baber/WOPTO huggingface dataset:
Patent KR-20010086548-A (KR)
Title: Device and method for self-testing application layer of home location register
Inventor: LEE GI CHEOL
IPC: H04B7/155
Filed: 2000-03-02
Abstract: PURPOSE: An application layer self-diagnosis apparatus and method in a home location register(HLR) is provided to save the maintenance cost and improve the reliability to the system by storing messages processed in the application layer of the HLR in a shared memory and displaying the messages to perform the self-diagnosis. CONSTITUTION: If an operator inputs self-diagnosis items, a previous day received message storage, and a current time in a MAP and sets a program environment for self-diagnosing a TCAP and the MAP(S100), a monitoring process judges whether messages transmitted from the MAP and the TCAP are received in a shared memory(S200). If the messages transmitted from the MAP and the TCAP are received in the shared memory, the monitoring process checks a time in which message are received(S300). If the monitoring process judges whether the current time is identical to the time in which messages are received(S400). If the current time is identical to the time in which messages are received, the monitoring process stores a current received message(S500). The monitoring process judges whether a data quantity received in the current time or the previous time is more than the self-diagnosis items(S600). If the data quantity received in the current time or the previous time is less than the self-diagnosis items, a display unit displays messages stored in the monitoring process to show the messages to the operator(S700). If the current time is not identical to the time in which messages are received, messages received in the previous time are stored(S410). If the data quantity received in the current time or the previous time is more than the self-diagnosis items, the messages stored in the shared memory are cleared for stably driving a system(S420).
Patent KR-20010091099-A (KR)
Inventor: LEE JAE GEUN
IPC: G06F17/00
Filed: 2000-03-13
Abstract: PURPOSE: The method for the internet broadcasting service on demand is provided to enable an audience freely and anytime to watch a program which the audience orders. CONSTITUTION: The audience accesses a service system. If the audience is a member of the service, the audience logs in, otherwise, the audience logs in after taking the member registration procedure. The service system displays a guide screen for choosing a service when the audience clicks a log-in key. If the audience chooses "Viewing pre-produced programs" on the guide screen, the service system displays a program list to a terminal of the audience and offers the program which the audience chooses. If the audience chooses "Ordering new programs," the service system displays a production request for ordering programs to the terminal of the audience and stores contents of the production request to a DB for the reference of the program production. If the audience chooses "Viewing ordered programs," the service system transfers the program which the audience ordered from a picture storage to the terminal of the audience. If the audience does not want any other service, the audience ends the service.
Patent KR-20010094549-A (KR)
Title: Skin care composition containing Phytosphingosine and Morus alba Extract
Inventor: CHO BYEONG GI
IPC: A61K8/97
Filed: 2000-03-31
Abstract: PURPOSE: A cosmetic skin care composition containing phytosphingosine and a Morus alba Linne extract as a main component is provided, which has improved anti-shadow effect, reduces the wrinkle formation of skin and prevents lowering skin elasticity. CONSTITUTION: This cosmetic skin care composition contains 0.05 to 20.0% by weight of niosome based on the total weight of the cosmetic, wherein the niosome is obtained by stabilizing phytosphingosine and a Morus alba Linne extract. The phytosphingosine and Morus alba Linne extract are mixed in an amount of 0.01 to 5.00% by weight respectively based on the total weight of the niosome.
Patent KR-20010093943-A (KR)
Title: Device and method for transmitting message between sms and scp in cdma system
Inventor: LEE SEONG HO
IPC: H04L12/28
Filed: 2000-04-03
Abstract: PURPOSE: An SMS(Service Management System)-to-SCP(Service Control Point) message transmission system and a method in a CDMA intelligent network system are provided to offer call services of good quality to users by improving the reliability of instruction transmission in data downloading and uploading to an SCP in a CDMA intelligent network system. CONSTITUTION: An SMS-to-SCP message transmission system consists of an SMS(100) and a plurality of SCPs(200). An SMS(100), comprised of an external interface block(101) and an SCP interface part(102), receives a subscriber information modification instruction from a subscriber information processing unit(1) and transmits it to a relevant SCP(200) through TCP/IP communication. If the subscriber information modification instruction is inputted, the external interface block(101) changes it into an SMS internal packet and outputs it to the SCP interface part(102). The SCP interface part(102), if the external interface block(101) outputs the subscriber information modification instruction, changes it in the form of a TCP/IP packet and transmits it to an SMS interface part(201) in a relevant SCP(200). Each SCP(200) consists of an SMS interface part(201), an SMS interface block(202), and a plurality of extrinsic service processing servers(203). The SMS interface part(201) receives the subscriber information modification instruction from the SCP interface part(102), changes it into the packet of an SCP internal standard, and outputs it to the SMS interface block(202). If the SMS interface part(201) outputs the subscriber information modification instruction, the SMS interface block(202) transmits it to a relevant extrinsic service processing server(203) after catching which extrinsic service the instruction belongs to.
