patent number: 12095519
    Abstract: A radio frequency (RF) test device such as a spectrum analyzer may include an RF attenuator to attenuate a received RF signal; a mixer to down-convert the attenuated RF signal; an IF attenuator to attenuate the down-converted signal; an analog-to-digital converter (ADC) to digitize the attenuated, down-converted signal; and a processor, which may select attenuation values for one or more of the RF attenuator and the IF attenuator based on an error magnitude vector (EVM) analysis, an RF signal type, and/or a signal level at an input of the ADC. The processor may use a look-up table for the selection. Initial attenuation values may be selected based on an expected RF signal type, RF signal frequency, and/or RF signal bandwidth. The attenuation values may also be selected in an iterative manner stepping the attenuation values up or down.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: September 17, 2024
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Bon-Jin Ku, Seung-Gon Hong, Chang-Hyun Park
  • Patent number: 12086437
    Abstract: The present technology relates to an electronic device. According to the present technology, a memory controller may include an attribute determiner configured to determine an attribute of each of a plurality of pages included in a first external device to indicate one of a hot page and a cold page, based on an access interval which is an interval from a time at which data is stored in each of the pages to a time at which access to the data is requested, a page analyzer configured to determine a ratio of hot pages having a hot page attribute to the plurality of pages, and a memory allocator configured to control one of the first external device and the second external device to store therein externally provided data based on the ratio of hot pages.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: September 10, 2024
    Assignee: SK hynix Inc.
    Inventors: Jun Hee Ryu, Chang Hyun Park, Kwang Jin Ko, Young Pyo Joo
  • Publication number: 20240195242
    Abstract: The present invention may provide a motor including a shaft, a rotor coupled to the shaft, and a stator disposed to correspond to the rotor, wherein the rotor includes a rotor core and magnets coupled to the rotor core, the rotor core includes holes which pass through the rotor core in an axial direction and in which the magnets are disposed, an outer circumferential surface of the rotor core includes grooves extending in the axial direction, and a center of the groove does not overlap the hole in a radial direction from the shaft.
    Type: Application
    Filed: April 13, 2022
    Publication date: June 13, 2024
    Inventor: Chang Hyun PARK
  • Patent number: 11989448
    Abstract: Provided herein may be a memory controller and a memory system including the same. The memory controller includes a scanning period controller configured to reset, whenever scanning points sequentially arrive, access information indicating whether each of a plurality of pages is accessed, and set a scanning interval for each of the pages between the scanning points for the page based on an attribute of the page, an attribute determiner configured to determine, as a hot page or a cold page, the attribute of each of the pages based on an access interval for the page from the first scanning point among the scanning points for the page to time at which access to data stored in the page is requested, and a memory allocator configured to control first and second memory devices based on the attributes of the pages.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: May 21, 2024
    Assignee: SK hynix Inc.
    Inventors: Jun Hee Ryu, Kwang Jin Ko, Chang Hyun Park, Young Pyo Joo
  • Patent number: 11953014
    Abstract: An integrated water pump and valve device in which a water pump and a valve are integrally controlled by a single controller, and the water pump and the valve are integrated, thereby reducing an overall size.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: April 9, 2024
    Assignee: GMB KOREA CORP.
    Inventors: Kyung Hwan Kim, Chang Hyun Park, Jae Sung Bae
  • Publication number: 20240106551
    Abstract: A radio frequency (RF) test device such as a spectrum analyzer may include an RF attenuator to attenuate a received RF signal; a mixer to down-convert the attenuated RF signal; an IF attenuator to attenuate the down-converted signal; an analog-to-digital converter (ADC) to digitize the attenuated, down-converted signal; and a processor, which may select attenuation values for one or more of the RF attenuator and the IF attenuator based on an error magnitude vector (EVM) analysis, an RF signal type, and/or a signal level at an input of the ADC. The processor may use a look-up table for the selection. Initial attenuation values may be selected based on an expected RF signal type, RF signal frequency, and/or RF signal bandwidth. The attenuation values may also be selected in an iterative manner stepping the attenuation values up or down.
    Type: Application
    Filed: September 27, 2022
    Publication date: March 28, 2024
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Bon-Jin KU, Seung-Gon HONG, Chang-Hyun PARK
  • Publication number: 20240035477
    Abstract: An integrated water pump and valve device in which a water pump and a valve are integrally controlled by a single controller, and the water pump and the valve are integrated, thereby reducing an overall size.
    Type: Application
    Filed: February 9, 2022
    Publication date: February 1, 2024
    Inventors: Kyung Hwan KIM, Chang Hyun PARK, Jae Sung BAE
  • Patent number: 11870325
    Abstract: The present disclosure provides a motor router comprising: an annular body having a first coil guide; and a guide part formed to protrude from the body, and having a second coil guide to which the first coil guide is connected, and thus the present invention reduces the number of parts and has a simplified configuration, thereby providing an advantageous effect of reducing manufacturing processes and manufacturing costs.
    Type: Grant
    Filed: January 17, 2023
    Date of Patent: January 9, 2024
    Assignees: LG INNOTEK CO., LTD., MANDO CORPORATION
    Inventors: Kyung Sang Park, Seong Jin Kim, Jung Woo Jo, Chang Hyun Park