baber/WOPTO huggingface dataset:
Patent KR-20040039792-A (KR)
Title: Process chamber for using semiconductor fabricating equipment
Inventor: BAEK SE UNG
IPC: H01L21/205
Filed: 2002-11-04
Abstract: PURPOSE: A process chamber for semiconductor fabricating equipment is provided to prevent a lift pin from being broken by a wafer transfer arm by installing the lift pin having a gas exhaust hole inside a process chamber and by exhausting the gas inside a bellows to the outside along the gas exhaust hole of the lift pin when the lift pin is transferred upward to load a wafer. CONSTITUTION: An insertion hole(194) is formed in the center of a pin supporting socket(193) that penetrates a heater and a susceptor(182). The lift pin(191) vertically moves as a heater supporter moves vertically and places the wafer on the susceptor, inserted into the insertion hole. One side end of the bellows(196) is inserted into the lower portion of the pin supporting socket. The bellows contracts and expands as the heater supporter moves vertically, sealed from the outside. A supporting cap(198) is inserted into the other side end of the bellows to seal the bellows, vertically transferring the lift pin as the heater supporter moves vertically. A gas exhaust unit exhausts the inner gas of the bellows to the outside as the bellows contracts.
Patent KR-20020089277-A (KR)
Inventor: EOM GI HYEON
IPC: B29B17/00
Filed: 2002-11-06
Abstract: PURPOSE: Provided are a process for producing a sound-absorbing insulation material for the interior of cars and the sound-absorbing insulation material excellent in heat-keeping property, sound-absorbing property, and formability. CONSTITUTION: The process for producing the sound-absorbing insulation material(4) comprises the steps of; cutting a polyester fiber(1) and an acrylic fiber(2) and beating, wherein the ratio of the polyester fiber(1) and the acrylic fiber(2) is 50:50; mixing 35% of the polyester fiber(1), 35% of the acrylic fiber(2), and 30% of a low melting point polyester fiber(3) and carding; molding; heating to melt the low melting point polyester fiber(3) to make nonwoven fabric form; compressing and cooling; and cutting.
Patent KR-20040040907-A (KR)
Title: Binocular view finder optical system and camera appling it
Inventor: KIM YONG UK
IPC: G03B13/02
Filed: 2002-11-08
Abstract: PURPOSE: A binocular view finder optical system and a camera having the same are provided to allow a user to perform photograph work with both eyes by transferring images generated from a display device through two branches. CONSTITUTION: A binocular view finder optical system includes a display device(1), a prism device(10), and first and second lens units(20,30). The prism device(10) divides images generated from the display device(1) into two identical images. The first and second lens units(20,30) include first to fourth lenses(21,23,25,27), which are aligned in a proceeding route of two images. The prism device(10) includes first to third prism sections(11,13,15). The first prism section(11) includes a division surface(11b) for separating images into two identical images. The second prism section(13) has a reflective surface(13a). The third prism section(15) includes two reflective surfaces(15a,15b).
Patent KR-20040041248-A (KR)
Title: Method and apparatus for controlling constant linear velocity of spindle motor using mirror signal
Inventor: JANG YEONG UK
IPC: G11B19/247
Filed: 2002-11-09
Abstract: PURPOSE: A spindle motor speed controlling method and system is provided to definitely control a rotational speed of a spindle motor in an optical system according to an offered condition. CONSTITUTION: The system comprises a mirror signal detection circuit(20), a counter(30) and a comparator(40). The mirror signal detection circuit(20) gets clocked at a rising edge and a falling edge of a track zero cross signal, and detects a mirror signal with a pulse width variable according to a speed variation of the spindle motor. The counter(30) performs an up/down counting operation for a pulse width in the first logic state and the second logic state of output signals, generated by the mirror signal detection circuit(20), in response to a clock signal. The comparator(40), connected to the counter(30), compares the output signal of the counter(30) with a reference value, and outputs a comparison result.
