baber/WOPTO huggingface dataset:
Patent KR-20020044815-A (KR)
Title: Mirror switch apparatus
Inventor: KIM CHANG YEONG
IPC: B60R1/00
Filed: 2000-12-06
Abstract: PURPOSE: A mirror switch device of a vehicle is provided to use the mirror switch device as a multifunctional switch by constituting the mirror switch device capable of performing a various functions such as a mirror selection, a mirror adjustment, a mirror folding, or a mirror heater, etc. through one knob. CONSTITUTION: A mirror switch device of a vehicle comprises a printed circuit substrate(55) including a mirror operating circuit, a switch-operating unit(60), a plurality of switch connectors, and a contactor. The printed circuit substrate(55) is fixed between a switch body(51) and a connector housing and connected to an outer circuit, and exposed at an upper side of the switch body. A lower portion of the switch-operating unit is supported slidably at the connector housing, and an intermediate portion thereof is connected by a universal joint, thereby rotating or moving an upper end thereof in an up/down and right/left direction. The switch connector is connected at the upper portion of the printed circuit substrate.
Patent KR-20020045137-A (KR)
Title: wind-turbine for non-power discharge
Inventor: SHIN HYUN HO
IPC: F23J15/00
Filed: 2000-12-08
Abstract: PURPOSE: A generator using an induced draft fan of exhaust gas is provided to establish energy saving building by generating electricity using rotating force of the induced draft fan of exhaust gas or wind. CONSTITUTION: A generator includes an induced draft fan(11) of exhaust gas between an upper supporting plate(12) and a lower supporting plate(13) with a middle hole(14), the lower supporting plate having a plurality of wings. A gear(17) is fixedly applied outside a cylindrical rotator(16) applied to the lower supporting plate. The cylindrical rotator is installed outside a cylindrical fixing body(23) integrally formed with a seat(22) fixed to an upper portion of a discharging duct(21). Between the cylindrical rotator and the fixing body is formed a bearing. The gear is connected with a shaft gear of the generator through a belt or chain. A condenser(35) and an inverter(36) are applied to one side of the generator.
Patent KR-20010016430-A (KR)
Title: Separated and combined skirts of the women and pants of the peoples is connected top cloths hook
Inventor: KIM KWANG HO
IPC: A41F17/00
Filed: 2000-12-09
Abstract: PURPOSE: Provided is a separation type or coupling type loop hanger for linking skirt for female and slacks for both male and female to jacket. The loop hanger prevents the jackets and slacks and skirt from coming out outside and improves one's health due to jades and magnetic therein. CONSTITUTION: A separation type or coupling type loop hanger for linking skirt for female and slacks for both male and female to jacket is composed of a spring loop to be inserted inside a belt and a spring plate to be inserted into a jacket. The loop hanger has magnetic and jades for improving one's health.
Patent KR-20020047542-A (KR)
Title: Wireless Local Area Network RF Front-End Transceiver
Inventor: JUNG HAE WON
IPC: H04B1/40
Filed: 2000-12-13
Abstract: PURPOSE: A wireless radio frequency front end transceiver device is provided to stop a transmission mode when operating a reception mode by using a power down mode. CONSTITUTION: A local signal generating unit(270) includes the first and second local signal generators(272,276) which generates the first and second local signals having predetermined bandwidths at the center of 900MHz and 4.35GHz. A first upstream change unit(230) changes data signal inputted from a baseband into an intermediate frequency signal by using the local signal of 900MHz bandwidth from the first local signal generator(272). A second upstream change unit(240) combines the signal changed by the first upstream change unit(230) with a local signal of 4.35GHz bandwidth generated by the second local signal generator(276) and then changes the combined signal into RF signal. A band-pass filter(210) removes noise signals in the RF signal and the data signal received by an antenna(200). A transmission/reception mode selection switch(220) selects the one whether the output data of the second upstream change unit(240) is transmitted or the received data signal is inputted. A first downstream change unit(250) combines the data signal inputted from the band-pass filter(210) with a local signal of 4.35GHz bandwidth generated by the second local signal generator(276) and then changes the combined signal into an intermediate frequency signal. A second downstream change unit(260) changes the inputted intermediate frequency into a baseband I/Q(In-phase/Quadrature-phase) signal by using the local signal of 900MHz bandwidth generated by the first local signal generator(272).
