Patents by Inventor Hoi Choi

Hoi 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: 20240149668
    Abstract: A torque vectoring device for a vehicle includes: a differential; a first planetary gear device including a first rotating element fixed to a transmission case and a second rotating element connected to a differential case of the differential; a second planetary gear device including a first rotating element connected to a motor, and a third rotating element connected to a third rotating element of the first planetary gear device; and a selective connector configured such that a second rotating element of the second planetary gear device can be selectively connected to one of the third rotating element of the second planetary gear device and a selected drive shaft which is one of two drive shafts coupled to the differential.
    Type: Application
    Filed: April 27, 2023
    Publication date: May 9, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Dae Young Kim, Kwang Min Choi, Baek Yu Kim, Chul Min Ahn, Sung Gon Byun, Sun Sung Kwon, Jun Hoi Huh
  • Publication number: 20240151300
    Abstract: A torque vectoring device for a vehicle is disclosed. The torque vectoring device includes: a differential; a first planetary gear set connected, at a first rotating element thereof, to a differential case of the differential; a second planetary gear set connected, at a first rotating element thereof, to a selected drive shaft that is one of two drive shafts coupled to the differential; a motor connected to a second rotating element of the first planetary gear set; and a selective fixing mechanism configured to selectively fix a second rotating element or a third rotating element of the second planetary gear set.
    Type: Application
    Filed: April 27, 2023
    Publication date: May 9, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Dae Young Kim, Kwang Min Choi, Baek Yu Kim, Chul Min Ahn, Sung Gon Byun, Sun Sung Kwon, Jun Hoi Huh
  • Publication number: 20240139151
    Abstract: The present invention relates to a composition including decursinol as an active ingredient for preventing or treating angina, arteriosclerosis, cerebral infarction, and hypertension. Poorly soluble decursinol was found to improve angina, arteriosclerosis, cerebral infarction, prostate hypertrophy, and diabetic hypertension by inhibiting the overgrowth of vascular endothelial cells, and is expected to be usable in the development of a composition for preventing or treating angina, arteriosclerosis, cerebral infarction, prostate hypertrophy, and diabetic hypertension.
    Type: Application
    Filed: January 11, 2022
    Publication date: May 2, 2024
    Applicant: KYUNGSUNG UNIVERSITY INDUSTRY COOPERATION FOUNDATION
    Inventors: Jae Seon KANG, Hyung Hoi KIM, Jae Sung PYO, Seong Jae LEE, Ye Jin HWANG, Hyeong Soo KIM, Jae Ki CHOI
  • Patent number: 9801998
    Abstract: The present invention relates to a structure having a nanoantenna, a method for manufacturing same, a drug delivery body having the same, a thermotherapy complex, a drug therapy device, and a thermotherapy device. The structure of the present invention has a nanoantenna pattern formed on the outer surface of a porous micro-container, thereby enabling wireless control from the outside, and when the structure is used as a drug delivery system and a thermotherapy complex, drug therapy and thermotherapy can be carried out at a desired application region inside a living body at a desired time. Also, the structure of the present invention enables transmission and reception of a wireless signal with an external controller through the nanoantenna, thereby enabling the detection of a signal inside the living body and the transmission of the signal to the external controller, and the discharge of a drug or nanowires according to a response signal transmitted from the external controller.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: October 31, 2017
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Sung Hoi Choi, Jung Rae Park, Young Keun Kim
  • Publication number: 20160022300
    Abstract: The present invention provides a cell eradication method and a cell eradication principle for necrotizing a cell by agitating a cell using a physical turning force from the impression of an AC magnetic field, after preparing a magnetic nanowire having a dipole and introducing the magnetic nanowire into a cell. Therefore, the composition for inducing cell eradication of the present invention, when applied to a cell that is requested to be removed such as a cancer cell, can eradicate the cell by applying a physical impact through the rotation of the nanowire introduced inside the cell. Additionally, the heat generated from induced current from the magnetic field impression can add an effect of thennotherapy, and also, attaching a drug to the surface of the nanowire enhances the treatment effects.
    Type: Application
    Filed: July 28, 2015
    Publication date: January 28, 2016
    Inventors: Sung Hoi CHOI, Jung Rae PARK, Young Keun KIM
  • Patent number: 8782720
    Abstract: A synchronization apparatus and method for synchronizing playback time of a media provided to multiple devices during service transfer and replication process are provided. The content synchronization system for providing a receiving terminal with content of a sending terminal, the content synchronization system includes the sending terminal; the receiving terminal; and a server configured to provide content to the sending terminal and the receiving terminal and to comprise a communication unit configured to communicate the sending terminal and the receiving terminal and to transmit a message and information about time point at which the message is sent, and a content playback time point calculating unit configured to calculate a first content playback start time point of the receiving terminal in an effort to provide the content of the sending terminal that is synchronized with the receiving terminal.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: July 15, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hun-Hoi Choi, Hwa-Suk Kim, Kee-Seong Cho, Geun-Hyung Kim, Jae-Chan Shim
  • Publication number: 20130317421
    Abstract: The present invention relates to a structure having a nanoantenna, a method for manufacturing same, a drug delivery body having the same, a thermotherapy complex, a drug therapy device, and a thermotherapy device. The structure of the present invention has a nanoantenna pattern formed on the outer surface of a porous micro-container, thereby enabling wireless control from the outside, and when the structure is used as a drug delivery system and a thermotherapy complex, drug therapy and thermotherapy can be carried out at a desired application region inside a living body at a desired time. Also, the structure of the present invention enables transmission and reception of a wireless signal with an external controller through the nanoantenna, thereby enabling the detection of a signal inside the living body and the transmission of the signal to the external controller, and the discharge of a drug or nanowires according to a response signal transmitted from the external controller.
