baber/WOPTO huggingface dataset:
Patent KR-850001666-B1 (KR)
Title: Process for preparing macrolide antibiotics
Inventor: BALTZ RICHARD HENRY
IPC: C12N1/20
Filed: 1981-11-10
Granted: 1985-11-13
Abstract: Compds. of 20-dihydro-20-deoxy-23-demycinosyl tylosin(I) and 20- dihydro-20-deoxy-5-0-mycaminosyl tylonide(II) was obtained by aerobic fermentation of Streptomyces fradiae ATCC31733 in a medium contg. C, N, and inorganic salt sources. (I) and (II) have structural formula (III) with R as a group of formula (IIIa) or H, respectively. On acid hydrolysis, (I) was converted to (II). (I) and (II), their acyl esters and their acid salts are useful as antibacterials, especially effective against gram positive strains and against Mycoplasma species. They are also used as surface disinfectants.
Patent KR-830000338-B1 (KR)
Title: Process for preparing naphthyridine derivatives
Inventor: MASUMOTO JUNICHI
IPC: C07D471/04
Filed: 1982-12-14
Granted: 1983-03-04
Abstract: The antibiotic 1,8-naphthyrine derivs. (I; R1 =H, Et; R2 = lower alkoxy carbonyl, cyano; R3 = H, protecting group) were prepd. by cyclizing of II. Thus, diethyl N-[2-(4-ethoxy carbonyl-1-piperazinyl)-3- fluoro-6- piridyl  amino ethylene malonate were heated with 100 ml Dowtherm A(an eutectic mixt. of diphenylether and diphenyl) and diluted with 100 ml n-hexane to give 6.5 g I(R1 = H; R2 = COOH; R3 = 4-ethoxy).
Patent KR-830000836-B1 (KR)
Title: Dye composition
Inventor: HASIMOTO KIYOYATSU
IPC: C09B29/08
Filed: 1983-02-28
Granted: 1983-04-20
Abstract: 2,4,6-R(O2N)(NC)C6H2NH2(R=Cl, CN) were diazotized and coupled with 3-R1CONHC6H4NR2R3(R1=Me, Et; R2, R3=C5-8 alkyl) to give general structure I ≮ R=Cl, R1=Me, R2=R3=(CH2)4Me≉. 2-95wt% I were mixed with 98-5 wt% anthraquinone dye II(X = Amino group, Y=hydroxyl group, or X=hydroxyl group, Y=Amino group, 0<=n<2) to give the dye stuffwhich have brilliant, reproducible blue shades on polyester fiber or yarn.
Patent KR-910001006-B1 (KR)
Inventor: DALUGE SUSAN M
IPC: C07D217/14
Filed: 1983-04-29
Granted: 1991-02-19
Abstract: 내용 없음.
Patent KR-910005193-B1 (KR)
Inventor: MORIYAMA MASAO
IPC: B29B7/48
Filed: 1983-12-29
Granted: 1991-07-23
Abstract: 내용 없음.
Patent KR-910005846-B1 (KR)
Inventor: MILLER PETER H
IPC: C07D499/04
Filed: 1984-01-20
Granted: 1991-08-05
Abstract: 내용 없음.
Patent KR-890004673-B1 (KR)
Inventor: YONEMARU TOYOMI
IPC: H05K9/00
Filed: 1984-01-28
Granted: 1989-11-24
Abstract: 내용 없음.
Patent KR-940009967-B1 (KR)
Inventor: MEIER GERHARD
IPC: H04N5/655
Filed: 1984-02-25
Granted: 1994-10-19
Abstract: 내용 없음.
