baber/WOPTO huggingface dataset:
Patent JO-3593-B1 (JO)
Title: Compounds that expand hematopoietic stem cells
Inventor: YONGQIN WAN
IPC: C07D473/34
Filed: 2009-10-29
Granted: 2020-07-05
Abstract: The present invention relates to compounds and compositions for expanding the number of CD34+ cells for transplantation. The invention further relates to a cell population comprising expanded hematopoietic stem cells (HSCs) and its use in autologous or allogeneic transplantation for the treatment of patients with inherited immunodeficient and autoimmune diseases and diverse hematopoietic disorders to reconstitute the hematopoietic cell lineages and immune system defense
Patent KR-790001872-B1 (KR)
Title: Process for preparing cephalosporins
Inventor: DAVISON M
IPC: C07D501/22
Filed: 1974-07-03
Granted: 1979-12-27
Abstract: 7-α-Aminoacetamidocephalosporin-4-carboxylic acid (I) was prepd. by treating α-amino acid, of which amino group was protected and activated by forming enamine with β-dicarboxyl compds., with 7-aminocephalosporin-4-carboxylic acid ester (II) to give 7-α-aminoacetamidocephalosporin ester, followed by an elimination of the protective group, after having added hydrazin or its derivs. to the ester to prevent recombination of cephalosporin ester(III) with β-dicarboxyl compd., and then deesterfication of III.
Patent KR-810001925-B1 (KR)
Title: Air-fuel ratio regulator for internal combustion engine
Inventor: TAKAMIYA BONNOTSUKE
IPC: F02M23/04
Filed: 1977-05-23
Granted: 1981-11-27
Abstract: The air-fuel ratio regulator for I C engine comprises an air passage(7) leading from the intake passage(9) or the atmosphere upstream of the throttle valve(8) in the carburetor to the intake passage(10) downstream of the throttle valve.  A control valve(11) opens & closes the air passage(7) & differential pressure responsive device actuates the control valve.  The differential pressure responsive device(13) consists of a pair of vacuum chambers(15,16) on either side of a diaphragm(14).  This opens the control valve during the high speed operation or in rapid deceleration where the intake manifold vacuum generated downstream of the throttle valve increases rapidly.
Patent KR-810001672-B1 (KR)
Title: Process for utilization of the sensible heat of in a coking plant
Inventor: WAGENER D
IPC: C10B57/10
Filed: 1978-07-11
Granted: 1981-10-27
Abstract: The sensible heat in a coke oven (10) installation is utilized by passing a heat transport gas in turn through the dry coke quenching plant(17) and through the coal preheating plant (15).  The coupling of the coke quenching plant with the coal preheating plant alone or with the oven battery is effected by hot pretreated fuel gas(P) which reacts in the quenching plant to learn gas or by a fuel gas which remains inert in presence of incandescent coke (E).  This requires neither expensive added equipment like heat exchangers(13), dust collectors and blowers, nor any special treatment for the intertisation.  The sensible heat is therefore recovered more economically than with other known processes.
Patent KR-820001064-B1 (KR)
Title: Device for manufacturing marsch-mellow
Inventor: ABE M
IPC: A21C3/04
Filed: 1979-07-03
Granted: 1982-06-21
Abstract: The marshmallows are made using an apparatus which comprises a tubular extruder (2) for forming a string of marshmallow, and a conveyor belt (1) for transporting the string. Adjacent the conveyor discharge is a roll cutter to cut the powdered string of marshmallow at spaced intervals and to form each cut portion into a ball shape. Each cut portion is transferred to a container and simultaneously pressed. The powder supply mechanism includes an endless belt vertically disposed on a pair of rollers journalled one above the other in a housing. Bucket scoops are mounted on the periphery of the belt.
