baber/WOPTO huggingface dataset:
Patent KR-20210041502-A (KR)
Title: Core-shell copolymer composition, method for preparing the core-shell copolymer composition and thermoplastic resin composition comprising the core-shell copolymer
Inventor: YOO KI HYUN
IPC: C08L51/04
Filed: 2020-09-28
Abstract: The present invention relates to a production method of a core-shell copolymer composition, which improves the impact strength and thermal stability of molded products at room temperature and low temperature. The production method of a core-shell copolymer composition comprises the steps of: forming a core by polymerizing a mixture for forming the core comprising a conjugated diene-based monomer, a first emulsifier, a second emulsifier, and a first electrolyte (S10); and in the presence of the core, polymerizing a mixture for forming a shell comprising an alkyl (meth)acrylate monomer to produce a core-shell copolymer (S20), wherein the first electrolyte is 1-alkyl-3-methylimidazolium tetrafluoroborate.
Patent KR-20220043715-A (KR)
Inventor: KANG HYUNJEONG
IPC: H04W24/10
Filed: 2020-09-29
Abstract: The present invention relates to a communication technique and a system for convergence between an IoT technology and a 5G or pre-5G communication system for supporting a higher data rate beyond 4G communication systems such as LTE. Based on 5G communication and IoT-related technologies, the present invention is applicable to intelligent services (such as smart home, smart building, smart city, smart or connected car, healthcare, digital education, retail, and security- and safety-related services). According to various embodiments of the present invention, it is possible to provide a method and an apparatus for supporting sidelink relay discovery in a wireless communication system.
Patent KR-20220047427-A (KR)
Inventor: LEE JAE YONG
IPC: G06Q10/08
Filed: 2020-10-08
Abstract: The present invention relates to a location mapping method and apparatus for managing pallet assets in a yard. Assets can be managed efficiently by mapping the location of pallet-based assets in a yard to a division determined according to a change in the positioning point of a tag.
Patent KR-20220048122-A (KR)
Inventor: CHO HYE MIN
IPC: C08J3/12
Filed: 2020-10-12
Abstract: The present invention relates to: surface-modified polylactic acid particles which comprise polylactic acid particles, and a coating layer positioned on the surface of the polylactic acid particles, wherein the coating layer includes a silane compound; and a method for manufacturing the same. The present invention provides: surface-modified polylactic acid particles having improved stability in various solvents, reduced degree of aggregation between particles, chemical resistance and heat resistance; and a method for manufacturing the same.
Patent KR-20200120590-A (KR)
Inventor: KWON KI CHUL
IPC: C04B35/63
Filed: 2020-10-12
Abstract: The present invention relates to a water-soluble core material and a method for preparing the same. According to the present invention, provided is a method for preparing a water-soluble core material, which comprises the steps of: (a) preparing a water-soluble inorganic binder; (b) preparing a mixture by mixing the water-soluble inorganic binder in an inorganic metal oxide; (c) injecting or pressing the mixture to prepare a core material; (d) preparing a sealant; and (e) coating the sealant on the surface of the core material. Accordingly, the present invention may provide a water-soluble core material prepared thereby.
Patent KR-20220049221-A (KR)
Inventor: JEONG SEOK HWAN
IPC: A21D8/04
Filed: 2020-10-14
Abstract: The present invention relates to pizza, functional well-being pizza dough, and a method for manufacturing the same. The method includes: an ingredient composition step of composing ingredients with 2,750 to 2,800 parts by weight of wheat flour, 220 to 230 parts by weight of soybean oil, 110 to 120 parts by weight of white sugar, 80 to 90 parts by weight of grain-nut mixed powder, 50 to 60 parts by weight of refined salt, 50 to 60 parts by weight of whey powder, 10 to 15 parts by weight of instant yeast, 2 to 3 parts by weight of chlorella powder, and 1 to 15 parts by weight of green tea powder; an ingredient mixing step of mixing the ingredients provided at the above composition ratio in a mixer; a division and airtight packaging step of dividing the mixed ingredients by 300 to 600 g, putting the ingredients into a polyethylene material, and performing airtight packaging; and a quick freezing step of putting the airtight packaged divided ingredients into a quick freezer and performing 30-minute quick freezing at -60 to -40℃. According to the present invention, the pizza dough contains a large quantity of fibers and supplies sufficient nutrition, and thus physically efficacious ingredients can be selected and mixed for functional pizza manufacturing. The functional action of each ingredient leads to various types of health promotion and body function maintenance. With the present invention, it is possible to provide a highly natural and nutrient-rich well-being food that can be enjoyed by anyone and can be used as a meal replacement and a nutritional food.
