baber/WOPTO huggingface dataset:
Patent KR-890004741-B1 (KR)
Title: Optical connector ferrule and process for producing thereof
Inventor: GAKIE TOSHIAKI
IPC: G02B6/36
Filed: 1985-03-21
Granted: 1989-11-25
Abstract: The optical fiber connector ferrule comprises a body of synthetic resin material(3) having a radially extending flange(31) and a metal sleeve(5) surrounding that portion of the body forward of the flange.  The rear end of the sleeve is embedded in the synthetic resin material at the boundary between the flange and the remainder of the body.  Pref., the flange end of the main body protrudes past the end of the sleeve and has a tapered configuration forward of the sleeve. The inner surface of the sleeve is formed with an irregular surface in contact with the resin material.
Patent KR-890000460-B1 (KR)
Title: Filter medium and method of manufacturing the same
Inventor: WADA YONEDGI
IPC: B01D35/06
Filed: 1985-05-29
Granted: 1989-03-18
Abstract: A filter medium consists of a twisted porous tape and an embedded absorbing agent.  The tape is made from a filter paper or an unwoven fabric.  The absorbing agent is pref. an activated carbon, an active kaolin, a water absorbing resin or magnetized particles.  The filter medium is manufactured by continuously folding a strip of porous material into a V-shape, adding the absorbing agent and wrapping the tape round the agent.  The filter medium is used to form a cylindrical filter for filtering an engine oil.
Patent KR-880002475-B1 (KR)
Title: D.c. multi-phase bi-polar brushless motor
Inventor: LEE YI-SU
IPC: H02K29/03
Filed: 1985-08-21
Granted: 1988-11-14
Abstract: The motor (1) comprises a sensing part (3) and a controlling part (6) .  The stator is independently wound in each phase (2 phase, 3 phase, ... M phase).  The rotor has the pole members of 2 N (2 pole, 4 pole, .... 2N pole).  The multi-phase bipolar brushless DC motor is smoothly rotated by the controlling signal which supplies rectangular wave electric current.
Patent KR-930010456-B1 (KR)
Inventor: OHWADA JUNICHI
IPC: G02F1/133
Filed: 1985-08-27
Granted: 1993-10-25
Abstract: 내용 없음.
Patent KR-880002061-B1 (KR)
Title: Plane speaker
Inventor: KIM TAE-HONG
IPC: H04R7/04
Filed: 1985-09-25
Granted: 1988-10-14
Abstract: The speaker places a drive cone (9) formed asymmetrically on the eccentric axis from the center of plane oscillation plate (10) so that partial resonance of the plate (10) is dispersed to reduce distortion or unnecessary peak phenomenon of the reproduced sound caused by convergence of the resonance sound.
Patent KR-910003136-B1 (KR)
Inventor: DAVIES GLYDWR J
IPC: C08K3/08
Filed: 1986-03-14
Granted: 1991-05-20
Abstract: 내용 없음.
Patent KR-910002560-B1 (KR)
Inventor: MATSUMOTO KOUICHI
IPC: B21B29/00
Filed: 1986-04-01
Granted: 1991-04-26
Abstract: 내용 없음.
Patent KR-900000072-B1 (KR)
Title: Method of manufacturing of gate type fet with narrow channel
Inventor: SIRATO DAGEHIDE
IPC: H01L21/762
Filed: 1986-05-29
Granted: 1990-01-19
Abstract: The manufacturing method of a field effect transistor (FET) has the following steps : (a) selectively injecting the first impurities of a first conductivity type into the semiconductor substrate around the transistor region ; (b) subjecting the semiconductor substrate to a heat process for diffusing the first impurities, causing the first impurities to be distributed throughout a greater part of the channel region ; (c) selectively injecting the second impurities of a second conductivity type into the transistor region, so that the first impurities in at least the channel region are substantially compensated by the second impurities.
