baber/WOPTO huggingface dataset:
Patent KR-820001333-B1 (KR)
Title: Receiver for compatible am stereo signals
Inventor: HILBERT F
IPC: H04H40/36
Filed: 1978-09-27
Granted: 1982-07-23
Abstract: The AM receiver comprises an input stage(11, 12) for receiving the compatible stereo signal of (I+L+R)cos(Wct+0) and translating the signal to an intermediate frequency signal.  A detector(16) is coupled to the input stage for providing the output signal which is proportional to the (L-R)cos.  A corrector circuit(17, 22, 23, 25) which is coupled to the detector(16) provides a correctional signal for use in restoring exact sum and difference signals.
Patent KR-800001462-B1 (KR)
Title: Process for preparing the cosmetic raw material from skim milk
Inventor: LEE BYUNG SOON
IPC: A61K8/98
Filed: 1979-05-01
Granted: 1980-12-10
Abstract: A new cosmetic raw material is prepared from skin milk(solid 8.5%) or mixture of skim milk and dried skim milk(solid 9-25%) by lactic acid-fermentation and hydrolysis of casein. lactabacillus 2-3% for fermentation, and neutral and acid protease for hydrolysis are  added to react for 20-24 hours. The product, composed of ingredient similiar to Natural Moisturizing Factor, has excellent skin-moisturizing effect and increase skin elasticity. As a result of acute oral toxicity, Draise test and human patch test, it was proved to be nontoxic.
Patent KR-820002384-B1 (KR)
Title: Aeration apparatus in wastewater treatment
Inventor: SEUGIURA EIIJJI
IPC: C02F3/22
Filed: 1979-07-13
Granted: 1982-12-29
Abstract: In aeration system for effluent treatment plants, liquid held in a pond or sump is aerated by means of a circulating pump(1) which has air injected into the suction line.  The suction line is convected to a circular device which is immersed in the tank(C).  This is surrounded by a perforated screen(B) mounted on the base of the tank.  Liq.  from the pump with the entrained air is pumped down into a circular duct above the device.  This has a set of outlets around it which are at an angle to the radius.  Some liq.  is drawn in round slots in the center of the device.  Used for aeration of effluent tanks, etc.  gives improved aeration & O2 absorption using air compared with existing series.
Patent KR-830002450-B1 (KR)
Title: 치환 프로린의 메르캅토아실 유도체의 제조방법
IPC: A61P9/12
Filed: 1979-08-10
Granted: 1983-10-26
Abstract: 내용 없음.
Patent KR-830001595-B1 (KR)
Title: 오픈-앤드 정방기
IPC: D01H4/18
Filed: 1979-10-26
Granted: 1983-08-16
Abstract: 내용 없음.
Patent KR-830002879-B1 (KR)
Title: 간극 밀봉구
IPC: E06B7/22
Filed: 1980-05-28
Granted: 1983-12-29
Abstract: 내용 없음.
Patent KR-840001512-B1 (KR)
Title: Method for producing pertussis toxid
Inventor: SUOGUDA YUKIO
IPC: A61K39/095
Filed: 1981-01-23
Granted: 1984-09-29
Abstract: Pertussis toxoid was prepd. by culturing the strain Bordetella pertussis. Thus, Bordetella pertussis was cultured in a liq. medium (for example, Cohen-filter medium) at 35oC for 5-7 days. The resulting culture broth was filtered and concd. The supernatant was treated with ammonium sulfate and the resulting ppt. was dissolved in lM NaC1-0.05M phosphate buffer soln. Endotoxin of the soln. was removed by sucrose density gradient centrifugation (gravity=62000-122000xg; sucrose conc.=0-60 wt/wt% for 10-24 hr). Exotxin was reacted with formaldehyde without basic amino acids to give clotted mon-toxic vaccine, which has immunogenic activity protecting babies against pertussis.
