baber/WOPTO huggingface dataset:
Patent KR-870000583-B1 (KR)
Title: Process for the recovery of butene-1
Inventor: COMIOTTO RENZO
IPC: C07C7/163
Filed: 1984-07-23
Granted: 1987-03-23
Abstract: Butene-1 for polymn. was recovered from no-isobutene C4 fraction. Distn. performed in 1st distn. tower of 5-20 absolute pressure, fraction contg. residual oil were distilled in 2nd distn. tower of 3- 10 absolute pressure. Tower fractions are injected into selective hydrogenation equipment of butadien and acetylene derivs. for reducing these compds. to 30-200 ppm. Debouches from the selective hydrogenation equipment are finally poured into distn. tower of 3-10 absolute pressure for recovery of Butene-1.
Patent KR-860001817-B1 (KR)
Title: Process for the preparation of ethyleneimine derivatives
Inventor: LEE NAM-BOCK
IPC: C07D203/08
Filed: 1984-11-14
Granted: 1986-10-24
Abstract: Ethyleneimine derivs. (I) [1-methylamino-1-ethyleneimino- 2nitroethene! were prepd. from an ethyleneimine(II) by reacting with 1-methylthio-1-methylamino-2-nitroethene(III) in the presence of 5-10 % of ammonium chloride soln. This process has a high purity and good yield (90%).
Patent KR-890000488-B1 (KR)
Title: Process for preparing thiazolylacetic acid derivatives
Inventor: OINE TOYONARI
IPC: C07D207/273
Filed: 1984-12-17
Granted: 1989-03-18
Abstract: Thiazolyl acetic acid derivs. of formula (I) or their salts are prepd. by reacting a compd. of formula (II) with a compd. of formula (III).  In the formulas, R1NH- and R1'NH- are each amino or protected amino; -COOR3 and -COOR3' are each carboxy or protected carboxy; X1 is halogen; X2 is reactive residue; R2 is H or lower alkyl; n is 2 or 3.  (I) or their salts are useful as an intermediate in the synthesis of cephalosporin compound.
Patent KR-890005303-B1 (KR)
Inventor: NICHOLES STEVE
IPC: C07D487/04
Filed: 1984-12-18
Granted: 1989-12-20
Abstract: 내용 없음.
Patent KR-900002421-B1 (KR)
Title: Drive controller for inverter
Inventor: KOYAMA KAZUMI
IPC: H02P27/06
Filed: 1985-01-10
Granted: 1990-04-14
Abstract: The PWM signal comprises a data region and a halt region in each carrier period.  The carrier period and data unit time are controlled by independent digital values produced by microcomputers independent of each other or by use of different timers. The data unit time is modified by an output of a power source voltage fluctuation detector, thus providing a constant voltagefrequency characteristic.
Patent KR-880000514-B1 (KR)
Title: Liquid mixing method and apparatus thereof
Inventor: YAMAGUTJI SHOGO
IPC: B01F15/04
Filed: 1985-01-30
Granted: 1988-04-09
Abstract: A first and a second liquid are mixed by a constant volume pump connected to conduits which supply the two liquids.  Each liquid is stored in a tank at a predetermined pressure and the delivery rate of the second liquid measured and adjusted to a predetermined valve. Pref. one of the liquids is water and the tank is maintained at a negative pressure to evacuate oxygen.
Patent KR-890002498-B1 (KR)
Title: Ceramic tip for rocker arm
Inventor: TASHIRO KEISUKE
IPC: F02F7/00
Filed: 1985-04-15
Granted: 1989-07-10
Abstract: The ceramic tip (17) cast in a valve rocker arm (1) comprises a slipper block (14) having a part-cylidrical slipper face (13) engaged by an arm arranged for rotation for causing opening and closing movements of an inlet valve or an outlet valve of an engine.  A cast body block (12) protrudes from the reverse side of the slipper face of the slipper block, cast integrally with the valve rocker arm body.  A round slope (15) is formed at the conjoined boundary area between the slipper block and the cast body block to alleviate stress concentration on the conjoined boundary area.  It provides an improved mechanical reliability.
