baber/WOPTO huggingface dataset:
Patent JO-2294-B1 (JO)
Title: 4-phenyl - pyridine derivatives
Inventor: BOES MICHAEL
IPC: A61P11/00
Filed: 2000-02-22
Granted: 2005-09-12
Abstract: The present invention relates to compounds of the general formula <CHEM> wherein R is hydrogen, lower alkyl, lower alkoxy, halogen or trifluoromethyl; R<1> is hydrogen or halogen; or R and R<1> may be together -CH=CH-CH=CH-; R<2> and R<2'> are independently from each other hydrogen, halogen, trifluoromethyl, lower alkoxy or cyano; or R<2> and R<2'> may be together -CH=CH-CH=CH-, optionally substituted by one or two substituents selected from lower alkyl or lower alkoxy; R<3> is hydrogen, lower alkyl or form a cycloalkyl group; R<4> is hydrogen, -N(R<5>)2, -N(R<5>)(CH2)nOH, -N(R<5>)S(O)2-lower alkyl, -N(R<5>)S(O)2-phenyl, -N=CH-N(R<5>)2, -N(R<5>)C(O)R<5> or a cyclic tertiary amine of the group <CHEM> R<5> is, independently from each other, hydrogen, C3-6-cycloalkyl, benzyl or lower alkyl; R<6> is hydrogen, hydroxy, lower alkyl, -(CH2)nCOO-lower alkyl, -N(R<5>)CO-lower alkyl, hydroxy-lower alkyl, cyano, -(CH2)nO(CH2)nOH, -CHO or a 5-or 6 membered heterocyclic group, optionally bonded via an alkylene group, X is -C(O)N(R<5>)-, -(CH2)mO-, -(CH2)mN(R<5>)-, -N(R<5>)C(O)-, or -N(R<5>)(CH2)m-; n is 0-4; and m is 1 or 2; and to pharmaceutically acceptable acid addition salts thereof. The compounds of formula I show a high affinity to the NK- 1 receptor. They may be used for the treatment of diseases, which relate to NK- 1 receptor antagonists.
Patent JO-P20170175-B1 (JO)
Title: Process for the preparation of androgen receptor antagonists and intermediates thereof
Inventor: LAITINEN ILPO
IPC: C07D207/34
Filed: 2017-10-10
Granted: 2021-08-17
Abstract: The present invention relates to an improved process for the preparation of carboxamide structured androgen receptor (AR) antagonists such as N-((S)-1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-yl)-propan-2-yl)-5-(1-hydroxyandnot;ethyl)-1H-pyrazole-3-carboxamide (1A) and key intermediates thereof such as 2-chloro-4-(1H-pyrazol-3-yl)benzonitrile (V). AR antagonists are useful in the treatment of cancer, particularly prostate cancer and other diseases where AR antagonism is desired.
Patent KR-820002258-B1 (KR)
Title: Mineograph
Inventor: NAGAOGA MIZIO
IPC: G03G15/00
Filed: 1976-01-09
Granted: 1982-12-08
Abstract: The appts. consists of the feed-back system which returns the sheet transferred by a paper-supplying system to the copy position on a sheet stand and stops.  An electric appts. having a 2nd step transmission function is linked to the main shaft & motor(M).  The control system(MS1) operates the electric appts. to rotate slowly by the start sign for suppling paper and after a short time to rotate fast.  Detctors(MS2,MS3) detect whether sheet is transferred to the copy position or not. the  the control appts. (T1) converts the electric appts. to low speed state and operates the clutch for supplying paper.  The control appts.(T2) stops motor(M) when sheet is returned to the copy position.
Patent KR-800000549-B1 (KR)
Title: Automatic lubricators for rings of a spinning machine
Inventor: INOUE YASUO
IPC: D01H7/52
Filed: 1976-08-21
Granted: 1980-06-21
Abstract: The combination of a holder for the ring of ring spinning machine or a twistion machine, the holder having at least one upwardly open, closed bottom recess therein, an oil supply tank removably mounted on the recess of the oil supply tnak having its botton of an oil opening, and an oil-retaining substance in the closed botom of the recess and having a wick extending therefrom to the point of the holder where the ring is held for automatic lubrication of the ring is disclosed.