Patent KR-820001568-B1 (KR)
Title: Gas turbine plant
Inventor: BOERJESGARD PEHR
IPC: F02C7/20
Filed: 1979-09-12
Granted: 1982-09-02
Abstract: A gas turbine(15) drives a compressor(10) & a generator(22).  The air from the compressor is taken to a sperical press. vessel(2) which contains an annular combustion chamber(4) with a fluidized bed(3).  The hot combustion gases are taken to the turbine.  Because of the sizes involved for an installation of 100 MW. or more the combustion chamber is remote from the turbine with a long pipe connection between them.  The gas pipe(17) from the combustion chamber is supported concentrically within an outer pipe(18).  The air from the compressor flows through the annular space(21) between the inner & outer pipes and reduces the heat losses from the hot gas.
Patent KR-830000449-B1 (KR)
Title: 모노니트로-1, 2, 3, 4-테트라히드로-안트라퀴논의 제조방법
Filed: 1980-01-09
Granted: 1983-03-08
Abstract: 내용 없음.
Patent KR-830002811-B1 (KR)
IPC: G01B7/14
Filed: 1980-01-29
Granted: 1983-12-16
Abstract: The strand guide arrangement or roller apron of a continuous casting installation is measured with the aid of a measuring device. The mutual spacing of the roller apron tracks are determined by the measuring device, the obtained measurements results, during the passage of the measuring device through the strand guide arrangement, is initially stored and then recalled after passage of the measuring device has been completed.
Patent KR-810001622-B1 (KR)
Title: Method for treatment of waste sludge
Inventor: JO SHEUNG JE
IPC: B01D17/00
Filed: 1980-03-12
Granted: 1981-10-27
Abstract: Method of separation for oil and pitch from waste sludge which is produced in the process of the refining from crude oil.  The separation of oil and pitch is carried out by stripping the oil and flow the air upward from the internal sludge while heating and agitating at 150≰C-300≰C, after the reactor is neutral treated, and waste sludge is put into the reactor.  The separated oil-containing air is condensated by freezing the oil by passing through cooling water and non-liquefaction gas is incinerated.
Patent KR-830001825-B1 (KR)
Title: 광원장치의 제조방법
IPC: H01K3/00
Filed: 1980-10-21
Granted: 1983-09-12
Abstract: 내용 없음.
Patent KR-890000407-B1 (KR)
Title: Stabilized thermosettable ethylenically unsaturated epoxy ester resin compositions
Inventor: KOENIG REYMOND
IPC: C08F299/00
Filed: 1982-05-15
Granted: 1989-03-16
Abstract: A thermosettable ethylenically unsatd. epoxy ester resin compsn. having an improved storage stability comprises a reaction product of a bisphenol based epoxy resin, a novolac based epoxy resin or their mixt. with an ethylenically unsatd. monocarboxylic acid dissolved in a polymerizable monomer contg. =C=CH2 gp. and an anaerobically effective polymerization inhibitor.  The inhibitor is 4-dichloro-2- nitrophenol, 2-4-dichloro-6-nitrophenol or their mixt..
Patent KR-890002774-B1 (KR)
Title: Hentetracontapeptide crf and analogs
Inventor: VALE WYLIE W JR
IPC: A61K35/30
Filed: 1982-06-07
Granted: 1989-07-28
Abstract: Hentetracontapeptide CRF and its derivatives are used in pharmaceutical treatment for mammals.  I-R1-Pro-Pro-Ile-Ser-R8-Asp - Leu-R11-R12-R13-Leu-Leu-Arg-R17-R18-R19-Glu-R21-R22-Lys-R24-R25-R26- R27-R28-Gln-Gln-Ala-R32-R33-Asn-Arg-R36-Leu-Leu-Asp-R40-R41NH2.  In above structure, Z=H or (C1-7) acyl; R1=ser-Gln-Glu or pGlu-Gly or Gln-Glu; R8, R12, R19, R24 and R40=Leu, Ile, Ala, Gly, Val, Nle, Phe and Gln; R11=Thr or Ser; R13=His, Tyr or glu; R17=Glu or Lys; R18=Val or Met; R21=Met, Ile, Ala, Leu or gln; R22=Thr or Glu; R25=Asp or glu; R26=Gln or Lys; R29=Leu, Ile, Ala or Glu; R28=Ala or Lys; R32=His, Tyr or Ala; R33=Ser, Asn or Ala; R36=Lys or Leu; R41=Ala, Ile, Gly, Val, sLeu, Nle, Phe, Gln or desR41.
