baber/WOPTO huggingface dataset:
Patent KR-20040047230-A (KR)
Title: A water hardness sensing apparatus of water for washing machine
Inventor: SONG YEONG HAN
IPC: D06F39/08
Filed: 2002-11-29
Abstract: PURPOSE: A hardness measuring apparatus of a washing machine is provided to prevent washing water from leaking from a gap between an electrode sensor and a sensor hole with an epoxy molding and to reduce error of conductivity by fixing the electrode sensor to a sensor housing. CONSTITUTION: A hardness measuring apparatus of a washing machine includes a sensor housing(56), an electrode sensor(60) and a sealing member(62). The sensor housing is installed to a side of a tub to contact washing water of the tub. The electrode sensor is arranged inside the sensor housing. An end of the electrode sensor penetrates through a side of the sensor housing to sense conductivity of washing water. The sealing member fills the inside of the sensor housing to prevent washing water from leaking form the side of the sensor housing as epoxy. Thereby, error of conductivity generated by shaking the electrode sensor is reduced by fixing the electrode sensor to the sensor housing.
Patent KR-20040048743-A (KR)
Title: Metal plating apparatus of semiconductor
Inventor: NA SEON JU
IPC: H01L21/50
Filed: 2002-12-04
Abstract: PURPOSE: A semiconductor plating apparatus is provided to precisely detecting the fixing state between a metal plate and a hanger by using a proximity sensor and a gear type screw thread. CONSTITUTION: A semiconductor plating apparatus is provided with a plurality of hangers(202) for fixing a metal plate(104) and a transfer part(200) for transferring the hangers by carrying out a predetermined process. The semiconductor plating apparatus further includes a proximity sensor(206) for detecting whether the metal plate contacts the proximity sensor, or not. Preferably, the proximity sensor falls down, when the metal plate contacts the proximity sensor. Preferably, the semiconductor plating apparatus further includes a detecting sensor(208) for detecting the position shift of the proximity sensor. Preferably, the height of the proximity sensor is controlled by using a gear type screw thread.
Patent KR-20040051751-A (KR)
Title: Method and apparatus for controlling brightness in LCD monitor
Inventor: CHOI CHANG IK
IPC: G02F1/133
Filed: 2002-12-11
Abstract: PURPOSE: A luminance control method and apparatus in an LCD(Liquid Crystal Display) monitor are provided to remove a noise generated from a specific region of a switching frequency of a back light of the LCD monitor. CONSTITUTION: An apparatus of controlling the luminance of an LCD monitor includes a video processor(110), a panel driver(120), a back light controller(150), and a micro-controller(160). The video processor controls the gain of a video signal in response to a luminance level control value. The panel driver generates a driving signal corresponding to the luminance of video data controlled by the video processor. The back light controller varies a voltage and current in response to the luminance level control value to control the luminance of a back light(130). The micro-controller supplies a selectively input luminance level control value to the back light controller when the luminance level control value is lower than a predetermined reference value and supplies the luminance level control value to the video processor when the luminance level control value is higher than the reference value.
Patent KR-20040053693-A (KR)
Title: A feed guide structure for disk drive
Inventor: KIM TAE SEONG
IPC: G11B7/085
Filed: 2002-12-17
Abstract: PURPOSE: A feed guide structure of a disc drive is provided to transmit a pickup transfer power from a lead screw to a pickup. CONSTITUTION: The structure comprises a body(32), a rack plate(34), and connection necks(38, 38'). The body(32) is installed at a pickup. The rack plate(34), installed at the body(32), forms racks for receiving power to feed the pickup. The connection necks(38, 38'), installed on both sides of the rack plate(34), connect the body(32) to the rack plate(34). The connection necks(38, 38') face a contrary side according to a tooth formation direction of a lead screw geared with the racks so that it prevents the rack plate from being deformed by an external shock.
