baber/WOPTO huggingface dataset:
Patent KR-20010077231-A (KR)
Title: Device for adjusting mounting angle of liquid crystal display in refrigerator
Inventor: NOH YEONG HUN
IPC: F25D23/00
Filed: 2000-02-01
Abstract: PURPOSE: An apparatus is provided to achieve an improved use convenience and allow users to enjoy clear screen by allowing users to adjust installation angle of an LCD. CONSTITUTION: An apparatus comprises a liquid crystal display(10) arranged at the front surface of the refrigerator door in a manner as to be rotatable centering from a hinge axis; a motor(30) arranged at the rear surface of the refrigerator door; and a motion converting unit coupled between the liquid crystal display and the motor so as to convert the rotating motion of the motor into a linear motion. The motion converting unit includes a driving gear(40) coupled to the shaft of the motor; and a converting gear(50) engaged with the driving gear, and which converts the rotating motion of the motor into a linear motion. The driving gear and the converting gear are installed in such a manner that shafts of gears are arranged to be parallel or perpendicular with each other.
Patent KR-20010077265-A (KR)
Title: A Method of Fabricating SRAM Devices having Resistor of High Resistence
Inventor: KANG GYEONG NAM
IPC: H01L27/11
Filed: 2000-02-01
Abstract: PURPOSE: A method for manufacturing a static random access memory(SRAM) having a high resistance material is provided to prevent resistance of the high resistance material from being decreased, by making an oxide layer as an impurity diffusion barrier of a predetermined thickness exist before a high temperature process and after an ion implantation process. CONSTITUTION: Impurities are doped into a partial region of polysilicon patterns simultaneously manufactured so that the polysilicon patterns are used as conductive wires while other regions of the polysilicon patterns are protected by a doping mask to be used as a high resistance material. A native oxide layer of a predetermined thickness exists on the polysilicon pattern in an exposed space before a high temperature process is performed.
Patent KR-20010086684-A (KR)
Title: Method for modifying coma aberration of an exposing apparatus
Inventor: SHIN HYE SU
IPC: H01L21/027
Filed: 2000-03-02
Abstract: PURPOSE: A method for compensating coma aberration is to reduce asymmetry of a pattern and variations of the pattern such as shift using a selected phase shift mask. CONSTITUTION: It determines a pattern variation happened when a non-phase shift mask including a transmitting region(R1l,R1c,R1r) and a shielding region is used at a photolithography process. As any selected region of the transmitting region is covered by a phase shift layer, a selected phase shift mask indicate of a pattern variation opposed to the pattern variation is formed on the selected region. The photolithographic process uses the selected phase shift mask, in the stead of the non-phase shift mask. The step of forming the selected phase shift mask comprises the steps of: covering the selected region with a phase shift layer to form the phase shift mask; determining the pattern variation happened when the phase shift mask is used; and repeating the steps until the determined pattern variation becomes to be opposed to a pattern variation happened by the coma aberration.
Patent KR-20000049458-A (KR)
Inventor: KIM MIN KI
IPC: A23L33/00
Filed: 2000-03-23
Abstract: PURPOSE: A health food for liver improves the function of liver, and helps to recovery fatigue and remove accumulated feces by using only crude drugs which are good for liver without adding separated additives such as wheat powder, and making in the ball type to make carrying conveniently and taxing and absorbing easily. CONSTITUTION: A health food improving the function of liver is prepared by mixing powdered medicine with water and stirring well for the starch of powdered medicine to emit to making powdered medicine paste; mixing and kneading the powdered medicine paste with sugar liquid of licorice and artemisiae capillaris powder; and forming the dough in the ball type.
Patent KR-20010088779-A (KR)
Title: It is used to help rid odors.
Inventor: CHOI YOUNG SIL
IPC: A61L9/01
Filed: 2000-03-21
Abstract: PURPOSE: A deodorant obtained by mixing bentonite and zeolite is provided, which is capable of expressing high deodorizing performance, excellent in persistency of deodorizing effects and preservation stability. CONSTITUTION: The deodorant is prepared by mixing bentonite and zeolite in a ratio of 50:50. The deodorizer can be made in various shape and used in refrigerators, automobiles, restaurants and hotels.