Patent KR-20010096082-A (KR)
Title: surface defect inspection apparatus for semi-conductor wafer
Inventor: LEE JAE HONG
IPC: H01L21/66
Filed: 2000-04-17
Abstract: PURPOSE: An apparatus for testing badness of a surface of a semiconductor wafer is provided to check badness of a surface of a wafer by using an optical method. CONSTITUTION: A CCD(Charge Coupled Device) camera(14) provides optical pattern data for a surface of a wafer. A camera driving portion(40) is used for driving the CCD camera(14). A motor(12) rotates a vacuum chuck. A motor driving portion(14) is used for driving the motor(12). A flat zone sensor portion(34) senses a flat zone of the wafer. A rotary angle sensor portion(36) senses a rotary angle of the vacuum chuck. A light source(15) irradiates light to a surface of the wafer. A luminous intensity control portion(54) controls luminous intensity of the light source(15). A reference data storage portion(38) stores optical pattern data under the predetermined luminous intensity. A display portion(50) displays a badness type of the surface of the wafer. A display control portion(48) controls the display portion(50). A test data storage portion(52) stores test data.
Patent KR-20010096317-A (KR)
Title: Rice and pine nuts wine and process for preparation thereof
Inventor: SHIN WON CHEOL
IPC: C12G3/02
Filed: 2000-04-18
Abstract: PURPOSE: 'MAKKOLLI'(unrefined rice wine) using pine nuts and a producing method thereof are provided, thereby producing 'MAKKOLLI' having improved flavor and taste. CONSTITUTION: The method for producing 'MAKKOLLI' using pine nuts comprises the steps of: a) increasing the sugar content in grains and adding pine nuts to the grains in a ratio of 1:0.005 to 1:0.2 to produce the raw material of 'MAKKOLLI'; b) adding yeast and water into the raw material to produce raw spirits; c) mixing the remaining raw material and water into the raw spirits to produce the first dipping water; d) dipping the grains in the first dipping water and adding purified enzymes and water into the first dipping water to produce the second dipping water; and aging the second dipping water and adding sweetness and water.
Patent KR-20000071834-A (KR)
Title: 증발기
IPC: F28F13/18
Filed: 2000-04-27
Abstract: 고온 유체(流體)가 균일하게 전열면 각 위치에 접촉 가능한 전열면 형상으로 하고, 전열면 각 위치에서 확실하고 또한 충분하게 열 교환을 행하게 하여 저온 유체의 증발을 촉진할 수 있고, 열 효율을 향상시킬 수 있는 증발기를 제공한다. 
     전열면(1)에 복수의 영역(2,3,4,5)을 설정하고, 각 영역마다 상이한 복수의 요철(凹凸) 패턴을 형성하고, 유입되는 고온 유체에 각 영역마다 요철 패턴으로 유입 속도에 따른 저항을 부여하여 각각 유량을 조정하기 때문에, 고온 유체의 공급 위치가 편중되어 전열면(1)에 한결같이 고온 유체가 유입될 수 없는 경우에도, 고온 유체를 전열면(1) 전체에 퍼지게 하여 고온 유체의 전열면(1) 각 위치에서의 유량을 균일화시킬 수 있고, 전열면(1) 전체에서 고온 유체와의 접촉 빈도를 높여, 전열면(1)을 통한 고온 유체로부터 저온 유체로의 열 전달의 효율을 대폭 향상시킬 수 있다.