Patent KR-910001937-B1 (KR)
Inventor: TOKIETA TAKKEDI
IPC: C09B67/24
Filed: 1983-02-05
Granted: 1991-03-30
Abstract: 내용 없음.
Patent KR-910005195-B1 (KR)
Title: Screw extruders
Inventor: MEYER PAUL
IPC: B29C48/525
Filed: 1983-11-26
Granted: 1991-07-23
Abstract: An extrusion apparatus having a barrel (3) and a rotatable threaded screw (1) coaxially positioned therein is disclosed. The apparatus includes an upstream inlet section having an opening (13) therein for receiving material to be processed by the apparatus, a compression section (2) downstream of the inlet section, and a mixing or plasticizing section (7/8) downstream of the compression section. The interior surface of the barrel is provided with an undercut (12) therein which intercommunicates the feed opening with the compression section and has a portion thereof which extends downstream in the compression section about the interior surface of the barrel with a continuously decreasing cross-sectional area. The undercut may be formed in a cylindrical insert (9), carried within the barrel and, in an alternate embodiment, a second undercut cylindrical insert positioned about the first insert and rotatable relative thereto may be employed to vary the cross-sectional area of the undercut.
Patent KR-910002516-B1 (KR)
Inventor: ROHRER RUDOLF
IPC: C09B62/443
Filed: 1984-04-20
Granted: 1991-04-23
Abstract: 내용 없음.
Patent KR-920009658-B1 (KR)
Inventor: KOBYASHI HARUHIKO
IPC: F02D41/14
Filed: 1985-01-19
Granted: 1992-10-22
Abstract: 내용 없음.
Patent KR-920000722-B1 (KR)
Title: Polyfunctional phenolic reaction product a process for its preparation
Inventor: KLEIN DIETER H
IPC: C08G14/10
Filed: 1985-01-30
Granted: 1992-01-21
Abstract: A polyfunctional reaction product having functional phenolic OH groups is made available by reacting a phenol and an alkoxylated amine-aldehyde condensation product in the presence of a solvent and of an acid catalyst. This method makes it possible to prepare a polyfunctional phenolic reaction product which is soluble in organic solvents at a low ratio of phenolic OH groups to alkoxy groups without gelling. The reaction product is particularly useful as a curing agent for epoxy resins.
Patent KR-900001082-B1 (KR)
Title: A preparation process for indazoles
Inventor: SHIN SUNG-BO
IPC: C07D231/56
Filed: 1986-02-25
Granted: 1990-02-26
Abstract: Indazoles of formula (I) are prepd. by reacting 0-toludine derivs. of formula (II) or 0-methyl-acetanylide derivs. of formula with 1-4 eq. amts. of N2O4(dissolved in acetonitrile or CCl4) at 40 to 10 deg.C. In the formulas, X=Cl, Br, I, acetyl, C1-12 (halo) alkyl or hydroxy; n=1-4.  (I) are useful as a photographic developer.
Patent KR-940006851-B1 (KR)
Inventor: ALEXANDER JERRY L
IPC: G11B5/73
Filed: 1986-03-11
Granted: 1994-07-28
Abstract: 내용 없음.
Patent KR-940000016-B1 (KR)
Inventor: ARCELLA VINCENZO
IPC: C08K3/20
Filed: 1986-07-08
Granted: 1994-01-05
Abstract: 내용 없음.