Patent KR-850001165-B1 (KR)
Title: Analysing method of minus ion
Inventor: HORIUCHI SUSUMU
IPC: G01N30/00
Filed: 1981-03-12
Granted: 1985-08-16
Abstract: Anion, such as borate ion, in a liquid sample is analyzed quantitatively by measuring the electrical conductivity of the liquid mixture added to a multivalence alcohol that forms a complex compound with the borate ion. Mobility of the sample is obtained from the electrical conductivity data measured by an electric conductivity detector in the cell. Sensitivity of an anion having low electrical conductivity increases in ion chromatography by incerasing H+ ions as a result of the formation of the complex.
Patent KR-880000469-B1 (KR)
Title: Annealing furnaces
Inventor: DERAKATO YOOGI
IPC: C21D9/52
Filed: 1982-02-11
Granted: 1988-04-07
Abstract: The invention includes; a furnace structure (11) having an opening (12) on the top for feeding a steel strip; the first cover member (21) being provided with slits (25), (26) and being movable in the direction of the strip width to shut the opening; the second cover member (41) being positioned under the first cover (21) and having a partition wall (47) for dividing the heating chamber (16) into two parts, one for heating and the other for soaking.  The room (15) formed between the cover members prevents the strip from the sudden exposure to the cool atm.
Patent KR-860001113-B1 (KR)
Title: A process for polymerizing vinyl chlovide
Inventor: TOYOKA EIETZU
IPC: C08F2/00
Filed: 1982-05-21
Granted: 1986-08-13
Abstract: The polymerization of vinyl chloride alone or its monomeric mixt. with other monomers is improved by coating, prior to polymerization, the surfaces of a polymerization reactor, agitator blades, and a reflux condenser. The coating consists of a reaction prod. of a phenolic compd. with benzaldehyde at 40 - 120 ≰C for 1 - 40 hrs. The polymerization is carried out at 40 - 80 ≰C in gaseous phase or liq. phase in a suspension using an oil-sol. initiator, e.g. di-2- ethylhexyl peroxydicarbonate.
Patent KR-880002163-B1 (KR)
Title: Decorder for transmitted message activation code
Inventor: FENNELL ROBERT D
IPC: H04B/
Filed: 1982-10-12
Granted: 1988-10-17
Abstract: A limited audio signal is received and input to an echo chip for correlation with a stored address.  A code plug in the form of a twelve by six PROM provides the stored address.  Control logic leads the programmable timer of the control logic with appropriate time intervals.  These define the maximum periods allowed for given sequences of events.  A transmitted message may be a preamble, a pager address or a control word.  It is sent as a cell divided into two words, each of which is, in turn, divided into word halves.  For correlation the echo chip reads the code plug, one half word at a time.
Patent KR-870001463-B1 (KR)
Title: Process for preparation of aromatic alkane derivatives
Inventor: NAKATANI KIYOSHI
IPC: C07C255/37
Filed: 1983-05-18
Granted: 1987-08-12
Abstract: Aromatic alkane derivs. (I; opt. substd. phenyl or naphthyl; R1=methyl, ethyl or isopropyl; R2=H or methyl or R1 and R2 together with the C-atom to which they are attached form an opt. substd- cycloalkyl and R3 is the residue of an alcohol R3OH) useful as insecticides and acaricides, are prepd.  (I) have low toxicity to warmblooded animals and fish and do not cause environmental pollution problems, undesired residues, etc.
Patent KR-850001347-B1 (KR)
Title: Printing method of typewriter having daisywheel
Inventor: KWON SUNG-TAE
IPC: B41J7/00
Filed: 1983-12-31
Granted: 1985-09-21
Abstract: Each printing area of the inward and outward rows (3,4), having a slope ( ) with the spoke (10) of the print wheel (1), is typed on the horizontal axis (V) and the hammering positions (M,M'). The types are typed on n-pieces of the hammering positions and on the horizontal axis (V), in which they are typed through npieces of the typing rows (3,4). The types (5,6) are constructed vertically with the row of types (M,M').
