baber/WOPTO huggingface dataset:
Patent WO-2021010541-A1 (WO)
Inventor: SEO SOON SEOK
IPC: B25D11/00
Filed: 2019-09-11
Abstract: A smart hammer for hitting glass of the present invention can easily break glass because a punch hits the glass with a strong pressing force due to a multistage impact. Replacement of a punch tip is simple and efficient. By inserting a screwdriver in place of the punch tip, the smart hammer can be used as a manual screwdriver or a ratchet screwdriver. By installing a fire or smoke detecting sensor on the smart hammer, a network system that controls an emergency when it occurs can be established. The smart hammer of the present invention is robust and fault-free, and can be stored permanently. [Representative drawing] figure 1
Patent WO-2020096357-A1 (WO)
Inventor: HA JAE SEUNG
IPC: H01L51/50
Filed: 2019-11-06
Abstract: 본 명세서는 애노드; 상기 애노드와 대향하여 구비된 캐소드; 상기 애노드와 상기 캐소드 사이에 구비된 발광층을 포함하는 유기물층을 포함하는 유기 발광 소자에 있어서, 상기 발광층; 상기 애노드와 상기 발광층 사이에 구비된 유기물층 중 1층 이상; 및 상기 캐소드와 상기 발광층 사이에 구비된 유기물층 중 1층 이상은 각각 sp3 탄소를 중심으로 이루어진 화합물을 1종 이상 포함하고, 상기 발광층은 1종 이상의 안트라센계 화합물을 포함하는 호스트를 포함하며, 상기 유기물층에 포함되는 유기물들 중 도판트 화합물을 제외한 유기물들의 밴드갭 에너지(E bg )는 각각 3 eV 이상인 것인 유기 발광 소자를 제공한다.
Patent WO-2020101396-A1 (WO)
Inventor: KIM JAEYOUNG
IPC: G02B1/04
Filed: 2019-11-14
Abstract: The present invention relates to an optical laminate which includes a polymer substrate and an anti-glare layer and in which rubber particles having a cross-section diameter of 10-500 nm are present within 50% of the thickness of the anti-glare layer from the interface between the polymer substrate and the anti-glare layer, a polarizing plate including the optical laminate, and a liquid crystal panel and a display device which include the polarizing plate.
Patent WO-2021071024-A1 (WO)
Title: Display device comprising module support part and method for manufacturing module support part
Inventor: CHOI JIN HWAN
IPC: H01L51/00
Filed: 2019-12-11
Abstract: A display device comprises: a display module; a module support part disposed under the display module; and a housing receiving the display module and the module support part, wherein the module support part comprises: a support layer disposed under the display module; and a plurality of support bars disposed within the support layer and having a greater modulus than the support layer.
Patent WO-2021125417-A1 (WO)
Title: 고분자 연료전지 분리판용 스테인리스강 및 그 제조 방법
Inventor: CHOI SANG KYU
IPC: C22C38/00
Filed: 2019-12-26
Abstract: 전기를 발생시키는 스택의 양극과 음극 등의 부품에 사용되는 스테인리스강의 표면을 습식 가공에 의한 표면 개질 기술을 적용하여 내식성 및 전기 전도성, 수분의 맺힘 현상을 발생시키지 않는 고분자 연료전지 분리판용 스테인리스강 및 그 제조 방법에 대하여 개시한다.
Patent WO-2020141847-A1 (WO)
Inventor: KIM CHONG JAI
IPC: G16H70/60
Filed: 2019-12-31
Abstract: 본 발명의 일 실시예에 따른 피브린과침착증 진단 장치는 인공 지능 알고리즘을 이용하여 태반 이미지에서 자동으로 피브린과 융모를 구분하고, 구분된 피브린과 융모의 배치, 점유 비율 등에 따라 피브린과침착증의 진단을 수행할 수 있다.
Patent WO-2020153754-A1 (WO)
Inventor: CHOI JEONG MIN
IPC: H01L51/52
Filed: 2020-01-22
Abstract: La présente invention concerne : un film de protection de surface comprenant une couche de base et une couche adhésive disposée sur la surface de la couche de base, la couche adhésive comprenant un produit durci d'une composition adhésive contenant un polymère d'uréthane, un polymère acrylique et un agent de durcissement ; et un procédé de fabrication d'un dispositif électronique électroluminescent organique le comprenant, la couche adhésive étant faible en termes d'adhésivité à la surface d'un matériau adhérent et en tant que telle, peut en être retirée par une faible force de libération et causer peu de dommages et de contamination à la surface du matériau adhérent après en avoir été détachée.
