Patents by Inventor Chang-Gyu Choi

Chang-Gyu 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).

  • Publication number: 20240149109
    Abstract: 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: Application
    Filed: January 10, 2022
    Publication date: May 9, 2024
    Applicant: HEXARHUMANCARE CO., LTD
    Inventors: 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
  • Publication number: 20240149819
    Abstract: The present disclosure relates to an interior material for a vehicle and a method for molding the interior material for the vehicle, and more specifically the method for molding an interior material for a vehicle according to the present disclosure includes heating a skin inserted into an upper end heater and a lower end heater spaced apart from each other; preforming the heated skin using an upper mold having a mold temperature set to have a set shape and a lower mold having a second mold temperature; and pressing the preformed skin and a core using a 1-1 mold and a 1-2 mold having set mold temperatures.
    Type: Application
    Filed: January 16, 2024
    Publication date: May 9, 2024
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, KBI Dongkook Ind. Co., Ltd.
    Inventors: Jae Hyun An, In Soo Han, Woo Hyun Lim, Kyu Ha Yoo, Dong II Son, Dong Hyuk Choi, Chang Woo Kang, Chang Bok Park, Wan Gyu Choi
  • Patent number: 11949881
    Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: April 2, 2024
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Research Institute for Industry Cooperation, Industry-Academia Cooperation Group of Sejong University
    Inventors: Se-Yoon Jeong, Hae-Chul Choi, Jeong-Il Seo, Seung-Kwon Beack, In-Seon Jang, Jae-Gon Kim, Kyung-Ae Moon, Dae-Young Jang, Jin-Woo Hong, Jin-Woong Kim, Yung-Lyul Lee, Dong-Gyu Sim, Seoung-Jun Oh, Chang-Beom Ahn, Dae-Yeon Kim, Dong-Kyun Kim
  • Patent number: 11931861
    Abstract: A grinding wheel includes a plurality of wheel tips. The plurality of wheel tips include a plurality of diamond abrasive grains and a bonding material mixed with the diamond abrasive grains. The plurality of diamond abrasive grains have a ratio of a length in a long axis direction to a width in a short axis direction of 1:2.5 to 1:3.5 and includes edges or vertices having a grinding angle of 90° or less.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: March 19, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seong Gi Jeon, Sang Il Choi, Chang Su Jeong, Tae Gyu Kang
  • Publication number: 20240082095
    Abstract: 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: Application
    Filed: December 27, 2021
    Publication date: March 14, 2024
    Applicant: HEXARHUMANCAR CO., LTD
    Inventors: Chang Soo HAN, Ho Jun KIM, Su Hyun PARK, Young Hoon JI, Jeong Ho CHO, Byung Gab RYU, Jeong Gyu PARK, Dong Eun CHOI
  • Patent number: 11925080
    Abstract: A display device includes a substrate including a display area and a non-display area, a plurality of pixels disposed in the display area, a common voltage supply wiring overlapping the non-display area and disposed on the substrate, a driving voltage supply wiring overlapping the non-display area and disposed on the substrate, and a data voltage supply wiring overlapping the non-display area and electrically connected to the plurality of pixels, where at least one of the common voltage supply wiring and the driving voltage supply wiring includes a chamfered area, the data voltage supply wiring includes a first data voltage supply wiring, a second data voltage supply wiring, and a third data voltage supply wiring, and the first to third data voltage supply wirings are disposed in different layers.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: March 5, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Ho Choi, Won Kyu Kwak, Chang Soo Pyon, Seung Gyu Tae
  • Patent number: 9272666
    Abstract: A communication device for a vehicle in which an RF device in the room mirror is connected electrically to a radiator included in a shade band is disclosed. The communication device for a vehicle includes an RF device in a room mirror and a radiator disposed in a shade band and connected electrically to the RF device.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: March 1, 2016
    Assignee: ACE TECHNOLOGIES CORPORATION
    Inventors: Tae-Hwan Yoo, Chang-Gyu Choi, Byong-Nam Kim
  • Patent number: 9163350
    Abstract: A clothes treating apparatus and a controlling method thereof are disclosed. The clothes treating apparatus includes a housing defining a accommodating space for receiving clothes, an air supplying device for drying air circulating into the accommodating space, a temperature measuring device for measuring the interior temperature of the accommodating space, a preheating unit for raising the temperature of the accommodating space according to the temperature measured by the temperature measuring device, and a controller for controlling the air supplying device and the preheating unit according to the temperature measured by the temperature measuring device.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: October 20, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Jung Wook Moon, Dae Yun Park, Sog Kie Hong, Jong Seok Kim, Seung Gyu Ryu, Hye Yong Park, Chang Gyu Choi, Dong Won Kim