Patent KR-20040055532-A (KR)
Title: Dredging bucker
Inventor: LEE KEUN HO
IPC: E02F3/88
Filed: 2002-12-21
Abstract: PURPOSE: A dredging bucket is provided to execute a dredging work easily and to heighten the durability of a sewer pipe. CONSTITUTION: The dredging bucket(1) comprises a cylindrical body(2) having a circular section, a opening/closing unit(3) attached to open and close one side or both sides of the cylindrical body(2), a sliding plate(4) attaching to be slid along both sides of the cylindrical body(2), and a rope connecting hook(5) connected to both ends of the cylindrical body(2).
Patent KR-20040056220-A (KR)
Title: Resistance-heated boat and manufacturing method thereof
Inventor: JUNG JAE IN
IPC: C23C14/24
Filed: 2002-12-23
Abstract: PURPOSE: A resistance heating boat is provided which is capable of stably and continuously evaporating metal such as aluminum on the graphite by coating a specific compound on the processed boated shaped graphite after processing graphite in a boat shape, and a manufacturing method of the resistance heating boat is provided. CONSTITUTION: In a resistance heating boat for vacuum evaporating a metal evaporating material on a substrate by resistance heating method, the resistance heating boat comprises a graphite layer(31) processed in a boat shape; and a protection layer(30) formed on the surface of the graphite layer so that the graphite layer is not reacted with the metal evaporating material, wherein the protection layer comprises aluminum rich layer(32) and nitrogen compound layer(33), wherein the protection layer further comprises a boron compound layer(34) distributed in a lump crystal shape, and wherein thickness of the protection layer is 20 to 200 μm. The manufacturing method of a resistance heating boat comprises a step of processing a graphite layer(31) in a boat shape on the surface of which an evaporation part hole is formed so that a material to be evaporated is positioned in the evaporation part hole; a step of coating nitrogen compound on the surface of the graphite layer; and a step of forming a protection layer(30) on the surface of the graphite layer so that the graphite layer is not reacted with the metal evaporating material by reacting the nitrogen compound with aluminum through heat treatment after positioning aluminum in the evaporation part hole of the graphite layer.
Patent KR-20040056906-A (KR)
Title: Dual ATM traffic control board expanding device of the ATM system and controlling method therefore
Inventor: LEE CHANG SIK
IPC: H04L12/28
Filed: 2002-12-24
Abstract: PURPOSE: An apparatus for extending a dual interface board in an ATM system and a method for controlling the same are provided to improve the switching extensibility of an ATM switch by extending the switching port resources of the ATM switch in large quantities. CONSTITUTION: An ATM transmission system(1) consists of a control board(2), an egress interface board(4), an ATM switch(5), dual interface boards(6), and subscriber boards(8). The control board(2) controls the connection setup or maintenance/management of the ATM transmission system(1). The egress interface board(4) interfaces a data signal, routed from an external transmission equipment(3), to the ATM transmission system(1). The ATM switch(5) analyzes the routing information of the data signal, interfaced by the ATM transmission system(1), and outputs it through a switching port according to a switching signal of the control board(2). Each of the dual interface boards(6) is respectively connected to each of the switching ports of the ATM switch(5) in a dual structure of a master and a slave. The subscriber boards(8) process a large quantity of ATM data transmitted from external subscriber systems(7).
Patent KR-20020063155-A (KR)
IPC: H01L21/673
Filed: 2000-07-06
Abstract: 본 발명은 도어 수용 프레임과 이에 적절한 크기의 도어를 가진 웨이퍼 용기에 관한 것이다. 도어(94)는 도어로부터 래칭 부를 리프팅, 하강 및 수축하도록 연장되어 있으며 또한 도어 프레임의 래치 리셉터클(150)안 및 밖으로 연장한 래칭 링케이지(250, 252)를 포함한다. 각각의 래칭 메카니즘은 도어의 정면에 노출된 접속된 핸들(170, 172)을 갖는 슬라이딩판(210)을 활용한다. 이 슬라이딩판은 래칭 링케이지와 협동하는 리프팅 링케이지(220, 222)를 갖는다. 핸들의 이동은 래칭부를 래칭 리셉터클로 연장한다. 중첩한 링케이지상의 램프된 면(226)과 팔로워 면(277)에 의해, 래칭부분은 제 1방향에 직교하는 방향으로 이동하여 도어를 안쪽으로 밀어 도어를 용기에 시일한다. 슬라이딩판은 피니온(290)과 맞물린 랙부(224)을 포함한다. 피니온은 래치 키(300)에 의해 도어 정면부로부터 액세스 가능하다.