Patent KR-20040042494-A (KR)
Title: Roaming Service System and Method from Synchronous Network to Asynchronous Network of IMT-2000 using Termination Control System
Inventor: KIM JEONG GEUN
IPC: H04W80/10
Filed: 2002-11-14
Abstract: PURPOSE: A termination data roaming service system from a CDMA2000(Code Division Multiple Access 2000) network to a WCDMA(Wideband CDMA) network using a TCS(Termination Control System) and a method therefor are provided to roam termination data from the synchronous CDMA2000 network to the asynchronous WCDMA network. CONSTITUTION: A DHLR(Dual Home Location Register)(240) manages respective subscriber information of a CDMA2000 network(100) and a WCDMA network(200). A TCS(270) processes calls terminated to a mobile terminal which roams from the CDMA2000 network(100) to the WCDMA network(200), and manages termination information. An SIP(Session Initiation Protocol) server(250) receives a termination message from the TCS(270) which can be applied to both synchronous and asynchronous networks, and provides the received termination message to the mobile terminal. The first database manages a mapping table as to subscriber information of the synchronous network, The second database manages a mapping table as to subscriber information of the asynchronous network, and the third database manages user IDs of subscribers.
Patent KR-20040042734-A (KR)
Title: Method for analysis of efficiency in turbo refrigerator and apparatus thereof
Inventor: BAEK YEONG JIN
IPC: F25B49/00
Filed: 2002-11-15
Abstract: PURPOSE: A method and an apparatus for analyzing the performance of a turbo freezer are provided to analyze and predict the performance of a turbo freezer on the given random conditions. CONSTITUTION: A freezing cycle(10) includes a compressor(11), a condenser(12), an expander(13), and an evaporator(14). A temperature measuring element(21) is installed at a heat dissipating water inlet. Other temperature measuring elements(31,32) are installed at heat absorbing water inlet and outlet. A flux measuring element(33) is installed at the heat absorbing water inlet or outlet. An analyzing element(40) is connected with the temperature measuring elements, and the flux measuring element for processing the obtained values. It is judged whether sufficient data necessary for predicting the performance on random conditions are accumulated. A non-linear function relation between data input and output is extracted by using an adaptive neuro-fuzzy inference system. The data measured on the random conditions are substituted for the non-linear function.
Patent KR-20040046504-A (KR)
Title: A management apparatus for game machine
Inventor: KIM CHUL RIM
IPC: G06Q99/00
Filed: 2002-11-27
Abstract: PURPOSE: A device for managing game machines is provided to prevent the robbery of a game CD and efficiently manage the game machine in a game room by constructing a system for transferring only an output signal and the various control signals to a user while making a manager manage the game machine. CONSTITUTION: A manager PC(200) outputs the control signal for controlling a gamepad(500) and a USB(Universal Serial Bus) device(600). A signal amplifier(300) amplifies or outputs a game machine signal such as an A/V(Audio/Video) signal, and a downward gamepad/USB signal output from a video game machine(100), and the control signal output from the manager PC, and inputs the upward gamepad/USB signal from the gamepad and the USB device to the video game machine. A signal controller(400) outputs an A/V signal output from the signal amplifier to an A/V output medium(700,800), controls the gamepad and the USB device depending on the control signal output from the signal amplifier, and inputs the upward gamepad/USB signal to the signal amplifier.
Patent KR-20040047135-A (KR)
Title: Laser
Inventor: JU SEUNG CHAE
IPC: G01D9/00
Filed: 2002-11-29
Abstract: PURPOSE: A laser measuring apparatus including a storage unit capable of storing data values is provided to raise the measurement efficiency by providing an additional unit capable of automatically storing data values measured by using a laser apparatus. CONSTITUTION: A laser measuring apparatus includes a receiving part(10), a display part(20), an input part(30), a storage part(40), and a transmitting part(50). The receiving part(10) receives laser emitted from laser equipment. The display part(20) displays measurement values of the receiving part(10). The input part(30) inputs the measurement values. The storage part(40) records and stores inputted data values. In addition, the transmitting part(50) allows the stored data to be transported through a communication port. Furthermore, a display range is 0 to 35mm, and a measurement range is 50 to 400mm. The laser measuring apparatus is capable of storing 999 measurement data.
Patent KR-20030047742-A (KR)
Title: Film over-wrapping machine
Inventor: KAKUTANI NAOHIKO
IPC: B65B61/18
Filed: 2002-12-03
Abstract: PURPOSE: To provide an overwrapping machine capable of correctly adjusting a film-cutting position and an unsealing tape affixing position corresponding to a register mark. CONSTITUTION: This overwrapping machine comprises a film feed roller 8 to feed continuously a film web FW with the register mark printed thereon a film cutter 12 to cut the film web FW while synchronizing with feeding a film suction belt 40 to carry a cut film sheet S to a packaging passage 4, a pusher to press an article A to the film sheet S and feed it to the packaging passage 4, a register mark sensor 46 to detect the register mark of the film web FW, and a controller 44 having a function of correcting the film cutting position corresponding to the register mark by controlling feed speed of the film web FW based on a detected signal from the register mark sensor 46 when a pitch of the register mark deviates.
