baber/WOPTO huggingface dataset:
Patent KR-890002539-B1 (KR)
Title: Forming method for coated pvc on the metalic flexible pipe
Inventor: O SUNG-KUN
IPC: B29C47/02
Filed: 1986-07-29
Granted: 1989-07-18
Abstract: A conventional flexible metal pipe, is pulled through an extruder to be covered with PVC-melt on the outer surface of the flexible pipe and is printed on the surface of PVC.  Evacuation of air out of the flexible pipe, of which one side connects to a vacuum pump and another side being sealed, by the vacuum pump while passing through the preheater kept under the constant temperature of 80-100 deg.C (or 100-180 deg.C) results in the PVC coating sucked in close adhesion to the recesses of the metal surface of the pipe.
Patent KR-890004077-B1 (KR)
Title: Grain delibering device for detecting humidity
Inventor: IKEGAWA HIROSI
IPC: G01N27/02
Filed: 1986-09-01
Granted: 1989-10-18
Abstract: A grain delivering device comprises a feed roller (10) having a threaded groove (13) on the peripheral surface thereof and a guide body (12) accessible to the groove (13).  The groove is dimensioned so as to nip and retain the grain in ones.  The device is delivering the grain in ones by receiving it from the upper side of the feed roller (1) and the guide body (12) and by the rotaition of the feed roller (10).  The guide body (12) has a wall part so high as to nip and retain the grain between the guide body (12) and the threaded groove (13).
Patent KR-950006645-B1 (KR)
Inventor: SELFRIDGE PHILIP T
IPC: C10C3/02
Filed: 1986-10-14
Granted: 1995-06-21
Abstract: 내용 없음.
Patent KR-890004413-B1 (KR)
Title: Method assigning and performing program of key phone system
Inventor: LEE TAE-KYU
IPC: H04M3/60
Filed: 1986-10-23
Granted: 1989-11-03
Abstract: The system comprises CPU (10) executing a built-in program, allowing the user to allocate unused stations, by identifing the input data received from subset (60), memory controller (20) receiving the address generated by the CPU (10) to controll memory (30), buffer (40) buffering the data received from the subset key, data shift register (50) disposed between the buffer (40) and the subset (60).
Patent KR-890004562-B1 (KR)
Title: Crystalline cephalosporin monohydrate and its process
Inventor: LORD GARY E
IPC: C07D501/18
Filed: 1986-11-04
Granted: 1989-11-15
Abstract: A crystalline (7R)-7-amino-3-(1'-Pyridinium-methyl)-3-cephem4- carboxylate monohydrate of formula (I) is prepd.  A dihydrochloride dihydrate of cpd. (I) is suspended in EtOH/CH2Cl2 at -40-0≰C, and then a base is added to give (I). (I) is defined by a X-ray powder diffraction pattern obtd. with Ni-filtered Cu radiation of wavelength 1.5418 A.  (I) is useful as an intermediate for the prepn. of antibacterial ceftazidine.
Patent KR-930007814-B1 (KR)
Inventor: BOBERG MICHAEL
IPC: A23K20/195
Filed: 1986-11-20
Granted: 1993-08-20
Abstract: 내용 없음.
Patent KR-890003066-B1 (KR)
Title: Process for fermentating and making beverage from pyogo mushroom
Inventor: LEE JI-YOL
IPC: A23L1/28
Filed: 1986-12-24
Granted: 1989-08-21
Abstract: A method for preparing a beverage of pyogo mushroom is presented. Thus, a seed culture of pyogo mushroom was inoculated in a malt ext. medium (pH 6.0) and cultured at 25≰C for 7-10 days to give pyogo mycelium ext. soln. [A . 5Kg  pyogo mushroom and 1Kg dried pyogo mushroom were soaked in 20 liter 5%-EtOH for 1 wk to give mushroom ext. soln. [B .  On the other hand, ginseng ext. [C  was obtained by mixing 100g undried ginseng with 2 liter H2O and crushing.  A mixt. contg. 100 parts [A , 2 parts [B , 1 part [C , and 3 parts sucrose was boiled for 30 mine to give a pyogo mushroom beverage.
