Patents by Inventor Doo Choi

Doo Choi 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).

  • Patent number: 12366239
    Abstract: Provided are a pump, an apparatus for supplying a chemical liquid and an apparatus for processing a substrate. The pump includes a tube having elasticity and having a flow path through which a chemical liquid flows in; and a case having an internal space partitioned into at least two chambers through which gas is supplied or discharged, where the at least two chambers cover an outer circumference of the tube. Using the pump, the apparatus for supplying a chemical liquid and the apparatus for processing a substrate, by an operation in which gas is supplied or discharged into each partitioned chamber in the case, by applying or releasing pressure to the outer circumference of each corresponding tube independently without interfering between the internal pressures between the chambers, efficient pumping operation of the pump may be obtained, and precise control of the discharge pressure of the liquid may be implemented.
    Type: Grant
    Filed: February 5, 2023
    Date of Patent: July 22, 2025
    Assignee: SEMES CO., LTD.
    Inventors: Young Jun Son, Woo Sin Jung, Woo Ram Lee, Byoung Doo Choi, Sung Chul Jung
  • Publication number: 20250218823
    Abstract: A cover module includes a base portion, a cover portion disposed on an upper portion of the base portion, the cover portion including an upper plate, a first cover disposed at a first end of the upper plate to be openable and closable, and a second cover disposed at a second end of the upper plate to be openable and closable, and a gas supply unit including a first supply portion disposed on the upper plate and a second supply portion disposed on at least one of the first cover and the second cover.
    Type: Application
    Filed: October 30, 2024
    Publication date: July 3, 2025
    Inventors: Sung Gyu LEE, Ji Young CHOI, Byoung Doo CHOI
  • Publication number: 20250216787
    Abstract: The present disclosure provides an edge bead removal method in which initial position coordinates of an edge bead removal nozzle are set to both an X-axis value and a Y-axis value, a substrate treatment apparatus performing the same, and a substrate treatment method. The substrate treatment apparatus includes a first unit performing a coating process of forming a film on a substrate, and a controller controlling the first unit. The coating process includes a liquid supply operation of supplying a first liquid to the rotating substrate to form the film on the substrate, and an edge bead removal (EBR) operation of supplying a second liquid to the rotating substrate to remove a portion of the film formed in an edge region of the substrate.
    Type: Application
    Filed: September 9, 2024
    Publication date: July 3, 2025
    Inventors: Sung Gyu LEE, Ki Hoon LIM, Jun Ho KIM, A Rah CHO, Byoung Doo CHOI
  • Patent number: 12331736
    Abstract: Provided is a pump for supplying a liquid. The pump includes: a tube including a pump chamber communicating with a chemical liquid inlet and a chemical liquid outlet, and configured to discharge a chemical liquid through a change in volume due to contraction and expansion; and a driving unit contracting or expanding the tube in a longitudinal direction, in which the tube includes: a flexible tube body including a pump chamber which has an increased internal volume when is contracted in a longitudinal direction and has a decreased internal volume when is expanded in the longitudinal direction, and which has a jar shape of which a radius is increased from the chemical liquid inlet to a center of the pump chamber, and the radius is decreased from the pump chamber to the chemical liquid outlet; a first flange provided at one end of the tube body and including the chemical liquid inlet; and a second flange provided at the other end of the tube body and including the chemical liquid outlet.
    Type: Grant
    Filed: August 31, 2022
    Date of Patent: June 17, 2025
    Assignee: SEMES CO., LTD.
    Inventors: Young Jun Son, Byoung Doo Choi, Sung Chul Jung, Woo Sin Jung, Young Un Yun, Woo Ram Lee, Ki Sang Eum
  • Publication number: 20250172883
    Abstract: Provided are an exhaust device and a substrate processing apparatus. The exhaust device includes a bowl disposed around a support unit supporting and rotating a substrate, an exhaust duct configured to surround a side portion of the bowl and connected to the side portion of the bowl, and a discharge duct formed outwardly of the exhaust duct, in a rotational direction of the support unit.