Patent KR-890000487-B1 (KR)
Title: Bis(piperazinylor homopiperazinyl)alkane and process for the preparation thereof
Inventor: DEVILN JOHN P
IPC: C07D295/10
Filed: 1984-03-21
Granted: 1989-03-18
Abstract: Title compds. (I)[R1, R2, R3, R4, R5, R6=H,  alkyl, OH, alkoxy, alkanoyloxy, halogen, trihalomethyl, alkylamino, alkoxycarbonyl, NO, CN, alkanoyl; R7, R8=H, Me, OH, COOH, alkoxycarbonyl, hydroxymethyl, Ph, p-chlorophenyl; R9, R10=H, Me; j, k, m, n=0-3; R11, R12=Me; R13, R14, R15, R16=H, Me; X=(un)substd. alkylene! and their salts, useful as antiphlogistics and antiallegics, were prepd..  Thus, a mixt. of 1-(4-chlorobenzyl)piperazine and 1bromo-3-chloropropane in EtOH was refluxed for 17hr and the solvent removed.  The resulting oil was treated with 1M K2HPO4 and later Na-phosphate/tribasic) so that the pH became 9.0.  The mixt. was extd. with ether, evapd, acidified with 2M H3PO4 and filtered.
Patent KR-910005173-B1 (KR)
Inventor: FUKUDA YOSHIAKI
IPC: B29C48/33
Filed: 1984-03-29
Granted: 1991-07-23
Abstract: 내용 없음.
Patent KR-890002534-B1 (KR)
Title: Rotary operation type miniaturized electronic component
Inventor: MATSI HEROSHI
IPC: H01H19/58
Filed: 1984-04-02
Granted: 1989-07-13
Abstract: A boxlike casing made of insulating synthetic resin has an opening formed at an upper face and a metal plate insert moulded at a bottom face such that the metal plate functions as fixed contact.  The metal plate is formed with two extended portions projecting out of the casing.  One extended portion is bent so as to project out of said casing to define a connecting terminal, and the second portion is bent so as to secure the plate to the casing, thus defining a retaining leg.  A movable contact member is in sliding contact with the fixed contact, and a plate covering the opening of the casing has a through-hole formed within it.
Patent KR-880000694-B1 (KR)
Inventor: ALBRECHT ERNST
IPC: D05B69/24
Filed: 1984-06-02
Granted: 1988-04-23
Abstract: 내용 없음.
Patent KR-860002118-B1 (KR)
Title: Amperemeter for special high voltage
Inventor: YUN DU-UI
IPC: G01R19/15
Filed: 1984-08-07
Granted: 1986-11-26
Abstract: A current meter for ultra high voltage comprises a LCD(1) a connector(8a) for connecting a COS stick(7), a gripper(10, 10a), a microswitch(11) connected to the reed relay. When the gripper holds the conducting wire of ultra high voltage, the flowing current value of the wire is both displayed on the LCD and causes a buzzer to ring. The current value maintains on the LCD even disconnecting the gripper because the value is memorized so that the current value is read easily on the ground.
Patent KR-920006867-B1 (KR)
Title: Process for producing crystaline dextrose monohydrate
Inventor: GIBERT BODELE
IPC: C13K1/10
Filed: 1984-11-17
Granted: 1992-08-21
Abstract: A process for the production of crystalline dextrose monohydrate in which the mass M subjected to crystallization traverses from above downwards continuously and under malaxation, a vessel inside which it is subjected to a temperature gradient globally decreasing from above downwards. The crystalline mass is recovered continuously at the lower part of the vessel, means being provided to take up at the intermediate level a fraction of the mass and to recycle it to a level situated in the vicinity of the upper end of the vessel.
Patent KR-890001850-B1 (KR)
Title: Process for the preparation of benzidine compound
Inventor: O DONG-GEUN
IPC: C07C209/10
Filed: 1985-04-30
Granted: 1989-05-27
Abstract: To prepare benzidine compound from nitrogen compound, a mixture of 2,3-dichloro-1,4-naphtoquinone, NaOH, and surfactant was reacted in heating with nitrogen inert gas, and added with organic solvent, nitrobenzene compound, and water in presence of a noble metallic catalyst.  The following hydrazobenzene compound (I) was obtained by hydrogenation with heating.
Patent KR-940002978-B1 (KR)
Inventor: KEIL MICHAEL
IPC: C07C251/34
Filed: 1985-07-27
Granted: 1994-04-09
Abstract: 내용 없음.
