baber/WOPTO huggingface dataset:
Patent KR-20190107700-A (KR)
Title: 차량용 회생 제동 시스템 및 차량의 회생 제동 시스템을 작동시키기 위한 방법
Inventor: BAUER GOTTFRIED
IPC: B60T8/32
Filed: 2018-01-08
Abstract: 본 발명은, 마스터 브레이크 실린더(18), 2개의 제동 회로(10, 12), 적어도 하나씩의 제1 휠 브레이크 실린더(14a, 14b), 각각 하나의 제2 휠 브레이크 실린더(16a, 16b), 각각 하나의 저장 챔버(46a, 46b) 및 적어도 각각 하나의 밸브(32a, 32b, 34a, 34b, 36a, 36b, 38a, 38b), 전기 모터, 및 제어 장치(50)를 구비한 차량용 회생 제동 시스템에 관한 것이며, 상기 제어 장치는, 전기 모터의 회생 모드를 이용하여 요구된 목표 차량 감속도(a driver )와 동일한 회생 차량 감속도가 구현될 수 있는지의 여부를 결정하도록, 또는 이와 같은 상황이 최대 2초의 시간 간격 동안 지연되었거나 중단되었는지를 결정하도록, 그리고 필요한 경우 적어도, 2개의 제동 회로(10, 12)의 제1 휠 브레이크 실린더(14a, 14b)에 의해 야기된 제1 유압 차량 감속도가 증가할 수 있는 방식으로, 적어도 상기 2개의 제동 회로(10, 12)의 밸브(32a, 32b, 34a, 34b, 36a, 36b, 38a, 38b)를 제어하도록 설계된다.  또한, 본 발명은, 차량의 회생 제동 시스템을 작동시키기 위한 방법에 관한 것이다.
Patent KR-20190112798-A (KR)
Title: 반도체 장치 및 반도체 장치의 제조 방법
Inventor: NI WEI
IPC: H01L21/8234
Filed: 2017-02-14
Abstract: 기판(1)의 제1 주면에 형성된 제1 도전형의 제1 드리프트 영역(4)과, 기판(1)의 제1 주면에 형성되고 제1 드리프트 영역(4)보다 기판(1)의 깊은 위치까지 형성된 제1 도전형의 제2 드리프트 영역(41)을 갖는다.  또한, 제2 드리프트 영역에 접하는 제2 도전형의 웰 영역과, 웰 영역의 표면으로부터 수직 방향으로 연장 형성된 제1 도전형의 소스 영역과, 웰 영역과 이격되고 제1 드리프트 영역의 표면으로부터 수직 방향으로 연장 형성된 제1 도전형의 드레인 영역을 구비한다.  채널을 통과한 후의 전자의 유로가 넓어지므로, 저항을 저감할 수 있다.
Patent KR-20190131060-A (KR)
Title: 체결 조립체 및 대응 스위치 캐비닛 하우징
Inventor: BRUECK DANIEL
IPC: F16B37/04
Filed: 2018-02-14
Abstract: 본 발명은 프로파일 스트럿(1) 및 상기 프로파일 스트럿(1)의 개구(2)에 장착되는 플러그인 너트(3)를 포함하는 체결 조립체에 관한 것으로, 상기 플러그인 너트(3)는 걸쇠(4)에 고정된 나사식 너트(5)를 포함하는, 체결 조립체에 있어서, 상기 걸쇠(4)는 제1 및 제2 작동 단부(6, 7)를 가지며, 이들 작동 단부를 거쳐서 플러그인 너트(3)가 개구(2)로부터 돌출하고, 작동 단부(6, 7)가 서로에 대해 로킹되는 위치에서 개구(2)의 에지(2.1)가 걸쇠(4)의 리셉터클(8)에 수용되는 것을 특징으로 한다.  본 발명은 또한 대응하는 스위치 캐비닛 하우징에 관한 것이다.