Patent WO-2021002560-A1 (WO)
Inventor: PARK PYEONG YEOL
IPC: C21D9/573
Filed: 2020-03-06
Abstract: The present invention relates to a steel wire having an excellent straightness quality and a method for manufacturing same. The steel wire having an excellent straightness quality comprises a wire which goes through, after going through a wire drawing step, a heating step in which the wire is heated in a state where tension is applied thereto, and then goes through a cooling step, wherein when the wire is wound around a winding part having a diameter larger than the diameter of the wire during a predetermined period and then the linearity of the wire configured to have length of 400 mm is measured, the linearity of the wire is 30 mm or less. A method for manufacturing a steel wire having an excellent straightness quality comprises a wire preparing step, a heating step, a cooling step, and a linearity measuring step.
Patent WO-2020209643-A1 (WO)
Inventor: LEE SEUNGMIN
IPC: H04W52/36
Filed: 2020-04-09
Abstract: A method by which a first device performs wireless communication, and a device for supporting same are provided. The method can comprise the steps of: acquiring synchronization related to sidelink (SL) communication from a synchronization reference; receiving information related to a first power control parameter; generating a sidelink synchronization signal block (S-SSB) including a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS), and a physical sidelink broadcast channel (PSBCH); determining a first transmission power value on the basis of a downlink (DL) path loss between a base station and the first device and the information related to the first power control parameter; and transmitting the S-SSB to a second device on the basis of the first transmission power value and the synchronization related to the SL communication.
Patent WO-2020222524-A1 (WO)
Title: 피칭연습용 보조 장치
Inventor: JUNG KO HYUNG
IPC: A63B21/00
Filed: 2020-04-29
Abstract: 본 발명은 피칭연습용 보조 장치에 관한 것으로, 더욱 상세하게는 연장체의 탄성변형 및 복원에 의한 부하를 제공하여 야구공을 던질 때와 같은 무게감을 제공함으로써 섀도 피칭훈련 효과와 근력운동 효과 및 손가락 감각운동 효과를 도모할 수 있는 피칭연습용 보조 장치에 관한 것이다.
Patent WO-2020231092-A1 (WO)
Inventor: KIM JINWOOK
IPC: H02J50/10
Filed: 2020-05-08
Abstract: An electronic device is provided. The electronic device includes a main body; an intake hole formed at a first face facing a first direction in the main body; a fan disposed inside the main body and pulling air through the intake hole; a charging device disposed between the fan and a second face facing a second direction opposite to the first direction in the main body, and the charging device including a coil that supplies power to an external electronic device; a plurality of holders disposed to a side face in the main body, the plurality of holders holding the external electronic device mounted on the second face; and a holder flow path that provides the air, which is circulated by the fan to each of the plurality of holders, toward the external electronic device.
Patent WO-2020226468-A1 (WO)
Title: Souche de pediococcus inopinatus ｗikim0108 ayant un effet de régulation de la fonction immunitaire et de soulagement d'une maladie intestinale inflammatoire et son utilisation
Inventor: CHAE SUNG UK
IPC: C12N1/20
Filed: 2020-05-11
Abstract: La présente invention concerne une souche de bactéries lactiques, Pediococcus inopinatus, ayant un effet de régulation de la fonction immunitaire et de soulagement d'une maladie intestinale inflammatoire et son utilisation. La souche, Pediococcus inopinatus, n'a pas de cytotoxicité, a un effet d'amélioration de l'immunité, a pour effet de favoriser la production de NO et de ROS, augmente l'expression de cytokines inflammatoires et le nombre d'immunocytes et a pour effet d'atténuer une maladie intestinale dans un modèle animal de maladie intestinale inflammatoire. Par conséquent, la Pediococcus inopinatus peut être utilisée de manière très efficace dans des aliments diététiques fonctionnels, des médicaments, des compositions alimentaires et des compositions vétérinaires pour réguler la fonction immunitaire et prévenir, soulager ou traiter une maladie intestinale inflammatoire.
