baber/WOPTO huggingface dataset:
Patent KR-20010058142-A (KR)
Inventor: KIM SANG UK
IPC: G02F1/133
Filed: 1999-12-24
Abstract: PURPOSE: An alignment device for substrate bondage of a liquid crystal display is to mount a reflector on the substrate upon measuring reflectance of the substrate and a glass mark in the liquid crystal display in which a reflective glass mark and an absorptive glass mark are used together, to compensate for the reflectance difference, thereby precisely aligning the substrates. CONSTITUTION: A reflective type glass mark is formed on an upper substrate and an absorptive type glass mark on a lower substrate, and vice versa. Under the substrate including reflective type glass mark is mounted a CCD(charge coupled device) camera(10) to measure the reflectance difference between the substrate and the glass mark. On the substrate is mounted a reflector(12) to amplify the reflectance difference between the absorptive type glass mark and the substrate. The reflector includes a micro gauge for regulating the degree of amplitude correspondingly to the reflectance difference between the reflective type glass mark and the substrate. A semiconductor wafer is used as reflector.
Patent KR-20000057111-A (KR)
Inventor: LU CHIJIANG
IPC: G03F7/11
Filed: 1999-12-28
Abstract: PURPOSE: An improved control method for a critical dimension is provided to reduce reflexibility in a resist layer during a lithographic process and thereby to prevent standing wave in the resist layer. CONSTITUTION: To control a critical dimension, a multilayered anti reflection coating(ARC) layer(130) is provided between a semiconductor substrate(110) and a resist layer(170). The multilayered ARC layer(130) includes a first ARC layer(135) formed on the substrate(110) and a second ARC layer(140) formed on the first ARC layer(135). In particular, the first ARC layer(135) operates in an absorption mode, and the second ARC layer(140) operates in a destructive interference mode. Preferably, the first ARC layer(135) has an absorption coefficient of at least 0.2, and more desirably, at least 0.5. On the other hand, the second ARC layer(140) has a refractive index selected to reduce reflexibility in the resist layer(170).
Patent KR-20010061456-A (KR)
Inventor: YANG TAE HEUM
IPC: H01L27/04
Filed: 1999-12-28
Abstract: PURPOSE: A circuit for controlling voltage is provided to generate the control signal in reaching the wanted voltage and to reduce the consumption of the electrical current by increasing the period of operation of a charge pump by the control signal. CONSTITUTION: The circuit for controlling voltage includes a charge pump portion(70), a control portion(100) and an oscillating portion(50). The charge pump portion(70) is enabled according to the program signal(PGM) input from the outside and is composed of the first and second charge pumps(71,72). The control portion(100) compares the high voltage generated in the charge pump portion(70) with the reference voltage and controls the period of the signal output in the oscillator(50). The oscillating portion(50) generates the signal driving the charge pump portion(70) according to the signal input from outside and the signal(HVPP) output in the control portion(100).
Patent KR-20000049101-A (KR)
Inventor: REED STEVEN G
IPC: A61K48/00
Filed: 1997-10-07
Abstract: PURPOSE: Provided are generally detecting, treating and preventing Mycobacterium tuberculosis infection. More particularly provided are polypeptides comprising a Mycobacterium tuberculosis antigen, or a portion or other variant thereof, and the use of such polypeptides for diagnosing and vaccinating against Mycobacterium tuberculosis infection. CONSTITUTION: Provided are compounds and methods for inducing protective immunity against tuberculosis are disclosed. The compounds provided include polypeptides that contain at least one immunogenic portion of one or more M. tuberculosis proteins and DNA molecules encoding such polypeptides. Such compounds may be formulated into vaccines and/or pharmaceutical compositions for immunization against M. tuberculosis infection, or may be used for the diagnosis of tuberculosis.
