baber/WOPTO huggingface dataset:
Patent KR-20160011660-A (KR)
Inventor: SEHGAL ALFICA
IPC: A61K31/712
Filed: 2014-05-22
Abstract: 본 발명은 Serpina1 유전자를 표적하는 RNAi 작용제, 예를 들어 이중 가닥 RNAi 작용제, 및 Serpina1의 발현을 억제하기 위한 이러한 RNAi 작용제의 사용 방법, 및 Serpina1과 연관된 질병, 예를 들어, 간 장애를 가진 피검자의 치료 방법에 관한 것이다.
Patent KR-20160015275-A (KR)
Title: 조건부 채널 라우팅 및 인-플래이스 기능성을 갖는 재구성 가능한 명령 셀 어레이
Inventor: NOUSIAS IOANNIS
IPC: G06F15/78
Filed: 2014-05-27
Abstract: 스위치 박스의 어레이를 포함하는 재구성 가능한 명령 셀 어레이가 개시된다. 어레이 내의 각각의 스위치 박스는 어레이에서 이웃 스위치 박스들로부터 복수의 입력 채널을 수신하도록 구성되는 I/O 포트들의 세트를 포함한다. 스위치 박스 내에서, I/O 포트들 중 하나는 어레이에서 이웃 스위치 박스로 구동될 복수의 출력 채널들을 형성하기 위해 스위치 박스에 남아있는 I/O 포트들에 의해 수신된 입력 채널들로부터 조건부로 선택한다.
Patent KR-20170085678-A (KR)
Title: 마그네슘 재질의 성형물 금형장치
Inventor: KIM KWANG WO
IPC: B21D37/16
Filed: 2016-01-15
Abstract: 본 발명은 마그네슘 재질의 성형물 금형장치에 관한 것으로 바닥판과 기둥에 의하여 지지되는 사각의 하부지지 다이와 상기의 하부 지지 다이의 각 모서리에 구비되는 수직 가이드로 구성되는 하부 베이스 프레임과 상기의 하부지지 다이 중앙에 위치하며 상부에 적어도 하나 이상의 성형 다이와 각 모서리에 삽입홈이 구비되며 내부에 냉각 수단이 구비되는 하부 금형과 상기의 성형 다이 상측에 위치하며 가공 수단이 수직 방향으로 구비되는 사각의 상부 지지 다이와 상기의 상부 지지 다이의 각 모서리에 구비되며 상기의 수직 가이드와 탈착하는 가이드 삽입구로 구성되는 상부 베이스 프레임과 상기의  상부 베이스 프레임 하부에 결합하는 제 1압착판과 제 2압착판 사이에 스프링이 구비되며 상기의 제 1압착판과 제 2압착판에는 상기의 가공 수단이 이송되도록 각각 제 1, 2관통공이 구비되며 상기의 제 2관통공 외주 면에 결합하는 가열 수단이 구비되는 상부 금형으로 구성되어 성형부와 그 주위를 국부 가열하여 연신율을 높여 가공 시 발생하는 성형부의 균열 및 파손을 방지하고 비 성형부는 냉각하여 열에 의한 기계적 성질의 변화를 최소화하는 효과가 있다.
Patent KR-20170090236-A (KR)
Title: Liquid crystal cell
Inventor: LIM EUN JUNG
IPC: G02F1/137
Filed: 2016-01-28
Abstract: The present invention relates to a liquid crystal cell and the use thereof. The liquid crystal cell can switch between a transparent mode and a scattering mode, decrease in-plane unevenness due to differences in the solubility and dispersion characteristics of an additive to a liquid crystal, and have excellent driving voltage characteristics, haze characteristics, and reliability. The liquid crystal cell can be applied to various optical modulation devices such as a smart window, a window protective film, a flexible display element, a transparent display light blocking plate, an active retarder for 3D image display, and a viewing angle adjusting film. The liquid crystal cell comprises a liquid crystal layer containing a nematic liquid crystal and a reactive mesogen.
Patent KR-20170062347-A (KR)
Inventor: KIM DONG HYUN
IPC: A62D1/02
Filed: 2016-01-28
Abstract: 본 발명은 폐유를 재활용하여 제조되는 포소화약제 및 제조방법에 관한 것으로, 본 발명의 포소화약제는 폐유에서 얻은 계면활성제 40~80중량%, 양쪽성 계면활성제 20~60중량%를 포함하는 계면활성제혼합물, 상기 계면활성제혼합물 45~65중량%, 정제수 20~30중량%, 흡수성 증가제 3~9중량%, 동결방지제 4~10중량%, 우레아 2~6중량%, 점증제 2~4중량% 를 포함한다. 