Patent KR-20190129946-A (KR)
Title: 유기 화합물, 발광 소자, 발광 장치, 전자 기기, 표시 장치, 및 조명 장치
Inventor: TAKEDA KYOKO
IPC: C07F7/08
Filed: 2018-03-08
Abstract: 신규 유기 화합물을 제공한다.  색도가 높은 광을 방출하는 유기 화합물을 제공한다.  색도가 높은 청색 광을 방출하는 유기 화합물을 제공한다.  발광 효율이 높은 유기 화합물을 제공한다.  정공 수송성이 우수한 유기 화합물을 제공한다.  신뢰성이 높은 유기 화합물을 제공한다.  나프토[2,3- b ;7,6- b ']비스벤조퓨란 골격 또는 나프토[2,3- b ;7,6- b ']비스벤조싸이오펜 골격을 가지며 분자량이 5000 이하인 유기 화합물을 제공한다.  본 발명자들은 상기 유기 화합물이 발광 소자의 발광단(luminophor)으로서 매우 효과적인 골격인 것을 발견하였다.  상기 유기 화합물은 발광 효율이 높으며 양호한 청색 발광을 나타내므로, 상기 유기 화합물을 사용한 발광 소자는 발광 효율이 높은 청색 발광 소자로 할 수 있다
Patent KR-20190131102-A (KR)
Title: 인슐린 저항성의  악화예방  또는  개선제
Inventor: TOCHIO TAKUMI
IPC: A61K31/702
Filed: 2017-03-31
Abstract: (과제)인슐린 저항성의  악화를  효과적으로  예방  또는  인슐린 저항성을  개선할  수  있는  물질  및  방법  및  당뇨병,  내당능 이상,  비만증,  고지혈증,  동맥경화,  고혈압증,  심질환  또는  메타볼릭 신드롬을  치료하는  방법  및  그들  질환을  예방하는  방법을  제공한다. 
(해결수단)1-케스토오스를  유효성분으로  하는  인슐린 저항성의  악화예방  또는  개선제. 
본  발명에  의하면,  부작용이나  안전성을  거의  걱정하지  않고,  간편하고  또한  효과적으로  인간이나  동물에  있어서의  인슐린 저항성의  악화를  예방  또는  인슐린 저항성을  개선할  수  있다. 
또한  본  발명에  의하면,  인간이나  동물에  있어서의  인슐린 저항성의  악화를  예방  또는  인슐린 저항성을  개선함으로써  당뇨병,  내당능 이상,  비만증,  고지혈증,  동맥경화,  고혈압증,  심질환  또는  메타볼릭 신드롬의  예방  내지  치료를  할  수  있다.
Patent KR-20200007797-A (KR)
Title: 주기 수명이 긴 2차 배터리
Inventor: Lin meng chang
IPC: H01M50/437
Filed: 2018-04-10
Abstract: 본 명세서에는 고도로 안정한 금속 애노드(예를 들어, 알루미늄 이온) 배터리의 새로운 제조 방법이 제공된다. 일부 실시 형태에서, 배터리는 플루오르화 재료, 예를 들어 FEP 또는 PTFE를 배터리 내의 전해질과 반응하지 않는 화학적 상용성 봉입용기로서 포함한다. 일부 예에서, 본 명세서에 기재된 배터리는 다수의 주기 수명에 걸쳐 안정하며, 또한 긴 저장 시간 후에도 고도로 산성인 전해질 환경을 용인한다. 일부 예에서, 화학적 상용성 봉입용기는, 사용(예를 들어, 충전-방전 주기순환) 중에, 또는 사용 후에 만들어지는, 배터리 내에 존재할 수 있는 잔류수 및 HCl의 제거를 가능하게 하는 삽입된 튜브를 포함한다. 본 명세서에는 또한, 일부 예에서, 배터리 주기순환 중에 배터리 상에 진공을 연속 흡인하는 단계를 포함하는, 배터리의 사용 방법이 기술된다.