Patent KR-800000735-B1 (KR)
Inventor: TAMAO YOSHIKUNI
Filed: 1976-12-13
Granted: 1980-07-30
Abstract: 내용 없음.
Patent KR-820000134-B1 (KR)
Title: Process for the preparation of carbanilic acid esters
Inventor: BOROSCHEWSKI G
Filed: 1977-06-04
Granted: 1982-02-20
Abstract: Title compds. (I; R1 = substituted or non-substituted aliphatic hydrocarbon; R2 = cyanoalkyl; R3 = substituted or non-substituted aromatic hydrocarbon; Y = O or S) were prepd. by reaction of II and amine of III in the presence of acid acceptor.  Thus, 43.9g 3-anilinopropionic nitrate was reacted with 68.7g chloroformic acid-3-methoxycarbonylamino-phenylester and 41.4g potassium carbonate to give 76.6g N-(2-cyanoethyl)-carbanilic acid-[3-(methoxycarbabonylamino)-phenyl  - ester.  I showed excellent herbicidal activity against 24 weeds at 3 kg/ha with no damage to cotton.
Patent KR-820000200-B1 (KR)
Title: Process for preparing aryl-alkylamine
Inventor: AUSTEL V
IPC: C07D237/32
Filed: 1977-08-31
Granted: 1982-03-04
Abstract: Title compds. (I; A = IV; R1 = H, C1-3 alkyl; R2 = R3 = C1-3 alkoxy; R4 and R5 are same or not, H, C1-3 alkyl; R6 = H or C1-3 alkoxy; R7 = C1-3 alkoxy; n = 2-3), useful as blood pressure decreasing agents, were prepd. by the reaction of II and III (Z = Cl, Br, I, alkylsulfonyloxy, arylsulfonyloxy).  Thus, 2.5 g 1-[4-methyl-6,7-dimethoxy-1-(2H)-phthalazinon-2-yl -2-bromoethane, 1.5 g 3,4-dimethoxyphenylethyl-N-methylamine and 3.5 g sodium carbonate were refluxed for 20 hr to give I.
Patent KR-830000863-B1 (KR)
Title: 경화 선별 장치
IPC: G07D5/08
Filed: 1980-02-29
Granted: 1983-04-21
Abstract: 내용 없음.
Patent KR-880000793-B1 (KR)
Title: Disc stroage controller
Inventor: KUWABARA SHIGEYUKI
IPC: G11B20/12
Filed: 1981-12-09
Granted: 1988-05-09
Abstract: Recording status information is received from an upper hierarchy device, the information indicating one of a number of different types of recording parameters of the information as recorded on the medium.  In response to the information and commands from the upper hierarchy device, the disc storage is controlled in accordance  with the parameter indicated by the information on the medium to effect read and write opperations on the medium.
Patent KR-880001521-B1 (KR)
Title: Fireproof putty composition
Inventor: ODA JUN-ICHIRO
IPC: C09K3/10
Filed: 1982-02-05
Granted: 1988-08-19
Abstract: A fire-resistant putty consists of (a) 100 pts. wt. of a polymer of chloroprene type, liq. at room temp. (b) 1-35 pts. chloroprene rubber, (c) 200-600 pts. of a water-insol. inorganic filler contg. water of hydration, and (d) 15-100 pts. of a heatresistant fibre. The putty, which is nondrying at room temp. is used in the electrical industry and in automobiles, to fill intermediate spaces and give water-and air-tightness, e.g. round electric cables passing through partitions.  The putty is easily worked, and has dimensional stability, and good elasticity and extensibility.