  • Patent number: 9096969
    Abstract: Disclosed is a clothes treating apparatus, which treats clothes into a more wearable condition. The clothes treating apparatus includes a cabinet; an accommodating space formed in the cabinet and accommodating clothes; a moisture supplying device generating moisture to be supplied into the accommodating space; and a supply unit discharging the moisture generated by the moisture supplying device into the accommodating space and installed on a bottom of the accommodating space.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: August 4, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Jung Wook Moon, Dae Yun Park, Sog Kie Hong, Jong Seok Kim, Seung Gyu Ryu, Hye Yong Park, Chang Gyu Choi
  • Patent number: 8966943
    Abstract: A laundry treating apparatus (100) includes a cabinet (10) comprising accommodating space (12) receiving laundry (1), a hot air supply device (22) supplying hot air to the accommodating space (12), a steam generating device (30) supplying steam to the accommodating space (12), a water supply part (60) rotatably provided in a predetermined portion of the cabinet (10), the water supply part (60) receiving water supplied to the steam generating device (30), and a water supply unit (80) allowing water to be supplied to the steam generating device (30) from the water supply part (60) as the water supply part is rotated.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: March 3, 2015
    Assignee: LG Electronics Inc.
    Inventors: Seung Gyu Ryu, Chang Gyu Choi, Hye Yong Park, Jung Wook Moon, Kwang Hee Lee
  • Patent number: 8925357
    Abstract: The present invention relates to clothes treating apparatus. The clothes treating apparatus includes a housing having a holding space for holding clothes, an air supply unit for generating dry air and supplying the dry air to the holding space, a moisture supply unit for supplying moisture to the holding space, and a water supply unit for supplying water to the moisture supply unit, and a drain unit for collecting condensed water from the air supply unit, wherein the water supply unit and the drain unit are provided separate from each other.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: January 6, 2015
    Assignee: LG Electronics Inc.
    Inventors: Jung Wook Moon, Dae Yun Park, Sog Kie Hong, Jong Seok Kim, Seung Gyu Ryu, Hye Yong Park, Chang Gyu Choi, Dong Won Kim
  • Patent number: 8915102
    Abstract: A clothes-treating apparatus is disclosed. According to the present invention, the clothes-treating apparatus includes a steam spraying unit capable of preventing water condensed from steam from flowing into an accommodating space containing clothes and it has an improved steam spraying unit to enhance work efficiency when a worker assembles parts thereof.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: December 23, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jung Wook Moon, Dae Yun Park, Sog Kie Hong, Jong Seok Kim, Seung Gyu Ryu, Kwang Hee Lee, Hye Yong Park, Chang Gyu Choi
  • Patent number: 8769997
    Abstract: A laundry machine is disclosed. A laundry machine includes a main laundry machine washing or drying laundry and an auxiliary laundry machine comprising a body installed in a predetermined portion of the main laundry machine, a drawer detachably from the body and a steam supply device installed in the main laundry machine, the drawer supplying steam to the drawer selectively.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: July 8, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jung Wook Moon, Chang Gyu Choi, Hye Yong Park, Seung Gyu Ryu, Kwang Hee Lee
  • Patent number: 8539694
    Abstract: A clothes treatment apparatus is disclosed. The clothes treatment apparatus includes a cabinet comprising an accommodating space formed therein to accommodate clothes, an air supply device configured to supply air or heated air to the accommodating space, a duct configured to guide the air or the heated air supplied by the air supply device toward the accommodating space, the duct comprising a communication part configured to draw external air into the accommodating space and a circulation fan configured to flow air along the duct, wherein the communication part is located in a rear portion of the circulation fan.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: September 24, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jung Wook Moon, Sog Kie Hong, Dong Won Kim, Seung Gyu Ryu, Hye Yong Park, Chang Gyu Choi, Dae Yun Park, Jong Seok Kim