Patent KR-20000077103-A (KR)
Title: 터블레이션을 구비하는 제품과, 슬러리 및 터블레이션제공 방법
IPC: F01D5/28
Filed: 2000-04-28
Abstract: 제품은 납땜 합금과 같은 접착제로 기판의 표면에 접착된 터블레이션 재료를 포함한다.  일 실시예에 있어서, 터블레이션 재료는 약 125미크론 내지 약 4000미크론 범위내의 평균 미립자 사이즈를 가진 개별 금속 합금 미립자의 미립자 위상을 포함한다.  다른 실시예는 터블레이션을 도포하는 방법과, 터블레이션을 형성하기 위한 제품을 포함한다.
Patent KR-20000077110-A (KR)
IPC: H01L21/56
Filed: 2000-04-28
Abstract: 헤드 어셈블리에는 탑재면과 상기 탑재면에 탑재되어 신호를 처리하는 집적회로 칩이 배치된다.     집적회로 칩은 집적회로 칩으로부터의 이물질의 발생을 방지하는 막으로 덮인다.
Patent KR-20000071869-A (KR)
Inventor: KIM DAE HWAN
IPC: H01L21/205
Filed: 2000-04-29
Abstract: PURPOSE: A metal organic complex is provided to manufacture a metal oxidation thin film which is thermally stable and not sensitive to moisture. The metal organic complex exists in a liquid state at a room temperature so that it does not have a contamination material while having a good step coverage. CONSTITUTION: A metal organic complex is selected from a group of Ti(dmap)4(titanium tetra dimethylaminopropoxide), Ti(dmae)4(titanium tetra dimethylaminoethoxide) and Zr(dmae)4(zirconium tetra dimethylaminoethoxide). The metal organic complex is evaporated at the temperature from 20 to 300°C selectively together with another metal organic precursor or more. And, a metal oxidation thin film is evaporated on a substrate by having the generated vapor contact the substrate heated to the temperature from 300 to 600°C.
Patent KR-20000049972-A (KR)
Inventor: SON YOUNG GI
IPC: B60R99/00
Filed: 2000-05-03
Abstract: PURPOSE: A method of closing automobile door using a gear device is provided to achieve a comfortable closing of door while using a gear device for an automatic closing of the door and employing an LED lamp for each door of the automobile for indicating the closed/opened state of the door. CONSTITUTION: A method of closing automobile door in that the door closed/opened state is correctly detected by a sensor arranged at the door and if the door is sensed as not well closed, the gear device installed at the automobile door is operated to forcibly close the door, an automobile speed sensor is employed for forcibly closing the door when the vehicle speed exceeds 40km/hour, a timer operating circuit is used to forcibly closing the door in 1 to 5 minutes when the vehicle is not operated, a door state sensor is used to forcibly closing the door after performing a voice warning if the door is not properly closed.
Patent KR-20000077406-A (KR)
IPC: G06F12/00
Filed: 2000-05-24
Abstract: 본 발명의 목적은 한 개 또는 다수의 메인데이터, 상기 메인데이터를 제어하는 관리데이터, 상기 메인데이터와 관련된 한 개 또는 다수의 보조데이터와 보조데이터를 제어하는 보조 관리데이터를 기록매체상에 기록하고, 보조데이터와 보조 관리데이터가 관리데이터로부터 참조될 수 있도록 보조데이터와 보조 관리데이터를 연결시킴으로써 편집하는 작업을 단순화시키는 것이다.
Patent KR-20010107091-A (KR)
Inventor: PARK HONG SOON
IPC: B21D7/022
Filed: 2000-05-25
Abstract: 본 발명의 컷팅 블레이드의 절곡장치는 컷팅 블레이드를 그 내부에 형성된 가이드 라인을 따라 안내하는 가이드부, 가이드부의 선단에 인접하여 그 상부에 설치된 제1회전체, 가이드부의 선단에 인접하여 그 하부에 설치되며 제1회전체와 대향하는 제2회전체, 제1회전체의 지지공을 통해 삽입되어 지지되는 제1절곡부재, 제2회전체의 지지공을 통해 삽입되어 지지되며 제1절곡부재와 대향하는 제2절곡부재, 제1회전체 및 제2회전체를 회전 구동하는 구동원 및 제1절곡부재와 제2절곡부재 각각을 직선 구동하는 수단을 기본 구성으로 한다. 따라서, 컷팅 블레이드의 상부와 하부 각각에 대하여 독립된 가압력을 부여할 수 있고, 이 가압력의 크기를 컷팅 블레이드의 높이, 두께등의 외형치수 및 특히 열처리에 기인한 컷팅 블레이드의 물성을 고려하여 적절히 조정함으로써 스프링백의 영향을 원천적으로 제거하고 컷팅 블레이드를 오차 없이 또한 정밀도 높게 성형할 수 있는 효과가 있다.