Patent KR-860001653-B1 (KR)
Title: Cleaner's raising woven fabric's making method
Inventor: HONG GIPMUN
IPC: D06N3/08
Filed: 1984-06-16
Granted: 1986-10-15
Abstract: This invention relates to raised fabric, which is used in getting rid of dust stuck on glasses. Synthetic fiber fabric is raised, and then is soaked in a mixed soln.. This soln. is composed of 10 wt.% of polyurethane resin, 0.05-0.2 wt.% of dioctyl phthalate (or dibutyl phthalate), 0.5-1 wt.% fo triphenylethane diisocyanate, 40-60 wt.% of dimethylformamide, 80-120 wt.% of acetone, and a small amount of dye. After the soaking process, the fabric is foamed in tin chloride soln., and then pressed to give raised fabric cleaner.
Patent KR-900008904-B1 (KR)
Title: Method and apparatus for manufacture of flattened flexible containers
Inventor: MYKLEBUST EIRIK
IPC: B31B33/00
Filed: 1984-11-09
Granted: 1990-12-11
Abstract: The present invention relates to a flattened flexible container made ready for filling with bulk material, and method and means for making a container comprising a liner of impervious sheet in an outer container of strong load-bearing material. The liner and the outer container are folded longitudinally in the same way such that the liner is kept in position by having its folds or gussets everywhere placed in the corresponding folds or gussets of the outer container. Both the liner and the outer container may have a longitudinal gusset on each side which can have a width of up to 1/8 of the container's circumference. The manufacture can be carried out in an apparatus (8) in form of a box which is open in both ends and can be folded together. Its side walls consist of longitudinal parts (7) which are connected to each other and the roof (4) and bottom (5) of the apparatus (8) by means of pliable connecting means (6). The container according to the invention can be filled with bulk material without prior inflation at the filling site.
Patent KR-890001933-B1 (KR)
Title: Pulverized coal relative distribution meter
Inventor: GALING WALTER L
IPC: G01N33/22
Filed: 1984-11-28
Granted: 1989-05-31
Abstract: The electric sensors sense an induced signal produced by charged pulverised coal particles.  For unbiased flow, the induced signal is proportional to the amount of flow in each pipe as the charge properties of the particles from the pulveriser are the same for all the pipes.  A circuit is connected to the sensors for obtaining a root mean square value of the induced signal which in turn is compared to each induced signal respectively to obtain a measurement of the relative flow in each pipe.  The induced signal can be intergrated twice to improve the correlation between flow and charge amount since the integrated value is independent of radial position for the charges in the pipes.
Patent KR-870000928-B1 (KR)
Title: Color staining method of fishing maggots
Inventor: AN JUNG-WON
IPC: A01K67/00
Filed: 1984-12-27
Granted: 1987-05-11
Abstract: This invention relates to the color staining method of fishing maggots which produce as good effect as fishworm. Maggots hatched within a few days are filled in a vessel, and the food is not supplied in order to make maggots go near starvation. After 5-8 hours, the coloured power food is fed and maggots become stained with red.
Patent KR-910007921-B1 (KR)
Inventor: DEMARIO EDMOND E
IPC: G21C3/356
Filed: 1984-12-29
Granted: 1991-10-04
Abstract: 내용 없음.
Patent KR-870000067-B1 (KR)
Title: Circular knitting machine's cylinder antirevolving apparatus
Inventor: INAMODO YOOICHI
IPC: D04B15/14
Filed: 1985-02-01
Granted: 1987-02-09
Abstract: Appts. is claimed for rotatably supporting a base tube fixed to the lower end of a cylinder in a knitting machine. It has support fittings with support rollers adjustable in height on annular machine bed. The tube is supported on the rollers.
