baber/WOPTO huggingface dataset:
Patent KR-20030030428-A (KR)
Title: thermoset composition for dye sublimation and its manufacturing and dye sublimation printing method
Inventor: KIM BI SEUK
IPC: C08L67/06
Filed: 2001-10-11
Abstract: PURPOSE: Provided is are a thermoplastic resin composition for dye-sublimation transfer, which has no deformation by heat and can withstand a transfer pressure, and which shows excellently improved durability and fire retardancy than existing printing quality. CONSTITUTION: The thermoplastic resin composition consists of 10-15 wt% of bisphenol type unsaturated polyester resin, 8-15 wt% of polymethyl methacrylate, 3-5 wt% of additives, 30-45 wt% of aluminum hydroxide, 5-15 wt% of calcium carbonate, and 15-25 wt% of glass fiber. The additives comprise at least two of dispersant, UV-blocker, antioxidant, silane coupling agent, internal releasing agent, and polymerization inhibitor, hardening agent, and thickening agent. The composition has no deformation of physical properties at high temperature for transferring, and shows improved development and permeability.
Patent KR-20030030603-A (KR)
Title: Method for transmission a voice information of using mobile radio communication system the toy
Inventor: KIM DONG WON
IPC: H04W8/22
Filed: 2001-10-12
Abstract: PURPOSE: A method for transmitting voice information to a toy by using a mobile communication system is provided to install a wireless signal receiving unit in the toy, and to transmit the unit study-related voice information or parents voice message information through a wireless communication device and store the information, so as to automatically output the stored voice information whenever a child touches a specific part of the toy. CONSTITUTION: A user dials a portable terminal(S21), to connect a communication server computer(S22) and inputs a communication code assigned to a toy(S23). The communication server computer decides whether the communication code is registered(S24). If so, the user decides whether to send a user voice message to the toy(S31). If so, the communication server computer receives, compresses and stores the user voice message(S32,S33). If the user decides to transmit voice information of pay contents in the step S31, the user decides whether to send voice information of a wireless Internet network(S35). If so, the user searches contents information of the wireless Internet network through the portable terminal(S36). Voice information selected by the user(S37) is received to the communication server computer and compressed then stored(S38). If the user decides to send voice information of a 700 service network in the step S35(S39), the user searches voice information of the 700 service network through the portable terminal(S40). Voice information selected by the user(S41) is received to the communication server computer and is compressed, then is stored(S42). The compressed and stored voice information is transmitted to the toy(S43). When the voice information is received to the toy(S44), a receiving tone is generated and the received voice information is reproduced(S45).
Patent KR-20030031362-A (KR)
Title: A prefabrication loess panel
Inventor: WOO CHANG HUN
IPC: E04C2/26
Filed: 2001-10-15
Abstract: PURPOSE: A manufacturing method of a loess panel is provided to radiate far infrared rays helpful for the human body. CONSTITUTION: The manufacturing method of a loess panel comprises the steps of: manufacturing a mold(40) provided with steel wires(41), and a fixed pin(44) provided with many projections; boring perforation holes(21) in thermal insulation materials(20) interposed in both sides of loess(10); crushing materials(22) such as charcoal, elvan, germanium, etc., which radiate far infrared rays, into the predetermined size, then burying in the perforation holes(21); and forming a friction layer(30) by applying the crushed materials(22) such as charcoal, elvan, germanium, etc. in the predetermined thickness.
Patent KR-20030034470-A (KR)
Title: Method for fabricating transistor having silicon-germanium channel
Inventor: KIM JONG SU
IPC: H01L21/336
Filed: 2001-10-23
Abstract: PURPOSE: A method for fabricating a transistor including a silicon-germanium(Si- Ge) channel is provided to improve resistance characteristic of source and drain, minimize thermal diffusion of germanium ions, and form the Si-Ge channel exactly by the predetermined length. CONSTITUTION: A Si-Ge channel layer is formed on the active region of a Silicon- On-Insulator(SOI) wafer, consisting of a semiconductor layer(1) and a buried oxide layer(2) by epitaxial growth or ion implementation method. A gate oxide layer is grown on the whole surface of the semiconductor layer and then gate material is deposited on the resultant structure. The gate oxide layer and gate material is over-etched to form a Si-Ge channel(4), when a gate(6) and gate oxide layer pattern(5) are also formed. Source and drain region(7) are formed on the predetermined area by ion implementation and then expitaxially grown to form a source and drain epitaxial layer(8). An insulating layer(9) is formed on the sidewall of the gate. An insulation oxide layer(10) is formed between electrodes formed in contact holes, which are made to expose the gate and source/drain epitaxial layer.
