公开(公告)号：US20220140164A1

公开(公告)日：2022-05-05

申请号：US17574714

申请日：2022-01-13

Applicant: Hoon KIM

Inventor： Hoon KIM

IPC: H01L31/0352 ,  H01L27/146 ,  H01L31/103

Abstract: A photodetector includes a metal layer that shields incident light and generates surface plasmon polaritons (SPPs), a light absorbing layer that absorbs the generated SPPs and allows charges excited by the absorbed SPPs and a localized electric field effect to tunnel, a dielectric formed at nanoholes in which at least a part of the metal layer is opened, and a semiconductor layer that induces the photocurrent based on an electric field effect of tunneled electrons. The SPPs form localized surface plasmons (LSPs) at an interface where the metal layer meets the dielectric.

公开(公告)号：US11302836B2

公开(公告)日：2022-04-12

申请号：US16919925

申请日：2020-07-02

Applicant: Hoon Kim

Inventor： Hoon Kim

IPC: H01L31/0352 ,  H01L27/146 ,  H01L31/103

Abstract: A plasmonic field-enhanced photodetector is disclosed. The photodetector absorbs surface plasmon polaritons (SPPs) by using a light absorbing layer having a conduction band and a valence band in which an energy is split, the SPPs being generated by combining surface plasmons (SPs) with photons of a light wave, and generates photocurrent based on the absorbed SPPs.

公开(公告)号：US11239270B2

公开(公告)日：2022-02-01

申请号：US16729444

申请日：2019-12-29

Applicant: Hoon Kim

Inventor： Hoon Kim

IPC: H01L27/146 ,  H01L27/32 ,  H01L31/036 ,  H01L31/113 ,  G02F1/1333 ,  G02F1/13357 ,  G06K9/00 ,  G06F3/041 ,  G06F3/042 ,  G02F1/133

Abstract: A thin-film transistor (TFT) photodetector for a display panel is provided. The TFT photodetector includes an amorphous transparent substrate used as the display panel, a source formed of amorphous silicon or polycrystalline silicon on the transparent substrate, a drain formed of amorphous silicon or polycrystalline silicon, opposite to the source on the transparent substrate, an active layer formed between the source and the drain and having a current channel formed between the source and the drain, an insulating oxide film formed on the source, the drain, and the active layer, and a light receiving part formed on the insulating oxide film and configured to absorb light. When light is incident on the light receiving part, electrons migrate by tunneling through the insulating oxide film between the light receiving part and the active layer which have been excited with the insulating oxide film in between, the amount of charge in the light receiving part is changed by the migration of the electrons, a threshold voltage of the current channel is changed due to the change of the amount of charge, and photocurrent flows through the current channel due to the change of the threshold voltage.

公开(公告)号：US20210353395A1

公开(公告)日：2021-11-18

申请号：US17322813

申请日：2021-05-17

Applicant: Pilseong Kim ,  Tae Hoon Kim

Inventor： Pilseong Kim ,  Tae Hoon Kim

IPC: A61C17/06 ,  A61B90/00

Abstract: A suction system includes a cup-shaped High Vacuum Evacuation (HVE) device including a first body portion including a second end, the first body portion including a channel at the second end and a first through hole extending through the first body portion, and a second body portion including a first end, the second body portion including a second through hole extending through the second through hole at the first end, a shield/visor connected to the cup-shaped High Vacuum Evacuation (HVE) device at the second end of the first body portion at the channel, and a coupling configured to connect the first end of the second body portion to a nozzle, the nozzle being in fluid communication with a built-in drain line.

公开(公告)号：US10853641B2

公开(公告)日：2020-12-01

申请号：US15309439

申请日：2015-05-08

Applicant: IRITECH, INC. ,  Dae Hoon Kim

Inventor： Dae Hoon Kim ,  Hyeong In Choi ,  Byoung Jin Jun ,  Haeng Moon Kim ,  Seung Min Paik

IPC: G06K9/00 ,  G06K9/20

Abstract: The present invention relates to an apparatus and a method for acquiring an iris image outdoors and indoors and, specifically, to an apparatus and a method for acquiring an iris image outdoors and indoors, the apparatus comprising: a lens for receiving the iris image; an image sensor for sensing the iris image inputted through the lens; and a memory for storing the iris image sensed by the image sensor, wherein a band-pass filter using all or parts of outdoor iris recognition wavelength bands (920-1,500 nm) in order to acquire the iris image in which a reflected image is prevented or a reflected noise is reduced, which are generated when the iris image is photographed indoors and outdoors and, particularly, outdoors, is provided at the front end of the image sensor, and an infrared lighting having at least one wavelength passing through the wavelength bands of the provided band-pass filter is provided.