Patent KR-880000348-B1 (KR)
Title: Preparation of composition for rice-plant fever
Inventor: PARK BYONG-HA
IPC: A01N65/08
Filed: 1985-02-05
Granted: 1988-03-20
Abstract: An antifungal substance contg. caproic, bytric, n-valeric and iso- valeric acids was extd. from palslane (Portulacae Herba) and used for treating rice blast desease.  Thus, palslane was steamboiled for 20- 30min at 100≰C > and pressed with a compressor to give palslance concentrate.  The concentrate was extd. with MeOH and vacuum-concd.. The concd. ext. was dissolved in water. Water-sol. fraction was adjusted with HCl to pH 3.0 and extd. with ethylacetate and vacuum- concd..  The concd. ext. was extd. with nhexane, vacuum-concd., applied to Wacogel C-200 column, and eluted with n-hexane/ ethylacetate solvent system.  The elute was pooled, concd., extd. with acetone, and concd. to give a white, oily material.
Patent KR-890000447-B1 (KR)
Title: Anti-corrosive production for recovery facility of light oil
Inventor: LEE JONG-RYOL
IPC: C23F11/12
Filed: 1985-10-08
Granted: 1989-03-17
Abstract: The compsn. for anti-corrosive agent comprises (i) 8hydroxyquinoline 0.008-0.05 wt.%, (ii) calcium oleate 0.08-0.2 wt.% and (iii) toluene 0.005-0.08 wt.%.  When SS-41 plate (50X70X0.5mm) is deposited in circulating light oil contg. novel anti-corrosive agent. for 6-24 hrs at 135 deg.C, then the degree of corrosion shows av. 39 mdd (mg/ dm2.day).  Anti-corrosion was achieved to be about 3 times better than the conventional art.
Patent KR-900001387-B1 (KR)
Title: Air cushion shoe sole
Inventor: HUANG ING-CHUNG
IPC: B29C49/04
Filed: 1985-11-19
Granted: 1990-03-09
Abstract: The air cushioned shoe sole is made by (a) blowing a tubular enclosure of synthetic plastic material; (b) pressing the enclosure between two mould halves; (c) inflating the enclosure whilst between the mould halves to force it into contact with the interior walls of the mould.  The air cushioned sole better absorbs impact shock.
Patent KR-930004194-B1 (KR)
Inventor: HEBISEN PAUL
IPC: C07D277/20
Filed: 1985-12-19
Granted: 1993-05-21
Abstract: 내용 없음.
Patent KR-920010926-B1 (KR)
Inventor: KASZTREINER ANDRE
IPC: A61K31/341
Filed: 1986-01-10
Granted: 1992-12-24
Abstract: 내용 없음.
Patent KR-930007897-B1 (KR)
Inventor: ALBREHEUT MAINEKE
IPC: D21D5/02
Filed: 1986-01-28
Granted: 1993-08-21
Abstract: 내용 없음.
Patent KR-930012216-B1 (KR)
Inventor: FREIBERG ALAN L
IPC: C08K13/02
Filed: 1986-05-23
Granted: 1993-12-24
Abstract: 내용 없음.
Patent KR-920000582-B1 (KR)
Inventor: KURAMOTO SADORU
IPC: B21C49/00
Filed: 1986-09-05
Granted: 1992-01-16
Abstract: 내용 없음.
Patent KR-900001589-B1 (KR)
Title: Bias circuit of avalanche photo diode for optical communication
Inventor: CHANG JONG-JIN
IPC: G02B6/00
Filed: 1986-10-23
Granted: 1990-03-15
Abstract: The circuit comprises an amplifier (100) amplifying the DC signal from an amplifier (900) for covering the range of reverse bias voltage of APD, a rectifier (200) for halfwave rectifying of AC signal from the amplifier (200) and for transmitting DC voltage whose value is the same as the peak value of the halfwave rectified signal, a comparator (300) for transmitting low DC level when the peak DC level is higher than a reference voltage and high DC level in the opposite case, an AGC checker (400) for checking and displaying the operation of the APD, and a high voltage biasing unit (500) for adjusting the reverse bias voltage by upgrading and degrading the multiplication factor according to the output signal of the comparator.
