Patents by Inventor Yong-Jung Park

Yong-Jung Park 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: 20250062351
    Abstract: The present exemplary embodiment relates to a negative active material precursor and its manufacturing method. According to an exemplary embodiment, it is disclosed a negative active material precursor, comprising: a stacked portion disposed at a center of the negative active material precursor and where graphite particles are stacked; and at least one of void portion disposed between the center and a surface portion of the negative active material precursor, wherein, an average particle diameter D50 is 10 to 18 ?m, and the below equation 1 is satisfied. ( D ? 90 - D ? 10 ) / D ? 50 ? 1. ? Equation ? 1 ? (In equation 1, D10, D50, and D90 mean particle diameters corresponding to 10, 50, and 90% volume accumulation from a small size, respectively.
    Type: Application
    Filed: December 13, 2022
    Publication date: February 20, 2025
    Applicants: POSCO HOLDINGS INC., RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Gang Ho LEE, Sei Min PARK, Jong Hoon YOON, Yong Jung KIM, Jang-Yul KIM
  • Publication number: 20250058330
    Abstract: Disclosed are an electrostatic precipitator system and method. The disclosed electrostatic precipitator system includes: an electrostatic precipitator; a main hopper which is disposed below the electrostatic precipitator so as to be in fluid communication with the electrostatic precipitator; a plurality of sub-hoppers disposed below the main hopper so as to be in fluid communication with the main hopper; a vertical duct disposed below each sub-hopper so as to be in fluid communication with each sub-hopper; and a water tank disposed below the vertical duct so as to be in fluid communication with the vertical duct.
    Type: Application
    Filed: November 8, 2022
    Publication date: February 20, 2025
    Applicant: Samsung E&A Co., Ltd.
    Inventors: Chae Gwan PARK, Joeng Min OH, Tae Jin PARK, Jun Ho SEO, Yong Jung KIM
  • Publication number: 20250062352
    Abstract: The present embodiment relates to an anode active material precursor, an anode active material, and a method for manufacturing same. An anode active material precursor according to an embodiment comprises: a carbon-based material comprising a metal compound; and a petroleum-based pitch, wherein the petroleum-based pitch comprises, on the basis of 10 parts by weight of the carbon-based material, 3 to 10 parts by weight, the softening point of the petroleum-based pitch may be 220-280° C., and the content of the metal compound may be greater than or equal to 10 ppm.
    Type: Application
    Filed: December 6, 2022
    Publication date: February 20, 2025
    Applicants: POSCO HOLDINGS INC., RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Gang Ho LEE, Sei Min PARK, Jong Hoon YOON, Yong Jung KIM, Jang-Yul KIM
  • Publication number: 20250057013
    Abstract: A display device includes a substrate including a display area and a first non-display area around the display area; a light emitting element on the display area of the substrate in the display area; a lower inorganic encapsulation film on the substrate in the display area and the first non-display area; an organic encapsulation film on the lower inorganic encapsulation film; an upper inorganic encapsulation film on the organic encapsulation film; and a first dam between the lower inorganic encapsulation film and the upper inorganic encapsulation film in the first non-display area, wherein a first side surface of the first dam is in contact with the organic encapsulation film, and a second side surface of the first dam different from the first side surface of the first dam is in contact with the upper inorganic encapsulation film.
    Type: Application
    Filed: May 13, 2024
    Publication date: February 13, 2025
    Inventors: Yeon Guk KIM, Hee Yeon PARK, Chang Yeong SONG, Hye In JUNG, Yong Chan JU, Jae Heung HA
  • Patent number: 12203650
    Abstract: A waste heat recovery system and method are disclosed. The waste heat recovery system disclosed herein comprises: a waste heat recovery boiler; a waste heat supply member configured to supply waste heat to the waste heat recovery boiler; and a water tank configured to fluidly communicate with the waste heat supply member.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: January 21, 2025
    Assignee: SAMSUNG E&A CO., LTD.
    Inventors: Chae Gwan Park, Joeng Min Oh, Tae Jin Park, Jun Ho Seo, Yong Jung Kim
  • Patent number: 7673619
    Abstract: A gas vapor control system may include a canister for capturing gas vapor that is generated from a fuel, a throttle valve that is disposed substantially in the middle of an intake passage through which air flows into a cylinder of the engine, a gas passage that communicates from the canister to one side downstream of the throttle valve, a purge control valve that is disposed on the gas passage, and a control portion that stops an engine in an idle state and controls a real fuel injection amount that is to be injected while restarting the engine according to a first fuel amount that is included in gas vapor that is discharged into the intake passage.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: March 9, 2010
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Yong-Jung Park
  • Publication number: 20090277426
    Abstract: A gas vapor control system may include a canister for capturing gas vapor that is generated from a fuel, a throttle valve that is disposed substantially in the middle of an intake passage through which air flows into a cylinder of the engine, a gas passage that communicates from the canister to one side downstream of the throttle valve, a purge control valve that is disposed on the gas passage, and a control portion that stops an engine in an idle state and controls a real fuel injection amount that is to be injected while restarting the engine according to a first fuel amount that is included in gas vapor that is discharged into the intake passage.