Patent KR-20000071499-A (KR)
IPC: G02F1/133
Filed: 2000-03-28
Abstract: 본 발명의 액정 표시 장치는, 주전극을 갖는 주기판; 대향전극을 갖는 대향기판; 주기판과 대향기판간에 끼워진 액정재료; 및 1프레임내에서 상기 주전극에 인가되는 주전극전압과 상기 1프레임내에서 거의 연속적으로 변화하는 대향전극전압간의 전위차에 의해 상기 액정재료의 응답개시시간을 제어하고, 상기 주전극전압의 크기에 따라 상기 액정 표시 장치의 투과율을 변화시키기 위한 제어부를 구비하고 있다.
Patent KR-20000036839-A (KR)
Inventor: HEO JAE BOK
IPC: G06Q50/22
Filed: 2000-03-30
Abstract: PURPOSE: An electronic prescription transferring method is provided to set up for the doctor to prescribe a medicine on the web, which is then transmitted to the chemist and then to the patient so that the patient can purchase the correct medicine. CONSTITUTION: A system where the Doctor Computer, Chemist Computer and Patient Computer are connected through a network system. A doctor diagnoses a patient and issues an electronic prescription when requested by the patient. The Doctor Computer logs into the Server Computer and issues an electronic prescription. The Server Computer saves and stores the prescription and transmits this message to the Chemist Computer. The Chemist Computer logs into the Server Computer and searches for any electronic prescription issued by the doctor. The Chemist Computer prepares the medicine according to the prescription and announces that the medicine is ready. The medicine is delivered to the patient. The result is stored in the Server Computer and the entire process terminates.
Patent KR-20010094578-A (KR)
Title: Method of controlling overload in load balancing AIN system
Inventor: KIM JONG JU
IPC: H04M3/22
Filed: 2000-03-31
Abstract: PURPOSE: An overload control method in a load sharing intelligent network system is provided to offer an overload control method in an intelligent network system having an N+1 structured service control system. CONSTITUTION: If a detection timer wakes, an SMP(Service Management Point) extracts measurement values from monitoring data by SCPs(Service Control Points)(S1). The SMP executes the sampling and averaging of the measurement values(S2). The SMP fixes overload levels for the average of the measurement values and extracts the maximum level(S3). In case that an overload cause is by call congestion, the SMP determines overload types, such as critical, warning, minor, major, normal, etc., for the whole of SCPs(S5). In case that an overload type is critical, the SMP informs a service manager of overload monitoring information through a service management GUI and judges whether all the SCPs are overloaded(S6,S7). In case that all the SCPs are overloaded, the SMP executes call gapping(S8). If all the SCPs are not overloaded, the SMP executes load balancing(S9).
Patent KR-20000077038-A (KR)
Title: 디지털 오실로스코프용 연속 응답 및 예상 자동 셋업 기능
IPC: G01R13/20
Filed: 2000-04-18
Abstract: 본 발명에 따라 오실로스코프의 습득 하드웨어의 시분할 사용에 의해 다중 신호 뷰가 생성된다.  소프트웨어 장치는 하나의 입력 신호 측정 세트를 생성하고, 이들 측정 결과로부터 입력 신호를 형태에 따라 분류한다.  특정 형태의 신호는 한 쌍의 신호 뷰를 함축적으로 선택한다.  오퍼레이터는 연관 부가 메인 뷰인 경우 사용가능한 다른 뷰의 일례를 관찰한다.  대체 뷰는 "라이브" 미니어처 뷰가 될 수 있으며, 단순화된 형태로 메인 뷰를 따라 디스플레이된다.  이들 뷰를 클릭함으로써, 대체 뷰를 메인 뷰로 할 수 있다.  오퍼레이터는 뷰를 추가하거나 수정할 수 있다.  각각의 뷰는 자동으로 수행되는 측정 세트를 수반하며, 그 결과는 파형에 대한 텍스트 주석으로 화면 상에 디스플레이된다.  서로 다른 신호 뷰는 서로 다른 자동 측정 세트를 수반하며, 이들 측정 결과는 파형 이미지에 대한 주석으로 표시된다.  이들 다음 교체 셋업은 미니어처 "라이브" 디스플레이가 될 수 있다.
