baber/WOPTO huggingface dataset:
Patent KR-20020041867-A (KR)
Title: The electronic authentication and payment method using CID(caller identification disply) in electronic transaction
Inventor: KIM SUNG NYUN
Filed: 2000-11-29
Abstract: PURPOSE: An electronic authentication and payment method using CID(caller identification display) in electronic transaction is provided to authenticate a purchaser by using a caller ID and to make the purchaser pay for articles or services by inputting a PIN(Personal Identification Number) of a bank account. CONSTITUTION: A telephone number and transaction information of a purchaser are inputted by a seller(201). The telephone number of the purchaser is checked by a caller ID indication service when the purchaser makes a call. The purchaser inputs transaction information and the PIN of a bank account(202). The telephone number inputted by the seller is compared to one indicated by the caller ID indication service(203). The transaction information inputted by the seller is compared to the transaction information inputted by the purchaser(205). The PIN inputted by the purchaser is compared to one stored in a database(206). If the telephone number, the transaction information and the password are verified, a payment is approved(208). If at least one of the telephone number, the transaction information and the password are not verified, the disapproval of the payment is informed to the purchaser and the seller(204).
Patent KR-20020042073-A (KR)
Title: Device of charging into coal oven
Inventor: KIM CHEOL SU
IPC: C10B31/02
Filed: 2000-11-30
Abstract: PURPOSE: Provided is a carbonization chamber charging apparatus, which can prevent dust leakage frequently occurring on charging due to damage of dustproof fabric by flame and poor connection of inner pipe and outer pipe of drop sleeve. CONSTITUTION: The carbonization chamber charging apparatus consists of an inner pipe(1) and outer pipe(2). The inner pipe(1) is connected to cylindrical lower sleeve(11); an outer sleeve(23) which is positioned on top surface of lower protruded frame(11-1) of the sleeve(11); a long load(12) which has a lower part connected to upper circumference by upper protruded frame(11-2) and connection pin(14); and a stack(21) having upper spring washer(17) at its outer side. The outer pipe(2) is connected to outer outlet(30) which is formed on central lower part of cylindrical clamp(29); sealing(32) which contacts with inner outlet(34) at top surface of the upper outlet(30); inner underside(33) located on top of the clamp(29); and lower top surface(31) of the outer sleeve(23).
Patent KR-20020045638-A (KR)
Inventor: CHOI YONG CHANG
IPC: A61C8/00
Filed: 2000-12-09
Abstract: PURPOSE: A dental implant and a head of a compaction drill are provided, which implant has improved strength, increases stability of the dentary bone, and effectively closes the dentary bone, so that dental prosthesis can be carried out immediately after a fixture is implanted. CONSTITUTION: The dental implant has an abutment region(210) in the upper part wherein an artificial crown is fixed; an fixture region(220) in the lower part which is implanted in the jawbone; and a settlement region(230) between the abutment region(210) and the fixture region(220), in which the abutment region(210) has a crown cap made from acryl resin for fixing the fixture.
Patent KR-20010062304-A (KR)
Inventor: HALL TIMOTHY J
IPC: G06F17/50
Filed: 2000-12-09
Abstract: PURPOSE: An optimal design method of an HVAC(heating, ventilation and air conditioning) air-handling assembly for a climate control system is provided to reduce working hours and expenses by designing optimally and promptly, and to analyze performance by using automated design parameter according to design, manufacturing and engineering. CONSTITUTION: A basic design of an HVAC air-handling assembly is performed(210), and the performance of the basic design of the HVAC air-handling assembly is analyzed with applying engineering analysis technique(220). The model for basic design of the HVAC air-handling assembly is generated with a design tool such as CAD(computer aided design), and the surfaces are operated with a library. The basic design model is analyzed with an analyzing tool such as computational fluid dynamics. The basic design of the HVAC air-handling assembly is modified based on the analysis of the performance(235). The design of the HVAC air-handling assembly is generated with applying the optimal basic design of the HVAC air-handling assembly. The HVAC air-handling assembly is designed promptly and efficiently.