Patent KR-890002343-B1 (KR)
Title: Peeling machine for platycodon
Inventor: YUN HO-YONG
IPC: A23N7/00
Filed: 1986-12-30
Granted: 1989-07-01
Abstract: A grinding barrel (1) having inner and outer walls, is driven by vibrator motor (3).  Baffle rods (4) are spirally fixed on the inner wall.  An outlet (9) and an inlet (10) are connected with a water tank (12) and a circulation pump (13).  A grinding media (14) is placed in the grinding barrel (1) for platycodon to be peeled by the rotation of the inner wall.
Patent KR-900003587-B1 (KR)
Title: Surface treating method of articles by quenching system
Inventor: JOO SUNG-HUM
IPC: C23G3/00
Filed: 1987-07-09
Granted: 1990-05-26
Abstract: The method for continuously treating the surface of articles comprises (i) traveling the stand, on which articles are fixed, toward the quenching bath, (ii) dipping the stand into the quenching bath and rotating at a low speed, (iii) hoisting the stand in the protection cask, and (iv) removing the plating solution with which articles are stained by means of rotating at a high speed.
Patent KR-950008206-B1 (KR)
Inventor: REIFSCHNEIDER WALTER
IPC: A61K31/275
Filed: 1987-11-13
Granted: 1995-07-26
Abstract: 내용 없음.
Patent KR-910000495-B1 (KR)
Inventor: LEIDAL SHIRLEY
IPC: B29K75/00
Filed: 1986-09-29
Granted: 1991-01-26
Abstract: 내용 없음.
Patent KR-910001437-B1 (KR)
Title: Process for the preparation of 1-amino-2-bromo -4- hydroxy anthraquione
Inventor: SON BYUNG-KI
IPC: C07C225/36
Filed: 1988-04-27
Granted: 1991-03-07
Abstract: A    method    for    preparing    1-amino-2-bromo-4-hydroxy anthraquinone of formula (I) comprises (a) reacting a compound  of formula (II) with H2O2 and  HBr  in  the  30-75%  H2SO4  soln.  to produce a compound of formula (IV); and (b) hydrolyzing (III) with fuming sulfuric acid. (I)  is  used  as  an  intermediate  in  the manufacture of dispersing dyes. The method gives a high purity  of cpd. (I)
Patent KR-910003786-B1 (KR)
Title: Developing power factor of ac/dc converter
Inventor: JI KYONG-HA
IPC: H02M1/42
Filed: 1988-05-13
Granted: 1991-06-12
Abstract: Circuit offers advantages of minimum harmonic noise,  compact size, and light weight as well as improving  power  factor  (D.F), while the  old  method  using  step-up   converter   scheme   has disadvantages of heavy weight, low reliability and high cost  even if ach ieving high p.f.. This method basically consists of  diodes (D51- D53,D61,D62)  and  condensers   (C1,C1',C2,C2').   When   the full- wave rectified voltage  increases,  current  (iC1,iC2)  flows through  the  condensers  (C1,C2',C2,C2')  to  charge.   Condenser voltages (Vc2,Vc1') are (1/3)Vsp(Vsp: peak of AC  voltage),  which means the ripple of VRL  is  less  than  (1/3)  Vsp  assuming  C1= (1/2)C2 and C2'= (1/2)C1', and  p.f  is  0.85-0.95.  this  circuit doesn't adopt any active component such as  switching  transistor, and then increases reliability and makes design easy.
Patent KR-910002713-B1 (KR)
Title: Defrost heater controlling method
Inventor: RYU HO-JUNG
IPC: F25D21/08
Filed: 1988-07-15
Granted: 1991-05-03
Abstract: The method includes a first step for operating  a  defrosting heater (10) when a bimetal (12) is not  shorted  and  setting  the state of defrost a second step for displaying defrosting operation or state of failure when the bimetal (12) is shorted, a third step for displaying  finished  state  of   defrost   after   operating defrosting heater when a bimetal does not show failure,  a  fourth step for returning to main routine after resetting disorder  timer or safe timer when the set time is up.