Patent KR-880002225-B1 (KR)
Title: Method of setting with silver thread design on the surface of metal
Inventor: CHOE SUK-MAN
IPC: B44C1/00
Filed: 1985-09-17
Granted: 1988-10-20
Abstract: This invention is a process of inlaying silver threads on the surface of metal artefacts to produce a filigree pattern.  Fine channels are graved in a picture or pattern to have a section in the form of a trapezoid "  " and inlay silver threads are placed in the channel. With the silver thread in place, the open edges of the channels are dinged to securely hold the inlaid silver threads and sharp edges are rounded off by polishing.  The polished surface is immersed in a glaze liquid at the temperature 60-80 degree C to be gradually cooled with stepped cooling tanks. The method may be applied to bronze, stainless steel and other metal artefacts.
Patent KR-870002137-B1 (KR)
Title: Operating circuit of a discharge lamp
Inventor: YU TAE-HYON
IPC: H05B41/14
Filed: 1985-10-22
Granted: 1987-12-09
Abstract: In the invention employing OTL type magnetic feedback, a voltage doubler and a bridge rectifier conect via a coil with 1st switch sect. and a pulse generator, whose output connecting to the bias input of 2nd switch sect. and to a coil of a magnetic oscillation trans T1.  The 1st and 2nd switch sect.s connect in common to the trans. coil L4, its other end connecting to 1st switch's bias input. The input of an overvoltage detector connects to 2nd coil of a step- up trans., whose other end connects via 1st and 2nd overvoltage controls with base bias of 1st and 2nd switch sects.
Patent KR-900005731-B1 (KR)
Title: Eye and eye manufacture method for dolls
Inventor: SUZUKI SADAO
IPC: A63H3/00
Filed: 1985-12-23
Granted: 1990-08-09
Abstract: Eye for Japanese doll gives, depite of to simple structure, stable arrangement and high strength. Head (1) of the doll having eyes in hollow portion (1a) includes inner part of inside (3a) of eye forming concave portion (2) for receiving eye body (4), outer part (3b) of eye exposing pupil (5) and part of eye body at eye socket (6) formed in concave portion, eye body bonded to the inner part of eye using adhensive (A).
Patent KR-950004889-B1 (KR)
Inventor: JIIGUFURIITO SHIISURERU
IPC: C07C17/12
Filed: 1986-09-13
Granted: 1995-05-15
Abstract: 내용 없음.
Patent KR-900000490-B1 (KR)
Title: Remover for the bark of a tree
Inventor: CHONG JIN-YONG
IPC: B27L1/00
Filed: 1986-11-11
Granted: 1990-01-31
Abstract: The equipment for automatically peeling log bark comprises circular arc shape steel rods (5,5a,5b) supported by coil springs (6,6a,6b), supporting devices (4,4a,4b) adhering to center hole's (2,2a,2b) outward face of steel plate frames (3,3b) which are elected on an upper face of the main body (1), rollers (12,12a, 12b) on which a plurality of pins are protruded and which are supported by a support device (13) and connected to pistons (14,14a, 14b), and steel wire brush rollers (27,27a,27b) which are movably inserted into moving devices (24,24a,24b).
Patent KR-890003990-B1 (KR)
Title: Automatic control circuit responding to intensity of light
Inventor: YUN YEONG-JAE
IPC: H05B37/02
Filed: 1986-12-16
Granted: 1989-10-14
Abstract: The circuit for automatic adjustment of lighting eqipment according to external lighting conditions includes a method for rotating motor by operating a fourth relay (S4) operated by a first relay (S1) latched and controlled by a third relay, a method for quitting motor by switching unit (9) installed on a certain point of trnsformer winding, a method for dropping voltage by reverse rotating of the motor by operating a second (2) and a fifth relay (S5), a method for voltage of external light comparator (4) comprising comparator (4A) and a second light sensor (ES2), and a method for maintaining optimal lighting condition.
Patent KR-900003941-B1 (KR)
Inventor: MASUDA YOSHINORI
IPC: B01J2/00
Filed: 1986-02-28
Granted: 1990-06-05
Abstract: 내용 없음.