    Type: Application
    Filed: September 12, 2024
    Publication date: May 29, 2025
    Inventors: A Rah CHO, Jong Wha KANG, Woo Ram LEE, Byoung Doo CHOI, Eun Hyeok CHOI, Sung Gyu LEE, Da Mi CHONG
  • Publication number: 20250082787
    Abstract: The present invention provides an alginic acid-based injectable hydrogel system for labeling an accurate position of a disease lesion and effectively delivering a drug to a target region. The formulation of the present invention can make it easy to locally inject a contrast agent and a drug into a target region while controlling the release rate of the contrast agent or the drug, with the formation of the hydrogel in the injected region. Through the advantages, the labeled position can be accurately determined from images, thereby enhancing the precision of surgical operation, with a minimal incision formed therefor. In addition, when used, the alginic acid-based injectable hydrogel system allows the effective local delivery of a drug to a target region while increasing the long-acting effect of the drug.
    Type: Application
    Filed: November 21, 2024
    Publication date: March 13, 2025
    Applicant: National Cancer Center
    Inventors: Yong Doo CHOI, Seon Sook LEE, Hyun Jin KIM, Dae Kyung SOHN, Seok Ki KIM, Young Woo KIM, Keun Won RYU, Hong Man YOON
  • Patent number: 12230510
    Abstract: A substrate treating apparatus is disclosed. The substrate treating apparatus includes a treating container having a treatment space to treat a substrate, a standby port positioned at one side of the treating container to allow a nozzle, which discharges a treatment liquid, to stand by, and a liquid supplying unit moving between the treating container and the standby port and having the nozzle. The standby port includes a nozzle receiving member including a nozzle receiving unit having a receiving space formed inside the nozzle receiving unit to receive the nozzle and a cleaning liquid and a discharge part having a discharge port provided at one side of the nozzle cleaning unit to discharge the cleaning liquid to the nozzle. The discharge port is provided to overlap at least a portion of the nozzle when viewed from above.
    Type: Grant
    Filed: December 31, 2021
    Date of Patent: February 18, 2025
    Assignee: SEMES CO., LTD.
    Inventors: Byoung Doo Choi, Jin Ho Choi
  • Patent number: 12228861
    Abstract: An apparatus for treating a substrate includes a treating vessel having an inner space, a support unit that supports and rotates the substrate in the inner space, and an exhaust unit that releases an air flow in the inner space. The exhaust unit includes an air-flow guide duct into which the air flow is introduced in a tangential direction with respect to a rotating direction of the substrate supported on the support unit.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: February 18, 2025
    Assignee: SEMES Co., Ltd.
    Inventors: Ki Sang Eum, Jin Ho Choi, Sun Wook Jung, Byoung Doo Choi, Hee Man Ahn, Si Eun Kim
  • Publication number: 20240390526
    Abstract: Near-infrared fluorescent dye-loaded microspheres and a formulation thereof that include a complex of a near-infrared fluorescent dye and human serum albumin or cyclodextrin loaded into polymer microspheres, optionally with a hydrogel polymer. The near-infrared fluorescent dye-loaded microspheres are used in a method of marking lesions for accurately identifying the location of lesion sites from fluorescence imaging during surgery. The method involves injecting the microspheres into lesion sites in a subject, such as cancer. The intensity of fluorescence generated from the microspheres is stronger than that when microspheres are prepared using a near-infrared fluorescent dye alone, the stability of the fluorescent dye in the microspheres is improved, and the marked sites can be identified through fluorescent imaging for a long period of time, increasing the accuracy of surgery for lesion excision, and shortening the time required for surgery.
    Type: Application
    Filed: August 2, 2024
    Publication date: November 28, 2024
    Applicant: National Cancer Center
    Inventors: Yong Doo CHOI, Hyoung Jun KIM
  • Patent number: 12140868
    Abstract: The inventive concept provides a substrate treating apparatus. The substrate treating apparatus includes substrate treating apparatus comprising: a treating container having an inner space; a support unit configured to support and rotate a substrate within the inner space; an exhaust duct configured to exhaust the inner space; and at least one guide member combined with the treating container and configured to guide an airflow within the inner space, and wherein the at least one guide member is arranged such that the airflow within the inner space obliquely flows with respect to a rotation direction of the substrate supported by the support unit when seen from above.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: November 12, 2024
    Assignee: SEMES CO., LTD.