Patent KR-900005742-B1 (KR)
Title: An optical arm for use with a sighting apparatus fixedly mounted on a vehicle
Inventor: WEBER CLAUDE
IPC: G02B23/08
Filed: 1986-07-26
Granted: 1990-08-09
Abstract: A device for compensating movements between an observer in a vehicle and an optical observation apparatus mounted on the vehicle, the device being of the periscopic type comprising an arm, which is articulated in parallel planes and comprises a first vertical part of the arm suspended from the observation apparatus and a second horizontal part of the arm carrying an ocular support, the arm including angle bends in which the incident beam is directed by a system of parallelmirrors and/or prisms to the ocular suppot, wherein the articulation means is arranged to allow the ocular support to be displaced freely horizontally and vertically in a single plane perpendicular to the path of the incident optical beam of the apparatus but not parallel thereto.
Patent KR-910006595-B1 (KR)
Inventor: MORINO YOCHIO
IPC: B65G33/20
Filed: 1986-10-15
Granted: 1991-08-29
Abstract: 내용 없음.
Patent KR-900002165-B1 (KR)
Title: Photosensitive composition
Inventor: KIM CHONG-SOO
IPC: G03C1/52
Filed: 1986-12-31
Granted: 1990-04-02
Abstract: (a) 15-25 wt.% sensitizer of formula (I) or (II) which can form image by developing with ammonia after exposure to uv-ray; (b) 15-25 wt.% coupler: 3:1:1 mixt. of resorcinol, fluoroglucinol and pyrogallol; (c) 40-60 wt.% cellulose acetate propiorate; and (d) 3-15 wt.% 5-sulfosalicylic acid.  In the formulas, R1= R2= H or unsubstd. C1-4 alkyl; R3= R4= unsubstd. C1-5 alkyl.  The compsn. is useful for prepg. diazoprocess-nonsilveric film.
Patent KR-900000119-B1 (KR)
Title: Pwm method of forced commutated cycloconverter
Inventor: PARK SONG-BAE
IPC: H02M1/08
Filed: 1987-07-06
Granted: 1990-01-20
Abstract: The method for eliminating the harmonics and for controlling output voltage modulates the pulse width of the switching function.  A sinusoidal signal is biased so that the mininum value becomes zero for solving the constrained condition caused by pulse width modulation.  A triangular wave is modulated so that one pulse is obtained at every 30 ↿ during the half period of the switching function.  A pulse that will be generated between 90 ↿ and 120 ↿ is generated near 90 ↿, and a pulse that will be generated between 120↿ and 150 ↿ is generated near 120 ↿.  No pulse is generated between 150↿ and 180 ↿.
Patent KR-910001168-B1 (KR)
Title: Television mirror screen circuit using frame memory
Inventor: LEE KYUNG-KEUN
IPC: H04N5/262
Filed: 1987-11-17
Granted: 1991-02-25
Abstract: A circuit for generating the  mirror  screen  using  a  frame memory comprises  a  HF  amplifying/detecting  session  (1)   for amplifying/detecting a RF signal, a  television  signal  processor (2)  for  writing   a   complex   video   signal   from   the   HF amplifying/detecting session to a frame memory of for reading  the pixel data stored in the frame memory, the frame  memory  (5)  for storing the complex  video  signal  temporarily,  a  sync.  signal divider 94)  for  dividing  the  complex  video  signal  into  the vertical and horizontal sync. signals, a reading address  provider (7) for providing the reading  address  to  the  frame  memory,  a writing address provider (6), and a controller for  providing  the control signal to the reading and writing address providers.
Patent KR-900005870-B1 (KR)
Title: Semiconductor device
Inventor: CHO BOOK-LYONG
IPC: H01L21/8242
Filed: 1987-11-17
Granted: 1990-08-13
Abstract: a first conductive type of semiconductor substrate (1); a second conductive type of semiconductor region (2) formed onto the substrate; a polysilicon layer (6) formed on the region (2) and separated from the insulating film (2); a silicide film (7) formed onto the polysilicon layer; a buried polysilicon layer (9) formed on the silicide film; and an aluminum metal layer (10) formed onto the silicide film and polysilicon buried layer. The buried polysilicon layer is separated from the silicide film by the oxide film (8).
Patent KR-960000564-B1 (KR)
Title: Process for the preparation of a modified elastomeric polymer
Inventor: ANTONIUS A BROEKHUIS
IPC: C08F8/00
Filed: 1987-12-31
Granted: 1996-01-09
Abstract: Process for introducing a conjugated diolefin linkage in an elastomeric polymer by (a) reacting the polymer having an active group containing an alkali metal atom with a 2,3-ethylenically unsaturated aldehyde or ketone to produce an alkali metal salt, (b) converting this salt into the corresponding alcohol, and (c) dehydrating this alcohol.
