公开(公告)号：US11944998B2

公开(公告)日：2024-04-02

申请号：US16822018

申请日：2020-03-18

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Byung Chul Lee ,  Dong-Hyun Kang ,  Jin soo Park ,  Tae Song Kim

IPC: B06B1/02 ,  B81B3/00 ,  B81C1/00

CPC classification number: B06B1/0292 ,  B81B3/0086 ,  B81C1/00698 ,  B81B2201/0271 ,  B81B2203/0127 ,  B81B2207/07 ,  B81C2201/0171 ,  B81C2201/0178 ,  B81C2201/0194

Abstract: A method of fabricating a capacitive micromachined ultrasonic transducer (CMUT) according to one aspect of the present invention may include forming, on a semiconductor substrate, a first region implanted with impurity ions at a first average concentration and a second region implanted with no impurity ions or implanted with the impurity ions at a second average concentration lower than the first average concentration, forming an insulating layer by oxidizing the semiconductor substrate wherein the insulating layer includes a first oxide layer having a first thickness on at least a part of the first region and a second oxide layer having a second thickness smaller than the first thickness on at least a part of the second region, and forming a membrane layer on the insulating layer such that a gap is defined between the second oxide layer and the membrane layer.

公开(公告)号：US20250033471A1

公开(公告)日：2025-01-30

申请号：US18514493

申请日：2023-11-20

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  Korea Institute of Science and Technology

Inventor： Dong Gu Kim ,  Jang Hyeon Lee ,  Dae Sung Kwon ,  Hyun Soo Kim ,  Il Seon Yoo ,  Byung Chul Lee ,  Seong Hun Cho ,  Seung Hyub Baek ,  Min Seok Kim ,  Soo Young Jung

IPC: B60K35/00 ,  G06F3/01 ,  G06F3/043 ,  G06F3/0482 ,  G06V20/56 ,  G06V40/10 ,  G06V40/20

Abstract: A non-contact interface device for a vehicle and a method for controlling the same, may display an operation system menu for a driver and passengers to operate various kinds of devices of the vehicle as a hologram, enable a user to operate the displayed operation system menu in a non-contact manner by use of the user's finger or the like, and provide the user with a tactile feedback for a non-contact operation, so that the user can recognize whether to have operated the menu.

公开(公告)号：US12016726B2

公开(公告)日：2024-06-25

申请号：US17326335

申请日：2021-05-21

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Byung Chul Lee ,  Shinyong Shim ,  Dong-Hyun Kang ,  Hae Youn Kim ,  Hyung Min Kim ,  Ki Joo Pahk ,  Maesoon Im

IPC: A61B8/00 ,  A61N7/00 ,  B06B1/02 ,  G01S7/52 ,  G01S15/89

CPC classification number: A61B8/4494 ,  A61B8/4488 ,  A61N7/00 ,  B06B1/0292 ,  G01S7/52079 ,  G01S15/8915 ,  A61N2007/0052 ,  B06B2201/76

Abstract: A flexible ultrasound transducer according to an embodiment of the present disclosure includes a substrate having a central part and a plurality of extended parts extending from the central part; an ultrasound probe disposed at the central part of the substrate to acquire an ultrasound image of a region of interest; and a focused ultrasound output unit disposed at the extended parts of the substrate to output a focused ultrasound to the region of interest, wherein the focused ultrasound output unit disposed at the extended parts of the substrate has a flexible property and is deformable. According to the structure of an embodiment, it is possible to simultaneously achieve ultrasound imaging and ultrasonic therapy such as lesion stimulation or removal through focused ultrasound, and adjust the focal position of focused ultrasound or improve the focal sensitivity through flexible movement.

公开(公告)号：US11957514B2

公开(公告)日：2024-04-16

申请号：US17273308

申请日：2021-02-01

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Byung Chul Lee ,  Dong-Hyun Kang ,  Shinyong Shim

IPC: A61B8/00 ,  A61B8/08

CPC classification number: A61B8/4483 ,  A61B8/5207

Abstract: The present disclosure relates to a method for determining a relative position between arrays of a flexible array device. The flexible array device according to an embodiment includes a plurality of arrays arranged at a predetermined interval in a deformable substrate, and the method includes measuring the first capacitance between adjacent arrays, measuring the second capacitance between the adjacent arrays after deformation of the substrate, and determining a relative position between the adjacent arrays based on the first capacitance measurement value and the second capacitance measurement value. According to an embodiment, the relative position between the arrays may be determined by measuring the capacitance between the adjacent arrays of the plurality of arrays arranged in the deformable substrate and measuring a change in capacitance caused by the deformation (contraction, relaxation, bending) of the substrate.