또한, 본 발명의 폐유를 활용한 포소화약제의 제조방법은 폐유에서 얻은 계면활성제 40~80중량%와 양쪽성 계면활성제 20~60중량%를 혼합하여 계면활성제혼합물을 제조하는 제1단계, 계면활성제혼합물에 정제수 45~55중량%를 첨가하고 45~55℃의 온도로 20~40분 동안 교반하여 계면활성수용액을 제조하는 제2단계, 계면활성수용액에 흡수성 증가제 3~9중량%, 동결방지제 4~10중량%, 우레아 2~6중량%, 점증제 2~4중량%를 첨가하고 45~55℃의 온도로 1~8시간 동안 교반하여 포소화약제를 제조하는 제3단계를 포함한다.
Patent KR-20170095531-A (KR)
Title: 본딩시트를 이용한 ｆｐｃｂ의 제조방법
Inventor: JHON BYOUNG SOO
IPC: H05K3/46
Filed: 2016-02-15
Abstract: 본 발명은, 기판부와, 상기 기판부로부터 연장되며 절곡되는 절곡부를 포함하는 FPCB의 제조방법에 있어서, 베이스필름 상에 제1회로패턴층을 형성하는 단계: 상기 제1회로패턴층 상에 제1본딩시트(Bonding sheet)의 제1접착제층을 부착하는 단계와, 상기 제1접착제층 상에 보강판을 부착하는 단계를 포함하는 FPCB의 제조방법을 제공한다. 
본 발명의 FPCB의 제조방법을 따르면 , FPCB의 절곡부에 종래의 솔더 마스크 잉크 대신 제1본딩시트를 사용함으로써 낮은 반발력을 제공할 수 있고, 솔더 마스크 잉크 인쇄공정에 비해 공정이 단순하여 제조공정이 단순화되는 효과가 있다. 더욱이, 상기 보강판을 상기 제1 본딩시트를 이용하여 부착할 수 있기 때문에, 상기 보강판을 접착하기 위한 별도의 접착제가 불필요하여, 제조공정이 단순화되고, 제조비용이 더욱 절감된다.
Patent KR-20170099190-A (KR)
Inventor: PARK KI YOUNG
IPC: C02F1/52
Filed: 2016-02-23
Abstract: The present invention relates to a method of crystallizing magnesium ammonium phosphate, which recovers phosphorus and nitrogen from sewage or wastewater containing phosphorus and nitrogen by supplying magnesium thereto. Specifically, the present invention provides a method of crystallizing magnesium ammonium phosphate for the recovery of phosphorus and nitrogen from sewage or wastewater, which uses concentrate water in seawater desalination plants as a magnesium source. Additionally, the present invention provides a method of recovering phosphorus and nitrogen from sewage or wastewater, and a device for use for the method, wherein the method comprises the steps of: (a) supplying sewage or wastewater containing phosphorus and nitrogen, and concentrate water from seawater desalination plants containing magnesium, to a magnesium ammonium phosphate crystallization tank; (b) mixing the sewage or wastewater with the concentrate water from seawater desalination plants by using an airlift mixer inside the magnesium ammonium phosphate crystallization tank and performing reaction of the mixture; and (c) isolating magnesium ammonium phosphate crystals from the magnesium ammonium phosphate crystallization tank.
Patent KR-20160029780-A (KR)
Inventor: CONDIE BRIAN
IPC: H01L23/00
Filed: 2016-02-26
Abstract: The present invention relates to a hybrid semiconductor package. More specifically, the present invention relates to a semiconductor package comprising bonding wires or ribbons which are designed to be suitable to a varying maximum operation temperature. According to the present invention, the semiconductor package includes: a substrate; an RF semiconductor die attached to a first side of the substrate; a capacitor attached to the first side of the substrate; and a first terminal on the first side of the substrate. The semiconductor package further includes: copper or aluminum bonding wires or ribbons connecting the first terminal to an output of the RF semiconductor die; and gold bonding wires or ribbons connecting the capacitor to the output of the RF semiconductor die. The gold bonding wires or ribbons are designed to accommodate greater RF joule heating during an operation of the RF semiconductor die than the copper or aluminum bonding wires or ribbons. Corresponding production methods are also described.
