baber/WOPTO huggingface dataset:
Patent KR-880001672-B1 (KR)
Title: Method and apparatus for shaping snack
Inventor: DAKAGIBARA SAKUICHI
IPC: A23G3/00
Filed: 1984-11-03
Granted: 1988-09-06
Abstract: The belt-like material (4) for snack-foods, mfd. by rolling and cooking the dough of corn-powder and water, is led to a feeding- roller (8) through a chute (7), and is inserted in position so that a roller (5) formed with convex-projections (17) and a roller (6) formed with concave-projections (18) interlock with each other by those projections rotating opposite each other.  The material is cut by a knife (19) of (17) brought into contact with a bent of (18) and it is bent curvedly by interlocking those projections.  The material is transferred by rotating both (5) and (6) and is pressed by interlocking of pressing-formers (13, 14) fixed round both pressing rollers (15, 16) rotated right-angularly against (5)(6) through bevel-gears (27, 24) and (23, 25) from a rotary shaft (10) of (5).
Patent KR-870001646-B1 (KR)
Title: Process for production polyether polyol
Inventor: AOSIMA ASSUSI
IPC: C08G65/28
Filed: 1985-03-27
Granted: 1987-09-18
Abstract: This invention relates to polyether polyol which has good elasticity even at low temp.. Tetrahydrofurane is copolymerized with polyhydric alcohol to give polyether polyol containing 50-99.5 wt.% of oxitetramethylene group.  The copolymerization is catalized by heteropoly acid containing 0.1-15 water molecules per one heteropoly anion.  The polyhydric alcohol is ethylene glycol, propyleneglycol, 1,3-propanediol or 1,4-butane diol.
Patent KR-920002360-B1 (KR)
Inventor: AOGI GADASHI
IPC: B29C49/08
Filed: 1985-05-18
Granted: 1992-03-23
Abstract: 내용 없음.
Patent KR-890000674-B1 (KR)
Title: Containment device for a nail clipper
Inventor: RAVINDRA G ATHALYE
IPC: A45D29/00
Filed: 1985-06-26
Granted: 1989-03-24
Abstract: The container for use in conjunction with a nail clipper, has a bottom planar wall adapted to be located against the bottom surface of the nail clipper.  The bottom planar wall has opposite side edges.  There are side planar walls connected by connectors to the bottom planar walls with a single side planar wall connected to a side edge of the bottom planar wall.  The connectors permit independent movement of each side planar wall relative to the bottom planar wall from a position in aligument with the bottom planar wall to a position perpendicular to the bottom planar wall forming a channel shape.
Patent KR-900001175-B1 (KR)
Title: Procaterol stabilization
Inventor: SELLASY ISAAC G
IPC: C07D215/26
Filed: 1985-08-16
Granted: 1990-02-27
Abstract: A oxidn.- and moisture-resistant salt of procaterol of formula (I) is produced by contacting procaterol and its salt with a monovalent metal or an ammonium salt of lauryl sulphate in an acidic media.  In (I), Y is RCOOH, ROPO3 or ROSO3H; R is C5-20 organic radical.  The stabilization of (I) prevents conversion to undesirable 5-formyl-8- hydroxycarbostyril, propionaldehyde and isopropylamine.  (I) has a beta-adrenergic bronchodilator activity.
Patent KR-900001668-B1 (KR)
Title: Resin dealing type semiconductor device
Inventor: MATSUMOTO HIROSI
IPC: H01L23/34
Filed: 1986-07-30
Granted: 1990-03-17
Abstract: i) a lead frame that loads at least more than one device and constructs a circuit by connecting a thin metal wire to the device; ii) a radiation fin to keep the gap against the rear of loading part of the lead frame; iii) a resinsealed part to seal and form the device, loading part, thin metal wire, and radiation fin.  The above resin-sealed part is composed of a first resin-sealed part of non-filling part and a second resin-sealed part to fill the non-filling part.
Patent KR-910002273-B1 (KR)
Title: Moxacautery
Inventor: PARK CHANG-WAN
IPC: A61H39/06
Filed: 1986-10-06
Granted: 1991-04-11
Abstract: The moxa is produced in a thin bar shape  to  be  placed  for burning at an accurate point on the skin and not to cause  a  skin burn on a large area in cauterizing. Crushed mugwort is mixed with cotton to be spun into a core yarn, which is then passed through a gelatine solution dissolved in the  ratio  of  gelatine  300g  per water one litre to be coated with gelatine and again with  crushed mugwort. The coated yarn is dried to pass through another gelatine solution in the ratio of gelatine 100g per water one litre  to  be coated with another layer of gelatine and mugwort and is dried and cut into unit sizes or wound on a spool.