Patent KR-20220049795-A (KR)
Inventor: KIM SUN TAEK
IPC: C12M1/12
Filed: 2020-10-15
Abstract: The present invention relates to a method for preparing porous silica microrods. The silica microrods obtained according to the present invention have a high specific surface area to show a function of controlling support/secretion of an additional effective drug ingredient into the pores, and finally can be biodegraded by an aqueous solution used as a dispersion medium. Therefore, the silica rods obtained according to the present invention can be applied diversely in the fields of medicine and bioindustry. Particularly, the shape of the porous silica rod structures can be controlled depending on the type of an acid used as a catalyst and concentration of ammonium ions. Therefore, the porous silica rod structures have an advantage in realizing a 3D cell micro-environment similar to host immune cell culture.
Patent KR-20220051469-A (KR)
Inventor: KIM MAN HWAN
IPC: B63H9/02
Filed: 2020-10-19
Abstract: The present invention relates to a rotor sail operating structure for minimizing air resistance that configures a structure capable of opening and closing the exterior of a rotor to generate thrust by combining the rotor in a cylinder shape when the wind blow from the side, and to open the front part of the rotor when the wind blow from the front so as to allow the wind blowing from the front to pass through, thereby preventing the occurrence of additional resistance by the rotor.
Patent KR-20220052514-A (KR)
Inventor: NAM CHANGJOO
IPC: B25J19/06
Filed: 2020-10-21
Abstract: The present invention relates to a robot action control system for responding to a response delay that occurs when a robot and a user interact with each other. According to an embodiment, a system comprises: a delay time estimation unit for estimating a response delay time based on information related to a service to be provided by a robot; a storage unit for storing information related to actions that the robot can express in response to a response delay; a robot action determination unit for determining an action to be expressed in response to the response delay among the robot actions stored in the storage unit based on the response delay time; and a robot control unit for controlling the robot so that the robot expresses the action determined by the robot action determination unit in response to the response delay. Accordingly, the system enables the robot to express an appropriate action while a response is delayed, thereby reducing the delay experienced by a user and inducing natural interactions.
Patent KR-20220054976-A (KR)
Inventor: PARK HERN JIN
IPC: G01J1/04
Filed: 2020-10-26
Abstract: The present invention relates to an optical fiber sensor which is easy to manufacture and which has a low risk of failure, and a method for manufacturing the same. For the optical fiber sensor, a sensing head connected to an optical fiber cable covered with a tube having chemical resistance is sealed by forcibly being fitted and inserted into a cap, wherein the cap is molded by injection molding independently of the optical fiber sensor and is inserted later. To this end, the optical fiber sensor comprises: a sensing head which transmits and receives light and in which a connection member is integrally formed in a connection portion, to which an optical fiber cable is connected; a sealing member into which the optical fiber cable is inserted and which is forcibly pushed onto the outer side of the connection member of the sensing head in an interference fit manner to seal the connection member; and a cap into which the sensing head is inserted and which is forcibly pushed onto the outer side of the connection member to seal the seaming member again while covering the sensing head and part of the sealing member, wherein the cap is separately formed by injection molding.
Patent KR-20220055374-A (KR)
Inventor: CHOI SEONG MOON
IPC: A47G9/02
Filed: 2020-10-26
Abstract: The present invention relates to a comforter having diversity, wherein the comforter, as a quilt made of triple-weave fabric including outer fabric, a filler, and inner fabric, is composed of various quilts, a quilt of type A provided by quilting the outer fabric with the filler, which is intermediate fabric, and a quilt of type B provided by quilting the inner fabric with the filler, so that the quilt of type B suitable for relatively cold weather, the quilt of type A suitable for warm weather, and the like can be selected and used appropriately according to changes in the surrounding environment.
