Patents by Inventor Jeong-Hwan Oh

Jeong-Hwan Oh 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: 11970616
    Abstract: A modified conjugated diene-based polymer having high linearity and improved compounding properties is provided. The modified conjugated diene-based polymer includes phosphor, sulfur and chlorine in specific amount ranges, and the degree of branching is controlled, and accordingly, if applied to a rubber composition, tensile strength and viscoelasticity may be excellent, and processability may be markedly improved.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: April 30, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Kyoung Hwan Oh, Hyo Jin Bae, Hyun Woong Park, Jeong Heon Ahn, Jae Hyeong Park
  • Patent number: 11963439
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure, it is possible to produce an organic electroluminescent device having improved driving voltage, power efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: April 16, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Eun-Joung Choi, Young-Kwang Kim, Su-Hyun Lee, So-Young Jung, YeJin Jeon, Hong-Se Oh, Dong-Hyung Lee, Jin-Man Kim, Hyun-Woo Kang, Mi-Ja Lee, Hee-Ryong Kang, Hyo-Nim Shin, Jeong-Hwan Jeon, Sang-Hee Cho
  • Patent number: 11953958
    Abstract: A display includes: a display panel; and a panel bottom sheet disposed below the display panel, the panel bottom sheet including: a first heat dissipation layer; a second heat dissipation layer over the first heat dissipation layer, including a first opening formed completely through the second heat dissipation layer in a thickness direction; a heat dissipation coupling interlayer between the first heat dissipation layer and the second heat dissipation layer, and a heat dissipation substrate on the second heat dissipation layer.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: April 9, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang Woo Lee, Boo Kan Ki, June Hyoung Park, Sun Hee Oh, Dong Hyeon Lee, Jeong In Lee, Hyuk Hwan Kim, Seong Sik Choi
  • Publication number: 20240018672
    Abstract: The present invention relates to a method for manufacturing a water-electrolysis catalyst electrode including cobalt boride nanoparticles, the method comprising: preparing cobalt boride nanoparticles with thermal plasma; and manufacturing an electrode including the prepared cobalt boride nanoparticles.
    Type: Application
    Filed: November 2, 2021
    Publication date: January 18, 2024
    Inventors: Sooseok CHOI, Jeong-Hwan OH
  • Patent number: 9381711
    Abstract: The present invention relates to a screw press dehydrator so as to facilitate transport of sludge and efficiently destroy microorganisms constituting sludge.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: July 5, 2016
    Inventor: Jeong Hwan Oh
  • Patent number: 8976779
    Abstract: Provided is a differential precoding method for reducing inter-user interference and increasing the sum rate. The differential precoding method comprises initializing a precoding matrix with a first (Precoding Matrix Indicator (PMI) for a channel between a mobile station and a base station; and updating the precoding matrix with a second PMI for the channel and side information for adaptively updating the precoding matrix according to a change speed of a state of the channel, wherein the side information has a quantized scalar value.
    Type: Grant
    Filed: May 30, 2011
    Date of Patent: March 10, 2015
    Assignee: Humax Holdings Co., Ltd.
    Inventors: Chung Ku Yie, Jeong Hwan Oh, Seok Hyun Yoon
  • Publication number: 20150040779
    Abstract: The present invention relates to a screw press dehydrator so as to facilitate transport of sludge and efficiently destroy microorganisms constituting sludge.
    Type: Application
    Filed: July 2, 2014
    Publication date: February 12, 2015
    Inventor: Jeong Hwan OH
  • Publication number: 20130122924
    Abstract: Provided is a method of mitigating interference caused by a base station. The method includes (a) determining whether there is an accessible base station among one or more base stations, and (b) sequentially determining channel information, which enables minimization of transmission power of each of the base stations, by base station among channel information between each of the base stations and a terminal to transmit the determined channel information to each of the base stations until an accessible base station is found when there is no accessible base station.
    Type: Application
    Filed: July 20, 2011
    Publication date: May 16, 2013
    Applicant: HUMAX CO., LTD.
    Inventors: Chung Ku Yie, Min Sung Kim, Jeong Hwan Oh
  • Publication number: 20130070723
    Abstract: Provided is a differential precoding method for reducing inter-user interference and increasing the sum rate. The differential precoding method comprises initializing a precoding matrix with a first (Precoding Matrix Indicator (PMI) for a channel between a mobile station and a base station; and updating the precoding matrix with a second PMI for the channel and side information for adaptively updating the precoding matrix according to a change speed of a state of the channel, wherein the side information has a quantized scalar value.
    Type: Application
    Filed: May 30, 2011
    Publication date: March 21, 2013
    Applicant: HUMAX CO., LTD.
    Inventors: Chung Ku Yie, Jeong Hwan Oh, Seok Hyun Yoon
  • Publication number: 20120007473
    Abstract: Disclosed herein is a piezoelectric generator unit using a piezoelectric bimorph. The piezoelectric generator unit includes a cylindrical housing, a fly wheel rotated within the housing by external power and provided with plural protrusions arranged at a regular interval in the circumferential direction, a fluid ejection device transmitting power to the fly wheel by ejecting a fluid or air onto impellers of the fly wheel to rotate the fly wheel, plural piezoelectric members installed radially and contacting the plural protrusions to generate electricity due to impact, and a central shaft connected to the plural piezoelectric members via connection members. The piezoelectric generator unit effectively converts a linear motion into a rotary motion simply using slight impact or vibration so as to effectively generate electrical energy, generates high output at low input so as to improve power generation efficiency, and is applicable to various fields using a moving load.
    Type: Application
    Filed: February 25, 2010
    Publication date: January 12, 2012
    Applicant: PEOPLE & ENVIRONMENT CO., LTD.
    Inventor: Jeong Hwan OH
  • Publication number: 20060054454
    Abstract: The present invention relates generally to an apparatus and method for counting currency notes, and more particularly, to an apparatus and method that automatically feed and count a plurality of currency notes, recognize the denominations thereof by reading the images thereof, and extract, store and output the serial numbers thereof. In accordance with the present invention, it is possible to database apparatus-related information, such as the denominations, serial numbers, amounts, serial number region images, and installation locations of continuously fed currency notes, together with processed time information, and to effectively use the currency note counting apparatus in receipt/payment management through the management of the serial numbers of currency notes.
    Type: Application
    Filed: June 26, 2003
    Publication date: March 16, 2006
    Inventor: Jeong-Hwan Oh