Patent KR-20000053000-A (KR)
Title: Optical fiber terminations
Inventor: AGGARWAL ISHWAR D
IPC: G02B6/38
Filed: 1997-10-27
Abstract: PURPOSE: An optical fiber terminations is provided to prevent antireflection coatings from being cracked due to high temperature, caused by the difference in the coefficient of thermal expansion between the fiber and the surrounding epoxy in a conventional SMA connector, by employing an air gap in the chamber around the end of a fiber. CONSTITUTION: An optical fiber termination connector includes an elongated structure with a chamber, a fiber disposed in the chamber and spaced therefrom, a solid first material disposed in the chamber around the fiber, and an air gap in the chamber around the end of the fiber. The process includes the steps of locating a fiber in a chamber disposed vertically, with the end of the fiber extending beyond the lower portion of chamber; dipping a lower portion of the chamber into a first material in liquid form so that the first material enters the lower portion of the chamber to a level below an exit port located in the lower portion of the chamber; solidifying the first material disposed in and around the chamber and the fiber; above the solid first material; polishing the lower end of the fiber until it is flush with the chamber at the lower thereof; and removing the first material to form an air gap between the fiber and the lower portion of the chamber. The air gap is large enough to allow independent thermal expansion of the fiber.
Patent KR-20000069881-A (KR)
Title: 열가소성 폴리우레탄을 포함하는 압력 민감 접착제
IPC: C08G18/62
Filed: 1998-01-05
Abstract: 본 발명은 열가소성 폴리우레탄 및 점착 수지를 포함하는 압력 민감 접착제 조성물에 관한 것으로, 열가소성 폴리우레탄은 방향족 디이소시아네이트 및/또는 지환족 디이소시아네이트, 연쇄 연장제 및 중합체 디올 및/또는 수소화된 폴리디엔 디올 및 수소화된 폴리디엔 모노올에서 유도되며, 디올과 모노올의 수 평균 작용가는 1.2 내지 1.8 범위이다.  추가로, 본 발명은 압력 민감 접착제에 사용되는 열가소성 폴리우레탄 및 압력 민감 접착제를 함유하는 제품에 관한 것이다.
Patent KR-20000070751-A (KR)
Title: Pyrido[2,3-D]pyrimidines and 4-Aminopyrimidines as Inhibitors of Cellular Proliferation
IPC: A61P35/00
Filed: 1998-01-26
Abstract: This invention provides pyridopyrimidines and 4-aminopyrimidines that are useful for treating cell proliferatives disorders, such as cancer and restenosis. We have now discovered a group of 7,8-dihydro-2-(amino and thio)pyrido[2,3-d]pyrimidines and 2,4-diaminopyrimidines that are potent inhibitors of cyclin-dependent kinases (cdks) and growth factor-mediated kinases. The compounds are readily synthesized and can be administered by a variety of routes, including orally, and have sufficient bioavailability. This invention provides compounds of Formula (I) and Formula (II) where W is NH, S, SO, or SO2, R<1> includes phenyl and substituted phenyl, R<2> includes alkyl and cycloalkyl, R<3> includes alkyl and hydrogen, R<8> and R<9> include hydrogen and alkyl, and Z is carboxy. This invention also provides pharmaceutical formulations comprising a compound of Formula (I or II) together with a pharmaceutically acceptable carrier, diluent, or excipient therefor.
Patent KR-20000070847-A (KR)
Title: 연료공급장치
Filed: 1997-12-08
Abstract: 연료탱크(1)내에 배치된 인젝터에 연료를 압송하는 연료펌프(4)와 연료탱크 (1)내에 배치되고, 연료펌프(4)로부터의 연료의 잉여분을 인젝터에의 유료로로부터 잉여연료로서 연료탱크(1)내에 배출해서 연료의 압력을 조정하는 프레셔 레귤레이터(6)와, 연료펌프(4)와 프레셔 레귤레이터(6)을 연결하는 유로의 프레셔레귤레이터(6)보다 상류측에, 연료펌프(4)로부터 토출된 연료를 여과하는 여과엘레멘트(12)를 수용한 연료필터(5)를 구비한 연료공급장치에서, 여과 엘레멘트(12)에 아스를 취하기 위해 도전성 프로텍터(24)나 도전부재(25)를 갖는 접지장치를 구비하고 연료가 여과엘레멘트를 통과할때에 발생하는 정전기를 확실하게 방산시켜 안정되게 연료를 공급할 수 있는 연료공급장치.
Patent KR-20010073487-A (KR)
Title: A method of manufacture of complex color noodle using a plants
Inventor: DO DAE HONG
IPC: A23L7/109
Filed: 2000-01-15
Abstract: PURPOSE: A method for preparing noodle is provided, which has various tastes and colors by using the juices and pigments of diverse plants such as vegetables, fruits, a so on. CONSTITUTION: A method for preparing noodle using plants comprises the steps of: (i) adding water, sub-materials, the respective juices 5-10% of vegetables or fruits, and medical plants, and pigmenting infusion solution to starch and flour and kneading, and then spreading into a rectangle of 10-15cm thickness and; (ii) adjusting the thickness of dough, and then producing noodle with a noodle-making machine.