Patent KR-20200007801-A (KR)
Title: 분말 야금학적으로 제조된 부품
Inventor: RYNIO CHRISTOPHER
IPC: B22F5/00
Filed: 2018-04-26
Abstract: 본 발명은, 이론 밀도의 75 내지 90%의 범위의 밀도를 가지는 매트릭스로, 미네랄 고체 윤활제를 함유하는 철계 매트릭스를 구비한 밸브 시트 링 또는 밸브 가이드의 형태로 분말 야금학적으로 제조된 부품에 관한 것으로, 상기 미네랄 고체 윤활제는 상기 매트릭스의 소결 온도 이하의 용융 온도를 가지며, 상기 부품의 매트릭스의 나머지 기공 용적은 상기 고체 윤활제로 용융 침윤되는 것이다.
Patent KR-20190139287-A (KR)
Title: 회로 구성체
Inventor: TSUCHIDA TOSHIYUKI
IPC: H01F27/22
Filed: 2018-05-09
Abstract: 회로 기판과, 상기 회로 기판 상에 배치되고, 권선이 권취된 권취부를 갖는 코일 및 코어 부재를 구비하는 인덕터와, 상기 회로 기판 중 상기 인덕터가 배치된 면의 반대측에 배치된 방열판을 구비한 회로 구성체로서, 상기 회로 기판 중 상기 인덕터에 대응하는 영역에 관통 구멍이 형성되어 있고, 상기 방열판 중 상기 관통 구멍에 대응하는 영역에, 상기 관통 구멍을 관통하고 상기 회로 기판의 상기 인덕터가 배치된 면측으로 돌출되며 상기 코일 또는 상기 코어 부재에 전열적으로 접촉하는 받침 돌출부가 형성되어 있다.
Patent KR-20200006109-A (KR)
Title: Mhc 부류 i 및 부류 ii가 결여된 nsg 마우스
Inventor: BREHM MICHAEL A
IPC: A01K67/027
Filed: 2018-05-14
Abstract: 기능적 주조직적합성 복합체 I (MHC I)이 결여되고, 기능적 주조직적합성 복합체 II (MHC II)가 결여되도록 유전자 변형된 NOD.Cg -Prkdc     scid      Il2rg     tm1Wjl     /SzJ  (NOD- scid -IL2rγ null , NSG) 마우스가 본 발명의 측면에 따라 제공된다.  구체적인 측면에 따르면, 유전자 변형된 NSG 마우스는 NOD.Cg- Prkdc     scid      H2-K1     tm1Bpe      H2-Ab1     em1Mvw      H2-D1     tm1Bpe      Il2rg     tm1Wjl   /SzJ (NSG -(K     b      D     b     )   null  ( IA     null   )) 마우스, NSG-RIP-DTR  (K     b      D     b     )     null       ( IA     null   ) 마우스, 또는 NOD.Cg- B2m     tm1Unc      Prkdc     scid      H2     dlAb1-Ea      Il2rg     tm1Wjl   /SzJ (NSG- B2M     null      (IA IE     null   )) 마우스이다.  인간 면역 세포 및/또는 인간 종양 세포는 본원에 기재된 측면에 따른 유전자 변형된 면역결핍 마우스에게 투여되고, 1종 이상의 시험 물질의 검정이 제공된 마우스를 사용하여 수행될 수 있다.
Patent KR-20210087719-A (KR)
Title: Electronic apparatus and method for performing macro function
Inventor: SHIN JAE SEOCK
IPC: H04M1/725
Filed: 2020-01-03
Abstract: The present invention relates to an electronic device and a method for performing a macro function, wherein when a user inputs more than a preset number of digits, functions such as calling, switching, and holding can be performed automatically using existing input pattern information. According to an embodiment of the present disclosure, the electronic device for performing the macro function analyzes a user's input pattern to form input pattern information, receives a user input of a preset number of digits, and performs a function according to the input pattern information when the received user input and a part of the input pattern information are the same.