  • Patent number: 8522450
    Abstract: A clothes-treating apparatus is disclosed. According to the clothes treating apparatus, it is easy and convenient for a worker to have access to a mechanism compartment for maintenance and repair of the components. In addition, if the user chooses an easier method of accessing the components of the clothes treating apparatus the maintenance repair costs may be lowered. Furthermore, it is easy for a worker to remove and replace the components of the mechanism compartment. In addition, according to the clothes treating apparatus, the assembly line of the mechanism compartment may be separate from an assembly line of the clothes treating apparatus, which may enhance work efficiency.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: September 3, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jung Wook Moon, Dae Yun Park, Sog Kie Hong, Jong Seok Kim, Seung Gyu Ryu, Kwang Hee Lee, Hye Yong Park, Chang Gyu Choi, Dong Won Kim
  • Patent number: 8514134
    Abstract: A Multiple-Input Multiple-Output (MIMO) antenna having parasitic elements is provided. The MIMO antenna includes a plurality of antenna elements, a plurality of parasitic elements, and a bridge. The plurality of antenna elements is symmetrically disposed on one side surface of a board while maintaining a predetermined distance therebetween. The plurality of parasitic elements is disposed on the other side surface of the board in a one-to-one correspondence with the plurality of antenna elements. The bridge is formed of a metal pattern line, and is configured to connect the plurality of parasitic elements to each other.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: August 20, 2013
    Assignee: Mobitech Corp.
    Inventors: Chan Ho Kim, Jin Myung Kim, Chang-Gyu Choi, Gyoung Rok Beak, Young Hun Park, Heung Ju Ahn, Yeon Ho Yang
  • Patent number: 8484860
    Abstract: Disclosed is a clothes treating apparatus, which treats clothes into a more wearable condition. A clothes treating apparatus includes a cabinet; an accommodating space defined in the cabinet to accommodate clothes, and maintained in a stationary state; an air supplying device generating dry air and supplying the dry air into the accommodating space such that the dry air is circulated in the accommodating space, wherein the air supplying device includes an inlet provided at a bottom of the accommodating space such that the air in the accommodating space flows into the air supplying device through the inlet; and a filter assembly installed in the inlet, and filtering the air passing through the inlet.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: July 16, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jung Wook Moon, Dae Yun Park, Sog Kie Hong, Jong Seok Kim, Seung Gyu Ryu, Hye Yong Park, Chang Gyu Choi, Dong Won Kim
  • Patent number: 8484861
    Abstract: A clothes treating apparatus is disclosed. The clothes treating apparatus includes a cabinet defining a accommodating space for receiving clothes, an air supplying device for drying air circulating into the accommodating space, and a guide unit for guiding dry air generated by the air supplying device to be uniformly dispersed into the accommodating space.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: July 16, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hye Yong Park, Jung Wook Moon, Seung Gyu Ryu, Chang Gyu Choi, Kwang Hee Lee
  • Patent number: 8230613
    Abstract: A clothes treating apparatus is disclosed. The clothes treating apparatus includes a cabinet in which an accommodating space for receiving clothes is defined, a steam generator for generating steam to be supplied into the accommodating space, and a supply unit for supplying the steam, generated in the steam generator, into the receiving space and collecting water condensed from the steam.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: July 31, 2012
    Assignee: LG Electronics Inc.
    Inventors: Jung Wook Moon, Dae Yun Park, Sog Kie Hong, Jong Seok Kim, Seung Gyu Ryu, Hye Yong Park, Chang Gyu Choi, Dong Won Kim
  • Patent number: 8225523
    Abstract: A clothes-treating apparatus and a controlling method thereof are disclosed. According to a controlling method of a clothes-treating apparatus, a clothes-treating apparatus is capable of steam-cleansing a heat exchanger of a heat pump provided therein automatically. An additional device may not be provided in the clothes treating apparatus to cleanse and sterilize a heat exchanger of a heat pump provided in a mechanism compartment to supply dry or heated air to clothes.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: July 24, 2012
    Assignee: LG Electronics Inc.
    Inventors: Jung Wook Moon, Dae Yun Park, Sog Kie Hong, Jong Seok Kim, Seung Gyu Ryu, Hye Yong Park, Chang Gyu Choi, Dong Won Kim