Patent KR-870001693-B1 (KR)
Title: Process for preparing 1,4-dihydro-4-oxo-naphthyridine derivatives
Inventor: NARITA HIROKAZU
IPC: A61K31/435
Filed: 1985-04-25
Granted: 1987-09-24
Abstract: The title compds. (I; R1=H; R2=F, C1-4 alkyl-substd. ph; R3=1 - pyrrolidinyl or 1-piperazinyl; R1a=carboxyl-protecting gp.; R2a= substd. ph; R3a=C1-4 alkyl or C1-4 alkylamino gp.-substd. 1pyrrolidinyl or 1-piperazinyl) are prepd. by decycling (II), followed by eliminating its protecting gp..  Antibacterials with good activity against-positive and gram-negative organisms, particularly antibiotic-resistant strains.  Results in vitro tests are given in the specification.
Patent KR-890000800-B1 (KR)
Title: Process for preparing a - 21978c derivative
Inventor: HUBER FLOYD M
IPC: C12P21/04
Filed: 1985-10-08
Granted: 1989-04-07
Abstract: The A-21978C cyclic peptide antibiotics (I)[R=C2-14 alkanoyl) was prepd. by addn. of a C2-14 alkanoic acid or its ester or salt to a fermn. with streptomyces reseosporus.  Thus, a preculture of S. roseosporus NRRL 15988 was inoculated into a prodn. medium contg. soybean flour, glucose, potato dextrin and molasses and cultured at 30≰C with stirring and aeration, maintaining the pH above 6.5.  At 28hr caprylic acid and Me oleate were added in 50% soln. at a rate of 0.13ml/l/h until the end of fermn. at 144hr. The yield of A-21978C antibiotic complex was 1.255g/l and of factor A-21978C8 was 113mg/l, compared to 282 and 0 mg/l, resp., when no acid was added.
Patent KR-870000440-B1 (KR)
Title: Process for preparing tetrahydro pyrido indole derivatives
Inventor: WELCH WILLARD M
IPC: C07D471/04
Filed: 1986-06-07
Granted: 1987-03-10
Abstract: Tetrahydro pyrido indole derivs. of formula(I) and their pharmaceutically acceptable salts are produced from an acylation of (II). R5 is H; R6 is acetyl or ethoxycarbonyl; n is 4-6 integer. (I) are useful as nervine. Thus, the rxn. comprise e.g. (A) reacting 8- fluoro-5-(4-fluoro phenyl)-2,3,4,5-tetrahydro-1Hpyrido-, 3-b! indole with 1-(4-chloro-1-butyl)-2-piperidone, (B) chromatograph on silica gel by ethylacetate as developing, (C) drying and dissolving in acetone, (D) addn. of ethereal hydrogen chloride for eduction of title compds.
Patent KR-900004759-B1 (KR)
Title: Magnetic head moving device
Inventor: KASAHARA AKIHIRO
IPC: G11B5/48
Filed: 1986-09-03
Granted: 1990-07-05
Abstract: The head moving apparatus includes a carriage which has a magnetic head placed on it, for guiding the magnetic head back and forth in a predetermined direction. A motor drives the carriage, and a flexible band is wound around the rotating shaft of the motor, with its one end fixed to the carriage and the other end is supported by the carriage. A tensioner is fixed to the carriage, for giving a tension to the flexible band, with one end of the tension being fixed to the carriage, and the other end of it being engaged with the end of the flexible band. The tensioner gives a predetermined tension to the flexible band by applying a force in a direction perpendicular to the longitudinal direction of the flexible band.
Patent KR-890003723-B1 (KR)
Title: Recovery time control circuits
Inventor: RYU GWAN-SOB
IPC: G06F13/38
Filed: 1986-10-10
Granted: 1989-09-30
Abstract: The circuit for effective data communication eliminates the recovery time caused by conversion of read/write mode between serial communication controllers for the multiusers.  An output tap (INTACK) for transmitting the interrupt recognising signal and output taps (CE1, CE2) for transmistting the chip enable signal are connected to input taps of serial controllers (21,22) for interrupt recognising signals (INTACK1, INTACK2) (21,22) for chip enable signal (CE1, CE2).
