Patents by Inventor Choon Lee

Choon Lee 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: 20240090328
    Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.
    Type: Application
    Filed: October 26, 2023
    Publication date: March 14, 2024
    Inventors: Hee-Choon AHN, Young-Kwang KIM, Su-Hyun LEE, Ji-Song JUN, Seon-Woo LEE, Chi-Sik KIM, Kyoung-Jin PARK, Nam-Kyun KIM, Kyung-Hoon CHOI, Jae-Hoon SHIM, Young-Jun CHO, Kyung-Joo LEE
  • Publication number: 20240074351
    Abstract: A crop harvesting apparatus includes a pressure generator configured to generate a pressure, a driver configured to have a shape that changes in response to receiving the pressure from the pressure generator, and a cutter configured to cut an object to be cut in accordance with a change in the shape of the driver.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 7, 2024
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Ja Choon KOO, Yeo Il YUN, Eun Jeong SONG, Moo Heon LEE, Seon Il LEE
  • Patent number: 11918781
    Abstract: An infusion flow regulator includes: a main body having an inlet through which fluid is introduced and an outlet through which the fluid is discharged; and a rotary dial rotatably coupled to the main body, with a sealing member interposed therebetween, so as to regulate a flow rate of the fluid, in which the rotary dial includes a regulating flow path having a shape of a recessed groove in cross section with a first width and a first height, and the regulating flow path includes a first region in which the first width is constant and the first height is decreased, and a second region in which both the first width and the first height are decreased. By the aforementioned configuration, the infusion flow regulator for the fluid can accurately regulate the flow rate even in a region where the flow rate of the fluid is very small.
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: March 5, 2024
    Assignee: Korea Aerospace Research Institute
    Inventors: Poo Min Park, Hyung Mo Kim, Tae Choon Park, Young Seok Kang, Jae Sung Huh, Doo Yong Lee
  • Patent number: 11917907
    Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: February 27, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Kyoung-Jin Park, Tae-Jin Lee, Jae-Hoon Shim, Yoo Jin Doh, Hee-Choon Ahn, Young-Kwang Kim, Doo-Hyeon Moon, Jeong-Eun Yang, Su-Hyun Lee, Chi-Sik Kim, Ji-Song Jun
  • Patent number: 11891844
    Abstract: Disclosed is a two way swinging door opening gap control device for controlling the movements of companion animals that is detachably attached to the existing door and door frame with ease, without any structural change or damage, thereby being applied conveniently to various types of doors, and that controls an opening gap of the door to allow the companion animals to freely enter through the door, to prevent the door from being excessively opened by external wind or animals entering therethrough, and to limit the spaces the animals can enter according to animal sizes to thus provide individual living spaces for the animals. According to the present invention, the opening gap control device largely includes a gap control band 100, a locking pin module 200, and a locking holder module 300.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: February 6, 2024
    Inventor: Sang Choon Lee
  • Publication number: 20230308524
    Abstract: A system to generate and present an intelligent RSS feed that performs operations that include: accessing a media collection from a media host, wherein the media collection may comprise a podcast; caching a sequence of media objects associated with the media collection at a media repository; receiving a request that comprises an identifier associated with the media collection; inserting a media object at a position among the sequence of media objects; and causing display of a presentation of the sequence of media objects at a client device wherein the sequence of media objects includes one or more podcasts, and the presentation of the sequence of media objects includes the media object inserted at the position among the sequence of media objects.
    Type: Application
    Filed: March 24, 2022
    Publication date: September 28, 2023
    Inventors: Timothy Teck Choon Lee, William Anthony Estoque, Ron Alan Hornbaker
  • Patent number: 11767353
    Abstract: Fusion polypeptides with modified multimerization domains that provide high expression, solubility, stability, and low immunogenicity to the fusion polypeptides have been developed. TRAIL compositions with the modified multimerization domains show improved physico-chemical and biological properties relative to TRAIL compositions with unmodified multimerization domains. The TRAIL compositions also have lower immunogenicity in the mammalian host when compared to that of TRAIL compositions with unmodified multimerization domains. The TRAIL compositions induce apoptosis of cancer cells and cancer-associated fibroblasts in vivo, reducing tumor size.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: September 26, 2023
    Assignee: THERALY FIBROSIS, INC.
