baber/WOPTO huggingface dataset:
Patent KR-20000007371-A (KR)
Title: Plasma display panel
Inventor: KIM WON TAE
IPC: H01J9/22
Filed: 1998-07-02
Abstract: PURPOSE: The plasma display panel is fabricated to satisfy the long life time, the low voltage operation and the characteristics of luminescence luminance and color purity by controlling the mixing ratio of a discharge gas. CONSTITUTION: The plasma display panel maximizes the reliability by forming a discharge gas built-in space by sealing the surroundings of a first and a second substrate parallel mutually, and by comprising an electrode for discharging the discharge gas on the inner surface of at least one substrate of the first and the second substrate and a fluorescent layer excited by ultraviolet rays generated by the discharge of the discharge gas. The discharge gas charge in the discharge gas built-in space is a mixture of 3 gas of Xe, He and Ne and Ar gas corresponding to 0.2 - 0.7 percent of the overall mass.
Patent KR-20000008860-A (KR)
Title: Method for coloring non-ferrous metal using titanium deposition
Inventor: LEE JEE WHAN
IPC: C23C14/16
Filed: 1998-07-16
Abstract: PURPOSE: A method for coloring the surface of non-ferrous metal in various colors and, especially, for deposition coating the surface of non-ferrous metal having complex profile with titanium and coloring by anodic oxidation is provided which results in excellent corrosion resistance, various colors and brightness. CONSTITUTION: A method for coloring non-ferrous metal by titanium deposition comprises the steps of:polishing the surface of the non-ferrous metal; coating the polished surface of the non-ferrous metal with copper; coating the upper surface of the copper-coating layer with nickel-palladium; ion-depositing titanium on the nickel-palladium coating layer; and coloring the surface of the titanium deposition layer by the anodic oxidation method.
Patent KR-20000009022-A (KR)
Title: Computer synthetic information system of public residence
Inventor: CHO YOUNG SEON
IPC: H04L12/28
Filed: 1998-07-21
Abstract: PURPOSE: A computer synthetic information system of a public residence constructs a computer public communication network by using hubs and routers. CONSTITUTION: A computer synthetic information system of a public residence includes a server computer(9) for managing the information of a public residence, and a monitoring camera(2) connected to the server computer. The system is connected to a computer(4,5,6,7) of each house through access control device such as a hub(8). The hub(8) is connected to an internet(12) through a router(10) and DSU(11). The system is connected to a business section computer(3) in order to perform the ordering of the computers(4,5,6,7). Thereby, a home life becomes very convenient.
Patent KR-20000010280-A (KR)
Title: Air bag device for vehicle
Inventor: HA TAE SUNG
IPC: B60R21/203
Filed: 1998-07-31
Abstract: PURPOSE: An air bag device for a vehicle is provided to prevent an air bag from excessively expanding to the passenger side when initially expanding the air bag caused by a car crash. CONSTITUTION: The air bag device comprises:a cover(130) and a floor board making an external appearance; an air bag installed to be folded inside the cover; a gas generator(110) installed in the opening of the air bag and expanding the air bag by generating gas when crashing into other cars; an air bag expanding blocking plate(200) blocking not to expand to the front of the air bag when initially expanding the air bag; a combining hole(200a) formed in one side of the blocking plate; and a hanging ring(210) that is inserted into the combining hole, installed on the floor board.
Patent KR-20000013231-A (KR)
Title: Fibrous phase immersing catalyst mat manufacturing method
Inventor: OH SUK JAE
IPC: B01J21/08
Filed: 1998-08-06
Abstract: PURPOSE: A fibrous phase immersing catalyst mat is provided to have an excellent catalyst activation, stability and burning efficiency and to reduce the cost. CONSTITUTION: The fibrous immersing catalyst mat manufacturing method has the steps of: impregnating platinum sodium that is a main catalyst into a silica or alumina unwoven mat carrier less than 0.0001% by melting in ion exchanging water; impregnating Cr2O3 and CoO into the carrier by 1:2 of ratio; calcining the impregnated thing in a dry and anoxic atmosphere, to heighten the stability of a catalyst; and immersing Ce into the silica or alumina unwoven mat, to lower the initial temperature of the catalyst mat. Using this catalyst mat, hydrocarbon fuel saving typed heater can be manufactured.