Patent KR-20020046100-A (KR)
Title: Permanent hair colorant without irritating to sensitive skin
Inventor: JUNG SANG UK
IPC: A61K8/30
Filed: 2000-12-12
Abstract: PURPOSE: Provided is a permanent wave agent containing a dye selected from a direct dye, nitro dye and natural dye, an alkaline agent for swelling a cuticle layer to form an ionic bonding of the dye to the carboxyl group of hair protein and persulfate. Whereby, the agent permits quick penetration of the dye and long-term maintenance of dyed color without causing no side effects such as skin allergy. CONSTITUTION: This permanent wave agent comprises a first formulation containing a dye and alkaline agent and a second formulation containing an oxidant, chelate stabilizer and pH controller, wherein the first formulation contains 0.01 to 10.0% by weight of one or more dyes selected from direct dye, nitro dye and natural dye, 1.0 to 50.0% by weight of one or more alkaline agents selected from monoethanol amine, sodium hydroxide, sodium metasilicate, sodium carbonate, sodium silicate, sodium sulfate, sodium hydrocarbonate, magnesium carbonate, magnesium hydroxide, magnesium oxide and magnesium silicate and 1.0 to 70.0% by weight of persulfate selected from ammonium persulfate, potassium persulfate, calcium persulfate and magnesium persulfate.
Patent KR-20020047828-A (KR)
Title: Photocatalytic film and the manufacturing method of it
Inventor: CHOI U SEOK
IPC: B01J37/02
Filed: 2000-12-14
Abstract: PURPOSE: A photocatalyst layer that can keep its intrinsic characteristics of degradation effect on contaminants and super hydrophilicity even under severe outdoor conditions without undergone heat treatment at high temperatures is provided, and a preparation method thereof is also provided. CONSTITUTION: The preparation method includes the steps of applying a U.V hardening resin (53) on a substrate (51); attaching hard particles (55) with a particle size distribution of 0.05 to 5 micrometers onto the substrate; and dipping the substrate in a solution in which photocatalyst particles (59) is dispersed so that photocatalyst particles are coated over the hard particles.
Patent KR-20020051320-A (KR)
Title: A method for producing surface-treated steel sheet with superior corrosion resistance and lacquer adhesion for welded can
Inventor: CHO JUN HYEONG
IPC: C23C28/00
Filed: 2000-12-22
Abstract: PURPOSE: A method for producing surface-treated steel sheets with superior corrosion resistance and lacquer adhesion for welded can is provided, in which silane compounds are coated on the surface of chrome hydroxide plated layer. CONSTITUTION: In a method for producing surface-treated steel sheet having granular tin plated layer, chrome plated layer, and chrome hydroxide plated layer, the method is characterized in that 0.003-0.1 mol of one or more silane compounds selected from the group consisting of amino propyl trimethoxy silane, amino propyl triethoxy silane, N-2-amino ethyl-3-amino propyl trimethoxy silane, vinyl-tris-2-methoxy ethoxy silane is coated on the surface of the chrome hydroxide plated layer. In this method, the granular tin plated layer is formed by (i) dipping a steel sheet in an electro-tin plating solution containing bivalent tin 10-40g/L, phenolsulfonate 10-20g/L, and ethoxylated naphthol sulfonate 0.001-2g/L and then (ii) tin-plating under a plating current density of 2-24A/dm¬2 and an appliance rate of 5-60% in the temperature range of 25-55°C. Obtained granular tin plated layer has granularity of 0.1 to 0.4 μm and deposited in a plating amount of 10-150mg/m¬2.
Patent KR-20020050892-A (KR)
Title: Polyolefin nano-composite
Inventor: JUNG WON BEOM
IPC: C08F110/06
Filed: 2000-12-22
Abstract: PURPOSE: Provided are polyolefin nanocomposites excellent in strength, impact property, heat-resistance, fire retardancy, transparency, and gas and liquid permeation preventing ability. CONSTITUTION: The polyolefin nanocomposites are produced by polymerizing olefin monomers in the presence of a catalyst system comprising a supported catalyst comprising a polymer, a silicate clay mineral, and a transition metal compound and a co-catalyst being alkyl aluminoxane, wherein the olefin monomers are ethylene, propylene, 1-pentene, 1-butene, 4-methyl-1-pentene, 1-hexane, 1-octene, ethylidene, vinyl cycloalkane, and etc., or a mixture thereof.