Patent WO-2020256344-A1 (WO)
Title: 영상 코딩에서 변환 커널 세트를 나타내는 정보의 시그널링
Inventor: NAM JUNGHAK
IPC: H04N19/132
Filed: 2020-06-11
Abstract: 본 문서에 따른 영상 디코딩 방법은 레지듀얼 정보를 기반으로 현재 블록의 레지듀얼 샘플들을 생성하는 단계를 포함하고, 상기 레지듀얼 정보를 MTS(Multiple Transform Selection) 인덱스 및 변환 계수들에 관한 정보를 포함하고, 상기 레지듀얼 샘플들은 변환 커널 세트를 이용하여 상기 변환 계수들에 관한 정보에 따른 변환 계수들로부터 생성되고, 상기 변환 커널 세트는 변환 커널 세트 후보들 중 상기 MTS 인덱스에 의해 결정되고, 상기 MTS 인덱스의 빈 스트링의 빈들 중 적어도 하나의 빈은 컨텍스트 코딩을 기반으로 도출되고, 상기 컨텍스트 코딩은 상기 MTS 인덱스에 관한 컨텍스트 인덱스 증감의 값을 기반으로 수행되고, 상기 MTS 인덱스의 상기 빈 스트링은 최대 4개의 빈들을 포함하고, 상기 4개의 빈들 중 컨텍스트 코딩에 의해 도출되는 빈에 할당되는 컨텍스트 인덱스 증감의 값의 개수는 한 개인 것을 특징으로 한다.
Patent WO-2021075711-A1 (WO)
Inventor: SEO INKWON
IPC: H04W76/15
Filed: 2020-09-01
Abstract: The present specification proposes a discontinuous reception operation method characterized by: in a wireless communication system, a terminal in which a plurality of cells are configured performing a physical downlink control channel (PDCCH) monitoring on-duration; receiving bandwidth part (BWP) setting information, wherein the BWP setting information informs a specific BWP; receiving a PDCCH on the basis of the PDCCH monitoring, wherein the PDCCH includes dormant indication information for a specific cell from among the plurality of cells of the terminal; and activating the specific BWP on the basis of the dormant indication information indicating non-dormancy.
Patent WO-2022019412-A1 (WO)
Title: Method for providing blockchain-based open peer review service and system therefor
Inventor: CHOI DONG HOON
IPC: G06Q10/06
Filed: 2020-12-28
Abstract: The present invention relates to a method for providing a blockchain-based open peer review service and to a system therefor. Specifically, the method comprises: generating a first smart contract mutually made between an editor account and a platform account with respect to an access condition of review data generated during a review process, and recording the first smart contract in a blockchain system; recording, in the blockchain system, the review data generated during the review process; and when receiving an access request for the review data, providing the review data corresponding to the access condition through the first smart contract. Thereby, access control and publication of the review data can be managed according to the access condition based on the first smart contract, a contract between an editor and a reviewer by a second smart contract can be managed, the review process can transparently and reliably proceed by means of such contracts, and as the review process is published by the first smart contract, the quality of review materials can be improved and review delays can be prevented.
Patent WO-2022035001-A1 (WO)
Inventor: SIN HYOUN WOO
IPC: H04R1/02
Filed: 2021-01-11
Abstract: The present invention relates to an LED smart case for protecting a smartphone while expressing various colors in various brightness by responding to sound, and, more specifically, provides a smart case which protects the smartphone by coupling to same and surrounding the exterior of same, and which has a sensor therein for detecting sound so as to be able to respond to the sound, and which comprises, in a circuit unit, a control unit for controlling so as to vary the brightness or express a preset color according to the frequency or volume of the sound, and in which light is emitted by an LED due to the control unit, expanded via an expansion unit, and passed through a pattern layer comprising a pattern so that the pattern part shines. The responsive LED case according to an embodiment of the present invention expresses the color and brightness of the emitted light of the LED by responding to sound, and, thus, enables the case to emit light in a way that is not monotonous, and has the effect of being usable as a cheering tool with a uniform color and brightness, if multiple users each use a responsive LED case according to the embodiment, while watching an event.
Patent WO-2022004984-A1 (WO)
Title: Wearing module and motion assistance device comprising same
Inventor: LEE MINHYUNG
IPC: A61H3/00
Filed: 2021-02-02
Abstract: A wearing module according to one embodiment may comprise: a cover comprising a cover body and a cover hole penetratingly formed in the cover body; a support part comprising a support body made from a material that is more flexible than that of the cover, a support head that is connected to the support body and that can be attached/detached to/from the cover body, and an attachment part, which is connected to the support body, is positioned on the opposite side of the support head with respect to the support body, and passes through the cover hole to be attached to the outer surface of the support body; and an elastic layer of which a portion is fixed to the support part and which can move relative to the cover.