    Inventors: Alex Sokoloff, Viktor Roschke, Kang Choon Lee, Seulki Lee, Yumin Oh
  • Publication number: 20230251315
    Abstract: A busbar diagnosis apparatus includes a plurality of voltage sensing pins, a battery monitoring circuit, a voltage sensing channel, a bypass unit and a control circuit to diagnose s busbar. A voltage of each of a plurality of battery cells of a first battery module and a plurality of battery cells of a second battery module is detected using a potential difference of every two adjacent voltage sensing pins, and the busbar is diagnosed based on a voltage history of each of the plurality of battery cells.
    Type: Application
    Filed: January 21, 2022
    Publication date: August 10, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Yong-Min JO, Nak-Choon LEE, Mu-Yeon LEE, Ju-Yeon JEONG
  • Patent number: 11653634
    Abstract: A method for adjusting an aquarium water temperature through direct heat exchange by a water temperature adjustment apparatus for an aquarium includes: a first step of allowing a smart sensor unit to measure the temperature of the water; a second step of controlling a heat exchange adjuster that sunk in the water to adjust the temperature of the water based on the temperature of the water measured by the smart sensor unit; and a third step of allowing the heat exchange adjuster to adjust direct heat exchange with the water.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: May 23, 2023
    Assignee: ELECQUA CO., LTD.
    Inventor: Han Choon Lee
  • Patent number: 11649414
    Abstract: The present disclosure relates to a synthetic vegetable oil and an environmental-friendly flame-retardant hydraulic oil composition including the same, and a preparation method thereof, and provides a method of preparing a glycerin-ester-based lubricating base oil through a catalyst-free and rinsing-free process, a glycerin-ester-based lubricating base oil that is a synthetic vegetable oil obtained by the method, and an environmental-friendly flame-retardant hydraulic oil composition that contains the glycerin-ester-based lubricating base oil and that is capable of reducing electricity consumption by 7 to 8% compared to mineral oil-based lubricating oils due to excellent flame retardancy (with self-extinguishing function) and lubricity.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: May 16, 2023
    Assignee: HANVAL INC.
    Inventors: Kwang Soon Kim, Dong Choon Lee, Young Uk Kwon
  • Patent number: 11524510
    Abstract: An image forming apparatus includes an engine to form an image on an image forming medium, a paper transfer device to pick up a printing paper and transfer the paper to a transfer path, a sensor to sense a printing paper at a predetermined position on the transfer path, and a processor to determine whether a transfer delay occurs, when the printing paper is sensed, and adjust a pickup timing to advance a pickup of a printing paper of a next page.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: December 13, 2022
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Ui Choon Lee, Chun Sub Ryu
  • Patent number: 11418889
    Abstract: A back plate is disposed in a vibration area of a MEMS microphone. The back plate includes a central area located at a central portion of the back plate and having a plurality of acoustic holes formed therein, and a peripheral area located to surround the central area. The acoustic holes are arranged to be spaced apart from each other by the same interval.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: August 16, 2022
    Assignee: DB Hitek Co., LTD.
    Inventors: Jong Won Sun, Han Choon Lee, Kum Jae Shin
  • Publication number: 20220195327
    Abstract: The present disclosure relates to a synthetic vegetable oil and an environmental-friendly flame-retardant hydraulic oil composition including the same, and a preparation method thereof, and provides a method of preparing a glycerin-ester-based lubricating base oil through a catalyst-free and rinsing-free process, a glycerin-ester-based lubricating base oil that is a synthetic vegetable oil obtained by the method, and an environmental-friendly flame-retardant hydraulic oil composition that contains the glycerin-ester-based lubricating base oil and that is capable of reducing electricity consumption by 7 to 8% compared to mineral oil-based lubricating oils due to excellent flame retardancy (with self-extinguishing function) and lubricity.
    Type: Application
    Filed: January 28, 2021
    Publication date: June 23, 2022
    Inventors: Kwang Soon KIM, Dong Choon LEE, Young Uk KWON
  • Publication number: 20220167464
    Abstract: Disclosed are a heater in the form of a film and a method for manufacturing the same. A film-type heater includes an upper film, a lower film, and a heating element having a heating part of a pattern of heating part set between the upper film and the lower film, wherein the films have a shape of a pattern of heating part by removing films other than the pattern of heating part.
    Type: Application
    Filed: April 7, 2020
    Publication date: May 26, 2022
    Applicant: LATTRON CO.,LTD.