Patent KR-19990029528-A (KR)
Title: 도파민 아고니스트 치료법과 관련된 운동 장해의 치료를 위한 ａｍｐａ 수용체 길항제 함유 조성물
IPC: A61K45/00
Filed: 1998-09-04
Abstract: 본 발명은 도파민 아고니스트 치료법과 관련된 운동 장해 치료에 유효한 양의 AMPA 수용체 길항제 및 제약상 허용 가능한 담체를 포함하는, 상기 운동 장해 치료용 제약 조성물에 관한 것이다.  본 발명에서 설명되는 바와 같은 도파민 아고니스트 치료법은 일반적으로 파킨슨 질병과 같은 중추 신경계 장애의 치료에 사용한다.
Patent KR-20000026885-A (KR)
Title: Method for cleaning sensitive liquid of wafer
Inventor: LEE JONG HO
IPC: H01L21/304
Filed: 1998-10-23
Abstract: PURPOSE: A sensitive liquid of wafer cleaning method is provided to effectively reduce the defect of wafer due to the temperature difference between a cooling plate and a wafer and to enhance the cooling effect of the wafer by dispersing the cooling air. CONSTITUTION: A system comprises a wafer(10, 20, 30), a cooler plate(12, 22, 32), a pin(14, 24, 34), a process cooling water supply conduct(16), a cooling air supply conduct(35), a screw(36), a pin bearing (38), and an air cylinder(40). A method comprises a step of loading the wafer to the left station; a step of sequentially loading the wafer which is loaded to the left station into the chamber; a step of carrying out the cleaning to eliminate the sensitive liquid smeared at the wafer; a step of unloading the wafer which is inside the chamber; and a step of cooling the unloaded wafer by loading it to the cooler stage. The method further comprises a step of unloading the wafer at the cooler stage and a step of unloading the wafer at the cooler stage to the cassette of the right station.
Patent KR-20000027072-A (KR)
Title: Method for controlling multistepped congestion in asynchronous transfer mode network
Inventor: JEONG JONG MYEONG
IPC: H04L12/28
Filed: 1998-10-26
Abstract: PURPOSE: A method for controlling multi stepped congestion in an ATM(asynchronous transfer mode) network is to allow network users to use an optimum path considering states of all available resources between the network users and thereby disperse the congestion. CONSTITUTION: A method for controlling multi stepped congestion comprises the steps of: designating a multi stepped congestion level in advance depending on a state of a virtual path; catching a current congestion level according to amount of traffic passing through the virtual path, based on the designated congestion level; and performing a graded congestion control depending on the catched current congestion level to disperse load applied to the network. The multi stepped congestion level is classified into four steps of a first congestion level 1, a second congestion level 2, a third congestion level 3, and a fourth congestion level 4 depending on the traffic data and network information status.
Patent KR-19990030349-A (KR)
Title: 도로표식등의 점등을 위한 풍력발전기의 풍향렌즈
Filed: 1998-11-05
Abstract: 가. 청구범위에 기재된 발명이 속하는 기술분야. 
     본 발명은 풍력을 이용하여 도로표시 등을 위한 도로표식등을 점등시킬 수 있도록 되는 풍력발전기에 사용되는 것으로, 풍향의 방향에 따라 팬이 돌아가는 것이 원활하지 않게 되는 것을 방지하고 풍력을 집중시킬 수 있도록 되는 풍향렌즈에 관한 것이다. 
     나. 발명이 해결하려는 기술적 과제. 
     풍력을 이용하여 발전을 시킬 수 있도록 하기 위하여는 바람의 방향이 어떠한 방향에서 불어올 경우에도 회전되는 팬에 영향을 주지 말아야하나 통상 팬은 바람을 전면으로 받을 경우에는 회전되는 각각의 팬이 어느 것은 회전되는 방향으로 바람을 받게 되고 어느 것은 반대방향으로 바람을 받게 될 경우에는 팬의 회전력이 저하되는 문제점이 있는 것이다. 
     다. 발명의 해결방법의 요지. 
     본 발명에서는 바람의 방향에 관계없이 항상 일정방향으로만 바람이 집중되어 팬을 빠르게 회전시킬 수 있도록 되는 풍향렌즈에 관한 것으로, 팬의 사방으로 4등분된 절곡판을 형성하고 각각의 절곡판 선단은 팬에 근접토록 하고 후단은 팬에서 멀리 떨어지도록 하여 바람의 방향이 어디에서 불 경우에도 절곡판의 후단으로 진입하여 선단으로 빠져나가면서 바람을 집중시키게 되는 것이다. 
     라. 발명의 중요한 용도 
     도로 표식등의 점등을 위한 풍력발전기의 풍향렌즈.