Patent KR-20020048765-A (KR)
Inventor: LEE SANG BOK
IPC: H01J29/76
Filed: 2000-12-18
Abstract: PURPOSE: A deflection yoke is provided to prevent a focus error from a screen by combining firmly a ring core CG unit with a rear cover of a coil separator. CONSTITUTION: A coil separator is formed with a screen portion and a rear cover(12). A horizontal deflection coil and a vertical deflection coil are formed on an inner circumference and an outer circumference of the coil separator in order to form horizontal deflection magnetism and vertical deflection magnetism. A ring core CG unit(20) is combined with the rear cover(12) in order to perform a CG control operation of a screen. A combination portion is formed at a position corresponding to the rear cover(12) and the ring core CG unit(20). The combination portion is formed with an anti-rotation groove(33), an anti-escape groove(32), an anti-rotation hook(30), and an anti-escape hook(31).
Patent KR-20020050452-A (KR)
Title: A facilities for refining waste acid and its refining method
Inventor: BANG JEONG HUI
IPC: C23G1/36
Filed: 2000-12-21
Abstract: PURPOSE: Provided is a recovery system for waste hydrochloric acid which controls the temperature of circulating NaOH solution under 60deg.C to prevent water from being evaporated and keep discharge concentration of HCl to be low so that it is widely useful in recovering the waste hydrochloric acid. CONSTITUTION: The recovery system for waste hydrochloric acid comprises the parts of: a calciner(210) which pyrolyzes liquid iron chloride and iron oxide into Cl2 gas; an absorption tower(230) which recovers the discharged Cl2 gas as HCl solution; a washing tower(250) which includes a circulation pipe(251) to supply neutralization liquid and a filling layer(253) to neutralize the unrecovered HCl gas and eliminate; and a cooling facility which includes a heat exchanger(255) to lower the temperature of neutralization liquid, a cooler(256) to cool covalent discharged from the heat exchanger at normal temperature, a coolant pump(257) to supply coolant for the heat exchanger again and a coolant storage bath(258) to supplement coolant to the cooler.
Patent KR-20020051400-A (KR)
Title: Display method for flip type mobile communication device
Inventor: LEE YEONG MIN
IPC: H04B1/38
Filed: 2000-12-22
Abstract: PURPOSE: A screen display system in a flip type mobile terminal and a method thereof are provided to maximize a user's convenience by making preset major information displayed at a screen portion, where the user can see, in case that the flip gets closed, and enabling him/her to manipulate it without using the keypad. CONSTITUTION: A screen display system is composed of a mobile terminal(20) and a server(30). The mobile terminal(20) transfers the open/close status information of the flip to an internal browser so that it can be transferred to the external. The server(30) receives the open/close status information of the flip and provides relevant requested information. The server(30) consists of a database(32) and a browser client(31). The database(32) stores information. The browser client(31) receives the open/close status information of the flip from the mobile terminal(20), requests information to the database(32) through it, and provides information received from the database(32) to the mobile terminal(20). The mobile terminal(20) is composed of a structure(22) and a browser application program(21). The structure(22) detects the open/close status of the flip.
Patent KR-20020053509-A (KR)
Title: Head retract circuit in hard disk drive
Inventor: CHO HYEON MIN
IPC: G11B21/02
Filed: 2000-12-27
Abstract: PURPOSE: A head return circuit of a hard disk drive is provided to automatically change to a constant voltage mode from a constant current mode at the moment when a counter electromotive force of a voice coil motor becomes '0' or the first bouncing starts to occur, thereby magnifying the size of an initial constant current to prevent a head return failure. CONSTITUTION: An SPM(Spindle Motor)(2100) rotates a disk. A rectifier(2200) rectifies a current generated by a counter electromotive force, and outputs the current. A cathode terminal of a diode(D4) is connected to an output of the rectifier, and an anode terminal thereof is connected to a supply voltage(Vcc). A capacitor(C1) is connected between the cathode terminal and a ground. A collector terminal of a transistor(Q1) is connected to the cathode terminal. A constant current source(Icrt) is connected between the cathode terminal and an emitter terminal of the transistor. One end of a VCM(Voice Coil Motor)(2300) is connected to the emitter terminal. A VCM driver(2400) is connected between the emitter terminal and the other terminal of the VCM. A collector terminal of a transistor(Q2) is connected to the other terminal of the VCM, and is grounded with the emitter terminal. A resistor(R1) is connected between a base terminal of the transistor(Q1) and the ground. A resistor(Riret) is connected between the resistor(R1) and the cathode terminal. A switch(2600) receives a head return signal(Retract), a temperature rising signal(TSD), a power on reset signal(POR), and controls current streams. One terminal of a capacitor(C2) is grounded. A constant current source(Icret) is connected between the other terminal of the capacitor(C2) and an output terminal of the switch. A noninverting terminal of an operation amplifier(2500) is connected to the other terminal of the capacitor(C2), and an inverting terminal is connected to a reference voltage(Vref1), then an output terminal is connected to the base terminal.