Patent KR-20020058762-A (KR)
Title: Method for Providing Authentication about user's information using Telephone number electronic certification
Inventor: SONG HYEON SEON
IPC: H04L9/32
Filed: 2000-12-30
Abstract: PURPOSE: A method for authenticating user information using a certificate of telephone number authentification is provided to enhance reliability and correctness by using a certificate of telephone number. CONSTITUTION: A user terminal portion is used for requesting an information service and a certificate of telephone number. The user terminal portion is formed with a communication terminal portion for requesting the certificate of telephone number to a telephone number certificate issue portion(100) through a communication network(30) and a data terminal portion for receiving the certificate of telephone number from the telephone number certificate issue portion(100) through the communication network(30). An information service provider(50) provides the information service to the user. A telephone number certificate issue portion(100) reads the user's telephone number, generates the certificate of telephone number, and transmits the certificate of telephone number to the data terminal portion of the user terminal portion.
Patent KR-20020058884-A (KR)
Title: A system for controlling an electronic throttle control valve in a gasoline direct injection engine
Inventor: KIM WON TAE
IPC: F02D41/02
Filed: 2000-12-30
Abstract: PURPOSE: An ETC(Electronic Throttle Control) valve control system of GDI(Gasoline Direct Injection) engine is provided to improve the fuel efficiency and the acceleration feeling. CONSTITUTION: An ETC(Electronic Throttle Control) system of GDI(Gasoline Direct Injection) engine includes a drive mode decision part(10) receiving the engine RPM and the relative value of the required engine load and deciding one drive mode among an EHS(Early Homogeneous Mode), an ESM(Early stratified Mode) and an LSM(late stratified Mode), and an electronic control part(20) outputting the control signal of the ETC(Electronic Throttle Control) valve control part(30) controlling the operation of the ETC valve(40).
Patent KR-20020057159-A (KR)
Title: Opening and closing device for discharge vents of a vehicle
Inventor: KANG HAN JUN
IPC: B60H1/34
Filed: 2000-12-30
Abstract: PURPOSE: A device for opening and closing vent outlet of vehicle is provided to prevent dust from collecting in the outlet by covering the outlet when an air conditioner or a heater is not in use. CONSTITUTION: A device includes a guide van(14) installed on an opening of a vent outlet(11) to switch flowing direction of air-conditioned air; an annular dial(16) rotatably installed on a dashboard(13) in front of the guide van; and a plurality of covers(15) placed between the guide van and the dial and moved inward and outward in radial direction by rotation of the dial to adjust opening area of the vent outlet.
Patent KR-20010067030-A (KR)
Inventor: PARK YI DONG
IPC: C02F1/40
Filed: 2000-12-21
Abstract: PURPOSE: A filter for straw sheaf is provided, which can adsorb or filter oil band and impurities floating on river by straw sheaf. The straw sheaf emits natural products of sodium oxide caused by proliferation of bacteria, fermentation and chemical reaction of straw sheaf, so that the natural products decompose and cohere pollutants and may remedy disease of fish. CONSTITUTION: The system comprises the followings: (i) a wood frame for keeping straw sheaf and preventing loss of straw sheaf; and (ii) straw sheaf stacked in the wood frame for purifying water of river by culturing microorganism with nutrient contained in straw sheaf, the straw sheaf being stacked transversely, longitudinally and slantly.
