公开(公告)号：US20240283403A1

公开(公告)日：2024-08-22

申请号：US18582307

申请日：2024-02-20

Applicant: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Jae Yoon SIM ,  Young Woo JI

IPC: H03B5/04 ,  H03K3/011 ,  H03K3/0231

CPC classification number: H03B5/04 ,  H03K3/011 ,  H03K3/0231

Abstract: Disclosed an oscillator circuit device includes: a resistor circuit comprising a first resistor disposed between a first supply voltage level and an output node; a resistor-capacitor circuit comprising a second resistor and at least one capacitor disposed between the output node and a second supply voltage level and connected in series, and a switch capable of discharging electric charges accumulated in the at least one capacitor; and a comparator configured to compare a voltage level to be compared obtained from the resistor circuit with a predetermined reference to allow the switch to be opened and closed according to a comparison result.

公开(公告)号：US20240283377A1

公开(公告)日：2024-08-22

申请号：US18415874

申请日：2024-01-18

Applicant: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Kilwon CHO ,  Siyoung LEE ,  Jonghyun SON ,  Geun Yeol BAE

IPC: H02N1/00

CPC classification number: H02N1/002

Abstract: Proposed is a laterally multilayered dielectric elastomer actuator and a method of manufacturing the same. The actuator includes a polymer frame, an electrode, and a dielectric elastic portion. The polymer frame includes a first pattern with a first comb shape of a predetermined thickness and a second pattern with a second comb shape of a predetermined thickness. The electrode includes a first electrode formed on a portion of the first pattern and a second electrode formed on a portion of the second pattern. The dielectric elastic portion is interposed between the first electrode and the second electrode and contains a dielectric elastomer. Since the actuators can be laterally stacked, a multilayered actuator in which a large number (several to several thousands) of dielectric elastomer actuators stacked can be manufactured in the form of a very thin film (

公开(公告)号：US20240267504A1

公开(公告)日：2024-08-08

申请号：US18531551

申请日：2023-12-06

Applicant: LG Display Co., Ltd. ,  POSTECH Research and Business Development Foundation

Inventor： Wook-Sung KIM ,  Kwang-Hwan JI ,  Hark-Jin KIM ,  Sun-Geun PARK ,  Hyeon-Seok EO

IPC: H04N13/327 ,  H04N13/257

CPC classification number: H04N13/327 ,  H04N13/257

Abstract: An optical see-through display apparatus includes an image output module, a display panel, an optical shutter panel to adjust a transmittance of an external light for each of R, G, and B colors. The display apparatus includes an optical sensor to measure a color of the external light. The display apparatus includes a processor that generates R, G, and B shutter data through a first compensation algorithm. The first compensation algorithm is operated to: compare a color of a mixed virtual image with a color of a target mixed virtual image, and when a color difference therebetween is a threshold value or less, designate a transmittance of the optical shutter panel as a candidate transmittance, and select a candidate transmittance implementing the mixed virtual image most similar to the target mixed virtual image, and generate the R, G, and B shutter data corresponding to the selected candidate transmittance.

公开(公告)号：US20240263350A1

公开(公告)日：2024-08-08

申请号：US18536545

申请日：2023-12-12

Applicant: POSTECH Research and Business Development Foundation

Inventor： Cheol-Joo KIM ,  Seong-Jun YANG ,  Ju Hyun JUNG

IPC: C30B29/68 ,  C30B25/18 ,  C30B29/02 ,  C30B29/40

CPC classification number: C30B29/68 ,  C30B25/18 ,  C30B29/02 ,  C30B29/40 ,  G02B5/3025 ,  H01L29/66977

Abstract: Proposed are a two-dimensional vertical composite laminate including graphene and hexagonal boron nitride and a method of fabricating the same. The composite laminate includes a first layer and a second layer positioned on the first layer, in which the first layer includes a first boron nitride layer containing hexagonal boron nitride or a first graphene layer containing graphene, and the second layer includes a second boron nitride layer containing hexagonal boron nitride or a second graphene layer containing graphene. The composite laminate allows for the control of the twist angle and stacking order of each layer, so that the composite laminate can have the desired crystal structure, crystal thickness, and composition to exhibit novel physical properties.

公开(公告)号：US20240255747A1

公开(公告)日：2024-08-01

申请号：US18532542

申请日：2023-12-07

Applicant: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION ,  SEOUL NATIONAL UNIVERSITY HOSPITAL

Inventor： Ki Hean KIM ,  Chang Ho Yoon ,  Jungbin Lee ,  Soohyun Park ,  Seonghan Kim ,  Kyungbin Bae

IPC: G02B21/36 ,  G02B21/06

CPC classification number: G02B21/367 ,  G02B21/06

Abstract: Provided is a photographing apparatus including an image capturing unit including a first light source, an object lens, and a first light detector, a surface detecting unit including a second light source, the object lens, and a second light detector, a processor configured to obtain a strong reflection signal area where a reflection signal is strong in an oblique plane image obtained from the second light detector, and obtain a relative position relationship between a region of interest and a focal plane of the object lens, and an actuator configured to adjust the region of interest to be in focus.