Patent WO-2021210845-A1 (WO)
Title: Dry ice spray-type cleaning device
Inventor: LEE CHANG JIN
IPC: B08B7/00
Filed: 2021-04-08
Abstract: The present invention relates to a dry ice spray-type cleaning device, and may provide a dry ice spray-type cleaning device that is capable of solving problems of prior art that uses an additive in a carrier gas, such as increases in additive supply costs, and harmfulness to the human body, recontamination, and recovery costs due to occurrence of problems in the management and post-treatment of sprayed additives, while at the same time being capable of obtaining higher collision energy by generating dry ice with high-density carbon dioxide by a booster pump, and wherein the dry ice spray-type cleaning device has a nozzle part in which, since dry ice can be linearly sprayed and thereby prevent occurrence of a dead space or overlap phenomenon, dry ice loss does not occur.
Patent WO-2022215785-A1 (WO)
Inventor: JEONG SEUNG HO
IPC: G06Q30/02
Filed: 2021-04-13
Abstract: Un procédé de fourniture d'informations d'un dispositif électronique, selon divers modes de réalisation, peut comprendre les étapes consistant à : acquérir des informations de produit et des informations d'utilisateur ; vérifier un ou plusieurs événements de promotion relatifs au produit ; vérifier si chaque événement parmi le ou les événements de promotion est valide, sur la base des informations d'utilisateur et d'informations de prix liées au produit ; et fournir, sur la base de leur validité, des informations de prix de remise liées au produit auquel sont appliquées des informations d'avantage de remise incluses dans chaque événement parmi le ou les événements de promotion. Divers autres modes de réalisation sont possibles.
Patent WO-2022005242-A1 (WO)
Inventor: KIM SEONG DO
IPC: H01M4/02
Filed: 2021-07-02
Abstract: 본 발명은 이차전지 전극용 슬러리 조성물 및 이를 이용하여 제조되는 이차전지 전극에 관한 것으로, 상기 슬러리 조성물은 선형 탄소재 및 점형 탄소재를 포함하는 도전재, 분산제 및 유기 용매를 포함하되, 특정 범위에서 2개의 피크를 가지도록 상기 도전재의 평균 크기와 함량을 조절함으로써 상기 탄소계 도전재의 용해성과 분산성이 향상되고, 전기적 물성이 현저히 개선되는 이점이 있다.
Patent WO-2022019709-A1 (WO)
Title: Method and apparatus for bearer type change in wireless communication system
Inventor: XU JIAN
IPC: H04W36/02
Filed: 2021-07-23
Abstract: The present disclosure relates to bearer type change in wireless communications. According to various embodiments of the present disclosure, a method performed by a source radio access network (RAN) node in a mobility procedure to a target RAN node in a wireless communication system comprises: providing a multicast-broadcast service (MBS) service via a first bearer; transmitting, to the target RAN node, a handover request message comprising information for the first bearer; receiving, from the target RAN node, a handover response message comprising i) information informing a change of the first bearer to a second bearer, and ii) configuration information for a communication on the second bearer; and transmitting, to a wireless device, the configuration information for the communication on the second bearer.
Patent WO-2022045627-A1 (WO)
Inventor: SON MUN YEONG
IPC: H01L51/52
Filed: 2021-08-06
Abstract: Un élément de commande de trajet optique selon un mode de réalisation comprend : un premier substrat ; une première électrode agencée sur le premier substrat ; un second substrat agencé sur le premier substrat ; une seconde électrode agencée au-dessous du second substrat ; et une unité de conversion de lumière agencée entre la première électrode et la seconde électrode : l'unité de conversion de lumière comprenant une partie de paroi de séparation, une partie de réception et une partie de base ; un matériau de conversion de lumière comprenant un liquide de dispersion, des particules de conversion de lumière, et un agent à dispersion étant agencé dans la partie de réception ; et l'agent à dispersion comprenant un agent à dispersion non ionique.
Patent WO-2023022283-A1 (WO)
Title: Table de cuisson de type à chauffage par induction
Inventor: JUNG KYUNGHOON
IPC: H05B6/12
Filed: 2021-09-06
Abstract: L'objectif de la présente invention est de fournir une table de cuisson de type à chauffage par induction qui minimise la formation d'une tension négative et l'apparition d'une oscillation dans un onduleur utilisant un élément à large bande interdite (WBG). La table de cuisson de type à chauffage par induction comprend : une vitre de plaque supérieure sur laquelle est placé un récipient de cuisson ; une bobine de travail qui génère un champ magnétique pour chauffer le récipient de cuisson ; et un onduleur qui comprend au moins un élément de commutation actionné pour permettre à un courant de circuler à travers la bobine de travail et une unité d'attaque configurée pour attaquer l'élément de commutation, l'unité d'attaque présentant une impédance combinée variable.
