Patents by Inventor Jun Choi

Jun 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: 11533987
    Abstract: A foldable table includes a supporting frame, tabletop and auxiliary support. The supporting frame includes first and second mounting assemblies pivotally connected to each other. The tabletop includes first and second panels coupled with the first and second mounting assemblies such that the first and second panels are rotatable with respect to each other between a folded position and an unfolded position. The auxiliary support includes an auxiliary bar and one or more linking assemblies. The auxiliary bar is coupled with the supporting frame, and each of one or more linking assemblies is coupled with the first and second panels. When the first and second panels are in the unfolded position, each of the one or more linking assemblies abuts the auxiliary bar toward the first and second panels. As such, the auxiliary support provides support to the first and second panels and enhances stability of the foldable table.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: December 27, 2022
    Assignee: Inno-Sports Co., Ltd.
    Inventor: Kwan Jun Choi
  • Publication number: 20220400845
    Abstract: A supporting frame includes a mounting assembly and a plurality of leg assemblies to support the mounting assembly. The mounting assembly includes first and second mounting units, at least one of which is extendable in a longitudinal or lateral direction of the mounting assembly. In some cases, the first and second mounting units are pivotally connected to each other and each of the leg assemblies is foldable relative to the first or second mounting unit, resulting in an extendable and foldable supporting frame. A supporting structure includes a supporting frame and first and second panels connected to the supporting frame. In some cases, the supporting structure is foldable in half.
    Type: Application
    Filed: June 17, 2022
    Publication date: December 22, 2022
    Inventor: Kwan Jun Choi
  • Publication number: 20220406367
    Abstract: An electronic device includes an intelligent refresh control circuit generating an intelligent refresh pulse with a pulse that has a generation period that is adjusted based on the number of generations of an auto refresh signal during an intelligent refresh operation, and an internal refresh signal generation circuit outputting one of a self-refresh pulse including a pulse that is periodically generated by an enable signal during a self-refresh operation and the intelligent refresh pulse as an internal refresh signal.
    Type: Application
    Filed: September 21, 2021
    Publication date: December 22, 2022
    Applicant: SK hynix Inc.
    Inventors: Hyun Seung KIM, Ho Uk SONG, Tae Kyun SHIN, Min Jun CHOI, Duck Hwa HONG
  • Patent number: 11523683
    Abstract: A blow-molded unitary structure includes a panel having upper and lower panel surfaces and a ridge extending downward beyond the lower panel surface. The ridge includes a first side surface, a second side surface, and a lower ridge surface joined with the first side and second side surfaces of the ridge. The ridge further includes a plurality of depressions formed at one or more of the first side surface, second side surface and lower ridge surface. The plurality of depressions enhances the strength of the ridge, and the ridge in turn enhances the strength of the structure.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: December 13, 2022
    Assignee: Inno-Sports Co., Ltd.
    Inventor: Kwan Jun Choi
  • Patent number: 11524812
    Abstract: A blow-molded unitary structure includes a panel having first and second panel walls and a generally hollow interior between the first and second panel walls. The structure also includes a plurality of depressions, or at least one ridge, or both the depressions and ridge to enhance the strength of the structure. The plurality of depressions is monolithically formed with the panel, recessing from the second panel wall toward the first panel wall. A depression has a side wall composed of first and second segments. Cross-sectional-wise, the first and second segments have different widths and thus collectively forms a step between the first and second segments. A ridge is also monolithically formed with the panel and includes a section, at which the width of the ridge varies along the height direction of the ridge.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: December 13, 2022
    Assignee: Inno-Sports Co., Ltd.
    Inventor: Kwan Jun Choi
  • Publication number: 20220393303
    Abstract: A method of manufacturing a lithium secondary battery, which includes coating a slurry for forming a porous coating layer on a porous polymer substrate and drying the porous coating layer under a humidified condition to form a preliminary separator; forming an electrode assembly, wherein the preliminary separator is interposed between a positive electrode and a negative electrode, placing the electrode assembly into a battery case and injecting an electrolytic solution into the battery case; and thermally treating the electrode assembly. A lithium secondary battery manufactured by the method is also provided. Accordingly, the separator has significantly improved ionic conductivity compared to separators commonly used in the art.
    Type: Application
    Filed: December 18, 2020
    Publication date: December 8, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Hyun-Jun CHOI, Dae-Soo KIM, Young-Deok KIM, Seok-Koo KIM
  • Publication number: 20220389147
    Abstract: A polymerizable composition according to an embodiment includes a first polymerizable compound including isophorone diisocyanate and hexamethylene diisocyanate, and a second polymerizable compound including 4-mercaptomethyl-3,6-dithia-1,8-octanedithiol and pentaerythritol tetrakis(mercaptoacetate). An optical material which is fabricated from the polymerizable composition and has improved optical, mechanical and thermal properties is provided.