Patent KR-20010097316-A (KR)
Inventor: BAE GYEONG CHAE
IPC: G02F1/13
Filed: 2000-04-21
Abstract: 본 발명은 액정표시장치용 유리기판 에지 그라인더 시스템 및 그 그라인딩 방법을 개시한다. 본 발명의 유리기판 에지 그라인더 시스템은 유리기판을 반입하는 공급장치와, 공급장치와 직렬로 배치되고 유리기판의 반입위치와 반출위치, 제1 연마위치와 제2 연마위치를 각각 제공하며 제1 연마위치와 제2 연마위치 사이에 유리기판의 이송방향을 전환시키는 방향전환위치를 제공하는 시스템메인보디와, 반입위치와 방향전환위치 사이를 운동하고 공급장치로부터 유리기판을 인수하여 운반하는 제1 운반장치와, 제1 연마위치에서 제1 운반장치에 의해 운반되는 유리기판의 이송방향 측단을 연마하는 제1 연마장치와, 방향전환위치에서 제1 운반장치로부터 유리기판을 인수하여 그 이송방향을 전환시키는 터닝장치와, 방향전환위치와 반출위치 사이를 운동하며 터닝장치로부터 유리기판을 인수하여 운반하는 제2 운반장치와, 제2 연마위치에서 제2 운반장치에 의해 운반되는 유리기판의 이송방향 측단을 연마하는 제2 연마장치와, 반출위치로부터 유리기판을 반출하는 자동이송장치로 구성된다. 본 발명에 의하면, 유리기판의 이송과 연마가 안정적이고 정확하게 이루어져 고품질의 유리기판을 제조할 수 있고, 생산성을 향상시킬 수 있는 효과가 있다. 또한, 유리기판의 크기에 맞추어 범용으로 사용할 수 있으며, 대형 유리기판의 연마가 가능하면서도 구성 및 배치가 간단하고 설치공간을 축소할 수 있다.
Patent KR-20010097573-A (KR)
Inventor: KIM DONG YEOB
IPC: G11B19/02
Filed: 2000-04-24
Abstract: 1. 청구범위에 기재된 발명이 속한 기술분야 
     본 발명은 초고속 전차종 버스정류장 자동 안내시스템에 관한 것임. 
     2. 발명이 해결하려고 하는 기술적 과제 
     본 발명은, 초고속 적외선 송수신 방식으로, 노선버스, 승용차, 택시 등과 같은 전차 종이 버스정류장에 30 -50미터로 접근하면, 버스정류장에 근접된 송신기에 압축 저장된 음성코드를 송출하여 차량에 탑재된 수신부에서 DSP칩이 압축 해제함으로써 버스정류장을 자동 안내방송하기 위한 시스템을 제공하고자 함. 
     3. 발명의 해결방법의 요지 
     본 발명은, 버스정류장(버스 승하차장 혹은 정거장) 자동안내 시스템에 있어서, 고속처리가 가능한 DSP 칩, 초고속 송수신부, 초고속 송신부(적외선부), 초고속 수신부, 송신 동기 반송파 발생기, 음성 압축코드 저장 메모리, 외부전원이 필요없이 설계되었기에 태양전지(솔라셀)을 받아 니켈카드륨 밧데리 충전회로를 송신부와, 압축 음성코드를 수신하여 음성압축을 풀어주는 메인 DSP 칩과 메모리, 메인 프로그램 메모리+음성 저장 듀얼 메모리, 음성신호로 변환하는 음성 재생 DSP 프로세서, 그 신호를 증폭하는 증폭기와 자체 스피커 혹은 버스 카오디오 사용 절환기를 거쳐 최종 음성이 출력되는 스피커, 정전압전류회로를 구비한 수신부를 포함하여, 노선버스, 승용차, 택시 등과 같은 전차 종이 버스정류장에 30 -50미터로 접근하면, 버스정류장에 근접된 상기 송신부에 압축 저장된 음성코드를 송출하여 차량에 탑재된 상기 수신부에서 DSP칩이 압축 해제함으로써 버스정류장을 자동 안내방송하는 것을 특징으로 함. 
     4. 발명의 중요한 용도 
     본 발명은 버스정류장 자동 안내방송 서비스 등에 이용됨.