    Inventors: Sun Wook Jung, Ki Sang Eum, Jin Ho Choi, Byoung Doo Choi, Hee Man Ahn
  • Patent number: 12125717
    Abstract: An apparatus for treating a substrate, the apparatus comprising: a processing container having an inner space; a support unit having a support plate configured to support and rotate the substrate in the inner space; a liquid supply unit supplying treating liquid to the substrate supported by the support unit; and an exhaust unit exhausting an air flow in the inner space, wherein the processing container includes a bottom wall and a side wall extending from the outside end of the bottom wall, the processing container including a first gas-liquid separator provided at the side wall.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: October 22, 2024
    Assignee: SEMES CO., LTD.
    Inventors: Ki Sang Eum, Jin Ho Choi, Byoung Doo Choi, Seung Han Lee, Sun Wook Jung, Si Eun Kim
  • Publication number: 20240307393
    Abstract: It is an object of the present invention to provide a composition for ameliorating, preventing or treating cancer, comprising a CDK4/6 inhibitor and a tricyclic antidepressant as active ingredients. If the composition comprising a CDK4/6 inhibitor and a tricyclic antidepressant according to the prevention invention is administered in combination, anti-cancer synergistic effects are exhibited such that the survival rate of cancer cells is remarkably reduced compared to that of a group treated with the CDK4/6 inhibitor or tricyclic antidepressant alone. In addition, since the effect of reducing side effects of CDK4/6 inhibitors is also exhibited by administration of the composition according to the present invention, the composition comprising a CDK4/6 inhibitor and a tricyclic antidepressant as active ingredients can be effectively used as a preventive or therapeutic agent for cancer.
    Type: Application
    Filed: June 30, 2022
    Publication date: September 19, 2024
    Applicant: NATIONAL CANCER CENTER
    Inventors: Yong Doo CHOI, Sung Ho GOH
  • Publication number: 20240222163
    Abstract: Provided is a substrate processing apparatus that processes a semiconductor substrate using a laser and a semiconductor manufacturing equipment including the same. The substrate processing apparatus comprises a chamber for providing a space where a substrate is processed; a support module disposed within the chamber and for supporting the substrate; and a laser signal generation module disposed in the chamber and for transmitting a laser signal onto the substrate to heat-treat the substrate, wherein the laser signal generation module heat-treats the substrate including a photoresist layer.
    Type: Application
    Filed: November 9, 2023
    Publication date: July 4, 2024
    Applicant: SEMES CO., LTD.
    Inventors: Ju Won KIM, Dongwoon PARK, Gi Hun JUNG, Byoung Doo CHOI, A Rah CHO, Jong Hyuk PARK
  • Publication number: 20240123092
    Abstract: Provided is a conjugate for photodynamic diagnosis or treatment in which a peptide binds with a photosensitizer via an intracellularly degradable linkage, and a composition for photodynamic diagnosis or treatment including the same. The conjugate generates no fluorescent signal and reactive oxygen in normal tissues or during the circulation in the blood by quenching a fluorescent signal and reactive oxygen generation ability of the photosensitizer. After the conjugate is selectively absorbed into target cells, a linker is degraded in cells to increase the distance between tryptophan included in the peptide and the photosensitizer, and the quenching action is terminated to generate a strong fluorescence signal and induce active generation of reactive oxygen. The conjugate has high tissue permeability, shows a high photodynamic therapeutic effect in only target cells while being safe in normal cells, and can obtain a good diagnostic image having a high ratio of target signal to background.
    Type: Application
    Filed: September 15, 2023
    Publication date: April 18, 2024
    Applicant: NATIONAL CANCER CENTER
    Inventors: Yong-Doo CHOI, Ji-Su Kim, Hyun Jin Kim
  • Publication number: 20240110097
    Abstract: Disclosed is a liquid mulching agent composition, which is environmentally friendly due to use of seaweed, facilitates soil coating, and has high light blocking efficiency, making it possible to control heat retention and water content in the soil. The liquid mulching agent composition includes a seaweed extract, a first component including at least one selected from the group consisting of humic acid, fulvic acid, and charcoal, and a second component including at least one selected from the group consisting of sodium alginate, polyvinyl alcohol, keratin, and sodium silicate.