Patent KR-20030034803-A (KR)
Title: Air con control method for diesel engine in vehicle
Inventor: JUNG BYEONG YONG
IPC: B60H1/32
Filed: 2001-10-27
Abstract: PURPOSE: A method for controlling an air conditioner of a diesel engine is provided to temporarily turn off an air conditioner compressor when condition under which a vehicle starts running is satisfied during running of the air conditioner. CONSTITUTION: A method comprises the steps of: a step(S100,S105) determining whether an air conditioner switch is operated during idle state of an engine when the engine is started; a step(S145,S160,S200) executing fuel transient compensation depending on running of a compressor, and outputting compressor actuation control signal if the air conditioner switch is determined to be operated; a step determining a user's operation of the air conditioner switch if the air conditioner compressor works; a step determining whether condition under which a vehicle starts running is satisfied depending on pressure of the compressor and indoor temperature, if the air conditioner switch is turned on; and a step outputting compressor actuation control signal if the condition for the vehicle to start running is satisfied.
Patent KR-20020037265-A (KR)
Inventor: OHKUBO HIDEAKI
IPC: F25B21/02
Filed: 2001-11-02
Abstract: PURPOSE: To provide a seal structure for a thermoelectric converting device, which is high in sealing performance and easy in the manufacture of the same. CONSTITUTION: A thermoelectric converting circuit 3, utilizing Pertier effect, is pinched between two sheets of metallic heat exchanging plates 5, 7. An O-ring 13, pinched between the outer rim sections of the heat exchanging plates 5, 7, seals a gap between the outer rim sections of the heat exchanging plates 5, 7 across the whole periphery of the same. A connector 27 for connecting the thermoelectric converting circuit 3 to an external power supply is penetrated through a through hole 25 bored on the heat exchanging plate 5. Another O-ring 35, fitted to the outer surface of the connector 27, seals naturally a gap between the connector 27 and the through hole 25 when the connector is inserted into the through hole 25.
Patent KR-20020057787-A (KR)
Inventor: HAZAMA MAKOTO
IPC: G16B30/00
Filed: 2001-11-19
Abstract: PURPOSE: To remove noise based on Fourier transform even for a long data section wherein a migration speed is changed, and to determine accurately the base sequence. CONSTITUTION: Waveform reshaping processing by Fourier transform is applied to data of N points from the head of detection data by using a peak interval determined beforehand as a parameter (S1, S2), and the base sequence is determined relative to data of M points (M<N) from the head of the data of the N points (S3), and the peak interval is determined from the base sequence determination result (S4). The waveform reshaping processing by Fourier transform is applied to data of N points from the position determined by returning as many as L points (L<M) from the last of the data of the M points wherein the base sequence determination is executed, by using the peak interval determined just before as the parameter, and thereafter the base sequence determination, the peak interval calculation and the waveform reshaping processing are repeated similarly.
Patent KR-20030043471-A (KR)
Title: Cosmetic Compositions Comprising Vitamin C or Derivatives thereof Areca catechu L extract for Preventing Skin Aging
Inventor: CHOI JEONG DO
IPC: A61Q19/08
Filed: 2001-11-28
Abstract: PURPOSE: Provided is a cosmetic compositions comprising as active ingredient, vitamin C or derivatives thereof and an Areca catechu L extract for preventing skin aging to increase wrinkle care effect and improve moisturization, and abirritate skin stimulation. CONSTITUTION: A composition for preventing skin aging is characterized by comprising 0.005-20 wt.% of vitamin C or its derivatives, such as ethyl ascorbyl ether, magnesium ascorbyl phosphate, ascorbic acid 2-glucoside or allantoin ascorbate, and 0.0001-10.0 wt.% of an Areca catechu L extract.
Patent KR-20030046663-A (KR)
Title: Apparatus and method for remote reset bts
Inventor: KWON HEON SANG
IPC: H04W88/08
Filed: 2001-12-06
Abstract: PURPOSE: An apparatus and a method for remotely resetting a BTS(Base Transceiver System) are provided to remotely reset the BTS in a state in which communication is disconnected between a BSC(Base Station Controller) and the BTS. CONSTITUTION: A controller(201) generates a pattern insertion command in case that communication is disconnected between a BSC(20) and a BTS(30). A pattern generator(202) generates a specific pattern by the pattern insertion command from the controller(201) for resetting the BTS(30). An E1/T1 frame generator(203) inserts the specific pattern from the pattern generator(202) into a certain time interval of a transmission frame, and transmits the transmission frame. A pattern detector(304) monitors the certain time interval of a reception frame, and checks whether the specific pattern is received. If the specific pattern is received, the pattern detector(304) counts the received number of the specific pattern, and generates a reset signal when the count value is identical to a certain value. A power(308) re-boots a main board by the reset signal from the pattern detector(304), and resets the BTS(30).