Patent KR-910008307-B1 (KR)
Title: Process for producing antistatic papers
Inventor: BAEK JIN-SANG
IPC: D21H27/12
Filed: 1988-01-18
Granted: 1991-10-12
Abstract: An antistatic paper is produced by (a) mixing 80% water  with 5% turkey red oil and 10% carbon black, and  agitating  the  mixt. for 2 hr, (b) adding  1%  surfactant,  1%  neutralizer  and  0.25% impregnating agent to the mixt.,  and  agitating  the  mixt.,  (c) adding 0.25% impregnating agent and 0.5% promoting  agent  to  the mixt., and agitating the mixt. to obtain a  liquid  carbon  black, (d) mixing an additive with the carbon black (the mixing  ratio  = 1:1), (e) coating the mixt. on the paper in three, and (f)  drying the coated paper in the hot dryer of 15-200 deg.C at the  velocity of 10-20 m/min. The antistatic paper is used for protecting IC.
Patent KR-970004199-B1 (KR)
Inventor: HUKUDA TOKUYA
IPC: H04N9/84
Filed: 1988-02-03
Granted: 1997-03-25
Abstract: 내용없음
Patent KR-900008911-B1 (KR)
Inventor: CHO YOUNG-HO
IPC: C23F11/10
Filed: 1988-07-04
Granted: 1990-12-11
Abstract: 내용 없음.
Patent KR-920002796-B1 (KR)
Inventor: HAN KAP-WON
IPC: C11B1/06
Filed: 1988-08-29
Granted: 1992-04-03
Abstract: 내용 없음.
Patent KR-910009033-B1 (KR)
Inventor: FEYGENSON ANATOLY
IPC: H01L21/033
Filed: 1988-10-15
Granted: 1991-10-28
Abstract: 내용 없음.
Patent KR-910009897-B1 (KR)
Title: Heat adhesive resin composition
Inventor: CHONG JONG-KU
IPC: C08L23/06
Filed: 1988-12-03
Granted: 1991-12-03
Abstract: The heat adhesive resin compsn. comprises (A) 90-10 wt.  pts. of the compsn. comprising 75-99 wt.% of ethylene, and 25-1 wt.% of the unsatd. carboxylic acid to be nentrialized 5-70% thereof  with natrium or zinc ion;  and  (B)  10-90  wt.  pts.  of  low  density polyethylene having 0.1-3 of the  melt  index  at  190  deg.C  and 0.917-0.927 of the density. Pref. the compsn. of the ethylene  and unsatd. caroxylic acid has 0.,1-3 of the melt index at 190  deg.C. The obtd. resin compsn. has the excellent adhesive  strength,  the wide range of heat adhesive temp. and  good  extrusion  stability, and can  be  made  to  the  film  by  the  common  inflation  film apparatus.
Patent KR-960009647-B1 (KR)
Title: Paucilamellar lipid vesicles
Inventor: WALLACH DONALD F H
IPC: C11D17/00
Filed: 1988-11-11
Granted: 1996-07-23
Abstract: A new method of producing paucilamellar lipid vesicles has been developed. The vesicles are made of non-phospholipid surfactants. The paucilamellar lipid vesicles have 2-8 lipid bilayers surrounding a central cavity which may be filled with either an aqueous-based solution or an oil or wax.
Patent KR-960002182-B1 (KR)
Inventor: KIMURA KIYOSHI
IPC: A61K38/06
Filed: 1988-04-07
Granted: 1996-02-13
Abstract: 내용 없음.
Patent KR-920006480-B1 (KR)
Inventor: MCCARTHY DONALD J
IPC: B23B31/12
Filed: 1989-01-20
Granted: 1992-08-07
Abstract: 내용 없음.