Patent KR-900002480-B1 (KR)
Inventor: SANMIYA SEIETSU
IPC: B23K13/08
Filed: 1985-12-06
Granted: 1990-04-16
Abstract: 내용 없음.
Patent KR-900007755-B1 (KR)
Title: Color cathode ray tube
Inventor: HOSOKOSHI KAKUICHIRO
IPC: H01J29/86
Filed: 1987-01-26
Granted: 1990-10-19
Abstract: The external surface of the face of a colour cathode ray tube has its curvature determined by a formula which gives the distance parallel to the tube axis between a plane tangential to the centre of the tube face and any selected point on the surface. The formula uses the lengths of selected radii from the centre of the tube and a pair of constants independent of the radius. This gives an even curvature without inflection points. The inside surface has a similar shape to that of the outside surface, and also the shape of the shadow mask which is supported spaced from the inside surface, matches this shape.
Patent KR-900006292-B1 (KR)
Title: Ear microphone and speaker for transeiver using ring in the ears
Inventor: YUN WON-YOUNG
IPC: H04B1/38
Filed: 1987-04-18
Granted: 1990-08-27
Abstract: A signal passway controller (T) switching the passway by transmission and reception signals is connected to an ear microphone/speaker (1) combined with the microphone and speaker functions. When transmitting the voice signal, the voice sounded at mounthis transfered to the eardrum through the auditory tube. The oscillated signal at the eardrum is input to the microphone/ speaker (1) to amplify and transmit. When receiving the signal, the microphone/speaker reproduces the sound so that the circuit makes both hands free when communicating by wireless apparatus.
Patent KR-900003306-B1 (KR)
Title: Manufacturing process of suttle for loom and the shuttle
Inventor: SONG JAE-DONG
IPC: D03J5/00
Filed: 1987-05-21
Granted: 1990-05-14
Abstract: The shuttle for loom consists of an injection molded outer shuttle being bonded on the surface of an inner shuttle with concaves and operings. The shuttle is made of injection moulded outer shuttle (4) with hot mixture solution of polyamide resin, glass fiber powder, carbon fiber powder, antistatic agents, and injection molded inner shuttle (1) formed having concaves (2), operings (3) formed with hot mixture solution of the lime, antistatic agents, and waste nylon contained glass fiber.
Patent KR-920000718-B1 (KR)
Inventor: TAKAYANAKI HIROSHI
IPC: A61B17/00
Filed: 1987-06-02
Granted: 1992-01-21
Abstract: 내용 없음.
Patent KR-950004003-B1 (KR)
Inventor: ANTHONY VIVIENNE M
IPC: C07D333/24
Filed: 1987-07-01
Granted: 1995-04-22
Abstract: 내용없음
Patent KR-920000166-B1 (KR)
Title: Method and apparatus for self-adjustable clock recovery of digital data transmission system
Inventor: PARK IL-KEUN
IPC: H04L7/033
Filed: 1987-10-17
Granted: 1992-01-09
Abstract: The circuit detects the phase of  clock  signal  included  in received data exactly to improve Jitter characteristics and has  a function to hold the phase  of  data  transition  point  when  the logical value of input data is not changed. The circuit includes a bi-directional one shot (14) for detecting the zero point  passing of input data, a uni-directional one shot (15) triggered  by  zero point passing signal to generate frequency dividing start  signal, a frequency divider (17) initialized by the start  signal  of  the unidirectional one shot (15) to count the  clock  signal  so  that input data clock signal is recovered, an adder (18) for generating on-off control signal to eliminate the impulse noise  included  in the output signal of the frequency divider (17), and a switch (19) for applying output signal of the divider  (17)  to  phase  locked loop (PLL).