Patent KR-20000037459-A (KR)
Inventor: PARK HAENG JONG
IPC: C10G1/10
Filed: 2000-04-25
Abstract: PURPOSE: A pyrolyzing reactor of waste rubbers and waste synthetic resins is provided which is to recover oil from waste synthetic resin materials and waste rubbers. CONSTITUTION: A reactor comprises: (i) a chamber-type heating furnace(3) having a burner(18) using surplus gas extracted from the pyrolysis of waste rubbers, waste synthetic resins; (ii) a transferring machine(4) which is installed on the inside of the heating furnace(3) in many steps and comprises a transferring pipe(4) having an outlet(13) in one side and a gas throwing-up pipe(16) in the other side and a transferring chain being rotated by a driving connecting means(10) and a transferring rug(12), which is installed on the transferring chain at fixed intervals; (iii) a coating layer(14) which is formed inside of the transferring pipe(6) to prevent dehydrogenation and is coated by a mixture of ceramic, glass and metal catalyst; (iv) electric heating pins(15) which are formed on the outside of the transferring pipe(4); (v) a cooler(19) which is cooled by a cooling fan(20) positioned on the lower side of the transferring pipes(4); and (vi) a selector(2) which selects carbon, methyl component from the materials cooled at the cooler(19) and comprises a selecting conveyor(21) having magnet(23) attached to a passive roller(22).
Patent KR-20000049734-A (KR)
Inventor: CHOI JONG KWANG
IPC: A44B1/04
Filed: 2000-04-26
Abstract: PURPOSE: Accessories using a button and a using method thereof are provided which can be functioned as accessories as well as a button. CONSTITUTION: Accessories using a button are comprised of: a various type of a decorating body(1) attached into the outside of the fixing material; the fixing material comprised of a various type of a supporting board(3) and a connecting part(2) to insert a button and formed in the frame of the supporting board(3); and a button having a projected part in the center and a button hole.
Patent KR-20010102603-A (KR)
Inventor: SONG TAE HAN
Filed: 2000-05-01
Abstract: 본 발명은 인터넷환경하에서 고유코드가 인쇄된 명함을 이용하여 사용자 또는 등록회원의 인맥관리를 인터넷 사이트에서 구현하는 방법에 관한 것으로서, 더욱 구체적으로는 오프라인상에서 개인간에 명함을 교환하고 나서 이를 보관,이용할 때 명함에 명시된 신상정보를 디지털화하여 수정,정리가 간편하게 하고, 이런 일련의 작업을 인터넷 사이트에 접속하여 실행함으로써 친분 또는 사업상 관계를 맺는 사람들의 인맥관리를 손쉽게 할 수 있는 방법에 관한 것이다. 
     본 발명은 오프라인에서 주고받는 명함을 이용한 인터넷에서의 인맥관리방법으로 고유코드가 인쇄된 명함과 사용자 또는 등록회원의 신상정보를 제공받는 인터넷 사이트, 사용자 또는 명함별로 부여되는 고유코드, 부여된 고유코드의 내용을 파악하는 Database프로그램, 신상정보가 배열, 정리되는 주소록 또는 명합첩으로 구성됨을 특징으로 한다.
Patent KR-20010090014-A (KR)
Title: system for protecting against network intrusion
Inventor: HAN DAE SEONG
IPC: H04L9/00
Filed: 2000-05-09
Abstract: PURPOSE: A system for protecting a network is provided to construct a more essential security organization by automatically detecting and blocking an illegal invasion such as a hacking as well as pursuing a source thereof and giving an accurate evidence of hacking. CONSTITUTION: A client computer(600) uses one operating system of a windows 95, windows 98, windows 2000 or windows NT. The client computer(600) is provided with a web browser. A network protecting server(500) uses a LINUX as an own operating system, and has a web server for providing a network protecting site therein. A network monitoring unit(531) monitors a communication in an internal/external network. A network detecting unit(532) operates in connection with the network monitoring unit(531), and automatically detects and discriminates illegal invasions. An access blocking unit(533) blocks the corresponding network session, if an internal network illegal action and an external hacking have been detected in the network detecting unit(532). An alarm generating unit(534) informs a client that the internal network illegal action and external hacking have been detected. A unit for reporting details of monitoring(535) reports details of monitoring and detecting during a certain period, and a logging.
Patent KR-20010107033-A (KR)
Inventor: KIM DONG HAN
Filed: 2000-05-24
Abstract: 본 발명은 기판의 스크래치(Scratch)를 최소화함과 아울러 기판의 적재능력을 향상시킨 기판 수납용 카세트에 관한 것이다. 
     본 발명의 기판 수납용 카세트는 기판들 각각을 지지하기 위한 선반들을 구비하며 선반들에 의해 지지되는 기판의 처짐량이 작아지도록 선반들이 소정 길이 이상으로 신장된 다수의 사이드 플레이트와, 기판들의 전방방향과 후방방향의 처짐량이 동일하도록 기판에 대한 수직방향 지지부재만으로 구성된 다수의 스토퍼를 구비한다. 