Patent KR-910003531-B1 (KR)
Inventor: MILLER LANE R
IPC: B60G17/015
Filed: 1988-07-21
Granted: 1991-06-04
Abstract: 내용 없음.
Patent KR-970011529-B1 (KR)
Title: Switching power supply
Inventor: RILLY GERARD
IPC: H02M3/335
Filed: 1988-09-29
Granted: 1997-07-11
Abstract: In a switched mode power supply, an output switch is coupled to the primary winding of a transformer and to an input supply voltage derived from the AC mains voltage. A driver stage is coupled to the output switch and to a switched control voltage for producing on-off switching of the output switch between conduction and cutoff to generate a pulse voltage in a secondary winding of the transformer. A supply circuit including a rectifier is coupled to the pulse voltage for generating an operating voltage. A control circuit, responsive to the feedback of the output voltage, modulates the control voltage in a manner that varies the on-off switching of the output switch to stabilize the operating voltage. A bias voltage, derived from the AC mains voltage, and available during a startup interval of the power supply, is coupled to the driver stage during the startup interval. The bias voltage inhibits conduction of the output switch until sufficient time has elapsed after initiation of startup to enable the control circuit to generate a control voltage that is adequate to safely produce the on-off switching of the output switch.
Patent KR-950008628-B1 (KR)
Inventor: NIESEN LAWRENCE J
IPC: B01D63/00
Filed: 1987-06-09
Granted: 1995-08-03
Abstract: 내용 없음.
Patent KR-960012397-B1 (KR)
Inventor: CHRISTOPHER CARLIN BRIAN ANTHO
IPC: A61P1/04
Filed: 1987-07-29
Granted: 1996-09-20
Abstract: 내용없음.
Patent KR-950005677-B1 (KR)
Inventor: GERD NASHAN
IPC: C10B5/10
Filed: 1987-12-18
Granted: 1995-05-29
Abstract: 내용 없음.
Patent KR-930001852-B1 (KR)
Inventor: MORI SHIGEO
IPC: G03F1/48
Filed: 1988-06-06
Granted: 1993-03-15
Abstract: 내용 없음.
Patent KR-930001206-B1 (KR)
Inventor: CAMPAELL MICHAEL J
IPC: C01B21/04
Filed: 1989-03-31
Granted: 1993-02-22
Abstract: 내용 없음.
Patent KR-0131073-B1 (KR)
Inventor: WOOD JAMES A
IPC: B60T8/58
Filed: 1989-05-16
Granted: 1998-04-21
Abstract: 내용　없음
Patent KR-0151723-B1 (KR)
Title: Thermal flux mass flow meter
Inventor: MICKLER BRIAN E
IPC: G01P5/10
Filed: 1989-06-27
Granted: 1998-12-01
Abstract: A mass flowmeter for measuring velocity of a flowing fluid employs a thermal sensor (11). The sensor (11) generates heat when supplied with electrical power. A heat sink (25) is located in the fluid flow a selected distance normal to the line of flow of fluid from the sensor. Electrical power is supplied to the sensor (11) to cause a thermal flux to flow from the sensor (11) to the heat sink (25). The flowing fluid modulates this flux. A circuit (23) measures the temperature of the sensor and computes the velocity of the flowing fluid from that measurement.
Patent KR-920003348-B1 (KR)
Title: Fax
Inventor: KANG BYUNG-DONG
IPC: H04N1/44
Filed: 1989-08-18
Granted: 1992-04-27
Abstract: The facsimile includes a central processing  section  (2),  a modulating  and  demodulating  section  (1),  and  an  interfacing circuit for a privacy device (6). The modulating and  demodulating section (1) is  connected  through  parallel  buses  (PA)  to  the central  processing  section  (2)  to  transmit  300  bps  control signals. The other end of the section (1) is connected to  an  NCU (network control unit), and a decoding and buffering  section  (3) is  connected  to  both  the  section  (10)  and  to  the  central processing section (2)  to  transmit  high  speed  data.  All  the signals of RS-232C are supplied to  a  privacy  interface  circuit (100) which is connected to the privacy device (6).