Patent KR-900002874-B1 (KR)
Title: Process for preparing acyl ureido penicillin derivatives
Inventor: KIM DON-KI
IPC: C07D499/12
Filed: 1987-05-30
Granted: 1990-05-01
Abstract: Acylureido penicillin derivs. of formula (I) are prepd. by reacting akylenediisocyanate of formula OCN-(CH2)n-NCO with thiol of formula (II) in an inert solvent to obtain thioester of formula (III), and reacting (III) with 6-substd.-amino penicillane acid of formula (IV) in a polar solvent.  (I) are useful as antibiotic agents.
Patent KR-900005921-B1 (KR)
Title: Hangle/english character displaying arrangements
Inventor: KIM KI-SUB
IPC: G06F3/153
Filed: 1987-07-31
Granted: 1990-08-16
Abstract: The circuit comprises a CPU (100), a video RAM (400) to read/ write the Hangul/English codes, a CRT controller (200 to provide address signal to the video RAM by timing signal, a mode register (1000) to decide parallel or serial modes, a latch circuit (500) connected to the output terminal of the video RAM and to latch the Hangul/English character code of the video RAM by display address from the CRT controller, a decoder (700) to generate 1 byte or 2 byte character code corresponding to the output of the latch circuit and the selection control section (600), and a display section (900) to display the output of a character generator (800).
Patent KR-900006165-B1 (KR)
Title: High-voltage follow and sensing circuit
Inventor: LIM YOUNG-HO
IPC: G01R31/28
Filed: 1987-11-30
Granted: 1990-08-24
Abstract: The circuit for operating the special mode circuit by outer signal and applying the outer voltage to the special mode circuit comprises first, second and third bias supplying taps (300-500), a reference voltage maintaining circuit (20), a voltage reducing circuit (10) dropping the input voltage, a voltage tap (300), a constant current circuit (40), and a buffer (50). The voltage reducing circuit comprises a number of transistors connected with diodes. The reference voltage maintaining circuit supplies the second bias voltage reduced to a certain level to a control node (60).
Patent KR-960003458-B1 (KR)
Inventor: MORIO HOMAN
IPC: A61K6/891
Filed: 1987-12-26
Granted: 1996-03-14
Abstract: 내용 없음.
Patent KR-960000038-B1 (KR)
Inventor: TAKAGAWA RYOZO
IPC: C07C69/54
Filed: 1988-04-11
Granted: 1996-01-03
Abstract: 내용 없음.
Patent KR-910003178-B1 (KR)
Title: A graver
Inventor: CHO YONG-KU
IPC: B44B11/02
Filed: 1988-05-24
Granted: 1991-05-22
Abstract: The turret graver comprises a rotating member for rotating  a work piece by  a  rotating  motor,  a  angle  control  member  for rotating or moving a work piece in a proper angle, a front to rear feeding member and  a  right  to  left  feeding  member  including respective feeding motors, an  up  and  down  feeding  member  for minutely controlling the depth of cut, a height control member for adjusting the height of the work piece by a handle.
Patent KR-930006555-B1 (KR)
Title: Multifunction remote controlling circuit
Inventor: SONG KWAN-HUI
IPC: H04Q9/00
Filed: 1988-06-30
Granted: 1993-07-16
Abstract: The circuit adds another select key function to the key matrix comprises the steps of controlling kinds of electronic devices, performing the calculator function, displaying the remote command running status on the display window with a form of characters ro figures responding to the selected key operation, and informing the present running status to the user by flickering the designated protion of the display unit window.
Patent KR-930005571-B1 (KR)
Title: Korean character seperation method by ratio of width and height
Inventor: JONG CHAN-UI
IPC: G06K9/78
Filed: 1988-08-31
Granted: 1993-06-23
Abstract: The method separates each letter from consecutive  characters utilizing a ratio of character  width  to  character  height.  The method  comprises  the  steps  of:  (A)  calculating   consecutive characters histograms in vertical and horizontal  directions;  (B) comparing  magnitude  of  histogram  in  vertical  and  horizontal directions;  (C)  discriminating  that  current  region   is   one character region when the ratio is similar to 1 to 1 and otherwise adding next horizontal histogram to current horizontal  histogram; (D) comparing the magnitude of horizontal  histogram  to  vertical histogram; and (E) repeating the steps (B) to (D) until the  ratio becomes 1 to 1.