Patent KR-20020026546-A (KR)
IPC: H01M2/10
Filed: 2000-07-07
Abstract: 일체형 배터리 및 재충전기가 설명된다. 배터리는 배터리 하우징, 배터리 단자들 및 플러그 소켓에의 배치를 위하여 그리고 AC 전원에 연결될 때 배터리의 재충전을 수행하도록 동작가능한 플러그 핀들을 포함한다. 배터리 하우징은 일반적으로 배터리 동력 사용 장치의 꼭 맞는 공동(33)에 수납되도록 설계된다. 플러그 핀들이 돌출된 하우징의 부분은 돌출된 플러그 핀들이 상기 부분과 공동 사이에 제공된 공간에서 완전히 신장되도록 허용하기 위하여 사용중 공동의 벽들로부터 충분히 이격되도록 설계된다. 바람직하기로는, 핀들이 돌출되는 면은 3면 배터리 하우징의 제3면을 형성하기 위하여 인접면들에 대해 실질적으로 45°로 신장된다. 또한 배터리 동력 사용 장치에 배치된 배터리를 사용하고 재충전하는 방법이 설명된다.
Patent KR-20020038711-A (KR)
IPC: H01J11/36
Filed: 1999-10-10
Abstract: 본 발명은 플라즈마 디스플레이 패널에 관한 것으로, 전기판, 후기판 및 전기판과 후기판 사이에 끼워 설치되어 전기판 및 후기판을 지지하는 메시 배열을 포함한 전도 메시판을 포함하여 구성된 플라즈마 디스플레이 패널로서, 상기 메시판의 메시 및 후기판의 어드레싱 전극 및 전기판상의 스캐닝전극이 본 디스플레이 패널의 방전셀을 형성하며, 또한 상기 메시판은 그 표면에서 서로 인접한 메시 사이에 가스 유도홈이 설치되어 있는 플라즈마 디스플레이 패널을 제공한다.  본 발명은 현재의 플라즈마 디스플레이에 비하여 향상된 분해능과 발광도 및 광투과율 및 보다 낮은 작동전압을 갖고 있는 동시에 생산성이 높고 제조 코스트가 낮은 효과를 가지고 있다.
Patent KR-20020020816-A (KR)
IPC: B24D3/28
Filed: 2000-08-10
Abstract: 본 발명은 투명한 영역(12)과 불투명한 인접 영역(14)을 갖는 일체식 성형품으로서 형성된 연마 패드(10)에 관한 것이다.  당해 제품(10)은 적어도 초기에는 균일한 조성을 갖는 유동가능한 중합체성 물질을 고화시킴으로써 형성된다.  유동가능한 중합체성 물질은 성형 공정 동안 가공처리되어 투명한 영역(12) 및 인접한 불투명한 영역(14)을 제공한다.  연마 패드(10) 제조용으로 적합한 중합체성 물질의 종류에는 단일 열가소성 물질, 열가소성 물질들로 이루어진 블렌드 및 반응성 열경화성 중합체가 포함된다.
Patent KR-20030032907-A (KR)
IPC: C07H19/16
Filed: 2000-12-01
Abstract: 본 발명은 N 6 헤테로사이클릭 5' 변형된 아데노신 유도체에 관한 것으로서, 이것은 아데노신 A 1 수용체의 부분적이거나 완전한 작용제이어서, 심장 활동을 조절하고, 지방세포 기능을 조절하고, 중추 신경계 장애를 치료하고, 당뇨병 및 포유동물, 특히 사람의 비만을 치료하기에 유용하다.