Patent KR-910000434-B1 (KR)
Inventor: NAKABANI GAZYEUSHI
IPC: C23C20/04
Filed: 1986-10-25
Granted: 1991-01-25
Abstract: 내용 없음.
Patent KR-950006137-B1 (KR)
Inventor: WINGROVE DONALD E
IPC: C07F17/02
Filed: 1986-12-10
Granted: 1995-06-09
Abstract: 내용 없음.
Patent KR-900007483-B1 (KR)
Title: Magnetic card
Inventor: YANO NORIO
IPC: G11B5/70
Filed: 1987-02-11
Granted: 1990-10-10
Abstract: Magnetic card, for storing selected information, comprises (a) a substrate; (b) stacked magnetic recording layers provided on (a), each of layers (b) having a coercive force that enables magnetic recording, and in which a portion of the selected information is stored in accordance with a predetermined relationship, such that the respective portions stored in layers (b) are combinable to reproduce the selected information; and (c) a magnetic shielding layer provided at least on the uppermost layer (b), layer (c) having such a small coercive force as is unsuitable for magnetic recording. The card cannot be fraudulently used by an unauthorised person, and the information on the card is difficult to forge or alter.
Patent KR-940009840-B1 (KR)
Inventor: MASAMI SEIDO
IPC: H01R13/6599
Filed: 1987-02-18
Granted: 1994-10-17
Abstract: 내용 없음.
Patent KR-890003214-B1 (KR)
Title: Lead frame & process adapted to the manufacture of lead frame
Inventor: KIM TAE-OH
IPC: H01L23/48
Filed: 1987-02-19
Granted: 1989-08-26
Abstract: Method for manufacturing lead frame is characterized by forming Sn- plating layer having the composition of 90-99 wt.% Sn and 1-10 wt.% Pb, and the thickness of 3.0  μm-5.1 μ m on the lead part of lead frame.  The process following after Sn-plating process comprises recovery water cleaning, pure water cleaning, post cleaning, pure water cleaning and drying.  The method shortens the conventional pretreating process and soldering or tin plating process.
Patent KR-960013427-B1 (KR)
Inventor: MACHIDA YUKIHIKO
IPC: G11B15/473
Filed: 1987-06-09
Granted: 1996-10-05
Abstract: 내용 없음.
Patent KR-930001509-B1 (KR)
Inventor: BELL NORMAN D
IPC: B29C59/00
Filed: 1987-08-07
Granted: 1993-03-02
Abstract: 내용 없음.
Patent KR-910000623-B1 (KR)
Inventor: SUEHIRO YOSHIUKI
IPC: H01L27/04
Filed: 1987-08-12
Granted: 1991-01-28
Abstract: 내용 없음.
Patent KR-900004392-B1 (KR)
Title: Making method for barbed wire
Inventor: CHUNG HWA-YOUNG
IPC: B21F25/00
Filed: 1987-11-09
Granted: 1990-06-25
Abstract: The method produces lines of thorned tape a cut from wide steel plate without material loss in a short time. The making apparatus includes winding steel plate (1), feed rollers (7), (7'), hole-drilling machine (3), cutting machine (5) which marks hole (3') and cutting line (5) to make cutting profile, and winding roller (4) to wind thormed tapes (A1)(A2).
Patent KR-900007392-B1 (KR)
Title: Process for the preparation of 2-(4-bromophnyl)2-methyl propyl chloride
Inventor: CHONG BONG-YEOL
IPC: C07C25/02
Filed: 1987-12-08
Granted: 1990-10-08
Abstract: 2-(4-Bromo phenyl)-2-methylpropyl chloride of formula (I) is prepd. by reacting 2-phenyl-2-methyl chloride of formula (II) with bromine in presence of trivalent amine salt (e.g. triethyl amine or pyridine) as a catalyst at -10-30 deg.C. In the process, the molar ratios are pref. (II): trivalent amine salt= 1:0.005-0.02 and (II): bromine= 1:0.9-0.1. (I) is useful as an intermediate for preparing inseticide.
Patent KR-970002141-B1 (KR)
Inventor: NAKUMO HUMIO
IPC: H04N9/093
Filed: 1988-02-10
Granted: 1997-02-24
Abstract: 내용없음.