Patent KR-20010022132-A (KR)
Inventor: SCHEIBEL JEFFREY JOHN
IPC: C11D1/22
Filed: 1998-07-20
Abstract: 본 발명은 화학식 I의 알킬아릴설포네이트 계면활성제의 둘 이상의 이성체를 포함하는 알킬아릴설포네이트 계면활성제 시스템[당해 알킬아릴설포네이트 계면활성제 시스템은 L에 대한 R', R" 및 A의 결합 위치와 관련하여 둘 이상의 이성체를 포함하고, 당해 알킬아릴설포네이트 계면활성제 시스템의 60% 이상에서, A가 L의 2개의 말단 탄소 원자 중 하나에 대한 알파- 및 베타- 위치로부터 선택된 위치에서 L에 결합되어 있고, 추가로, 알킬아릴설포네이트 계면활성제 시스템은 L에 4급 탄소 원자가 존재하는 경우에 L의 4급이 아닌 탄소 원자 대 4급 탄소 원자의 중량비가 10:1 이상인 특성과 내경수 시험(Hardness Tolerance Test)으로 측정한 중량 손실율이 40% 이하인 특성 중 하나 이상(바람직하게는 둘 다)을 갖는다]을 포함하는 계면활성제 조성물에 관한 것이다. 
     화학식 I 
     
       
     
     위의 화학식 I에서, 
     L은 전체 탄소 원자수 6 내지 18의 비사이클릭 지방족 하이드로카빌이고; 
     M은 양이온 또는 양이온 혼합물이고 q는 그의 원자가이고; 
     a 및 b는 상기 조성물이 전기적으로 중성이도록 선택된 수이고; 
     R'는 H 및 C 1 내지 C 3 알킬로부터 선택되고; 
     R"는 H 및 C 1 내지 C 3 알킬로부터 선택되고; 
     R'''는 H 및 C 1 내지 C 3 알킬로부터 선택되고; 
     R'와 R" 둘 다 L의 말단이 아닌 위치에 결합되어 있고, R'와 R" 중의 하나 이상은 C 1 내지 C 3 알킬이고; 
     A는 아릴이다.
Patent KR-20010022177-A (KR)
Title: 리모트 컨트롤 디바이스
IPC: H01H9/02
Filed: 1999-05-14
Abstract: 리모트 컨트롤 디바이스(1)가 "웹(Web) TV"를 제어하기 위해 개시된다. 이 디바이스는 종래의 TV와 VCR 기능을 제어하기 위한 제 1 키패드(5)를 가진다. 일반적인 TV와 VCR 제어 명령은 제 1 방향(7a)에서 상부 LED(7)를 통해 전송된다. 상기 키패드는 커버(2)에 수용된다. 상기 커버가 개방되었을 때, 제 2 키패드가 웹 주소와 e 메일과 같은 문자 숫자식의 데이터를 입력하기 위해 이용될 수 있다. 이 쿼티(QWERTY) 키패드를 편리하고 익숙하게 사용하기 위해, 이 디바이스는 90°로 회전된다. 이 작동 모드(도 2)에서, 그 키 명령은 제 2 방향(8a)에서 측면 LED(8)를 통해 전송된다. 스위치(9)는 상기 커버가 열렸는지 또는 닫혔는지를 감지하고 해당하는 LED를 활성화시킨다.
Patent KR-20010032296-A (KR)
Title: 광학섬유를 냉각하기 위한 방법 및 장치
IPC: C03B/
Filed: 1998-11-18
Abstract: 본 발명은 광학섬유의 인발 공정중 상기 광학섬유를 냉각하기 위한 방법 및 장치에 관한 것이다. 특히, 광학섬유를 냉각하기 위한 본 방법에는 광학섬유로 냉각가스를 유동시키는 단계가 포함되며, 상기 단계에서 냉각가스의 유동 방향은 실질적으로 상기 섬유의 종축을 따라 횡단하게 된다. 냉각가스의 유동이 실질적으로 인발된 섬유의 종축을 따라 횡단한다는 것을 이용함에 의해, 상기 섬유의 냉각효율이 실질적으로 향상될 수 있다는 것이 알려져왔다. 본 발명에 따른 장치는 중공의 긴 본체를 포함하며, 상기 중공의 긴 본체는 상기 인발된 섬유가 통과하도록 내부로 긴 공간이 이루어진 적어도 한 측벽을 구비하고, 이 경우 상기 중공의 긴 본체의 적어도 한 측벽은 상기 냉각가스가 상기 중공 본체속으로 안내되도록 적어도 하나의 종축 개구부와 상기 냉각가스가 상기 중공 본체로부터 제거되도록 적어도 하나의 종축 개구부가 구비되어진다.