Patent KR-20020065913-A (KR)
IPC: C08G59/12
Filed: 2000-12-21
Abstract: 본 발명은, 수평균 분자량 1,000∼30,000이고 또한 산가 5∼200 mgKOH/g인  카르복실기 함유 폴리에스테르 수지(a) 및 수평균 분자량 1,200이하의 1,2-에폭시기 함유 저분자량 에폭시 화합물(b)을, 에스테르화 반응시켜 수득하는 에폭시 변성 폴리에스테르 수지(A)와, 카르복실기 함유 아크릴 수지(c)를 반응시켜 수득하는 카르복실기 함유 아크릴 변성 폴리에스테르 수지(B)가 중화되고, 수성 매체중에 분산되어 이루어지는 것을 특징으로 하는 수성 피복 조성물을 제공하는 것이다.
Patent KR-20020072297-A (KR)
Title: 연료 분사 밸브
IPC: F02M61/18
Filed: 2001-11-30
Abstract: 내연 기관의 연료 분사 시스템용 연료 분사 밸브(1)는 밸브 니들(3), 상기 밸브 니들과 상호 작용 연결된 밸브 폐쇄 바디(4) 및 밀봉 시트의 흐름 방향 하류측으로 다수의 분사구(7)를 포함하며, 상기 밸브 폐쇄 바디는 밸브 시트 바디(5)에 배열된 밸브 시트면(6)과 밀봉 시트로서 상호 작용한다.  적어도 하나의 분사구(7)로부터의 연료의 분사는 적어도 임시로 차단될 수 있으며 각각 하나의 분사구(7)로부터의 연료 분사는, 각각 하나의 국부적 가열 소자(44)에 의한 연료의 국부적 증발을 통해 차단되고, 상기 가열 소자는 각각의 분사구(7)의 흐름 방향 상류측으로, 유동 경로를 제한하는 면(43)에 배열된다.
Patent KR-20020084136-A (KR)
Title: 소마토트로핀의 지속적인 방출을 위한 비수성 주사제제들
IPC: A61K47/26
Filed: 2001-02-20
Abstract: 본 발명은 동물에 비경구투여하므로써 생물학적으로 활성인 폴리펩티드의 지속적인 방출과 향상된 생체이용도를 가능하게 하는 조성물을 제공한다. 좀 더 상세하게는, 지속적인 방출을 위해 조제된 생물학적으로 활성인 소마토트로핀을 포함하는 조성물, 이 조성물의 제조방법, 및 이것을 사용하는 방법에 관한 것이다. 이 조성물들은 소마토트로핀, 생체이용도 향상성분(BEC), 실질적으로 비수성인 소수성 부형제를 포함한다. BEC는 (ⅰ) 아미노산 또는 히스티딘-HCl과 같은 아미노산 유도체; (ⅱ) 히스티딘 히드록사메이트 또는 수베로히드록사민산과 같은 히드록사메이트 유도체;(ⅲ) 트리할로즈 또는 트리할로즈 옥타아세테이트와 같은 비환원성 탄수화물; (ⅳ) 일염기성 인산나트륨과 이염기성 인산나트륨의 혼합물과 같은 옥소산염; 또는 (ⅴ) 상기한 종류 (ⅰ)∼(ⅳ)중 둘 또는 그 이상의 화합물의 혼합물을 포함한다.
Patent KR-20020082901-A (KR)
Title: 띠강판 권취 장치
IPC: B21C47/00
Filed: 1998-11-26
Abstract: 저비용으로 고속 권취가 가능한 띠강판 권취 장치를 제공하는 것을 목적으로 하고, 수직면내에 회전 구동 가능하게 설치된 원형 지지 프레임(6)상에 복수개의 개별 구동되는 맨드릴(7)을 포함한 캐루셀형 권취기(5)와, 해당 권취기(5)의 권취 개시 위치의 맨드릴 주위 위치와 후퇴 위치 사이에서 진퇴 이동 가능하게 설치한 복수개의 유닛 롤(22a 내지 22d)을 지지하는 롤식 권취 장치(10)를 구비하였다.