公开(公告)号：US20200061904A1

公开(公告)日：2020-02-27

申请号：US16548412

申请日：2019-08-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyung Min Kim ,  Ki Joo Pahk ,  Byung Chul Lee ,  Inchan Youn

IPC: B29C64/106 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: According to an embodiment of the present disclosure, there is provided a completely new type of 3-dimensional (3D) printing method for producing an object by focusing ultrasound onto material that changes in state by stimulation to solidify it into a desired shape. The method for 3D printing according to an embodiment includes providing material which changes in state by stimulation, setting a target focal point in the material, focusing ultrasound onto the target focal point using at least one ultrasound transducer, and applying stimulation to the material using the focused ultrasound to induce a change in state of the material. According to the embodiments, it is possible to control the precision of the output by controlling the frequency of the ultrasound transducer or the size of the target focal point on system.

公开(公告)号：US20190322524A1

公开(公告)日：2019-10-24

申请号：US16294032

申请日：2019-03-06

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Byung Chul Lee ,  Jin Soo Park ,  Mintack Oh ,  Jin Hyun Kim

IPC: B81C1/00 ,  H01L21/762

Abstract: A membrane device includes a trench substrate having trenches and a membrane having wrinkles. The membrane is not bonded to the trenches of the trench substrate but is bonded to the surface of the trench substrate in the shoulders of the trenches. Hills and valleys are alternately arranged in the membrane along the trenches. The membrane device can be used in various applications (for example, sensors) based on variations in the electrical properties of the membrane caused by a change in the shape of the wrinkles (a change in the strain) of the membrane in response to a change in the internal or external environment of the trenches.

公开(公告)号：US11846882B2

公开(公告)日：2023-12-19

申请号：US16923965

申请日：2020-07-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Maesoon Im ,  Byung Chul Lee ,  Young Jun Yoon ,  Jin Soo Park ,  Seung Min Kwak

IPC: G03F7/004 ,  A61N1/05 ,  A61B5/24

CPC classification number: G03F7/0041 ,  A61B5/24 ,  A61N1/0529 ,  A61B2562/125

Abstract: Disclosed is a method for manufacturing a high-density neural probe including needles having various forms. The method, in which only a photolithography process and an etching process are used, simplifies a manufacturing process of the neural probe, minimizes changes in the characteristics of the neural probe depending on process equipment or conditions, and may thus ensure a high yield, thereby being advantageous in terms of commercialization. In addition, various forms of needles may be manufactured depending on the shape of patterns included in a mask, the height of the needles may be controlled by adjusting the size of the patterns and the gap between the patterns, and thereby, a neural probe having a plurality of needles having different heights may be manufactured.

公开(公告)号：US11280781B2

公开(公告)日：2022-03-22

申请号：US16587062

申请日：2019-09-30

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Soo Hyun Lee ,  Nakwon Choi ,  Byung Chul Lee ,  Hyungbeen Lee ,  Mintack Oh

IPC: G01N33/543 ,  C12M1/00 ,  G01N29/02 ,  C12N15/10

Abstract: The present disclosure relates to an apparatus and a method for extracting genome, capable of acquiring a sufficient amount of genome for genetic analysis with high extraction efficiency, even with a small amount of target sample.

公开(公告)号：US12214380B2

公开(公告)日：2025-02-04

申请号：US16775271

申请日：2020-01-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  Inha University Research and Business Foundation ,  SEOUL NATIONAL UNIVERSITY HOSPITAL

Inventor： Byung Chul Lee ,  Rino Choi ,  Whal Lee

IPC: B06B1/02 ,  G01N29/24

Abstract: Provided is a capacitive micromachined ultrasonic transducer (CMUT) including a substrate, a top electrode provided on the substrate to be spaced apart from the substrate, a supporter made of an insulating material and coupled between the substrate and an edge of the top electrode to support and fix the edge of the top electrode and to define a gap between the substrate and the edge of the top electrode, and a plurality of nanoposts having both ends coupled and fixed to the substrate and the top electrode in the gap, and being compressible and stretchable in a longitudinal direction to at least vertically move the top electrode when power is applied to the top electrode.

公开(公告)号：US12053198B2

公开(公告)日：2024-08-06

申请号：US16857956

申请日：2020-04-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ki Joo Pahk ,  Hyung Min Kim ,  Byung Chul Lee ,  Inchan Youn

IPC: A61B17/32 ,  A61B17/00 ,  A61B90/00 ,  A61N7/00 ,  A61N7/02

CPC classification number: A61B17/320068 ,  A61N7/02 ,  A61B2017/00084 ,  A61B2017/00132 ,  A61B2017/0019 ,  A61B2017/320069 ,  A61B2090/0472 ,  A61N2007/0039

Abstract: An apparatus for tissue ablation according to an embodiment of the present disclosure includes an ultrasound output unit to output focused ultrasound, and a control unit to control an intensity of the focused ultrasound, wherein the control unit may be configured to control the intensity of the focused ultrasound below a setting value, when a first condition in which a vapor bubble is formed in a tissue or a second condition in which a temperature of the tissue reaches a threshold is accomplished during the output of the focused ultrasound to the tissue. According to this embodiment, it is possible to precisely control vapor bubble dynamics without generating the shockwave scattering effect by instantaneously controlling the acoustic pressure and the intensity of the focused ultrasound, and prevent damage to a tissue other than a lesion to be removed.