Patents by Inventor Ju-An Lee

Ju-An 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).

  • Airfoil cooling structure, airfoil having airfoil cooling structure, and turbine blade/vane element including airfoil
    Patent number: 11965428
    Abstract: An airfoil cooling structure, an airfoil having the airfoil cooling structure, and a turbine blade/vane element including the airfoil are disclosed. The airfoil cooling structure includes a cooling path formed inside the airfoil and having a first surface and a second surface opposite to the first surface, and an additive manufactured (AM) feature disposed in the cooling path, manufactured by additive manufacturing, and including a plurality of column parts intersecting with each other so as to abut against the first surface and the second surface.
    Type: Grant
    Filed: July 25, 2023
    Date of Patent: April 23, 2024
    Assignee: DOOSAN ENERBILITY CO., LTD.
    Inventors: Jeong Ju Kim, Ki Don Lee
  • Tricyclodecane dimethanol composition and preparation method of the same
    Patent number: 11964932
    Abstract: Provided are a tricyclodecane dimethanol composition, in which a ratio of structural isomers is controlled, and a preparation method thereof.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: April 23, 2024
    Assignee: SK Chemicals Co., Ltd.
    Inventors: Hee Il Chae, Ju-Sik Kang, Jeong Ho Park, Song Lee, Yu Mi Chang
  • Circular resonator, and optical modulator and optical element comprising same
    Patent number: 11966103
    Abstract: A circular resonator, and an optical modulator and an optical element comprising same. The circular resonator includes a first material, formed in a circular shape, including a plurality of nano holes and having a thermo-optic coefficient varying at a predetermined ratio according to temperature, and a second material having a thermo-optic coefficient varying in a direction opposite to the direction of change of the thermo-optic coefficient of the first material depending on temperature, the second material being filled in the plurality of nano holes, wherein an interval between the plurality of nano holes is formed at a pitch shorter than the wavelength of incident light.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: April 23, 2024
    Assignee: KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Hongsik Park, Chang-Ju Lee, Honghwi Park, Muhan Choi
  • MEMORY DEVICE AND MEMORY SYSTEM FOR USING READ COMPENSATION SCHEME AND OPERATING METHOD OF THE SAME
    Publication number: 20240127897
    Abstract: A memory device comprises: a plurality of memory blocks each including a plurality of word lines, a control operation circuit suitable for performing a read operation on each of the plurality of word lines, and a control logic suitable for: storing a plurality of default levels, which respectively correspond to the memory blocks, in an information storage region therein, controlling the control operation circuit to perform one of a first read operation using a selected default level corresponding to a selected block and a second read operation using an adjusted level smaller than the selected default level, resetting the adjusted level to the selected default level when a number of times that the second read operation is passed is greater than a number of times that the first read operation is passed, by a reference number of times or more, and storing the reset level in the information storage region.
    Type: Application
    Filed: March 23, 2023
    Publication date: April 18, 2024
    Inventor: Seon Ju LEE
  • PLURALITY OF HOST MATERIALS, ORGANIC ELECTROLUMINESCENT COMPOUND, AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    Publication number: 20240130230
    Abstract: The present disclosure relates to a plurality of host materials, organic electroluminescent compounds, and organic electroluminescent devices comprising the same. By comprising specific combinations of compounds according to the present disclosure as the plurality of host materials or by comprising a compound according to the present disclosure, it is possible to provide organic electroluminescent devices having improved lifespan characteristics compared to conventional organic electroluminescent devices.
    Type: Application
    Filed: August 8, 2023
    Publication date: April 18, 2024
    Inventors: Doo-Hyeon MOON, DaiKyu KIM, Hyo-Jung LEE, Yea-Mi SONG, Kyoung-Jin PARK, Hyun-Ju KANG, Ga-Won LEE, Mi-Ja LEE, Kyung-Hoon CHOI
  • METHOD OF RENDERING OBJECT-BASED AUDIO AND ELECTRONIC DEVICE PERFORMING THE METHOD
    Publication number: 20240129682
    Abstract: A method of rendering object-based audio and an electronic device performing the method are provided. The method includes identifying a bitstream, determining a reference distance of an object sound source based on the bitstream, determining a minimum distance for applying distance-dependent attenuation, based on the reference distance, and determining a gain of object-based audio included in the bitstream based on the reference distance and the minimum distance.
    Type: Application
    Filed: October 10, 2023
    Publication date: April 18, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju LEE, Jae-hyoun YOO, Dae Young JANG, Soo Young PARK, Young Ho JEONG, Kyeongok KANG, Tae Jin LEE
  • STORAGE DEVICE, ELECTRONIC DEVICE INCLUDING THE SAME, AND OPERATING METHOD THEREOF
    Publication number: 20240126682
    Abstract: A storage device may include: a plurality of memory dies; and a memory controller for receiving a first read request from a first function, controlling at least one memory die to perform a read operation according to the first read request, and controlling, when receiving a second read request from a second function in the course of the read operation according to the first read request, the at least one memory die to suspend the read operation according to the first read request and to perform a read operation according to the second read request based on a result obtained by comparing performance requirement information of the second function with residual time information of the second read request, which is determined according to a performance degree of the read operation being performed according to the first read request.