Patent KR-20030019428-A (KR)
IPC: G06Q40/08
Filed: 2001-06-14
Abstract: 보험료를 적절히 설정하는 보험 내용 조정 시스템은 보험 내용 조정 방법, 장치, 상태 데이터 취득용 단말 장치, 어드바이스 응답용 단말 장치, 어드바이스 장치, 보험 내용 조정 프로그램, 상태 데이터 취득 프로그램, 어드바이스 응답 프로그램, 어드바이스 프로그램, 이들의 프로그램을 기록한 컴퓨터 판독 가능 기록 매체가 포함된다. 보험 대상의 상태를 취득한 상태 데이터에 근거하여 결정되는 보험 내용이 그 상태 데이터의 재취득에 대한 보험 계약자의 의욕 정도나, 보험 대상의 위험을 저감하기 위한 보험 계약자측의 의욕 정도를 이용하여 조정된다. 이와 같이 해서, 장래적으로 위험이 작게 되는 보험 대상에 대해 보험료가 적절히 설정된다.
Patent KR-20030015302-A (KR)
IPC: B23K26/04
Filed: 2001-07-11
Abstract: Q-스위칭, 다이오드-펌핑, 고체-상태(DPSS: Diode-Pumped, Solid-State) 레이저(54)는 링크 처리 및 목표 정렬 둘 모두를 위해 UV 광(74)을 생성하기 위해 비선형 크리스털(72)을 통한 고조파 생성을 사용한다. IC 퓨즈를 절단하기 위해 뛰어난 빔 품질로 집속된 스폿 크기를 생성하기 위해, 비선형 크리스털(72)의 유형 및 기하학적 모양이 선택되고, 그 온도는 정밀하게 제어된다. 레이저 출력(56)의 일부는 제 2 목표 정렬 시스템(50)에서 사용될 수 있다. 이미지 광학기기 모듈(52)은 제 2 및 제 1 빔 중 어느 하나 또는 둘 모두의 형태의 품질을 더 향상시키기 위해 사용될 수 있다. 각 빔은 입사 및 반사된 빔을 측정하는 검출 모듈(100)을 통과한다. 두 빔은 빔의 조정 및 정렬과 후속적인 링크 처리를 용이하게 하기 위해 공통 결합기를 통과한다.
Patent KR-20040063480-A (KR)
Title: Anchor bolt
Inventor: MIN BYUNG EE
IPC: F16B13/00
Filed: 2003-01-07
Abstract: PURPOSE: An anchor bolt is provided to reinforce of a fastening force of the anchor bolt by fastening the anchor bolt using an L-wrench after assembling the anchor bolt into a bolt assembling hole. CONSTITUTION: An anchor bolt includes a screw body section(43) and a head section(42) formed at one end of the screw body section(43). An assembling hole(63) is formed at a center of the head section(42). An assembling surface(45) and an angular surface(46) are formed in the assembling hole(63), thereby forming a hexagonal assembling hole. A rib(65) is formed at both sides of an L-wrench corresponding to the angular surface(46) of the head section(42). Assembling slots are formed in each angular section corresponding to the depth of the assembling hole(63).
Patent KR-20040065609-A (KR)
Inventor: ZHANG GUO XUAN
IPC: G06F15/00
Filed: 2003-01-15
Abstract: PURPOSE: A system and a method for preventing illegal duplication of software by monitoring a software ID in real-time on the online are provided to prevent the illegal duplication by stopping usage of a product if a number of customer terminals using the same ID is over a duplication frequency allowed to the ID. CONSTITUTION: The system comprises a monitoring server(30), the customer terminals(10a-10n) connected to the monitoring server through wired/wireless network(20), and a software maker(40) managing the monitoring server. The customer terminals are equipped with the software product developed by the software maker and the software product includes a control module. The control module communicates with the monitoring server and performs a control function depending on a signal of the monitoring server. The monitoring server comprises a monitoring tool(32) monitoring the software product in real-time on the online, an analyzing tool(34) judging the illegally duplicated software product, and a managing tool(36) transmitting a usage stopping signal to the control module in the customer terminal depending on an analysis result.
Patent KR-20040069000-A (KR)
Inventor: KADONO YUZURU
IPC: B23B5/16
Filed: 2003-01-20
Abstract: PURPOSE: A device for processing the edge of a steel pipe is provided to avoid the defective processing by sufficiently restraining a steel pipe with a clamp and to promptly restrain the steel pipe despite the size change of the steel pipe. CONSTITUTION: A steel pipe clamping device has a V-shaped clamping piece(18) attached with a vibrating mechanism moving forward and backward toward a steel pipe(1) in four directions at two parts. The V-shaped clamping piece moves forward and backward by a positive-stroke hydraulic cylinder(20). At least one V-shaped clamping piece is moved forward and backward by a single-stroke hydraulic cylinder(21) installed serial to the positive-stroke hydraulic cylinder.