    Type: Application
    Filed: November 12, 2008
    Publication date: November 12, 2009
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Yong-Jung PARK
  • Patent number: 7591252
    Abstract: A gas vapor control system that controls gas vapor that is generated in a fuel tank may include a canister in which the gas vapor is captured, a throttle valve that is mounted in an intake passage through which air passes, a gas vapor passage connecting the fuel tank to a portion of the intake passage formed before the throttle valve, wherein the canister is positioned at the gas vapor passage, a purge control valve that is mounted on the gas vapor passage, and a control portion that stops an engine in an idle stop condition, and that closes the throttle valve and opens the purge control valve to flow the gas vapor into the intake passage when a canister load value (CL) is higher than a predetermined value.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: September 22, 2009
    Assignee: Hyundai Motor Company
    Inventor: Yong Jung Park
  • Patent number: 7007645
    Abstract: Controlling of a CVVT can be improved by controlling the CVVT based on an estimated oil temperature, the estimated oil temperature being calculated on the basis of a coolant temperature at starting of the engine and a period of time that has elapsed after the starting of the engine.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: March 7, 2006
    Assignee: Hyundai Motor Company
    Inventor: Yong-Jung Park
  • Patent number: 7010422
    Abstract: Limp home control methods are provided for situations of a disconnected battery power line.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: March 7, 2006
    Assignee: Hyundai Motor Company
    Inventor: Yong-Jung Park
  • Publication number: 20050119823
    Abstract: Limp home control methods are provided for situations of a disconnected battery power line.
    Type: Application
    Filed: November 3, 2004
    Publication date: June 2, 2005
    Applicant: Hyundai Motor Company
    Inventor: Yong-Jung Park
  • Publication number: 20040020452
    Abstract: Controlling of a CVVT can be improved by controlling the CVVT based on an estimated oil temperature, the estimated oil temperature being calculated on the basis of a coolant temperature at starting of the engine and a period of time that has elapsed after the starting of the engine.
    Type: Application
    Filed: April 10, 2003
    Publication date: February 5, 2004
    Inventor: Yong-Jung Park
  • Patent number: 6659055
    Abstract: When a target timing is determined, a current duty-ratio of a solenoid valve is initially adjusted based on a learned initial value, and then gradually adjusted until a current valve timing corresponds to the target timing. The initial value is chosen from learned initial advance and retard values from a map having independent variables of fluid temperature and battery voltage.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: December 9, 2003
    Assignee: Hyundai Motor Company
    Inventor: Yong-Jung Park
  • Publication number: 20030066501
    Abstract: When a target timing is determined, a current duty-ratio of a solenoid valve is initially adjusted based on a learned initial value, and then gradually adjusted until a current valve timing corresponds to the target timing. The initial value is chosen from learned initial advance and retard values from a map having independent variables of fluid temperature and battery voltage.
    Type: Application
    Filed: October 4, 2002
    Publication date: April 10, 2003
    Inventor: Yong-Jung Park
  • Patent number: 6349698
    Abstract: In an injection pressure control method of a GDI engine, an engine torque and an engine rpm are detected, then an initial stratified mode fuel pressure value is set according to the detected engine torque and engine rpm. Next, a weighting factor is calculated according to a variation rate in effective pressure of a combustion chamber of the engine, and a corrected stratified mode fuel pressure value is established by multiplying the wighting factor to the initial stratified mode fuel pressure value. Then, the corrected stratified mode fuel pressure value is compared with a current fuel pressure value, then a final fuel pressure value is obtained according to the comparision result.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: February 26, 2002
    Assignee: Hyundai Motor Company
    Inventor: Yong-Jung Park
  • Publication number: 20010006055
    Abstract: In an injection pressure control method of a GDI engine, an engine torque and an engine rpm are detected, then an initial stratified mode fuel pressure value is set according to the detected engine torque and engine rpm. Next, a weighting factor is calculated according to a variation rate in effective pressure of a combustion chamber of the engine, and a corrected stratified mode fuel pressure value is established by multiplying the wighting factor to the initial stratified mode fuel pressure value. Then, the corrected stratified mode fuel pressure value is compared with a current fuel pressure value, then a final fuel pressure value is obtained according to the comparision result.
    Type: Application
    Filed: December 22, 2000
    Publication date: July 5, 2001
    Inventor: Yong-Jung Park
  • Patent number: 5666095
    Abstract: A high power waveguide valve capable of selectively transmitting or sealing the high power without causing its breakdown during a high power operation is disclosed. The inventive high power waveguide valve includes a vacuum chamber, a U-shaped waveguide being provided in the vacuum chamber, a first linear motion driver for vertically sliding the U-shaped waveguide, a dual H-corners assembly connected with the U-shaped waveguide, a sealing plate for selectively sealing the radio frequency between the U-shaped waveguide and the dual H-corners assembly, and a second linear motion driver for horizontally sliding the sealing plate.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: September 9, 1997
    Assignee: Postech Foundation
    Inventors: Won Namkung, Joo-Sik Park, Seung-Hwan Kim, Hee-Seob Kim, Yong-Jung Park