Patent KR-920003748-B1 (KR)
Inventor: FUJIMOTO AKIHIKO
IPC: G05B19/4093
Filed: 1989-08-25
Granted: 1992-05-09
Abstract: 내용 없음.
Patent KR-960006391-B1 (KR)
Title: 13-substituted milbemycin derivatives, their preparation and the use
Inventor: MORISAWA YASUHIRO
IPC: C07H19/01
Filed: 1989-09-02
Granted: 1996-05-15
Abstract: Compounds of formula (I):: <CHEM> [in which: R<1> and R<2> are hydrogen, halogen, cyano, nitro, alkyl, substituted alkyl, alkoxy, alkoxyalkoxy, -(CH2)nNHR<9>, (where n is 0, 1 or 2, and R<9> is hydrogen or alkyl), -(CH2)nNR<9>C(=O)R<6> (where R<6> is hydrogen, alkyl, substituted alkyl, alkenyl, alkynyl, cycloalkyl, substituted cycloalkyl, aryl, or heterocyclic), -(CH2)nNR<9>COCOR<6>, -(CH2)nR<9>COCOOR<7> (where R<7> is alkyl, cycloalkyl or aralkyl), -(CH2)nNR<9>CHR<6>NHCOR<6>, -(CH2)nNR<9>CHR<6>NHCONHR<6>, -(CH2)nNR<9>CHR<6>NHCOOR<7>, -(CH2)nNR<9>C(=Y)YR<6> (where each Y is oxygen or sulphur), -(CH2)nNR<9>C(=Y)NR<6 min >R<6 min > (where each R<6 min > is R<6>, or the two and the nitrogen form a heterocyclic group), -(CH2)nNR<9>C(=Y)NR<6 sec >R<6 sec > (where each R<6 sec > is R<6>, or any two of R<6 sec > and its nitrogen forms a heterocyclic group), -(CH2)nNR<9>C(=Y)NR<6>NHZ (where Z is -COOR<7>, -COR<6> or -SO2R<6>), -(CH2)nNR<9>C(=NR<1><0>)NHR<1><0> (where each R<1><0> is R<6>, cyano, nitro, -COOR<7> or -COR<6>), -(CH2)nNR<9>C(=NR<1><0>)R<6>, -(CH2)nNR<9>SOmR<6> (where m is 1 or 2), -CONHR<6>, or -COOR<7>), R<3> and R<4> are each hydrogen, alkyl or alkoxy; R<5> is methyl, ethyl, isopropyl or sec-butyl; and X is hydroxy, alkanoyloxy, substituted alkanoyloxy or hydroxyimino] and its salts have valuable acaricidal, insecticidal and anthelmintic activities.
Patent KR-960006151-B1 (KR)
Inventor: TAJIMA MINORU
IPC: B29C47/00
Filed: 1989-11-09
Granted: 1996-05-09
Abstract: 내용 없음.
Patent KR-920008213-B1 (KR)
Title: Audio recording circuit
Inventor: KIM YONG-DAE
IPC: G11B5/027
Filed: 1989-12-27
Granted: 1992-09-25
Abstract: A circuit digitally records the voice and audio signals in  a storage equipment and reproduces the signal through the speaker or the earphone simultaneously. The circuit  comprises  a  microphone input section (100), an audio signal input section (200), a second switch (SW2) for selectively switching the  microphone  and  audio signals, a channel  selector  (60)  for  converting  analog  voice signal into/from digital voice signal, a third  switch  (SW3)  for selectively  switching  digital  voice  signal  from  the  channel selector and digital voice signal from a voice  storage  equipment (70), and an output section  (300)  for  outputting  analog  voice signal from the channel selector.