Patent KR-20010041145-A (KR)
Title: 자동차 클러치용 토션 댐퍼
IPC: F16F15/123
Filed: 1999-12-07
Abstract: 본 발명은 특히 자동차 클러치용 토션 댐퍼에 관한 것으로, 토션 댐퍼는 출력 샤프트와 회전 결합될 수 있는 허브(12)를 둘러싸는 환형 디스크(18)에 입력 요소(10)를 결합하는 메인 댐퍼와, 디스크와 허브 사이에 개재된 프리댐퍼(28)와, 그 위에 입력 요소(10)가 고정된 가이드 링(16)용의 중심설정 베어링을 형성하고 디스크(18)의 치형부(46)와 허브(12)의 치형부(44) 사이에 제공된 간극보다 작은 원주방향 간극을 두고 허브(12)의 치형부와 맞물리는 축방향 치형부(62)를 포함하는 베어링(56)을 구비하여 상기 치형부의 서로에 대한 충격을 차단 및 흡수한다.
Patent KR-20010042119-A (KR)
Title: 초기 충전 밸브를 구비한 연료 공급 모듈
IPC: F02M37/04
Filed: 1999-03-23
Abstract: 본 발명은 탱크로부터 자동차의 내연기관에 연료를 공급하기 위한 장치에 관한 것이다.  상기 장치는 흡입쪽에서 상기 탱크와 통해 있는 흡입 하우징과 연결되고 배출쪽에서 상기 내연기관에 연결되는 연결 공급 장치와 상기 흡입 하우징 안으로 잉여 연료를 공급하는 역류 덕트을 갖는다.  상기 흡입 하우징가 제 1 의 개방 위치와 제 2 의 폐쇄 위치 사이에서 운동할 수 있는 폐쇄 부재를 상기 바닥 영역에서 갖는다.  본 발명에 따라서 상기 폐쇄 부재는 탱크에서 특히 연료 레벨이 낮거나 또는 0일 때 상기 폐쇄 부재를 제 1 의 개방 위치에 있게 하는 가동 유니트, 바람직하게는 뜨개를 갖는다.  상기 탱크가 상기 내연기관에 충분한 연료를 공급하는 연료 공급 유니트를 위해 적어도 충분한 연료량을 담고 있을 때, 상기 가동 유니트는 제 2 의 폐쇄 위치에 상기 폐쇄 부재를 있게 한다.
Patent KR-20010052257-A (KR)
Title: 식욕과 신진대사를 조절하는 방법
IPC: A23L33/20
Filed: 1999-04-15
Abstract: 동물, 더 나아가 인체의 체중을 조절하는 방법들과 조성물들로서, 본 방법들은 동물들에게 투여하기 이전의 함량에 비하여 신경펩타이드 Y (NPY)의 합성과 분비를 조절하여 바람직하게 감소시키고, 성장호르몬 방출 인자 (GRF)의 합성과 분비를 조절하여 바람직하게 증가시키는 식이 조성물들을 투여함을 의미한다.  이러한 식이의 투여는 감퇴된 식욕과 조절된 신진대사를 유도하여 체중유실과 비만 감소를 포함한 체중조절을 강화한다.
Patent KR-20010025074-A (KR)
Title: Ｍｔｐ 활성 저하 조성물
IPC: A61K31/54
Filed: 1999-04-16
Abstract: 본 발명의 목적은 VLDL 등의 생체내 물질의 혈중에의 분비를 억제하는 데에 유용한 조성물을 제공하는 데에 있다. 
     본 발명은 시클로알리인이나 S-에틸-L-시스테인 등의 유황 함유 아미노산 또는 그것의 생리적으로 허용할 수 있는 염을 함유하는 것을 특징으로 하는 MTP 활성 저하 조성물에 관한 것이다.