Patent KR-910001713-B1 (KR)
Title: Magnetic recording medium
Inventor: YANG CHANG-SUN
IPC: G11B5/62
Filed: 1987-03-16
Granted: 1991-03-19
Abstract: A magnetic recording medium  is  manufactured  by  forming  a magnetic layer on one side of a  non-magnetic  substrate  such  as polyester film, and forming a back coat layer on the other side of the substrate by ion-plating the other side  with  SiOx,  SiNx  or InOx  [x=0.6 .  The  magnetic  layer  is  composed  of   Co-contg. gamma-Fe2O3 powder, carbon black, Cr2O3, nitrocellulose,  toluene, stearic acid n-butyl, myristic acid, polyurethane resin, etc.  The magnetic recording medium gives a good drop-out reduction  running performance.
Patent KR-900007038-B1 (KR)
Title: Intergrated circuit of the double deck cassette
Inventor: CHUNG DUK-YOUNG
IPC: G11B15/02
Filed: 1987-04-16
Granted: 1990-09-27
Abstract: The IC integrated with the exclusive reproducing IC and recording/ reproducing IC into one and replacing the slide switch with electronic one includes an automatic level detector (M) providing the level control signal to a controller (N) when outputs of amplifiers (K,L) become higher than certain level, the automatic level controller (N) reducing the input magnitude applied to the amplifiers, and a muting circuit (P) mating the output according to the signal applied to terminals (23). The reproduction signals from A and B decks are switched at switches (B,C) and provided to amplifiers (E,F). A logic controller (G) provides logical output to the switches and bias circuit (H) of the amplifiers.
Patent KR-910004549-B1 (KR)
Title: Twist drill
Inventor: TIKAL FRANZ
IPC: B24B3/26
Filed: 1987-06-05
Granted: 1991-07-06
Abstract: A twist drill having a longitudinal axis and major flanks ground by helical face grinding by means of a grinding wheel having a grinding face perpendicular to its axis of rotation and a circumferential profile, each major flank terminating in a cutting edge and having a surface which defines a clearance angle relative to the cutting edge wherein: the drill has an outer diameter and a central solid core having a thickness equal to 25% to 40% of the outer diameter; and each major flank is ground by a grinding operation performed by rotating the grinding wheel while its grinding face forms the major flank, effecting angular movement of the drill about its longitudinal axis and relative to the axis of rotation of the grinding wheel, effecting relative radial movement between the grinding wheel and the drill in the direction perpendicular to the drill axis and away from the axis of rotation of the grinding wheel, and effecting axial movement of the drill along its longitudinal axis toward the grinding wheel in a progressively increasing manner, such that the clearance angle defined by the finished major flank surface increases progressively with increasing distance from the cutting edge.
Patent KR-910001689-B1 (KR)
Inventor: HIROTA HUMIO
IPC: C08K3/04
Filed: 1987-09-30
Granted: 1991-03-18
Abstract: 내용 없음.
Patent KR-900003330-B1 (KR)
Title: Polyamide conjugated fibert and that's process manufacture
Inventor: PARK HO-JIN
IPC: D01F6/60
Filed: 1987-11-14
Granted: 1990-05-14
Abstract: An wholy aromatic polyamide is prepd. by the steps. of: preparing an optical isotropic prepolymer and an optical anisotropic prepolymer of different polymer ratio w.r.t. solvent, of 1.0-4.0 inherent viscosity by polymerizing aromatic diamine and aromatic diacid chloride in the mixt. of amide based solvent and inorg. salts as inssolving agcnt; extruding-complex spinning through the same spinning nozzle with molecular polymn. solvent the two-prepolymer in order to conjugate continuously the filaments of two-prepolymer in direction of length.
Patent KR-930003027-B1 (KR)
Inventor: INOUCHI KATSUYOSHI
IPC: A61H33/06
Filed: 1986-10-09
Granted: 1993-04-16
Abstract: 내용 없음.