Patent KR-20040050719-A (KR)
Title: apparatus and method for sensing pickup error of office machine
Inventor: LEE JIN SU
IPC: B65H1/12
Filed: 2002-12-09
Abstract: PURPOSE: An apparatus and a method for sensing a paper feeding error in an official instrument are provided to sense the paper feeding error generated by the operation badness of a pickup roller using only a paper sensor installed in a paper feeding cassette without additionally installing a separate paper sensor. CONSTITUTION: A sensing actuator(119) is installed in a frame to be displaced when papers are loaded on a paper feeding cassette(111). A paper sensor unit(125) outputs a paper loading signal and a paper unloading signal according to the displacement of the sensing actuator(119). Sensing actuator driving units(113,132) drive the sensing actuator(119) so that the paper sensor unit(125) outputs the paper unloading signal in the pickup operation of a pickup unit(130). A control unit judges whether the paper sensor unit(125) outputs the paper unloading signal in the pickup operation of the pickup unit(130), and stops an official instrument when the paper sensor unit(125) does not output the paper unloading signal.
Patent KR-20040051262-A (KR)
Title: Establishment method of a new path with minimum preemption of existing paths in the data network
Inventor: JANG MYEONG RAE
IPC: H04L12/28
Filed: 2002-12-12
Abstract: PURPOSE: A method for establishing a new path upon removing the minimum number of existing paths in data communication network is provided to quickly and effectively establish a traffic path while minimizing damage to the existing traffic. CONSTITUTION: When a new path is requested to be established through removing the minimum number of existing paths, a data extracting unit extracts state data for establishing a new path(S201). A data input unit inputs the state data which has been extracted by the data extracting unit(S203). A calculator obtains solution of an integer planning method from a question created upon receiving the state data from the data input unit, and establishes a new end-to-end traffic path in data communication network based on the result value(S205).
Patent KR-20040052110-A (KR)
Title: Chorus and a cappella implementing method by TTS
Inventor: CHUN HUI JIN
IPC: G10L13/00
Filed: 2002-12-13
Abstract: PURPOSE: A chorus and acappella embodying method using TTS(Text To Speech) is provided to perform multi-output using a multi-thread method and embody an acappella effect using an artificial rhythm generation method of the TTS. CONSTITUTION: A user sets a chorus function or an acappella function in a TTS system(S304). A sentence parsing unit confirms and parses characters included in an inputted sentence(S306). The TTS system judges whether the chorus function is set up(S308). If the chorus function is set up, a rhythm/voice generating unit generates a voice with respect to the parsed sentence(S310). A voice synthesizing unit reads a unit voice from a unit voice DB, and synthesizes the read unit voice with the generated voice(S312). The voice synthesizing unit outputs the synthesized voice through a speaker(S322).
Patent KR-20040052382-A (KR)
Title: Luggage fixing net for automobile
Inventor: AHN JUNG GYUN
IPC: B60R5/04
Filed: 2002-12-17
Abstract: PURPOSE: A cargo fixing net for a vehicle is provided to reduce noise and prevent the damage of cargoes by firmly fixing the cargoes regardless of size. CONSTITUTION: A plurality of fixing units(4,5,6,7) are formed at a net body(1), and support elastic string(2). A plurality of hooks(3) are installed at the fixing units, and is fixed to support holes formed at a board(8). Two fixing units(4,7) are installed at both ends of the net body. The other fixing units(5,6) are installed at the center of the net body at predetermined intervals.
Patent KR-20030076202-A (KR)
IPC: G03F7/039
Filed: 2002-12-18
Abstract: 본 발명은 원자외선에 감응하는 화학 증폭형 레지스트로서 유용하고, 양호한 드라이 에칭 내성을 가짐과 동시에, 고해상도로 방사선 투과율이 높은 감방사선성 수지 조성물 및 그 성분으로서 유용한 공중합체 및 중합체 혼합물을 제공하는 것이다. 
