baber/WOPTO huggingface dataset:
Patent WO-2021215738-A1 (WO)
Inventor: LEE HEE JAE
IPC: B63B73/46
Filed: 2021-04-14
Abstract: The present invention relates to an inflatable kayak in which side tubes have slanted outer surfaces to enable the slanted solid structure of a general kayak to be appropriately implemented, and by the removal of empty spaces at connection sites between a bottom tube and the side tubes, all problems and defects caused by the inflow of water into the empty spaces are smoothly resolved. This kayak comprises: a bottom tube (10) in the form of an air tube; a pair of side tubes (20) provided at both sides of the upper surface of the bottom tube (10); a pair of lower tapes attached to both open sides of the bottom tube (10); a pair of upper tapes (40) attached to lower tapes (30) and the open outer sides of the side tubes (20); a pair of first V tapes (50) attached between the lower tapes (30) and the lower surfaces of the side tubes (20); a pair of second V tapes (60) attached between the lower surfaces of the side tubes (20) and the upper surface of the bottom tube (10); and a pair of sealing tapes (70) attached to the open inner sides of the side tubes (20).
Patent WO-2022045523-A1 (WO)
Inventor: SEEN DONG JUNE
IPC: A24F40/40
Filed: 2021-05-13
Abstract: The present invention comprises: a main body part having a predetermined length, having a pair of first moving slits formed at the outer side thereof, and having a heating rod provided therein; a holder part, which is connected to the end portion of the main body part, has a first holder and a second holder that each have a second moving slit formed at the outer side thereof and connected to each of the pair of first moving slits in a straight line, and is connected so that one holder of the first and second holders rotates from the other holder at the point at which the holder part is connected to the main body part; and a slide part, which slides between the first moving slit and the second moving slit to encompass a portion of the circumference of the main body part or a portion of the circumferences of the first and second holders, wherein the slide part can move the heating rod into the holder part when the slide part moves to the second moving slit.
Patent WO-2022080620-A1 (WO)
Inventor: KIM JONG HAE
IPC: H02S10/12
Filed: 2021-06-04
Abstract: 본 발명은 바닷가 갯벌이나 황무지나 농지를 이용하여 그 토지의 용도를 해하지 않으면서 솔라셀 발전소를 구축하는 방법과 시스템장치에 관한 것으로, 더욱 상세하게는 버려진 갯벌이나 황무지나 농지를 변형하지 않고 갯벌해수면이나, 농지지표면에서 바람직하게는 3 m 이상, 황무지는 1미터 이상의 높이로 다수개의 콘크리트 파일을 격자형으로 구획하여 박아 고정하고, 그 위에 횡방향 거치대와 다수개의 종방향 레일을 접합한 격자형 트러스를 구성하여 하중을 분산시켜 전체 구조물이 무너지거나 기울어지지 아니하며 태풍에 안전한 구조체(STRUCTURE)를 제공하며, 구조체의 레일간의 사이에 레일과 솔라셀 패널 상하좌우 4축간을 길이 가변형 연결수단으로 연결하여 각 연결수단의 길이 가변으로 패널의 기울기를 360도 방향으로 가변 하여 태양광 집광 효율을 향상시키며, 레일간의 사이에 구성된 궤도차에 의하여 패널의 운송, 설치, 교체, A/S가 용이하여 솔라셀 발전소의 수명을 반영구적으로 향상시키며, 솔라셀 발전소의 접근로와 전송로와 ESS를 공유하는 풍력발전수단을 부가 구성하여 원전이나 화력발전을 대체하는 친환경 하이브리드 발전소 구축방법과 시스템장치를 제공한다.
Patent WO-2022030754-A1 (WO)
Title: Hydrogel coating composition for chemical sensor and chemical sensor fabricated using same
Inventor: LEE HYUNJUNG
IPC: G01N31/22
Filed: 2021-06-21
Abstract: The present invention relates to a hydrogel coating composition for a chemical sensor and a chemical sensor fabricated using same. Provided according to the present invention is a hydrogel coating composition for a chemical sensor which can be used for identifying freshness of foods by detecting volatile basic nitrogen generating upon food putrefaction, such as ammonia, hydrogen sulfide, etc., or toxic chemicals of foods, and a chemical sensor fabricated therefrom. The chemical sensor of the present invention is designed to fix a pH indicator dye through an ionic bond to prevent the detachment of the indicator dye and as such, exhibits excellent color reproducibility and has stability as a sensor. In addition, a pH change sensing sensor optimized for objects to be detected and for uses thereof can be fabricated through a suitable combination of physical properties of a polymer material of hydrogel and a pH indicator dye and can selectively sense only desired substances. Specifically, because the hydrogel coating composition of the present invention can be coated in desired patterns on a substrate, the composition can be provided as prints such as a QR codes, barcodes, illustrations or letters for describing products, advertising diagrams or letters, and the like, on wrapping paper for foods, etc., and as such, has excellent product applicability.