Patent KR-910006440-B1 (KR)
Title: Alarm device which senses voltage and temperature in a telephone office
Inventor: HYON YANG-SU
IPC: G08B21/00
Filed: 1989-02-04
Granted: 1991-08-24
Abstract: The circuit  supervises  the  rate  voltage  (-48V)  and  the temperature of the rack. When the rate voltage is not appeared,  a contact of a breaker (4) is turned off to  turn  on  a  transistor (Q3) which turns on a relay switche (SW4), then a LED of an  alarm lamp (7) is truned on to show the voltage failure. When  the  rack temperature rises up to certain degree, a bimetal switch (SW1)  of a sensor (6) is turned on to turn on a transistor (Q1),  then  the rate voltage applied between a relay switch (SW2)  is  applied  to the LED of the alarm lamp to show the over temperature.
Patent KR-930005939-B1 (KR)
Inventor: TANAKA MASAKI
IPC: D06M13/02
Filed: 1989-02-25
Granted: 1993-06-29
Abstract: 내용 없음.
Patent KR-0127745-B1 (KR)
Inventor: BOCCADORO MARCO
IPC: B23H7/18
Filed: 1989-03-07
Granted: 1997-12-30
Abstract: 본 원은 가공물에 따라 가공전극의 위치를 조정하기 위한 공작기계용 서보제어장치에 관한 것으로 가공 전극과 가공물의 거리결정수단, 오차 계산수단, 제어수단을 가진 제어장치에서 저역통과 필터통과 회로가 조절가능한 차단주파수를 갖고, 그 차단주파수는 가공전극에 공급된 처리펄스의 하나 이상의 파리미터에 의존함을 특징으로 하는 공작기계용 서어보 제어장치.
Patent KR-950002946-B1 (KR)
Inventor: GONDO MASAO
IPC: G10H7/00
Filed: 1989-03-08
Granted: 1995-03-28
Abstract: 내용 없음.
Patent KR-910006869-B1 (KR)
Title: Burner for cooking stove
Inventor: MIZUNO HAQUMON
IPC: F23N5/10
Filed: 1989-03-29
Granted: 1991-09-09
Abstract: The burner has a projected section with comb-type  teeth  and flame holes between teeth, for ejecting the mixed gas. The  burner comprises a burner body having a mixing  chamber  for  mixing  the fuel gas with the first air, a circular rim  with  many  holes;  a burner   head   having   comb-type   teety   and   flame    holes; thermosensitive element at the outer rim, for passing  flame  from the flame holes; a projected section having  deep  grooves,  being opposite to the thermosensitive element, and  shallow  grooves;  a flat section for stabilizing flame. The burner prevents the  flame lifting on the fire-control and the fire-extinguishing during  the ignition.
Patent KR-920002516-B1 (KR)
Title: Carrying equipment for lead frame of semiconductor chip
Inventor: KWAK NOH-KWON
IPC: H01L21/50
Filed: 1989-05-24
Granted: 1992-03-27
Abstract: The apparatus includes an arm part (3) having a grip (1)  for gripping a lead frame and for being actuated by a cylinder (2).  A driving  part  (6)  performs  horizontal  and   primary   vertical movements, and includes a two-rod cylinder (7), a rack/pinion (5), whereas a rotary cylinder (8) is coupled  with  the  driving  part (6), and performs secondary vertical movements. The arm  part  (3) is connected to a lifting jaw (16) and to a hinge pine  (14),  the lifting jaw (16) being actuated by a reciprocating  cylinder  (2). The driving part (6) moves back and forth along a  horizontal  rod (9), while the two-rod cylinder (7)  is  installed  on  a  bracket (21). The rack/pinion (5) is provided under a carrying block (25), and the rotary cylinder (8) is fixedly attached  to  the  carrying block (25) by means of bolts (28).
Patent KR-910010143-B1 (KR)
Inventor: IMAMURA HUMIHIRO
IPC: A47J31/42
Filed: 1989-05-25
Granted: 1991-12-17
Abstract: 내용 없음.
Patent KR-910008058-B1 (KR)
Title: Car cover
Inventor: LEE GON-WOO
IPC: B60J11/00
Filed: 1989-06-05
Granted: 1991-10-07
Abstract: The  apparatus  mounted  on  a  passenger  vehicle,  performs various functions of a sun shade, a spoiler, a simple tent, and  a cover for protecting a car body from the frost, snow, or rain. The apparatus comprises a spoiler shaped body (2) attached on a  trunk door (1) and having inner roll chamber (12) for  winding  sunshade screen (3) on the shaft (11), the front-opened chamber  (10)  with front supporter (4) passing through rear supporter (4') via  guide hole (17), compressed rubber (15), lower  latch  (13)  and  higher latch (13'), combined with a auxiliary cover (5) and a door (7).