     본 발명의 감방사선성 수지 조성물은 
     (A) 시클로알킬계 산해리성기로 보호된 (메트)아크릴레이트 반복 단위, 히드록시스티렌계 반복 단위, 및 특정한 산해리성기로 보호된 히드록시스티렌계 반복 단위를 포함하는 공중합체 등의 중합체 성분과, 
     (B) 감방사선성 산발생제를 포함하는 것을 특징으로 한다.
Patent KR-20040055879-A (KR)
Title: Circuit for controlling on die termination
Inventor: CHOO SIN HO
IPC: G11C11/40
Filed: 2002-12-23
Abstract: PURPOSE: An on-die termination circuit is provided to measure the accurate termination resistance by removing the collision between the current and the voltage during the measurement of the termination resistance. CONSTITUTION: An on-die termination circuit includes a first switch(SW3), a second switch(SW4) and a controller(40). The first switch(SW3) pulls up the voltage applied to the input/output pins. The second switch(SW4) pulls down the voltage applied to the input/output pins. And, the controller(40) differently controls the pull-up/pull-down termination of the first switch(SW3) and the second switch(SW4) by receiving the termination enable signal and the test mode enable signal.
Patent KR-20040056288-A (KR)
Title: Excavating Equipment for Remove of Blending Ore Located at Side Block of Yard
Inventor: KIM JONG BOK
IPC: B65G63/00
Filed: 2002-12-23
Abstract: PURPOSE: A mixed mineral pushed to a yard revetment is removed automatically to reduce elementary change and to improve yield rate of the mixed mineral. CONSTITUTION: A rack gear and a stopper are fixed to a frame of a blending reclaimer. A hollow case(20) having a slit groove is fixed to a side of a bucket wheel(6) of the blending reclaimer. A rotation guide pin(24) is installed to the slit groove, and a rotation rod(23) is supported by a bearing. A pinion gear(26) meshed with the rack gear is fixed to the upper part of the rotation rod. A digging blade is fixed to lower end of the rotation rod. A blade direction changing rod(29) fixed vertically to the upper end of the rotation rod.
Patent KR-20040056756-A (KR)
Title: Method nitriding form tool
Inventor: KIM DEOK JAE
IPC: C23C8/26
Filed: 2002-12-24
Abstract: PURPOSE: A method for nitriding a tool is provided to improve life cycle and performance of the tool by improving surface hardness of the tool without change of surface roughness of the tool such as drill in which a blade tip part of the tool is used. CONSTITUTION: In a method for nitriding a tool in which the surface of the tool is treated using plasma, the method comprises an exhaust step of evacuating the reaction chamber after charging the cleaned tool into reaction chamber by cleaning the tool; a temperature increasing step of increasing temperature of the stabilized reaction chamber to 500 deg.C again after increasing temperature of the inside of the reaction chamber to 400 deg.C through a heater installed on the wall of the reaction chamber and then stabilizing the reaction chamber; and a radical nitriding step of maintaining degree of vacuum of the reaction chamber to 250 to 700 Pa by controlling reactive gas in the reaction chamber to a certain ratio, maintaining plasma until radical is formed by supplying 300 to 400 V of dipole pulsed direct current power to the cathode, and forming a diffusion layer only by controlling pulse time to the range of 30 to 300 μs and pause time to the range of 100 to 1,000 μs in a pulse in the plasma state.
Patent KR-20040056922-A (KR)
Title: Test piece insertion apparatus of magnetic tester
Inventor: HWANG GWANG JUN
IPC: G01N1/00
Filed: 2002-12-24
Abstract: PURPOSE: An automatic insertion device of a specimen is provided to automatically layer specimens by crossing two specimens inside a solenoid. CONSTITUTION: A turntable portion(30) stores an Epstein frame having a solenoid in the upper part. The turntable portion is installed to be rotatable by a driving motor. A specimen insertion/guide portion(40) has a specimen holder having a specimen holder guide groove to be separated at the same interval as the solenoid. A specimen insertion portion(50) comprises a pair of specimen holders, permanent magnets and a cylinder. The specimen holders are installed to be movable through a passage to connect the holder guide groove and the solenoid. The permanent magnets are fixed in the one ends of the specimen holders. The permanent magnets form the same face as the upper faces of the specimen holders. The cylinder moves the specimen holders. Thereby, the work load is reduced.