Patent KR-20040066514-A (KR)
Inventor: KIM JONG IN
IPC: H04B1/38
Filed: 2003-01-20
Abstract: PURPOSE: A mobile radio equipment having a handle is provided to conveniently use a folder type mobile radio equipment when the folder type mobile radio equipment is used as an optical photographing device. CONSTITUTION: A folder type mobile radio equipment(10) is formed of a main body(20), a sub body(30) mounting a display device, and an optical photographing element. An extra rotary plate(40) is installed on a rear surface of the main body(20) to be rotative centering on a predetermined rotary shaft(41). In the case of photographing an object with the optical photographing element, the rotary plate(40) is rotated, being protruded to one side of the folder type mobile radio equipment(10) to function as a handle.
Patent KR-20040067286-A (KR)
Title: Projection lens system for rear type projection display
Inventor: YEO SANG OK
IPC: H04N5/74
Filed: 2003-01-22
Abstract: PURPOSE: A projection lens system for a rear type projection display is provided to configure the first lens group and the second lens group suitable to a rear type projection display, and to optimize a focus and an air interval, thereby reducing a depth and making a slim projection display. CONSTITUTION: A projector(22) consists of an image supply source and a projection lens system. The projection lens system comprises as follows. The second lens group(33) reflects an image supplied from the image supply source through a mirror(31), and transmits the reflected image to the first lens group. The first lens group expands an image incident by the mirror(31) through a mirror of a projection display on a screen, and projects the expanded image on the screen.
Patent KR-20040069900-A (KR)
Inventor: PARK DONG HUN
IPC: H01L21/027
Filed: 2003-01-30
Abstract: PURPOSE: An auto alignment method is provided to classify exactly defects in a manual review and to reduce remarkably manpower and time by performing an ADC(Auto Defect Classification) and an ADD(Auto Defect Detection) for a predetermined layer using a mirror image. CONSTITUTION: A microscope(30) capable of transmitting light source(20) is loaded in a review station(10). A mask pattern generating part(31) is installed on the microscope. A mirror image(41) and an auto align box are formed through a mask pattern. A wafer(50) is aligned by using a unique pattern in an ADC(Auto Defect Classification) and an ADD(Auto Defect Detection).
Patent KR-20040075414-A (KR)
Inventor: CHAE SU GIL
IPC: H04M1/60
Filed: 2003-02-21
Abstract: PURPOSE: A system and method for changing a ring signal of a phone are provided to allow a user to select a desired ring signal upon receiving various ring signals through the Internet or a PSTN(Public Switched Telephone Network) and change a ring signal of a phone. CONSTITUTION: A ring signal providing server(35) provides plural ring data through a communication network. A user computer(30) connected to the communication network receives the ring data from the ring signal providing server(35). A ring signal changing adapter(20) connected between a phone line and a user phone(10), receives the ring data from the user computer(30), and outputs a pre-set ring signal when a destination signal is inputted from the phone line.
Patent KR-20040076460-A (KR)
Inventor: CHOI SANG EON
IPC: H01L43/02
Filed: 2003-02-25
Abstract: PURPOSE: A method for detecting a fine magnetic detection device is provided to simplify a fabrication process by omitting a plating frame removal process for removing a seed layer. CONSTITUTION: A seed layer(102) is formed on a semiconductor substrate(100). The seed layer is partially removed to insulate plural coils for forming lower coils and connect the coils to outer circumferences of the lower coils. A photoresist is coated on the semiconductor substrate. A predetermined pattern corresponding to the lower coils is formed on an upper surface of the semiconductor by performing an exposure process and a development process. A metal layer is formed on the semiconductor substrate in order to fill up a depressed part of the predetermined pattern. A soft magnetic core(122) and an upper coil(136) are formed on the semiconductor substrate. A cutting process is performed to separate a part of the semiconductor substrate corresponding to the outer circumferences of the lower coil.