Patent KR-960003786-B1 (KR)
Inventor: GRISWOLD STANLEY ROY JR
IPC: H04L27/20
Filed: 1988-04-02
Granted: 1996-03-22
Abstract: 내용 없음.
Patent KR-900007939-B1 (KR)
Title: Novel microorganism for producing of glutamic acid
Inventor: HYUN HYUNG-HWAN
IPC: C12N1/20
Filed: 1988-12-12
Granted: 1990-10-23
Abstract: Glutamic acid producing Brevibacterium flavum KFCC 10652 (I), which is unable to resist 0.03 /ml or more concn. of penicillin and can not use glutamic acid as carbon-source or nitrogen-source, is prepd. by treating the original strain Brevibacterium flavum ATCC 14067 with UV or NTG. Prodn. of glutamic acid comprises culturing (I) in a medium contg. waste syrup, glucose, starch hydrolyte, etc., and obtaining glutamic acid from the culture broth.
Patent KR-970008597-B1 (KR)
Inventor: INOUE TOSHIO
IPC: C08L23/02
Filed: 1988-12-27
Granted: 1997-05-27
Abstract: 없음
Patent KR-960000553-B1 (KR)
Title: Transdermal absorption dosage unit for estradiol and other estrogenic steroids and process for adminstration
Inventor: CHIEN YIE W
IPC: A61K31/565
Filed: 1987-05-29
Granted: 1996-01-09
Abstract: This invention relates to a novel transdermal absorption dosage unit comprising a backing layer, an adjoining layer of solid polymer matrix in which estradiol or another steroidal pharmaceutical having estrogenic activity is microdispersed; and a biologically acceptable adhesive means by which the dosage unit adheres to the skin of the subject being administered said estradiol or another said steroidal pharmaceutical and adapted to permit transdermal absorption of said estradiol or another said steroidal pharmaceutical. Additionally, the invention relates to improved estradiol or other estrogenic steroid maintenance therapy.
Patent KR-970008642-B1 (KR)
Inventor: OISHI HIROAKI
IPC: G11B15/12
Filed: 1989-01-30
Granted: 1997-05-27
Abstract: 없음.
Patent KR-0127311-B1 (KR)
Inventor: HAYASHI MASAYASU
IPC: G09G1/28
Filed: 1989-03-22
Granted: 1997-12-29
Abstract: 본 발명은 고휘도발광의 형광표시장치에 관한 것이며, 고압이 인가되는 복수의 형광체세그먼트와, 캐소드와, 상기 각 세그먼트에 대응하여 배설된 복수의 제어전극과, 상기 캐소드와 상기 제어전극과의 사이에 상기 세그먼트의 복수 개에 대응하여 배설된 공통의 전자빔취출수단을 가지며, 상기 각 제어전극의 전압을 제어하여 상기 세그먼트를 선택적으로 발광표시하도록 하여 이루어짐으로써,전체의 구조를 간단화할 수 있고, 따라서 이 종류의 형광표시셀의 제조를 용이하게 하고, 품질, 신뢰성을 향상시킬 수 있고, 또 코스트저감을 도모할 수 있다.
Patent KR-910004217-B1 (KR)
Inventor: SUZUKI HIROGO
IPC: G01N21/43
Filed: 1989-03-29
Granted: 1991-06-24
Abstract: 내용 없음.
Patent KR-0141608-B1 (KR)
Title: Method and kit for early detection of lung cancer
Inventor: MULSHINE JAMES L
IPC: G01N33/577
Filed: 1989-04-03
Granted: 1998-06-15
Abstract: A method for early detection of lung cancer comprising: obtaining samples from the body, especially the respiratory tract material including sputum or bronchial fluid or any other pulmonary tissue or regional lymphnodes or thoracic cells and assaying said samples with monoclonal antibodies for the presence of antigens whose enhanced presence correlates with the development of lung cancer. The method of the present invention permits identification of lung cancer up to two years prior to the development of clinical lung caner, and thus enables early treatment of the lung cancer.