Patent KR-20000033580-A (KR)
Title: Milking room and milking frame
Inventor: YI JUNG HWA
IPC: A01K1/12
Filed: 1998-11-24
Abstract: PURPOSE: A milking room and a milking frame are provided which possible to milk both underground and on the level ground, can be used as a fixing frame in artificial insemination and treating diseases, and can reduce mastitis because the time consumed to attache a milking unit is short. CONSTITUTION: A milking room having a milking frame is comprised of: a passage to receive excretions to make the excretions discharged to the circumference of ground installed a milking frame which is comprised of a cage(1) comprised by welding sub-materials and arch-shaped sub-materials to control the movement of dairy cattle, a lifting cylinder(2) to elevate the cage(1) to make the worker worked conveniently, a door(4) moved with fixing by a hinge(9) in one side of the front of the cage(1) and having a feeding container to be attached and detached to induce the dairy cattle to move into the milking frame and make the same calm down while milking, and a device to control the movement of the lifting cylinder(2), a passage for working, installed in the side of the dairy cattle to avoid the worker wounded by the dairy cattle, and a grate on the passage to receive excretions and the passage for working to make the excretions discharged easily.
Patent KR-20000033916-A (KR)
Title: Method for removing rinse liquid
Inventor: LEE SEUNG HO
IPC: H01L21/304
Filed: 1998-11-26
Abstract: PURPOSE: A method for removing rinse liquid is provided to decrease or remove the residual rinse liquid for maintaining a resist pattern after a spin dry operation. CONSTITUTION: A method for removing rinse liquid includes a first to a fifth step. At the first step, a resist is applied on the semiconductor board(21). At the second step, a resist pattern(23) is formed by patterning the resist. At the third step, the resist pattern(23) is rinsed. At the forth step, The resist pattern(23) is spinned. At the fifth step, The resist pattern(23) is spinned and dried. Further, the third step and the fifth step are performed in the same chamber(10).
Patent KR-20000034565-A (KR)
Title: Method for distinguishing disk in cd/dvd using disk player
Inventor: HONG CHOONG SEON
IPC: G11B20/18
Filed: 1998-11-30
Abstract: PURPOSE: A method for distinguishing disk in CD/DVD using disk player is provided to consult a user's convenience by making laser diodes corresponding to a loaded disk be converted automatically according to the presence of a tracking error signal detected by driving a tracking servo as a disk is loaded in a CD/DVD using disk player in which two laser diodes having different wave length is installed for dual focus. CONSTITUTION: A method for distinguishing disk in CD/DVD using disk player comprises several steps. A focus search step is to do a focus search action after an initial step, in which a disk is loaded in a tray, is done(S1,S2). A tracking servo step is to operate a tracking servo by force after the focus search action is done(S3). A tracking error signal detecting step is to detect a tracking error signal in the tracking servo step(S4). A signal converting step is to convert the tracking error signal detected in the tracking error signal detecting step to a digital signal and to output the tracking error data (S5). A determining step is to determine the presence of the tracking error data in the signal converting step(S6). A playback step is to play back data of CD when the tracking error data is determined to be present(S7). A laser diode converting step is to convert a laser diode for playback of DVD and to progress to the playback step when the tracking error data is determined not to be detected(S8).
Patent KR-20000038932-A (KR)
Title: Suspension system of washing machine
Inventor: KIM SANG SU
IPC: D06F37/24
Filed: 1998-12-10
Abstract: PURPOSE: A suspension system of a washing machine is provided to reduce the vibration and the noise generated by the vibration of a washing machine by installing a rubber damper. CONSTITUTION: A suspension bar(120) support a washing tub(110) in a body of a washing machine. A coil spring is installed at the end of the suspension bar(120). The coil spring(132) resiliently supports the washing tub(110). A cap(136) is provided at the end of the suspension bar(120) so as to support the coil spring(132). A damper(134) which has a value smaller than the resilient constant of the coil spring(132) is installed at the end of the suspension bar(120).