公开(公告)号：US20240247170A1

公开(公告)日：2024-07-25

申请号：US18409085

申请日：2024-01-10

Applicant: Samsung Electronics Co., Ltd. ,  POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Yoon Seok KO ,  Dong Pyo KIM ,  Sang Soo JEE ,  Se Jun YIM

IPC: C09G1/16

CPC classification number: C09G1/16

Abstract: Provided are a polymer nanoparticle, a method of preparing the polymer nanoparticle, and a polishing slurry including the polymer nanoparticle are provided, where the polymer nanoparticle including a mixture of a hydrophobic polymer and a copolymer including both hydrophobic and hydrophilic groups, the hydrophilic group of the copolymer is disposed on an outer surface of the polymer nanoparticle.

公开(公告)号：US20240212093A1

公开(公告)日：2024-06-27

申请号：US18396411

申请日：2023-12-26

Applicant: POSTECH Research and Business Development Foundation

Inventor： Seung Yong LEE ,  Sung Hyun CHO ,  Jun Yong LEE

IPC: G06T3/4053 ,  G06T3/4046

CPC classification number: G06T3/4053 ,  G06T3/4046

Abstract: A method for generating a super-resolution video by using a multi-camera video may comprise: generating a resolution-improved ultra-wide-angle video frame at an arbitrary time step by inputting an ultra-wide-angle video frame of a first resolution at the arbitrary time step, ultra-wide-angle video frames right before and right after the arbitrary time step, and a wide-angle video frame for reference at the arbitrary time step, to a bidirectional neural network, wherein the generating of the resolution-improved ultra-wide-angle video frame is performed using accumulated information at a past time step based on the arbitrary time step, and accumulated information at a future time step based on the arbitrary time step, and wherein a second resolution, which is a resolution of the generated ultra-wide-angle video frame, is greater than the first resolution.

公开(公告)号：US20240207590A1

公开(公告)日：2024-06-27

申请号：US18543180

申请日：2023-12-18

Applicant: POSTECH Research and Business Development Foundation ,  SNTEL Co., LTD

Inventor： Geunbae LIM ,  Jungho LEE

IPC: A61M37/00

CPC classification number: A61M37/0015 ,  A61M2037/0023 ,  A61M2037/0053

Abstract: A microneedle patch according to one embodiment of the present disclosure includes: a base including an invasive part and a non-invasive part; and a microneedle located in the invasive part of the base, wherein at least a portion of the microneedle is loaded with drug, and no microneedle is located in the non-invasive part.

公开(公告)号：US20240196761A1

公开(公告)日：2024-06-13

申请号：US18533756

申请日：2023-12-08

Applicant: POSTECH Research and Business Development Foundation

Inventor： Gil Ho LEE ,  Jong Yun LEE

IPC: H10N60/80 ,  H10N60/01 ,  H10N60/12

CPC classification number: H10N60/805 ,  H10N60/0912 ,  H10N60/12

Abstract: A van der Waals stacked Josephson junction structure and a method for fabricating the same are provided. The van der Waals stacked Josephson junction structure according to an embodiment of the present disclosure includes a substrate, a first layer of a van der Waals material separable into layers and positioned on the substrate, and a second layer of the van der Waals material positioned on the first layer, in which the first layer and the second layer are twisted at a predetermined angle with each other, and a Josephson junction is formed between the first layer and the second layer.

公开(公告)号：US20240164752A1

公开(公告)日：2024-05-23

申请号：US18284462

申请日：2021-10-18

Applicant: POSCO CO., LTD ,  POSTECH Research and Business Development Foundation

Inventor： Chul-Hong KIM ,  Hyung-Ham KIM ,  Jeong-Woo PARK ,  Seong-Hee CHO ,  Jae-Woo KIM ,  Da-Som HEO ,  Byul-Lee PARK

IPC: A61B8/00 ,  A61B1/00 ,  A61B1/05 ,  A61B1/07 ,  A61B8/12

CPC classification number: A61B8/4461 ,  A61B1/00091 ,  A61B1/00094 ,  A61B1/05 ,  A61B1/07 ,  A61B8/12

Abstract: A transparent-ultrasonic-sensor-based optical-ultrasonic integrated endoscopic probe according to one embodiment of the present disclosure may comprise: an optical fiber laser unit for emitting light; a transparent ultrasonic sensor, which is arranged between an object to be measured and the optical fiber laser unit to transmit, therethrough, the light emitted from the optical fiber laser unit, coaxially aligned with the light emitted from the optical fiber laser unit, radiating ultrasonic waves at the object, and receiving reflected ultrasonic waves; and a camera for acquiring an image of the object through the transparent ultrasonic sensor.