    Type: Application
    Filed: March 28, 2023
    Publication date: April 18, 2024
    Inventors: Seon Ju LEE, Min Hwan MOON
  • SERVICE IDENTIFYING AND PROCESSING METHOD USING LOW DISTANCE WIRELESS TERMINAL MESSAGE
    Publication number: 20240129725
    Abstract: A service identifying and processing method using a wireless terminal message according to an exemplary embodiment of the present invention includes (a) receiving a wireless terminal message by a first entity which is a mobile device; and (b) expressing, by a first agent which is an information processing application program installed on the first entity, entity information of second entity based on the wireless terminal message and service confirmation information related to service provided by the second entity, through an application screen by the first agent.
    Type: Application
    Filed: December 23, 2021
    Publication date: April 18, 2024
    Applicant: ESTORM CO., LTD.
    Inventors: Jong Hyun WOO, Tae Il LEE, Il Jin JUNG, Hee Jun SHIN, Hyung Seok JANG, Min Jae SON, Sang Heon BAEK, Seo Bin PARK, Hyo Sang KWON, Mi Ju KIM, Jung Hoon SONG, Rakhmanov DILSHOD, Dong Hee KIM, Jeon Gjin KIM
  • POWDER SUPPLY MANAGEMENT SYSTEM FOR LASER FORMING DEVICE
    Publication number: 20240123507
    Abstract: A powder supply management system for a laser forming device, includes: a hopper for discharging powder; a main sampling unit which guides a portion of the powder discharged from the hopper to the laser forming device and guides the remaining powder to be discharged to another location; and a discharge monitoring unit which calculates an amount of the remaining powder separated in the main sampling unit.
    Type: Application
    Filed: February 17, 2022
    Publication date: April 18, 2024
    Applicant: INSSTEK, INC.
    Inventors: Suk Hyun SEO, Won Hoe KIM, Seon Ju LEE
  • Flexible battery and method for manufacturing flexible battery
    Patent number: 11961957
    Abstract: A flexible battery includes an electrode group including a first electrode and a second electrode, a pair of electrode leads connected to the first electrode and the second electrode, respectively and a housing that accommodates the electrode group.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: April 16, 2024
    Assignee: LIBEST INC.
    Inventors: Joo Seong Kim, Jin Hong Ha, Gil Ju Lee
  • Negative electrode active material for lithium secondary battery, and negative electrode and lithium secondary battery including the same
    Patent number: 11962003
    Abstract: A negative electrode active material for a lithium secondary battery which includes: silicon particles; and a coating layer surrounding respective silicon particles, wherein the silicon particles have a full width at half maximum (FWHM) of peak ranging from 2 to 10 in the particle diameter distribution having an average particle diameter (D50) of 1 ?m to 30 ?m, and the coating layer includes at least one selected from the group consisting of carbon and a polymer. A negative electrode and lithium secondary battery including the negative electrode active material are also disclosed.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: April 16, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Su-Min Lee, Je-Young Kim, Se-Mi Park, Yong-Ju Lee
  • Data storage device for refreshing data and operating method thereof
    Patent number: 11961549
    Abstract: A data storage device may include a storage including a plurality of storage regions each composed of a plurality of pages; and a controller. The controller is configured to select a plurality of target open regions from open regions among the storage regions on the basis of health information of the open regions, in each of which a programmed page and an unprogrammed page coexist, and perform control so that refresh operations for the respective target open regions are performed in a time-distributed manner.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: April 16, 2024
    Assignee: SK hynix Inc.
    Inventors: Seon Ju Lee, Da Seul Lee
  • Display device and optical inspection method for the same
    Patent number: 11963394
    Abstract: A display device includes: a substrate; a display element layer disposed on the substrate, where the display element layer includes a light emitting element which emits light; a polarizing film disposed on the display element layer, where the polarizing film includes a first polarizer having a first absorption axis extending to a first direction and a first transmission axis extending to a second direction orthogonal to the first direction; and a first layer disposed on one surface of the polarizing film, where the first layer has a first phase difference. Light emitted from the display element layer has a polarizing axis, and an angle between the polarizing axis and one of the first absorption axis and the first transmission axis is in a range of about 25 degrees to about 65 degrees.
