-
公开(公告)号：US12208417B2
公开(公告)日：2025-01-28
申请号：US17325669
申请日：2021-05-20
Inventor： Yong Tae Kim , Kyung Min Baik , Sung Mok Kim , Hyung Jin Lee , Il Doh
Abstract: The present invention relates to a flat-plate focusing ultrasonic transducer and an acoustic lens composed of an annular array piezoelectric element and methods of manufacturing and designing thereof, more particularly to a flat-plate focusing ultrasonic transducer composed of an annular array piezoelectric element, wherein the annular array piezoelectric element has a plurality of concentric regions which is concentrically arranged in a concentric circle shape with respect to a center point, the concentric region has ring shaped sound insulation regions and piezoelectric regions which are alternatively formed in a direction from the center point to a radius direction, so as to focus a sound wave near a focal point, wherein the piezoelectric regions are composed of a piezoelectric ring that is composed of a piezoelectric material and thus excites a sound wave, the concentric region is in a shape of a flat-plate of which both sides are flat and which has a constant thickness, and each radius of the plurality of the sound insulation regions and the piezoelectric regions in the concentric region are calculated based on a set focal length of the ultrasonic transducer and a frequency of a set sound wave.
-
公开(公告)号：US11932542B2
公开(公告)日：2024-03-19
申请号：US17649092
申请日：2022-01-27
Inventor： Prashant Narute , Seong-Gu Hong
IPC: B29C59/18 , B29C61/02 , B29C65/00 , B32B3/28 , B32B9/00 , B32B9/04 , B32B27/28 , B32B27/30 , B32B27/36 , B32B38/00 , B82Y40/00 , C01B32/194 , C23C16/26 , H01B5/14 , B29C43/02 , H01B1/04
CPC classification number: C01B32/194 , B29C59/18 , B29C61/02 , B29C66/73715 , B32B3/28 , B32B9/007 , B32B9/045 , B32B27/281 , B32B27/283 , B32B27/306 , B32B27/36 , B32B38/004 , B82Y40/00 , C23C16/26 , B29C2043/025 , B32B2313/04 , H01B1/04 , H01B5/14
Abstract: A large-area wrinkled graphene substrate capable of being manufactured in a large-area, and a method for manufacturing the same is provided. A method for manufacturing a wrinkled graphene substrate includes: i) providing a graphene unit; ii) inserting a carrier film and a graphene unit between a pair of rolls and rotating the pair of rolls in opposite directions to attach a carrier film on the graphene unit, iii) immersing the graphene unit in an etching solution to provide graphene, iv) between a pair of rolls, graphene and poly(4-styrene sulfonic acid)/polystyrene (PSS/PS) substrate attaching graphene onto the PSS/PS substrate, v) attaching an ethylene vinyl acetate/polyethylene terephthalate (EVA/PET) substrate to wrinkled graphene on PSS/PS substrate by inserting EVA/PET and WGr/PSS/PS stack between the rolls, viii) removing the PSS/PS substrate by immersing PET/EVA/WGr/PSS/PS stack in water, and ix) providing a wrinkled graphene substrate on the EVA/PET substrate.
-
公开(公告)号：US11906281B2
公开(公告)日：2024-02-20
申请号：US16610692
申请日：2018-01-26
Inventor： Young-sik Ghim , Hyug-gyo Rhee
CPC classification number: G01B11/0675 , G01B9/02044 , G01N21/55 , G02B27/14 , G01B2290/70
Abstract: The present disclosure relates to an apparatus and method for measuring the thickness and refractive index of a multilayer thin film by measuring angle-resolved spectral reflectance according to light polarization. According to an exemplary embodiment of the present disclosure, the apparatus and method for measuring the thickness and refractive index of a multilayer structure using angle-resolved spectroscopic reflectometry is capable of measuring and analyzing thickness and refractive index of each layer of a structure having a multilayer thin film through an s-polarized imaging and a p-polarized imaging of the reflective light located in a back focal plane of an objective lens which are acquired through an angle-resolved spectral imaging acquisition part.
-
264.发明公开公开(公告)号：US20240053208A1
公开(公告)日：2024-02-15
申请号：US18011919
申请日：2020-12-01
Inventor： Sangwon OH , Jeong Hyun SHIM , Seong-Joo LEE , Kwang-Geol LEE , Juil HWANG , Seung Hun SONG , Ouk Jae LEE
IPC: G01K11/00
CPC classification number: G01K11/00
Abstract: The present disclosure relates to an apparatus for measuring temperature distribution in a wide area using a diamond nitrogen vacancy center sensor and a method for fabricating the same, and disclosed is a diamond nitrogen-vacancy center sensor capable of measuring a temperature in a wide area including: a plurality of diamond thin films that are provided at different positions on an insulator and are not connected to each other, and it will be possible to measure temperature distribution in a wide area using the same.