Patent KR-960013940-B1 (KR)
Title: Intermittent drive mechanism
Inventor: LEE KYU-SUNG
IPC: F16H29/00
Filed: 1988-12-29
Granted: 1996-10-10
Abstract: a base(1); an index table(3) mounted rotatably on the base(1), having a plurality of work positions(P1-P18) formed equidistantly, and plural guide pulleys; an index driving device(2) for intermittently rotating the index table(3) at a angle corresponding to the respective work positions(P1-P18); a jig(23) that is mounted rotatably on the work positions(P1-P18) by a bracket(4), and has a locking plate(26) with a driven pulley(24), and a groove(25); a plurality of heads(5) with a locking bar(27); a belt(6) that is connected to the guide pulley of the index table(3) and the driven pulley(24) of the head(5), so as to rotate them; a reduction device(7) having a driving pulley(10) and a driving gear(11); a connection shaft(12) comprising a driven gear(13) and a small gear(14), that engage with the driving gear(11) of the reduction device(7); a contact member(15) rotatably installed at the connection shaft(12); a hollow shaft(16) that is mounted rotatably on the contact member(15), with a driven gear(17) engaging with the small gear(14) of the connection shaft(12); and a slide shaft(19) that is fixed at the hollow shaft(16), with a friction pulley(22) selectively engaging with driven pulley(24) of the head(5), to reduce the rotative speed of the jig(23).
Patent KR-920001039-B1 (KR)
Inventor: BUCHHOLZ FREDRIC L
IPC: C08F4/40
Filed: 1989-01-14
Granted: 1992-02-01
Abstract: 내용 없음.
Patent KR-970004352-B1 (KR)
Inventor: HORNAK LEONARD P
IPC: G21C5/06
Filed: 1989-02-10
Granted: 1997-03-27
Abstract: 없음
Patent KR-920001390-B1 (KR)
Inventor: NAKANO MINORU
IPC: C23C30/00
Filed: 1989-04-12
Granted: 1992-02-13
Abstract: 내용 없음.
Patent KR-920000356-B1 (KR)
Title: F.a co2 laser power system
Inventor: LEE JAE-GAB
IPC: H01S3/02
Filed: 1989-09-26
Granted: 1992-01-11
Abstract: The power supply raises the output of the laser generator  up to 1 KW. The  power  supply  includes  a  protective  circuit  for protecting the power supply from arc current, a current controller having a ballast register to form a simpler current controller,  a high tension circuit including a thyristor  (70,  a  high  voltage transformer (8), a rectifier (9), and a stabilizer (21)  to  apply high voltage to discharge  tubes  (20-20d),  a  voltage  regulator including a feedback circuit (16), a current controller (17) and a differential voltage adjuster (14) for holding the tube voltage at certain level, a trip circuit (15) for preventing the initial  arc current, and a discharge state  detector  (22)  connected  to  the stabilizer to maintaining the tube voltage.
Patent KR-0121169-B1 (KR)
Title: A bi-cmos buffer circuit
Inventor: JUNG SANG-KI
IPC: H03K19/00
Filed: 1989-12-21
Granted: 1997-12-04
Abstract: A BI-CMOS buffer circuit enhances a buffer speed, prevents a latch-up, and reduces a chip area. A base of PNP transistor(X2) is connected to a collector of a transistor(X1) and a cathode of a diode(D1). Emitter of PNP transistor(X2) connects a resistor(R1) to a gate of NMOS transistor(X3). Source of NMOS transistor(X3) is connected to anode of diode(D1), and is connected to a gate of MOS transistors(X4,X5,X7) via inverter(IN1). Source of NMOS transistor(X7) is connected to a resistor(R2) and a drain of NMOS transistor(X9). Drain of NMOS transistor(X7) is connected to a base of bipolar transistor(X8). An output terminal of inverter having PMOS transistor(X4) and NMOS transistor(X5) is connected to a base of bipolar transistor(X6). Emitter of a bipolar transistor(X6) and a collector of a bipolar transistor(X8) are connected to an output terminal(Vout).