Patent KR-920009665-B1 (KR)
Title: Circuit which discriminates input signal in key matrix
Inventor: LEE HAK-MIN
IPC: G09G3/36
Filed: 1989-12-29
Granted: 1992-10-22
Abstract: The key scan output is replaced by segment  drive  signal  to replace key scan output pins by segment pins. The circuit includes a level changer (6) for  changing  level  of  the  segment  signal transmitted to segment output pins (VS) when key (K) is connected, a waveform modulator (7) for modulating  output  waveform  of  the level changer (6), a  gate  logic  controller  (8)  for  combining output signal of  the  waveform  modulator  (7)  and  the  segment signals, a multiplexer (3) for selecting the  segment  signals  or key scan signal (VT) according  to  control  signal  (VC),  and  a waveform modulator  (11)  for  modulating  output  signal  of  the multiplexer to apply to key (K).
Patent KR-930000461-B1 (KR)
Title: Projecting device using lcd
Inventor: KO HAN-IL
IPC: H04N9/31
Filed: 1990-03-09
Granted: 1993-01-21
Abstract: The device using a braun tube  and  liquid  crystal  element, projects bright and clear color image on the large  sized  screen. The device employing a light source (900),  triple  speed  circuit (100), shutter driving circuit (400), screen (224) includes: braun tube (200) for converting serial R,G,B signal from output terminal of the circuit (100) to black/white picture;  LC  optical  element (221) for changing the direction of  polarized  light;  polarizing filter (222) for reflecting or projecting incident light;  primary reflex mirror (770) for totally reflecting light from  the  source (900); UV blocking filter for blocking the UV from light reflected from the mirror (770).
Patent KR-920010453-B1 (KR)
Title: Data control system of optical disk
Inventor: JO YONG-SOP
IPC: G06F3/06
Filed: 1990-03-15
Granted: 1992-11-28
Abstract: The data transmitted from an optical disk is received  by  an optical disk ROM decoder from the point  that  data  reception  is stopped due to buffer overflow.  The  control  system  includes  a control signal  generator  (20)  for  generating  control  signal according to counter clock signal and buffer overflow signal (BOF) transmitted from a microprocessor  (5),  an  AMD  gate  (AN1)  for operation output signals of the control  signal  genertor,  a  bit clock generator (BCK) and a counter (2b), an  end  point  detector (2d) for  shifting  serial  data  of  an  optical  digital  signal processing unit (1), for latching 4-byte data when overflow occurs in buffer RAM (4), and  for  comparing  latched  4-byte  data  and current input serial data to detect end point data when buffer RAM overflow is released, and a switching unit  (2f)  for  interfacing serial data and bit clock signal to an optical  disk  ROM  decoder (3).
Patent KR-960005538-B1 (KR)
Inventor: KURA TETSUZO
IPC: B65G35/06
Filed: 1990-04-26
Granted: 1996-04-26
Abstract: 내용 없음.
Patent KR-940000059-B1 (KR)
Title: Process of synthesis of azines and application for hydrazine production
Inventor: SCHIRMANN JEAN-PIERRE
IPC: C01B21/16
Filed: 1990-05-21
Granted: 1994-01-05
Abstract: Continuous process for the synthesis of azines from aqueous hydrogen peroxide, ammonia and a reactant containing a CO group, (i) a working solution circulating in a loop between the azine reactor and a treatment device and (ii) the introduction of a product preferably chosen from acetic acid, ammonium acetate and acetonitrile. The azines are hydrolysed to obtain hydrazine hydrate.
Patent KR-930006110-B1 (KR)
Inventor: WATANABE YUICHIRO
IPC: B21B13/14
Filed: 1990-06-05
Granted: 1993-07-07
Abstract: 내용 없음.
Patent KR-920010859-B1 (KR)
Title: Membrane producing method
Inventor: LEE YONG-MU
IPC: B01D61/00
Filed: 1990-08-07
Granted: 1992-12-19
Abstract: The membranes, which have a higher  water  permeability,  are formed by reacting chitosan with alkali, organic  acid  and  vinyl monomer. The alkali is sodium  hydroxide  or  pottasium  hydroxide aqueous solution of 0.1-2 N. The organic acid is  chloro  sulfonic acid or chloro acetic acid. Pref., the vinyl monomer  has  acidic, basic or the other functional groups  which  give  the  acidic  or basic groups. The membrances are used to  separate  a  mixture  of water and organic compound by vaporation.