Patent KR-20170102630-A (KR)
Inventor: WON BONG YEON
IPC: G01M3/04
Filed: 2016-03-02
Abstract: 본 발명은 부식성 가스, 가연성 가스 또는 독성가스가 지나는 벨로우즈의 본체 외부에 연성의 밀봉형 커버를 장착함으로써 벨로우즈 본체에서 누출되는 가스의 외부 유출을 차단함은 물론 이 커버를 투명 재질로 제작하여 내부 벨로우즈 본체의 손상 여부를 육안으로 확인할 수 있도록 하는 가스의 누출을 방지할 수 있는 벨로우즈에 관한 것으로, 주름관이 형성되는 본체; 상기 본체의 양측 말단에 결합되는 플랜지; 상기 플랜지와 본체의 이음부위에 결합되는 이너링; 상기 이너링과 결합되는 테두리가 양측 말단에 구비되며 상기 본체를 내포할 수 있는 내경을 가지는 커버; 및 상기 이너링 및 테두리와 결합되어 커버를 고정시키는 아우터링; 을 포함하는 것을 특징으로 한다.
Patent KR-20170109449-A (KR)
Title: A System for Managing a Personal Nutrition Based on a Health Analysis Using a Application and a Method for the Same
Inventor: KIM KI HAI
IPC: G16H10/60
Filed: 2016-03-21
Abstract: The present invention relates to a nutrition management system based on an application-based personal health analysis and a method thereof. The nutrition management system based on an application-based personal health analysis comprises: a nutrition management application (10) installed in a portable electronic device (P) of an individual; a nutrition management server (20) connected via the nutrition management application (10), and storing personal health, a diet, and nutrition management data; a calorie calculation module (CC) connected to the nutrition management application (10) to calculate a health effect of nutrition of food ingested by the individual; and a health analysis module (HA) for analyzing an effect of the ingested food on personal health according to the results calculated in the calorie calculation module (CC). The nutrition management application (10) provides information on a daily diet or daily intake of food to the individual by having a predetermined diet schedule.
Patent KR-20170110388-A (KR)
Inventor: NA HYUK HWI
IPC: G01L19/00
Filed: 2016-03-23
Abstract: 본 발명은 압력 센서를 고정 대상체에 고정시킬 수 있는 압력 센서 조립체에 관한 것으로서, 고정 대상체의 일부분에 설치되는 고정 블록; 상기 고정 블록에 착탈 가능하게 조립되고, 연결된 튜브를 통해 전달되는 매체의 압력을 측정하여 압력 측정 신호를 발생시킬 수 있는 압력 센서; 및 상기 압력 센서와 전기적으로 연결되어 상기 압력 측정 신호를 외부로 전달할 수 있는 커넥터;를 포함할 수 있다.
Patent KR-20170112048-A (KR)
Inventor: LEE HEE WON
IPC: B60R16/02
Filed: 2016-03-30
Abstract: 본 발명은 차량의 헤드 유닛과 스마트 디바이스 간 연결시, 폰 프로젝션이 자동 실행될 수 있도록 하는 차량용 인포테인먼트 시스템의 동작 제어 방법에 관한 것이다. 
이를 위해, 본 발명은 차량의 헤드 유닛에 탑재된 복수의 폰 프로젝션 중에서 어느 하나를 설정받는 폰 프로젝션 설정 단계; 상기 차량의 헤드 유닛에 제1스마트 디바이스가 연결되는 단계; 상기 차량의 헤드 유닛에 연결된 상기 제1스마트 디바이스가 상기 폰 프로젝션 설정 단계에서 설정된 폰 프로젝션을 지원하는지 판단하는 단계; 및 상기 판단결과 상기 제1스마트 디바이스가 상기 설정된 폰 프로젝션을 지원하는 경우에는, 상기 설정된 폰 프로젝션을 실행시키는 단계;를 포함하여 이루어지는 것이 바람직하다. 
이에 따라, 본 발명은 차량의 헤드 유닛과 스마트 디바이스 간의 연결시, 폰 프로젝션이 자동 실행될 수 있도록 함으로써, 차량의 헤드 유닛과 스마트 디바이스 간의 연결이 이루어졌을 때 사용자가 별도의 설정을 수행하지 않아도 되므로, 사용의 편의를 제공할 수 있게 된다.