Patent KR-20030047583-A (KR)
Title: RF receiving device of home automation
Inventor: CHOI BYEONG HWAN
IPC: H04L12/28
Filed: 2001-12-11
Abstract: PURPOSE: An RF(Radio Frequency) receiving apparatus for home automation is provided to correctly recognize an RF receiving signal in household appliances by removing signal distortion phenomenon by overlap between an infrared receiving signal and the RF receiving signal. CONSTITUTION: An RF receiving module(10) receives a transmission signal of an RF remote unit, and outputs an RF receiving signal and a control signal which has a low level when generating the RF receiving signal. A control circuit unit(12) blocks an infrared receiving signal and transmits the RF receiving signal to a CPU(54) by the control signal when the RF receiving signal is generated while transmitting an output signal of an infrared receiving module(50) to the CPU(54).
Patent KR-20030050659-A (KR)
Title: hydraulic cylinder split type cushion ring
Inventor: KIM JONG IN
IPC: F16J10/00
Filed: 2001-12-19
Abstract: PURPOSE: A hydraulic cylinder mounting a separable cushion ring is provided to prevent damage of parts at the stroke end of a piston by replacing the cushion ring without separating the piston combined with a cylinder rod and an assembling nut completely. CONSTITUTION: A hydraulic cylinder comprises a piston reciprocating linearly within the range of stroke; an assembling member restricting the piston from being separated from a rod; a cover fixed to both sides of a tube containing the rod by welding; and a cushion ring(11) combined with the outer periphery of the rod to relieve impact at the stroke end of the piston. The semispherical and separable cushion ring is replaced in wear or breakage without separating the piston from the assembling part of the rod. A stepped portion(12,13) is formed to prevent the cushion ring from sliding longitudinally on the contact surface.
Patent KR-20030056573-A (KR)
Title: Measurement apparatus for detecting slant angle of solid immersion lens
Inventor: BAEK MUN CHEOL
IPC: G01B11/26
Filed: 2001-12-28
Abstract: PURPOSE: A measuring apparatus for a slant angle of a SIL(Solid Immersion Lens) is provided to prevent a focal signal from generating error by measuring a slant degree of the SIL quantitatively with a principle of a collimator. CONSTITUTION: A measuring apparatus for a slant angle of a SIL(Solid Immersion Lens,211) comprises a light generating device(201), a first condenser(203) and a position sensing device(210). The light generating device generates light when projecting to the SIL formed like a hemisphere. The first condenser collects light reflected from a specular surface(208) on a lower portion of the SIL. The position sensing device measures a slant of the SIL according to a focus collected by the first condenser. A light divider(202) is included to project light generated from the light generating device to the first condenser and to progress light horizontally inside the SIL. Therefore, the focus of the SIL is formed correctly by measuring the slant of the SIL and compensating the slant with measured value.
Patent KR-20030058544-A (KR)
Title: Polymer dispersed lcd
Inventor: CHOI SU YEONG
IPC: G02F1/1334
Filed: 2001-12-31
Abstract: PURPOSE: A polymer dispersed liquid crystal display is provided to improve the dark state by projecting linear light into polymer matrix layers while minimizing loss of light emitted from a back light. CONSTITUTION: An upper substrate(200) and a lower substrate(100) face each other at a certain interval, having driving electrodes(101,201) respectively. A first polymer matrix layer(300) and a second polymer matrix layer are interposed between the upper and lower substrates. Micro droplets(300a) are dispersed in the first polymer matrix layer and the second polymer matrix layer, and have liquid crystal molecules(300b) inside. A back light(400) transmits light to the lower substrate. A reflective mirror(500) reflects light emitted from the back light. A λ/4 layer(600) transforms the light emitted from the back light into linear light. A CLC(Cholesteric Liquid Crystal) layer(700) projects the linear light into the polymer matrix layers.