Patent KR-20010107136-A (KR)
Inventor: HWANG GYU CHEOL
IPC: G11C8/00
Filed: 2000-05-25
Abstract: 여기에 개시된 내용 주소화 메모리(CAM) 셀은, 제 1 노드와 제 2 노드에 상보적인 제 1 및 제 2 데이터를 래치하는 래치 수단, 제 1 비트 라인과 상기 제 1 노드 사이에 형성된 전류 통로 및 워드 라인과 연결된 게이트를 가지는 제 1 트랜지스터, 제 2 비트 라인과 상기 제 2 노드 사이에 형성된 전류 통로 및 상기 워드 라인과 연결된 게이트를 가지는 제 2 트랜지스터, 상기 제 1 비트 라인과 제 3 노드 사이에 형성된 전류 통로 및 상기 제 2 노드와 연결된 게이트를 가지는 제 3 트랜지스터, 상기 제 3 노드와 상기 제 2 비트 라인 사이에 형성된 전류 통로 및 상기 제 1 노드와 연결된 게이트를 가지는 제 4 트랜지스터, 매치 라인과 접지 전압 사이에 형성된 전류 통로 및 상기 제 3 노드와 연결된 게이트를 가지는 제 5 트랜지스터 그리고 전원 전압과 상기 매치 라인 사이에 형성된 전류 통로 및 프리챠지 신호와 연결된 게이트를 가지는 프리챠지 트랜지스터를 포함한다.  단, 상기 제 3 및 제 4 트랜지스터들은 각각 PMOS 트랜지스터로 구성되어서, 상기 제 3 노드로 완전환 전원 전압을 공급할 수 있다.  그러므로, 낮은 전원 전압에서도 상기 제 5 트랜지스터가 턴 온되는데 까지 소요되는 시간이 단축된다.
Patent KR-20000058485-A (KR)
Inventor: LEE HO GUN
IPC: G06Q50/20
Filed: 2000-06-02
Abstract: PURPOSE: A web-based remote lecture system and the method are provided to achieve practical study effect without the restriction of time and space and to enable participation in study without the necessity of installing other special educational program on the computer of a learner. CONSTITUTION: A web based remote lecture system is comprised of a plurality of learner terminals(110a,110b), a server(120), a storage unit(130), a lecturer terminal(140) and a manager terminal(150). If a learner accesses the server(120) using his terminal(110), the server(120) extracts a specific study data from the storage unit(130) according to the learner's request and transmits the data to the learner terminal(110). The learner receives a specific question from the server(120) according to preset conditions and answers to the question. If a lecturer transmits a specific study data using the lecturer terminal(140) after accessing the server(120), the server(120) receives the study data and stores it in the storage unit(130).
Patent KR-20010109776-A (KR)
Inventor: KIM MAN SOON
Filed: 2000-06-02
Abstract: 본 발명은 허브커피에 관한 것으로, 커피원두의 성분을 최대한 함유하면서 허브원료의 효능을 상호 보완하여 본래 커피의 맛과 향을 즐기면서 허브 특유의 성분에 의한 건강을 도모할 수 있도록 함에 그 목적이 있다.  이를 위해 구성되는 본 발명은 커피원두를 건조시킨 상태에서 200∼250℃로 배전한 후 분쇄하여 비등점에서 정수로 환류·추출하고 추출액을 농축시킨 상태에서 냉동 건조 후 분쇄하여 제조한 분말 상태의 커피 분말 90∼99%와 치커리, 창출, 오가피, 칡, 은행잎, 녹용, 당귀, 산수유, 영지 및 호박의 허브원료 각각을 소정의 비율로 혼합한 후 분쇄하여 정수로 환류·추출하고 추출액을 농축시킨 상태에서 냉동 건조 후 분쇄하여 얻어진 분말 상태의 허브 추출물 1∼10%를 배합하여 제조한 것이다.
