Patents by Inventor Byung-Jun Choi
Byung-Jun Choi 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: 20240149109Abstract: A knee joint rehabilitation apparatus for a wheelchair includes a rehabilitation apparatus frame having a height corresponding to a length of each of legs of a patient sitting on the wheelchair; an upper leg support disposed at an upper end of the rehabilitation apparatus frame and supporting upper legs of the patient thereon while the patient is sitting on the wheelchair; a lower leg support pivotably connected to the upper leg support, wherein the lower legs of the patient are seated and supported on the lower leg support; and an exercise control unit disposed on the rehabilitation apparatus frame and configured to allow the lower leg support to pivot around a connection portion between the lower leg support and the upper leg support such that the patient performs rehabilitation exercise of the knee joint thereof while sitting on the wheelchair.Type: ApplicationFiled: January 10, 2022Publication date: May 9, 2024Applicant: HEXARHUMANCARE CO., LTDInventors: Chang Soo HAN, Ho Jun KIM, Su Hyu PARK, Young Hoon JI, Jeong Ho CHO, Byung Gab RYU, Jeong Gyu PARK, Dong Eun CHOI, Cheol Woong AHN
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Publication number: 20240122070Abstract: The present invention relates to a novel polycyclic compound employed in an organic layer of an organoelectro luminescent device, wherein the organoelectro luminescent device employing the compound according to the present invention has remarkably improved luminous efficiency and a long lifespan. According to the present invention, it is possible to implement a highly efficient and long-life organoelectro luminescent device that can be effectively applied to various display devices.Type: ApplicationFiled: October 12, 2020Publication date: April 11, 2024Applicant: SFC CO., LTDInventors: Bong-ki SHIN, Sung-hoon JOO, Byung-sun YANG, Ji-hwan KIM, Hyeon-jun JO, Sung-eun CHOI
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Publication number: 20240092141Abstract: An air conditioning device for a vehicle includes: a housing having an inside divided into an inflow space, a heat exchange space, and an outflow space, which are straightly arranged, and having a plurality of discharge ports, which communicates with an interior, at the inflow space; a blowing unit disposed at the inflow space of the housing and configured to blow air; a heat exchange unit disposed at the heat exchange space of the housing and configured to adjust a temperature of conditioned air by exchanging heat with air; and an opening-closing door disposed at the outflow space of the housing and configured to open and close the plurality of discharge ports such that conditioned air at an adjusted temperature selectively flows to the plurality of discharge ports. The air conditioning device adjusts the temperature of conditioned air for respective modes and reduces a flow resistance of air.Type: ApplicationFiled: March 8, 2023Publication date: March 21, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, DOOWON CLIMATE CONTROL CO., LTD.Inventors: Kwang Ok Han, Young Tae Song, Yong Chul Kim, Gee Young Shin, Su Yeon Kang, Jae Sik Choi, Dae Hee Lee, Byeong Moo Jang, Ung Hwi Kim, Jae Won Cha, Won Jun Joung, Byung Guk An
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Publication number: 20240082095Abstract: Disclosed is an exoskeleton-type rehabilitation robot system, including: a body part provided on a chair in which a user sits and provided with a robot arm capable of moving left or right based on the user seated on the chair; a conversion part configured to convert a position of the robot arm with respect to the body part; a driving part configured to articulate the robot arm with respect to the body part; and a controller configured to detect a change in a position of the robot arm and control a left or right driving mode of the driving part according to the position of the robot arm. In accordance with such a configuration, the exoskeleton-type rehabilitation robot system of the present invention is provided integrally with a chair, thereby having excellent space utilization. In addition, the user's initial preparation for rehabilitation training is simple, which can improve efficiency.Type: ApplicationFiled: December 27, 2021Publication date: March 14, 2024Applicant: HEXARHUMANCAR CO., LTDInventors: Chang Soo HAN, Ho Jun KIM, Su Hyun PARK, Young Hoon JI, Jeong Ho CHO, Byung Gab RYU, Jeong Gyu PARK, Dong Eun CHOI
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Patent number: 11915853Abstract: A coil component is provided. The coil component includes a body having fifth and sixth surfaces opposing each other, first and second surfaces respectively connecting the fifth and sixth surfaces of the body and opposing each other, and third and fourth surfaces respectively connecting the first and second surfaces of the body and opposing each other in one direction, a recess disposed in an edge between one of the first and second surfaces of the body and the sixth surface of the body, a coil portion disposed inside the body and exposed through the recess, and an external electrode including a connection portion disposed in the recess and connected to the coil portion, and a pad portion disposed on one surface of the body. A length of the pad portion in the one direction is greater than a length of the connection portion in the one direction.Type: GrantFiled: November 6, 2020Date of Patent: February 27, 2024Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Seung Mo Lim, Seung Min Lee, Byeong Cheol Moon, Yong Hui Li, Byung Soo Kang, Ju Hwan Yang, Tai Yon Cho, No Il Park, Tae Jun Choi