Patent KR-20010085369-A (KR)
IPC: A61P11/06
Filed: 1999-08-11
Abstract: 본 발명은 신규 화학식 Ⅰ의 화합물, 그의 제조 방법, 그를 포함하는 제약 조성물, 및 의약에 있어서의 용도, 특히 염증성 증상, 면역 질환, 패혈성 쇼크, 순환계 질환과 위장의 염증, 감염 또는 손상의 치료 및 예방에 있어서의 용도에 관한 것이다. 
     <화학식 Ⅰ>
Patent KR-20010074839-A (KR)
IPC: C08G63/82
Filed: 2000-06-23
Abstract: A polyester having a good color tone, an excellent forming property and a high resistance to cohesion of foreign substance around a melt-spinning orifice when the polyester is melt-spun, is produced by polymerizing an aromatic difunctional carboxylic acid - alkyleneglycol ester and/or oligomer thereof in the presence of a catalyst including a reaction product of (A) a Ti compound component including a Ti compound (1) of formula (I) or a Ti compound (2) produced by reacting the Ti compound (1) with an aromatic difunctional carboxylic acid of the formula (III) or anhydride thereof, with (B) a P compound component selected from P compound (3) of the formula (III). <CHEM>   <CHEM>   <CHEM>  ÄR<1> = C2-C10alkyl group; p = 1 - 3, n = 2 - 4, R<2> = substituted or unsubstituted C6-C20aryl or C1-C20 alkyl group, m = 1 or 2, q = 0 or 1, and m + q = 1 or 2Ü
Patent KR-20010072928-A (KR)
Title: 시아노 치환된 메티드 및 아미드 염
IPC: H01M10/052
Filed: 1999-08-04
Abstract: 아미드 염의 경우는 1개의 시아노 (-CN)기, 메티드 염의 경우는 2개의 시아노기를 포함하는 아미드 및 메티드 염이 높은 이온 해리도를 필요로 하는 용도에서 사용된다.  이 염들은 이온 전도 및 이송을 위한 수단을 제공함으로써 축전지, 연료 전지, 축전기, 슈퍼축전기, 전기화학 센서 및 전해 전지와 같은 전기화학 전지에서의 전해질 성분으로 특히 유용하다.
Patent KR-20010075267-A (KR)
Title: Power control protocol for highly variable data rate reverse link of a wireless communication system
IPC: H04W52/28
Filed: 1999-09-09
Abstract: A subscriber unit receives a control message, wherein the control message includes an indication of periodic time intervals and an indication of a phase, and wherein each of the periodic time intervals include at least one time slot. The subscriber unit further receives power commands. The subscriber unit transmits signals in the indicated periodic time intervals, wherein each of the transmitted signals is derived from a sequence having the indicated phase and having a transmission power level derived from the received power commands, and wherein the transmitted signals are not transmitted simultaneously with traffic data by the subscriber unit. The subscriber unit transmits traffic data signals, wherein the traffic data signals have a transmission power level also derived from the received power commands.
Patent KR-20010075317-A (KR)
Title: Dosing container for repeatedly withdrawing flowable administration products used in health care
IPC: B05B11/00
Filed: 1999-09-10
Abstract: A dosing container (1) made of transparent material which is useful for the multiple removal of a free-flowing application product for a subject animal or human health, having a filling section (6) which is of a constant cross section over its filling height (3), and having adjustably secured to the container a dosing slide (10, 23) having a scale (11, 22), which slide can be adjusted over the filling height (3) of the container (5), and which can be set at the beginning of a treatment to a filling height (15) indicated by a scale value (14) corresponding to the body weight of the subject to be treated and which setting reaches filling height 16 corresponding to the scale value zero (12) at the end of a treatment.
Patent KR-20010080125-A (KR)
IPC: C07C15/107
Filed: 1999-10-19
Abstract: 본 발명은 불소함유 모오데나이트 및 파라핀으로 벤젠을 알킬화함으로써 선형 알킬벤젠(LAB)을 제조하는 공정에 있어서의 이의 용도에 관한 것이다. 상기 파라핀은 약 10 내지 14개의 탄소를 가질 수 있다. 불소함유 모오데나이트는 불화수소 수용액으로 처리함으로써 제조되는 것이 일반적이다. 벤젠 알킬화는 반응성 증류를 사용하여 실시될 수 있다. 본 발명은 또한, 불화수소와 같은 통상적인 LAB 알킬화 촉매로부터 불소함유 모오데나이트 생성물과 LAB 생성물을 결합함으로써 높은 2-페닐 이성체 함량을 갖는 LAB 제조방법에 관한 것이다.