Patent KR-840000408-B1 (KR)
Title: Process for preparing cephalosporins
Inventor: WETZEL DR BERND
IPC: C07D501/36
Filed: 1980-06-21
Granted: 1984-03-31
Abstract: Cephalosporins (I; R=H, Me, cyclopropyl, OH, OMe, OEt, SH, amino; A=optionally substituted Ph, cyclohexyl, 1-cyclohexenyl, 2,4-cyclohexadienyl, thienyl, furyl; D=H, OH, OAc, O2CNH2, pyridinium, carbamoylpyridinium, heterocyclylthio; E=H, protective group) were prepd.  Thus, diphenylmethyl-7-β-{D-α-[(4-hydroxy-2-p-methyl-aminosulfonylanilino-5-pyrimidinyl)ureido -p-hydroxyphenylacetamido}-3-[(1-methyltetrazol-5-yl)thiomethyl -ceph-3-em-4-carboxylate was treated with MeOH, chloroform, and LiOCH3 to give its Na-salt.
Patent KR-870001837-B1 (KR)
Title: Monoscope and stereophonic television device
Inventor: SAKARIASSEN ARNVID
IPC: H04N13/04
Filed: 1984-04-02
Granted: 1987-10-15
Abstract: The TV set includes  such  that a transmitter, reviving equipment or image producing equipment transmits a piar of two identical or different monoscopic images on the same or two different channels or transmission frequencies, that at least one or more display have in front side eye elenses or mirrors, that a receiver has more than one high integrated circuit for each display to receive one image and/or reinforce and distribute video components.  The receiver is placed within the unit of eyeglasses or binocular form.
Patent KR-890001742-B1 (KR)
Title: Highly pure nitrogen gas producing apparatus
Inventor: YOSHINO AKIRA
IPC: F25J3/02
Filed: 1984-04-16
Granted: 1989-05-19
Abstract: An apparatus consisting of (a) air compressor (9), (b) a pair of column (12) filled with mol. sieve for adsorption of CO2 and H2O in compressed air, (c) a storage tank (5) for liq. N, (d) heat-exchanger (13,14) for cooling compressed air to ultralow temp. and (e) refining tower (18); liquefy O by bp difference between O and N and exhaust N as gas only.  In the above, liq. N used as cryogen in heat-exchanger and, simultaneously, gasified N after exchanging is mixed with N gas from tower (18) to produce highly pure (99,999%) N.
Patent KR-890004095-B1 (KR)
Title: Magnetic recording device
Inventor: TUEROKA MIZUHARU
IPC: G11B15/66
Filed: 1984-04-19
Granted: 1989-10-20
Abstract: The magnetic tape recorder/player has a facility to use an adaptor that has a format corresponding to a standard size tape cassette that is designed to receive a miniaturized cassette.  The adaptor is loaded through a front panel slot (12) in the recorder. Access for loading the miniature cassette is provided from the top (14).  With the tape cassette adaptor one of the spools is aligned with the drive spigot.  The other spool engages with gearing that provides transmission to give the correct center distance.  The loading operation involves movement between two positions.
Patent KR-890005217-B1 (KR)
Inventor: HATORI HIROYUKI
IPC: H04N7/081
Filed: 1984-07-05
Granted: 1989-12-18
Abstract: 내용 없음.
Patent KR-890003390-B1 (KR)
Title: Laser light source device
Inventor: SIRASAKI MASADAGA
IPC: G01R33/032
Filed: 1984-09-26
Granted: 1989-09-19
Abstract: A faraday rotator is provided at the laser side front of a reflection plane of an external resonator so that clockwise and counter- clockwise circular polarised light components, having frequencies slightly different from each other, are generated.  The resonator can have an eigen mode with liner polarisation light components crossing each other perpendicularly in the oscillating direction.  A polarisation stage of a light component can be rotated by 90 deg. by one emission-and-return through either of two elements e.g. quarter- wave plates, one of which is arranged between the faraday rotator and the laser and the other between another reflection plane and the laser.