Patent KR-0125574-B1 (KR)
Title: 동력슬라이딩 트럭 캡 윈도우
IPC: E05F11/53
Filed: 1989-04-07
Granted: 1998-07-01
Abstract: 내용 없음
Patent KR-970001022-B1 (KR)
Title: Apparatus and method for producing a thermos cover of pipe
Inventor: LEE BONG-DOO
IPC: F16L59/05
Filed: 1989-06-22
Granted: 1997-01-25
Abstract: A cover for warming pipe wherein plural V grooves(16) are formed on the surface of an inorganic fiber slab plate(1') and on an adhesive paper(6) is bonded to the opposite surface of the plate(1'): a manufacturing method thereof comprising the step cutting the plate(1') as feeding it ; the step spraying adhesive of the opposite surface to bond the adhesive paper; the step fixing the plate to form plural V grooves; and the step repeating the steps : and a manufacturing apparatus thereof having a cutting edge(3) in upstream of a conveyer belt(2); an adhesive spraying nozzle(4), a winding roll(5), a press roll(7) and a guide roll(8) in downstream of the cutting edge(3); a pressing means having a press rollers(9,10) and a press plate(11) contacted to the rear end of the conveyer belt(2); supporting plates(13,13'); and a rotation edge(14) swiveled between the supporting plates(13,13'); are disclosed.
Patent KR-940008973-B1 (KR)
Inventor: TANAKA SATOSHI
IPC: B65H67/052
Filed: 1989-07-05
Granted: 1994-09-28
Abstract: 내용 없음.
Patent KR-910009715-B1 (KR)
Title: Process for making frizzled chicken packing with tray
Inventor: CHOI SANG-SUN
IPC: A23L13/50
Filed: 1989-08-22
Granted: 1991-11-29
Abstract: A process for preparing frizzled  chicken  packed  with  tray comprises: (a) cutting chicken; (b) seasoning the cut chicken with red pepper powder and pepper powder;  (c)  roasting  the  seasoned chicken with salt and butter in the pan; (d) roasting an onion and wheat flour with butter, and mixing with meat stock and kechap  to obtain the sauce; (e) adding boiled potato, roasted mushroom, etc. into the obtd. sauce; (f) filling the  obtd.  chicken,  the  above sauce, and peas into the container (PP-EVOH-CPP). e.g.  tray;  (g) replacing the O2 gas of inner space of container with  N2  gas  or CO2  gas;  (h)  heat-sealing  the  container  and  sterilizing  it continuously under 1.1 kg/cm2 for 5 min, 1.3 kg/cm2  for  5  min., and 1.5 kg/cm2 for 20-25 min; (i) cooling it to obtain  the  final product.
Patent KR-920003962-B1 (KR)
Title: Heating device for shadow mask of a plane crt
Inventor: CHAE SANG-SIN
IPC: H01J9/14
Filed: 1989-12-12
Granted: 1992-05-18
Abstract: The shadow mask heating apparatus is to heat the shadow  mask uniformly with  the  least  deformation  due  to  the  temperature distension. The heating apparatus comprises an upper heating plate (22) and a lower  heating  plate  (23).  Heating  pins  (24)  with different lengths are deposited on the heating plate radially  and the shorter heating pins are deposited between  the  long  heating pins far from the center of the heating plate rather than the long heating pins. Adjusting pins (25) are deposited through  the  edge of the lower plate at regular intervals.
Patent KR-950013074-B1 (KR)
Inventor: MAKAY DWIGHT LAMAR
IPC: C07B35/04
Filed: 1989-12-27
Granted: 1995-10-24
Abstract: 내용 없음.
Patent KR-970009468-B1 (KR)
Inventor: KAITE OSAMU
IPC: H04N5/95
Filed: 1990-01-19
Granted: 1997-06-13
Abstract: 내용 없음.
Patent KR-100189128-B1 (KR)
Inventor: BRIENZA ANTHONY R
IPC: F16J15/32
Filed: 1990-01-30
Granted: 1999-06-01
Abstract: 내용없음.