Patent KR-20000039057-A (KR)
Title: Ball grid array package and manufacture thereof
Inventor: GANG IN GU
IPC: H01L23/50
Filed: 1998-12-10
Abstract: PURPOSE: A ball grid package is provided to employ any chips of various size in either structure of fan-in or fan-out. CONSTITUTION: A ball grid array package includes a chip(10) attached under a printed circuit board(12) by an elastomer(17) such as silicone. While the chip(10) has balls(20) centrally formed on a top surface thereof, the printed circuit board(12) has a window(18) centrally formed therein and exposing the balls(20). Through the window(18), the balls(20) are connected with circuit patterns on the printed circuit board(12) by wires(22). A mold layer(16) covers all of the wires(22), the window(18) and balls(20), and another mold layer(16) covers sides of the chip(10) and the bottom of the board(12). A plurality of solder balls(14) are formed on the top of the board(12) and then connected with the circuit patterns on the board(12), surrounding the mold layer(16) on the chip(10). Both mold layers(16) are formed in a mold die having top and bottom cavities by a conventional transfer molding method.
Patent KR-20000041851-A (KR)
Title: Method for processing calls of tightly-coupled voice mailing system
Inventor: JEE DEOK GU
IPC: H04M3/50
Filed: 1998-12-23
Abstract: PURPOSE: A method for processing calls of a tightly-coupled voice mailing system(VMS) is provided to perceive a status of an extension number for requiring a connection with a received call through a data path before connecting the number with the received call. CONSTITUTION: A method for processing calls in a tightly-coupled voice mailing system(VMS) comprises the steps of: recognizing a received call, and inquiring a status of a corresponding subscriber through a data path according to a tight coupling; if the status of the corresponding subscriber is an idle status, transferring the received call to the subscriber.
Patent KR-19990044068-A (KR)
Title: 패널형 마이크로폰
IPC: H04R25/00
Filed: 1996-09-02
Abstract: 분산 모드 음향 부재(12)와 입사 음향 에너지로 인한 상기 부재의 공진에 대해 신호를 생산하기 위하여 상기 부재에 전체적으로 그리고 전면적으로 부착되어 있는 트랜스듀서(63)를 포함하는 것을 특징으로 한다.
Patent KR-19990071470-A (KR)
IPC: H03L7/06
Filed: 1996-11-19
Abstract: A point-to-multipoint star configured terrestrial radio communication system having at least one base station transmitting to and receiving RF communication signals from a plurality of associated subscriber stations in the 0.3-300 GigaHertz (GHz) range. The system includes means for reducing frequency uncertainty, drift or error of the RF transmissions from each of the subscriber stations to the base station. Each subscriber station has a low cost local reference oscillator, and the system incorporates a reference broadcast signal of high frequency precision from the base station and at each subscriber station there is means for measuring frequency error and compensating for frequency drift/error in the low-cost oscillator at the subscriber station. Moreover, the system can provide an estimate obtained from measuring each subscriber frequency drift or error in the base station and relaying the measured error to the corresponding subscriber station to compensate for that subscriber's transmitter's local oscillator be out of frequency.
Patent KR-19990071899-A (KR)
IPC: B31F1/07
Filed: 1996-12-02
Abstract: PCT No. PCT/IT96/00238 Sec. 371 Date Oct. 28, 1998 Sec. 102(e) Date Oct. 28, 1998 PCT Filed Dec. 2, 1996 PCT Pub. No. WO97/20687 PCT Pub. Date Jun. 12, 1997An embossing and laminating machine comprising a first embossing cylinder with a surface provided with a first set of protuberances, a second embossing cylinder with a surface provided with a second set of protuberances, said two embossing cylinders forming a nip, and a first and a second pressure roller interacting with said first and second embossing cylinders respectively; and in which said sets of protuberances are made in such a way that in said nip some of said first set of protuberances coincide with some of said second set of protuberances, while other protuberances of said first set are out of phase with corresponding protuberances of said second set, wherein said embossing cylinders are mechanically connected by a transmission which does not keep the cylinders in phase and which causes slight relative slippage between said embossing cylinders.
Patent KR-19990076877-A (KR)
Title: 비트로넥틴 수용체 길항제
IPC: C07D413/12
Filed: 1996-12-20
Abstract: 본 발명은 하기 화학식 (I)의 화합물 또는 그의 제약학상 허용가능한 염에 관한 것이며, 이는 골다공증 치료에 유용한 비트로넥틴 수용체 길항제이다. 