    Type: Grant
    Filed: September 18, 2023
    Date of Patent: April 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Young Lee, Eun Mi Seo, Gil Yeong Park, Min Ju Oh
  • Method of manufacturing an aramid and carbon-nanotube composite fiber
    Patent number: 11959193
    Abstract: Disclosed are a spinning dope for an aramid and carbon-nanotube composite fiber and a method of manufacturing an aramid and carbon-nanotube composite fiber using the same.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: April 16, 2024
    Assignee: Korea Institute of Science and Technology
    Inventors: Dae Yoon Kim, Ki Hyun Ryu, Bon Cheol Ku, Jun Yeon Hwang, Nam Dong Kim, Dong Ju Lee, Seo Gyun Kim
  • Inhibitors of positive strand RNA viruses
    Patent number: 11957667
    Abstract: Methods of treating a disease caused by a positive strand RNA virus. The methods include administering to a subject in need thereof an effective amount of a compound of Formula I or Formula II.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: April 16, 2024
    Assignee: National Health Research Institutes
    Inventors: Shiow-Ju Lee, Cheng-Wei Yang, Yue-Zhi Lee, Hsing-Yu Hsu
  • ENCODING/DECODING APPARATUS FOR PROCESSING CHANNEL SIGNAL AND METHOD THEREFOR
    Publication number: 20240119949
    Abstract: An encoding/decoding apparatus and method for controlling a channel signal is disclosed, wherein the encoding apparatus may include an encoder to encode an object signal, a channel signal, and rendering information for the channel signal, and a bit stream generator to generate, as a bit stream, the encoded object signal, the encoded channel signal, and the encoded rendering information for the channel signal.
    Type: Application
    Filed: November 30, 2023
    Publication date: April 11, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jeong Il SEO, Seung Kwon BEACK, Dae Young JANG, Kyeong Ok KANG, Tae Jin PARK, Yong Ju LEE, Keun Woo CHOI, Jin Woong KIM
  • Lithium Secondary Battery, Battery Module and Battery Pack
    Publication number: 20240120478
    Abstract: A lithium secondary battery includes a cathode having a cathode active material, an anode having an anode active material, a separator, and an electrolyte. The cathode active material comprises a lithium composite transition metal compound having Ni, Co, and Mn, and has single particles and/or pseudo-single particles. Each single particle consists of one nodule, and each pseudo-single crystal is a composite of 30 or fewer nodules. The single particles and/or pseudo-single particles have an average particle diameter (D50) of 1 ?m or more. The anode active material has a silicon carbon composite having an average particle diameter (D50) of more than 1 ?m. The average particle diameter (D50) of the single particles and/or pseudo-single particles is smaller than the average particle diameter (D50) of the silicon carbon composite.
    Type: Application
    Filed: August 3, 2023
    Publication date: April 11, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Su Min Lee, Sun Young Shin, Yong Ju Lee, Bumgi Heo
  • LIGHT-TRANSMITTING ANTENNA
    Publication number: 20240120656
    Abstract: A light-transmitting antenna includes a substrate, a first conductive pattern, and a second conductive pattern. The first conductive pattern has a first feeder unit, a first radiation unit, a second radiation unit, and a first connection unit. The first feeder unit and the first connection unit are connected to two sides of the first radiation unit. The first connection unit connects the first radiation unit and the second radiation unit. The second conductive pattern has a second feeder unit, a third radiation unit, a fourth radiation unit, and a second connection unit. The second feeder unit and the second connection unit are connected to two sides of the third radiation unit. The second connection unit connects the third radiation unit and the fourth radiation unit. An orthogonal projection of the second feeder unit on a first surface of the substrate at least partially overlaps the first feeder unit.
    Type: Application
    Filed: December 22, 2022
    Publication date: April 11, 2024
    Applicant: Industrial Technology Research Institute
    Inventors: Meng-Hsuan Chen, Cheng-Hua Tsai, Mei-Ju Lee, Ruo-Lan Chang, Wei-Chung Chen
  • FUEL CELL HUMIDIFIER
    Publication number: 20240120511
    Abstract: The present invention relates to a fuel cell humidifier which can prevent condensate water from entering a running fuel cell stack. A fuel cell humidifier according to an embodiment of the present invention comprises: a humidification module; a first cap having an air discharge port for supplying air humidified by the humidification; a second cap having an air inlet port for receiving the air supplied from the outside; a bypass tube for transferring condensate water, which is generated in the interior space of the first cap or flows into the interior space of the first cap from the hollow fiber membranes, to the interior space of the housing where the off-gas flows; and a condensation inducing part extending from the air discharge port to expand the humidified air so as to induce condensation of condensate water while slowing down the speed thereof.
    Type: Application
    Filed: March 3, 2022
    Publication date: April 11, 2024
    Inventors: Young Seok OH, Ah Reum LEE, Ji Yoon LEE, Kyoung Ju KIM
  • Golf club
    Patent number: D1023198
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: April 16, 2024
    Assignee: Cobra Golf Incorporated
    Inventors: Ang-Ju Lee, Christopher G. Engel, Cameron J. Day, Douglas E. Roberts, Sean Tang