Patent KR-900009222-B1 (KR)
Inventor: HAUGHOM KELL
IPC: E21B19/14
Filed: 1985-05-18
Granted: 1990-12-24
Abstract: 내용 없음.
Patent KR-910009858-B1 (KR)
Inventor: OCHSNER ARNOLD
IPC: B21D22/04
Filed: 1985-06-13
Granted: 1991-12-03
Abstract: 내용 없음.
Patent KR-900007824-B1 (KR)
Title: Method of shoot tip culture of rheum sp.
Inventor: KANEKO KOU
IPC: A01G1/00
Filed: 1985-08-23
Granted: 1990-10-20
Abstract: A method for the sheet apex cultivation of the palmate leaf rhubarb is described in which the shoot-formation and the propagation are carried out in a medium contg. benzyl adenine (1) or its nucleoside and naphthalene acetic acid (II) or beta-indole acetic acid (III) and then the shoot-formation is carred out in a medium cong. only either of (II) and (III) as the growth hormone. The method gives a uniform seedling, an ideal maintenance of the species and stable gain of the useful medical substance. In an example, the growing point is taken out of the growing root top of hokkai rhubarb of rheum palmatum species by Walkey et al's method.
Patent KR-890000666-B1 (KR)
Title: Process of cold rolled steel sheet having a good ductility
Inventor: CHONG KI-JO
IPC: C21D9/46
Filed: 1985-12-31
Granted: 1989-03-22
Abstract: Al-killed steel including C 0.002-0.004 wt.%, Mn below 0.03%, N below 400ppm, B 10-40 ppm is hot rolling at the reheating temperature (1250≰C) and finishing temperature (890≰C) and coiling at 600-700≰C and then cold-rolling and at the continuous annealing temperature (760- 850≰C) homonizing during one minute and cooling with 10-15≰C/sec. This method does without over-aging.
Patent KR-890000114-B1 (KR)
Inventor: SHIBANAI ICHIRO
IPC: A61K8/49
Filed: 1985-02-22
Granted: 1989-03-08
Abstract: 내용 없음.
Patent KR-900007597-B1 (KR)
Title: Device for placing a sleeve in a tube of a steam generator
Inventor: HALLER HANS
IPC: F22B37/00
Filed: 1986-03-11
Granted: 1990-10-17
Abstract: The steam generator having a tube sheet, tubes ending in the tube sheet and a chamber adjoining the tube sheet having an access opening formed. A device is disposed in the chamber for inserting a sleeve into one of the tubes in partial insertion strokes. The inserting device includes a movalbe clamp holding and moving the sleeve in axial direction of the tube in one of the partial insertion strokes. A stationary clamp is associated with the movalbe clamp holding the sleeve during a backstroke of the movable clamp.
Patent KR-940006359-B1 (KR)
Inventor: NEMODO TSUNEO
IPC: G11B23/087
Filed: 1986-05-21
Granted: 1994-07-18
Abstract: 내용 없음
Patent KR-890003158-B1 (KR)
Title: Drying-dripping apparatus for frp
Inventor: YU JAE-CHON
IPC: B29B13/06
Filed: 1986-06-18
Granted: 1989-08-25
Abstract: An apparatus includes (a) roving grille wound with fiber yarn, (b) dipping bath (12) having guide rollers (8,8') and conveyor rollers (9a,9b,9c,9d) to dip fiber yarn into thermosetting resin, (c) a guide metal form, (d) a die with a preheater, (e) conveyor rollers, (f) a cutter, (g) a drying chamber (7) having thermo/ hygrometer (4), air inlet/outlet (5,5'), far ir oscillator (2,2'), open/close door (3,3') and rollers (1,1') and (h) water pipe (11) joined with the prehater at the bottom of bath (12).
Patent KR-940004000-B1 (KR)
Inventor: SAWADA HIDEKATSU
IPC: C12R1/625
Filed: 1986-08-19
Granted: 1994-05-10
Abstract: 내용 없음.