Patent KR-20020054861-A (KR)
Title: Method for Fabricating of Semiconductor Device
Inventor: SHIN IL JAE
IPC: H01L27/10
Filed: 2000-12-28
Abstract: PURPOSE: A semiconductor device is provided to prevent a resistor layer from being damaged in a subsequent etch process, by overcoating a floating gate on a poly resistor layer as the resistor layer. CONSTITUTION: An active region and an inactive region are defined in a semiconductor device. A field oxide layer(12) is formed in the inactive region of the semiconductor device. The poly resistor layer is formed on the field oxide layer. The floating gate(15b) protects the poly resistor layer, formed on the poly resistor layer. A gate electrode is formed on the active region. A source/drain region is formed at both sides of the gate electrode. An interlayer dielectric(16) is formed on the entire surface including the gate electrode, having a contact hole(19) in the resistor layer. A metal interconnection is connected to the poly resistor layer through the contact hole.
Patent KR-20020056000-A (KR)
Title: X-ray Detecting Device and Method Fabricating The Same
Inventor: KIM IK SU
IPC: G01N23/04
Filed: 2000-12-29
Abstract: PURPOSE: A thin film transistor for detecting x-ray and a making method thereof are provided to prevent the cutting of a ground line on the first transparent electrode due to an irregular surface of the first transparent electrode. CONSTITUTION: In the x-ray detection device, each of x-ray detecting cells is arranged at an intersection between each detecting data line(60) and each gate line(53). The x-ray detection device includes a ground electrode, a capacitor electrode, and a pixel electrode(55). The ground electrode is connected in a row direction to each x-ray detecting cell, and a ground voltage is supplied to the ground electrode. The capacitor electrode is connected to the ground electrode and commonly connected to the x-ray detecting cells being adjacent in a row direction. The pixel electrode(55) is formed in each x-ray detecting cell. In the method, the first transparent electrode(75) is formed along the data line(60) and the ground line(72) to overlap with the gate line(53). Therefore, the cutting of the ground line(72) is prevented. Further, the resistance of the ground line(72) can be reduced by connecting the first transparent electrodes(75).
Patent KR-20020056736-A (KR)
Title: clutch of transmission for vehicle
Inventor: PARK GIL JE
IPC: F16D13/46
Filed: 2000-12-29
Abstract: PURPOSE: A manual transmission clutch is provided to simply control the power with respect to an input shaft by a ball and a spring plate instead of a relief bearing, thereby reducing the inner space of the clutch and increasing the lay-out efficiency of various parts. CONSTITUTION: A manual transmission clutch includes a clutch disc(6) positioned to a side of a flywheel(2) and connected to an input shaft(4) of the manual transmission, a pressure plate(8) for pressing the clutch disc to contact the side of the flywheel, a diaphragm spring(10) having a predetermined elasticity for applying pressing force to the pressure plate, a release fork(20) advancing toward the diaphragm spring by an end, and a ball(26) disposed at an end of the release fork for pushing the diaphragm spring to block the power transmission toward the input shaft.
Patent KR-20020057099-A (KR)
Title: The structure of ventilation motor assay for microwave oven
Inventor: KIM SU HWAN
IPC: H05B6/80
Filed: 2000-12-30
Abstract: PURPOSE: Air flow is formed variously to make intake and exhaust structure of a microwave oven diverse, thereby improving productivity and reducing cost. CONSTITUTION: A vent motor assembly comprises a vent motor(102) having a first and second output shaft in both ends. A cyroko fan(114) interacts with the first output shaft(124'), and intakes air to the first output shaft direction and discharges it to vertical direction of the shaft. A radial fan(124) interacts with the second output shaft, and intakes air to the vertical direction of the second output shaft and discharges it to the second output shaft direction.