    Type: Application
    Filed: March 29, 2023
    Publication date: April 4, 2024
    Inventor: Young Doo CHOI
  • Publication number: 20230408925
    Abstract: The inventive concept provides a substrate treating apparatus. The substrate treating apparatus includes substrate treating apparatus comprising: a treating container having an inner space; a support unit configured to support and rotate a substrate within the inner space; an exhaust duct configured to exhaust the inner space; and at least one guide member combined with the treating container and configured to guide an airflow within the inner space, and wherein the at least one guide member is arranged such that the airflow within the inner space obliquely flows with respect to a rotation direction of the substrate supported by the support unit when seen from above.
    Type: Application
    Filed: May 20, 2022
    Publication date: December 21, 2023
    Inventors: SUN WOOK JUNG, KI SANG EUM, JIN HO CHOI, BYOUNG DOO CHOI, HEE MAN AHN
  • Patent number: 11849135
    Abstract: A video device to determine picture count information for decoding video pictures is provided. The video device decodes a picture order count (POC) most significant bit (MSB) first flag that indicates whether a POC MSB second flag is present. When the POC MSB second flag is present, the video device decodes the POC MSB second flag indicating whether a POC MSB cycle element is present. When the POC MSB cycle element is present, the video device decodes the POC MSB cycle element that specifies a value of a POC MSB cycle. The value of the POC MSB cycle is used to compute a POC MSB value that is combined with a POC least significant bit (LSB) value to produce a POC value used for decoding a first video picture, and a length of the POC LSB value is based on a maximum POC LSB minus four value.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: December 19, 2023
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Sachin G. Deshpande, Byeong-Doo Choi
  • Publication number: 20230382968
    Abstract: Immune cells expressing IL-7, CCL19, or a combination thereof, and a composition containing the immune cells, which is useful for preventing or treating cancer or infectious diseases are disclosed. A method for preventing or treating cancer or infectious diseases, which include administering a therapeutically effective amount of single type of immune cells, specifically natural killer cells, is also disclosed. Complementary immune responses between the patient's endogenous T cells and injected natural killer cells exhibit multifaceted and synergistic therapeutic effects. Co-administration of T cells and the immune cells other than T cells, specifically natural killer cells, also significantly improves therapeutic effects by allowing these heterogeneous cell populations to act in a lesion-concentrated manner.
    Type: Application
    Filed: October 28, 2021
    Publication date: November 30, 2023
    Applicant: TSD LIFE SCIENCES CO., LTD.
    Inventors: Ki Doo CHOI, Dohyun SON, Milim LEE, Sanghyeon OH
  • Patent number: 11826160
    Abstract: The purpose of the present invention is to diagnose a neurological disease such as dementia by using virtual reality, and the present invention receives a neurological disease-diagnosing problem from an external device, displays a virtual reality image through a display on the basis of the received neurological disease-diagnosing problem, and performs an examination using the virtual reality image according to user actions detected through various sensors. This process can be performed when linked with an external device such as a PC or a smart phone. Particularly, with respect to the neurological disease-diagnosing problem, the present invention includes: a first screen for introducing at least one object in a virtual reality space and hiding the same; and a second screen having a question on the hidden object. According to the present invention, neurological disease such as dementia can be conveniently examined without inconveniencing or burdening a patient.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: November 28, 2023
    Assignee: Samsung Life Public Welfare Foundation
    Inventors: Duk Lyul Na, Ko Woon Kim, Ju Hee Chin, Byung Hwa Lee, Jong Doo Choi, Jee Hyun Choi, Hio Been Han
  • Patent number: 11813332
    Abstract: The present invention relates to a conjugate for photodynamic diagnosis or treatment in which a peptide binds with a photosensitizer via an intracellularly degradable linkage, and to a composition for photodynamic diagnosis or treatment including the same.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: November 14, 2023
    Assignee: NATIONAL CANCER CENTER
    Inventors: Yong-Doo Choi, Ji-Su Kim