Patent KR-20220055903-A (KR)
Title: Apparatus and method for treating substrate
Inventor: KIM WON GEUN
IPC: B08B3/02
Filed: 2020-10-27
Abstract: The present invention provides a device for processing a substrate. The device for processing a substrate comprises: a processing container having a processing space; a support unit supporting a substrate in the processing space; a liquid supply unit for discharging a processing liquid to the substrate supported by the support unit; and a field control unit for adjusting an electric field formed in a peripheral region of the substrate supported by the support unit. The field control unit comprises: a power source for applying a voltage to the processing container; and a power line provided between the power source and the processing container.
Patent KR-20220058978-A (KR)
Inventor: CHO BEOM JOON
IPC: H01G2/04
Filed: 2020-11-02
Abstract: The present invention relates to an electronic component where one or more first and second multilayer capacitors are alternately stacked such that external electrodes are connected to each other in a first direction perpendicular to one surface of the first multilayer capacitor. The first multilayer capacitor has a plurality of internal electrodes stacked in a first direction, and the second multilayer capacitor has a plurality of internal electrodes stacked in a second direction perpendicular to the first direction.
Patent KR-20210086460-A (KR)
Title: Structure and method for transistors having backside power rails
Inventor: HUANG YU XUAN
IPC: H01L21/285
Filed: 2020-11-10
Abstract: The present disclosure provides one embodiment of a semiconductor structure. The semiconductor structure may include a substrate having a frontside and a backside; a gate stack formed on the frontside of the substrate and disposed over the active region of the substrate; a first source/drain feature formed on the active region and disposed at the edge of the gate stack; a backside power rail formed on the backside of the substrate; and a backside contact feature interposed between the backside power rail and the first source/drain feature, and electrically coupling the backside power rail to the first source/drain feature. The backside contact feature further includes a first silicide layer on the backside of the substrate. It is possible to improve device performance.
Patent KR-20210075851-A (KR)
Title: Gate driver and display device using the same
Inventor: SEOK NOH
IPC: G09G3/3225
Filed: 2020-11-17
Abstract: A gate driver and a display device using the same are disclosed. The gate driver includes: a first circuit unit for receiving a clock signal and an (n-1)^th carry signal from an (n-1)^th stage to charge a first control node; a second circuit unit including an inverter circuit for discharging a second control node during at least a portion of a charging period of the first control node by using a first high potential power source voltage, a first low potential power source voltage and a second low potential power source voltage and outputting an n^th carry signal through a first output node; and a third circuit unit charging a second output node with a second high potential power source voltage when the first control node is charged, and discharging a second output node up to the first low potential power source voltage when the second node is charged to output a pulse of a light emitting control signal. The present invention can prevent drop/rising of an output signal of the gate driver.
Patent KR-20220068332-A (KR)
Inventor: JEONG JI HYUN
IPC: A61H39/04
Filed: 2020-11-18
Abstract: The present invention relates a customized weight-sensing spine treatment system including: a support (110); an upper bed portion (120) including an upper bed (121), an upper curved traction driving portion (122), an upper rotation driving portion (123), an upper bed lifting driving portion (124), and an upper left/right bending driving portion (125); an intermediate bed portion (130) including an intermediate bed (131), an acupressure module (132), and an intermediate bed lifting driving portion (133); a lower bed portion (140) including a lower bed (141), a lower curved traction driving portion (142), a lower rotation driving portion (143), a lower bed lifting driving portion (144), and a lower left/right bending driving portion (145); a traction drive portion (150) including a traction drive motor (151), a load cell (152), a first fixed motor (153), and a second fixed motor (154); and a sensor portion including a cervical spine sensor (161) for detecting the weight of the cervical spine and a lumbar spine sensor (162) for detecting the weight of the lumbar spine, wherein the acupressure module (132) is lifted in proportion to the weight of the cervical spine to bring the acupressure module (132) into close contact with the curvature of the spine in the cervical spine, the upper bed portion (120) is lifted by a height corresponding to the lifting height of the intermediate bed lifting driving portion (133) to match the cervical spine axis, and flexion-traction, rotation, left and right bending, and traction of the cervical and lumbar spines of the actual spine movement are implemented, so that the spine is treated accurately and quantitatively.