Patent KR-20170121481-A (KR)
Inventor: CHO BYUNG CHUL
IPC: A63C11/02
Filed: 2016-04-25
Abstract: The present invention divides ski equipment to be safely stored in a locker having a locking device. The present invention provides the ski locker, removing foreign substances attached to skis while the ski equipment is stored in the locker, drying the skis, and having a ski management function of coating a bottom surface of the skis by using a coating agent.
Patent KR-20170122563-A (KR)
Inventor: LEE MOON YONG
IPC: H01L51/00
Filed: 2016-04-27
Abstract: The present invention relates to an apparatus for continuously refining an organic material to replace a material container by using a load lock chamber to perform continuous refining without vacuum break, in an apparatus for refining a high-purity organic light emitting device (OLED). In a continuous sublimation purification apparatus according to the present invention, a gate valve is installed at the front end of a vacuum chamber in which an organic material is sublimated and refined, to be connected to a load lock chamber, a vacuum device applying vacuum is installed in the load lock chamber, a shaft for replacing an organic material container is installed in a door of the load lock chamber, the shaft is fitted to a hollow ball bearing and is installed in the load lock chamber, sealing materials are installed at the front and rear of the hollow ball bearing to achieve sealing for forward and backward moving of the shaft, and a sealing material is also installed on the outside of the hollow ball bearing to achieve sealing for rotational motion of the hollow ball bearing. The present invention is a research conducted as a technology development project for regional specialized industry of Ministry of Commerce, Industry and Energy, and Korea Industrial Technology Development Agency.
Patent KR-20170127204-A (KR)
Inventor: KIM HWA YOUNG
IPC: G06T7/40
Filed: 2016-05-11
Abstract: Disclosed is a space modeling system. The system comprises: an input part receiving an input image; and a control part extracting at least one crossing point from at least one edge included in the input image, determining a type of the crossing point of the extracted at least one crossing point, and performing a space modeling in consideration of a surrounding color of the at least one crossing point based on a map corresponding to the input image. Therefore, user convenience can be improved.
Patent KR-20170127233-A (KR)
Inventor: SO SOON HONG
IPC: B60C23/02
Filed: 2016-05-11
Abstract: The present invention relates to a method for determining a tire state and giving an alarm method and a smart tire using the same, and more specifically, to a method for determining abnormality and giving an alarm to a driver by processing a measurement value of a tire state of a TPMS sensor by a sensor processor or a sensor information processor, and further, to an additional verification method of abnormality which is additionally performed to verify the determination of abnormality. In particular, the present invention relates to a method for determining a tire state and giving an alarm and a smart tire using the same, capable of providing a verification method suitable for a tire condition, such as pressure, a temperature, and acceleration, so as to increase reliability of an alarm.
Patent KR-20170131028-A (KR)
Inventor: SONG YOUNG SUN
IPC: H04L29/10
Filed: 2016-05-20
Abstract: The present invention relates to a private network client management system through a server of a public network, which is configured to manage a private network client in a server on a public cloud without any separate configuration to control a client in a private network, and to a management method using the same. More specifically, the private network client management system through a server of a public network comprises: a client connected to a private network; and a server constructed in a public network to transmit and receive data to and from the client, and managing the client configured on the private network. The client and the server exchange data with each other based on a representational state transfer application program interface (RESTful API), and the server operates after receiving data from the client.
Patent KR-20170133759-A (KR)
Inventor: KIM YONG JUN
IPC: A23N15/02
Filed: 2016-05-26
Abstract: According to the present invention, a rotation-type garlic peeling apparatus comprises: a center upright axis arranged to be perpendicular to the ground; a support unit which encircles the center upright axis and has a plurality of discharge holes which are installed in a lower end portion separated from the ground at a certain distance, discharge garlic peel, and communicate with an upper portion; a rotation disk which is installed above the support unit to be able to be rotated, has a plurality of circular blades formed in an arc shape on a surface and enables inserted garlic to be placed and rotate thereon; a cylinder unit which is arranged to be able to be elevated on the rotation disk along the center upright axis on the rotation disk; an air blowing unit which is arranged on the cylinder unit and blows air to peel garlic arranged on the rotation disk; an insertion hopper which is installed above the cylinder unit and allows separated garlic to be inserted; a discharge conveyer which is installed on one side of the insertion hopper and discharges the peeled garlic in the direction of an outlet; and a control unit which elevates the cylinder unit and operates needed components. As damage to garlic, caused by impact or friction when garlic is peeled, is prevented, quality of the peeled garlic becomes excellent. At the same time, peeling efficiency of garlic, which is automatically peeled, is significantly increased. Accordingly, work properties of the rotation-type becomes excellent, and costs for peeling garlic is significantly reduced.