Patent KR-910006574-B1 (KR)
Title: Assembly method for head drum
Inventor: LEE SEUNG-JAI
IPC: G11B5/52
Filed: 1986-11-29
Granted: 1991-08-28
Abstract: The method connects the coil of rotary transformer core  (35) and the head directly without the connection board. A fixed flange (32) is formed by assembling the axis assembly  (30)  on  a  lower drum (10). A lower drum is assembled to the upper  drum  (20)  and separated by releasing a boss (41) after  fastening  with  certain pressure. Then the coil of the transformer core is soldered to the head, which are placed between the upper drum and the  transformer core. And the lower drum is assembled again by adjusting the  boss angle.
Patent KR-960000409-B1 (KR)
Inventor: FUSHIMI TSUNEHISA
IPC: B23D65/00
Filed: 1986-12-27
Granted: 1996-01-06
Abstract: 내용 없음.
Patent KR-950009754-B1 (KR)
Inventor: SAKAMOTO HIROSHI
IPC: C08L63/00
Filed: 1987-01-27
Granted: 1995-08-28
Abstract: 내용 없음.
Patent KR-940002385-B1 (KR)
Inventor: COOK RONALD F
IPC: D04H1/72
Filed: 1987-04-30
Granted: 1994-03-24
Abstract: 내용 없음.
Patent KR-920008193-B1 (KR)
Inventor: OHASHI KENJO
IPC: F16D69/04
Filed: 1987-07-15
Granted: 1992-09-25
Abstract: 내용 없음.
Patent KR-900005394-B1 (KR)
Title: Process for the preparation of anti-corrosive paints
Inventor: RYU CHUNG-KUN
IPC: C09D5/08
Filed: 1987-09-23
Granted: 1990-07-28
Abstract: 45-65 pts. wt. of epoxymodified chilate resin soln. which is obtd. by esterification of bisphenol type epoxy resin of formula (I) by fattic acid and then chilation by chilate metal cpd.; 5-10 pts. wt. of Al2O3; 5-10 pts. wt. of ThO2; 10-15 pts. wt. of ZrO; 5-10 pts. wt. of Ce2O3; 1-5 pts. wt. of SnO2. In formula, M is multivalent metal.
Patent KR-910005202-B1 (KR)
Title: Method for continuously extruding an elastomeric material on the interflor of a continuous tubular woven fabric in a loom
Inventor: JONCKER HELMUT
IPC: B29C48/09
Filed: 1987-09-25
Granted: 1991-07-23
Abstract: A method and apparatus for continuously extruding an elastomeric material 27 on the interior of a continuous tubular woven fabric 8 in a loom 1. The apparatus comprises motive means 3 for creating relevant movement between an extruder 2 and the woven fabric, sensing means for detecting stoppage of said loom or extruder and control means 4 responsive to said sensing means directing said motive means to move said extruder relative to said woven fabric. A tubular woven fabric having an interior layer extruded directly onto the interior of the tubular woven fabric is also disclosed.
Patent KR-900007394-B1 (KR)
Title: Process for the preparation of 2-(4-hydroxyphenyl)2-methylpropyl alcohol
Inventor: SON BYUNG-KI
IPC: C07C37/05
Filed: 1987-12-07
Granted: 1990-10-08
Abstract: 2-(4-Hydroxy phenyl)-2-methyl-propyl alcohol of formula (I) comprises (a) reacting 2-(4-amino phenyl)-2-methyl propyl alcohol with sodium nitrite and acid solution to form a cpd. of formula (II) and (b) heating diazonium salt of formula (II) in the presence of tivalent- and divalent metallic salts or catalyst of divalent- and monovalent metallic salts at -10-100 deg. C to form (I).
Patent KR-940008038-B1 (KR)
Inventor: KOBLER ROBERT J
IPC: H01R13/52
Filed: 1986-04-25
Granted: 1994-09-01
Abstract: 내용 없음.