     본 발명에 의하면 21장 이상의 기판을 적재할 수 있어 물류능력 및 생산성을 향상시킬 수 있다.  또한, 기판의 처짐량을 일정하게 하여 로봇 암의 작업공간을 충분히 확보함으로써 기판에 발생되는 스크래치를 최소화 할 수 있다.
Patent KR-20000058989-A (KR)
Inventor: YEOM PYEONG SAM
Filed: 2000-07-07
Abstract: PURPOSE: A method for advertising based on a personal-to-personal method using an e-mail is directed to attaching an advertisement message(banner, motion picture, multimedia, etc.) to an e-mail, so that a customer who received the e-mail views the advertisement message. CONSTITUTION: A HTML document, an image, a sound, a multimedia, etc. are attached to an e-mail in a file form and is transmitted to a member or a common customer(S10). The member and customer who received the e-mail judge to open the e-mail. The HTML document, the image, the sound, the motion picture, the multimedia, etc. attached to the e-mail are viewed(S240). Various quiz related to the contents of the attached e-mail are provided after or before the HTML document, the image, the sound, the motion picture, and the multimedia attached to the e-mail are viewed(S220). The e-mail is received(S20), and the server connected with the internet automatically checks and set the mail address of the receiver.
Patent KR-20000059165-A (KR)
Inventor: CHOI DU GIL
Filed: 2000-07-19
Abstract: PURPOSE: A method for real estate and supplementary service transactions using both online and offline methods is provided to enable the real estate agents and cooperative partners to secure a large number of customers and to make real estate transactions through reduced effort and monetary expense by connecting various real estate agencies dispersed in a number of areas into a franchise and providing the real estate items, its information, and supplementary services to the franchise members through the internet. CONSTITUTION: A method for real estate and supplementary service transactions using both online and offline methods is composed of reception, storage, and transmission. The franchiser device(200) receives and stores real estates sales and rental items of the members and franchises through the member's devices(100) and affiliated franchisee's devices(300). When a member device requests for the stored real estate sales and rental information as well as the list of affiliated franchisees, the franchiser device transmits the requested information while being online. The franchiser device stores detailed information of the members and franchisees, which have been provided in detail upon signing up as members and franchisees.
Patent KR-20020009793-A (KR)
Title: A method for manufacturing a flex type printed circuit board for packaging simiconductors
Inventor: JUNG JI UK
IPC: H05K1/11
Filed: 2000-07-27
Abstract: PURPOSE: A method for manufacturing flexible PCB for mounting semiconductor chips is provided to reduce manufacturing procedures and cost and improve yield, by simultaneously coating a photosensitive etching resist to front and rear surfaces of the substrate prior to the etching process. CONSTITUTION: A method comprises a first step of forming a device hole(A) and a solder ball(B) by stamping a polyimide film(110) having a surface attached with an adhesive(120); a second step of depositing a copper clad laminate(130) onto the substrate where the device hole is formed, and pressing and heating the resultant structure; a third step of simultaneously coating a photo resist(140) onto the front and rear surfaces of the substrate having the copper clad laminate; a fourth step of forming a printed circuit by performing exposure and developing processes to the photo resist coated to the front surface of the substrate and etching the copper clad laminate; and a fifth step of removing the photo resist coated at the front and rear surfaces of the substrate, and performing a finishing surface treatment.
Patent KR-20020022116-A (KR)
Title: Method For Internet Advertising Able To Implement Event Using Expand Banner And For Reporting Its Result
Inventor: LIM JONG HYEON
Filed: 2000-08-09
Abstract: PURPOSE: A method for providing an Internet advertisement and result is provided to increase the effectiveness of an advertisement by enabling a user to become a member without moving to other web pages on a window for the advertisement, and by continuously exposing the advertisement to the user. CONSTITUTION: In case that a user connects to a web page provided from a web server through a user terminal(S402), an Internet banner advertisement is provided through an advertisement server(S404). A log file of the user is transmitted and stored to the advertisement server. Data inputted from the user are transmitted to the web server(406). Data on interaction between the user and the advertisement are stored and analyzed in an interaction analyzing unit(S408). A result analyzed is provided to an advertiser or an advertising agency(S410).