Patent KR-890001661-B1 (KR)
Title: Rapier loom's weft selecting method
Inventor: RYU SI-MAN
IPC: D03D47/38
Filed: 1986-11-14
Granted: 1989-05-12
Abstract: A system of the method includes a computer, picking sticks (3a,s), a support shaft (11), actuator hubs (12s), in the same number as that of the picking sticks, pivotally fitted to the shaft in a way of one on another with a spacer (13) between adjacent two hubs, actuator levers (12A, 12B) fixed to each other, the lever 12B having a magnet, and electromagnets (19s).  An electric signal of the computer selects an electromagnet (19) to attract a corresponding magnet lever 12B, which pivots with the other lever 12A for actuating a selected stick (3a).  The system simplifies the conventional complex mechanical system by reducing the number of components.
Patent KR-890002254-B1 (KR)
Title: Process for preparing guadininothiazole derivatives
Inventor: CHUNG YU-SOB
IPC: C07D277/28
Filed: 1986-12-13
Granted: 1989-06-26
Abstract: Guanidinothiazole deriv. having formula (I) is prepd. by reacting 3- (2-guanidinothiazol-4-ylmethylthio)propionitrile with sulfamide in haloaromatic compds. i.e. halobenzene, O,P-halotoluene in the presence of lewis acid catalyst i.e. AlCl3, AlBr3. (I) is useful for treating hyperacidity.
Patent KR-960003191-B1 (KR)
Inventor: FALK RICHARD A
IPC: G01N/
Filed: 1987-01-30
Granted: 1996-03-06
Abstract: 내용 없음.
Patent KR-900006852-B1 (KR)
Title: Process for preparing pyridazinone derivatives
Inventor: NAKAJIMA YASUYUKI
IPC: C07D403/12
Filed: 1987-02-07
Granted: 1990-09-22
Abstract: Pyridazinone derivs. of formula (I) are prepd., where Z is halogen, opt. branched C1-10 alkyl, C2-10 alkoxy, C2-10 alkylcarbonyl, C2-4 alkoxyalkyl or anaryl gp. of formula (II), (III) or (IV) (where W is halogen, C1-4 haloalkyl, C1-4 alkoxy or NO2; m is 0-2). 2-t-Butyl-4- chloro-5-(2-(2,6-dimethyl-4-(4-methoxyphenoxy) phenoxy ethylthio)- 3(2H)-pyridazinone is typical. (I) are useful as insecticidal, acaricidal, nematocidal or fungicidal agents or asexpellants of ticks parasitic on animals.
Patent KR-910007720-B1 (KR)
Inventor: TANAKA SHINKO
IPC: G03G9/087
Filed: 1987-02-20
Granted: 1991-09-30
Abstract: 내용 없음.
Patent KR-950004527-B1 (KR)
Title: Tool slide device in machine tool
Inventor: NAGANO GYOJYO
IPC: B23Q1/01
Filed: 1987-02-27
Granted: 1995-05-02
Abstract: A machining apparatus, with tail stocks (3,4) for supporting opposite ends of a shaft-like work-piece (5) to be machined; at least two machining units (12,18) for machining an outer circumference of said work-piece and disposed at different positions between said tail stocks; and at least two pairs of parallel guide surfaces (2a-d) mounted on a bed (1) for guiding said tail stocks (3,4) and said machining units to be movable along said bed (1), wherein adjacent ones of said tail stocks (3,4) and of said machining units (12,18) are mounted on different pairs of said guide surfaces (2a-d).
Patent KR-940010459-B1 (KR)
Title: Stabilizer of stannic ion(ñ)
Inventor: PAULET JEAN-FRANCOIS
IPC: C25D11/06
Filed: 1987-03-24
Granted: 1994-10-22
Abstract: In acid Sn(II)-containing electrolytes for staining anodically produced oxide layers on aluminium or aluminium alloys or for electroplating, the Sn(II) becomes oxidised. Adding substances to the electrolyte, so called stabilisers, may prevent the oxidation to a greater or lesser degree, i.e. Sn(II) can be stabilised to a greater or lesser degree. The effectiveness of the stabiliser furthermore governs the quality of the deposits or the coloration of the anodised layer. The quality of the surface treatment is known to deteriorate in the presence of Sn(IV) in substantial amounts alongside Sn(II) as a consequence of inadequate stabilisation of the Sn(II). An acid Sn(II)-containing electrolyte with a soluble diphenylamine or substituted diphenylamine derivative added stabilises the Sn(II) and yields faultless colorations.
