Patents by Inventor Chang Hee Park

Chang Hee 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: 20240317993
    Abstract: Provided is a polyester resin composition that includes 28 to 50 wt % of a polybutylene terephthalate resin, 20 to 40 wt % of a polyethylene terephthalate resin, 20.5 to 30 wt % of a reinforcing fiber, and 5 to 30 wt % of a layered clay mineral, wherein the polyethylene terephthalate resin comprises one or more selected from among 1,4-cyclohexanedimethanol, isophthalic acid, and butanediol. The polyester resin composition can maintain flatness and minimize deformation even under high temperature environments by maintaining the balance between mechanical properties and heat resistance and thus being suitable for automotive parts, such as parts for electronic control units, the covers thereof, and the cover parts thereof. Also provided are a method of preparing the polyester resin composition, and a molded article manufactured using the polyester resin composition.
    Type: Application
    Filed: January 5, 2023
    Publication date: September 26, 2024
    Inventors: Ran Hee LEE, Chang Hee SONG, Tae Hun KWON, Jae Chan PARK
  • Patent number: 12086437
    Abstract: The present technology relates to an electronic device. According to the present technology, a memory controller may include an attribute determiner configured to determine an attribute of each of a plurality of pages included in a first external device to indicate one of a hot page and a cold page, based on an access interval which is an interval from a time at which data is stored in each of the pages to a time at which access to the data is requested, a page analyzer configured to determine a ratio of hot pages having a hot page attribute to the plurality of pages, and a memory allocator configured to control one of the first external device and the second external device to store therein externally provided data based on the ratio of hot pages.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: September 10, 2024
    Assignee: SK hynix Inc.
    Inventors: Jun Hee Ryu, Chang Hyun Park, Kwang Jin Ko, Young Pyo Joo
  • Publication number: 20240287230
    Abstract: A copolymer and a dispersion using same, the copolymer including two or more monomers selected from among a monomer containing two or more substituted or unsubstituted aromatic rings, a monomer containing a straight-chain or branched aliphatic hydrocarbon having 5 to 22 carbon atoms, and a polar monomer containing any one selected from the group consisting of cyano (CN), pyrrolidone (NC4H6O) and carboxylic acid (COOH).
    Type: Application
    Filed: February 21, 2022
    Publication date: August 29, 2024
    Inventors: Kwang-In KIM, Jin-Ju EOM, Chang-Beom KIM, Se-Man KWON, Si-Jin SONG, Jae-Hee HAN, Seung-Heon KIM, Chan-Su PARK
  • Publication number: 20240260355
    Abstract: A light emitting display device includes a substrate including a display area including a plurality of sub-pixels and a non-display area surrounding the display area, a plurality of first electrodes provided in the plurality of sub-pixels, a second electrode facing the plurality of first electrodes and extending over the entire display area and a part of the non-display area, an interlayer including a plurality of stacks provided between the plurality of first electrodes and the second electrode and a charge generation layer between the plurality of stacks, a first connection electrode provided in the non-display area and connected to the second electrode, and a second connection electrode disposed closer to the display area than the first connection electrode and connected to the charge generation layer, thus stabilizing the potential of a common layer having high mobility by using a connection electrode to prevent lateral leakage current caused by the common layer.
    Type: Application
    Filed: September 27, 2023
    Publication date: August 1, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Chang Hwan KWAK, Yun Hee CHOI, Sun Kap KWON, Jin Ho PARK
  • Publication number: 20240257749
    Abstract: Disclosed are a display panel, a pixel circuit arranged therein and a display device including the same. The display panel includes a sub-pixel of a first color, a sub-pixel of a second color, and a sub-pixel of a third color. Each of the sub-pixels of the first color, the second color, and the third color includes: a driving element including a first electrode coupled to a first node, a gate electrode coupled to a second node, and a second electrode coupled to a third node. The display panel includes a light emitting element including an anode electrode connected to the fourth node and configured to be driven by a current from the driving element; a first capacitor connected between the second node and the third node; and a second capacitor coupled between a constant voltage line and the third node or between the third node and the fourth node.
    Type: Application
    Filed: December 14, 2023
    Publication date: August 1, 2024
    Inventors: Ki Min SON, Ki Bok PARK, Chang Hee KIM
  • Patent number: 12048221
    Abstract: A display device may include a substrate including a display area and a non-display area; and a plurality of pixels disposed in the display area, the plurality of pixels each including an emission area and a non-emission area. Each of the plurality of pixels may include at least one light emitting element in the emission area; a first pixel electrode and a second pixel electrode electrically connected to the at least one light emitting element; a bank including a first opening corresponding to the emission area; a color conversion layer disposed in the emission area to correspond to the at least one light emitting element; a barrier layer disposed on the bank and the color conversion layer; and a low refractive layer disposed on the barrier layer. The barrier layer may include silicon oxide (SiOx) having cured polysilazane.