Patent WO-2022060121-A1 (WO)
Inventor: SONG YOUNG HO
IPC: A61K31/573
Filed: 2021-09-16
Abstract: 본 발명은 수가용화된 담즙산을 포함하는 패혈증, 급성 폐손상 질환, 또는 급성 호흡곤란증후군의 예방 또는 치료용 약학 조성물에 관한 것이다. 더욱 상세하게, 본 발명은 수가용화된 우르소데옥시콜산 (ursodeoxycholic acid, UDCA) 계열 담즙산, 또는 이의 약학적으로 허용가능한 염과 항염증 또는 항알러지 제제를 병용 투여하는, 패혈증, 급성 폐손상 질환, 또는 급성 호흡곤란증후군의 예방 또는 치료용 약학 조성물에 관한 것이다.
Patent WO-2022092880-A1 (WO)
Inventor: SONG MYEONG HUN
IPC: H01L33/06
Filed: 2021-10-29
Abstract: 표시 장치가 제공된다. 표시 장치는 복수의 전극들을 포함하는 제1 전극 그룹, 상기 제1 전극 그룹과 상기 제1 방향으로 이격되고 상기 복수의 전극들을 포함하는 제2 전극 그룹, 상기 제2 방향으로 이격된 상기 전극들 상에 배치되어 상기 제2 방향으로 연장된 형상을 갖는 발광 소자들 및 연결 전극들을 포함한다. 상기 연결 전극들은 제1 연결 전극, 제2 연결 전극, 제3 연결 전극, 제4 연결 전극, 및 제5 연결 전극을 포함하고, 상기 제1 연결 전극은 상기 제4 연결 전극의 상기 제2 전극 그룹 상에 배치된 부분과 상기 제1 방향으로 이격되고, 상기 제2 연결 전극은 상기 제4 연결 전극의 상기 제1 전극 그룹 상에 배치된 부분과 상기 제1 방향으로 이격된다.
Patent WO-2023063467-A1 (WO)
Inventor: CHUN YOUN SIC
IPC: C09D5/00
Filed: 2021-11-01
Abstract: The present invention provides an orthodontic device and a method for using the orthodontic device, the device comprising: a wire; a coating agent which is coating-treated on the external surface of the wire; and a fixing portion arranged on the coating agent and cured, wherein the coating agent is removed after the curing of the fixing portion, causing a gap between the wire and the fixing portion.
Patent WO-2023080289-A1 (WO)
Inventor: JEONG YOUNG JAE
IPC: A61H1/00
Filed: 2021-11-05
Abstract: Est divulgué un appareil de digitopuncture muni d'un objet à double mouvement. L'appareil de digitopuncture muni d'un objet à double mouvement selon un mode de réalisation de la présente invention peut comprendre : une plaque d'élément de digitopuncture dans laquelle une pluralité de tiges de digitopuncture est installée pour être mobile verticalement ; et une paire de modules de déplacement vers le haut/bas de type mobile qui se déplace en va-et-vient sur la partie inférieure de la plaque d'élément de digitopuncture et pousse une partie de la pluralité de tiges de digitopuncture.
Patent WO-2023286925-A1 (WO)
Inventor: PANWAR SUMIT
IPC: G06T15/00
Filed: 2021-11-09
Abstract: A differential video rendering system, including a graphics processing unit (GPU); a graphical display coupled to the GPU; a video decoder configured to decode a bitstream of encoded data into a plurality of sets of decoded blocks; at least one processor configured to: generate, based on a first set of the plurality of sets of decoded blocks, a first differential video frame comprising a plurality of sets of differential regions, normalize each set of the plurality of sets of differential regions to a fixed size block to provide a normalized plurality of sets of differential regions, map a respective set of the normalized plurality of sets of differential regions to align with a respective tile size region of a plurality of tile size regions conforming with the GPU, generate a hierarchal region tree based on the normalized plurality of sets of differential regions mapped to the plurality of tile size regions, and generate a plurality of optimal regions based on the hierarchal region tree satisfying a predefined criteria corresponding to a pre-defined optimal number of regions and a predefined efficiency parameter; and a graphics rendering engine configured to render the first differential video frame on the graphical display based on the plurality of optimal regions and a group of differential regions.