Patent KR-900000745-B1 (KR)
Inventor: IMONTI MAURIS M
IPC: A61B17/22
Filed: 1986-07-25
Granted: 1990-02-15
Abstract: 내용 없음.
Patent KR-900007826-B1 (KR)
Title: Oven for cooking foods
Inventor: KAMINSKI DANIEL S
IPC: A21B1/48
Filed: 1988-01-13
Granted: 1990-10-20
Abstract: A cooking chamber has a pair of openings in two opposite facing walls. A conveyor extends through the side wall openings in the chamber for conveying a food product through the chamber. Two pairs of impingement finger ducts are provided for forming a plurality of columnated air jets and for impinging the jets against descreet points of a feed product supported on the conveyor. A first one of each of the pairs of finger ducts is disposed above the conveyor and a second one of each of the pairs of finger ducts is disposed below the conveyor. Two plenums, each of which has a fan associated with it supply air to the finger ducts. A siggle burner is associated with the plenums for simultaneously supplying thermal energy to both plenums.
Patent KR-960014933-B1 (KR)
Inventor: COLCLOUGH TERENCE
IPC: C10M141/12
Filed: 1988-02-27
Granted: 1996-10-21
Abstract: 내용없음.
Patent KR-950004159-B1 (KR)
Title: Improvements in fibre reinforced plastics structures
Inventor: BAILY ANDREW E
IPC: D21H17/28
Filed: 1988-03-11
Granted: 1995-04-27
Abstract: An air permeable sheet-like structure comprising 5% to 50% by weight of reinforcing fibres (1) which are between about 5 and about 50 millimetres long, and from 50% to 95% by weight of wholly or substantially unconsolidated particulate non-cross-linked elastomeric material (3), and in which the fibrous (1) and elastomeric components (3) are bonded (2) into an air permeable structure.
Patent KR-900004124-B1 (KR)
Title: Method for preparing stained glass
Inventor: KIM CHEOL-JUNG
IPC: C03C27/06
Filed: 1988-05-31
Granted: 1990-06-16
Abstract: A sheet of stained glass is manufactured by the stages of sanding or glue-chipping one side of normal plate glass, placing it in the mixed solution of 50 wt.% water and 50 wt.% fluoric acid for 2 hours, washing with water, drying in electric furnace at 200 deg. C, silk- screening the mixture of 90 wt.% pigment, 9 wt.% squeeze oil and 1 wt.% solvent, on the other side of glass, sintering at 600-650 deg. C for 45-60 minutes in tunnel furnace, cooling slowly, silk-screening again the mixture, resintering at 580-63o deg.  C for 45-60 minutes, and cooling slowly.
Patent KR-960014533-B1 (KR)
Inventor: HORIKI SEINOSUKE
IPC: C23C14/04
Filed: 1988-07-28
Granted: 1996-10-16
Abstract: 내용 없음.
Patent KR-910003656-B1 (KR)
Inventor: AOKI SINICHI
IPC: H01T1/00
Filed: 1988-09-22
Granted: 1991-06-08
Abstract: 내용 없음.
Patent KR-920006341-B1 (KR)
Inventor: YAMAMODO GAZUHIJA
IPC: B60N2/06
Filed: 1988-10-07
Granted: 1992-08-03
Abstract: 내용 없음.
Patent KR-930010958-B1 (KR)
Title: Connector and disposable assembly utilizing said connector
Inventor: MALMBORG BENGT E
IPC: A61M5/00
Filed: 1987-09-07
Granted: 1993-11-18
Abstract: A disposable assembly comprises a drug container (2) having at one end an opening which is surrounded by an outwardly directed flange (7). A connector (1) has a sleeve (13) which is closed (14) at one end and open at its opposite end to receive the flanged end of the drug container as a plunger. Positioning means (18,19) provided within the sleeve and cooperating with the flange define an inserted and a retracted position of said sleeve relative to the flanged end of the drug container. A piercing member (15) provided at the closed end of the sleeve is directed towards the open sleeve end. A connecting member (16) provided at the closed sleeve end is directed opposite to said piercing member (15) and communicating therewith by means of a through passage (17).