Patent KR-900002451-B1 (KR)
Title: Wave-guide/micro strip line transition apparatus
Inventor: PARK HYUN-CHUL
IPC: H01P5/107
Filed: 1987-12-11
Granted: 1990-04-14
Abstract: The converter having a function for adjusting the impedance matching between wave guide and micro-strip line includes a rectangular wave guide (10) with width and height of a and b1, an exponential taper ridge (30) with exponentially growing height, a tuning screw (40) adjusting equivalent capacitance caused by a gap (b2) between ceiling of the wave guide (10b) and the top of the ridge (30), a probe (50) enclosed by dielectric material and attached to the exponential taper ridge (30) through a hole in one end of the wave guide.
Patent KR-960015037-B1 (KR)
Title: 17beta-(cyclopropylamino)androst-5-en-3beta-ol and related compounds useful as c17-20 lyase inhibitor
Inventor: ANGELASTRO MICHAEL R
IPC: C07J41/00
Filed: 1988-04-21
Granted: 1996-10-24
Abstract: This invention is directed to 17 beta -(cyclopropylamino)androst-5-en-3 beta -ol and related compounds and also to a method for using such compounds in the treatment of androgen-dependent disorders. The compounds are prepared by the hydride reduction of an appropriate steroidal imine or enamine.
Patent KR-970000704-B1 (KR)
Title: Manufacturing method of capacitor insulating film in semiconductor device
Inventor: OH KI-YOUNG
IPC: H01L21/318
Filed: 1988-04-28
Granted: 1997-01-18
Abstract: A fabrication method of dielectric layer of O(oxide)-N(nitride) structure in interpoly capacitor through simple process is disclosed. The method comprises the steps of: (a) forming an oxide layer(O) by RTP(rapid thermal process) being a polysilicon stack electrode maintained firstly in N2 gas atmosphere at 800deg.C for 20 seconds and then in mixing gas atmosphere of O2 and HCl at 1100deg.C; and (b) forming a nitride layer(N) by RTP being the oxide layer maintained for 10 seconds in N2 gas at 800deg.C and then maintained for 20 seconds in NH3 gas at 1100deg.C. The O-N dielectric films are directly formed on polysilicon by using RTP, thereby easily controlling the thickness of the dielectric films and decreasing the process time.
Patent KR-900008755-B1 (KR)
Inventor: CHOI DU-HWAN
IPC: H03F3/45
Filed: 1988-07-29
Granted: 1990-11-29
Abstract: 내용 없음.
Patent KR-910006376-B1 (KR)
Title: Automatic contrast control circuit
Inventor: CHOI HAE-YONG
IPC: H04N5/243
Filed: 1988-08-06
Granted: 1991-08-21
Abstract: The control circuit for  obtaining  a  sharp  contrast  ratio includes a  pedestal  level  sample  and  hold  circuit  (20)  for sampling and holding a video signal clamped to a pedestal level by a clamping pulse; a circuit (15) for detectingh a signal  below  a reference  level  to  remove  unnecessary   blanking   signal   by blanking-out such that only the signal below the  reference  level is determined; a lowest value detection circuit (15) for detecting the lowest value of a image signal mean  value  detection  circuit (25) and of the clamped video signal; a  comparator  circuit  (10) for comparing the lowest value from the  detector  (15)  with  the image signal mean value from the detector (25) and pedestal  level signal; and a variable gin amplifier (30).
Patent KR-960008273-B1 (KR)
Inventor: HOWLETT DAVID J
IPC: B65D83/14
Filed: 1988-09-03
Granted: 1996-06-21
Abstract: 내용 없음.
Patent KR-930010573-B1 (KR)
Inventor: KADAFUCHI TADASHI
IPC: C10N40/20
Filed: 1988-11-07
Granted: 1993-10-28
Abstract: 내용 없음.
Patent KR-920002244-B1 (KR)
Inventor: HUKKUTA YUJUROO
IPC: G03G5/08
Filed: 1989-03-25
Granted: 1992-03-20
Abstract: 내용 없음.