Patent KR-20220069271-A (KR)
Title: Flow control unit with compliant structure
Inventor: PARK KWANGKUN
IPC: F02K9/52
Filed: 2020-11-20
Abstract: Disclosed in the present invention is a flow control device for controlling a flow rate in a pipe to be constant. The disclosed flow control device includes a main plate corresponding to the inner diameter of a pipe, wherein a through hole is formed in the center of the main plate to allow a fluid to flow therethrough, a sub plate corresponding to the size of the through hole and disposed on the front surface of the main plate to receive the pressure from the flowing fluid, and an expansion passage formed by connecting the circumference of the through hole and the circumference of the sub plate and expanded and contracted by the pressure applied to the sub plate. The expansion passage has a plurality of holes formed on the side to allow the fluid to flow and controls the flow rate as the cross-sectional areas are changed by the pressure.
Patent KR-20220074425-A (KR)
Inventor: NAM EUNSEOK
IPC: B23Q15/013
Filed: 2020-11-27
Abstract: 본 발명은 스핀들에 장착되는 다수의 공구날을 포함하는 하나 이상의 절삭 공구를 포함하고 상기 스핀들은 다수의 축으로 구동되어 피삭재를 절삭하는 절삭 가공 기기에서, 상기 절삭 공구의 공구 경로를 제어하기 위한 공구 경로 보정 모델을 생성하는 방법에 관한 것이다.
Patent KR-20220076748-A (KR)
Title: 기상 예측 정보 생성 방법 및 이를 수행하기 위한 컴퓨팅 장치
Inventor: NA SUNG JOON
IPC: G01W1/00
Filed: 2020-12-01
Abstract: 기상 예측 정보 생성 방법 및 이를 수행하기 위한 컴퓨팅 장치가 개시된다. 개시되는 일 실시예에 따른 컴퓨팅 장치는, 하나 이상의 프로세서들, 및 하나 이상의 프로세서들에 의해 실행되는 하나 이상의 프로그램들을 저장하는 메모리를 구비한 컴퓨팅 장치로서, 복수 개의 수치 예보 모델(Numerical Weather Prediction Model)에서 생성된 수치 예보 정보를 각각 수집하는 제1 데이터 수집 모듈, 기 설정된 예보 영역에 대한 기상 관측 정보를 수집하는 제2 데이터 수집 모듈, 각 수치 예보 정보 및 기상 관측 정보에 기초하여 복수 개의 수치 예보 모델 각각에 대해 모델 가중치를 산출하는 가중치 산출 모듈, 및 각 수치 예보 정보 및 각 수치 예보 모델의 모델 가중치에 기반하여 기 설정된 예보 영역에 대한 기상 예측 정보를 생성하는 기상 예측 모듈을 포함한다.
Patent KR-20220076844-A (KR)
Title: 복합소재부품 가공용 스핀들 머신
Inventor: LEE YONG IL
IPC: B23Q17/00
Filed: 2020-12-01
Abstract: 복합소재부품 가공용 스핀들 머신이 제공된다. 내부에 공간을 갖는 다면체 형상으로 형성되고, 개폐 가능한 도어를 포함하는 외관 프레임;과 상기 외관 프레임의 내측에 배치되어 대상물을 지지하고, 대상물의 높이 및 평탄도를 맞출 수 있는 베이스부; 및 상기 베이스부의 상단에 배치되어 대상물을 고정시키고, 대상물을 가공시킬 수 있는 측정부;를 포함하고, 상기 베이스부는, 판형 부재로 형성되되, 가장자리가 하측으로 절곡 형성되고, 측면에는 다수 개의 홀을 포함하고, 석정반으로 형성되어, 진동 흡수 및 내마모성을 갖는 특징이 있는 제1지지부; 및 상기 제1지지부와 수직되게 배치되고, 석정반으로 형성되어 진동 흡수 및 정확한 수직도를 맞출 수 있는 특징이 있는 제2지지부;를 포함하는, 스핀들 머신이 제공될 수 있다.