Patent WO-2022108365-A1 (WO)
Inventor: KANG HWAYONG
IPC: H04N9/07
Filed: 2021-11-18
Abstract: 전자 장치는, 카메라 모듈 및 적어도 하나의 프로세서를 포함하고, 상기 카메라 모듈은, 마이크로 렌즈 어레이, 컬러 필터 어레이, 수광 소자 어레이를 포함하고, 상기 마이크로 렌즈 어레이의 제1 행에는 제1 마이크로 렌즈 및 상기 제1 마이크로 렌즈에 인접한 제2 마이크로 렌즈가 포함되고, 상기 컬러 필터 어레이의 제1 행에는, 상기 제1 마이크로 렌즈 아래에 배치되는 제1 컬러 필터 및 제2 컬러 필터, 및 상기 제2 마이크로 렌즈 아래에 배치되는 제3 컬러 필터 및 제4 컬러 필터가 포함되고, 상기 수광 소자 어레이의 제1 행에는, 상기 제1 컬러 필터 아래에 배치되는 제1 수광 소자, 상기 제2 컬러 필터 아래에 배치되는 제2 수광 소자, 상기 제3 컬러 필터 아래에 배치되는 제3 수광 소자, 상기 제4 컬러 필터 아래에 배치되는 제4 수광 소자를 포함할 수 있다.
Patent WO-2022108381-A1 (WO)
Title: Composition pour la prévention ou le traitement d'une maladie neuro-inflammatoire comprenant de la didanosine
Inventor: YU SEONG-WOON
IPC: A23L33/10
Filed: 2021-11-19
Abstract: La présente invention concerne une composition pour prévenir ou traiter une maladie neuro-inflammatoire, qui peut inhiber l'expression de cytokines neuro-inflammatoires, favoriser la dégradation de la bêta-amyloïde, et améliorer une fonction cognitive dans un modèle animal de la maladie d'Alzheimer. Plus particulièrement, la présente invention concerne une composition pour la prévention ou le traitement d'une maladie neuro-inflammatoire comprenant de la didanosine ou un sel pharmaceutiquement acceptable de celle-ci, et la composition peut être utilisée pour le développement de médicaments et de matières quasi-médicamenteuses.
Patent WO-2022114893-A1 (WO)
Title: 냉동죽 키트 및 이를 이용한 죽의 제조방법
Inventor: KIM HEE JEUNG
IPC: A23L23/10
Filed: 2021-11-29
Abstract: 본 출원은 쌀죽 블록 및 소스 블록을 포함하는 냉동죽 키트와 이를 이용한 죽의 제조방법에 관한 것이다. 본 출원에서는, 키트를 해동하는 간단한 과정을 수행하는 것만으로도 우수한 품질의 죽을 손쉽게 제조할 수 있고 소비자가 키트 내 블록의 종류와 비율을 조절함으로써 요리에 익숙하지 않은 사람도 어렵지 않게 기호에 맞는 죽을 제조할 수 있다는 장점이 있는 냉동죽 키트를 제공한다.
Patent WO-2022119338-A1 (WO)
Title: 리튬 이차전지용 양극활물질, 이의 제조방법 및 이를 포함하는 리튬 이차전지
Inventor: CHOI MOON HO
IPC: H01M10/052
Filed: 2021-12-02
Abstract: 본 발명의 실시예를 따르는 이차전지용 양극활물질은 하기 화학식 1로 표시되는 층상 구조의 리튬 과잉 산화물을 포함하는 리튬 복합 산화물을 포함하고, 상기 리튬 복합 산화물은 2차 입자를 포함하고, 상기 2차 입자는 하나 이상의 1차 입자를 포함하고, 상기 1차 입자는 하나 이상의 결정자를 포함하고, 상기 2차 입자, 1차 입자 및 결정자 중에서 선택되는 어느 하나 이상은 각각 코어 및 상기 코어의 표면 중 적어도 일부를 점유하는 쉘을 포함하고, 공간군 C2/m에 귀속되는 결정구조를 [C2/m], 공간군 R-3m에 귀속되는 결정구조를 [R-3m], 및 공간군 C2/m에 귀속되는 결정구조 대 공간군 R-3m에 귀속되는 결정구조의 비율을 [C2/m] / [R-3m] 라고 할 때, 상기 2차 입자의 코어 및 쉘의 [C2/m] / [R-3m]는 상이하다: [화학식 1] rLi 2 M1O 3 ·(1-r)Li a M2O 2