Patents by Inventor Ho Yoon LEE

Ho Yoon 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: 20240113854
    Abstract: Internal phase shifting is achieved by adding a feedback divider to a feedback loop of a phase locked loop circuit configured to determine a transmission frequency of a wireless transmission terminal and adding a phase adjustment current to a loop current. Since the phase adjustment current is applied to an adder circuit, a phase difference is maintained even when the feedback loop is in a stable state, and accordingly, an output of the feedback divider maintains the phase difference with a reference frequency as intended by the phase adjustment current applied to the adder circuit.
    Type: Application
    Filed: February 21, 2023
    Publication date: April 4, 2024
    Applicants: SKAIChips Co., Ltd., Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Kang Yoon LEE, Hyung Ki HUH, Jong Wan JO, Ho Won KIM
  • Publication number: 20240075853
    Abstract: An apparatus of tilting a seat cushion of a vehicle, includes a tilting motor, a pinion gear, a sector gear, and a tilting link which perform the tilting operation of the seat cushion and exert a binding force in a tilted state of the seat cushion and are provided to be connected to both of one side and the other side of a seat cushion frame, and has two sector gears positioned on left and right sides and connected to each other by a connection bar so that, by strengthening a binding force of the front portion of the seat cushion, it is possible to secure the safety of passengers in the event of a collision.
    Type: Application
    Filed: April 13, 2023
    Publication date: March 7, 2024
    Applicants: Hyundai Motor Company, Kia Corporation, DAS CO., LTD, Faurecia Korea, Ltd., Hyundai Transys Inc.
    Inventors: Sang Soo LEE, Mu Young KIM, Sang Hark LEE, Ho Suk JUNG, Sang Do PARK, Chan Ho JUNG, Dong Hoon LEE, Hea Yoon KANG, Deok Soo LIM, Seung Pil JANG, Seon Ho KIM, Jong Seok YUN, Hyo Jin KIM, Dong Gyu SHIN, Jin Ho SEO, Young Jun KIM, Taek Jun NAM
  • Patent number: 11608522
    Abstract: The present invention relates to a method of detecting a target nucleic acid on the basis of rolling circle amplification (RCA), and more specifically, to a method of detecting a target nucleic acid, the method in which a target nucleic acid (a nucleic acid having a target nucleic acid sequence), when present, forms a circular template with a template for performing an amplification reaction, wherein during the amplification reaction, a restriction enzyme is added to further induce a new RCA reaction, thus increasing the reaction rate and sensitivity, and to an RCA composition for implementing the method.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: March 21, 2023
    Assignee: Korea University Research and Business Foundation
    Inventors: Sehyun Shin, Won-Hwi Na, Ho Yoon Lee, Hwang-Soo Kim, Ye Eun Oh
  • Publication number: 20220126284
    Abstract: The present invention relates to an extraction apparatus, extraction method, and fluidic chip for extracting a target material. In the extraction apparatus according to the present invention, in a state in which a target material is bound to a porous film in an extraction kit, when an elution solution and a magnetic solution sequentially pass, the elution solution remaining in the porous film is pushed out by the magnetic solution due to a difference in polarity, and collected in a collection chamber. In addition, even in the collection chamber, the elution solution and the magnetic solution are maintained in a stacked state due to different polarities, and in a state in which the magnetic solution in the collection chamber is physically separated from the elution solution by magnetism of a magnetism applicator, the elution solution in the collection chamber may be recovered.
    Type: Application
    Filed: February 12, 2020
    Publication date: April 28, 2022
    Applicant: Korea University Research and Business Foundation
    Inventors: Se-Hyun SHIN, Ho-Yoon LEE, Won-Hwi NA, Chan-Hee PARK
  • Publication number: 20220111318
    Abstract: The present invention relates to a method for extracting microvesicles from a biological sample, the method comprising the steps of: adding a polyvalent cationic material to the biological sample to form an aggregate in which the microvesicles and the polyvalent cationic material are aggregated by electrical force; capturing the aggregate by a capture filter while the biological sample including the aggregate passes through the capture filter; and extracting the microvesicles by allowing an elution solution to pass through the capture filter with the aggregate captured therein to isolate the microvesicles from the aggregate. Accordingly, microvesicles may be extracted using a polyvalent cationic material, without a centrifugation process.
    Type: Application
    Filed: February 12, 2020
    Publication date: April 14, 2022
    Applicant: Korea University Research and Business Foundation
    Inventors: Se-Hyun SHIN, Ho-Yoon LEE, Won-Hwi NA, Jin-Hyun KIM
  • Publication number: 20210155979
    Abstract: The present invention relates to a method of detecting a target nucleic acid on the basis of rolling circle amplification (RCA), and more specifically, to a method of detecting a target nucleic acid, the method in which a target nucleic acid (a nucleic acid having a target nucleic acid sequence), when present, forms a circular template with a template for performing an amplification reaction, wherein during the amplification reaction, a restriction enzyme is added to further induce a new RCA reaction, thus increasing the reaction rate and sensitivity, and to an RCA composition for implementing the method.
    Type: Application
    Filed: May 31, 2019
    Publication date: May 27, 2021
    Applicant: Korea University Research and Business Foundation
    Inventors: Sehyun SHIN, Won-Hwi NA, Ho Yoon LEE, Hwang-Soo KIM, Ye Eun OH