Patent KR-20220076889-A (KR)
Title: 가스 누설 감지 센서 및 이의 제조 방법
Inventor: LEE SEUNG TAE
IPC: G01D11/24
Filed: 2020-12-01
Abstract: 본 발명에 따르면 내부공간이 형성된 하우징; 하우징에 설치되어 타겟 가스를 하우징 내부공간으로 통과시키는 가스필터; 가스필터의 상방에 위치되며, 내측이 가스필터를 통과한 가스의 감지공간을 형성하고, 외측면에서 외측으로 돌출된 돌기가 형성되어 하우징에 압입됨에 따라 가스필터를 고정하는 필터홀더; 필터홀더의 상방에 위치하고 감지공간의 상측에 위치되어 감지공간으로 유입된 가스를 감지하는 가스감지부가 마련되며, 가스감지부에서 가스가 감지된 것을 전기적 신호로 변환하는 회로기판; 하우징과 회로기판 사이에 위치되고, 회로기판의 결합시 하방으로 가압되어 회로기판을 고정시키며, 필터홀더를 실링하는 탄성체;를 포함하는 가스 누설 감지 센서가 소개된다.
Patent KR-20220078815-A (KR)
Inventor: LEE JEH WON
IPC: B25J9/10
Filed: 2020-12-04
Abstract: 본 발명은 병렬형 동역학 알고리즘을 이용한 협업로봇의 고속 토크 산출 시스템에 관한 것이다. 
본 발명에 따르면, 병렬형 동역학 알고리즘을 이용한 협업로봇의 고속 토크 산출 시스템에 있어서, 협업로봇의 각각의 축의 속도 및 가속도를 연산하는 연산부, 그리고 상기 연산된 축의 속도 및 가속도를 병렬 알고리즘에 적용하여 상기 협업로봇의 각각의 축의 토크를 연산하는 제어부를 포함한다. 
이와 같이 본 발명에 따르면, 기존의 반복적 회귀분석(Recursive Method)를 이용하여 협업로봇의 각각의 축의 토크를 연산하는 방법보다 빠르게 협업로봇의 각각의 축의 토크를 연산할 수 있다.
Patent KR-20220080855-A (KR)
Title: 반도체 장치
Inventor: HA RYONG
IPC: H01L21/8234
Filed: 2020-12-08
Abstract: 소자 성능 및 신뢰성을 개선할 수 있는 반도체 장치를 제공하는 것이다.  반도체 장치는 하부 패턴과, 하부 패턴과 제1 방향으로 이격된 시트 패턴을 포함하는 활성 패턴, 하부 패턴 상에 배치되고, 시트 패턴을 감싸는 게이트 전극을 포함하는 게이트 구조체로, 게이트 전극은 제1 방향과 수직인 제2 방향으로 연장된 게이트 구조체, 및 하부 패턴 상에 배치되고, 시트 패턴과 접촉하는 소오스/드레인 패턴을 포함하고, 시트 패턴 및 소오스/드레인 패턴 사이의 접촉면은 제2 방향으로 제1 폭을 갖고, 시트 패턴은 제2 방향으로 제1 폭보다 큰 제2 폭을 갖는다.
