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491.发明申请公开(公告)号：US20180123440A1
公开(公告)日：2018-05-03
申请号：US15690670
申请日：2017-08-30
Inventor： Sang-Gug Lee , Jeong-Il Seo , Baek-Min Lim
CPC classification number: H02M1/08 , H02M1/14 , H02M3/156 , H02M3/1563 , H02M2001/0032 , H02M2001/0054 , Y02B70/16
Abstract: A current mode hysteretic buck converter employing an auto-selectable frequency locking circuit is disclosed. The auto-selectable frequency locking type buck converter include a current mode hysteretic buck converter for converting an input DC voltage into a lower DC voltage, and a frequency locking unit for locking a switching frequency of the current mode hysteretic buck converter wherein the switching frequency is locked through adjusting a locking value of the switching frequency to be a predetermined value according to a size of a load. The buck converter is, based on the current mode hysteretic control, related to a circuit that locks the switching frequency of the converter to reduce the difficulty of designing electromagnetic interference (EMI) filters in the converter. In addition, the buck converter can improve the efficiency at light load by adjusting the switching frequency which is locked according to the load current.
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公开(公告)号：US09961344B2
公开(公告)日：2018-05-01
申请号：US15219487
申请日：2016-07-26
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , University-Industry Cooperation Group of Kyung Hee University , Korea Advanced Institute of Science and Technology
Inventor： Sung-Chang Lim , Ha Hyun Lee , Hui Yong Kim , Se Yoon Jeong , Suk Hee Cho , Hae Chul Choi , Jong Ho Kim , Jin Ho Lee , Jin Soo Choi , Jin Woo Hong , Dong Hyu Sim , Seoung Jun Oh , Gwang Hoon Park , Mun Churl Kim , Neung Joo Hwang , Sea Nae Park
IPC: H04N19/122 , H04N19/159 , H04N19/13 , H04N19/14 , H04N19/176 , H04N19/124 , H04N19/625 , H04N19/50 , H04N19/60 , H04N19/12 , H04N19/18 , H04N19/182 , H04N19/107 , H04N19/11 , H04N19/119 , H04N19/139 , H04N19/44 , H04N19/52 , H04N19/55 , H04N19/593 , H04N19/615 , H04N19/91
CPC classification number: H04N19/122 , H04N19/107 , H04N19/11 , H04N19/119 , H04N19/12 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/14 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/44 , H04N19/50 , H04N19/52 , H04N19/55 , H04N19/593 , H04N19/60 , H04N19/615 , H04N19/625 , H04N19/91
Abstract: Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.
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493.发明授权公开(公告)号：US09960293B2
公开(公告)日：2018-05-01
申请号：US12306849
申请日：2007-01-22
Applicant: Hee-Tae Jung , Byung-Seon Kong
Inventor： Hee-Tae Jung , Byung-Seon Kong
IPC: H01L31/00 , H01L31/0224 , B82Y10/00 , B82Y30/00 , H01B1/02 , H01B1/04 , H01L31/18 , H05B33/28 , H01L51/44 , H01L51/52
CPC classification number: H01L31/022466 , B82Y10/00 , B82Y30/00 , H01B1/02 , H01B1/04 , H01L31/1884 , H01L51/444 , H01L51/5203 , H01L2224/13562 , H01L2924/12044 , H05B33/28 , Y02E10/50 , H01L2924/00
Abstract: The present invention relates to a method for preparing a transparent electrode using a carbon nanotube (CNT) film, and more particularly, to a method for preparing a transparent electrode, the method comprising the steps of forming a CNT film on a desired substrate using a dispersed solution of CNT and then reducing/forming metal nanoparticles on the surface of the CNT film. According to the present invention, a transparent electrode in which gold nanoparticles are formed on the surface of high density CNT film having high purity, can be prepared. The inventive transparent electrode has high visible ray penetration and an excellent electrical conductivity by hyperfine metal particles uniformly formed on the surface thereof as well as a uniform increase in electrical conductivity over the whole CNT film, and thus it can be applied to various displays as well as image sensors, solar cells, touch panels, digital papers, electromagnetic shielding agents, static charge preventing agents and the like.
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公开(公告)号：US09944855B2
公开(公告)日：2018-04-17
申请号：US14434188
申请日：2013-07-31
Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY , KOREA INSTITUTE OF CONSTRUCTION TECHNOLOGY
Inventor： Gye Chun Cho , Il Han Chang
Abstract: The present disclosure described herein pertain generally to a method for stabilizing and improving a soil by using a high-molecular viscous biopolymer, a soil composition for promoting germination or growth of vegetation, a composition for preventing soil erosion, and a soil construction material and member.
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公开(公告)号：US09944756B1
公开(公告)日：2018-04-17
申请号：US15377047
申请日：2016-12-13
Inventor： You Jung Song , Ju Hee Lee , Won Jung Kim , Bum Joon Kim , Young Kwon Kim , Hyun Jeong Kim
CPC classification number: C08G73/0672 , C08G61/124
Abstract: A carbazole-based graft copolymer capable of controlling a self-assembled structure and a method of synthesizing the same are provided. Specifically, the copolymer is capable of controlling a self-assembled structure which can control the morphology of a polymer structure and the size of pores by controlling the molecular weights of polylactic acid (PLA) functioning as a coil and of a carbazole copolymer to prepare a poly(carbazole)-coil graft copolymer of Formula 1 below and the method of synthesizing the same is provided. In Formula 1, X represents 0.05 to 0.1, m represents an integer of 7 to 8, and n represents an integer of 56 to 84.