Patent KR-20010080243-A (KR)
IPC: A61K31/427
Filed: 1999-10-15
Abstract: 본 발명은 유착성 단백질이 여러 가지 유형의 세포 표면에 결합되는 것을 저해하고 따라서 세포-세포 및 세포-매트릭스 상호작용에 영향을 미치는 하기 화학식 I의 화합물 뿐만 아니라 이의 약학적으로 사용가능한 염 및 에스테르에 관한 것이다: 
     화학식 I 
     
       
     
     상기 식에서, 
     R 1 , R 2 및 R 3 은 특허청구범위 제 1 항에 주어진 의미를 갖는다. 
     이들은 종양, 종양 전이, 종양 성장, 골다공증, 파제트병, 당뇨성 망막병증, 황반변성, 혈관 개입에 따른 재협착증, 건선, 관절염, 섬유증, 신부전증 뿐만 아니라 바이러스, 박테리아 또는 곰팡이에 의해 일어나는 감염증의 제어 또는 예방에 약학 제제의 형태로 사용될 수 있다.
Patent KR-20010113685-A (KR)
Title: 광섬유 취급 장치
IPC: G02B6/44
Filed: 2000-02-07
Abstract: 여분 길이의 광섬유(33)를 수용하고 보유하기 위한 하우징(11)은 둘레가 서로 접촉하는 대응 둘레 림(19)을 가지는 2 개의 대체로 평평한 지지 부재(12a,12b)를 구비한다.  유지 수단(24,25,26,27)이 제공되어, 상기 림들과 이격된 지점에서 상기 2 개의 지지 부재(12a,12b)를 서로 유지한다.  상기 지지 수단중 하나 이상은 림(19) 영역내에서 또는 적어도 림 영역에서 충분한 탄성을 가짐으로써 굽혀질 수 있어, 광섬유(33)가 2 개의 부재의 접촉 림 사이를 통과하여 하우징(11) 내외로 유입 또는 유출될 수 있다.
Patent KR-20020000771-A (KR)
Title: 디지털 정보 시스템
IPC: G09F27/00
Filed: 2000-02-16
Abstract: 본 발명은 텔레비전 세트가 배치되는 장소를 포함하는 장소에서 정보의 라운드-클럭(round-the-clock) 전송을 위해 데이터 및 원격통신을 위한 인터페이스(26)를 포함하는 디지털 정보 시스템(10)에 정보의 스폿 또는 블록에 대한 정보 카테고리 및 노출 우선순위를 할당하는 방법 및 장치에 관한 것이고, 제어 센터(12)는 프로젝터(22)를 조정 및 제어하기 위한 통신 인터페이스를 가지며, 제어 센터(12)는 실시간으로 노출 리스트를 생성 및 갱신할 수 있다.  상기 노출 리스트에서, 정보가 특정 시간 기간 동안 얼마나 많이 노출되는지가 결정된다.  정보의 단일 스폿 또는 블록에는 특정 정보 카테고리 및 노출 우선순위가 할당되고, 상기 우선순위는 각각의 노출에 대한 우선순위의 특정 유닛를 감소시킨다.  정보는 할당된 우선순위에 따라 디스플레이되어, 정보 시청자를 위한 가시적 비액세스로 인한 노출 중단은 단일 스폿 또는 블록 정보에 대한 특정 시간 주기 동안 똑같이 된다.
Patent KR-20010102406-A (KR)
Title: Radio communication device and radio communication method
IPC: H04W12/00
Filed: 2000-12-22
Abstract: The present invention aims to provide a radio communication apparatus (100) wherein a terminal interface unit (10) is coupled with a radio communication control unit (20) which processes terminal interface unit (10) data which is at layer 2, or higher, and discriminates the data kind of the data at these layers. Further, a confidentiality/integrity processing unit (40) selectively performs a confidentiality processing to encrypt the data along, with integrity processing where an authentication code, subsequently used for detecting tampered data, is generated. Finally, a radio communication unit sends the data from either the radio communication control unit (20) or the confidentiality/integrity processing unit (40). <IMAGE>
Patent KR-20010103041-A (KR)
Title: 화학물질 검출 방법 및 장치
IPC: G01N1/00
Filed: 2000-10-26
Abstract: 불순물에 부착한 검출 대상 물질을 분해하여, 검사 대상 물질에 특유한 화학물질을 불순물로부터 탈리시키는 화학물질 분해수단(10)과, 화학물질을 검출하는 화학물질 검출수단(30)과, 화학물질을 화학물질 검출수단(30)에 선택적으로 도입하는 필터(50)를 갖고, 화학물질 검출결과에 기초하여 검사 대상 물질을 간접적으로 검출한다.  이것에 의해서, 다이옥신등 불순물 입자에 부착한 형태로 발생하는 화학물질을 포함하여, 각종의 화학물질을 고감도 및 실시간으로 측정할 수 있다.