Patent KR-20220081788-A (KR)
Title: 광학계
Inventor: SIN DOO SHIK
IPC: G02B9/64
Filed: 2020-12-09
Abstract: 발명의 실시예에 개시된 광학계는 물체측으로부터 상측 방향으로 광축을 따라 순차적으로 배치되는 제1 렌즈, 제2 렌즈, 제3 렌즈, 제4 렌즈, 제5 렌즈, 제6 렌즈, 제7 렌즈, 및 제8 렌즈를 포함하고, 상기 제1 렌즈는 양의 굴절력을 갖고 물체측 면이 볼록하며, 상기 제2 렌즈는 음의 굴절력을 갖고 상측 면이 오목하며, 상기 제6 렌즈는 물체측 면 및 상측 면 중 적어도 하나가 변곡점을 가지며, 상기 제7 렌즈는 양의 굴절력을 갖고 상측 면이 볼록하며, 상기 제8 렌즈는 음의 굴절력을 가지며, 물체측 면 및 상측 면이 적어도 하나의 변곡점을 가지며, 상기 제1 내지 제8 렌즈의 중심부 두께 중에서 상기 제7 렌즈의 중심부 두께가 가장 두꺼울 수 있다.
Patent KR-20220083190-A (KR)
Inventor: KIM EUNG GI
IPC: B64C39/02
Filed: 2020-12-11
Abstract: 본 발명은 외부공기의 흡입과 압축 및 배기를 하나의 장비에 구현하여 추진력을 형성하는 기술에 대한 것으로, 본 발명에 따르면, 밀폐된 하우징 내부에 회전하는 유동블레이드와 격벽블레이드의 상호 접촉과정에서 공기의 압축을 통한 배기와 흡기를 구현할 수 있도록 하며, 격벽블레이드에 자성을 인가하고, 유동블레이드역시 자성을 구비하도록 하는 자성체로 구현하여, 상호 회전시 인력과 척력에 따른 회전 반응 속도를 강화하여, 추진체로서의 공기 압축 및 배출 효율을 강화할 수 있는 추진장치를 제공할 수 있다.
Patent KR-20220083304-A (KR)
Title: 타격 기능을 갖는 스크래퍼
Inventor: JANG YOUNG HA
IPC: B08B7/02
Filed: 2020-12-11
Abstract: 본 발명은 타격 기능을 갖는 스크래퍼에 관한 것이다. 보다 상세하게는, 바닥면 또는 벽면에 붙은 접착물을 제거할 때 제거하려는 힘에 타격 힘이 더해질 수 있도록 하여 보다 많은 힘을 전달하도록 하여 작업 능률을 올리고, 회동막대를 회동시킬 수 있도록 함으로써, 밀개 방식과 끌개 방식을 혼용할 수 있도록 하여 작업 다양성을 증대 시키는 타격 기능을 갖는 스크래퍼에 관한 것이다.
Patent KR-20220085858-A (KR)
Title: 충전 제어 장치 및 방법과, 전기 차량 제어 장치 및 방법
Inventor: CHAE SEOK MIN
IPC: B60L58/16
Filed: 2020-12-15
Abstract: 본 실시예들은 차량의 충전 제어 장치 및 방법과, 전기 차량 제어 장치 및 방법에 관한 것이다. 충전 제어 장치는 충전 장치에 포함된 배터리 별 충전상태 정보를 수신하는 수신부; 및 충전 장치에 포함된 배터리 별 충전상태 정보와 기 설정된 배터리 별 정상 데이터와 비교하여 충전 장치에 포함된 배터리 별로 충전 상태를 진단하고, 진단 결과에 따라 충전 장치에 포함된 배터리 별로 알림이 발생되도록 알림 신호를 생성하는 제어부를 포함할 수 있다.
Patent KR-20210082357-A (KR)
Title: Grinding mechanism and grinding apparatus
Inventor: TAKAMORI YUDAI
IPC: B24B41/00
Filed: 2020-12-15
Abstract: The present invention relates to a grinding instrument and a grinding apparatus. The present invention makes flatness constant in rough grinding and finish grinding with respect to a grinding object. The grinding instrument of the present invention comprises: a table (2) for holding a plate-shaped grinding object (W); a table moving unit (3) for linearly reciprocating the table (2) within a predetermined range along one direction; a coarse grinding unit (4) which moves within a movement range of the grinding object (W) by the table moving unit (3), and grinds the grinding object (W) rough; and a finish grinding unit (5) which moves within the movement range of the grinding object (W) by the table moving unit (3), and finish-grinds the grinding object (W).
