Patents by Inventor Seok Ho CHUNG

Seok Ho CHUNG 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).

  • Patent number: 11967705
    Abstract: An anode active material for a lithium secondary battery includes a carbon-based particle including pores therein, a silicon-containing coating layer formed at an inside the pores of the carbon-based particle or on a surface of the carbon-based particle, and a carbon coating layer formed on the silicon-containing coating layer. A full width at half maximum (FWHM) of an O1s peak of a surface measured by an X-ray photoelectron spectroscopy (XPS) is 2.0 or more. A lithium secondary battery including the anode active material having improved initial discharge capacity and capacity efficiency is provided.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: April 23, 2024
    Assignee: SK ON CO., LTD.
    Inventors: Gwi Ok Park, Seok Keun Yoo, Dong Il Jang, Ju Ho Chung
  • Publication number: 20240088389
    Abstract: An anode active material for a lithium secondary battery and a lithium secondary battery are provided. The anode active material includes a carbon-based particle including pores formed in at least one of an inside of the particle and a surface of the particle and having a pore size of the carbon-based particle is 20 nm or less, and silicon formed at an inside of the pores of the carbon-based particle or on the surface of the carbon-based particle. Silicon has an amorphous structure or a crystallite size of silicon measured by an XRD analysis is 7 nm or less. Difference between volume expansion ratios of carbon and silicon can be reduced to improve life-span property of the secondary battery.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 14, 2024
    Inventors: Gwi Ok PARK, Seok Keun YOO, Ju Ho CHUNG
  • Patent number: 9408098
    Abstract: A method and device for processing channel quality information in a communication system is provided. A preset sampling range is determined to estimate a channel quality of a sub-frame in a quality measurement mode. The sampling rate is calculated based on the interval between samples in the channels of the sampling range. The samples are detected in the channels according to the sampling rate. The channel quality information is measured in the samples. A receiving apparatus can maintain the cannels for measuring the channel quality information, i.e., the number of samples, in a certain range. The receiving apparatus can reduce the number of samples, thereby reducing the time required for measuring the channel quality information by a preset measurement time interval. The receiving apparatus can increase the number of samples, thereby raising the accuracy of the channel quality information.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: August 2, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seok Ho Chung, Young Seok Jung
  • Patent number: 9027492
    Abstract: Disclosed is a drillship having a vortex suppression block with a recessed flow stabilizing part in a moon pool. The flow stabilizing section is formed so that a bottom of the vortex suppression block that protrudes from a bottom of a hull toward a stern in the moon pool is recessed in an upward direction of the hull to stabilize a flow in the moon pool and reduce a variation in resistance of the drillship. The flow stabilizing section (30) is formed by partly recessing the bottom of the vortex suppression block toward an upper portion of the hull. The drillship having this configuration provides resistance performance improvement and flow stabilization of the drillship.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: May 12, 2015
    Assignee: Hyundai Heavy Industries Co., Ltd.
    Inventors: Sang-Bong Lee, Kang-Hoon Lee, You-Won Ann, Hyung-Kwan Kim, Seok-Ho Chung, Yong-Kwan Chung, Min-Jae Kwon
  • Publication number: 20140202371
    Abstract: Disclosed is a drillship having a vortex suppression block with a recessed flow stabilizing part in a moon pool. The flow stabilizing section is formed so that a bottom of the vortex suppression block that protrudes from a bottom of a hull toward a stern in the moon pool is recessed in an upward direction of the hull to stabilize a flow in the moon pool and reduce a variation in resistance of the drillship. The flow stabilizing section (30) is formed by partly recessing the bottom of the vortex suppression block toward an upper portion of the hull. The drillship having this configuration provides resistance performance improvement and flow stabilization of the drillship.
    Type: Application
    Filed: July 20, 2012
    Publication date: July 24, 2014
    Applicant: HYUNDAI HEAVY INDUSTRIES CO., LTD
    Inventors: Sang-Bong Lee, Kang-Hoon Lee, You-Won Ann, Hyung-Kwan Kim, Seok-Ho Chung, Yong-Kwan Chung, Min-Jae Kwon
  • Publication number: 20110051611
    Abstract: A method and device for processing channel quality information in a communication system is provided. A preset sampling range is determined to estimate a channel quality of a sub-frame in a quality measurement mode. The sampling rate is calculated based on the interval between samples in the channels of the sampling range. The samples are detected in the channels according to the sampling rate. The channel quality information is measured in the samples. A receiving apparatus can maintain the cannels for measuring the channel quality information, i.e., the number of samples, in a certain range. The receiving apparatus can reduce the number of samples, thereby reducing the time required for measuring the channel quality information by a preset measurement time interval. The receiving apparatus can increase the number of samples, thereby raising the accuracy of the channel quality information.
    Type: Application
    Filed: August 16, 2010
    Publication date: March 3, 2011
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Seok Ho CHUNG, Young Seok JUNG