Patent KR-0172597-B1 (KR)
Inventor: LING WEI-CHUEN
IPC: A47C3/02
Filed: 1990-01-11
Granted: 1999-02-18
Abstract: 내용없음.
Patent KR-920004242-B1 (KR)
Inventor: KONTI PAORO
IPC: D04B15/34
Filed: 1990-03-07
Granted: 1992-05-30
Abstract: 내용 없음.
Patent KR-0163580-B1 (KR)
Inventor: KABATA MASATERU
IPC: F16K11/085
Filed: 1990-03-17
Granted: 1998-12-01
Abstract: 본 발명은 유체방향 조정밸브에 관한 것이다. 본 유체방향 조정밸브에는 회동 밸브의 회동 밸브의 회동축 주위에서의 각운동을 위하여 중공 회동 밸브가 밸브 채임버 내에 수용된다. 회동 밸브는 제1, 제2 및 제3 개구부를 갖는다. 회동 밸브에 의해 형성되는 유체 통로는 구조가 간단하다. 제1밀봉은 밸브 채임버 내에 형성된 제1, 제2 및 제3출구 포트 주위에 배열되고 회동 밸브의 외측 원주면과 꼭 밀착된다. 한 쌍의 원주상 요홈이 회동 밸브 양단의 외측 원주면에 각각 구비된다. 요홈의 쌍은 경사진 저부를 갖는다. 한 쌍의 제2환상 밀봉은 원주상 요홈과 각각 동심관계로 배열된다.
Patent KR-0138981-B1 (KR)
Inventor: YANG HYUNG-HAN
IPC: D01D5/06
Filed: 1990-04-13
Granted: 1998-05-01
Abstract: 내용없음
Patent KR-930008517-B1 (KR)
Inventor: ITOH YOSHIYASU
IPC: F23N1/00
Filed: 1990-06-13
Granted: 1993-09-09
Abstract: 내용 없음.
Patent KR-940001101-B1 (KR)
Inventor: SEKINE SHIGERU
IPC: G06F1/16
Filed: 1990-09-07
Granted: 1994-02-14
Abstract: 내용 없음.
Patent KR-920007246-B1 (KR)
Title: Combustion chamber in piesel engine
Inventor: PARK JUN-YONG
IPC: F02B23/06
Filed: 1990-11-10
Granted: 1992-08-28
Abstract: The combustion chamber for increasing the  output  of  engine and dereasing exhaust gas, properly controls flow of  suction  air and maintains the optimised state of fuel  and  air  mixture.  The comtustion chamber comprises a cavity (2) formed by eight straight lines (3), four big-arcs (4) and four small-arcs (5) in the  upper portion of the piston (1); round-top projected section (6) at  the center of the cavity (2). The radius of  the  small  arcs  (5)  is 17-25 % of the inscribed circle radius in the cavity (2).
Patent KR-920010634-B1 (KR)
Title: Electric vacuum cleaner
Inventor: LEE SONG-BIN
IPC: A47L9/04
Filed: 1990-12-06
Granted: 1992-12-12
Abstract: The cleaning head for collecting dust,  water-cleaning  floor simultaneously and filtering sucked water, comprises suction inlet body (2) formed with inner suction space  (21);  safety  container space (31) connected  with  the  space  (21);  front/rear  suction nozzles (23a)(23b) formed at the front/rear sides  of  the  floor; cleaning material  (4)  between  the  nozzles  (23a)(23b);  safety container body (3)  combined  with  suction  inlet  body  (2)  for assembling/separation.