Patent KR-910004770-B1 (KR)
Inventor: MORIMOTO MASHAO
IPC: F04D25/08
Filed: 1987-07-23
Granted: 1991-07-13
Abstract: 내용 없음.
Patent KR-910001733-B1 (KR)
Title: Charging circuit in cordless telephone
Inventor: CHONG KWANG-WOOK
IPC: H04M1/03
Filed: 1988-01-30
Granted: 1991-03-22
Abstract: The charger controls the power providing  to  a  transmission and a reception modules of the main body when a handset is  placed on the main body so that the battery in the handset can be charged quickly. The charger includes a first and  a  second  power  input terminals (1,2) for providing the charge current to the battery, a power switch (SW1) for switching the first power  (Vcc)  providing to  the transmission  or  reception  modules,  an  inverter   for inverting the  charge  completion  signal  and  transmitting  the inverted and non  inverted  charge  signals  to  the  first  input terminal of a microcomputter (50), a mode selection  switch  (SW2) for transmitting a  mode  selection  signal  generated  by  user's choice and provided  to  a  second  input  terminal  (I2)  of  the microcomputer (50) and a first and a second switching circuits for controlling the power flowing into the transmission and  reception modules.
Patent KR-920008172-B1 (KR)
Inventor: KARAKAWA KATSUO
IPC: F16L57/00
Filed: 1988-02-09
Granted: 1992-09-24
Abstract: 내용 없음.
Patent KR-960000865-B1 (KR)
Title: Halocarbon blends for use as a refrigerant
Inventor: BIVENS DONALD BERNARD
IPC: C09K5/04
Filed: 1988-06-08
Granted: 1996-01-13
Abstract: A unique refrigerant containing three or more halocarbons, each halocarbon after the first having a successively higher boiling point. The refrigerant has a temperature/pressure relation substantially equal to FC-12. Also provided is a method for producing cooling and a method for producing heating using this refrigerant.
Patent KR-960001204-B1 (KR)
Inventor: MATSUMOTO KUNIOMI
IPC: C07D275/03
Filed: 1988-07-20
Granted: 1996-01-24
Abstract: 내용 없음.
Patent KR-920003154-B1 (KR)
Title: Method of coating color filter on lcd panel
Inventor: KWAK JIN-OH
IPC: G02F1/133
Filed: 1988-07-23
Granted: 1992-04-20
Abstract: A method for coating color filter on  liquid  crystal  panel, which has a front polarizing angle of 350-650, a  rear  polarizing angle of -150-400, a total twist angle of 2400,  is  characterized by coating green filter 10 % thicker  than  red  or  blue  filter. Especially in the range of  light  way  difference  red  and  blue filters are coated  800  angstrom  thick  and  green  filter  900 angstrom thick to give equal transmittance of colors. This  method can make it possible to color liquid  crystal  display  panel  and provide much clearer screen of the panel by  improving  black  and white characteristic  by  differently  coating  color  filters  in thickness according to their transmittance of colors.
Patent KR-960008247-B1 (KR)
Inventor: WOOD MICHAEL A
IPC: B01D3/14
Filed: 1988-07-29
Granted: 1996-06-21
Abstract: 내용 없음.
Patent KR-910006053-B1 (KR)
Inventor: SAKANIKI MASHAYUKI
IPC: H04M1/27
Filed: 1988-09-10
Granted: 1991-08-12
Abstract: 내용 없음.
Patent KR-970002642-B1 (KR)
Title: Androstane 17-carboxylic-acid esters, their preparation and medicaments containing them
Inventor: JARREAU FRANCOIS-XAVIER
IPC: C07J41/00
Filed: 1988-10-04
Granted: 1997-03-07
Abstract: The invention relates to androstane-17-carboxylic acid esters, represented by general formula (I):   <IMAGE>   wherein R1 represents a lower alkyl group containing 1 to 4 carbon atoms, a lower alkyl group containing 2 to 4 carbon atoms substituted by an amino group, or an aralkyl group from 6 to 12 carbon atoms, R2 and R3, which may be the same or different, represent a hydrogen atom or a lower alkyl group containing 1 to 4 carbon atoms, R4 represents a hydrogen atom, a hydroxy group or an acetoxy group, R5 represents a hydroxy or acetoxy group, or R4 and R5 represent together a divalent alkylenedioxy group, R6 represents a hydroxy group, a methoxy group, or an acetoxy group, R7 represents a methyl group or a hydroxymethyl group, R8 represents an hydrogen atom or a hydroxy group and <IMAGE>  represents either a   <IMAGE>  group or a   <IMAGE>  carbon atom having the double linkage in the 4- or 5-position of the steroid nucleus. Such esters are prepared by coupling reaction of the corresponding 14-azido-derivatives with a sugar, followed by a reduction. Application in therapy, especially in the treatment of heart failure.