Patent KR-20000024065-A (KR)
Inventor: YUN IN SUN
IPC: H02K53/00
Filed: 2000-01-18
Abstract: PURPOSE: An auxiliary driving apparatus of a motor rotator is provided to reduce a power consumption of a motor by auxiliaryly driving the motor rotator by a mutual magnetism action of permanent magnets opposed to each other. CONSTITUTION: In an auxiliary driving apparatus of a motor rotator, an electronic coil(18) is installed in a housing(16) so as to receive a current from a DC power(14), and a rotator(20) is disposed at a cavity of the housing(16). A first magnetism part(22) is formed at one side of the rotator(20) and consists of a plurality of first permanent magnets(24) which are attached on a first disk plate(30). A second magnetism part(26) is disposed so as to be opposed to the first magnetism part(22), and consists of a plurality of second permanent magnets(28), which are attached on a second disk plate(36), for generating a mutual magnetism action together with the first permanent magnet(24). The first disk plate(30) is connected to the one end of the rotator(20), and the second disk plate(36) is fixed at a fixing member(34)
Patent KR-20010073859-A (KR)
Title: Visual Docking Guidance System And A Method
Inventor: LIM TAE YEONG
IPC: H04N5/30
Filed: 2000-01-21
Abstract: PURPOSE: A visual docking guidance system and a method for airplanes are provided to accurately guide the airplane toward a dock by calculating the current distance and angel, etc of the airplane through comparing simulation results and a captured real image. CONSTITUTION: The visual docking guidance system comprises an image detector(10), an image processor(20) and a display. The image detector(10) performs the image processing of 3D video data of an entering airplane using a CCD camera to capture an outline of the airplane. The image processor(20) makes the video signals detected by the video detector(10) to a database and compares the data in the database with stored airplane data to extract optimum values. The display part(30) displays calculation results such as distance, lateral deflection angle processed in the video processor(20).
Patent KR-20010083624-A (KR)
Title: Passive balancer for lubricationless pulse tube refrigerator
Inventor: JUNG JIN SU
IPC: F25B9/00
Filed: 2000-02-17
Abstract: PURPOSE: A passive balancer of a lubricationless pulse tube refrigerator is provided to enhance the entire stability of a lubricationless pulse tube refrigerator by supporting a passive balancer at the lower end of a drive unit of the refrigerator perfectly with nuts and to set the exact vibration by adjusting the refrigerator with fineness. CONSTITUTION: A passive balancer(17) is mounted at the lower end of a hermetic shell(11) of a drive unit to reduce the vibration of a lubricationless pulse tube refrigerator. To mount the passive balancer, at least one hexagonal nut(21) is connected to the lower end of a connecting shaft(14) to prevent a balancer body(19) from being separated from the connecting shaft and to function as a weight for controlling vibration. A thin support member(23) is protruded to an end of a nut body(22). When the nut is connected to the lower end of the connecting shaft, the support member is inserted into leaf springs(18) and the connecting shaft tightly through a connecting hole(20) of the balancer body. The support member supports the leaf spring in a radial direction effectively as well as supports the nut. The balancer body is supported with the perfect stability by the nut at the lower end of the hermetic shell. Therefore, the fine vibration of the passive balancer is controlled exactly. The vibration of the refrigerator is minimized.
Patent KR-20000030304-A (KR)
Inventor: WHANG YONG AN
IPC: H04M3/56
Filed: 2000-02-17
Abstract: PURPOSE: An interpretation service system is provided to selectively connect a client asking for the interpretation service to an exclusive interpreter and secure the data for charging the service by linking the client to the interpreter by a communication switch board and a communication manage board. CONSTITUTION: Interpreter groups(15) classified by languages are assigned telephone call numbers different from each other when the client selects and dials one of the telephone call numbers. A speaker phone(14) or a telephone set is connected to the communication switch board(3) via a communication interchange unit(2). The communication switch board(3) is coupled a PC telephone set(5) for a waiting interpreter which firstly reponses to a call from the board(3). The communication managing server(4) checks information of a transmitter, a receiver and communication time, and calculates an expense for the interpretation service.