    Inventors: Jae Choon LEE, Chung Kook LEE, Young Seong WANG
  • Publication number: 20220140807
    Abstract: This invention focuses on minimizing the hot spots on a filter chip by creating thermal radiators using the mechano-acoustic structures and connection circuitry. A gradual increase of metal to wafer relation is made to provide better heat dissipation and heat sinking. Preferably the shunt lines of the ladder type arrangement of SAW resonators (RS1, RS2, RS3) comprise a broadened section (BBCN).
    Type: Application
    Filed: January 24, 2020
    Publication date: May 5, 2022
    Inventors: Kamran CHEEMA, Bambang KUNARDI, Yu Jen CHONG, Chong Choon LEE
  • Patent number: 11299528
    Abstract: Methods of treating an autoimmune disease such as rheumatoid arthritis, methods of increasing apoptosis of pro-inflammatory immune cells or synoviocytes, methods of increasing the quantity of the anti-inflammatory regulatory T cells, and methods of slowing the progression of inflammation in a subject include systemically administering to the subject a pharmaceutical composition including an effective amount of a TRAIL-conjugate. Preferably, the TRAIL-conjugate is effective for at least 3 days, more preferably at least 7 days, without being part of a nanocomplex that modulates the circulation half-life or release kinetics of the TRAIL-conjugate. Combination therapies including administering a second active agent, most preferably a TNF-? inhibitor, as well as pharmaceutical composition dosage units including a TRAIL-conjugate and a TNF-? inhibitor in an effective amount for a single once weekly dose for treatment of rheumatoid arthritis are also provided.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: April 12, 2022
    Assignee: D&D PHARMATECH INC.
    Inventors: Kang Choon Lee, Ha Na Eom
  • Publication number: 20220079238
    Abstract: Provided is a heater for a ciga-like electronic cigarette with a heat transfer efficiency improved by strengthening a bonding force between a cigarette support portion and a heater portion by thermally pressing and bonding the cigarette support portion and the heater portion together using a heat-dissipating adhesive layer with a heat-dissipating filler added to a high-heat-resistant thermoplastic polyimide resin, and a method of manufacturing the same.
    Type: Application
    Filed: November 14, 2019
    Publication date: March 17, 2022
    Inventors: Jae-choon LEE, Choung-Kook LEE, Young-seong WANG
  • Patent number: 11259125
    Abstract: A MEMS microphone includes a substrate presenting a vibration area, a supporting area surrounding the vibration area and a peripheral area surrounding the supporting area, the substrate defining a cavity formed in the vibration area, a lower back plate being disposed over the substrate to cover the cavity and having a plurality of lower acoustic holes, a diaphragm being disposed over the lower back plate, the diaphragm being spaced apart from the lower back plate and configured to generate a displacement thereof in response to an applied acoustic pressure, an upper back plate being disposed over the diaphragm, the upper back plate being spaced apart from the diaphragm and having a plurality of upper acoustic holes, and an intermediate anchor being in contact with an upper surface of the lower back plate in the supporting area, the intermediate anchor being configured to support the diaphragm to space the diaphragm from the lower back plate, and to provide elasticity for the diaphragm.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: February 22, 2022
    Assignee: DB HITEK CO., LTD.
    Inventors: Han Choon Lee, Hyeok In Kwon, Jong Won Sun, Dong Chun Park, Ye Eun Na
  • Publication number: 20220034132
    Abstract: Disclosed is a two way swinging door opening gap control device for controlling the movements of companion animals that is detachably attached to the existing door and door frame with ease, without any structural change or damage, thereby being applied conveniently to various types of doors, and that controls an opening gap of the door to allow the companion animals to freely enter through the door, to prevent the door from being excessively opened by external wind or animals entering therethrough, and to limit the spaces the animals can enter according to animal sizes to thus provide individual living spaces for the animals. According to the present invention, the opening gap control device largely includes a gap control band 100, a locking pin module 200, and a locking holder module 300.
    Type: Application
    Filed: July 20, 2021
    Publication date: February 3, 2022
    Inventor: Sang Choon LEE
  • Publication number: 20210400930
    Abstract: A method for adjusting an aquarium water temperature through direct heat exchange by a water temperature adjustment apparatus for an aquarium includes: a first step of allowing a smart sensor unit to measure the temperature of the water; a second step of controlling a heat exchange adjuster that sunk in the water to adjust the temperature of the water based on the temperature of the water measured by the smart sensor unit; and a third step of allowing the heat exchange adjuster to adjust direct heat exchange with the water.
    Type: Application
    Filed: March 11, 2019
    Publication date: December 30, 2021
    Inventor: Han Choon LEE