Patent KR-900008827-B1 (KR)
Inventor: KIM BYEONG-SANG
IPC: A23B7/14
Filed: 1988-10-28
Granted: 1990-11-30
Abstract: 내용 없음.
Patent KR-950014152-B1 (KR)
Title: Power-on reset circuit
Inventor: KIM HAK-KUN
IPC: G06F1/00
Filed: 1988-11-19
Granted: 1995-11-22
Abstract: The power on reset control circuit in a power on reset circuit having a reset unit for driving MOS transistors and applying a reset signal, comprises: a reset control unit wherein a first NOR gate inputs the output of the reset unit at one input terminal and the output of a second NOR gate which inputs an input signal and the output of a third NOR gate at the other input terminal and outputs a reset signal via an inverter. It can perform a stable reset function without affected by the parameter of resistor and condenser by applying a reset signal for a desired time period by a user.
Patent KR-920000120-B1 (KR)
Title: The method of preventing solidification for powder detergent
Inventor: LEE HWAN
IPC: D06F39/02
Filed: 1988-12-30
Granted: 1992-01-09
Abstract: The method checks the phenomenon of washing powder dispensing hole getting choked by solidifying the powder by  steam  generated from warm water. The method comprises a first step of switching on a cool water valve if a set seconds  has  passed  after  switching onthe washing powder valve,a second step of switchig off the  cool water valve after a set  seconds  has  passed,  a  third  step  of switching  off  the  washing  powder  valve   and   simultaneously switching on the warm/cool water valves,  and  a  fourth  step  of operating a main washing routine after  switching  off  the  water valves if the set seconds has passed.
Patent KR-930002714-B1 (KR)
Title: Method for preparing of coagulating particles of polymer latex and apparatus thereof
Inventor: SHIN ON-KON
IPC: C08J3/12
Filed: 1988-12-31
Granted: 1993-04-09
Abstract: In the process for preparing the spherical solid particle  of thermoplastic polymer latex by spraying into the solidifying  bath (1), the recovering solution (3,3')  at  solidifying  temp.  flows down as thin layer on inner wall (2) of the  bath  coated  with  a wave phase glass; the air at the solidifying  temp.  is  blown  in through the air feeding pipe (11) and air  sprayer  (10),  forming air swirl; the solidifying gas or agent  is  sprayed  through  the nozzle (9) in the same direction of the  air  swirl;  the  polymer latex and solvent of hydrophobic and higher specific gravify  more than water are sprayed through the nozzle  (6),  as  to  form  the particle size of 50 μm - 2 mm, and stayed for 30 sec  -  10  min.; the bath (1) is in the state of minus atmosphere.
Patent KR-0185167-B1 (KR)
Inventor: IWAMOTO KOJIP
IPC: G02B7/28
Filed: 1989-03-02
Granted: 1999-05-01
Abstract: 비디오 카메라용 초점 제어 장치는, 제1렌즈 위치와 제2렌즈 위치 사이에 있어서의 렌즈 위치의 변화에 대한 비디오 신호중의 소정 주파수 성분 값의 변화를 도시하는 제1기울기를, 제1렌즈 위치에서 샘플링된 비디오 신호의 소정의 주파수 성분의 신호와, 제2렌즈 위치에서 샘플링된 비디오 신호의 소정의 주파수 성분의 신호로부터 얻으며, 제2렌즈 위치와 제3렌즈 위치 사이에 있어서의 렌즈 위치의 변화에 대한 비디오 신호중의 소정 주파수 성분의 값의 변화를 도시하는 제2기울기를, 제2렌즈 위치에서 샘플링된 비디오 신호의 소정의 주파수 성분의 신호와, 제3렌즈 위치에서 샘플링된 비디오 신호의 소정의 주파수 성분의 신호로부터 얻으며, 제1기울기와 제2기울기의 변화에 따라서 렌즈의 이동 속도를 제어함으로써 오버런양을 감소시킨다.