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Patent Agency Ranking
公开(公告)号：US09936865B2
公开(公告)日：2018-04-10
申请号：US14513448
申请日：2014-10-14
Inventor： Min-seog Choi , Ki-Hun Jeong , Hyeon-Cheol Park , Seun-wan Lee
CPC classification number: A61B1/07 , A61B1/00172 , A61B5/0066 , A61B5/0095 , A61B5/6873 , G02B23/26 , G02B26/103
Abstract: Fiber scanning optical probes and medical imaging apparatuses including the same are provided. The fiber scanning optical probe includes an optical fiber; an actuator attached onto the optical fiber and configured to drive the optical fiber at a driving resonance frequency; a mass provided at a side of the optical fiber and configured to control the driving resonance frequency; and a frequency separator provided on a portion of the optical fiber between the actuator and the mass, the frequency separator being configured to separate the driving resonance frequency into separate resonance frequencies.
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497.发明申请公开(公告)号：US20180078966A1
公开(公告)日：2018-03-22
申请号：US15480863
申请日：2017-04-06
Inventor： Taek-Soo Kim , Sumin Kang
CPC classification number: B05C1/0808 , A61F2210/0076 , B05C1/022 , B05D1/20 , B05D1/283 , B05D1/286 , B05D1/60 , C23C14/0005 , C23C14/021 , C23C14/025 , C23C14/087 , C23C14/14 , C23C16/01 , C23C16/06 , C23C22/13
Abstract: A method for coating a thin film in a rolling manner and a thin film coating apparatus are provided. The method includes: floating a thin film material on a liquefied material; rolling a cylindrical substrate after contacting the cylindrical substrate with the thin film material; and coating the thin film material on a surface of the cylindrical substrate by using an attraction force between the surface of the cylindrical substrate and the thin film material.
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498.发明申请公开(公告)号：US20180062721A1
公开(公告)日：2018-03-01
申请号：US15526623
申请日：2016-02-22
Inventor： Dong Ho CHO , Byung Chang CHUNG , Dae Hee PARK , Joon Sang HAN , Yun Sik KIM
CPC classification number: H04B7/0617 , H04B7/024 , H04B7/0413 , H04B7/0695 , H04W72/082
Abstract: A coordinated transmission method based on beam division multiple access and an apparatus performing the same are disclosed. The coordinated transmission method in a beam division multiple access environment, which divides a service target region into a plurality of beam sectors through a plurality of antenna arrays having at least one of a pattern characteristic and a polarization characteristic, includes receiving a coordination request from a user terminal located in the service target region and performing any one among a macro diversity operation, a coordinated silence operation, and a coordinated beamforming operation for the user terminal based on an interference level included in the coordination request.
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公开(公告)号：US09905786B2
公开(公告)日：2018-02-27
申请号：US14857785
申请日：2015-09-17
Inventor： Younsun Kim , Yunho Lee , Jihyun Seo , Seulong Kim , Yeong-Eun Kim , Dongwoo Shin , Jungsub Lee , Naoyuki Ito , Changwoong Chu
IPC: H01L51/00 , C07F9/6568 , C09K11/02 , C07F9/28 , C07F9/64 , C09K11/06 , C07F9/6587 , H01L51/50
CPC classification number: H01L51/0091 , C07F9/6587 , C09K11/025 , C09K11/06 , C09K2211/1007 , C09K2211/1011 , C09K2211/1014 , C09K2211/1029 , C09K2211/1044 , C09K2211/188 , H01L51/5016
Abstract: An organometallic complex represented by Formula 1-1 or Formula 1-2 is provided: wherein in Formulae 1-1 and 1-2, descriptions of R1 to R7, X1, X2, Y1 to Y4, rings A, B, C, and a to e are understood by referring to the description provided herein. An organic light-emitting device includes a first electrode, a second electrode facing the first electrode, and an organic layer that is disposed between the first electrode and the second electrode and includes an emission layer, wherein the organic layer includes at least one organometallic complex represented by Formula 1-1 or Formula 1-2.
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公开(公告)号：US09905324B2
公开(公告)日：2018-02-27
申请号：US14139592
申请日：2013-12-23
Inventor： Hyun Woo Koo , Tae Woong Kim , Jung Yong Lee , Jae Min Lee
CPC classification number: H01B1/02 , B22F9/00 , B22F9/16 , B22F9/18 , B22F9/20 , B82Y40/00 , H01B1/20 , H01B1/22
Abstract: A method of fabricating a metal nanowire dispersion solution includes heating a first solution including a metal compound, a catalyst, an organic protection agent and menstruum, thereby forming metal nanowires in the first solution, performing a first cleaning process providing a first solvent into the metal nanowire, thereby separating the organic protection agent surrounding the metal nanowires from the metal nanowires, separating the metal nanowires from the first solution by vacuum-filtering, and dispersing the separated metal nanowires in a dispersion solvent.
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