Patent WO-2022080626-A1 (WO)
Title: Dispositif pour prendre en charge le décollage et l'atterrissage d'un véhicule aérien
Inventor: LEE JAE SUK
IPC: H04W4/46
Filed: 2021-07-01
Abstract: L'invention concerne un dispositif pour prendre en charge le décollage et l'atterrissage d'un véhicule aérien. Le dispositif comprend : une plaque qui est disposée sur une surface de décollage et d'atterrissage cible et conçue pour pouvoir gérer un véhicule aérien ; un corps mobile qui est conçu pour déplacer la plaque dans la direction de déplacement du véhicule aérien ; et un dispositif de commande qui commande la vitesse de déplacement de la plaque. Par conséquent, la présente invention permet à un véhicule aérien de décoller ou d'atterrir sur une surface cible sans avoir un train d'atterrissage, et peut ainsi réduire la consommation de carburant du véhicule aérien et augmenter l'espace dans lequel des armes ou des marchandises sont chargées.
Patent WO-2022025476-A1 (WO)
Inventor: YI JUNG HWAN
IPC: G09G3/32
Filed: 2021-07-08
Abstract: La présente invention concerne un dispositif d'affichage. Le dispositif d'affichage comprend : un substrat comprenant une pluralité de pixels ; une première électrode et une seconde électrode disposées sur le substrat et espacées l'une de l'autre ; une couche réfléchissante isolante disposée sur la première électrode et la seconde électrode ; et une pluralité d'éléments électroluminescents disposés entre la première électrode et la seconde électrode et connectés électriquement à la première électrode et à la seconde électrode, la couche réfléchissante isolante comprenant une pluralité de premières et secondes couches ayant des indices de réfraction différents, et les premières et secondes couches étant empilées en alternance.
Patent WO-2022071651-A1 (WO)
Inventor: PARK JI HYE
IPC: G01R31/389
Filed: 2021-07-27
Abstract: The present invention relates to an apparatus, system, and method for predicting the performance of a secondary cell. The apparatus of the present invention comprises: a current sensor for measuring a discharge current output from the secondary cell during a discharge period in which the secondary cell is discharged from a predetermined reference voltage to a constant voltage; and a control unit for calculating the relationship between the change in resistance and the change in state of charge (SOC) during the discharge period on the basis of the reference voltage and the change in the discharge current over time. The control unit calculates the resistance values of each of a first resistance, a second resistance, and a third resistance on the basis of the relationship between the change in resistance and the change in SOC during the discharge period, wherein the first resistance is the resistance due to the voltage drop of the secondary cell, the second resistance is the resistance generated as ions are inserted into an active material of the secondary cell during the discharge period, and the third resistance is the polarization resistance generated by the movement of the ions in the secondary cell.
Patent WO-2022059910-A1 (WO)
Title: Air conditioning apparatus and method of controlling indoor pressure using same
Inventor: CHO MINGI
IPC: F24C15/20
Filed: 2021-08-04
Abstract: A method of controlling an indoor pressure is disclosed. The method comprises: a first detection step of detecting an indoor carbon dioxide level; a second detection step of detecting an outdoor fine dust level; a step of, on the basis of the levels detected in the first detection step and the second detection step, driving an air supply fan and an exhaust fan such that an air supply amount of the air supply fan is greater than an exhaust amount of the exhaust fan; and a first indoor pressure control step of detecting an indoor pressure and controlling the air supply fan and the exhaust fan on the basis of the indoor pressure. In the first indoor pressure control step, when the indoor pressure is less than a first set value, the number of revolutions per minute of the exhaust fan is controlled to be lowered, and when the indoor pressure is greater than or equal to a second set value greater than the first set value, the number of revolutions per minute of the exhaust fan is controlled to increase.