Patent KR-20040060350-A (KR)
Title: flash memory fusing device using a DA-BUS of the transmission system and controlling method therefore
Inventor: KIM YONG HWAN
IPC: G06F13/28
Filed: 2002-12-30
Abstract: PURPOSE: A device for fusing a flash memory using a DA(Device Access)-bus of a transmission system and a controlling method thereof are provided to maximally use a memory space of a lower device control board without installing the unnecessary memory space and a fusing application program to the lower device control board. CONSTITUTION: The device control board(4) is equipped with a DA-bus interface(10) interfacing the data transmitted/received through the DA-bus(3) connecting the boards inside the transmission system, and the flash memory(5). A processor board(6) directly controls the fusion of the flash memory by loading an embedded flash fusing application program through the DA-bus interface of the device control board passing the DA-bus.
Patent KR-20020015075-A (KR)
Title: Discontinuous polyethylene terephthalate fibres and method for producing the same
IPC: D01F6/62
Filed: 2000-07-20
Abstract: PTT staple fibers which are characterised by a novel combination of properties. In combination with novel stress-strain properties and modulus parameters, staple fibers or textiles or home textiles having extremely desirable aesthetics and service quality are obtained.Economical two-stage process for the production of PTT staple fibers. The melt spinning is carried out at a high polymer throughput and a spinning take-off speed of at least 600 m/min. In a separate fiber drawing frame, the stretching, heat-setting, crimping and drying are carried out.
Patent KR-20020029103-A (KR)
IPC: C12N15/12
Filed: 2000-09-01
Abstract: 본 발명은 무-혈청 배양배지에서 미세담체에 배양한 중국 햄스터 난소 세포로부터 이질성 분비단백질을 생산하는 방법에 관한다.  상기 방법은 혈청-함유 환경에서 무-혈청 환경으로 전환될 때, 분비단백질의 포유동물 부착세포 배양생산에서 관찰되는 문제점인 생산 지연기를 회피한다.
Patent KR-20020025259-A (KR)
IPC: F16K31/06
Filed: 2000-07-10
Abstract: 간단한 구조로 배기 유량을 서서히 증대시킬 수 있는 유량 제어 밸브의 제공이 요구되고 있었다. 그래서, 본 발명의 유량 제어 밸브는 압력 유체를 외부로 유출시키는 유출구(26)와, 상기 유출구를 임의로 개폐하는 압접부(31)를 갖는 밸브체(3)와, 상기 밸브체의 압접부를 이동시키는 밸브 작동체(8)로 이루어지고, 유출구로부터 배기할 때에, 유출구를 폐색하고 있는 밸브체의 압접부 평면이 유출구로부터의 배기에 의해 경사지도록 형성하는 것을 특징으로 한다. 상기 밸브체는 대략 원통형 패킹(33)의 저부 개구로부터 코어(34)를 끼워 넣은 압접부의 하단부에 180도 간격을 두고 탄성체에 의한 지지판(32)을 설치하여 이루어진다. 상기 압접부 및 지지판은 고무 등의 탄성재로 형성되어 있다. 상기 지지판의 폭 치수는 상기 압접부의 외경 치수와 거의 같은 크기로 하는 것이 바람직하다. 상기 압접부의 평면을 배기에 의해 경사시키기 위해서는, 예컨대, 상기 유출구를 밸브체의 압접부의 중심에 어긋나게 형성하면 좋다.
Patent KR-20020059754-A (KR)
IPC: G10K15/02
Filed: 2001-09-13
Abstract: 콘텐트 배분이 제공되고, 적어도 하나의 스포일러가 콘텐트에 부가되어 스포일된 콘텐트를 얻고, 그 스포일된 콘텐트가 배분된다.  한 실시예에서, 스포일된 컨텐트는 다른 업계 포맷뿐만 아니라 당업계 포맷에 순응하고, 또다른 업계 포맷에서 스포일러들은 제거가능하다.  또다른 실시예에서, 스포일된 콘텐트로부터 스포일러를 어떻게 제거하는지를 나타내는 디스포일 정보가 제공된다.
Patent KR-20030014352-A (KR)
IPC: G06F13/14
Filed: 2001-01-02
Abstract: 라이저 카드(106)가 컴퓨터 시스템 마더보드(100)에 연결될 때, 라이저 카드(106)에 있는 저장 장치(201)는 컴퓨터 시스템이 라이저 카드(106)에 있는 임의의 주변 장치를 구성하도록 하는 구성 데이터를 포함할 것이다. 그것이 라이저 카드(106) 주변 장치(301,302)와 관계된 임의의 그리고 모든 PCI 구성 공간들을 실행되도록 하고 초기화 되도록 한 후에 상기 구성 데이터는 컴퓨터 시스템에 있는 바이오스(103)에 의해 가상 부가 ROM(305)로 취급될 것이다.