Patent KR-20210090916-A (KR)
Title: Electrolyte injection method and electrolyte injection apparatus
Inventor: CHUNG JIN HAE
IPC: H01M50/60
Filed: 2020-01-13
Abstract: The present invention relates to an electrolyte injection method and an electrolyte injection device, capable of easily suppressing occurrence of defects due to variations in the amount of an electrolyte injected by automatically controlling the injection amount of the electrolyte according to the number of battery assemblies loaded on a transfer pallet. The electrolyte injection device includes: an injection chamber; an electrolyte inlet; a control means; and a motor.
Patent KR-20200132657-A (KR)
Inventor: HONG JONG ILL
IPC: G11C11/16
Filed: 2020-01-15
Abstract: Disclosed are a spin logic device based on spin-charge conversion and a spin logic array using the same. According to an embodiment of the present invention, the reconfigurable spin logic array comprises: an input terminal receiving at least three current signals; a plurality of wires connected to the input terminal to transmit the current signal and including horizontal wires and vertical wires crossing each other; a first gate array which is connected to the input terminal through the wires and in which at least one first majority gate implemented based on the spin logic device is arranged; and a second gate array which is connected to the first gate array through the wires and in which at least one second majority gate implemented based on the spin logic device is arranged.
Patent KR-20210094719-A (KR)
Title: Cooking Vessel Made Of Brass For Induction Range and manufacturing method thereof
Inventor: SEO YOUNG GYU
IPC: A47J27/00
Filed: 2020-01-22
Abstract: A brass vessel for an induction cooktop of the present invention includes a vessel made of a mixture of copper and tin, and generates heat by generating an eddy current in the vessel by the magnetic field of the induction cooktop by spraying material powder magnetized by magnetic force on a part of the surface of the vessel.
Patent KR-20210098650-A (KR)
Title: The composition of disinfectant for veterinary usage containing thymol
Inventor: CHOI HYUNG KYU
IPC: A01N27/00
Filed: 2020-02-03
Abstract: The present invention relates to a composite composition of a disinfectant for animal disease prevention containing thymol to disinfect livestock, roads, and livestock-related vehicles for the purpose of preventing animal diseases that cause great economic damage to the livestock industry, such as avian influenza, foot-and-mouth disease, and African swine fever. More specifically, the composite composition includes 1 to 5% by weight of thymol, 7.5 to 12.5% by weight of acetic acid, 15 to 25% by weight of citric acid, 7.5 to 12.5% by weight of phosphoric acid, 5 to 10% by weight of polyoxyethylene lauryl ether, 2 to 6% by weight of polyoxyethylene octylphenyl ether, 4 to 8% by weight of sodium lauryl sulfate solution, 2.5 to 10% by weight of ammonium chloride, and 11 to 55.5% by weight of purified water. The composite composition of a disinfectant for animal disease prevention containing thymol can effectively prevent avian influenza, foot-and-mouth disease, and African swine fever, which are animal diseases that have recently become a global problem, due to its excellent disinfection effect even under sub-zero conditions.
Patent KR-20210104946-A (KR)
Title: Breathable and waterproof fabric with excellent breathable function
Inventor: KO KUNG CHAN
IPC: B32B27/30
Filed: 2020-02-14
Abstract: The present invention is a moisture-permeable waterproof fabric with excellent moisture permeability formed of a moisture-permeable waterproof film and a one-way moisture transfer fabric. The one-way moisture transfer fabric is formed a fiber fabric, one side of the one-way moisture transfer fabric is bonded to the moisture-permeable waterproof film, a hydrophobic coating layer is formed on a part of the other surface of the one-way moisture transfer fabric, the hydrophobic coating layer is formed of an absorption unit that absorbs moisture, and a moisture storage unit for storing moisture is formed between the hydrophobic coating layer and the moisture-permeable waterproof film, thereby increasing moisture permeability.