Patent KR-910001616-B1 (KR)
Inventor: NISHIMURA TSUTOMU
IPC: C02F1/52
Filed: 1988-01-09
Granted: 1991-03-16
Abstract: 내용 없음.
Patent KR-930003718-B1 (KR)
Inventor: MAGEE WALTER L
IPC: C08F283/12
Filed: 1988-02-29
Granted: 1993-05-08
Abstract: 내용 없음.
Patent KR-910009723-B1 (KR)
Inventor: ALAYA GUMIHARU
IPC: E05D15/06
Filed: 1988-06-27
Granted: 1991-11-29
Abstract: 내용 없음.
Patent KR-910004615-B1 (KR)
Inventor: BOCSON DAVID A
IPC: F16L17/02
Filed: 1988-08-26
Granted: 1991-07-08
Abstract: 내용 없음.
Patent KR-0124054-B1 (KR)
Title: N-(1-alkyl-3-hydroxy-4-piperidinyl)benzamides of formula
Inventor: VAN DAELE GEORGES H P
IPC: A61K31/44
Filed: 1988-09-27
Granted: 1997-11-27
Abstract: Novel substituted N-(1-alkyl-3-hydroxy-4-piperidinyl)benzamides of formula <CHEM> the pharmaceutically acceptable acid addition salts and possible stereochemically isomeric forms thereof, which compounds are gastrointestinal stimulating agents; pharmaceutical compositions containing such compounds as an active ingredient and methods of preparing said compounds and pharmaceutical compositions.
Patent KR-940007944-B1 (KR)
Title: Data memory device
Inventor: CRONING DAVID V
IPC: G11B5/596
Filed: 1988-10-15
Granted: 1994-08-29
Abstract: A magnetic data storage system for use with a double sided disk in which a prerecorded pattern of opaque optical lines is used to define the tracks in which magnetic data is to be stored. A separate optical system including an illumination source and a photosensitive detector is provided on a read/write assembly for each side of the disk. Each detector is designed also to serve as a reference grating. The illumination source is designed to image the prerecorded pattern of optical lines on the reference grating as an indication of the alignment of the read/write head of the assembly and a desired data track and any misalignment of the head and track generates a servo signal. The detector uses four separate photocells interleaved in a prescribed fashion to form a quadrature detector that is adjustable to compensate for various non-uniformities. One form of illumination source uses a surface-emitting light emitting diode and optics for forming a multiple beam source.
Patent KR-920001346-B1 (KR)
Inventor: TANAKA TADAO
IPC: B60G15/00
Filed: 1988-10-18
Granted: 1992-02-11
Abstract: 내용 없음.
Patent KR-910006654-B1 (KR)
Inventor: KULAKOWSKI JOHN E
IPC: G11B7/24
Filed: 1989-01-18
Granted: 1991-08-30
Abstract: 내용 없음.
Patent KR-920001588-B1 (KR)
Inventor: FRONK CORNELIS
IPC: B63H5/16
Filed: 1989-03-02
Granted: 1992-02-20
Abstract: 내용 없음.
Patent KR-920002969-B1 (KR)
Inventor: MAENO YUTAKA
IPC: H05K3/34
Filed: 1989-04-27
Granted: 1992-04-11
Abstract: 내용 없음.
Patent KR-910007893-B1 (KR)
Title: The formative method of solid pattern on the surface of fabrics
Inventor: CHON YEONG-JOON
IPC: D06Q1/00
Filed: 1989-07-20
Granted: 1991-10-04
Abstract: A method for forming solid pattern on the surface of  fabrics comprises carving a pattern-shaped concave groove (2) of 0.8-1.0mm depth in the surface of the  plate  mold  (1),  filling  a  liquid pattern material (3) of a thermosetting synthetic  rubber  in  the groove (2), sticking  the  fabrics  on  the  filled  material  and pressurizing by the heat press of 120-170 deg.C for 20-30sec,  and separating the fabrics from the mold.