Patent KR-20010021667-A (KR)
IPC: F02D9/02
Filed: 1998-06-24
Abstract: An apparatus for moving a valve flap, especially in the air intake duct of an internal combustion engine, including a vacuum box (20) which executes a longitudinal movement in dependence on the application of a negative pressure or vacuum, and the longitudinal movement of the vacuum box is transmitted via a coupling rod (16) to a traverse rod (15), which in turn is connected to an actuating lever (13) for the valve flap (11). The coupling rod (16) and traverse rod (15) system allows the vacuum box to be arranged in any position relative to the valve flap (11). The apparatus can be simplified further by combining the diaphragm disk (27) with the coupling rod (16) to form a single, integral part. In this case, a force is exerted eccentrically on the vacuum box. The eccentrically exerted force can be compensated by the diaphragm having a shape other than a round contour.
Patent KR-20010022708-A (KR)
Title: 약물 수송에 이용할 수 있는 생분해가능한 주사용 블록공중합체 겔
IPC: C08G63/06
Filed: 1998-08-08
Abstract: 온혈 동물에게 생분해가능한 고분자 매트릭스내에 포함된 약물을 장관외 투여하기 위한 시스템 및 그 방법에 관한 것으로 이 시스템은 수용성 액체로 투여되나, 동물의 체내에서는 제어된 방식으로 약물을 방출하는 하이드로겔 데포우를 형성한다.  공중합체는 이것이 투여될 동물의 체온이상의 온도에서 겔/졸 상 전이를 하여, 용액 상태에 있다가 체내로 투여되면, 온도가 체온수준으로 내려가 하이드로 겔을 형성한다.  중합체는 (i) 폴리(α-옥시산)으로된 소수성 A 공중합체; (ii) 폴리(에틸렌 옥시드)로 구성된 친수성 B 중합체로 구성된다.  약물은 공중합체로부터 제어된 방식으로 방출되고, 중합체는 생분해되어 비-독성 산물로 된다.  겔/졸 전이 온도 및 분해 속도는 폴리(α-옥시산) 및 폴리(에틸렌 옥시드) 중합체 블록 성분의 분자량 및 농도를 적절히 선택하여 조절할 수 있다.
Patent KR-20010032416-A (KR)
Title: 양방향성 광링크의 크로스토크 감소
IPC: H04B3/32
Filed: 1998-11-05
Abstract: 본 발명은 동시적인 그리고 양방향성의 광전송을 위한 통신링크에서의 크로스토크 감소 방법 및 장치에 관한것이다. 크로스토크를 감소하기위해, 두개의 상이한 광파장 및 두개의 상이한 전기 반송파 주파수가 이용된다. 관심있는 적용은, 컴퓨터 등의 다양한 정보 처리 시스템에서의 광적 상호접속을 위한 시스템 및 광기반 가입자 접근 시스템을 포함한다.
Patent KR-20010033236-A (KR)
Title: 항피코나바이러스 화합물, 이의 용도 및 제조방법
IPC: C07K5/027
Filed: 1998-12-15
Abstract: 본 발명의 피코나바이러스의 3C 프로테아제 억제제는 화학적인 합성과정을 통하여 수득할 수 있으며, 이는 피코나바이러스의 3C 프로테아제의 생물학적 활성을 억제 또는 차단하게 된다.     본 발명에 따른 화합물은 물론, 이러한 화합물이 함유된 약제학적 조성물은 1종 또는 그 이상의 피코나바이러스에 의해 감염된 환자 또는 숙주의 치료에 적합한 것이다.     또한, 본 발명에 따른 신규한 피코나바이러스의 3C 프로테아제 억제제를 제조하기 위하여, 몇 가지 새로운 제법과 중간체가 사용될 수 있다.
Patent KR-20010034020-A (KR)
Title: 새들이 날아드는 것을 방지하는 장치
IPC: A01M29/26
Filed: 1999-04-23
Abstract: 새들이 날아드는 것을 방지하는 장치는 새들이 싫어하는 파동을 이용하여 강력하고 광범위하게 이용될 수 있다. 새들이 날아드는 것을 방지하는 장치는 막대기축에 의해 지지되는 구체와, 구체의 표면에 있고 새들이 싫어하는 파동을 생성하는 송파장치와, 구체표면에 있는 날개판과, 송파장치에 동력원을 공급하는 태양전지로 구성되며 구체표면에 있는 송파장치는 전자음파, 특히 초음파를 생성한다.