Patent WO-2022060134-A1 (WO)
Title: Button type secondary battery
Inventor: LIM JAE WON
IPC: H01M50/155
Filed: 2021-09-16
Abstract: The present invention relates to a button type secondary battery comprising: an electrode assembly including a first electrode tab and a second electrode tab; a lower can comprising a receiving portion in which the electrode assembly is received and to which the first electrode tab is connected, and a flange portion which is provided at the outer circumferential surface of the receiving portion; an upper cap comprising a cover portion which is installed on the receiving portion to cover the receiving portion, and a cured portion which is provided at the outer circumferential surface of the cover portion; a terminal member which is coupled to the upper cap and connected to the second electrode tab; and an insulating member which insulates and seals between the terminal member and the upper cap, wherein the flange portion and the curled portion are coupled to each other by a seaming method to seal between the lower can and the upper cap.
Patent WO-2022065925-A1 (WO)
Title: Method and apparatus for assisting diagnosis of cardioembolic stroke by using chest radiographic images
Inventor: JEONG HAN-GIL
IPC: G06T7/00
Filed: 2021-09-24
Abstract: Embodiments relate to a method for assisting the diagnosis of cardioembolic stroke, in which the method is performed by a processor and is to assist the diagnosis of cardioembolic stroke by using chest radiographic images, the method comprising the steps of: acquiring chest radiographic images to be classified of a subject; and acquiring cardioembolic stroke diagnosis auxiliary information from the chest radiographic images to be classified of the subject, by using a neural network model, wherein the neural network model is configured to extract features from the chest radiographic images to be classified of the subject, and determine, based on the extracted features, whether the subject belongs to a group indicative of having cardioembolic stroke.
Patent WO-2022203142-A1 (WO)
Title: Method for operating waste disposal apparatus for excrement disposal
Inventor: LEE HOON SANG
IPC: A61G9/02
Filed: 2021-10-14
Abstract: A method for operating a waste disposal apparatus for excrement disposal, according to the present invention, the waste disposal apparatus comprising a body wearable unit having a disposal space for receiving and discharging waste discharged from a human body, and a human body-mounted disposal unit provided in the disposal space and including a sensor unit which recognizes waste, comprises the steps of: (a) carrying out, by the human body-mounted disposal unit, an waste disposal operation for discharging excrement located in the disposal space; (b) after step (a), sensing, by the sensor unit, whether excrement is present in the disposal space; (c) when it is determined in step (b) that excrement is present in the disposal space, carrying out steps (a) and (b) again; and (d) when step (c) is repeated a preset first reference number of times, switching the human body-mounted disposal unit to an excrement decomposition mode so as to decompose the excrement located in the disposal space, and simultaneously carrying out the waste disposal operation.
Patent WO-2023068406-A1 (WO)
Inventor: CHOI WON JUN
IPC: G16B35/00
Filed: 2021-10-22
Abstract: 본 발명은 골다공증 발병 예측을 위한 정보제공방법 및 골다공증 발병 예측용 조성물에 관한 것으로, 비타민 D 결합 단백질의 발현 수준을 측정하여 골다공증의 발병 가능성을 정확하고 간단하게 예측할 수 있어 골다공증의 발병을 예방할 수 있다.
Patent WO-2023085456-A1 (WO)
Title: 태반 가수분해물 및 이의 제조방법
Inventor: KIM TAE JEONG
IPC: A61K35/50
Filed: 2021-11-10
Abstract: 본 발명은 동물 태반 파쇄물을 탈지하고 건조시켜, 동물 태반 파쇄물 분말을 얻는 단계; 상기 동물 태반 파쇄물 탈지 분말에 단백질 분해효소 산 용액을 처리하여 효소 분해하는 단계; 및 상기 분해물을 음이온 교환 수지와 접촉시켜 이온 교환하는 단계;를 포함함으로써, 약리 활성을 나타낼 수 있는 아미노산, 올리고펩티드를 다량으로 포함하는 태반 가수분해물을 제조할 수 있는 방법에 관한 것이다.
Patent WO-2023095953-A1 (WO)
Inventor: BAE WOONG-SHIK
IPC: H04L65/40
Filed: 2021-11-25
Abstract: A distributed ID-based verification credential management method for achieving the above objective, according to one embodiment of the present invention, comprises the steps of: registering IoT device connection information including first verification credentials corresponding to an IoT device; issuing second verification credentials corresponding to a user; and registering the issued second verification credentials with the IoT device.