Patent KR-20220087259-A (KR)
Title: 전기차용 동력 변속 장치
Inventor: SEOL IN HWAN
IPC: F16H63/30
Filed: 2020-12-17
Abstract: 동력 변속 장치는 구동축과, 구동축과 평행하게 배치되는 피동축과, 그 두 축에 대해 꼬인 위치(skew position)로 배치되는 제1 부축(layshaft)을 포함한다.  구동축과 제1 부축 간에 역방향으로 설치된 제1 웜 기어가 동력을 전달한다.  제1 부축과 피동축 간에 순방향으로 설치된 제2 웜기어가 동력을 전달한다.  
제1 부축을 경유하는 동력 전달 경로와 유사한 구조를 가지지만 다른 회전비를 가지는 동력 전달 경로가 추가로 구비될 수 있다.  나아가 2개의 상이한 회전비를 가지는 동력 전달 경로 중 하나를 선택하기 위해 동력 전달 선택 수단을 더 포함할 수 있다.   추가적인 양상에 따르면, 동력 변속 장치는 피동축 측의 회전 위치를 검출하여 그에 따라 구동축 측의 회전 위치를 제어하여 변속 충격을 줄일 수 있다.
Patent KR-20220091309-A (KR)
Title: 광 변조 소자 및 이를 포함하는 전자 장치
Inventor: PARK JUNG HYUN
IPC: G02B5/18
Filed: 2020-12-24
Abstract: 광 변조 소자는 소정 파장 대역의 입사광을 변조하는 것으로, 제1 반도체층; 상기 제1 반도체층 상에 배치되고, 인가 전계에 따라 변하는 굴절률을 가지며, 다중 양자 우물 구조를 가지는 활성층; 및 상기 활성층 상에 배치되며, 제1방향으로 연장된 복수의 그레이팅이 상기 제1방향과 수직인 제2방향을 따라 반복 형성된 그레이팅 패턴을 구비하는 제2 반도체층;을 포함한다. 광 변조 소자는 그레이팅 패턴에 의해 형성되는 길잡이 모드 공진에 따라 높은 변조 효율을 나타낼 수 있다..
Patent KR-20220097567-A (KR)
Title: Manufacturing method of recycled PET pellets using waste PET bottles
Inventor: KIM JIN TAE
IPC: C08G63/183
Filed: 2020-12-30
Abstract: The present invention relates to a manufacturing method of recycled PET pellets having high unique viscosity caused by solid-state polymerization, wherein waste PET bottle flakes obtained by grinding waste PET bottles are used to inhibit hydrolysis caused by moisture in a reproduction process. The manufacturing method of the present invention comprises the following steps of: sorting out transparent waste PET bottles only from collected waste PET bottles; grinding the sorted bottles into flakes; crystallizing and drying the flakes; and molding a solid-state polymerization and a solid-state polymerized material into pellets to manufacture recycled PET pellets. According to the present invention, manufactured are the PET pellets having higher unique viscosity (IV) due to hydrolysis caused by moisture and solid-state polymerization. In addition, the recycled PET pellets having higher unique viscosity (IV) are used to produce high-quality of PET molded products, thereby providing commercial advantages.
Patent KR-20220096148-A (KR)
Title: Apparatus and method for controlling air conditioning of vehicle
Inventor: HONG GYU SIK
IPC: B60H1/32
Filed: 2020-12-30
Abstract: According to an embodiment of the present invention, a device for controlling air conditioning of a vehicle comprises: a compressor compressing refrigerant gas of an air conditioner of a vehicle; an evaporator cooling indoor air of the vehicle by using the compressed refrigerant gas; and a control unit controlling an operation duty ratio of the compressor upward from a preset operation duty ratio and controlling target temperature of the evaporator downward from preset target temperature. Therefore, the present invention rapidly removes moisture generated in a windshield to easily secure driving sight of a driver and stabilizes power consumption of the air conditioner to improve fuel efficiency.