Patent KR-20210106162-A (KR)
Inventor: KIM KI HYUN
IPC: G06T17/05
Filed: 2020-02-20
Abstract: The present invention relates to a method for a robot to recognize an object. The method includes the following steps of: recognizing a space where a robot is driven based on semantic space intelligence received from a space information providing server; recognizing a random object located in the space; and storing reflecting space labeling information labeled on the space to object information about the recognized object to store the same as object recognition information. Here, the semantic space intelligence comprises: a first layer storing a global map displaying a drivable area and a non-drivable area for the robot in the space and a local map created based on the driving of the robot; a second layer storing object recognition information about objects recognized by the robot in the drivable area; and a third layer storing space information labeled on a plurality of drivable areas. Therefore, the present invention is capable of inferring a correlation between a space and an object.
Patent KR-20210109751-A (KR)
Title: Method for making of squid ink pancake
Inventor: LEE HEUNG YONG
IPC: A21D8/04
Filed: 2020-02-28
Abstract: The present invention relates to a method for manufacturing squid ink pancake to provide healthy snacks with the unique color of squid ink. According to the present invention, the method comprises: a dough manufacturing process of forming a dough by 22 to 28 wt% of mixing flour, 18 to 24 wt% of sugar, 9 to 15 wt% of eggs, 1 to 3 wt% of butter, 0.1 to 0.5 wt% of honey, 0.1 to 0.5 wt% of salt, 0.1 to 0.5 wt% of baking soda, 0.1 to 0.5 wt% of shrimp powder, 1.2 to 3 wt% of water, and 0.5 to 2.8 wt% of squid ink; a fermentation process of fermenting the kneaded dough for 40 minutes in a fermentation chamber at a temperature of 26℃ and a relative humidity of 75% and aging the fermented dough at room temperature or refrigeration for 12 hours; a dough completion process of mixing and stirring 33 to 39 wt% of water and the fermented dough to adjust the viscosity of the prepared dough to flow smoothly; and a baking process of squeezing 5 to 7 g of dough on an iron plate of a rice cake machine preheated to 170 to 180℃, sprinkling black sesame seeds on the top of the dough, and baking the dough.
Patent KR-20210110920-A (KR)
Title: Analysis method for multi-layered structures of inorganic material
Inventor: NARAE CHO
IPC: G01N23/04
Filed: 2020-03-02
Abstract: The present invention relates to a method capable of evaluating a multilayer structure of an inorganic material in a large area in a short time. By processing multiple samples at once with a simple pre-treatment process, analysis time can be shortened and high-quality results can be obtained. In addition, it is possible to minimize damage to the sample weakened after the high-temperature reliability test. By observing a clear image of the sample cross-section, changes in the sample can be quantitatively analyzed. The evaluation method of the present invention can be used to actively discover materials suitable for high-temperature long-term reliability evaluation for stable thermoelectric module development. The present invention comprises steps of: preparing a sample; preparing a cross section of the sample; milling the cross section; observing the milled section; and quantifying the change in structure within a device.
Patent KR-20210046519-A (KR)
Title: Animal feed using probiotics and its manufacturing method
Inventor: JUNG HYUNG HAK
IPC: A23K10/20
Filed: 2020-03-09
Abstract: The present invention relates to an animal feed using probiotics and a method for manufacturing the same, comprising: a culturing step (S1a), an S.C. culturing step (S1b) and a base mixing step (S1c); a mixing step (S2); a production step (S3); a cutting step (S4); a confirmation step (St); and a packaging step (S5). By minimizing the number of live bacteria that are killed by heat during animal feed production, when an animal consumes feed, many probiotics enter the body and multiply, making the intestinal environment acidic and inhibiting the reproduction of harmful bacteria, thereby maintaining a healthy intestinal environment. In addition, the present invention relates to an animal feed using probiotics for improving the immune system and a method for manufacturing the same.
