Patents by Inventor Byeonghwa Lim

Byeonghwa Lim 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).

  • Magnetic sensor based on wheatstone bridge and manufacturing method thereof
    Patent number: 11650271
    Abstract: The present invention relates to a magnetic sensor based on a Wheatstone bridge and a manufacturing method thereof. The magnetic sensor according to an embodiment includes a magnetic field sensing unit that is provided with a plurality of magneto resistors forming a resistance bridge, a magneto resistor monitoring unit that monitors resistance values of the plurality of magneto resistors, and an offset adjusting unit that adjusts a resistance value of a thin film variable resistor connected to at least one terminal among a plurality of current terminals provided in the resistance bridge based on the monitoring result of the resistance values.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: May 16, 2023
    Assignee: EV ADVANCED MATERIAL CO., LTD.
    Inventors: CheolGi Kim, Byeonghwa Lim, Jaehoon Lee, Changyeop Jeon, Taehyeong Jeon
  • Transporting, trapping and escaping manipulation device for magnetic bead biomaterial comprising micro-magnetophoretic circuit
    Patent number: 9511368
    Abstract: A device for transporting, trapping and escaping a single biomaterial using a magnetic structure, and a method of transporting, trapping and escaping of the single biomaterial using the same are provided, and a method is provided for controlling movement and direction of the single biomaterial including soft magnetic micro structure and magnetic structure in a linear, square storage, apartment type, radial soft magnetic micro structure. Accordingly, the device for transporting, trapping and escaping a single biomaterial and the method for transporting, trapping and escaping single biomaterial using the same can control movement on the lap-on-a-chip with increased precision and ease, by using magnetic force, and thus can be advantageously used in the field of magneto-resistive sensor, or categorization of single cells or biomolecules.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: December 6, 2016
    Assignee: The Industry & Academic Cooperation in Chungnam National University (IAC)
    Inventors: Cheolgi Kim, Byeonghwa Lim, Venu Reddy, XingHao Hu, KunWoo Kim, Benjamin B. Yellen
  • TRANSPORTING, TRAPPING AND ESCAPPING MANIPULATION DEVICE FOR MAGNETIC BEAD BIOMATERIAL COMPRISING MICRO-MAGNETOPHORETIC CIRCUIT
    Publication number: 20150064764
    Abstract: A device for transporting, trapping and escaping a single biomaterial using a magnetic structure, and a method of transporting, trapping and escaping of the single biomaterial using the same are provided, and a method is provided for controlling movement and direction of the single biomaterial including soft magnetic micro structure and magnetic structure in a linear, square storage, apartment type, radial soft magnetic micro structure. Accordingly, the device for transporting, trapping and escaping a single biomaterial and the method for transporting, trapping and escaping single biomaterial using the same can control movement on the lap-on-a-chip with increased precision and ease, by using magnetic force, and thus can be advantageously used in the field of magneto-resistive sensor, or categorization of single cells or biomolecules.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 5, 2015
    Applicant: The Industry & Academic Cooperation in Chungnam National University (IAC)
    Inventors: Cheolgi Kim, Byeonghwa Lim, Reddy Venu, Hu XingHao, KunWoo Kim, Benjamin B. Yellen