Patent KR-930005000-B1 (KR)
Title: Process for producing aromatic amide derivatives
Inventor: IM YONG
IPC: C07C233/09
Filed: 1990-05-04
Granted: 1993-06-11
Abstract: A method for preparing aromatic amide derivs. of formula  (I) comprises reacting a cinnamic acid deriv. of formula (II) with  an aminobenzoic acid deriv. of formula (III) in  the  presence  of  a phosphor cpd. of formula Y3PO4 at the melting point temp.  of  (I) ± 20 deg.C for 2-5 hrs. In the formulas, R1 and R2 = H of C1-4 akyl; R3 = H or C1-3 alkyl; X = OH or C1-4 alkoxy; Y = H, alkyl or aryl; n = 1-3.
Patent KR-0155549-B1 (KR)
Title: A foaming system for rigid urethane and isocyananurate foams
Inventor: SMITG GUIDO FREDDY
IPC: C08G101/00
Filed: 1990-05-09
Granted: 1998-12-01
Abstract: This invention relates to rigid closed-celled polyisocyanate-based foams exhibiting improved dimensional stability and a process for their preparation. In particular, it relates to resulting foams containing within their cells, a gas mixture comprising from 15 to 70 mole percent carbon dioxide and from 30 to 85 mole percent of a halocarbon mixture. The halocarbon mixture itself, comprises (a) from 40 to 95 mole percent based on moles of (a) and (b) present of a halocarbon compound having a boiling point of at least 283 DEG K, and (b) from 50 to 60 mole percent of a halocarbon compound having a boiling point equal to or less than 266 DEG K. Preferred halocarbons for component (a) and (b) are ethane halocarbons especially fluorodichloroethane or dichlorotrifluoroethane and chlorodifluoroethane, respectively.
Patent KR-940005203-B1 (KR)
Inventor: TASHIRO TETSU
IPC: G01R31/317
Filed: 1990-06-21
Granted: 1994-06-13
Abstract: 내용 없음.
Patent KR-0155551-B1 (KR)
Inventor: TSUKUSHI MASANORI
IPC: H01H33/91
Filed: 1990-06-26
Granted: 1998-11-16
Abstract: 본 발명은 동작에 필요한 힘을 감소시키고 노즐을 전기적으로 절연시키는 목부를 통하는 아크 소멸성 가스 유동과 함께 아크 소멸에 사용된 가스유동저항을 감소시킬 수 있는 가스차단기를 제공한다. 
     제1접촉자의 접촉부의 제1영역에 축방향으로 개방된 제1개방단부를 갖는 함몰 배출 통로를 갖는 제1접촉자와 제2접촉자로 이루어진 한쌍의 접촉자, 아크 소멸 가스의 흐름을 안내하도록 제1접촉자에 대하여 정지되고 접촉부를 둘러싸는 절연노즐, 절연노즐의 안내하에 아크 소멸 가스를 공급하도록 제2접촉자에 대하여 정지된 버퍼 피스톤과 협력하여 푸퍼챔버를 형성하고 아크 소멸가스를 압축하는 푸퍼챔버수단을 포함하여, 아크 소멸가스가 제1접촉자의 함몰 배출 통로를 통하여 배출되고, 함몰 배출 통로의 일부가 제1개방단부에 이웃하여 위치하고 푸퍼챔버와 제1접촉자사이에 축방향으로 중간인 제2영역에 위치하며, 함몰 배출 통로는 접촉부의 제1접촉자로부터 반경방향으로 외부로 연장되고, 제2접촉자에 대하여 블록수단이 분리동작의 초기단계동안 함몰 배출 통로의 제2단부를 폐쇄하고 분리동작의 마무리 단계동안에 함몰 배출 통로의 제2단부를 개방한다.
Patent KR-930008947-B1 (KR)
Title: Frame detected circuit of digital transmitted apparatus
Inventor: LEE KYU-SOK
IPC: H03M13/00
Filed: 1990-08-20
Granted: 1993-09-17
Abstract: The circuit for detecting the simplified frame in  a  digital transmission equipment comprises a serial/parallel converter  (10) converting the data synchronized with the 1st clock to n-bit data, a logic converter (20) for confirming the exact  frame  etection, an error counter (50) for generating the frame loss alarm  signal, the 1st  devider  for  controlling  the  output   data   of   the serial/ parallel converter (10),  and  the  2nd  devider  (60)  for m- dieviding thd 3rd clock (CLK3).