Patent KR-20210014061-A (KR)
Inventor: ICHIHARA MASAHIRO
IPC: C23C14/56
Filed: 2020-03-12
Abstract: Provided are a nozzle unit, a crucible, a vapor deposition source, and a vapor deposition apparatus capable of suppressing a liquid or solid vapor deposition material from reaching a vapor deposition surface of a substrate. The nozzle unit comprises: a nozzle member (210) having a nozzle part (212); and a middle plate member (220) provided more on an inner side of a container body of the crucible than the nozzle member (210). The middle plate member (220) includes a plurality of through holes (223c) through which the vapor deposition material passes. All segments reaching second points as arbitrary positions in the plurality of through holes (223c) from a first point as an arbitrary position on the vapor deposition surface where the vapor deposition material is deposited are each blocked by at least one of a plurality of members constituting the nozzle unit (200).
Patent KR-20210115382-A (KR)
Title: learn play art using stickers
Inventor: LEE BOUNG JAE
IPC: G09B19/06
Filed: 2020-03-13
Abstract: The present invention relates to a method for learning languages through play art using image stickers. More specifically, infants aged 3 to 5 years comprehend a concept that each word has through activities with stickers as images to be categorized, bind a character image sticker, a representative image sticker, and a target image stacker in one group, and play sticking activities with why image stickers, imagination image stickers, and expression image stickers expressing how, thereby learning and acquiring languages through the activities.
Patent KR-20210117400-A (KR)
Title: Step actuator and electronic device
Inventor: YUN CHOI
IPC: H02K7/116
Filed: 2020-03-18
Abstract: A step actuator of the present invention includes: a drive shaft which is rotated by the power of a motor; a motor pinion which is connected to the drive shaft, to be rotated; reduction gears which are rotated in association with the rotation of the motor pinion; an idle gear which is connected to one of the reduction gears in a geared manner; an output driving unit which is spaced apart from the idle gear and is disposed to be rotatable; and an automatic locking unit which is disposed between the idle gear and the output driving unit, and when the idle gear is rotated by a certain angle, moves linearly so as to regulate a portion of the output driving unit, to limit the rotation of the output driving unit to form a locked state.
Patent KR-20210117402-A (KR)
Title: URL Capture information providing system and method thereof
Inventor: OK MOOL GYEUL
IPC: G06Q50/30
Filed: 2020-03-19
Abstract: The present invention relates to a capture URL information providing system and method. In the capture URL providing system includes a user terminal (100) and a web server (400), as the user terminal (100) captures an image from a website provided by the web server (400), the URL link information of the website on which the image capture is performed is extracted. Thereby, the URL link information is generated and interlocked at the same time as capture, so that it is directly linked to the original image and the original video, thereby having an effect of providing convenience to Internet users. In addition, the present invention provides an effect of storing all or part of a captured image together with URL link information.
Patent KR-20200116058-A (KR)
Title: Real time resistance monitoring of an arc welding circuit
Inventor: FLEMING DANIEL P
IPC: B23K9/10
Filed: 2020-03-26
Abstract: A welding or additive manufacturing power supply includes output circuitry configured to generate a welding waveform, a current sensor for measuring a welding current generated by the output circuitry, a voltage sensor for measuring an output voltage of the welding waveform, and a controller operatively connected to the output circuitry to control the welding waveform, and operatively connected to the current sensor and the voltage sensor to monitor the welding current and the output voltage. A portion of welding waveform includes a controlled change in current from a first level to a second level different from the first level. The controller is configured to determine a circuit inductance from the output voltage and the controlled change in current, and further determines a change in resistance of a consumable electrode in real time based on the circuit inductance.