    Type: Application
    Filed: May 24, 2022
    Publication date: December 8, 2022
    Inventors: Hyuk Hee HAN, Eui Jun Choi, Kyeong Hwan You, Jung Hwan Myung, Jae Young Pai, Jeong Moo Kim, Jung Hwan Shin
  • Patent number: 11517107
    Abstract: A bar table includes a tabletop having one or more tabletop units. Each tabletop unit includes a panel and a frame coupled with the panel. At least one tabletop unit has a frame that is extendable beyond the panel of the same tabletop unit. The bar table also includes first and second connectors each for connecting the tabletop to a supporting pole. One or both of the first and second connectors are coupled with the extendable frame so that the bar table can be installed at the supporting poles of different distances.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: December 6, 2022
    Assignee: Campvalley (Xiamen) Co., Ltd.
    Inventor: Kwan Jun Choi
  • Publication number: 20220384086
    Abstract: A coil component includes a body having one surface and another surface opposing each other, opposing end surfaces each connecting the one surface and the other surface to each other, and opposing side surfaces each connecting the end surfaces to each other. An internal insulating layer is embedded in the body, and a coil portion is disposed on at least one surface of the internal insulating layer and includes the first and second lead-out portions. The body has a recess disposed in each end surface of the body to expose the first and second lead-out portions. First and second external electrodes each include a connection portion disposed in the recess to be connected to a respective one of the first and second lead-out portions, and each include a pad portion disposed on the one surface of the body. A filling portion fills the recess and covers the connection portion.
    Type: Application
    Filed: August 9, 2022
    Publication date: December 1, 2022
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Seung Mo LIM, Byeong Cheol MOON, Dong Sik YOO, Doo Ho PARK, Tae Jun CHOI, Jeong Hoon RYOU, No Il PARK, Tai Yon CHO
  • Publication number: 20220383954
    Abstract: Provided herein is a memory device for performing a program operation on memory cells. The memory device include a plurality of memory cells configured to store data, a voltage generator configured to apply program voltages to a word line coupled to the plurality of memory cells during a program operation in which the plurality of memory cells are programmed to a plurality of program states, a cell speed determiner configured to determine a program speed of the plurality of memory cells depending on a number of pulses for the program voltages applied to the word line while the program operation is being performed, and a program manager configured to change a condition for remaining program operations depending on the program speed determined by the cell speed determiner.
    Type: Application
    Filed: February 15, 2022
    Publication date: December 1, 2022
    Applicant: SK hynix Inc.
    Inventors: Hyeok Jun CHOI, Hee Sik PARK, Seung Geun JEONG
  • Publication number: 20220380724
    Abstract: The present invention relates to: a composition for promoting the proliferation of pluripotent stem cells, containing, as an active ingredient, cP1P or a pharmaceutically acceptable salt thereof; and a composition added to a stem cell culture liquid. When culturing stem cells by using a composition for promoting the proliferation of stem cells and a composition added to a stem cell culture medium, according to the present invention, sternness can be strengthened, growth can be promoted, and apoptosis can be inhibited.
    Type: Application
    Filed: January 21, 2020
    Publication date: December 1, 2022
    Applicants: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY, AXCESO BIOPHARMA CO., LTD.
    Inventors: Kye Seong KIM, Jung Jin LIM, Hyung Joon KIM, Myeong Jun CHOI, Su Jin KIM
  • Patent number: 11511321
    Abstract: A substrate processing method includes forming a high surface tension liquid film by supplying high surface tension liquid on a substrate surface, replacing the high surface tension liquid film with low surface tension liquid by supplying the low surface tension liquid to a center area of a substrate so that the low surface tension liquid impinges on the high surface tension liquid film formed on the center area of the substrate, and supplying high surface tension liquid for a predetermined period of time during the supplying the low surface tension liquid.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: November 29, 2022
    Assignee: SEMES CO., LTD.
    Inventors: Young Jin Kim, Jin Tack Yu, Bu Young Jung, Byung Sun Bang, Seung Hoon Oh, Young Jun Choi, Jong Hyeon Woo
  • Publication number: 20220375982
    Abstract: Disclosed are image sensors and methods of fabricating the same. The image sensor comprises a substrate including a plurality of pixels, a photoelectric conversion region in the substrate at each of the pixels, a gate electrode on the substrate at each of the pixels, an interlayer dielectric layer on the substrate and the gate electrode, and a contact penetrating the interlayer dielectric layer and on the gate electrode. The contact includes a lower part on the gate electrode and an upper part on the lower part and connected to a wiring line on the interlayer dielectric layer. A planar shape of the lower part of the contact is larger than that of the upper part of the contact.