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Patent number: 11913098Abstract: A self-healing alloy contains 5 to 11% by weight of molybdenum (Mo), iron (Fe) as a remainder, and unavoidable impurities. A method for manufacturing the self-healing alloy includes heat treating the alloy or preparing an alloy raw material powder and sintering, homogenizing, and cooling the alloy raw material powder.Type: GrantFiled: March 22, 2021Date of Patent: February 27, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, Kookmin University Industry Academy Cooperation FoundationInventors: Kyung Sik Choi, Hoo Dam Lee, Tae Gyu Lee, Byung Ho Min, Young Jun Kwon, Keun Won Lee, Yoon Jung Won, Ki Sub Cho
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Patent number: 9503124Abstract: Provided is a method of decoding a low-density parity-check code (LDPC). The decoding method including an initialization process, a check node update process, a variable node update process, a tentative decoding process, and a parity check process, for a plurality of check nodes and a plurality of variable nodes, further includes detecting at least one inactive variable nodes that do not require variable node update among the variable nodes, the variable node update process is performed only on active variable nodes except for the inactive variable node, and the check node update process is performed without using the inactive variable node.Type: GrantFiled: November 10, 2014Date of Patent: November 22, 2016Assignee: Ajou University Industry-Academic Cooperation FoundationInventors: Myung Hoon Sunwoo, Byung Jun Choi
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Publication number: 20150303944Abstract: Provided is a method of decoding a low-density parity-check code (LDPC). The decoding method including an initialization process, a check node update process, a variable node update process, a tentative decoding process, and a parity check process, for a plurality of check nodes and a plurality of variable nodes, further includes detecting at least one inactive variable nodes that do not require variable node update among the variable nodes, the variable node update process is performed only on active variable nodes except for the inactive variable node, and the check node update process is performed without using the inactive variable node.Type: ApplicationFiled: November 10, 2014Publication date: October 22, 2015Inventors: Myung Hoon SUNWOO, Byung Jun CHOI
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Publication number: 20080136622Abstract: A wireless network-based portable wireless flashing light system is based on a wireless network-based portable wireless flashing light. The wireless network-based portable wireless flashing light includes a wireless communication module, a display unit, an emergency alarm unit, and a control unit. The wireless communication module transmits and receives a wireless signal to and from an outside. The display unit displays predetermined information. The emergency alarm unit provides notification of an emergency. The control unit extracts status information about manufacturing machines from the signal received from the wireless communication module, displays information about a manufacturing machine in which an abnormality occurs on the display unit based on the status information, and operates the emergency alarm unit.Type: ApplicationFiled: May 24, 2006Publication date: June 12, 2008Applicant: KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Dae-Wha Seo, Yun-Jung Lee, Byung-Jun Choi, Bong-Kee Song, Jeen-Hong Park, Hong-Rok Kim, Jae-Won Park
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Patent number: 5870898Abstract: An air curtain fan driving controlling method and apparatus control a driving of an air curtain based on the temperature inside a refrigerating compartment of a refrigerator and the temperature outside a refrigerating compartment thereof. In the method, a reference temperature for controlling a temperature inside a refrigerating compartment is set. The normal cool operation for the refrigerating compartment is executed. It is judged whether an open door for the refrigerating compartment is detected during the normal cooling operating. In the previous step, when the door-close is detected, the temperature inside the refrigerating compartment and the temperature outside the refrigerating compartment is detected. An absolute value between a difference of the temperature inside a refrigerating compartment and the temperature outside the refrigerating compartment is compared with the set reference temperature to control a driving of the air curtain fan.Type: GrantFiled: December 3, 1997Date of Patent: February 16, 1999Assignee: Daewoo Electronics Co., Ltd.Inventor: Byung-Jun Choi
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Patent number: 5791152Abstract: A refrigerator has a device for generating an air curtain, and the air curtain generating device operates according to the sensor for sensing the opening/closing of the door and the temperatures in the cooling compartment sensed by temperature sensors. The air curtain is generated when the door is opened and when the temperature of the area near the door is higher than the temperature of the area distant from the door. Thus, the area near the door in the cooling compartment is efficiently cooled when the door is closed, and the operation for generating an air curtain is exactly performed when the door is opened even if the sensor for sensing the opening/closing of the door is out of order.Type: GrantFiled: June 6, 1997Date of Patent: August 11, 1998Assignee: Daewoo Electronics Co., Ltd.Inventor: Byung-Jun Choi