Patent KR-920006586-B1 (KR)
Title: Method for spray-working refractory composition
Inventor: YORITA EIICHI
IPC: F27D1/16
Filed: 1987-02-13
Granted: 1992-08-10
Abstract: A refractory compsn. is spray-worked by adding one-fifth to three-quarters of the amt. of water required for spray-working, and loading the mixt. into a dry spraying gun, introducing the rest of the water in the spray nozzle of the gun when spraying. The refractory compsn. contains 93-60% (by wt.) refractory substrate (e.g. fireclay, bauxite, alumina, sillimanite, mullite, silicon carbide, zircon, magnesia or chromite); 5-30% refractory powder (e.g. fireclay, kaolin, silica, alumina, zircon, magnesia or silicon carbide, pref. with grain size below 50 micron); 1-20% alumina cement (pref. a water-hardenable high-alumina cement conforming to JIS alumina cement 1 or 2); 0.01-0.5% dispersant (e.g. alkali metal phosphate or polyphosphate, pref. sodium hexametaphosphate or sodium ultrapolyphosphate) and 0.01-2% curing promoter (e.g. calcium hydroxide, sodium silicate or sodium aluminate).
Patent KR-920001274-B1 (KR)
Inventor: FUKASAWA YOSHIHARU
IPC: C23C14/34
Filed: 1989-05-15
Granted: 1992-02-10
Abstract: 내용 없음.
Patent KR-920002259-B1 (KR)
Title: Rare permanant magnets
Inventor: YANG CHUNG-JIN
IPC: H01F1/04
Filed: 1989-06-08
Granted: 1992-03-20
Abstract: This permanent magnet consists of an alloy of  Fe(a),  Co(b), Nd(c), R(d),  N(e)  and  B(f)  [N  is  Al,Si,Ge,Nb  or  Ga;  R  is Pr,La,Y,Ce,Dy,Gd  or   Tb;   (a)=60-80%;   (b)=0-5%;   (c)=10-20%; (d)=0-10%; (e)=0-5%; (f)=3-10% . The alloy is  molten  and  cooled with the cooling rate 105-106 deg.C/sec, and heated to crystallize at 600-800 deg.C for 1-2 hrs., and pulverized. The alloy powder is sintered at 1000-1200 deg.C for 1-2 hrs.. The additive MB2 [M is Hf,Zr, or V  of 0.5-3.0 wt.% is added to  the  alloy  magnet.  The permanent magnet is added 12-16 atomic  percent  Nd,  6-10  atomic percent B, and the additive which is ZrB2 or VB2.
Patent KR-920001937-B1 (KR)
Inventor: IURA KAZO
IPC: H01B13/02
Filed: 1989-07-05
Granted: 1992-03-07
Abstract: 내용 없음.
Patent KR-920006496-B1 (KR)
Title: Detecting apparatus of circumference defect
Inventor: KIM HYONG-CHAN
IPC: G01B3/18
Filed: 1989-09-16
Granted: 1992-08-07
Abstract: The equipment using change of pneumatic pressure supplied  to the sensor body, comprises a sensor body  (20)  with  inlet  (21), outlet (22), a thermoplastic tube (10) passing  through  the  body (20); pressure regulator (31),  pressure  sensor  (32),  pneumatic pipe (30)  for  supplying  compressed-air;  air  protector  (21') provided at the inlet of the  body  (20);  streamlined  projecting body (22') provided at the outlet of the body (20).
Patent KR-970001504-B1 (KR)
Inventor: JONNER WOLF-DIETER
IPC: B60T8/48
Filed: 1989-09-21
Granted: 1997-02-11
Abstract: 내용 없음.
Patent KR-0134781-B1 (KR)
Inventor: FRAMA TOME
IPC: F16L55/136
Filed: 1989-10-12
Granted: 1998-04-28
Abstract: 없음