Patent KR-20010041807-A (KR)
Title: 스티렌 중합체로 제조된 중합체 혼합물
IPC: C08J5/00
Filed: 1999-03-03
Abstract: 중합체 혼합물은 
     P1) 비닐방향족 단량체로 제조된 경질 블록 S 및, 디엔 및 비닐방향족 단량체로 구성된 랜덤 연질 블록 B/S로 구성되며, 적어도 블록 구조물 S-B/S-S를 함유하고, 디엔 함량이 50 중량% 미만이며, 블록 B/S로부터 형성된 연질층의 비율이 적어도 60 중량%인 (각 경우에서 전체 블록 공중합체를 기준으로 함) 탄성체 블록 공중합체 1 내지 85 중량%, 
     P2) 비닐방향족 단량체 및 디엔으로 제조되며 P1)과는 다른 블록 공중합체 5 내지 89 중량%, 
     P3) 유리질-투명성의, 또는 충격-변형의 폴리스티렌 또는 그의 혼합물 10 내지 94 중량%, 및 
     P4) 기타 첨가제 0 내지 84 중량% 
     를 포함하며, 성분 P1) 내지 P4)의 총량이 100%이다.
Patent KR-20010074474-A (KR)
IPC: A61P35/02
Filed: 1999-04-05
Abstract: The present application is directed to several newly prepared semi-synthetic ecteinascidin (Et) species, designated herein as Boc-Et 729, Et 875, and Et 1560. The physical properties of these compounds, their preparation and bioactivities are also reported.
Patent KR-20010052436-A (KR)
Title: 병렬 데이터 처리
IPC: G06F9/38
Filed: 2000-03-09
Abstract: 데이터 처리 장치(DPA)는 동작(O)을 병렬로 수행하는 다수의 데이터 처리기(P)를 포한한다.  처리기(P)에 의해 수행되는 동작(O)은 데이터 처리기(P)에 공급되는 명령어 워드(IW)에 의해 정의된다.  데이터 처리 장치(DPA)는 명령어 워드 구성 소프트웨어(IWSC)에 근거하여 명령어 워드의 합성어(VLIW)를 만드는 제어 처리기(CP)를 포함한다.  명령어 워드의 합성어(VLIW)는 병렬로 수행되는 동작(O)을 정의한다.  명령어 워드 구성 소프트웨어의 기억장치는 일반적으로 VLIW의 기억장치가 필요로 하는 메모리 공간보다 더 작은 메모리 공간을 필요로 할 것이다.  이것이 제공하는 비용 절감은 명령어 워드의 합성어를 만드는 제어 처리기와 관련된 추가 비용보다 더 가치가 있을 것이다.  따라서, 전술한 데이터 처리 장치는 더 나은 비용 효율을 산출한다.
Patent KR-20010034905-A (KR)
Title: 용기들의 제조에 사용하는 장치 및 방법
IPC: B31B50/00
Filed: 1999-09-17
Abstract: 용기 본체의 외주에 슬리브를 조합하여 단열 용기를 제조하는 제조 장치로서, 상기 용기 본체의 단부 에지에 형성된 컬부를 받아들이는 컬 받이 부재 및 상기 용기 본체의 측벽을 그 내측으로부터 받아들이는 측벽 받이 부재를 구비한 용기 지지구와, 상기 용기 본체의 상기 컬부를 상기 컬 받이 부재에 눌러 변형시키는 컬 가공 장치와, 상기 용기 본체의 상기 측벽을 상기 측벽 받이 부재에 눌러 변형시키는 리브 가공 장치와, 상기 컬 가공 장치 및 상기 리브 가공 장치에 의한 가공을 각각 받은 상기 용기 본체의 외주에 접착제를 도포하는 접착제 도포 장치와, 상기 접착제가 도포된 상기 용기 본체의 외주에 상기 슬리브를 씌우는 슬리브 공급 장치를 구비하고 있다.  이에 따라, 용기 본체의 컬부 가공이나 측벽에 대한 리브 등의 가공과, 이들 가공을 받은 용기 본체와 슬리브의 접합이 동일 장치 내에서 계속하여 행해지므로, 단열 용기를 효율적으로 제조할 수 있다.