    Type: Grant
    Filed: January 3, 2022
    Date of Patent: July 23, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young Gu Kim, Chang Hee Lee, Yun Hee Park, Ji Yun Park, Bong Sung Seo, Baek Kyun Jeon, Kyung Seon Tak
  • Publication number: 20240243279
    Abstract: The present invention provides a positive electrode active material precursor having a uniform particle size distribution and a method of preparing the same, and, specifically, provides a positive electrode active material precursor represented by Formula 1, wherein a percentage of fine powder with an average particle diameter (D50) of 1 ?m or less generated when the positive electrode active material precursor is rolled at 2.5 kgf/cm2 is less than 1%, and an aspect ratio is 0.93 or more, and a method of preparing the positive electrode active material precursor. [NixCOyM1zM2w](OH)2??[Formula 1] In Formula 1, 0.55?x<1, 0<y?0.5, 0<z?0.5, and 0?w?0.1, M1 includes at least one selected from the group consisting of Mn and Al, and M2 includes at least one selected from the group consisting of Zr, B, W, Mo, Cr, Nb, Mg, Hf, Ta, La, Ti, Sr, Ba, Ce, F, P, S, and Y.
    Type: Application
    Filed: March 28, 2024
    Publication date: July 18, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Seong Bae Kim, Yi Rang Lim, Kyoung Wan Park, Hyun Uk Kim, Hong Kyu Park, Chang Jun Moon, Eun Hee Kim
  • Patent number: 12039589
    Abstract: The present disclosure provides a computerized method item correlation including: receiving an indication of an order comprising at least one item; determining if the order is urgent based on an amount of time remaining until the items must ship to a customer; determining a location of each of a plurality of pickers; iteratively, for items in the order: identifying a picker closest to the item, the picker having a current job priority; correlating the closest picker and the item in a data structure; re-correlating, in the data structure, at least one item previously correlated with the closest picker to an alternate picker in response to the current job priority not being urgent; sending, to a user device of the closest picker, a location and item identifier associated with the item; and storing, in the data structure, a completion flag in correlation with the item upon receipt of an item-complete message.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: July 16, 2024
    Assignee: Coupang Corp.
    Inventors: Chang Geun Jin, Lianxi Bai, Sung Jin Park, Sang Ho Lee, Hyun Yop Jung, Jeong Seok Oh, Sun Hee Hwang, Eung Soo Lee, Woong Kim, Xiufang Zhu, Zhongnan Li, Leming Lv, Jaehyun Kim, Yong-Cho Hwang, Erik Rehn
  • Patent number: 11649246
    Abstract: The present invention relates to a crystalline form of a salt of 4-amino-N-(1-((3-chloro-2-fluorophenyl)amino)-6-methylisoquinolin-5-yl)thieno[3,2-d]pyrimidine-7-carboxamide, and a pharmaceutical composition containing the same. The crystalline form of the salt of the compound can be easily used for preparing a pharmaceutical composition containing the same as an active ingredient.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: May 16, 2023
    Assignee: Hanmi Pharm. Co., Ltd.
    Inventors: Chang Hee Park, Seung Hyun Jung, Young Gil Ahn, Kwee Hyun Suh
  • Publication number: 20220135582
    Abstract: A novel heterotricyclic compounds of Formula 1 or pharmaceutically acceptable salts thereof, and uses thereof are disclosed. The novel heterotricyclic compounds exhibit an inhibitory activity against EZH1 (enhancer of zeste homolog 1) and/or EZH2 (enhancer of zeste homolog 2) activity. Pharmaceutical compositions containing these compounds as active ingredient is also disclosed. The heterotricyclic compound, pharmaceutically acceptable salts thereof, or compositions containing the compound or salt are useful in treating tumor or cancer in a subject.
    Type: Application
    Filed: February 19, 2020
    Publication date: May 5, 2022
    Applicant: HANMI PHARMACEUTICAL CO., LTD.
    Inventors: Dong Jin HONG, Seung Hyun JUNG, Chang Hee PARK, Seo Hee KIM, Ji Young HWANG, Young Gil AHN
  • Patent number: 11254676
    Abstract: Provided is a compound represented by Formula 1 having an inhibitory activity on lysine-specific demethylase-1 (LSD1), an optical isomer, a solvate, a tautomer, or a pharmaceutically acceptable salt thereof, which is effective in preventing or treating a disease caused by abnormal activation of LSD1.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: February 22, 2022
    Assignee: HANMI PHARM. CO., LTD.
    Inventors: In Hwan Bae, Ji Sook Kim, Won Jeoung Kim, Chang Hee Park, Ji Young Song, Young Gil Ahn
  • Publication number: 20210407316
    Abstract: Proposed is a posture comparison and correction method using an application configured to check two golf images and result data in an overlapping state, the posture comparison and correction method being capable of analyzing an image of a user captured through a portable device, displaying the swing speed of a golf club, the swing angle of the golf club, the swing form of the golf club, the angle of a head of the golf club, the hitting angle of a golf ball, the speed of the golf ball, the flying distance of the golf ball, and the trajectory of the golf ball on a screen, and comparing the image of the user with an image of a pro golfer transmitted from a server on a single screen, whereby it is possible to correct the posture of the user.