Patent KR-960015382-B1 (KR)
Title: Water urinal
Inventor: TASHIRO YUKIO
IPC: E03D13/00
Filed: 1989-06-24
Granted: 1996-11-11
Abstract: Disclosed is a water urinal (A1) in which a receiving space (2) is integrally formed in an upper portion of a bowl portion (1) of a urinal body (a), and a valve (3) for supplying flushing water to the bowl portion (1) is received in the receiving space (2).
Patent KR-920007367-B1 (KR)
Inventor: TANIDO JUNICHI
IPC: B66B3/00
Filed: 1989-07-04
Granted: 1992-08-31
Abstract: 내용 없음.
Patent KR-930002605-B1 (KR)
Inventor: TAKANASHI ITSUO
IPC: H04N5/369
Filed: 1989-07-21
Granted: 1993-04-03
Abstract: 내용 없음.
Patent KR-0130386-B1 (KR)
Title: Patterning method of photoresist
Inventor: HU HOON
IPC: H01L21/302
Filed: 1989-08-31
Granted: 1998-04-06
Abstract: A method for improving adhesive force between a photoresist and a substrate is disclosed. The method comprises the steps of: coating a photoresist(PR)(3) on an wafer(1) having an oxide layer(2); soft-baking the resultant structure in order to remove a solvent in the PR(3); hard-baking the PR(3) to remove the residue solvent using reticle(4); and exposing the entire surface of the PR(3) by ultraviolet ray without using the reticle(4), thereby preventing an excitation of the photoresist.
Patent KR-920001295-B1 (KR)
Title: Poly ethylene foam laminates
Inventor: LEE EUI-KOO
IPC: B32B27/04
Filed: 1989-10-20
Granted: 1992-02-10
Abstract: Laminates are produced with a matrix for  the  building  wall and polyethylene foams. The composition of a  laminating  adhesive comprises ethylene-vinylacetate copolymer (EV/A resin) 20-35 wt.%, chloroprene rubber latex 2-10 wt.%, rosin  5-20  wt.%  and  curing agent  having  structural  formula  (I)  of  dien-olefin   initial copolymer 5-10 wt.%. The matrix is one or  two  of  slate,  brick, pannel, veneer board, steel plate, glass and  plastic  plate.  The laminates has a good dhesiveness, and is used as  a  semipermanent insulating material.
Patent KR-0148679-B1 (KR)
Inventor: CHEN IH-CHIN
IPC: H01L27/108
Filed: 1989-12-05
Granted: 1998-11-02
Abstract: 내용 없음.
Patent KR-930002745-B1 (KR)
Inventor: SUZUKI MASATO
IPC: G06F9/38
Filed: 1989-12-05
Granted: 1993-04-09
Abstract: 내용 없음.
Patent KR-960009768-B1 (KR)
Inventor: NAGATA YASUHIRO
IPC: G01N27/416
Filed: 1987-07-28
Granted: 1996-07-24
Abstract: 요약없음.
Patent KR-930006385-B1 (KR)
Inventor: MASHIURA KUNIHISA
IPC: G06Q20/40
Filed: 1990-04-20
Granted: 1993-07-14
Abstract: 내용 없음.
Patent KR-0165888-B1 (KR)
Inventor: ARNO ZHEGVARI
IPC: B02C17/16
Filed: 1990-04-30
Granted: 1998-12-15
Abstract: 분쇄 소자로 고형분 재료를 분쇄하기 위한 연속 건식 그라인더는 분쇄 소자(M)를 포함하고 상부 공급 슈트(18)를 통해 분쇄할 재료를 받아들이며 방사상으로 부착된 스크린(51)을 통하여 분쇄된 재료를 방사하는 분쇄 용기(20)와, 밸브와 방사 슈트(54)를 포함한다. 모터 구동 교반기 조립체는 용기내에 배치되고 방사상으로 돌출된 교반 아암(42) 및 회전 교반기축(41)에 부착되는 전환 디스크(44)를 포함한다. 교반 아암은 L자형이고 용기의 상부 및 바닥(26)을 향해 교대로 돌출하는 짧은 레그(42b)를 갖는다.