Patent KR-20010112995-A (KR)
Title: An automatic telephone response system having a function of automatic advising operation
Inventor: KOO KWANG WOOK
IPC: H04M3/50
Filed: 2000-06-15
Abstract: A therapeutic agent for erection failure and gynecoid incompetence, which is free from the problems involved in oral administration and direct injection, is safe, and exhibits excellent effect. A therapeutic agent for erection failure and gynecoid incompetence for intranasal administration, percutaneous administration, or mucosal administration, such as oral mucosal administration or penis mucosal administration, characterized by containing as the active ingredient at least one compound having cyclic GMP phosphodiesterase inhibitory activity or salt thereof.
Patent KR-20020000910-A (KR)
Inventor: KIM MIN HUI
IPC: B22D11/10
Filed: 2000-06-21
Abstract: PURPOSE: A submerged entry nozzle is provided which not only smoothly supplies molten steel from the tundish to a mold but also effectively mixes the molten steel supplied so that inclusions in the molten steel are floated onto the surface of molten steel, thereby producing steel having a high cleanliness. CONSTITUTION: In a submerged entry nozzle comprising a channel(32) which is formed at the center of the inside of a pipe shaped body(31) made of a refractory material in a length direction of the body; a molten steel guide part(33) which is formed at the end part of the channel(32); and discharging ports(34) which are formed upward at both sides of the molten steel guide part(33), the submerged entry nozzle further comprises a molten steel guide plate(35) which is installed at the molten steel guide part(33), guide plate(35), and molten steel guides(35b) are formed at both end parts of the molten steel friction part(35a); and a molten steel reverse flow port, wherein a molten steel suction passage(36a) which is formed at the lower center part of the molten steel guide plate(35) so that the molten steel guide plate(35) is connected to the lower part of the body(31), and molten steel discharging passages(36b) which are formed at both sides of the upper part of the molten steel suction passage(36a).
Patent KR-20020000971-A (KR)
Title: Movie Browser Which Allows Realtime Conversation
Inventor: AHN JAE MUN
IPC: G06F15/16
Filed: 2000-06-23
Abstract: PURPOSE: A moving picture browser capable of conversing in real-time is provided to solve the complication of a question process by making a communication in real-time with a server operator during or after an educational image is displayed. CONSTITUTION: An educational movie study browser(1) is comprised of a question/answer window(Q/A window)(2), a send button(3) for transmitting the question of the question/answer window(2), an advertisement running blank(4a,4b), an image controlling button(5), a movie window(6), and a time slider(7). The question/answer window(2) is a window for writing a doubtful point about an image content in a question manner in watching an educational image and after watching it. The movie window(6) is a place for televising the educational image and the time slider(7) is a timer representing a progress degree of the educational image. The image controlling button(5) controls the educational image televised in the movie window(6) and is composed of a play button, a stop button, a pause button, a rewind button, a fast forward button, and a slow play button. A dialog window(8) outputs in real-time the question written on the question/answer window(2) and an answer of the server operator in a conversation manner.
Patent KR-20020002630-A (KR)
Title: A method for forming a gate electrode of a semiconductor device
Inventor: JANG SE EOK
IPC: H01L21/336
Filed: 2000-06-30
Abstract: PURPOSE: A method for forming a gate electrode of a semiconductor device is provided to prevent a generation of tungsten silicide, by performing a nitrogen implantation process on an interface between a polysilicon layer and a tungsten layer to form a diffusion barrier layer. CONSTITUTION: A stacked structure of a silicon layer(35) and the tungsten layer(37) is formed on a semiconductor substrate(31). N2 or N is implanted into the interface between the silicon layer and the tungsten layer, and a heat treatment process is performed in an ammonia or nitrogen gas atmosphere to form the diffusion barrier layer(WSiN)(39) on the interface. A chemical vapor deposition(CVD) insulation layer(41) as a hard mask layer is formed on the tungsten layer. A stacked structure of the CVD insulation layer, the tungsten layer, the diffusion barrier layer and the silicon layer is etched and patterned by an etch process using the gate electrode mask. A lightly-doped-drain(LDD) junction region is formed by a subsequent process.
