Patents by Inventor Chang Yong Jang

Chang Yong Jang 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: 20240109350
    Abstract: The present disclosure relates to a portable printer including a main body in a portable form which is capable of accommodating a cartridge having a nozzle for delivering a printing material to a target having a soft or hard surface, a seating part which is provided to be exposed to an outside from a lower portion of the main body to face the surface of the target and at least partially surrounds the nozzle, a roller provided respectively at the front and rear of the nozzle at the lower portion of the main body with respect to a direction in which the main body moves along the surface of the target to deliver the printing material to the target, and a printing adjustment unit configured to adjust a height difference between the nozzle and the roller to adjust a height difference between the nozzle and the surface of the target.
    Type: Application
    Filed: October 20, 2022
    Publication date: April 4, 2024
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Chang Hwan HYUN, Ji Hee LEE, Kang Ug LEE, Sung Hyoun JANG, Hyeon Jin KWEON, Hae Na CHEONG, Ji Hee JEONG, Jung Yong LEE, Ha Young KIM
  • Publication number: 20240103362
    Abstract: Disclosed herein is a method of printing a nanostructure including: preparing a template substrate on which a pattern is formed; forming a replica pattern having an inverse phase of the pattern by coating a polymer thin film on an upper portion of the template substrate, adhering a thermal release tape to an upper portion of the polymer thin film, and separating the polymer thin film from the template substrate; forming a nanostructure by depositing a functional material on the replica pattern; and printing the nanostructure deposited on the replica pattern to a substrate by positioning the nanostructure on the substrate, applying heat and pressure to the nanostructure, and weakening an adhesive force between the thermal release tape and the replica pattern by the heat.
    Type: Application
    Filed: September 19, 2023
    Publication date: March 28, 2024
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong Min KIM, Seung Yong LEE, So Hye CHO, Ho Seong JANG, Jae Won CHOI, Chang Kyu HWANG
  • Patent number: 9243620
    Abstract: The present invention discloses a linear compressor which can rapidly overcome load and improve compression efficiency, by synchronizing an operation frequency of a linear motor with a natural frequency of a movable member varied by the load and varying a stroke of the movable member according to the load. The linear compressor includes a fixed member having a compression space inside, a movable member linearly reciprocated in the fixed member in the axial direction, for compressing refrigerants sucked into the compression space, one or more springs installed to elastically support the movable member in the motion direction of the movable member, spring constants of which being varied by load, and a linear motor installed to be connected to the movable member, for linearly reciprocating the movable member in the axial direction, and varying a stroke of the movable member according to a predetermined refrigeration force, so that the movable member can be linearly reciprocated to reach a top dead center.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: January 26, 2016
    Assignee: LG Electronics Inc.
    Inventors: Bong-Jun Choi, Chang-Yong Jang, Man-Seok Cho, Shin-Hyun Park, Hyun Kim, Jong-Min Shin, Young-Hoan Jeon, Chul-Gi Roh
  • Patent number: 8452354
    Abstract: A mobile communication terminal including a first body, a second body slidably connected to the first body and moveable between a first position and a second position, and a slide module connecting the first body to the second body. The slide module is configured to guide the second body along a curved path between the first position and the second position such that the second body moves in both a lateral and longitudinal direction with respect to the first body.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: May 28, 2013
    Assignee: LG Electronics Inc.
    Inventors: Chang-Yong Jang, Yong-Hee Lee, Min-Soo Kim
  • Patent number: 8306585
    Abstract: A mobile terminal is provided. The mobile terminal includes an upper body, a lower body, and a slide module connecting the upper and lower bodies, where the slide module is configured to slidably move the upper body in a first linear motion relative to the lower body and to tilt the upper body at an angle relative to the lower body in a second motion. The slide module includes an upper slide member fixed to the upper body, a lower slide member fixed to the lower body, and at least one cam portion formed on the upper slide member such that the at least one cam portion is configured to contact the lower slide member when the upper slide member is moved toward an open configuration using the first motion, wherein the contact causes the upper slide member to tilt when the upper slide member is moved to the open configuration using the second motion.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: November 6, 2012
    Assignee: LG Electronics Inc.
    Inventors: Chang-Yong Jang, Min-Soo Kim
  • Patent number: 8165284
    Abstract: A slide module having a first slide member, a second slide member moveable with respect to the first slide member, and a biasing unit connecting the first slide member to the second slide member, is provided. The biasing unit includes a first linkage having a plurality of links, the first linkage having one end rotatably connected to the first slide member and the other end rotatably connected to the second slide member, a second linkage having a plurality of links, the second linkage having one end of the second linkage rotatably connected to the first slide member and the other end rotatably connected to the second slide member, and a biasing mechanism connected between the first linkage and the second linkage.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: April 24, 2012
    Assignee: LG Electronics Inc.
