Patents by Inventor Wook Hyeon

Wook Hyeon 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: 20240136430
    Abstract: A semiconductor device includes a first active pattern including a first lower pattern and first sheet patterns; a second active pattern including a second lower pattern and second sheet patterns, a height of the second lower pattern being smaller than a height of the first lower pattern; a first gate structure on the first lower pattern; a second gate structure on the second lower pattern; a first source/drain pattern on the first lower pattern and connected to the first sheet patterns; and a second source/drain pattern on the second lower pattern and connected to the second sheet patterns, wherein a width of an upper surface of the first lower pattern is different from a width of an upper surface of the second lower pattern, and wherein a number of first sheet patterns is different from a number of second sheet patterns.
    Type: Application
    Filed: May 24, 2023
    Publication date: April 25, 2024
    Inventors: Jongmin SHIN, Wook Hyun KWON, Su-Hyeon KIM, Jun Mo PARK, Kyu Bong CHOI
  • Patent number: 11958758
    Abstract: Disclosed is a ferromagnetic element-substituted room-temperature multiferroic material having ferromagnetism and ferroelectricity at room temperature, wherein the ferromagnetic element-substituted room-temperature multiferroic material includes a compound of chemical formula 1: <chemical formula 1> (Pb1-xMx)Fe1/2Nb1/2O3. In chemical formula 1, M represents a ferromagnetic element, and x represents a number greater than 0 and smaller than 1.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: April 16, 2024
    Assignee: UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Wook Jo, Jae Hyeon Cho
  • Patent number: 10011252
    Abstract: Disclosed herein are a vehicle control apparatus and a vehicle control method thereof. The vehicle control apparatus includes an input unit to receive first current heat energy calculation information, receive second current heat energy calculation information, and receive a current degree of slope; an estimator to estimate a current temperature of the brake apparatus on the basis of information regarding the difference between the first current heat energy calculation information and the second current heat energy calculation information; a compensator to compensate for braking power between the brake apparatus and the brake friction material; and a controller to receive the first current heat energy calculation information, the second current heat energy calculation information, and the current degree of slope, transmit an estimation command to the estimator, and transmit a compensation command to the compensator.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: July 3, 2018
    Assignee: MANDO CORPORATION
    Inventor: Wook-Hyeon Kim
  • Publication number: 20170080909
    Abstract: Disclosed herein are a vehicle control apparatus and a vehicle control method thereof. The vehicle control apparatus includes an input unit to receive first current heat energy calculation information, receive second current heat energy calculation information, and receive a current degree of slope; an estimator to estimate a current temperature of the brake apparatus on the basis of information regarding the difference between the first current heat energy calculation information and the second current heat energy calculation information; a compensator to compensate for braking power between the brake apparatus and the brake friction material; and a controller to receive the first current heat energy calculation information, the second current heat energy calculation information, and the current degree of slope, transmit an estimation command to the estimator, and transmit a compensation command to the compensator.
    Type: Application
    Filed: September 21, 2016
    Publication date: March 23, 2017
    Inventor: Wook-Hyeon KIM
  • Patent number: 9074568
    Abstract: The injection system of a fuel injection pump is provided. In the injection system of a fuel injection pump, a plunger performs a reciprocating slide motion in the axial direction inside of the plunger chamber of a barrel for compressing fuel. The plunger has a release groove and a control edge. A spill port is formed in the wall surface of the barrel. A damping groove is formed in the upper-part outer circumference of the control edge and provides a fine fuel flow path. The damping groove meets the spill port in advance to form the fine flow of fuel from the plunger chamber to the spill port before the control edge of the plunger meets the spill port to release pressure.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: July 7, 2015
    Assignee: HYUNDAI HEAVY INDUSTRIES CO., LTD.