Patent KR-20020003375-A (KR)
IPC: G06F21/00
Filed: 2000-03-10
Abstract: 본 발명은 콘텐츠(201)에 라이센스 정보를 구현함으로써 프로그램에 의해 제공되며 콘텐츠(201)가 필요로 하는 기능에 액세스하는 것을 관리하기 위한 시스템 및 방법에 관한 것이다.  본 발명에 의하면, 인터넷상에서 수익목적 및 비수익목적의 콘텐츠(201) 모두의 분배가 용이해진다.  라이센스 정보를 저장(406)하게 되면, 라이센스 사용자를 식별하고 라이센스 사용자를 위한 기능의 관련 레벨을 유지하는 것이 가능해진다.  이 정보는 기능에 대한 어떤 액세스가 라이센스 사용자에게 허용되는지를 판정하는 라이센스 사용자를 위한 액세스 정책을 나타낸다.  콘텐츠(210)는 이 액세스 정책에 의해 허용되는 한도까지 프로그램의 기능을 이용할 수 있게 된다.
Patent KR-20010112497-A (KR)
IPC: H01J9/227
Filed: 2000-05-22
Abstract: 본 발명은 큰-영역 포토마스크 또는 레티클과 같은 마스크 및 웨이퍼 스테퍼 또는 투사 정열기와 같은 노출 스테이션을 사용하여 리소그래피에서 기하학적 에러를 예상하여 수정하며 디스플레이 패널 또는 반도체 웨이퍼와 같은 워크피스 상에서 상기 마스크의 패턴을 인쇄하는 방법 및 시스템에 관한 것이다. 본 발명에 따른 방법은 마스크 기판, 마스크 라이터, 노출 스테이션에 대한 정보 및/또는 마스크의 기입 이후에 발생하는 처리 단계의 동작에 대한 정보를 수집하는 단계를 포함한다. 더구나, 상기 방법은 이 패턴이 그후에 워크피스 상에 인쇄될때 결합된 정보로부터 패턴에서 발생하는 왜곡을 예상하는 단계와 상기 예상된 왜곡을 감소시키기 위하여 상기 예상으로부터 수정을 계산하는 단계와 상기 왜곡에 대한 상기 수정을 인가하는 동안 상기 마스크 기판 상으로 상기 패턴을 노출하는 단계를 포함한다.
Patent KR-20020010718-A (KR)
Title: 폴딩으로 제조된 다층 구조를 가진 압전 소자
IPC: H01L41/083
Filed: 2000-04-28
Abstract: 본 발명은 전극(6, 7, 21, 22)이 사이에 배열된 다층 구조의 압전층(2, 20)을 구비한 압전 소자에 관한 것이며, 상기 전극(6, 7, 21, 22)은 외부 전극(9, 10)과 교대로 측면 접촉된다.  개별 압전층(4)은 제조 중에 폴딩될 수 있는 연속된 막(2, 20)으로 구성되며, 상기 막에는 전기 전도성 전극(6, 7, 21, 22)이 전체 또는 부분적으로 제공된다.  압전층(2, 20)은, 폴딩 방향을 가로질러서 소정의 간격을 두고 형성된 노치(5, 5.1, 5.2)에서 폴딩함으로써 형성되며, 내부 전극(6, 7, 21, 22)은 폴딩 후 노치(5, 5.1, 5.2)의 내부면에 제공된 금속층에 의해서 형성된다.
Patent KR-20030058882-A (KR)
Inventor: EUM TAE GYOUNG
IPC: F04D29/20
Filed: 2002-01-02
Abstract: PURPOSE: A hydrofoil impeller is provided to manufacture a foil impeller and blade for making a cohesion apparatus having greater cohesion effect easily and economically from a thin plate. CONSTITUTION: A blade of an impeller is manufactured from a cylinder or cone. Hub protrusions(2) are formed on an impeller hub(1), and holes are formed on the impeller hub(1) in order to fix blades(3) in the holes. And bolt holes are also formed on the blades(3) to fix the blades(3) to the impeller hub(1). Impellers having Hydrofoil blades have higher cohesion and stirring effect and power to operate the impellers are reduced.