Patent WO-2023101045-A1 (WO)
Title: 임무장비 마운트 장치
Inventor: JUNG WOO YOUNG
IPC: B64D47/00
Filed: 2021-12-01
Abstract: 본 발명은 임무장비 마운트 장치에 관한 것이다. 상기 임무장비 마운트 장치는 드론 본체의 제1 면에 연결되는 제1 댐핑 어셈블리, 드론 본체의, 제1 면과 연결되는 제2 면에 연결되는 제2 댐핑 어셈블리, 제1 댐핑 어셈블리 및 제2 댐핑 어셈블리와 연결되고, 임무장비가 안착되는 마운트 플레이트 및 마운트 플레이트와 연결되고, 마운트 플레이트가 수평을 유지하도록 조절하는 짐벌 모터를 포함한다.
Patent WO-2022255576-A1 (WO)
Inventor: PARK SA EUN
IPC: C07C29/80
Filed: 2021-12-05
Abstract: La présente invention concerne un procédé de préparation d'alcool isopropylique, un monomère de propylène étant mis à réagir avec de l'eau dans un réacteur pour produire un produit de réaction contenant de l'alcool isopropylique, et à partir du flux de produit de réaction, le monomère de propylène n'ayant pas réagi et l'alcool isopropylique peuvent être séparés avec une pureté élevée en utilisant une tour d'absorption, une première colonne de purification de gaz, une seconde colonne de purification de gaz et une colonne d'élimination de gaz inerte.
Patent WO-2022149957-A1 (WO)
Title: Apparatus and method for transmitting control channel in wireless communication system
Inventor: CHOI YOUNGKWAN
IPC: H04L5/00
Filed: 2022-01-11
Abstract: The present disclosure relates to a 5 th  generation (5G) or pre-5G communication system for supporting a higher data transmission rate than a 4 th  generation (4G) communication system such as long term evolution (LTE). According to various embodiments of the present disclosure, a method of a terminal in a wireless communication system comprises the steps of: obtaining information bits for uplink control information; obtaining a transmission bit string on the basis of channel coding and scrambling for the information bits; generating a transmission complex sequence corresponding to the transmission bit string, from among a plurality of complex sequences; and transmitting, to a base station, a signal of the transmission complex sequence through a physical uplink control channel (PUCCH), wherein each of the plurality of complex sequences is based on a Zadoff-chu (ZC) sequence, and the length of the ZC sequence may be configured to be greater than the number of candidate values of the transmission bit string.
Patent WO-2023128048-A1 (WO)
Title: Cancer therapeutic combination comprising cancer-targeting trans-splicing ribozyme and immune checkpoint inhibitor
Inventor: LEE SEONG-WOOK
IPC: A61K48/00
Filed: 2022-01-21
Abstract: The present invention relates to a cancer therapeutic combination comprising a cancer-targeting trans-splicing ribozyme and an immune checkpoint inhibitor. The ribozyme of the present invention exhibits cancer cell-specific expression, is superb in terms of expression efficiency at a posttranscriptional level, anticancer activity against heterogeneous cancers, and stability in normal liver tissues, has a synergistic therapeutic effect on cancer when administered in combination with an immune checkpoint inhibitor, and can be used as a therapeutic modality for cancer resistant to an immune checkpoint inhibitor.
Patent WO-2022182017-A1 (WO)
Inventor: KIM HYUN JUN
IPC: A62B18/08
Filed: 2022-02-08
Abstract: 본 발명은 입체구조를 가지는 마스크에 관한 것으로, 마스크 본체와, 상기 마스크 본체의 양측에 결합되어 인체에 착용할 수 있도록 하는 귀걸이와, 상기 마스크 본체에 가로방향으로 다수 위치하는 주름부와, 상기 주름부의 전부 또는 일부에 위치하는 가로지지대를 구비하여, 마스크 본체의 표면적을 증가시키는 표면 확장부를 포함할 수 있다.
Patent WO-2022255606-A1 (WO)
Inventor: PARK YUN HEE
IPC: H01L51/00
Filed: 2022-03-16
Abstract: 본 발명은 양자점 발광소자용 화합물, 이를 이용한 양자점 발광소자 및 상기 양자점 발광소자를 포함하는 전자장치에 관한 것으로, 본 발명의 양자점 발광소자에서는, 정공수송층과 양자점 발광층 사이에 적절한 HOMO, LUMO 에너지 레벨을 가지는 발광보조층 물질을 포함함으로써, 정공수송층으로부터 정공의 이동을 효율적으로 조절할 수 있게 되고, 전자 주입에 대한 장벽 역할을 하게 되어 결과적으로, 양자점 발광층에서의 정공 및 전하 균형이 향상됨으로써 양자점 발광소자의 전체적인 소자 성능이 향상된다.