公开(公告)号：US20200281701A1

公开(公告)日：2020-09-10

申请号：US16810635

申请日：2020-03-05

Applicant: Tae Hoon Kim

Inventor： Tae Hoon Kim

IPC: A61C9/00 ,  A61B5/00 ,  G06T7/00

Abstract: A three-dimensional intraoral scanner includes: an outer body forming a trough, an outer surface of the outer body comprising a plastic material and an inner surface of the outer body at the trough including a transparent or translucent material, the trough being configured to fit around a row of a patient's teeth; and a sled within the outer body and configured to move along the trough, the sled including a plurality of ultrasonic sensors and a plurality of optical sensors configured to image the patient's mouth.

公开(公告)号：US10700084B2

公开(公告)日：2020-06-30

申请号：US15601501

申请日：2017-05-22

Applicant: Kyoung-Hoon Kim ,  Hong-Soo Kim ,  Ju-Yeon Lee

Inventor： Kyoung-Hoon Kim ,  Hong-Soo Kim ,  Ju-Yeon Lee

IPC: H01L27/11582 ,  H01L23/528 ,  H01L27/11556

Abstract: A vertical memory device includes a substrate including a cell region and a peripheral circuit region, gate electrodes sequentially stacked on the cell region of the substrate in a vertical direction substantially perpendicular to an upper surface of the substrate, a channel on the cell region and extending through the gate electrodes in the vertical direction, a first lower contact plug on the peripheral circuit region and extending in the vertical direction, a second lower contact plug on the peripheral circuit region adjacent to the first lower contact plug and extending in the vertical direction, and a first upper wiring electrically connected to the first lower contact plug. The first upper wiring is configured to and apply an electrical signal to the first lower contact plug. The second lower contact plug is not electrically connected to an upper wiring configured to apply an electrical signal.

公开(公告)号：US20200163595A1

公开(公告)日：2020-05-28

申请号：US16780552

申请日：2020-02-03

Applicant: Hoon KIM

Inventor： Hoon KIM

IPC: A61B5/1455 ,  A61B5/00 ,  A61B5/145

Abstract: Disclosed in an embodiment is an operating method of portable apparatus for noninvasively measuring blood glucose levels. The method includes: (a) measuring a first signal value according to ambient environmental light when an LED for measuring signals which emits light with wavelengths to be absorbed into or scattered by glucose is switched off; (b) measuring a second signal value according to light which is scattered by or transmitted through subject tissue and enters a photodetecting unit when the LED for measuring signals is switched on; (c) calculating a glucose concentration measurement of a subject by using the first signal value and the second signal value; and (d) adjusting the quantity of the light radiated from the LED for measuring signals by feeding the difference between the glucose concentration measurement and a pre-established first reference value back to the driving current for the LED for measuring signals.

公开(公告)号：US10555693B2

公开(公告)日：2020-02-11

申请号：US15430521

申请日：2017-02-12

Applicant: Hoon Kim

Inventor： Hoon Kim

IPC: A61B5/1455 ,  A61B5/145 ,  A61B5/00 ,  A61B5/01 ,  A61B5/103

Abstract: Disclosed in an embodiment is an operating method of portable apparatus for noninvasively measuring blood glucose levels. The method includes: (a) measuring a first signal value according to ambient environmental light when an LED for measuring signals which emits light with wavelengths to be absorbed into or scattered by glucose is switched off; (b) measuring a second signal value according to light which is scattered by or transmitted through subject tissue and enters a photodetecting unit when the LED for measuring signals is switched on; (c) calculating a glucose concentration measurement of a subject by using the first signal value and the second signal value; and (d) adjusting the quantity of the light radiated from the LED for measuring signals by feeding the difference between the glucose concentration measurement and a pre-established first reference value back to the driving current for the LED for measuring signals.

公开(公告)号：US10454106B2

公开(公告)日：2019-10-22

申请号：US11794287

申请日：2005-04-26

Applicant: Yang Kook Sun ,  Myung Hoon Kim ,  Shin Ho Suk

Inventor： Yang Kook Sun ,  Myung Hoon Kim ,  Shin Ho Suk

IPC: H01M4/36 ,  H01M4/485 ,  H01M4/04 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/42 ,  C01G53/00 ,  H01M4/583 ,  H01M10/052

Abstract: Disclosed herein are double-layer cathode active materials comprising a nickel-based cathode active material as an inner layer material and a transition metal mixture-based cathode active material as an outer layer material facing an electrolyte. Since the nickel-based cathode active material as an inner layer material has high-capacity characteristics and the transition metal mixture-based cathode active material as an outer layer material facing an electrolyte has superior thermal safety, the double-layer cathode active materials have high capacity, high charge density, improved cycle characteristics and superior thermal safety.