     <화학식 I> 
     
       
     
     상기 식에서, 
     A는 피브리노겐 길항제 템플릿이고; 
     W는 -(CHR g ) a -U-(CHR g ) b -V- 형의 연결 잔기이고; 
     Q 1 , Q 2 , Q 3 및 Q 4 는 독립적으로 N 또는 C-R y 이며, 단, Q 1 , Q 2 , Q 3 및 Q 4 중 하나만이 N이고; 
     R'은 H 또는 C 1-6 알킬, C 3-7 시클로알킬-C 0-6 알킬 또는 Ar-C 0-6 알킬이고; 
     R g 는 H 또는 C 1-6 알킬, Het-C 0-6 알킬, C 3-7 시클로알킬-C 0-6 알킬 또는 Ar-C 0-6 알킬이고; 
     R k 는 R g , -C(O)R g 또는 -C(O)OR g 이고; 
     R i 는 H, C 1-6 알킬, Het-C 0-6 알킬, C 3-7 시클로알킬-C 0-6 알킬, Ar-C 0-6 알킬, Het-C 0-6 알킬-U'-C 1-6 알킬, C 3-7 시클로알킬-C 0-6 알킬-U'-C 1-6 알킬 또는 Ar-C 0-6 알킬-U'-C 1-6 알킬이고; 
     R y 는 H, 할로, -OR g , -SR g , -CN, -NR g R k , -NO 2 , -CF 3 , CF 3 S(O) r -, -CO 2 R g , -COR g 또는 -CONR g   2 , 또는 할로, -OR g , -SR g , -CN, -NR g R", -NO 2 , -CF 3 , R'S(O) 3 -, -CO 2 R g , -COR g 또는 -CONR g   2 에 의해서 임의로 치환된 C 1-6 알킬이고; 
     U 및 V는 부재하거나, CO, CR g   2 , C(=CR g   2 ), S(O) c , O, NR g , CR g OR g , CR g (OR k )CR g   2 , CR g   2 CR g (OR k ), C(O)CR g   2 , CR g   2 C(O), CONR i , NR i CO, OC(O), C(O)O, C(S)O, OC(S), C(S)NR g , NR g C(S), S(O) 2 NR g , NR g S(O) 2 N=N, NR g NR g , NR g CR g   2 , NR g CR g   2 , CR g   2 O, OCR g   2 , CR g =CR g , C≡C, Ar 또는 Het이고; 
     a는 0, 1, 2 또는 3이고; 
     b는 0, 1 또는 2이고; 
     c는 0, 1 또는 2이고; 
     r은 0, 1 또는 2이고; 
     u는 0 또는 1이다.
Patent KR-19990082037-A (KR)
Title: 상이한 속도의 디지털 티디엠신호들을 스위칭시키기 위한 방법및 시스템
IPC: H04Q11/08
Filed: 1997-01-17
Abstract: 디지털 전기통신 스위칭시스템은 입력 및 출력 디지털링크들에 멀티플렉스된 정규속도 채널들과 관련된 타임슬롯을 선택적으로 스위칭시키기 위한 다수의 양방향 포트들을 가지는 주 정규속도 스위치를 포함한다. 프레임내 각 타임슬롯은 규정된 수의 비트를 포함한다. 정규속도 스위치는 스위치포트들중 어떤 하나로부터 수신된 타임슬롯들을 다른 스위치포트들중 어떤 하나로 정규속도로 스위치한다. "애드-온" 하위속도 스위치는 정규속도 스위치에 모듈적으로 연결되어 정규속도 보다 느린 데이터 전송속도에서 타임슬롯내 하나 또는 그 이상의 하위속도 채널들에 상응하는 하나 또는 그 이상의 비트들을 선택적으로 스위치한다.
Patent KR-20000065002-A (KR)
Title: 2단계 진공 펌핑장치
IPC: F04C27/00
Filed: 1998-02-25
Abstract: 본 발명은 진공 펌핑장치에 관한 것으로서, 이 진공 펌핑장치는 비스크롤형 보조펌프(60)와 단일 하우징(52)에 배치된 스크롤펌프(62)를 포함한다.  보조펌프(60)와 스크롤펌프(62)는 나란하게 연결되며 공동 모터(68)에 의하여 구동된다.  보통, 보조펌프는 비교적 높은 펌핑속도를 가지며 스크롤펌프는 비교적 높은 압축비를 갖는다.  보조펌프는 재생송풍기와, 루츠형 송풍기 또는 스크류형 송풍기일 수도 있다.  동축회전식 스크롤펌프가 이용되면, 재생송풍기는 위에 비선회형 스크롤블레이드가 장착된 디스크의 외주에 또는 외주 근처에 형성될 수도 있다.  다른 배치방법으로서는, 하우징 내에 제 1 스크롤펌프와 제 2 스크롤펌프가 배치된다.  제 1 스크롤펌프와 제 2 스크롤펌프의 스크롤블레이드 세트들은 다른 선회반경을 갖는다.  스크롤펌프의 누설은 스크롤펌프의 입구영역 주위에서 폐루프형 밀봉재를 형성하거나 중간압력을 이 입구영역에 연결하므로써 감소될 수도 있다.  스크롤펌프의 누설과 오염물질은 구동부품들과 궤도선회형 스크롤브레이드가 비궤도선회형 스크롤브레이드의 반대쪽에 위치되는 것과 같은 스크롤펌프 구조에서 감소될 수도 있다.