Patent KR-930006626-B1 (KR)
Title: High speed low address buffer
Inventor: KIM HONG-JU
IPC: G11C11/408
Filed: 1990-08-08
Granted: 1993-07-21
Abstract: The row address buffer improves a signal generation time  and a delay time. The row address input signal (Pras) from  the  latch type sense amplifier is applied to the gates of N channel MOS  TRs (MN35)(MN36), and CMOS latch type sense amp.  consisting  of  NMOS TRs (MN32)(MN34) and PMOS TRs (MP31)(MP33)  is  connected  between the source and  the  drain  of  previous  NMOS  TRs  (MN35)(MN36). Similarly, (Pras)  is also  applied  to  the  gate  of  NMOS  TRs (MN42)(MN41), and CMOS latch type sense Amp. consisting  PMOS  TRs (MP37)(MP38).
Patent KR-950004924-B1 (KR)
Inventor: PAGAC WILLIAM T
IPC: B25B13/02
Filed: 1990-10-15
Granted: 1995-05-16
Abstract: 내용 없음.
Patent KR-930001930-B1 (KR)
Title: Power circuit
Inventor: HONG SANG-PYO
IPC: H02H3/00
Filed: 1990-11-12
Granted: 1993-03-20
Abstract: The surge protection circuit for using a transmission gate to prevent the breakdown of a  gate  oxide  comprises  connecting  an input terminal (PD) to a power source (Vcc)  and  a  ground  (GND) through a resistor (R1), and a diode (D1)  and  a  reverse  biased diode (D2)  respectively,  connecting  a  node  (a)  to  a  ground capacitor (C1) and to an output terminal (Vo) through an  inverter (1), connecting the capacitor (C1) to an input  node  (b)  of  the inverter (1) through a transmission gate (11) including an NMOS TR (N12) and a PMOS TR (P12) and  connecting  each  gate  of  the  TR (N12,P12) to the power source (Vcc) and  ground  (GND)  through  a PMOS TR (P11) and an NMOS TR (N11).
Patent KR-940005379-B1 (KR)
Inventor: NAKAGAWARA CHIKASHI
IPC: H03H11/04
Filed: 1990-12-21
Granted: 1994-06-17
Abstract: 내용 없음.
Patent KR-940001845-B1 (KR)
Title: Dental laser assembly
Inventor: VASSILIADIS ARTHUR
IPC: H01S3/16
Filed: 1989-08-25
Granted: 1994-03-09
Abstract: A dental laser assembly is disclosed for use in eradicating carious lesions in teeth, the treatment of sensitive teeth, as well as the removal of soft tissue. The laser assembly includes a housing having a cavity in which a pulsed laser is contained. The laser is excited so that the laser emits a laser beam along a predetermined axis that is in line with a fiber optic delivery system and at a pulse rate of one to 10,000 pulses per second and an average power variable from zero to 50 watts. A handpiece is dimensioned to be inserted into a human mouth while an optical fiber optically connects the laser output to the handpiece. The laser assembly also includes a continuous output aiming laser which, upon activation, provides a continuous laser aiming beam coaxial to the treatment beam. Both beams are then introduced into a fiber optic delivery system.
Patent KR-930006845-B1 (KR)
Title: Shadow mask frame assembly
Inventor: KIM HU-DUK
IPC: H01J29/07
Filed: 1991-03-14
Granted: 1993-07-24
Abstract: The assembly is  for  having  uniform  resolution  on  entire fluorescent surface of a CRT by compensating the domming pheomenon of shadowmask derived from the thermal  electrons  emitted  by  an electron gun. It includes a frame (12),  a  shadow  mask  (11),  a high-temperature expanding section (12a) made of stainless  steel, a low-temperature  expanding  section  (12b)  made  of  invar  and located below the high  temperature  expanding  section  (12a)  to sustain the expanding section (12a).