Patent KR-20010084284-A (KR)
Title: Apparatus for picking up a memory module in a memory module test handler
Inventor: LEE GANG UN
IPC: H01L21/66
Filed: 2000-02-24
Abstract: PURPOSE: A memory module picking device is to simplify a working process and improve a working efficiency and to obtain a stability and reliability in a transfer process of a memory module. CONSTITUTION: A vertical support frame(24) of plate shape includes the first guide part(21) at its both sides and an incised part(23) at its center. A servo motor(20) is fixed to top of the support frame by a motor bracket to generate a rotational kinetic energy. A chuck up-down transfer(30) is mounted to a front surface of the support frame to slide vertically thereon. A Y-direction transfer(40) is mounted to a rear surface of the support frame with a distance by a spacer block(42). An energy conversion unit is arranged between the support frame and the Y-direction transfer to convert the rotational kinetic energy into a linear reciprocation energy and lift the chuck up-down transfer. A memory module picking assembly picks a memory module(D) from a tray(T). A bias unit tilts the memory module in a predetermined direction before the module is picked by the picking assembly. A memory module guide unit guides a side surface of the memory module when the module is picked by the picking assembly.
Patent KR-20010082864-A (KR)
Title: Domein search engine
Inventor: LEE SEONG GU
IPC: G06F17/30
Filed: 2000-02-21
Abstract: PURPOSE: A specialized domain search engine is provided to search the corresponding domain or the most adjacent domain rapidly by constructing a database system for searching a domain and referring to alphabets, a kind of a domain, a category of business, and an explanation. CONSTITUTION: For example, a user watched a domain, and suppose that the user memories only alphabets of "kos" and "stock" as a business category. The user inputs "kos" on an alphabet input window. The user empties a kind input window. The user input "stock" on a business category input window. The user empties an explanation window. The user input "¯or" or "¯and" on an option window. The user clicks a search icon. If the user selects "¯and" on an option window, all kinds of domains having "kos" as alphabets and "stock" as a business category are displayed. If the user selects "¯or" on an option window, all kinds of domains having "kos" as alphabets or "stock" as a business category are displayed. Thus, the user searches and clicks the corresponding domain for connecting to the homepage of the wanted site of the domain.
Patent KR-20010084644-A (KR)
Title: Semiconductor device and Method for fabricating the same
Inventor: KIM DONG SEOK
IPC: H01L21/283
Filed: 2000-02-28
Abstract: PURPOSE: A semiconductor device and a method of manufacturing the same are provided to guarantee sufficient process margin and to improve a characteristic of the device. CONSTITUTION: The semiconductor comprises a gate line formed on a semiconductor substrate, a gate sidewall formed at side area of the gate line, an impurity region formed on a side of the gate line, an insulating layer having a contact hole on the gate line, a conductive layer that has a wide centering at each contact hole and is between the insulating layers, an impurity region that is adjacent to the conductive layer, buried in the contact hole, and formed on a side of the gate line, and a contact plug layer connecting gate lines adjacent to each other.
Patent KR-20010087663-A (KR)
Title: Method of forming a contact constructure
Inventor: LEE JEONG HO
IPC: H01L21/8239
Filed: 2000-03-08
Abstract: PURPOSE: A method for forming a contact structure is provided to prevent a short-circuit of a contact plug and a gate electrode by minimizing a damage of a gate mask layer in a contact hole formation process. CONSTITUTION: A gate oxide layer(202), a gate electrode(204), and a gate mask layer(206) are formed on a semiconductor substrate(200). A gate pattern(208) is formed by etching the data mask layer(206), the gate electrode(204), and the gate oxide layer(202). A gate spacer(210) is formed at a side of the gate pattern(208). The first insulating layer(212) is formed on the whole surface of the substrate(200). A groove is formed by etching the first insulating layer(212) between the gate patterns(208). A contact pad is formed by filling the first conductive layer into the groove. The second insulating layer(216) is formed on the whole surface of the substrate(200). A contact hole for exposing the contact pad(214) is formed by patterning the second insulating layer(216). An insulating layer spacer(220) is formed on an inner face of the contact hole. A contact plug(222) is formed by filling the second conductive layer into the contact hole.