Patent KR-0133922-B1 (KR)
Inventor: IWADANI MITSUO
IPC: B41J13/00
Filed: 1989-03-06
Granted: 1998-04-20
Abstract: 내용없음.
Patent KR-920001109-B1 (KR)
Title: Vdp still signal detecting circuit
Inventor: CHUNG TAE-HONG
IPC: H04N9/77
Filed: 1989-05-03
Granted: 1992-02-01
Abstract: The circuit counts main clock signals and compares them  with vertical synchronous signals for accurate COMB filtering to  detec VDP signal. The circuit comprises a  synchronous  signl  extractor (1) for extracting vertical,  horizontal,  and  color  synchronous signal from video signal, a  phase  difference  detector  (4)  for discriminating normal signal or VTR signal by comparing them  with clock pulses generated by a horizontal  and  a  color  synchronous voltage generator (2,3), a VDP detector (5) for discriminating VDP halt signal by comparing clock pulse with 28 MHz generated by  the color synchronous voltage generator (3) with vertical  synchronous signal, an AND gate for identifying NTSC  signal  when  states  of output signals of the detectors (4,5)  are  high  and  a  dividing circuit (7) for dividing  the  brightneww  signal  and  the  color signal by the output signal of the AND gate.
Patent KR-920003519-B1 (KR)
Title: Error bit detecting and correcting circuit
Inventor: SEOK JAE-BONG
IPC: G06F11/10
Filed: 1989-06-30
Granted: 1992-05-02
Abstract: The circuit includes a gate section (10) which  consists  of: first and  second  parity  generating  sections  (PG1)(PG2)   for generating parity bits by receiving 5-bit data; third  and  fourth parity generating sections (PG3)(PG4) for generating  parity  bits by receiving 4-bit data; and first to fourth AND gates (A0-A3) for logic-combining control signals. A  parity  storing  section  (20) includes first to fourth memories (M1-M4), and stores the  outputs of the AND gates (A0-A3). Another gate section (30) includes first to fourth exclusive  OR  gates  (B0-B3),  and  logic-combines  the outputs of the first to fourth memories (MK1-M4) and  the  outputs of the first to fourth parity  generating  sections  (PG1-PG4).  A decoding section (DEC) decodes  the  output  of  the  second  gate section (30) to detect errors.
Patent KR-920007497-B1 (KR)
Inventor: NAKANE MASAMI
IPC: A61P37/08
Filed: 1989-09-19
Granted: 1992-09-04
Abstract: 내용 없음.
Patent KR-0144733-B1 (KR)
Inventor: ICHIMURA ISAO
IPC: H04N5/94
Filed: 1989-11-14
Granted: 1998-07-15
Abstract: 내용없음
Patent KR-950000918-B1 (KR)
Title: Star fastners
Inventor: POTNECK FRANK R
IPC: F16B15/00
Filed: 1989-04-12
Granted: 1995-02-03
Abstract: A star shaped fastener having at least three fins radiating from a central core with the fin-included angle in a five finned embodiment being between 72 to 98 degrees which configuration reduces the fabricated material by 50% and increases the surface area by 15%-85% compared to a common round nail of equal radius.
Patent KR-930010472-B1 (KR)
Inventor: MAEDA SHIGEMI
IPC: G11B27/034
Filed: 1990-01-09
Granted: 1993-10-25
Abstract: 내용 없음.
Patent KR-0138517-B1 (KR)
Title: Artificial airway device
Inventor: BRAIN ARCHIBALD IAN JERENY
IPC: A61M16/04
Filed: 1990-03-21
Granted: 1998-04-30
Abstract: An artificial airway device, for use in place of an endotracheal tube to facilitate lung ventilation in an unconscious patient, is in the form of a laryngeal mask comprising an airway tube (10) opening into the interior space or lumen of a mask portion (12) whose periphery (14), which may be inflatable, is adapted to seal around the inlet (36) to the larynx (38), thus securing the patient's airway and permitting spontaneous or controlled ventilation. Drainage from the anterior region of the mask or directly from the oesophagus is provided by suitably arranged drainage tubes arranged for insertion with the mask. A soft, flexible upstanding collar (27) is carried by the periphery (14) of the mask, so as to surround the lumen of the mask and improve the sealing contact with the tissues around the circumference of the laryngeal inlet (36).