    Inventors: Chang Yong Jang, Min-Soo Kim, Won-Seok Joo, Ki-Hoon Song
  • Patent number: 8116834
    Abstract: A slide type mobile terminal having a first body and a second body is provided. The first body includes a display and a first slide member. The second body includes a key pad and is slidably coupled to the first body. The second body includes a second slide member to slidably engage the corresponding first slide member of the first body to allow movement of the first body and the second body to enable one of closed or tilted configurations. One of the first and second slide members has a curvature along at least one end such that when the first body is extended from the second body, the first body is tilted at a predetermined angle with respect to the second body. The first body receives a portion of the second body and the second body receives a portion of the first body in the closed position.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: February 14, 2012
    Assignee: LG Electronics Inc.
    Inventors: Chang-Yong Jang, Choong-Hyoun Cho, Won-Seok Joo
  • Patent number: 8108017
    Abstract: A portable terminal is provided where the portable terminal has an upper body including an upper surface and a lower surface, a lower body having an upper surface, the upper body being slidably connected to the lower body for movement between a closed position and an open position to expose a portion of the upper surface of the second body, and a first moving unit connected between the upper body and the lower body, the first moving unit being configured to permit tilting of the upper body with respect to the lower body such that a portion of the lower surface of the upper body is lower than the exposed portion of the upper surface of the second body.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: January 31, 2012
    Assignee: LG Electronics Inc.
    Inventors: Chang-Yong Jang, Won-Seok Joo
  • Publication number: 20110317349
    Abstract: A portable terminal is provided where the portable terminal has an upper body including an upper surface and a lower surface, a lower body having an upper surface, the upper body being slidably connected to the lower body for movement between a closed position and an open position to expose a portion of the upper surface of the second body, and a first moving unit connected between the upper body and the lower body, the first moving unit being configured to permit tilting of the upper body with respect to the lower body such that a portion of the lower surface of the upper body is lower than the exposed portion of the upper surface of the second body.
    Type: Application
    Filed: September 9, 2011
    Publication date: December 29, 2011
    Inventors: Chang-Yong JANG, Won-Seok JOO
  • Patent number: 8060165
    Abstract: A portable terminal is provided where the portable terminal includes a lower body, an upper body connected to the lower body, the upper body being slidably moveable in a first direction with respect to the lower body between a closed position and an open position, and a first moving unit connected between the upper body and the lower body to move the upper body in a second direction different from the first direction. The first moving unit is configured to move the upper body toward the lower body along the second direction when the upper body is moved from the closed position to the open position and to move the upper body away from the lower body along the second direction when the upper body is moved from the open position to the closed position.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: November 15, 2011
    Assignee: LG Electronics Inc.
    Inventors: Min-Soo Kim, Chang-Yong Jang
  • Patent number: 8055316
    Abstract: A slide module includes a first slide member configured to slide upwardly and downwardly, a second slide member slidably mounted to the first slide member, an elastic force unit disposed between the first slide member and the second slide member, and having a plurality of elastic members mounted between a first rotation bar and a second rotation bar, wherein an elastic force is generated when the first rotation bar and the second rotation bar are rotated.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: November 8, 2011
    Assignee: LG Electronics Inc.
    Inventors: Chang-Yong Jang, Heui-II Jeong
  • Patent number: 8046036
    Abstract: A mobile terminal including a first body, a second body slidably moveable with respect to the first body such that the first body is moved between a closed position and an open position, a connector electrically connecting the first body to the second body, and a slide module connecting the first body to the second body to allow the second body to move with respect to the first body between the closed position and the open position is provided. The slide module includes a cover unit to prevent exposure of the connector when the first body is in the open position.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: October 25, 2011
    Assignee: LG Electronics Inc.
    Inventor: Chang-Yong Jang
  • Patent number: 8046037
    Abstract: A mobile terminal including a first body, a second body slidably moveable with respect to the first body such that the first body is moved between a closed position and an open position, a connector electrically connecting the first body to the second body, and a slide module connecting the first body to the second body to allow the second body to move with respect to the first body between the closed position and the open position is provided. The slide module includes a first slide member connected to the first body, a second slide member connected to the second body, the second slide member being slidably connected to the first slide member, and a cover unit disposed between the first and second slide members, the cover unit being configured to prevent exposure of the connector when the first body is in the open position.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: October 25, 2011
    Assignee: LG Electronics Inc.
    Inventor: Chang-Yong Jang
  • Patent number: 7988432
    Abstract: A rotary compressor has two compression capacities according to two different rotational directions of the driving shaft. The rotary compressor includes a driving shaft with an eccentric portion. A roller rotates on the shaft along an inner circumference of the cylinder. A vane installed in the cylinder continuously contacts the roller. An upper and a lower bearing are respectively disposed on the top and bottom of the cylinder. A disc shaped valve rotates between two positions and has at least one suction port for selectively supplying refrigerant inside the compression chamber according to the rotational direction of the driving shaft and at least one discharge port communicates with the compression chamber for discharging the compressed refrigerant. The refrigerant is supplied through a communication hole to a port formed on the outer valve.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: August 2, 2011
    Assignee: LG Electronics Inc.