    Type: Application
    Filed: November 24, 2020
    Publication date: December 30, 2021
    Inventors: Seong Hyeon SHIN, Chang Hee PARK, Eun Hye PARK, Bok Cheon MUN
  • Publication number: 20210009591
    Abstract: Provided is a compound represented by Formula 1 having an inhibitory activity on lysine-specific demethylase-1 (LSD1), an optical isomer, a solvate, a tautomer, or a pharmaceutically acceptable salt thereof, which is effective in preventing or treating a disease caused by abnormal activation of LSD1.
    Type: Application
    Filed: September 13, 2018
    Publication date: January 14, 2021
    Applicant: Hanmi Pharm. Co., Ltd.
    Inventors: In Hwan BAE, Ji Sook KIM, Won Jeoung KIM, Chang Hee PARK, Ji Young SONG, Young Gil AHN
  • Publication number: 20200308187
    Abstract: The present invention relates to a crystalline form of a salt of 4-amino-N-(1-((3-chloro-2-fluorophenyl)amino)-6-methylisoquinolin-5-yl)thieno[3,2-d]pyrimidine-7-carboxamide, and a pharmaceutical composition containing the same. The crystalline form of the salt of the compound can be easily used for preparing a pharmaceutical composition containing the same as an active ingredient.
    Type: Application
    Filed: November 29, 2018
    Publication date: October 1, 2020
    Inventors: Chang Hee PARK, Seung Hyun JUNG, Young Gil AHN, Kwee Hyun SUH
  • Patent number: 9776505
    Abstract: Disclosed is a fuel injection hole cap for preventing explosion due to static electricity which is characterized in that it is possible to prevent any fire due to an explosion of fuel evaporation gas in such a way to instantly discharge static electricity the instant that a user touches with a hand injection hole cap before the fuel injection hole cap is opened, without carrying any device with him which is configured to prevent the occurrence of static electricity. For this, at the fuel injection hole cap of a vehicle, there is provided a static electricity discharger which is configured to discharge static electricity and flash by the current of the discharging, thus informing the use of the discharging.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: October 3, 2017
    Inventor: Chang Hee Park
  • Patent number: 9449349
    Abstract: A method of updating a scroll bar in a screen of a user terminal according to an embodiment of the present invention may include displaying a chat window including at least a portion of a chat history among users in a first display area of a touch display, displaying a scroll bar in a second display area of the touch display, storing the new chat message in a temporary memory temporarily upon receipt of the new chatting message, adding the new chat message into the chat history in response to a touch event of the user on the touch display, and updating the scroll bar in response to the new chat message being added into the chat history.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 20, 2016
    Assignee: Kakao Corp.
    Inventors: Chang Hee Park, In Young Oh, Wi Hoon Youn, Bo Hwan Jeon, Sang Hyuk Lee
  • Publication number: 20150239341
    Abstract: Disclosed is a fuel injection hole cap for preventing explosion due to static electricity which is characterized in that it is possible to prevent any fire due to an explosion of fuel evaporation gas in such a way to instantly discharge static electricity the instant that a user touches with a hand injection hole cap before the fuel injection hole cap is opened, without carrying any device with him which is configured to prevent the occurrence of static electricity. For this, at the fuel injection hole cap of a vehicle, there is provided a static electricity discharger which is configured to discharge static electricity and flash by the current of the discharging, thus informing the use of the discharging.
    Type: Application
    Filed: February 20, 2015
    Publication date: August 27, 2015
    Inventor: Chang Hee PARK
  • Patent number: 8586752
    Abstract: Disclosed are a crystalline S-omeprazole strontium hydrate for the prevention or treatment of gastric acid-related diseases, which has high optical purity, theremostability, solubility and nonhygroscopicity, a method for preparing same, and a pharmaceutical composition containing same.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: November 19, 2013
    Assignee: Hanmi Science Co., Ltd
    Inventors: Tae Hee Ha, Hee Sook Oh, Won Jeoung Kim, Chang Hee Park, Eun Young Kim, Young Hoon Kim, Kwee Hyun Suh, Gwan Sun Lee
  • Publication number: 20130303772
    Abstract: Disclosed are a crystalline S-omeprazole strontium hydrate for the prevention or treatment of gastric acid-related diseases, which has high optical purity, thermostability, solubility and nonhygroscopicity, a method for preparing same, and a pharmaceutical composition containing same.
    Type: Application
    Filed: July 16, 2013
    Publication date: November 14, 2013
    Inventors: Tae Hee HA, Hee Sook OH, Won Jeoung KIM, Chang Hee PARK, Eun Young KIM, Young Hoon KIM, Kwee Hyun SUH, Gwan Sun LEE
  • Patent number: 8513426
    Abstract: Disclosed are a crystalline S-omeprazole strontium hydrate for the prevention or treatment of gastric acid-related diseases, which has high optical purity, theremostability, solubility and nonhygroscopicity, a method for preparing same, and a pharmaceutical composition containing same.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: August 20, 2013
    Assignee: Hanmi Science Co., Ltd
    Inventors: Tae Hee Ha, Hee Sook Oh, Won Jeoung Kim, Chang Hee Park, Eun Young Kim, Young Hoon Kim, Kwee Hyun Suh, Gwan Sun Lee