Patent KR-20170134832-A (KR)
Title: Control apparatus
Inventor: KIM JUN HO
IPC: B65B57/10
Filed: 2016-05-26
Abstract: According to an embodiment of the present invention, a control apparatus may comprise: a medicine packaging preparing unit discharging a bundle of packaged medicine for post-process for a specific purpose of the bundle of the packaged medicines which are prepared in each capsule for a unit-dosage to proceed based on a medicine release request; and a post-process unit into which the bundle of packaged medicines discharged from the packaging medicine preparing unit is introduced to enable the post-process to proceed.
Patent KR-20170134013-A (KR)
Inventor: KIM HYOUNG HO
IPC: H04R1/10
Filed: 2016-05-27
Abstract: The present invention relates to a microphone-embedded earphone having a hearing aid function capable of enabling a user to listen to a sound source by being connected to an acoustic device, and also capable of assisting hearing acuity. The microphone-embedded earphone comprises: a speaker unit having a speaker mounted inside a first cover, and having one side thereof inserted into an ear of a user; and a microphone unit coupled to the other side of the speaker unit, and having a microphone embedded therein. The microphone unit includes: a second cover having a cord hole having a cord connected to the microphone passing therethrough, formed at one side thereof, and a microphone hole having an external sound introduced therein, formed at the other side thereof; a soundproofing material filled in the second cover, and surrounding the outside of the microphone except for a space in which the sound and the cord introduced through the microphone hole can be withdrawn; and a microphone installed inside the soundproofing material not to be in direct contact with the second cover.
Patent KR-20170137566-A (KR)
Inventor: KIM SUNG HO
IPC: A23L1/30
Filed: 2016-06-03
Abstract: The present invention relates to a method of preparing a lactic acid fermentation product of wood-cultivated ginseng having antioxidant effects and enhanced ginsenosides. The method comprises a step of inoculating a sterilized wood-cultivated ginseng composition solution with Leuconostoc mesenteroides DU-B1604(KCTC 13015BP). According to the method of the present invention, a lactic acid fermentation product of wood-cultivated ginseng having an increased content of ginsenosides, Rg3, Rh1 and Compound K can be produced.
Patent KR-20170143075-A (KR)
Inventor: KANG MOON SIG
IPC: A47K13/30
Filed: 2016-06-17
Abstract: Disclosed is a plane heater for a toilet seat. The plane heater of the present invention is included within a seat of a toilet so that the plane heater is configured to be radiating by a power portion applied from the outside, and comprises: a first substrate printed with a pattern radiated by power supplied from the power portion at one surface thereof in a conductive ink; and a second substrate irradiated by the power supplied from the power portion, and printed with an identical pattern with that of the first substrate in the conductive ink, wherein the patterns of the first substrate and the second substrate are configured to be overlapped and attached in a vertical direction. As such, the plane heater has an excellent heating performance than that of a conventional heater, and is able to effectively shield electromagnetic wave because a backward current patterning technique is applied so that current is flowing backward on both surfaces of the substrate.
Patent KR-20170142716-A (KR)
Inventor: KIM SUNG GU
IPC: F24F13/02
Filed: 2016-06-20
Abstract: The present invention relates to a grill table using radiant heat in which heat generated from a heating unit is transferred to a grill plate, smoke generated while meat or the like are cooked through radiant heat of the transferred heat on the surface of the grill plate is minimized, and smoke and oils produced while grilling are discharged in a convenient manner. Specifically, the grill table comprises: a table on which a grill plate is seated; a heating unit which is disposed inside the table; a grill plate which is disposed above the heating unit; and an exhaust unit. Through the above configuration, generation of smoke is minimized while the generated smoke and oils are easily discharged; and heat generated from the heating unit is transferred to the grill plate, thereby cooking food material through radiant heat of the grill plate, and thus, compared to direct heat, the food materials do not get burnt excessively, which as a result minimizes generation of smoke and prevents the food materials from sticking to the surface, thus enabling a convenient cleaning and allowing the grill plate to be kept hygienic at all time. Further, the produced oils and smoke are immediately sucked in and discharged without dispersing to the vicinity, thus controlling damage due to fine dust.