Patent KR-20010053268-A (KR)
IPC: C01B3/38
Filed: 1999-06-23
Abstract: The present invention relates to a process for the catalytic partial oxidation of a hydrocarbonaceous feedstock, which process consists of contacting a feed consisting of the hydrocarbonaceous feedstock and an oxygen-containing gas with a catalyst having metals of Group VIII of the Periodic Table of Elements, wherein the Group VIII metals are at least rhodium and iridium in intimate association with each other.
Patent KR-20020057665-A (KR)
Title: Washing machine and of the same washing time setting method
Inventor: LEE SANG SU
IPC: D06F33/02
Filed: 2001-01-03
Abstract: PURPOSE: A washing machine and a method for setting a time for stroke is provided to change a stroke unit time according to the instructions of a user and display the stroke in operation, thereby increasing the satisfaction of the user. CONSTITUTION: A washing machine includes a load part(140) including a motor for driving inner and outer tubs and a pulsator, and water supplying and draining valves, a key input part(100) for inputting instructions of a user, a readable/writable storing part(160) for storing washing machine operation algorithm, a display part(150) for displaying functions and operation states of the washing machine and a stroke time set by the user, an interface part(120) for downloading the stroke time set by the user from an external device, and a system microcomputer(170) for controlling the above parts for storing the stroke time transmitted via the interface in the storing part, carrying out a corresponding stroke according to the set stroke time, and displaying the corresponding stroke in the display part.
Patent KR-20020059564-A (KR)
Title: Electronic Commerce Method using Discount Sale Information
Inventor: LEE JUNG KU
Filed: 2001-01-06
Abstract: PURPOSE: A method for an electronic commerce using discount selling information is provided to buy a commodity as a discounted price by synthesizing discount selling information being performed in a local area or throughout the country and supplying the discount selling information through the Internet. CONSTITUTION: A buyer connects to a main server web site(s200), and clicks a corresponding local server classified according to local areas(s210). Information of a discount selling company name and a selling term displayed on an initial screen of the local server is searched(s220). If the buyer clicks a discount selling company for a purchase out of the discount selling companies displayed on the screen(s230), an electronic handbill linked with or registered to the local server is displayed on a buyer computer(s240). The buyer searches the handbill supplied by the local server and selects a purchase item and amount thereof out of discount selling items(s250). The buyer pays a purchase price corresponded to the selected purchase item and amount to the main server(s260). The main server supplies purchase information to the discount selling company(s270). The discount selling company delivers the purchase item and amount to the buyer(s280).
Patent KR-20010025710-A (KR)
Title: Sort-crusher for food waste
Inventor: JUNG JAE DEOK
IPC: B02C23/08
Filed: 2001-01-19
Abstract: PURPOSE: A screen crusher of food waste is provided, which can select foreign material and crush it simultaneously without a transfer device and a storage tank, thereby reducing emission of fine dust and bad-smelling gas, shortening the operation time, and enabling easy and safe operation. CONSTITUTION: The screen crusher(1) comprises the followings: (i) a feeding hopper(22) for feeding waste to the screen crusher(1); (ii) a transfer screw(20) installed beneath the hopper(22) for sending the waste to a fixed drum(30); (iii) a motor(40) for driving the transfer screw(20); (iv) a fixed drum(30) that has many fixed knifes(34) fixed at its top, many perforated screens(36) at its bottom and many crushing plates; and (v) a discharge transfer device(50) for discharging the waste outside.
Patent KR-20020069977-A (KR)
Title: Color titanium-zirconium alloy and method for manufacturing the same
Inventor: KIM U IL
IPC: C25D11/34
Filed: 2001-02-28
Abstract: PURPOSE: An alloy of colored titanium and zirconium and its preparation method are provided, to improve the vividness of color compared with that of a Ti alloy and to enhance the abrasion resistance. CONSTITUTION: The method comprises the steps of polishing and washing a material to prepare a material where an alloy of colored titanium and zirconium is coated; surface treating the material by ion plating or sputtering to evaporation-deposit a titanium and zirconium alloy on the surface of the material; and treating the material by the anode oxidation method to form an oxide coating expressing various color. In the anode oxidation method, the electrolyte solution comprises 0.1-5 mol/L of phosphoric acid, 0.1-5 mol/L of sulfuric acid, and optionally cobalt sulfate (II), nickel sulfate (II), cupric sulfate (II), chromium sulfate (III), ferric sulfate (III), aluminum sulfate and zinc sulfate.