Patent KR-930005423-B1 (KR)
Inventor: SEJAKI YUKINORI
IPC: G03G15/16
Filed: 1989-07-03
Granted: 1993-06-21
Abstract: 내용 없음.
Patent KR-930002527-B1 (KR)
Title: Process for the production of steel from fine ore
Inventor: WEBER RALPH
IPC: C21B13/14
Filed: 1989-10-04
Granted: 1993-04-03
Abstract: Fine ore is reduced in a circulating fluidized bed by a reduction gas in the presence of fine coal, the discharged mixture of iron sponge particles and fine coal is subjected to hot compacting and then fed to a melting vessel in which oxygen is injected into the molten material through nozzles. The melting vessel can also be supplied with scrap which has been pre-heated by the hot waste gases from the melting vessel, in a scrap pre-heater which is fitted onto the melting vessel.
Patent KR-970005643-B1 (KR)
Title: 2/4 way interleave decoder
Inventor: JUNG TAEK-YUN
IPC: G11C16/06
Filed: 1989-10-31
Granted: 1997-04-18
Abstract: 2/4 way interleave decoder inserts a part of two programs into another program, performs 4 programs at the same time, decodes an output signal with a low address, and enhances a system function when the low address decoded signal is added to a page type auxiliary logic. The 2/4 way interleave decoder connects input signals(A19-A23) decoding output signals(RAS,CAS)to a NAND gate(NA1), connects input signals(S  -SI) selecting an interleave mode to an input of the NAND gates(MAN1-MNA3), connects the input signals(S  -SI) to another input of NAND gates(MAN1-MNA3) through an inverter(I2), connects an input signal(MIO) to another input of the NAND gates(MNA1-MNA3)?connects an input signal(Ref) to an input of NAND gates(NA2-NA5), and connects an output of the NAND gates(MNA1-MNA3) and the NAND gate(NA1) to the NAND gates(NA2-NA5) and buffers(G1-G4). A decoding of the output signals(BAS  -RAS3)(CAS  -CAS3) is decoded with row addresses(A1,A2) of a CPU.
Patent KR-920008337-B1 (KR)
Inventor: LILLELUND STIG
IPC: B65D43/04
Filed: 1989-11-13
Granted: 1992-09-26
Abstract: 내용 없음.
Patent KR-0157405-B1 (KR)
Inventor: POLACZEK JERZY
IPC: C07C/
Filed: 1989-11-30
Granted: 1998-12-01
Abstract: 내용없음
Patent KR-920010675-B1 (KR)
Inventor: HANAOKA MASAYUKI
IPC: H01L29/872
Filed: 1989-12-06
Granted: 1992-12-12
Abstract: 내용 없음.
Patent KR-930000511-B1 (KR)
Title: Telemeter encoder in autodetection system
Inventor: HAN BONG-SHIK
IPC: G01D5/12
Filed: 1989-12-26
Granted: 1993-01-21
Abstract: The  telemetering  apparatus  has  a  telemeter  encoder  for counting the output pulse of a pulse-type meter and producing  the data in response to the  read  demand  signal  from  a  subscriber matching  apparatus.  The  telemeter  encoder  comprises  a  meter setting  information  section  (19),  a  BCD  converter  (20)  for counting the input pulse, an oscillator (25),  a  controller  (26) for producing the control signals (CS1-CS3) in response to a  data transmission signal (CMD), a  buffer  (22),  a  decoder  (21)  for producing the data selection signal, a parity/format producer (23) for adding the parity bit in the signal from  the  buffer,  and  a shift register (24) for converting  the  parallel  data  into  the serial data.