Patent KR-940004627-B1 (KR)
Inventor: MILLER DAVID J
IPC: B01J38/00
Filed: 1989-08-11
Granted: 1994-05-27
Abstract: 내용 없음.
Patent KR-950001773-B1 (KR)
Inventor: MILLER DAVID J
IPC: C07C45/50
Filed: 1989-08-11
Granted: 1995-03-02
Abstract: 내용 없음.
Patent KR-920000870-B1 (KR)
Title: Method for marking character or figure
Inventor: MIN HYO-KEUN
IPC: B41M5/00
Filed: 1989-11-03
Granted: 1992-01-30
Abstract: The marking method  comprises  (a)  coating  the  irregularly shaped surface  with  a  releasing  agent,  (b)  coating  with  an unsaturated polyester resin, (c) attaching a glass  fiber  to  the resin, (d) coating the fiber with an unsaturated polyester  resin, (e) cutting the characters or figures  in  a  larger  size  before drying the fiber, (f) covering the resin mold  with  the  textile, and (g) releasing th resin mold fromthe surface,  nd  cutting  the characters  and  figures.  The  polyester  resin  is  exchangeable urethane resin or plastic polyethylene resin.
Patent KR-920001725-B1 (KR)
Title: Cable
Inventor: NA JONG-JOO
IPC: H01B12/08
Filed: 1989-12-31
Granted: 1992-02-24
Abstract: Superconductive wirings or tapes are produced by (A)  keeping high temperature  equilibrium  concentration  of  oxygen  at  room temperature under the atmosphere of an inert gas in the process of superconductive powder calcination, (B) filling silver billet with the obtained superconductive powder, followed by closing  and  hot pressing, and (C) drawing  and  rolling  the  hot  pressed  silver billet into wirings or tapes. The produced wirings  or  tapes  are sintered at high temperature to suppress the oxygen generation and to elaborate oxide core.
Patent KR-960014107-B1 (KR)
Title: Transcription-based nucleic acid amplification/detection system
Inventor: GINGERAS THOMAS RAYMOND
IPC: C12Q1/68
Filed: 1988-06-17
Granted: 1996-10-14
Abstract: A method of amplifying a target sequence in a sample containing nucleic acid is provided which comprises hybridizing to the target sequence a first nucleic acid primer including a promoter sequence, extending the primer in a polymerase extension reaction complementarily to the target sequence to form a duplex, rendering the duplex single stranded, hybridizing to the extension product containing the promoter a second primer and carrying out a second extension reaction, and employing the second duplex as a template for the production of a plurality of RNA transcripts, the method being characterised in that the first and/or second primer includes a sequence necessary to allow the RNA product to be replicated by replicase induction and in that the RNA transcripts are so replicated.
Patent KR-970010918-B1 (KR)
Inventor: YOCHEN BURGDORF
IPC: B60T8/32
Filed: 1989-03-20
Granted: 1997-07-02
Abstract: 내용없음.
Patent KR-930002532-B1 (KR)
Inventor: TANAKA TADASHI
IPC: C22C21/00
Filed: 1990-06-02
Granted: 1993-04-03
Abstract: 내용 없음.
Patent KR-0153531-B1 (KR)
Inventor: EDOUIN ROBAATO EBANSU
IPC: C08L83/08
Filed: 1990-06-15
Granted: 1998-12-01
Abstract: 내용 없음.
Patent KR-970009118-B1 (KR)
Title: Preheating apparatus of video printer
Inventor: CHA DONG-ILL
IPC: B41J2/38
Filed: 1990-08-31
Granted: 1997-06-05
Abstract: The user orders printing, then the control part(13) drives the line memory(11), and stores the image signal. And the preheating signal generator(26) generates it and outputs it. The preheating time is set for the period from the end of the servo movement band to the end of the line memory band. With the preheating signal outputted, the control part(13) turns the switch(SW1) to contact with the preheating signal generator(26). The moment when the line memory band is over, the controller part(13) turns the switch(SW1) to contact with the decoder(19). In this way the approved tone of picture can be realized within 1/60 second to improve the expression of picture.