Patent KR-20000062999-A (KR)
Title: 다색성 분체 및 다색성 도장체
IPC: C09C1/00
Filed: 2000-03-23
Abstract: 본 발명은 관찰하는 방향에 따라 색조가 변화하는 다변색성 안료를 제공하는 것을 목적으로 한다. 
     이러한 목적을 달성하기 위한 본 발명에서의 다색성분체는 박편상 운모기판과 상기 운모기판에 피복된 복합산화물을 포함하고, 상기 복합산화물을 구성하는 금속으로 티타늄, 코발트, 알루미늄을 포함하는 것을 특징으로 한다.
Patent KR-20010097017-A (KR)
Inventor: KIM BEOM SIK
IPC: H01L21/285
Filed: 2000-04-19
Abstract: 본 발명은 감시 시스템의 모션 디텍션 설정방법에 관한 것으로, 촬영수단; 디지털 영상신호로의 변환수단; 상기 디지털 영상신호 저장수단; 상기 디지털 영상신호의 표시수단; 디텍션 영역설정수단; 및 디텍션 영역설정에 따른 영상신호를 비교하는 제어수단을 구비하는 감시 시스템의 모션 디텍션 설정방법에 있어서: (a) 상기 디텍션 영역설정수단을 이용하여 상기 모션표시수단의 화면상에 서로 평행한 적어도 2개의 라인을 형성시키는 단계; 및 (b) 상기 표시수단에 디스플레이 되는 상기 디지털 영상신호를 상기 저장수단에 선택적으로 저장시키기 위해, 상기 움직이는 물체가 상기 적어도 2개의 라인을 어느 한 방향으로 통과하는 경우에만 상기 저장수단이 작동되도록 상기 제어수단을 세팅시키는 단계;를 포함하는 것을 특징으로 한다. 본 발명에서 제공하는 감시 시스템의 모션 디텍션 설정방법은 외부센서 설치없이 카메라로부터 감시 시스템에 입력되는 비디오 영상만으로 침입자의 존재여부를 판단하여 시스템 설치비용을 줄임과 동시에 항상 주변 상황이 녹화되는 것이 아니라 움직이는 물체를 선택적으로 녹화시켜 메모리 비용을 절감할 수 있다.
Patent KR-20010097374-A (KR)
Inventor: OH JONG TAEK
IPC: G06Q50/00
Filed: 2000-04-21
Abstract: 1. 청구범위에 기재된 발명이 속한 기술분야 
     본 발명은 인터넷 접속장치와 서비스 서버를 이용한 원격지 모니터링 서비스 장치 및 그 방법과, 상기 방법을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체에 관한 것임. 
     2. 발명이 해결하려고 하는 기술적 과제 
     본 발명은, 인터넷 접속장치와 서비스 서버를 이용하여, 원격지의 연속적인 영상 및 음향 데이터의 수집 및 저장으로, 인증받은 사용자가 임의의 장소에서 실시간 모니터링 뿐만 아니라 과거의 데이터 검색까지 가능하게 하고, 선택적으로 원격지의 이상 상태를 감지하기 위한 원격지 모니터링 서비스 장치 및 그 방법과, 상기 방법을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체를 제공하고자 함. 
     3. 발명의 해결방법의 요지 
     본 발명은, 원격지 모니터링 서비스 장치에 있어서, 제어수단의 제어하에, 원격지의 영상 및 음향 데이터를 수집하기 위한 데이터 수집수단; 원격지 관리 제어 명령에 따라, 상기 데이터 수집수단을 제어하고, 수집된 영상 및 음향 데이터를 압축하기 위한 상기 제어수단; 압축된 상기 영상 및 음향 데이터를 인터넷을 통해 실시간으로 전송하기 위한 인터넷망 접속수단; 및 상기 원격지 관리 제어 명령을 발송하며, 상기 인터넷을 통해 실시간으로 전송되는 압축된 상기 영상 및 음향 데이터를 저장하고, 사용자의 인증 기능 및 허용된 데이터의 검색 기능, 압축된 데이터의 복원 및 상기 인터넷으로 검색하도록 다른 형식으로 압축하는 기능, 원격지의 이상 상태 감지 기능, 사용자 관리 기능을 수행하기 위한 원격지 관리수단을 포함함. 
     4. 발명의 중요한 용도 
     본 발명은 원격 모니터링 서비스 등에 이용됨.