Patent KR-920006187-B1 (KR)
Title: Method for connection power line and ground line
Inventor: KIM DAE-YONG
IPC: H01L27/04
Filed: 1989-12-29
Granted: 1992-08-01
Abstract: The method for forming metallic wirings around devices  of  a high integrated  semiconductor  memory  comprises  forming   thin openings on the edge and intermediate  portions  of  the  metallic wirings, thereby  preventing  the  generation  of  cracks  on  the metallic wirings, and  supplying  power  to  an  internal  circuit sufficiently.
Patent KR-970006089-B1 (KR)
Inventor: OLOVSO GUDMAR
IPC: A61M5/50
Filed: 1988-11-22
Granted: 1997-04-23
Abstract: 내용 없음.
Patent KR-910004862-B1 (KR)
Inventor: TAKESHITA TAKUO
IPC: C23C14/08
Filed: 1988-12-08
Granted: 1991-07-15
Abstract: 내용 없음.
Patent KR-0145697-B1 (KR)
Inventor: WOOD JAMES A
IPC: B61C15/08
Filed: 1990-02-21
Granted: 1998-08-17
Abstract: 내용없음
Patent KR-920007903-B1 (KR)
Title: Waste oil incinerator
Inventor: JO KIL-KWENG
IPC: F23G7/05
Filed: 1990-04-03
Granted: 1992-09-19
Abstract: A waste oil combustor installs a  nozzle  in  the  combustion room. The nozzle is  inclined  toward  the  blowing  pipe  and  is connected to U member as a pre-heating means. The blowing pipe  in the combustion room is also inclined and opens  a  number  of  air holes. The first air holes are horizontal holes  and  horizontally inclined holes in combination. The second to nineth air holes  are only  horizontally  inclined  holes.  The  tenth  air  holes   are horizontal holes. The horizontal pipe opens only two downward  air holes. The horizontally inclined holes on the  blowing  pipe  help air circulation in the  combustion  room,  thereby  promoting  the combustion of uncombusted fuel.
Patent KR-0144856-B1 (KR)
Inventor: MOON WILLIAM G
IPC: G11B21/21
Filed: 1990-05-31
Granted: 1998-07-15
Abstract: 내용없음
Patent KR-0159941-B1 (KR)
Inventor: NOKUCHI KOKI
IPC: G06F17/30
Filed: 1990-07-23
Granted: 1999-02-01
Abstract: 내용 없음.
Patent KR-930009168-B1 (KR)
Inventor: IKARI AKIRA
IPC: B60S3/04
Filed: 1990-07-25
Granted: 1993-09-23
Abstract: 내용 없음.
Patent KR-100197303-B1 (KR)
Inventor: JOSE TORAL
IPC: B65D85/67
Filed: 1990-10-26
Granted: 1999-06-15
Abstract: 내부 보어에 제공된 릴 코어(6) 또는 스풀상에 감긴 다수의 테이프형 기록 매체(5)용 포장 용기는 두개의 팰리트(1, 2)와 축 중심(10)에서 상승하며 직경이 릴 코어(6)의 보어의 명백한 내경에 상응하는 임의적 허브(3)로 이루어진다. 포장 용기는 그위에 인장될 수 있는 수축 필름(4)에 의해 밀폐될 수 있다. 함께 결합될 수 있는 입방형 팰리트(1, 2)는 그 모서리에 홈형 노치(7)를 가지며 형상을 재생하는 팰리트의 내부와 하나의 노치(7)에 형성되는 수축 필름(4)의 용접 이음이 팰리트의 내측이 팬케이크(5)의 외측 형상을 재생하며, 수축 필름(4)의 용접 이음(8)이 하나의 노치(7)에 형성된다. 팰리트(1, 2)도 4개의 협소측상에 창문형 절개부(9)를 가진다. 팬케이크의 축 중심(10)을 거쳐 통과하는 허브(3)뿐만 아니라 팰리트는 스티로포어로 구성된다.