Patent KR-20020006881-A (KR)
Title: Apparatus and Method of Converting Bell for Mobile Communication Terminal
Inventor: HONG JI HOON
IPC: H04W8/24
Filed: 2000-07-13
Abstract: PURPOSE: An apparatus and method for changing a bell sound of a mobile communication terminal is provided to convert sounds obtained by a user through a cellular phone, a computer, and a general wired telephone into melody sounds and offer the converted melody sounds to the mobile communication terminal. CONSTITUTION: A mobile communication terminal(100) transmits acoustic data obtained from a user to a data conversion service company(300) through a mobile communication service company(200), and sets a melody sound provided from the data conversion service company(300) through the mobile communication service company(200) as a bell sound. The data conversion service company(300) receives the acoustic data provided from the mobile communication terminal(100), converts the received acoustic data into the melody sound, and transmits the converted melody sound to the mobile communication terminal(100).
Patent KR-20020009253-A (KR)
Inventor: KIM JONG BOK
IPC: B41L7/02
Filed: 2000-07-25
Abstract: PURPOSE: A transferring device is provided to reduce a producing cost by transferring sample mixing transfer ink and additives through a roller and to improve productivity. CONSTITUTION: A transfer apparatus comprises a transfer body(52) having a working board(51); a roller(53) supplying sample by being rotationally mounted on the transfer body; a print roller(54) contacting to the sample supplying roller; a synthetic resin roller(55) rotating by contacting to the print roller; a supporting roller(56) attaching the transferred material into the synthetic resin roller; a scraper unit(57) spreading the sample into a surface of the print roller from the sample supplying roller; a fixed bracket(59) installed in the middle of the working board; a first long hole(58) formed on the fixed bracket; plural supporting plates supporting the working board; first and second vertical plates(62,63) connected to a rear portion of the working board; a second long hole(64) formed on the middle of the first ve5rticla plate; and plural supporting holes(65,66,67,68); and a sample supporting unit(69).
Patent KR-20010021186-A (KR)
Title: pressure sensor and method of manufacturing the same
Inventor: MASUDA HOMARE
IPC: G01L9/04
Filed: 2000-08-02
Abstract: PURPOSE: To obtain an inexpensive high-quality pressure sensor by constituting the sensor in such a way that the sensor can be manufactured through a less number of bonding steps than the conventional example and, at the same time, eliminating the need of a jig and a glass-made buffer member for positing electrode pins. CONSTITUTION: A pedestal package is provided with a metallic cylindrical member (metallic connector 6), positioning glass 4 which is provided in the cylindrical member and made of a nonconductive material, and hermetically sealing glass 5 which is laid on the glass 4 in the cylindrical member and made of such a nonconductive material that softens at a lower temperature than the glass 4 does. The package is also provided metallic electrode pins 3 which are passed through the glass 4 and 5. The contacting sections between the cylindrical member and glass 4 and between the pins 3 and glass 4 are hermetically sealed.
Patent KR-20020012346-A (KR)
Title: Supported Catalyst for Producing a Syndiotactic Styrene Polymer with High Productivity and Reduced Reactor Fouling
Inventor: JANG HAK JEON
IPC: C08F4/64
Filed: 2000-08-07
Abstract: PURPOSE: A dipping catalyst for preparing syndiotactic polystyrene and its preparation method are provided, to improve the production yield and to reduce the reactor fouling when a stirred tank reactor is used. CONSTITUTION: The dipping catalyst comprises a polymer which coats the surface of a carrier to play a role as a mediator or an insulation layer between the carrier and a transition metal compound; a carrier; and a transition metal compound. The polymer doesn't influence on the catalyst action, reacts with the surface of a catalyst and a carrier chemically or physically, isn't dissolved in a styrene monomer or a polymerization solvent after being dipped, and contains a polar group. Preferably the carrier is an organic carrier selected from the group consisting of styrene-divinylbenzene random copolymer bead, starch, and polyolefin powder; or an inorganic carrier selected from the group consisting of silica gel, alumina, silica-alumina gel, zeolite, mica powder, clay, molecular sieve, metal oxide, halogenated metal, carbonate metal and metal powder. The transition metal compound is represented by the formula A: MR1aR2bR3cX4-(a+b+c) or B: MR1dR2eX3-(d+e), wherein M is an element of the group 4B; R1, R2 and R3 are a halogen atom, an alkyl group of C1-C20, an alkoxy group of C1-C20, an aryl group of C6-C20, an alkylaryl group of C6-C20, an arylalkyl group of C6-C20, an aryloxy group of C1-C20, cyclopentadienyl group, a substituted cyclopentadienyl group or an indenyl group; X is a halogen atom; a, b and c are integer of 0-4; and d and e are integer of 0-3.