Patent KR-940005683-B1 (KR)
Inventor: FUKUSHI ISAO
IPC: G11C11/41
Filed: 1990-09-20
Granted: 1994-06-22
Abstract: 내용 없음.
Patent KR-940010655-B1 (KR)
Inventor: SHIROYAMA SHIGERU
IPC: F02N11/00
Filed: 1990-09-25
Granted: 1994-10-24
Abstract: 내용 없음.
Patent KR-0157616-B1 (KR)
Inventor: SEKI TAKAHIDE
IPC: H01H33/02
Filed: 1990-11-26
Granted: 1998-11-16
Abstract: 접촉자간의 개리에 의하여 생기는 아크의 에너지를 이용하여 소호성 가스를 승압하는 승압실과, 가동접척자의 개리동작에 고나련하여 작동하는 피스통을 구비하는 흡입실을 가지는 개폐기에 있어서, 상기승압실내에 아크에너지에 의한 상승압력을 보류한 후, 승압실 및 흡입실을 피스톤의 반 흡입실측의 가스실에 연통하는 가스통로 수단을 설치하고, 상기 가스실의 용적을 승압실 및 흡입실 보다 크게하고, 상기 흡입실 내에서의 피스톤 이동량을 상기 가동 접촉자가 고정접촉자에 투입되었을 때의 양접촉자의 접촉량보다 크게한 것이다.
Patent KR-100195813-B1 (KR)
Inventor: BOURGIE PAUL
IPC: H01R13/631
Filed: 1990-11-27
Granted: 1999-06-15
Abstract: 본 자동 상호 접속 조립체는 한 측면에 제1커넥터, 대항측면에 신축가능 조립체(240, 250, 260)를 포함하는데, 상기 신축가능 조립체는 그것의 자유단부에 제2커넥터를 포함하고, 제어 작동기에 의해 구동되고, 그것이 신장되면 상기 제2커넥터가 상기 제1커넥터에 접근하여 그것을 제1커넥터에 플러깅하고, 상기 자동 상호 접속 조립체는 플러깅의 시작에 앞서 두 커넥터가 서로 접근할때, 상기 두 커넥터를 축방향 및 축직각 방향으로 졍렬시키고 상호간의 각도를 설정하기 위한 정렬 수단(241, 242, 243)을 포함하고, 커넥터의 총 플러깅을 탐지하여 작동기의 신장을 중단 시키는 작동기의 운동 제한 수단을 포함한다. 
     상기 신축 가능 조립체는, 고정 외부튜브(230)내에 놓이고, 제1커넥터에 연결 고정된 제1지지표면(122)과 상호 협력하도록 고안된 상기 지지표면과 같은 형태의 제2지지표면을 구비하는 매개 튜브(240)를 포함하고, 상기 매개 튜브내에 놓이고, 제2커넥터를 지지하고, 작동기의 로드에 접속된 내부 튜브를 포함하고, 상기 내부 튜브를 상기 매개 튜브에 연접하기 위한 탄성수단을 포함한다. 상기 탄성수단은 작동기가 접근하는 동안에, 작동기에 의해 상기 내부 튜브에 전달된 전위를 상기 매개 튜브에 전달 가능하게 하고, 상기 지지표면이 접촉되면 차츰 압축되어, 상기 작동기의 신장은 단지 내부 튜브만의 변위를 일으키게 한다.
Patent KR-930009384-B1 (KR)
Inventor: FUJIKI TSUTOMU
IPC: B60H1/00
Filed: 1990-12-18
Granted: 1993-10-02
Abstract: 내용 없음.