Patent KR-950008515-B1 (KR)
Title: Hardenable, flourinated copolymer, process for its manufacturie and its application in varnishes and paints
Inventor: PARTICK KAPPLER
IPC: C08F16/14
Filed: 1990-04-28
Granted: 1995-07-31
Abstract: Curable copolymer containing residues of copolymerisation of a fluoro monomer and of a hydroxylated and/or epoxidised allyl ether, characterised in that:
 a) the fluoro monomer residues originate from the combination of vinylidene fluoride and of another fluoro monomer chosen from tetrafluoroethylene, chlorotrifluoroethylene and hexafluoropropene or of a mixture of at least two of these three monomers
 b) the allyl ether residues originate from one of the compounds of formula: 
<IMAGE>
 with "p" a number chosen from 0 to 3
 and X being (CH2)q-O with "q" a number chosen from 1 to 3
 R5 and R6, identical or different, being chosen from H, CH2OH, CH2-CH2-OH and CH3
 R3 and R4, identical or different, being H or OH
 and "n" and "m", identical or different, being numbers chosen from 0 to 2. 
<??>This curable copolymer is obtained by copolymerisation in solution in an organic solvent. In solution in a suitable solvent, this copolymer is employed in paints and varnishes.
Patent KR-940002344-B1 (KR)
Inventor: HORN GARY R
IPC: G06F/
Filed: 1990-05-21
Granted: 1994-03-23
Abstract: 내용 없음.
Patent KR-930006533-B1 (KR)
Title: Coder and decoder of digital tv
Inventor: KIM DO-NYON
IPC: H04N7/12
Filed: 1990-10-25
Granted: 1993-07-16
Abstract: The device provides a combined use device  of  source  coding and decoding with low power consumption and low cost by using  TTL and C MOS RAM. It includes a difference  computing  section  (401) for applying digital video signal which  isn't  compressed,  to  a video signal outputter (430),  a  reproducing  section  (402)  for processing the data from the difference computing section (401) to reproduce original digital video signal, and an estimating section (404) for receiving the output of the  reproducing  section  (402) and 681 sample delayed signal and  outputting  to  the  difference computing section (401).
Patent KR-930007494-B1 (KR)
Title: Sliding document cover apparatus of a copier
Inventor: SONG YONG-IL
IPC: G03G15/00
Filed: 1990-11-01
Granted: 1993-08-11
Abstract: A convenient slide cover giving  better  copying  quality  is presented. The, cover comprises a vertical covering  member  which contains vertical covering, a  horizontal  covering  member  which contains horizontal one. It can take  the  place  of  opening  and closing the cover, and can be used auxiliarily.
Patent KR-0160974-B1 (KR)
Title: Process for the preparation of molluscicidal 2,4,5-tribromopyrrole-3-carborile compounds
Inventor: KAMESWARAN VENKATARAMAN
IPC: A01N43/36
Filed: 1990-12-06
Granted: 1998-12-01
Abstract: There is provided a method of preparation of 2,4,5-tribromopyrrole-3-carbonitrile compounds in a single step from their 2-trihaloacetylpyrrole-4-carbonitrile precursors. The 2,4,5-tribromopyrrole-3-carbonitrile compounds are useful as molluscicidal agents.
Patent KR-0158190-B1 (KR)
IPC: B29L9/00
Filed: 1990-04-04
Granted: 1999-01-15
Abstract: 공지된 이런 종류의 방법 및 장치에서 휨시 의도치 않는 층의 변위가 서로 일어나고, 더군다나 오직 직각의 휨만이 가능하다. 
     그러나 본 발명에 따르는 방법에서는 전 휨가공중 실질적인 휨압력이 굴곡될 수 있는 시이트의 끝단부(2)위에 균등하게 작용될 뿐만 아니라, 상기 휨압력의 작용중에 상이한 적층위에서 시이트 자유단부(2)의 방향(F4)으로 인장력이 가해진다.
Patent KR-940008105-B1 (KR)
Title: Receiving line automatic converting circuit for differential line driver
Inventor: BAE SANG-MIN
IPC: H04L25/02
Filed: 1991-01-16
Granted: 1994-09-02
Abstract: The circuit includes a comparator for discriminating the porality of the receiving line, a line converting circuit for converting the polarity of the line to be connected in a constant direction, a pulse generator for supplying a clock to a flip-flop of the line converting circuit, and a connection confirming circuit for discriminating whether the output of the line converting circuit is correctly connected, thereby easily connecting the line.
Patent KR-940003608-B1 (KR)
Inventor: MOMOSE HISAYO
IPC: H01L21/8246
Filed: 1991-01-22
Granted: 1994-04-25
Abstract: 내용 없음.