Patent KR-20020016383-A (KR)
Title: Flat neon sign device
Inventor: HA HONG JU
IPC: G09F13/26
Filed: 2000-08-25
Abstract: PURPOSE: Provided is a plane neon sign structure which forms an electrode for discharge at one side of two glasses and prints a fluorescent at the other glass so that it simplifies to produce glass with the fluorescent formed. CONSTITUTION: The plane neon sign structure comprises the parts of: a first plate(1) which prepares two electrodes to cause potential difference; a second plate(15) which is closely placed in the first plate to include the fluorescent with the shape of advertisement pattern included to be displayed; and a spacer(11) which is placed between the first plate and the second plate to form discharge space(17).
Patent KR-20020017104-A (KR)
Title: Semiconductor device for electrostatic discharge protection circuit
Inventor: LEE DEUK HUI
IPC: H01L27/04
Filed: 2000-08-28
Abstract: PURPOSE: An electrostatic discharge(ESD) protection circuit of a semiconductor device is provided to improve capacity by forming a stable resistor in a shortened drain contact to gate(DCG) space, and to reduce the size of an input/output protection circuit by making a DCG dimension of the ESD circuit smaller according to a design rule. CONSTITUTION: An isolation region and an active region are defined by an isolation layer in a semiconductor substrate(20) of the first conductivity type. A well(21) of the first conductivity type is formed on the active region of the semiconductor substrate. A gate is formed on the well of the first conductivity type, dividing the active region into a drain formation region and a source formation region and interposing a gate insulation layer. The first doping region(26) of the second conductivity type, a doping region(27) of the first conductivity type and the second doping region(28) of the second conductivity type are sequentially and laterally formed on the well in the drain region from the isolation layer to the gate. The third doping region(29) of the second conductivity type is formed on the substrate in the source region.
Patent KR-20020022254-A (KR)
Title: Sewing machine
Inventor: PARK BO IN
IPC: D05B27/10
Filed: 2000-09-19
Abstract: PURPOSE: A sewed article transfer device which can accurately transfer an article to be sewed while rotating a transfer roller of a transferring machine at the uniform number of rotations in accordance with the transfer speed of the article to be sewed is provided. Whereby, sewing process is performed in optimum state and productivity is improved. CONSTITUTION: This transfer device of a sewing machine(101) comprises: a magnetic tape(103) formed by a magnetic part(104) and nonmagnetic part(105) attached to the outer surface of a pulley(102) of a sewing machine to pull an article to be sewed while rotating a transfer roller of a transferring machine at the uniform number of rotations in accordance with the transfer speed of the article to be sewed; a sensor(106) mounted on the sewing machine for sensing the rotation of the magnetic part formed at the magnetic tape and then transferring the signal to a control box(108); and a servo motor(107) mounted on the sewing machine to rotate the transfer roller of the transferring machine while rotating the control box to have the sensing signal of the sensor.
Patent KR-20010050700-A (KR)
Inventor: NOGUCHI HIROYUKI
IPC: D06F37/12
Filed: 2000-09-28
Abstract: PURPOSE: To minimize the generation of a harsh grating noise resulted from the holes or projections of a basket in its rotation. CONSTITUTION: The holes 18 (or projections) of a basket 14 are formed in an inclination arrangement that the holes 18 (or projections) on other axial lines are arranged at substantially equal circumferential intervals within the range of circumferential pitch interval of the holes 18 (or projections) of the axial tip (top stage) line and shifted from the holes 18 (or projections) of the axial tip line. According to this structure, the phases of sound waves generated therefrom are shifted, these sound waves with shifted phases are totaled and the sound fluctuation component concerning noise is consequently made zero by the mutual interference thereof.
Patent KR-20010007913-A (KR)
Inventor: CHAE YOON KI
IPC: C23C8/80
Filed: 2000-10-23
Abstract: PURPOSE: A cooling method for reinforcing hardness and solving tarnish problems using nitrogen gas in the heat treatment process is provided to increase quality and productivity of an iron processed goods by cooling the iron processed goods in a cooled reactor after feeding nitrogen into a cooled reactor so that hardness and color can be accurately adjusted to the established standards and a consumed time of the cooling operation can be shortened. CONSTITUTION: A plurality of nitrogen gas injection pipes(3) are mounted on a wall surface(2) of cooling chamber body(1). The plurality of nitrogen gas injection pipes(3) are connected to a nitrogen tank(4) through a connecting pipe(5). A recovering pipe(10) is installed on top of the cooling chamber body(1). The recovering pipe(10) is connected to the connecting pipe(5) through a cooler(11) and a blower(12). A carburized iron processed goods is charged into the cooling chamber and cooled by feeding nitrogen and flowing it around.