Patent KR-100198605-B1 (KR)
Inventor: GU JA-KYUNG
IPC: H01L21/00
Filed: 1991-01-16
Granted: 1999-06-15
Abstract: 본 발명은 낸드형 셀구조의 메모리 셀 제조에 있어서, 코드층 형성이후의 공정시간을 단출시 킬 수 있는 반도체 기억소자 제조방법을 제공하기 위한 것으로 이를 위해 기판 위에 게이트 산화막을 형성하고 문턱전압 조절을 위한 이온주입 공정을 실시하는 단계, 포토/이온주입공정을 실시하여 셀이 형성될 영역을 디플리션 영역으로 만드는 단계 ; 폴리실리콘막을 증착하고 포토/에칭공정을 실시하여 게이트 폴리실리콘막을 형성한 다음 포토/이온주입공정을 실시하여 소오스/드레인영역을 형성하는 단계, 코드 포토/이온주입공정을 실시하여 선택한 특정부분을 인헨스먼트 영역으로 형성하는 단계가 차례로 포함된다.
Patent KR-940000361-B1 (KR)
Title: Contrast revision apparatus in camcorder
Inventor: BAN YONG-KYUN
IPC: H04N5/235
Filed: 1991-01-29
Granted: 1994-01-17
Abstract: The contrast corrector includes a controller for controlling the operation of a video camera and generating a gamma correction control signal, a driving signal generator for outputting a CCD driving control signal, a chrominance separation control signal, a white balance control signal, and an encoding control signal, a CCD for photoelectrically converting the image and outputting a video signal, an amplifier for amplifying the video signal, a chrominance separator for separating chrominance signals and luminance signal, a gamma corrector for gamma-correcting the luminance signal and chrominance signals, a diaphragm driving portion for driving the diaphragm by receiving the gamma-corrected luminance signal,an encoder for encoding the white-balance- corrected luminance signal and chrominance signals, and a contrast discriminator for discriminating the contrast of the gamma- corrected luminance signal.
Patent KR-930011959-B1 (KR)
Title: Rolling device for screw bolt
Inventor: CHOE KYONG-WON
IPC: B21H3/00
Filed: 1991-04-02
Granted: 1993-12-23
Abstract: The apparatus forms the  screw  bolt  used  for  adjusting  a support height of mould panel when a building  or  a  bridge  gets contructed. The screw bolt forming apparatus comprises dies  (22), fixed in a universal joint (23), having a  screwed  part  (21);  a pair of auxillary dies (27,28) rotatably  formed  under  the  dies (22); a rotary rod (33) positioned in the center of the  auxillary dies (27,28); a  chute  (35),  formed  under  the  auxillary  dies (27,28), having a  sensor;  a  hydraulic-pneumatic  cylinder  (37) driving a slider (38); an input member (42) driven  up/down  by  a cylinder (41) according to a side wall (40') of an auxiliary guide formed on one side of a guide (36).
Patent KR-940003564-B1 (KR)
Title: Making method for test pattern
Inventor: HAN YONG-KYU
IPC: H01L21/66
Filed: 1991-04-11
Granted: 1994-04-23
Abstract: The manufacturing method comprises the steps of, forming oxide layer on silicone substrate, carrying out photo/etch process on the said oxide layer, ion injecting into a portion where the said oxide layer is removed and diffusing the said ion in the said silicone substrate to form ion diffusion layer, depositing doped polysilicone layer to keep the said doped polysilicone layer only on the portion removed of the oxide layer, thereby enabling measuring of the length of effective channel.
Patent KR-940008113-B1 (KR)
Title: Automatic answering system
Inventor: JANG JU-YONG
IPC: H04M1/64
Filed: 1991-04-15
Granted: 1994-09-02
Abstract: The telephone automatic answering service and service completion rate recording system includes a plurality of detectors for detecting a telephone call, a detecting controller for controlling the plurality of detectors, a liquid crystal display (LCD) panel for displaying civil petitions, a key pad, a central processing unit for controlling each part, a printer, a serial input/output device, operator front boards, and a voice storage device for automatically sending a voice answering message when an operator does not respond to a call, thereby efficiently processing the civil petitions.