Patent KR-20020075443-A (KR)
Title: Empty container storage for the intermediate storage of empty iso containers
IPC: B65G1/04
Filed: 2001-01-23
Abstract: An empty container store for the temporary storage of empty ISO containers, in particular in fully automatic container terminals of sea ports or river ports includes a gantry bridge crane which spans the empty container store. The gantry bridge can be moved on an elevated craneway and has a traveling crab which can be moved thereon in the longitudinal direction thereof. A vertical lifting column is fastened to the traveling crab for lifting and lowering a load receiving means for the empty container. The load receiving means includes a spreader on a spreader support which is arranged on a spreader carriage which is guided on the lifting column by rollers on a spreader support.
Patent KR-20020092402-A (KR)
Title: 의료 진단 장치의 모세관 유동 제어
IPC: G01N35/08
Filed: 2001-03-23
Abstract: 생물학적 유체의 샘플 내의 분석 대상물 농도 측정을 위한 본 발명의 의료 진단 장치는 장치 내에 모세관 유동 채널을 포함하여, 샘플을 입구로부터 제 2 영역으로 이송한다. 유동 채널은 하나 이상의 방향에서 모세관 치수(capillary dimension)를 갖는다. 유동 채널 내의 정지 접합부(stop junction)는 상기 방향에서 더 큰 치수를 갖고 샘플 입구를 향하는 소정의 각도를 형성하는 경계부 영역을 갖는다.
Patent KR-20020087463-A (KR)
Title: 공기 예열기에서의 적극적인 누설 제어를 위한 부하 기초제어 시스템
IPC: F28F27/00
Filed: 2001-03-19
Abstract: 회전 재생식 공기 예열기(10)는 회전자(14)와; 이 회전자(14)에 인접하게 배치된 적어도 하나의 밀봉 수단과; 상기 회전자(14)와 인접한 제 1 위치와 이 제 1 위치로부터 이격된 제 2 위치 사이에서 상기 밀봉 수단(60)의 한 부분을 왕복운동방식으로 구동시키기 위해 작동가능한 구동 수단(62)과; 상기 구동 수단(62)을 제어하기 위한 제어 시스템(80)수단을 포함한다.  로직(94)은 상기 감지된 보일러 부하가 상기 제 1 저장 보일러 부하 이상으로 상승할 때, 제 1 작동 신호를 상기 구동 수단(62)에 제공하고, 상기 감지된 보일러 부하가 상기 제 1 저장 보일러 부하 미만으로 하강할 때, 제 2 작동 신호를 상기 구동 수단에 제공한다.  상기 제 1 작동 신호는 상기 밀봉 수단의 상기 부분을 상기 제 1 위치로 구동시키기 위하여 상기 구동 수단(62)을 작동시키고 상기 제 2 작동 신호는 상기 밀봉 수단(60)의 상기 부분을 상기 제 2 위치로 구동시키기 위하여 상기 구동 수단을 작동시킨다.
Patent KR-20020095476-A (KR)
Title: Hydrogenated Vinyl Aromatic-Diene-Nitrile Rubber
Filed: 2001-05-01
Abstract: Polymers of a conjugated diene, an unsaturated nitrile and a vinyl aromatic compound are selectively hydrogenated to reduce ethylenic carbon-carbon double bonds, without also reducing nitrile groups and aromatic carbon-carbon double bonds, preferably using a rhodium- containing compound as catalyst. The hydrogenated polymers are novel and display valuable properties.
Patent KR-20030032955-A (KR)
IPC: C12N5/02
Filed: 2000-05-12
Abstract: 본 발명은 세포를 각각 인테그린 VLA-5 또는 VLA-4 결합 부위를 갖는 폴리펩타이드와 접촉시킴으로써 적혈구 전구세포를 증식시키거나 적혈구 전구세포의 아폽토시스를 유발하는 방법을 기술한다.  상기 조건하에 배양된 세포 집단은 적혈구 세포 발달의 연구 및 다른 분야에 있어서 천연 또는 유도된 조혈 결핍증을 앓는 환자의 치료에서 유용함을 발견할 수 있다.