Patent KR-940000907-B1 (KR)
Title: Exposing method of semiconductor device fabricating process
Inventor: SHIN PIL-SHIK
IPC: H01L21/30
Filed: 1990-10-13
Granted: 1994-02-04
Abstract: The method for aligning and exposing the semiconductor wafer regardless of the die size comprises steps: (a) patterning the alignment key on a first region (B+C) by exposing and developing with a first reticle, which region is a part of the whole field (A+B+C+D); (b) changing to a second reticle for patterning a second region (A+B), and shifting a stage (16); (c) exposing after aligning the alignment key patterned on a part (B) of the first region and the second reticle; (d) changing to a third reticle for patterning a third region (C+D), and shifting the stage; and (e) exposing after aligning the alignment key patterned on a part (C) of the first region and the third reticle.
Patent KR-930008845-B1 (KR)
Title: Device for seprating method of semiconductor apparatus
Inventor: LEE CHANG-JAE
IPC: H01L21/00
Filed: 1990-10-15
Granted: 1993-09-16
Abstract: A method for isolating a semiconductor device  comprises  (1) forming an activated region and a field oxide film by conventional LOCOS process, (2) forming a pad oxide film and a silicon  nitride film in turn, after eliminating the field oxide film, and  forming an oxide film by low pressure  chemical  deposition,  (3)  etching back the oxide film and silicon nitride film to expose the  active region to be oxidized, (4) implanting channel  stop  ions  on  the activated region and eliminating the oxide  film,  (5)  forming  a field oxide film and etching back to  smooth  its  upper  surface, then (6) eliminating the silicon nitride film and pad  oxide  film in turn.
Patent KR-930007132-B1 (KR)
Title: Apparatus for multing a data
Inventor: LEE YU-KYONG
IPC: H04J1/00
Filed: 1990-12-15
Granted: 1993-07-30
Abstract: The  data  multiplexer  adopts  multiple  envelope  structure recommended by CCITT X.50 to interface channel with ease. The data multiplexer is designed using programmable gate array  to  realize one  chip  multiplexer.   The   data   multiplexer   comprises   a transmission timing signal generator (104) for generating  channel phase and channel selection signal (CHP0,CHP4,CHS0,CHS1) to  match frame bit pattern and transmission channel position,  a  scrambler (102) for generating frame  pattern  by  scrambling  system  clock signal, an alarm bit inserting unit (103) for inserting alarm  bit into frame pattern signal, and a transmission frame bit  inserting unit (101) for outputting multiplexed transmission data  which  is synchronized to system clock.
Patent KR-0165893-B1 (KR)
Inventor: NAKAJIMA ATSUSHI
IPC: G01D5/22
Filed: 1990-12-28
Granted: 1999-03-30
Abstract: 자성을 지닌 대상물체와 닿지않고 상기 물체의 변위를 측정할 수 있는 인덕턴스형 변위센서로 한쌍의 직렬연결된 코일은 상기 물체에 근접하게 놓여서, 코일의 인덕턴스가 미리 설정된 위치로부터 상기 물체의 변위에 응답해서 변화하도록 한다. 인덕턴스, 감은횟수, 감는 방향과 각 코어의 단면은 코일중의 하나에 의해 생긴 자속이 다른 코일에 의해 생긴 자속의 방향과 반대가 되도록 하고 각각의 자속밀도는 서로 같게 하는 것이다.
Patent KR-940001395-B1 (KR)
Inventor: RIAO KUANWAI
IPC: H01L21/3205
Filed: 1990-03-12
Granted: 1994-02-21
Abstract: 내용 없음.
Patent KR-940000694-B1 (KR)
Title: Laser diode and manufacturing method thereof
Inventor: MUN SUNG-HWAN
Filed: 1991-03-23
Granted: 1994-01-27
Abstract: The device comprises a p-GaAs substrate, an n-type current confining layer including the first channel of the shape V, a p-type cladding layer, a p- or n-type active layer, a n-type cladding layer, a p-type current confining layer including the second layer, an n-type cap layer, and n- and p-type electrodes. The device is characterized by either forming the second channel in the vertical alignment with the first channel or forming the second out of the vertical alignment with the first channel.