Patent KR-20210122398-A (KR)
Title: Entrance installation type aerosol spray system capable of spraying of disinfectant and deodorant
Inventor: HWANG GUEN WO
IPC: B05B12/12
Filed: 2020-03-31
Abstract: The present invention relates to an aerosol spray device installed at an entrance or designated place of multi-use facilities to spray a sterilizer or deodorant in a fog state when a person passes through, which comprises: a gate body (1) formed with an access passage; a detection reaction sensor (10) installed on the upper side of the gate body (1) to detect the approach of a person; a button-type drug selection unit provided in the gate body (1); a plurality of injection nozzles (9) provided in the gate body (1); a drug storage unit disposed outside the gate body (1) and storing different types of drugs separately; an air compressor (2) disposed on the outside of the gate body (1); a piping system for supplying the chemical to each injection nozzle (9) using the compressed air of the air compressor (2); a plurality of valves installed for each supply pipe of the piping system connected to each injection nozzle (9) to control whether or not the chemical is injected; and a control unit for controlling the operation state of one or more of the plurality of valves and the air compressor (2) based on the signal received from the detection response sensor (10) and the drug selection unit.
Patent KR-20210123949-A (KR)
Title: Energy efficient gaze tracking method and apparatus based on simplification of cascade regression forest
Inventor: KO BYOUNG CHUL
IPC: G06N20/00
Filed: 2020-04-06
Abstract: The present invention relates to an energy-efficient pupil tracking method based on the simplification of a cascade regression forest. More specifically, the pupil tracking method includes the steps of: (1) generating an initial cascade coarse-to-fine regression forest (CCD-RF) composed of multiple layers of a cascade method using a plurality of regression forests and trained for the pupil positions in a coarse-to-fine method; (2) generating a lightweight CCD-RF by applying rule distillation according to the rule contribution based on feature importance to the generated initial CCD-RF; and (3) predicting the pupil position from an image using the lightweight CCD-RF. By removing unnecessary rules, it is possible to reduce the number of parameters and the amount of computation and minimize energy consumption while maintaining strong performance.
Patent KR-20210126334-A (KR)
Title: Ear Guard Having Structure For Preventing From Ear Pain
Inventor: PARK UI YEONG
IPC: A62B18/02
Filed: 2020-04-10
Abstract: Disclosed is an ear guard having an ear pain relieving structure. The ear guard according to an embodiment of the present invention is the ear guard capable of being bound to a part of a mask strap and being arranged between the mask strap and an ear surface of a wearer. The ear guard comprises: a guard body which forms an ear-touched surface of a curved structure on one surface facing the ear surface of the wearer, and forms a mask strap accommodating groove on the other surface; a mask strap supporting groove which is formed in a structure indented to a predetermined depth in both end units of the guard body; a pair of strap guide walls which protrude to a predetermined height by being adjacent to both sides of the mask strap accommodating groove on the other surface of the guard body; a first body extending unit in a plate-shaped structure which is extended from one side of the both end units of the guard body to a predetermined length; and a second body extending unit which protrudes to a predetermined length by being adjacent to the first body extending unit in both ends of the guard body. The present invention can provide the ear guard having a mask strap separation preventing function, a mask strap controlling function, a mask adhesion inducing function, and an ear pain preventing function.
Patent KR-20200126899-A (KR)
Inventor: HONG SEOK MOO
IPC: B60F3/00
Filed: 2020-04-14
Abstract: The present invention relates to an amphibious boat which can move both on land and on the water, and more specifically, to an amphibious boat having caterpillar tracks wherein caterpillar tracks are arranged on the tail of a hull to ensure smooth operation at the boundary between land and water and especially in an environment such as a tidal flat. The present invention includes a front wheel arranged on the bow of the hull and a caterpillar arranged on the stern of the hull to be movable on the caterpillar tracks. The caterpillar tracks have a structure which is connected to a hydraulic cylinder to be folded while rotating toward the stern according to ground conditions, so it can exclude any influence on the front wheel or rear wheel in operation and it can support and move the hull while being in contact with the ground in conditions such as a tidal flat under the control of a control part.