    Type: Application
    Filed: January 31, 2012
    Publication date: November 28, 2013
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Sung Hoi Choi, Jung Rae Park, Young Keun Kim
  • Publication number: 20130309280
    Abstract: The present invention provides a cell eradication method and a cell eradication principle for necrotizing a cell by agitating a cell using a physical turning force from the impression of an AC magnetic field, after preparing a magnetic nanowire having a dipole and introducing the magnetic nanowire into a cell. Therefore, the composition for inducing cell eradication of the present invention, when applied to a cell that is requested to be removed such as a cancer cell, can eradicate the cell by applying a physical impact through the rotation of the nanowire introduced inside the cell. Additionally, the heat generated from induced current from the magnetic field impression can add an effect of thermotherapy, and also, attaching a drug to the surface of the nanowire enhances the treatment effects.
    Type: Application
    Filed: January 31, 2012
    Publication date: November 21, 2013
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Sung Hoi Choi, Jung Rae Park, Young Keun Kim
  • Publication number: 20130277146
    Abstract: Disclosed is a convergence sound-absorbing material and a method of fabricating the same, and more particularly, a convergence sound-absorbing material and a method of fabricating the same in which an inexpensive eco-friendly recycled filler composed of polyurethane foam and a recycled thread or waste felt is used as a filler in an intermediate layer of the PET sound-absorbing material to provide remarkably reduced fabrication costs and excellent sound-absorbing performance. In addition the waste felt, which is typically discarded during a process of cutting the sound-absorbing material, is recycled for use in the filler.
    Type: Application
    Filed: September 27, 2012
    Publication date: October 24, 2013
    Applicants: HYUNDAI MOTOR COMPANY, YOUNGSEUNG CO., LTD., DAEHAN SOLUTION CO., LTD., KIA MOTORS CORPORATION
    Inventors: Jung Wook Lee, Dong Uk Lee, Jin Ho Hwang, Hoe Hyun Kwon, Jung Hoi Choi
  • Publication number: 20130007819
    Abstract: A synchronization apparatus and method for synchronizing playback time of a media provided to multiple devices during service transfer and replication process are provided. The content synchronization system for providing a receiving terminal with content of a sending terminal, the content synchronization system includes the sending terminal; the receiving terminal; and a server configured to provide content to the sending terminal and the receiving terminal and to comprise a communication unit configured to communicate the sending terminal and the receiving terminal and to transmit a message and information about time point at which the message is sent, and a content playback time point calculating unit configured to calculate a first content playback start time point of the receiving terminal in an effort to provide the content of the sending terminal that is synchronized with the receiving terminal.
    Type: Application
    Filed: June 26, 2012
    Publication date: January 3, 2013
    Applicants: Dong-Eui University Industry-Academic Cooperation Foundation, Electronics and Telecommunications Research Institute
    Inventors: Hun-Hoi CHOI, Hwa-Suk KIM, Kee-Seong CHO, Geun-Hyung KIM, Jae-Chan SHIM
  • Patent number: 8046342
    Abstract: The present invention relates to a system and method for providing a real time answering service by using communication media capable of transmitting and receiving data and voice.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: October 25, 2011
    Assignee: Ismaker Co., Ltd.
    Inventor: Jung-hoi Choi
  • Publication number: 20090240665
    Abstract: The present invention relates to a system and method for providing a real time answering service by using communication media capable of transmitting and receiving data and voice.
    Type: Application
    Filed: September 15, 2006
    Publication date: September 24, 2009
    Inventor: Jung-hoi Choi
  • Publication number: 20060110839
    Abstract: An array of light emitting devices, each device comprising a sloped wall mesa (24) of luminescent semiconductor material. Extending over the sloped wall mesas (24) is a metal contact (30). The array can be arranged as a parallel addressable system so that all devices (24) can be stimulated to emit light simultaneously. Alternatively, the array can be arranged as a matrix addressable array, in which case individual devices can be selectively stimulated.
    Type: Application
    Filed: February 2, 2004
    Publication date: May 25, 2006
    Inventors: Martin Dawson, Hoi Choi, Chan-Wook Jeon
  • Patent number: D307983
    Type: Grant
    Filed: February 17, 1987
    Date of Patent: May 22, 1990
    Assignee: Sklar-Peppler Inc.
    Inventor: Hoi Choi
  • Patent number: D620497
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: July 27, 2010
    Assignee: LG Electronics Inc.
    Inventors: Deung Hwang Bo, Hyun Hee You, Jung Hoi Choi
  • Patent number: D633503
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: March 1, 2011
    Assignee: LG Electronics Inc.
    Inventors: Deung Hwang Bo, Eun Ji Lee, Jung Hoi Choi
  • Patent number: D643002
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: August 9, 2011
    Assignee: LG Electronics Inc.
    Inventors: Jung Hoi Choi, Sung Gu Joe, Sung Hoon Oh
  • Patent number: D676006
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: February 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jung Hoi Choi, Sung Gu Joe, Sung Hoon Oh