    Inventors: Sang Lip Kang, Ju Tae Kim, Kwang Hean An, Dong Hun Kim, Wook Hyeon Yoon, Yong Seok Lee, Hyun Chun Park
  • Patent number: 9051925
    Abstract: A fuel injection pump having a variable pressure chamber which can adjust a fuel injection timing according to each engine load with a simple structure and a lower manufacture cost compared to the conventional injection pump without a separate apparatus for moving a barrel as well as not modifying a shape of a plunger.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: June 9, 2015
    Assignee: HYUNDAI HEAVY INDUSTRIES CO., LTD.
    Inventors: Deuk-Jin Park, Ju-Tae Kim, Dong-Hun Kim, Wook-Hyeon Yoon, Byong-Seok Kim, Tae-Hyung Park, Eun Ha, Beom-Yong No
  • Publication number: 20130156620
    Abstract: The present invention relates to a fuel injection pump having a variable pressure chamber which can adjust a fuel injection timing according to each engine load with a simple structure and a lower manufacture cost compared to the conventional injection pump without a separate apparatus for moving a barrel as well as not modifying a shape of a plunger.
    Type: Application
    Filed: March 21, 2011
    Publication date: June 20, 2013
    Applicant: Hyundai Heavy Industries, Co., Ltd.
    Inventors: Deuk-Jin Park, Ju-Tae Kim, Dong-Hun Kim, Wook-Hyeon Yoon, Byong-Seok Kim, Tae-Hyung Park, Eun Ha, Beom-Yong No
  • Patent number: 8379211
    Abstract: The present invention relates to an apparatus for sensing precipitation density of sludge in a wastewater treatment tank, more particularly to an apparatus and method for precisely taking density of sludge precipitated in a wastewater treatment tank without being contaminated by sludge. The present invention of an apparatus for sensing precipitation density of sludge in a waste water treatment tank comprises a container which is tube-shaped with a bottom thereof open and submerged in wastewater as filled with gas therein; and a sensor which is installed in the space in the container, and senses sludge density as not directly contacting with wastewater.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: February 19, 2013
    Assignee: Environmental Management Corporation
    Inventors: Jung-Pil Kwak, Wook Hyeon, Kyeong Sun Jeong, Yoo Jong Kim, Hong Soo Oh, Kyeong Joo Na
  • Publication number: 20130015274
    Abstract: The injection system of a fuel injection pump is provided. In the injection system of a fuel injection pump, a plunger performs a reciprocating slide motion in the axial direction inside of the plunger chamber of a barrel for compressing fuel. The plunger has a release groove and a control edge. A spill port is formed in the wall surface of the barrel. A damping groove is formed in the upper-part outer circumference of the control edge and provides a fine fuel flow path. The damping groove meets the spill port in advance to form the fine flow of fuel from the plunger chamber to the spill port before the control edge of the plunger meets the spill port to release pressure.
    Type: Application
    Filed: September 13, 2010
    Publication date: January 17, 2013
    Applicant: HYUNDAI HEAVY INDUSTRIES CO., LTD.
    Inventors: Sang Lip Kang, Ju Tae Kim, Kwang Hean An, Dong Hun Kim, Wook Hyeon Yoon, Yong Seok Lee, Hyun Chun Park
  • Publication number: 20100149539
    Abstract: The present invention relates to an apparatus for sensing precipitation density of sludge in a wastewater treatment tank, more particularly to an apparatus and method for precisely taking density of sludge precipitated in a wastewater treatment tank without being contaminated by sludge. The present invention of an apparatus for sensing precipitation density of sludge in a waste water treatment tank comprises a container which is tube-shaped with a bottom thereof open and submerged in wastewater as filled with gas therein; and a sensor which is installed in the space in the container, and senses sludge density as not directly contacting with wastewater.
    Type: Application
    Filed: November 13, 2007
    Publication date: June 17, 2010
    Applicant: Environment Management Corporation
    Inventors: Jung-Pil Kwak, Wook Hyeon, Kyeong Sun Jeong, Yoo Jong Kim, Hong Soo Oh, Kyeong Joo Na