Patent KR-20010053207-A (KR)
Title: 집적된 판독과 서보채널을 가진 동기식 디지털 복조기
IPC: G11B21/08
Filed: 1999-06-21
Abstract: 판독 헤드(316)가 저장 장치(100)의 매체(122)상에 각각 사용자 데이터 영역과 사보영역 위를 통과할 때 상기 판독 헤드(316)에 의해 발생된 사용자 데이터 파형(503)과 서보 파형(304,505)을 포함하는 판독 신호를 복조하기 위한 동기 디지털 복조기 및 방법에 관한 것이다.  사용자 데이터 파형(503)은 사용자 데이터 샘플 속도로 일련의 디지털 사용자 데이터값으로 변환된다.  일련의 디지털 사용자 데이터값은 사용자 데이터 검출 회로(210)에 인가된다.  서보 파형(505)은 사용자 데이터 샘플 속도와는 독립적인 서보 샘플 속도로 일련의 디지털 서보값(506)으로 변환된다.  일련의 디지털 서보값은 매체(122)상위 위치에 대해 판독 헤드(316)의 위치 에러를 나타내는 위치 에러값(142)을 생성하기 위하여 서보 파형과 동기하여 복조된다.
Patent KR-20020061396-A (KR)
Title: Optical pick up having a multiple light emitting devices
Inventor: KIM GYEONG MIN
IPC: G11B7/1353
Filed: 2001-01-16
Abstract: PURPOSE: An optical pickup having plural LEDs(Light Emitting Diodes) is provided to change an arranged location and a diffraction pattern of an SWPF(Short Wave Pass Filter), included in the optical pickup reproducing by read or recording digital data respectively recorded in a CD(Compact Disc) and DVD(Digital Versatile Disc) having mutually different formats, so as to prevent light losses. CONSTITUTION: A first light source(21) emits light having a wavelength appropriate for a DVD. A second light source(31) emits light having a wavelength appropriate for a CD. A polarized beam splitter(20) selectively transmits or reflects at an angle of 90 degrees light respectively emitted from the first and second light sources. A collimator lens(11) converts the transmitted or reflected light into parallel light. A reflective mirror(12) reflects the parallel light at an angle of 90 degrees in a disk direction. An objective lens(15) having 0.6 aperture number connects the reflected light with a recording surface of the CD or DVD for focusing. And an SWPF(130) secures an aperture number appropriate for the CD, between the second light source and the polarized beam splitter(20).
Patent KR-20020062537-A (KR)
Inventor: WON IN HO
IPC: C11D13/18
Filed: 2001-01-22
Abstract: PURPOSE: Provided is hot and cold mint soap, which gives clear and fresh feelings and promotes the blood circulation actively and prevent aging and has an enough hydration for the skin. CONSTITUTION: The cold mint soap is produced by a process comprising the steps of: injecting 14.5%(based on the total weight) of sodium lolate, 24.5% of sodium stearate, 10% of sodium olate, 20% of glycerin, 4% of T.E.A stearate, 6% of C.D.E, 15% of tempering, 0.5% of vitamin A, 1% of vitamin E, 15% of a functional hydrating-agent, 2% of salts, 3% of a natural herb extract, 1% of a rosin extract, 1.5% of a cryptomeria extract, more than 5% of D,L-mint extract, 0.002% of diphenhydramine, 0.03% of camphor, 3% of bioceramic powder, and perfume into a bath blender; adding water containing sodium bicarbonate and salt, and mixing at 85deg.C or higher for 30 minutes or more; adding sodium bicarbonate to adjust pH and mixing; cooling and extrusion-molding and passing through a blast-drier and packing. And the hot mint soap is produced by adding more than 2% of a hot pepper tincture, more than 1% of a ginger tincture, and more than 1% of Zanthoxylum Schinifolium tincture to the composition of the cold mint soap.