Patent KR-20000022546-A (KR)
Title: Modification apparatus
Inventor: KUDO HITOSHI
IPC: H01M8/06
Filed: 1997-06-30
Abstract: PURPOSE: A modification apparatus is provided with these three independent reaction portions united together, it can be miniaturized, and the heat from the heat source can be utilized effectively, and the controlling of temperatures in the reaction sections can be done excellently. CONSTITUTION: A modification apparatus is provided with a raw material modification section including a heat source for generating heat when a fuel gas is burnt and adapted to reaction heat directly from the heat source, vapor modify a material, and produce a modification gas containing hydrogen as a main component, a shift reaction section for reducing by a water shift reaction the amount of CO contained in the modified gas formed in the raw material modification section, and a CO oxidation section adapted to further reduce the amount of CO contained in the modified gas after the process in the shift reaction section, by oxidizing the same. These sections are united as independent sections. These raw material modification section, shift reaction section and CO oxidation section are arranged so that the shift reaction section and CO oxidation section are indirectly heated by the heat transmitted from the heat source of the raw material modification section. The indirect heating is conducted by a solid heat transmission method by which heat is transmitted from the outer faces of the combustion chamber via an intermediate member, a method utilizing radiant heat, and a method utilizing the heat of a combustion exhaust gas discharged from the combustion chamber.
Patent KR-20000050460-A (KR)
Inventor: YUN JAE OK
IPC: B23K9/127
Filed: 1999-01-09
Abstract: PURPOSE: A device and a method are provided to embody an automated and unmanned welding system by automatically controlling and adjusting the bead width of a welding torch. CONSTITUTION: A welding torch is reciprocated by arc current wave detected from the electrode of the welding torch. A driving motor(M) is continually driven until the welding torch reaches to the set current level regardless of a narrow section or a wide section. The welding torch is transferred to one end of a V reformed portion and a welding current value which is the shortest point between the V reformed portion and the welding torch reaches to the set current level. A comparator(300) compares the current value with the current level which is set by a width adjuster(301) and delivers the compared value to a control circuit(400). The control circuit drives the driving motor in an opposite direction so that the welding torch is automatically reciprocated according to the changed width.
Patent KR-20000052054-A (KR)
Inventor: KIM JEONG YEOL
IPC: G07F17/32
Filed: 1999-01-29
Abstract: PURPOSE: A game table management system is provided to track the table dealer, support the services desired by players, and count the income for the host club to provide an effective game table management technique. CONSTITUTION: A system has three modules of a table module, a personal computer module and a decoder board module to make wireless communication among them to be simple and effective in structure. The system also employs a micro switch to drive the LED of the chip sensor when a chip drops through a chip slot in the table to the effect of minimized power consumption. The system mounts a heterodyne circuit and a narrow band frequency modulation demodulator on the receiver block of the table module to remove the noise component.
Patent KR-20000054992-A (KR)
Title: Stacked chip lc filter
Inventor: AHN BYUNG JUN
IPC: H01P1/205
Filed: 1999-02-02
Abstract: PURPOSE: A stacked chip LC filter is provided to enhance insertion loss characteristics by improving an electrode structure and minimize parts by integrating a network of stacked inductors and condensers in a single chip, thereby improving noise removing effect and simplifying manufacturing procedure. CONSTITUTION: A stacked chip LC filter includes a plurality of ferrite or dielectric sheets(1-13), and a pair of inductors and a condenser formed on the respective sheets. One inductor is formed with a plurality of inner electrodes(14,-21) printed on the sheet and a plurality of holes(31-38) for connecting the inner electrodes with other inner electrodes. The other inductor is formed with a plurality of inner electrodes(14'-21') printed on the sheet and a plurality of holes(31'-38') for connecting the inner electrodes with other inner electrodes. The condenser is formed by capacitance generated between the inner electrodes of the pair of inductors and other inner electrodes(23-30). The inductors and the condenser are formed according to the shapes of the inner electrodes printed on a single sheet.