    Type: Application
    Filed: December 29, 2021
    Publication date: November 24, 2022
    Inventors: Min-Jun Choi, Wonoh Ryu, Gyuhyun Lim, Myungjo Jung
  • Publication number: 20220354245
    Abstract: Disclosed are pivoting mechanisms, sliding mechanisms, frames and tables. A pivoting mechanism includes a first coupling piece, a second coupling piece and a rod. The first and second coupling pieces are pivotally coupled with each other. The rod is operated by gravity to automatically lock or unlock the first and second coupling pieces. A sliding mechanism generally includes a slider and a locking member. The slider includes a sleeve to be slidably coupled with a bar. The locking member includes a restriction piece, operated by an elastic piece to be disposed inside of the bar, to automatically lock the sleeve at a certain position of the bar.
    Type: Application
    Filed: July 6, 2021
    Publication date: November 10, 2022
    Inventor: Kwan Jun Choi
  • Patent number: 11495875
    Abstract: A thin, flexible antenna module is provided for use in a smartphone. When the antenna module is assembled in the smartphone, the antenna module provides an MST antenna and an NFC antenna. For this, the antenna module includes a flexible PCB containing coils and further includes a magnetic sheet engaged with flexible PCB. The flexible PCB and the magnetic sheet are attached to each other to form a single body.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: November 8, 2022
    Assignee: AQ CORPORATION
    Inventors: Sang Hoon Lee, Kyoung Jun Choi, Sae Rom Lee
  • Patent number: 11493849
    Abstract: Provided is an anti-reflective hardmask composition including: (a) a polymer composed of an indolocarbazole represented by the following Chemical Formula 1 or a polymeric blend containing the same; and (b) an organic solvent.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: November 8, 2022
    Assignee: OLAS CO., LTD.
    Inventors: Sang Jun Choi, Wanuk Kim
  • Publication number: 20220347524
    Abstract: An embodiment of the present invention provides a moving bike device including: a memory configured to store distance information and altitude information; a content implementation unit configured to adjust a reproduction state of content in response to a speed of a wheel depending on pedaling of a user; a controller configured to calculate a road slope from the distance information and the altitude information, and to calculate a travel distance depending on the pedaling of the user; and a road slope implementation unit configured to adjust strength of a brake in proportion to the road slope corresponding to the travel distance.
    Type: Application
    Filed: July 1, 2021
    Publication date: November 3, 2022
    Inventors: Yong-Ho Kim, Dae-Wook Park, Chang-Soo Lee, Woo-Jun Choi
  • Patent number: 11484843
    Abstract: A method of predicting membrane fouling in a reverse osmosis process includes collecting information relative to the reverse osmosis process being performed over a predetermined period of time, the collected information including a process factor and a water quality factor, the process factor including a produced water flow rate; calculating a salt removal rate and a pressure drop based on the collected information; normalizing the produced water flow rate, the salt removal rate, and the pressure drop; generating a prediction equation using normalized values of the produced water flow rate, the salt removal rate, and the pressure drop values; and predicting membrane fouling through the generated prediction equation to determine a chemical cleaning time. Process and water quality factors are normalized to temperature and/or flow rate, and the prediction equation uses the normalized factors. Both short-term and long-term predictions are made for chemical cleaning time and membrane module replacement time.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: November 1, 2022
    Inventors: Young Geun Lee, Kwang Hee Shin, Sang Ho Lee, Yong Jun Choi
  • Publication number: 20220345580
    Abstract: An example image forming apparatus includes a fan, a fan driver to drive the fan, a switching controller, and a processor to output a pulse width modulated (PWM) control signal to control the fan driver. The switching controller may include a smoothing circuit to receive the PWM control signal output from the processor and convert the PWM control signal to a direct current signal, a comparator to compare a value of the direct current signal with a reference value and output a switch control signal, and a switch to provide power to the fan driver based on the switch control signal output from the comparator.
    Type: Application
    Filed: December 3, 2021
    Publication date: October 27, 2022
    Inventors: Jun Young LEE, Young Jun CHOI, Byung Kwon LEE
  • Publication number: 20220344797
    Abstract: A thin, flexible antenna module is provided for use in a smartphone. When the antenna module is assembled in the smartphone, the antenna module provides an MST antenna and an NFC antenna. For this, the antenna module includes a flexible PCB containing coils and further includes a magnetic sheet engaged with flexible PCB. The flexible PCB and the magnetic sheet are attached to each other to form a single body.
    Type: Application
    Filed: July 13, 2022
    Publication date: October 27, 2022
    Inventors: Sang Hoon LEE, Kyoung Jun CHOI, Sae Rom LEE