    Inventors: Ji Young Bae, Chul Gi Roh, Kyoung Jun Park, Chang Yong Jang, Jong Bong Kim
  • Patent number: 7966049
    Abstract: A slide module includes a first slide member configured to slide upwardly and downwardly, a second slide member slidably mounted to the first slide member, and an elastic force unit disposed between the first slide member and the second slide member, and having an elastic member mounted between a first rod and a support member, and between a second rod and the support member, wherein an elastic force is generated when the first slide member is slid upwardly and downwardly with respect to the second slide member.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: June 21, 2011
    Assignee: LG Electronics Inc.
    Inventor: Chang-Yong Jang
  • Patent number: 7916473
    Abstract: An open/close mechanism of a portable terminal is provided. The portable terminal is configured such that when applying a force to an upper body in a horizontal direction with respect to a lower body, a slide-slip module allows the upper body subsequently to slide in the horizontal direction and slip in a longitudinal thickness direction with respect to the lower body so as to implement an open state, whereby a step generation between an upper surface of the upper body and an upper surface of the lower body can be minimized, so as to achieve a structurally stable portable terminal.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: March 29, 2011
    Assignee: LG Electronics Inc.
    Inventor: Chang-Yong Jang
  • Patent number: 7908962
    Abstract: A compressor is provided that includes a supplementary torque providing part that reduces a speed of a piston compression of refrigerant and increases the speed of the piston in drawing of the refrigerant. This structure reduces a compression rate of the refrigerant in compression relatively, and increases a re-expansion rate, to maximize suction efficiency.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: March 22, 2011
    Assignee: LG Electronics Inc.
    Inventors: Hyun Kim, Ji Young Bae, Chul Gi Roh, Chang Yong Jang, Jong Min Sin
  • Patent number: 7871252
    Abstract: A rotary compressor includes a driving shaft rotatable clockwise and counterclockwise, and an eccentric portion of a predetermined size; a cylinder forming a predetermined inner volume; a roller installed rotatably on an outer circumference of the eccentric portion to contact an inner circumference of the cylinder; a vane installed elastically in the cylinder to contact the roller continuously; a first bearing installed in the cylinder, for supporting the driving shaft rotatably; a second bearing rotatably supporting the driving shaft and preliminarily storing the fluid to be sucked; discharge ports communicating with the fluid chamber; and a valve assembly having openings separated by predetermined angle from each other, wherein compression spaces that have different volumes from each other are formed in the fluid chamber according to the rotation direction of the driving shaft so that two different compression capacities are formed.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: January 18, 2011
    Assignee: LG Electronics Inc.
    Inventors: Ji Young Bae, Kyoung Jun Park, Chang Yong Jang, Chul Gi Roh, Jong Bong Kim, Young Hwan Ko
  • Patent number: 7869834
    Abstract: A mobile terminal including a first body having a first surface and a second surface and a second body having a first surface and a second surface. In addition, the first body includes a first display located at the first surface and configured to display at least one icon, the at least one icon being selectable by touching the first display where the icon is displayed, a second display located at the second surface and configured to display information, and a receiver located in the first body and configured to transmit sound through the first surface. The second body includes an input device located at the first surface thereof to input information and is rotatably connected to the first body such that the first body can be rotated from a first state to a second state.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: January 11, 2011
    Assignee: LG Electronics Inc.
    Inventors: Won-Seok Seol, Min-Soo Kim, Byoung-Wook Kim, Chang-Yong Jang, Ho-Myoung Shin
  • Patent number: 7854602
    Abstract: A rotary compressor for changing a compression capacity of the compressor includes a driving shaft being rotatable clockwise and counterclockwise, and having an eccentric portion of a predetermined size; a cylinder forming a predetermined inner volume; a roller installed rotatably on an outer circumference of the eccentric portion so as to contact an inner circumference of the cylinder; a vane installed elastically in the cylinder to contact the roller continuously; a first bearing installed in the cylinder, for rotatably supporting the driving shaft; a second bearing installed in the cylinder, for rotatably supporting the driving shaft and guiding the fluid into the fluid chamber; discharge ports communicating with the fluid chamber; and a valve assembly having openings separated by a predetermined angle from each other, the valve assembly having a center which is eccentrically installed by a predetermined distance from a center of the cylinder.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: December 21, 2010
    Assignee: LG Electronics Inc.
    Inventors: Ji Young Bae, Chul Gi Roh, Kyoung Jun Park, Chang Yong Jang, Jong Bong Kim, Young Hwan Ko