Patent KR-20040077091-A (KR)
Inventor: LEE JIN WOO
IPC: G08C19/00
Filed: 2003-02-27
Abstract: PURPOSE: An image processing method for telemetry system is provided to improve the image processing speed and recognize correctly numbers by processing an image of a number display of a meter. CONSTITUTION: An image capture process is performed to capture a number display part of a meter as a gray scale image. The gray scale image of the number display part of the meter is converted to a binary image. A number part is set up as a search region. Each outline of models is tracked within the search region of the binary image. The tracking data are stored. A desired model is selected by removing the noise from the search region of the binary image. A model recognition process is performed to compare spectrums of the selected model with the practical spectrums of the corresponding model and determining a high correlation number as a model number.
Patent KR-20040078941-A (KR)
Inventor: JANG SA JEONG
IPC: C07F9/38
Filed: 2003-03-05
Abstract: PURPOSE: A process for preparing 4-amino-1-hydroxybutylidene-1,1-bisphosphonic acid or salts thereof is provided, thereby stably and reproducibly preparing the compound under the mild condition by using nontoxic polyphosphate as a solvent. CONSTITUTION: The process for preparing 4-amino-1-hydroxybutylidene- 1,1-bisphosphonic acid or salts thereof comprises the steps of: bisphosphonication of 4-aminobutylic acid by using a polyphosphate solvent, phosphite and phosphorous trichloride at 70 to 120 deg. C in the air; adding water into the bisphosphonicated compound to hydrolysis; and adding alcohol into the hydrolyzed compound to solidify it.
Patent KR-20040079244-A (KR)
Inventor: KIM YEONG SEOK
IPC: B60J11/00
Filed: 2003-03-07
Abstract: PURPOSE: A light shielding apparatus for a windshield glass is provided to prevent lowering of appearance and durability by installing the light shielding apparatus in a frame, and to restrict a curtain from being displaced from a roll and twisted by mounting a displacement restricting member. CONSTITUTION: A light shielding apparatus for a windshield glass comprises a rectangular curtain(100); a curtain reel unit embedded in a frame(3) formed in the corner of the windshield glass; a curtain input and output hole(300) formed in the frame; a grip part(400) mounted in the corner of the curtain; and a support member(500) supporting the curtain covering the windshield glass on the frame. The curtain reel unit comprises a reel winding the curtain, a spring mounted to the reel, and support brackets rotating and supporting the reel.
Patent KR-20040080174-A (KR)
Inventor: HAN SANG NAM
IPC: B66C3/04
Filed: 2003-03-11
Abstract: PURPOSE: A grapple of crane grab having magnet is provided to increase efficiency and endurance by using detachable magnet with a spring. CONSTITUTION: A grapple of crane grab having magnet comprises lots of tongs arranged in a radial shape at a supporting plate(2); a cylinder(6) elevating the tongs; a magnet(7) in the lower part of the supporting plate(2); a number of guide pins(8) protruded from the supporting plate(2); springs(9) in the guide pins(8); locking pins(10) connected with protruded part of the guide pins.
Patent KR-20030076931-A (KR)
Inventor: JEONG TAE SEOP
IPC: C02F1/72
Filed: 2003-03-11
Abstract: PURPOSE: Provided is a wastewater treatment method using advanced oxidation process (AOP) being capable of continuously oxidizing wastewater by installing a light source such as UV lamp radiating UV ray and photocatalyst generating OH radicals with great oxidation ability when they comes into contact with UV ray in an oxidation tank. CONSTITUTION: The method comprises the steps of oxidizing wastewater in a first oxidation tank(1) having photocatalyst, a UV light source(3) and activating gas including ozone (O3) therein, oxidizing effluent of the first oxidation tank(2) in a second oxidation tank having photocatalyst, UV light source(3), adsorbent, and activating gas including ozone (O3) therein, and discharging the treated water of the second oxidation tank(2), wherein the photocatalyst is TiO2 or CuO, and wherein the adsorbent is activated carbon, activated alumina or zeolite.