Patent KR-950008776-B1 (KR)
Title: Controller of upper headlight to turning direction
Inventor: HYON KI-SOK
IPC: B60Q1/08
Filed: 1990-12-24
Granted: 1995-08-08
Abstract: a steering angle sensor for outputting a vehicle turning state signal; an A/D converter for converting an analog signal from the steering angle sensor into a digital signal; a downward headlight switch for lighting a downward headlight; a forward illumination sensor for sensing light of forward vehicle; a comparator for comparing an output signal from the forward illumination sensor with a predetermined reference value to output a compared signal; left and right directional light switches; a flickering signal generator for generating a flickering signal by receiving output signals from the switches; a main processing unit for determining input signals from a plurality of input terminals to output a predetermined level of signals to a plurality of output terminals ; and a plurality of transistors, controlled by the output signals from the main processing unit.
Patent KR-930004404-B1 (KR)
Title: Refrigerator
Inventor: CHA KYONG-HWAN
IPC: F25D23/00
Filed: 1990-12-27
Granted: 1993-05-27
Abstract: The refrigerator which decreases noise  level  by  an  active control  comprises  a  microphone   receiving   noise   from   the compressor, a noise spectrum  part,  a  gain  adjusting  part  for obtaining the gain difference between the noise spectrum  received by the microphone and that of the noise spectrum part, a  transfer function part, a low band filter for  the  output  signal  of  the microphone,  a  parameter  estimation  part,  a  convolution  part generating a convolution control signal by the  transfer  function and a value of parameter estimation,  a  power  amplifier,  and  a speaker radiating the output  of  the  power  amplifier  onto  the periphery of the compressor. As a result  the  noise  level  of  a refrigerator comes to be lower.
Patent KR-0183663-B1 (KR)
Inventor: NA BO-KYU
IPC: H04B7/26
Filed: 1991-02-28
Granted: 1999-05-15
Abstract: 본 발명은 디지털무선전화기에서의 송신오프셋트 국부발진신호의 제어회로에 관한 것으로, 송신오프셋트 주파수 혼합방식을 채용하는 경우 송신오프셋트 주파수신호는 수신신호에 비해 매우 강한 신호이기 때문에 수신시에도 송신오프셋트 주파수신호가 남아 있으면 수신장애를 일으키게 되며, 이 때문에 전원절환스위치(202)등을 이용하여 주파수체배기(205)에 공급되는 전원공급을 제어하는 기술은 이미 선행기술로서 나와 있으나, 수신시에 발진기(204)로부터 주파수체배기(205)에 공급되는 발진주파수를 완전히 제어하지 못하는 단점이 있었다. 따라서 본 발명은 필요한 주파수보다 낮은 주파수를 발진하는 발진기(304)와, 그 발진주파수를 체배하여 출력하는 주파수체배기(305)와, 이 주파수체배기(305)에 공급되는 전원(301)을 제어함과 동시에 상기 발진기(304)로부터 상기 주파수체배기(305)에 공급되는 발진주파수를 제어하도록 구성된 제어수단(300)을 포함함으로써 수신시 발진기(304)로부터 출력되는 기본발진주파수가 제어수단내의 부하저항(R6)에서 전량 열로 소모되도록 하여 주파수체배기(305)에 어떠한 신호도 공급되지 않도록 하고 있다.
Patent KR-100237093-B1 (KR)
Inventor: TANAKA TOSHIHIKO
IPC: G03F1/68
Filed: 1991-05-31
Granted: 2000-01-15
Abstract: 위상 시프터법에 있어서 이용되는 위상 시프터에 빗살 형상 또는 도트 형상의 위상 시프트 패턴을 가하여 노광을 행한다. 이로서, 폭이 서로 다른 극히 미세한 라인 패턴 또는 스페이스 패턴을 동시에 형성할 수 있다. 또한, 상기 위상 시프터 패턴이 교차하도록 레티클을 배치하고, 각각 노광을 행함으로써 위상 시프터 패턴이 교차한 위치에 미세한 홀 패턴 또는 도트 패턴이 형성된다.