Patent WO-2022215928-A1 (WO)
Title: Display device
Inventor: LEE JONG CHAN
IPC: H01L27/12
Filed: 2022-03-29
Abstract: A display device is provided. The display device comprises: a first electrode and a second electrode which are disposed apart from each other on a substrate, the first electrode and the second electrode each including an electrode base layer, a main electrode layer disposed on the electrode base layer, and an electrode upper layer disposed on a portion of the main electrode layer; a first insulating layer disposed on the first electrode and the second electrode; a light-emitting element disposed on the first electrode and the second electrode; a first connection electrode which is disposed on the first electrode and is in electrical contact with the light-emitting element; and a second connection electrode which is disposed on the second electrode and is in electrical contact with the light-emitting element, wherein the first electrode includes a first portion among the main electrode layer, on which the electrode upper layer is not disposed, and the second electrode includes a second portion among the main electrode layer, on which the electrode upper layer is not disposed, and the light-emitting element is disposed on the first portion and the second portion.
Patent WO-2022255773-A1 (WO)
Inventor: YANG CHAN WOO
IPC: H01Q5/25
Filed: 2022-05-31
Abstract: 본 발명의 실시예에 따른 안테나 모듈은 접지부 및 유전부를 포함하는 기판; 제1 주파수 대역에 대응하는 길이를 갖도록 형성되고, 상기 기판의 제1 가장 자리 일측에 배치되는 제1 안테나; 상기 제2 주파수 대역에 대응하는 길이를 갖도록 형성되고, 상기 기판의 제2 가장 자리 일측에 배치되는 제2 안테나; 및 상기 제1 안테나 및 상기 제2 안테나 사이의 상기 제1 가장 자리 일측 또는 상기 제2 가장 자리 일측에 배치되는 스터브를 포함하고, 상기 스터브는, 상기 제1 안테나와 제1 거리만큼 이격 배치되고 상기 제2 안테나와 제2 거리만큼 이격 배치되며, 상기 제1 거리 및 상기 제2 거리는, 상기 제1 주파수 대역 및 상기 제2 주파수 대역에 대응하는 제1 파장 대역 및 제2 파장 대역에 기초하여 설정된다.
Patent WO-2023027491-A1 (WO)
Inventor: CHO JINHAN
IPC: C12Q1/28
Filed: 2022-08-24
Abstract: Provided is an enzyme electrode comprising: a support; an enzyme layer bonded to the support; and a conductive particle layer chemically bonded to the enzyme layer, wherein, in the enzyme layer and the conductive particle layer, conductive particles are directly bonded through functional groups of the enzyme.
Patent WO-2023167380-A1 (WO)
Title: 생분해성 실 제조 장치 및 방법, 그에 의해 제조되는 생분해성 실
Inventor: SONG MI HEE
IPC: A61B17/06
Filed: 2022-09-05
Abstract: 본 발명의 실시예에 따른 생분해성 실 제조 장치는, 생분해성 실을 공급하는 실 공급부와, 상기 실 공급부에 의해 공급되는 상기 생분해성 실의 외면에 코그를 형성하는 코그 형성부 및 상기 코그 형성부에 의해 상기 코그가 형성된 상기 생분해성 실에서 상기 코그를 상기 생분해성 실의 가상의 중심선에 대해 축 변형시키는 코그 축 변형부를 포함할 수 있다.
Patent WO-2023068611-A1 (WO)
Title: Lfp battery cell that enables easy measurement of soc
Inventor: HUH JUN WOO
IPC: H01M10/0585
Filed: 2022-10-07
Abstract: The present invention relates to an LFP battery cell that, to enable easy measurement of SoC of the LFP battery cell, comprises: an electrode assembly including at least one first monocell and at least one second monocell; and a battery case for accommodating the electrode assembly, wherein the first monocell and the second monocell each comprise positive and negative electrode tabs formed in opposite directions, the positive electrode tab of the first monocell protrudes in the same direction as the positive electrode tab of the second monocell and does not overlap the positive electrode tab of the second monocell.