Patent KR-20170143275-A (KR)
Inventor: CHAE EUN HYUK
IPC: H01G2/06
Filed: 2016-06-21
Abstract: The present invention provides a multi-layered ceramic electronic part which can reduce acoustic noise. The multi-layered ceramic electronic part comprises: a ceramic body including a plurality of dielectric layers; an active unit including a plurality of first and second internal electrodes arranged to be alternately exposed through both end surfaces of the ceramic body in the ceramic body to position the dielectric layers therebetween; an upper cover unit formed on an upper portion of the active unit; a lower cover unit which is formed on a lower portion of the active unit, and is thicker than the upper cover unit; and a first and a second external electrode electrically connected to the first and the second internal electrode. The first and the second external electrode include a first and a second electrode layer which are arranged on both longitudinal sides and a lower surface of the ceramic body, and are not arranged on an upper surface of the ceramic body.
Patent KR-20180001183-A (KR)
Inventor: KYEONG DO HYEON
IPC: H01L31/0216
Filed: 2016-06-27
Abstract: The present invention relates to a front electrode structure of a solar cell, and a method for forming the same capable of improving a touch feature of a front electrode and an emitter layer by minimizing a touch area of the front electrode and the emitter layer when the front electrode of the solar cell is formed through a screen printing method. The front electrode structure of the solar cell according to the present invention comprises: a plurality of emitter layer touch electrodes; a finger electrode; and a bus bar electrode. The plurality of emitter layer touch electrodes are provided on a substrate of the solar cell and are touched with the emitter layer in the substrate. The plurality of emitter layer touch electrodes are separated and arranged in an area having the finger electrode, and an area having the bus bar electrode. The finger electrode covers the plurality of emitter layer touch electrodes included in the area having the finger electrode. The bus bar electrode covers the plurality of emitter layer touch electrodes included in the area having the bus bar electrode.
Patent KR-20170004882-A (KR)
Title: Semiconductor device and method for manufacturing same
Inventor: ISHIDO KIMINORI
IPC: H01L23/00
Filed: 2016-06-30
Abstract: The present invention relates to a semiconductor device to make a metal thin film wiring layer, which does not include a reinforcement fiber such as glass cloth or nonwoven fabric in an insulation layer, precise, to reduce the diameter of a metal via, and to reduce the interlayer thickness. The semiconductor device comprises: insulation material layers (101, 108) which include one or more semiconductor elements (107a, 107b) sealed by an insulation material (114b) not including a reinforcement fiber, a plurality of metal thin film wiring layers (102), and a metal via (109) electrically connecting the metal thin film wiring layers and connecting an electrode (106) of the semiconductor element to the metal thin film wiring layer (102); and a bending adjustment layer (123) which is disposed on one main surface side of the insulation material layers, and offsets bending of the insulation material layers (101, 108) to reduce bending of the semiconductor device.
Patent KR-20180003688-A (KR)
Inventor: KANG HEE WAN
IPC: A01N63/04
Filed: 2016-06-30
Abstract: The present invention relates to a composition for controlling bright diseases used for preventing or controlling bright diseases induced by Phytophthora capsici by comprising an extract extracted from a medium after cultivating Lentinula edodes as an active ingredient. Accordingly, a composition is extracted from a medium after shiitake mushroom is produced so a controlling composition can be manufactured without a simple process without extra process facilities. Also, there is almost no expense for raw materials, and raw materials can be easily procured from farms so production costs can be reduced. The composition can be used as an environment friendly organic farming material harmless to the human body.
Patent KR-20180003203-A (KR)
Inventor: EOM KI HWAN
IPC: G06K17/00
Filed: 2016-06-30
Abstract: Disclosed are an apparatus and a method for measuring oxygen. The apparatus for measuring oxygen according to an embodiment of the present invention includes: an indicator accommodating portion provided in a sealed space and accommodating an indicator whose color changes according to ionization in response to oxygen present in the sealed space; a voltage measuring portion having an electrode pair contacting the indicator and measuring a magnitude of a voltage generated between the electrode pair as the indicator is ionized; and a microcontroller for calculating the concentration of oxygen present in the sealed space from the measured magnitude of the voltage, thereby capable of visually confirming the concentration of oxygen present in the sealed space.