Patent KR-20010100467-A (KR)
Inventor: JI JONG U
Filed: 2000-05-02
Abstract: 본 발명은 공기조화기의 콘트롤박스에 관한 것이다. 본 발명에 의한 콘트롤박스(10)에서는 그 상면과 하면을 형성하는 연결판(20,22)(24,26)을 각각 정면판(14)과 배면판(16)에 분리하여 형성하고, 각각의 연결판(20,22)(24,26)의 길이(a')를 측면판(12)의 폭(a)보다 작게 하였다. 그리고 상기 연결판에 각각 체결공(20,23)과 탄성체결편(25,27)을 형성하여 상기 연결판(20,22)(24,26)이 서로 탄성력에 의해 체결되도록 하였다. 이와 같은 본 발명에 의하면 상기 연결판의 길이(a')를 최소화할 수 있어, 전체적으로 재료의 양을 줄일 수 있고, 정면판(14)의 개방시에 상부연결판(20)이 함께 개방되므로 콘트롤박스(10) 내부로의 접근이 용이한 이점이 있다.
Patent KR-20010103323-A (KR)
Inventor: KIM MYEONG HO
Filed: 2000-05-09
Abstract: 본 발명은 층상 점토 광물 또는 층상 점토 화합물을 고분자 수지에 분산시킨  유·무기 나노 복합체의 제조방법에 관한 것으로, 특히 컴파운딩 방법에 의한 유·무기 나노 복합체의 제조방법에 있어서, 초임계 유체를 이용하여 연속적으로 제조하는 방법에 관한 것이다. 
     본 발명은 이를 위하여, 용융상태의 고분자쇄를 층상 점토 화합물의 층간으로 삽입시키고 이를 기계적 혼합에 의해 박리시켜서 제조되는 고분자 매질에 유기화된 층상 점토 화합물이 분산된 나노 복합체의 제조방법에 있어서, a) 고분자 매질 및 유기화된 층상 점토 화합물을 용매 주입부, 및 용매 회수부 또는 탈기부가 설비된 연속 혼련기에 투입하는 단계; 및 b) 상기 연속 혼련기에 저분자량 용매를 주입하여 용매의 초임계 상태에서 고분자 매질과 유기화된 층상 점토 화합물을 혼련하는 단계를 포함하는 나노 복합체의 연속 제조방법을 제공한다. 
     본 발명의 나노 복합체 제조방법은 상기 저분자량 용매를 고분자 매질과 유기화된 층상 점토 화합물에 맞추어 선정하고, 연속 혼련기 내의 압력 변화와 혼련정도를 조절하면서 원하는 형태로 분산을 제어할 수 있는 상업적으로 유용한 연속 제조방법이다.
Patent KR-20010039599-A (KR)
Inventor: ARAMATA MIKIO
IPC: H05K3/32
Filed: 2000-05-12
Abstract: PURPOSE: Provided are new and useful conductive particles which include improved heat resistance, improved conductivity and improved conductivity stability, and methods of making them and rubber/plastic compositions containing them. CONSTITUTION: A conductive powder comprises an organic silicon polymer layer and a metal layer are successively formed on surfaces of particles, wherein the metal layer preferably includes a first metal layer and a second metal layer. Another conductive powder comprises a partially or entirely ceramic layer of organic silicon polymer and a metal layer which are successively formed on surfaces of particles, wherein the metal layer preferably includes a first metal layer and a second metal layer. A process for preparing a conductive powder, comprises the steps of (1) treating particles each having a surface with an organic silicon polymer having reducing effect to form a silicon polymer layer on the particle surface; (2) treating the particles with a salt of a metal having a standard oxidation-reduction potential of at least 0.54 volt, thereby depositing a colloid of the metal on the organic silicon polymer layer; (3) and thereafter, treating the particles with an electroless plating solution, thereby depositing a metal layer on the outermost surface of the particles. Another process for preparing a conductive powder, comprises the steps of: (1) treating particles each having a surface with an organic silicon polymer having reducing effect to form an organic silicon polymer layer on the particle surface, (2) treating the particles with a solution containing a salt of a metal having a standard oxidation-reduction potential of at least 0.54 volt, thereby depositing a colloid of the metal on the organic silicon polymer layer, (3) effecting electroless plating on the particles with the metal colloid serving as a catalyst, to deposit a first metal layer on the outer surface of the organic silicon polymer layer, and (4) effecting plating on the particles to form a second metal layer on the first metal layer.