Patent KR-0150208-B1 (KR)
Inventor: BERIGER ERNST
IPC: C07D401/12
Filed: 1990-11-14
Granted: 1998-10-15
Abstract: 본 발명은 히드라진 수화물을 하기 일반식(Ⅱ)의 화합물과 반응시키고, 생성된 일반식(Ⅲ)의 화합물을 가수분해시키는 것을 포함하는, 하기 일반식(Ⅰ)의 아미노트리아진 유도체의 제조 방법에 관한 것으로서, 이 화합물은 유효한 살충제를 제조하기 위한 출발물질로서 적합하다: 
     
       
     
     상기식에서 R은 수소; C 1 -C 6 알킬; C 3 -C 6 시클로알킬; 1 내지 10의 할로겐원자에 의해 또는 C 1 -C 3 알콕시, C 1 -C 3 알킬티오 및 페닐로 이루어진 군으로 부터 선택된 1 내지 3의 라디칼에 의해 치환된 C 1 -C 4 알킬; 페닐; 또는 할로겐, 메틸, 에틸, 메톡시, 메틸티오 및 니트로로 이루어진 군으로 부터 선택된 1 내지 3의 라디칼에 의해 치환된 페닐이고, R 1 은 수소; C 1 -C 4 알킬; C 3 -C 6 시클로알킬; 1 내지 9의 염소원자에 의해 치환된 C 1 -C 4 알킬; C 1 -C 3 알콕시; C 1 -C 3 알킬티오; C 1 -C 3 알킬술피닐; C 1 -C 3 알킬술포닐; 페닐; 할로겐, 메틸, 에틸, 메톡시, 메틸티오 및 니트로로 이루어진 군으로 부터 선택된 1 내지 3의 라디칼에 의해 치환된 페닐; 또는 피리딜이다.
Patent KR-940000362-B1 (KR)
Inventor: AOKI HOROYUKI
IPC: G06T7/40
Filed: 1990-12-01
Granted: 1994-01-17
Abstract: 내용 없음.
Patent KR-920010633-B1 (KR)
Title: Electric vacuum cleaner
Inventor: PARK DOK-KUN
IPC: A47L7/00
Filed: 1990-12-06
Granted: 1992-12-12
Abstract: The cleaner head for collecting  dust,  water-cleaning  floor simultaneously and filtering sucked  water,  comprises  front/rear suction nozzles (21a)(21b) for sucking dust mounted at the  bottom of head main body (2); cleaning material (3)  for  cleaning  floor surface mounted at the bottom of the body (2) between the  nozzles (21a)(21b); combining means for combining the  material  (3)  with the  bottom  of  the  body  (2)  for  assembling/separation.   The combining means has support frame (22) for inserting the  material (3) to the bottom  of  the  body  (2);  fastening  frame  (4)  for supporting the material (3) and fastening it at the outside.
Patent KR-940006667-B1 (KR)
Title: Removing non-reactive gas and reaction restraint apparatus
Inventor: KIM YUN-KI
IPC: H01L21/205
Filed: 1991-02-18
Granted: 1994-07-25
Abstract: The apparatus is for suppressing reaction of gas remaining in a reaction tube in the form of positive or negative ion and for removing particle sources. The apparatus includes a MF (19) and a valve (10) for stopping gas supply when a layer is growth sufficiently, a pump (4) for ventilating ionized gas remaining in a tube (8), a plate electrode (13) for coupling the remnant ionized gas, and a main controller (11) for controlling current supplied to the plate electrode (13).
Patent KR-940010682-B1 (KR)
Inventor: BUTSUEN TETSURO
IPC: B60G17/0165
Filed: 1991-04-17
Granted: 1994-10-24
Abstract: 내용 없음.
Patent KR-930007733-B1 (KR)
Title: Method of separated and defined for methacrylic acid
Inventor: BAEK HAENG-NAM
IPC: C07C7/10
Filed: 1991-05-01
Granted: 1993-08-18
Abstract: A method for separating and purifying methacrylic acid in  an aq. soln. of methacrylic acid comprises selectively-extracting the methacrylic acid with a mixt. solvent of  at  least  one  selected from C6-14 aliphatic,  alicyclic  or  aromatic  hydrocarbon,  C4-7 ketone or ester, and at least one selected  from  phosphoric  acid ester or phthalic acid ester. The C6-14 aliphatic  hydrocarbon  is hexane, heptane, octane, nonane, decane, undecane or dodecane; the alicyclic   hydrocarbon   is   cyclohexane,     methylcyclohexane, cycloheptane, ethylcyclohexane, isopropyl cyclohexane or decarine; the aromatic hydrocarbon is benzene, toluene, xylene, ethylbenzene or tetralin.