Patent KR-20020064076-A (KR)
Title: Hermetic rotary compressor
Inventor: CHO CHANG YEONG
IPC: F04B39/00
Filed: 2001-01-31
Abstract: PURPOSE: A hermetic type rotary compressor is provided to reduce time for coupling and to suppress abnormal abrasion of parts and generation of noise. CONSTITUTION: A compressor includes a casing(10) having a hermetic accommodating space formed therein; an electric motor part(20) including a stator(21) fixedly placed in the casing, a rotor(23) accommodated in the stator to rotate and a rotary axis(25) integrally joined to a shaft center of the rotor in vertical direction of the casing to rotate and having an eccentric part formed on one side thereof; a cylinder block(31) having a cylinder part(32a) with one side open in axial direction of the rotary axis and an axis supporting part(32b) formed on an opposite side of the opening of the cylinder part and accommodating and supporting the rotary axis to rotate, both of which are formed integrally with each other; a bearing member(51) integrally joined to the cylinder block to cover the opening, forming a compression space for refrigerant together with the cylinder block and having an axis supporting part(52b) formed on a central area thereof to accommodate and support the rotary axis to rotate; and a roller(30) joined integrally with the eccentric part of the rotary axis to rotate and placed in the compression space to contact with an inner circumferential surface of the cylinder part and rotate.
Patent KR-20020064506-A (KR)
Title: Gain equalizing optical-fiber for attenuator
Inventor: HAN WON TAEK
IPC: G02B6/26
Filed: 2001-02-02
Abstract: PURPOSE: An optical fiber for an optical attenuator having a flat attenuation gain is provided, which has a flat attenuation characteristics at an optical signal band by doping a pair of metal ions having light absorption yields of a negative slope and a positive slope into a core of the optical fiber. CONSTITUTION: An optical fiber comprises a cladding layer(12) and a core layer(13). At least more than one component among the first metal ions of Fe, Cr and Mn, whose light absorption characteristics is decreased in a fixed wavelength band, and the second metal ion of a Cobalt(Co) component, whose light absorption characteristics is increased in the fixed wavelength band, are co-doped to the core layer. The second metal ion is formed by mixing a Ni component to the Co component. And an Al component also is co-doped to the core layer.
Patent KR-20020065662-A (KR)
Title: Circulator using a non-radiative dielectric waveguide
Inventor: PARK MYEONG RYEOL
IPC: H01P1/39
Filed: 2001-02-07
Abstract: PURPOSE: A circulator using a non-radiating dielectric waveguide is provided to ensure impedance matching between a dielectric resonator and a dielectric line, process with ease, and reduce manufacture cost. CONSTITUTION: A circulator using a non-radiating dielectric waveguide comprises a circuit(20) using a dielectric line between an upper conductor plate(10a) and a lower conductor plate(10b). Three pairs of guiding grooves(26a,26b,26c) are extended from the center of the bottom of the lower conductor(10a) to the edges of the lower conductor(10a) radially with 120° interval. The guide grooves pairs(26a,26b,26c) form guide rails(28a,28b,28c), respectively. A groove(38) is formed at the boundary of the lower conductor(10a) for breaking a leakage wave. The upper and the lower plates(10a,10b) are polygonal or circular. After mounting the circulator circuit(20), the upper and the lower plates(10a,10b) are coupled by many screws(40a-40f). The circulator circuit(20) includes a dielectric resonating unit(24) and three ports(P1,P2,P3).
Patent KR-20020066270-A (KR)
Title: Construction panal and it's manufacture method
Inventor: KANG DONG WON
IPC: E04C2/26
Filed: 2001-02-09
Abstract: PURPOSE: An architectural panel is provided to reduce the weight of panel, to prevent a fire and poisonous gas by fire-resistant treatment and to lower the manufacturing costs by reducing the amount of inorganic coating boards used. CONSTITUTION: The architectural panel(20) comprises: an inorganic coating board(2) adhered to both sides of mineral wool(1) cut longitudinally; an adhesive piece(3) formed on both sides of the inorganic coating board(2) and bent to cross each other and adhered to the upper, lower sides of the mineral wool(1); and boards(21,22) adhered to the upper, lower parts of the adhesive piece(3) with inorganic adhesives.