-
公开(公告)号：US11867643B2
公开(公告)日：2024-01-09
申请号：US17050373
申请日：2019-04-15
Inventor： Hyo Chang Lee , Jung Hyung Kim , Dae Jin Seong , Hee Jung Yeom
CPC classification number: G01N22/00 , H01J37/3222 , H01J37/32715 , H01J37/32935 , H01L21/6833 , H01Q1/24 , H01Q1/523 , H01Q1/525 , H01Q9/02 , H01Q21/0031 , H01Q21/065 , H01J2237/2007
Abstract: The present invention relates to a planar-type plasma diagnosis apparatus comprising: a transmission antenna for applying a frequency-variable microwave to plasma; a reception antenna for receiving the microwave from the plasma; and a body part encompassing the transmission antenna and the reception antenna so that same are insulated from each other, wherein the upper surface of the transmission antenna for applying the microwave and the upper surface of the reception antenna for receiving the microwave are planar, and side surfaces of the upper surfaces of the transmission antenna and the reception antenna face each other.
-
Patent Agency Ranking
266.发明公开公开(公告)号：US20230366824A1
公开(公告)日：2023-11-16
申请号：US18317677
申请日：2023-05-15
Inventor： Eun-Ah YOU , Jae-Eul SHIM , Young Jun KIM
IPC: G01N21/65 , G01N33/569 , G01N33/543 , G01N33/563
CPC classification number: G01N21/658 , G01N33/56983 , G01N33/543 , G01N33/563 , G01N2021/656 , G01N2469/20
Abstract: Provided is a digital surface-enhanced Raman scattering (SERS) sensing platform which allows quantitative detection of a substance to be detected reliably and reproducibly with an excellent limit of detection in a large dynamic range, including: a surface-enhanced Raman scattering (SERS) active reagent which includes Raman active particles including a spherical plasmonic metal core, a plasmonic metal shell having a surface unevenness, and a self-assembled monolayer including a Raman reporter positioned between the core and the shell; a Raman spectroscopic detection unit which performs Raman mapping based on a Raman spectrum which is detected by irradiating the active reagent with an excitation light; and a digital signal analysis unit which analyzes a quantitative detection signal of a substance to be detected by a combination of a Raman signal intensity calculated from the Raman spectrum and a digital count calculated from the Raman mapping.
-
267.发明授权公开(公告)号：US11662229B2
公开(公告)日：2023-05-30
申请号：US17055037
申请日：2019-05-16
Inventor： Il-Bum Kwon , Dae-Cheol Seo , Chi-Yeop Kim , Bo-Hun Choi
IPC: G01D5/353 , G01K11/322 , G01L1/24
CPC classification number: G01D5/35364 , G01K11/322 , G01L1/242
Abstract: The present invention relates to an optical fiber BOCDA sensor. A purpose of the present invention is to provide an optical fiber BOCDA sensor which uses two phase codes to control a correlation peak position, thereby further simplifying control design and device configuration and improving spatial resolution to enhance a sensing performance and detection accuracy in comparison with the prior art.
-
268.发明申请公开(公告)号：US20220349826A1
公开(公告)日：2022-11-03
申请号：US17723855
申请日：2022-04-19
Inventor： Eun-Ah YOU , Jae-Eul SHIM , Tae Geol LEE
IPC: G01N21/65
Abstract: Provided is a Raman-active nanoparticle including: a spherical plasmonic metal core; a plasmonic metal shell having surface irregularities; and a self-assembled monolayer which binds to each of the core and the shell, is positioned between the core and the shell, and includes a Raman reporter satisfying the following Chemical Formula 1: NO2—Ar—SH (Chemical Formula 1) wherein Ar is a (C6-C12) arylene group.
-
公开(公告)号：US11486700B2
公开(公告)日：2022-11-01
申请号：US16651792
申请日：2019-07-29
Inventor： Young-Sik Ghim , The Manh Nguyen , Hyug-Gyo Rhee
Abstract: The present disclosure is related to a system and a method for 3D shape measurement of a freeform surface based on high-speed deflectometry using composite patterns. More particularly, a system for profile measurement based on high-speed deflectometry using composite patterns includes: a composite pattern generation part to project a composite pattern generated by synthesizing patterns having different frequencies to a measurement object; a detector to acquire images of a deformed composite pattern reflected from the measurement object; and a phase acquisition part to acquire wrapped phases by each frequency from the composite pattern and unwrapped phases from the respective wrapped phases.
-
公开(公告)号：US20220330869A1
公开(公告)日：2022-10-20
申请号：US17853769
申请日：2022-06-29
Inventor： Kwon-Kyu YU , Yong-Ho LEE , Hyukchan KWON , Jin-Mok KIM , Sang-Kil LEE , Bokyung KIM , Min-Young KIM , Kiwong KIM
IPC: A61B5/245 , G01R33/035 , A61B5/00 , G01R33/00 , H05K7/20
Abstract: A dual-helmet magnetoencephalography measuring apparatus includes: an internal container storing a liquid refrigerant; an external container disposed to surround the internal container and including a first external helmet and a second external helmet disposed to be spaced apart from each other; a first sensor-mounted helmet disposed to surround the first external helmet between the external container and the internal container; a second sensor-mounted helmet disposed to surround the second external helmet between the externa container and the internal container; a plurality of first SQUID sensor module disposed on the first sensor-mounted helmet; and a plurality of second SQUID sensor module disposed on the second sensor-mounted helmet.
-
-
-
-
-
-
-
-
-
Search Results
563
records
(took 0.043 seconds)