Patent WO-2023090724-A1 (WO)
Title: Pixel circuit and micro-display apparatus comprising same
Inventor: JEONG MINSU
IPC: G02F1/1362
Filed: 2022-11-04
Abstract: Disclosed according to embodiments are a pixel circuit and a micro-display apparatus comprising same. The pixel circuit comprises: a first pixel circuit to which a voltage is applied from a driving circuit; a second circuit to which a voltage is applied from the first pixel circuit; and a capacitor formed between the first pixel circuit and the second pixel circuit.
Patent WO-2023090907-A1 (WO)
Inventor: HAN JEONG WAN
IPC: F01P7/14
Filed: 2022-11-17
Abstract: La présente invention concerne un module d'alimentation en eau qui comprend : un module de liquide de refroidissement comprenant un réservoir dans lequel le liquide de refroidissement est reçu, une soupape de conversion de sens pour commander l'écoulement du liquide de refroidissement dans une pluralité de sens, et une pompe de liquide de refroidissement pour pomper le liquide de refroidissement ; et une pièce d'assemblage de composant qui peut être couplée au module de liquide de refroidissement et possède une pièce de montage de véhicule qui peut être couplée à un véhicule, un passage de liquide de refroidissement étant formé dans la pièce d'assemblage de composant de façon à permettre l'écoulement du liquide de refroidissement. Étant donné que les composants de gestion de la chaleur sont reliés d'un seul tenant dans le module d'alimentation en eau, il est possible de réduire le nombre de composants et d'heures-personnes, d'augmenter la facilité de montage grâce à la modularisation, de réduire la charge sur la pompe à eau et d'augmenter la capacité d'extension pour le couplage des composants.
Patent WO-2023121126-A1 (WO)
Inventor: HWANG SUN MIN
IPC: G03B17/55
Filed: 2022-12-14
Abstract: 카메라 모듈은, 상부와, 상기 상부로부터 하방으로 연장되는 측부를 포함하는 제1바디; 상기 제1바디 내 배치되며, 상면이 상기 상부의 하면과 마주하는 렌즈 모듈; 상기 렌즈 모듈과 마주하는 이미지 센서를 포함하는 인쇄회로기판; 및 일단이 상기 인쇄회로기판과 연결되고, 타단이 상기 렌즈 모듈과 상기 상부 사이에 배치되는 히팅부재를 포함하고, 상기 상부의 하면에는 상기 히팅부재와 마주하는 홈이 배치된다.
Patent WO-2023121363-A1 (WO)
Inventor: KANG MIN HYEONG
IPC: H01M50/30
Filed: 2022-12-22
Abstract: La présente invention concerne un boîtier de batterie à rigidité élevée avec moins de fissuration lors du moulage et moins de dommages dus à un impact externe. Le boîtier de batterie de la présente invention comprend : une structure d'empilement de film de poche comprenant une couche barrière contre les gaz, une couche de substrat disposée sur une surface de la couche barrière contre les gaz, et une couche d'étanchéité disposée sur l'autre surface de la couche barrière contre les gaz ; au moins une partie coupelle présentant une forme évidée pour recevoir un ensemble électrode ; et une terrasse située sur au moins une partie de la circonférence de la partie coupelle, la partie coupelle comprenant une surface inférieure et une pluralité de surfaces circonférentielles entourant la surface inférieure, et une épaisseur de la couche barrière contre les gaz étant supérieure à 30 µm au niveau d'un coin où la surface inférieure et une paire de surfaces circonférentielles adjacentes entrent en contact les unes avec les autres.
Patent WO-2023153879-A1 (WO)
Title: Multi-rotor aircrafts with passively tiltable rotor groups and methods of making and using the same
Inventor: HONG YOO JUNG
IPC: B64C27/08
Filed: 2023-02-10
Abstract: This disclosure relates to various multi-rotor aircrafts including at least one passively tiltable rotor group which may be tilted, typically in a direction of their movement. More importantly, the passively tiltable rotor group can tilt on its own, without having to include any additional electric motor or other power generating devices. This disclosure relates to various multi-rotor aircrafts including various load sharing units capable of taking up at least a portion of a weight load of the aircraft to itself, thereby diverting that portion of the weight load from a tilting unit. Therefore, the tilting units may be tilted more easily under the reduced weight load and friction. This disclosure further relates to various methods of fabricating or operating such passively tiltable rotor groups, tilting units, or load sharing units, and various methods of incorporating such into the multi-rotor aircraft.