baber/WOPTO huggingface dataset:
Patent KR-850000571-B1 (KR)
Title: Process for preparing benzoxazolone derivatives
Inventor: OYAMA HIROSHI
IPC: C07D263/58
Filed: 1981-01-30
Granted: 1985-04-29
Abstract: Benzoxazolone derivatives(I), used as antibiotic agents, are prepared from compound(VI) by reaction with compound(VII) in the presence of an acid coupling agent; where R = H, C1-C4  alkyl, C1-C4  alkyl carbonyl, chloro(C1-C4) alkyl carbonyl, C1-C4 alkyl oxycarbonyl, mono- or di-(C1-C4) alkyl amino carbonyl, C1-C4 alkyl sulfonyl, or phenyl sulfonyl; and D = halogen atom. Organic solvents used in the reaction are hydrocarbons, ethers, esters, ketones, acid anides, alcohols, or dimethyl sulfoxides.
Patent KR-890000785-B1 (KR)
Title: Color correction apparatus for a duplicate camera
Inventor: ISONO KOICHI
IPC: G03G15/01
Filed: 1981-09-15
Granted: 1989-04-06
Abstract: Three colour correction filters of three primary colours are provided and are selectively interposed into the exposure light path.  An arithmetic unit is connected to a colour correction value setup which sets up colour correction values of colours to be removed from an original picture and it receives these density values as negative values and subtracts the minimum value from each of the other density values to output a colour correction signal.  Then, a control unit connected to the arithmetic unit controls the colour correction filters.  This is so that they may be interposed into and on top the exposure light path for a time dependent upon the colour correction signal.
Patent KR-850001501-B1 (KR)
Title: Seat back reclining mechanism
Inventor: DELTA KOGYO CO LTD
IPC: B60N2/90
Filed: 1981-09-19
Granted: 1985-10-11
Abstract: The seat back reclining mechanism has a coarse adjustment device and a fine adjustment device. The fine adjustment device includes an eccentric cam, which may be mounted about a pivot pin to connect a stationary plate secured to the seat bottom with a movable plate secured to the seat back. In the fine adjustment device, there is provided a locking unit that prevents the eccentric cam from rotating. A fine adjustment lever functions when actuated to, at first, unlock the eccentric cam and then to make it rotate to perform the fine adjustment.
Patent KR-880000834-B1 (KR)
Title: Controlling combustion
Inventor: MURIGI RYOJI
IPC: F23N5/00
Filed: 1982-04-20
Granted: 1988-05-14
Abstract: A main controlling unit (37) receives the signal indicating the steam pressure of a boiler from a pressure gage (31) and sets the desired value of the stream pressure of the boiler and the PID (proportional- plus-integral-plus-derivative) constant.  A limiter (43) calculates the amount of variation of a manipulated variable ΔT12=T1-2, wherein T1 is the manipulated variable of the boiler at the time and T2 is the predetermined manipulated variable of the boiler.  When the amount of variation ΔT12 lies within the allowable value of variation ΔT, T1 is adopted and when ΔT12 lines out of ΔT, T2 ± ΔT is adopt.
Patent KR-900008731-B1 (KR)
Inventor: MICHEL SERGE MAXIME LEFEBVRE
IPC: C13B20/16
Filed: 1983-02-26
Granted: 1990-11-29
Abstract: 내용 없음.
Patent KR-850000551-B1 (KR)
Title: Wrist device of robot
Inventor: TERABUZI SNEO
IPC: B25J9/04
Filed: 1983-03-24
Granted: 1985-04-26
Abstract: This robot joint appts. is the horizontal joint type. A housing(18) consists of a ball bearing(19), and is fixed to the first arm(3) by a bolt(20). Input shaft(21) is supported by the ball bearing(19) and a timing pulley(23) is fixed with fixing element(24) in the other end of the input shaft(21). A bearing mechanism consists of cone roller bearing, angular ball bearing and cross roller bearing.
Patent KR-880000937-B1 (KR)
Title: Mounting device of components
Inventor: MORI TSUYOSHI
IPC: B23P21/00
Filed: 1983-07-14
Granted: 1988-05-31
Abstract: Replaceable hoppers are mounted on the upper part of the device.  The column type chip components in which the electrodes (Cb) are formed on the both sides of an insulation are placed in the hoppers.  The plastic pipes are provided to link the hoppers on the mount with the positioning plate.  If a chip component is supplied, the chip component is guided to the plastic pipe and is dropped into the holes of the upper plate and lower plates (11, 10).
Patent KR-890002335-B1 (KR)
Title: Oil-immersed condenser
Inventor: WHADA HYDOEKAS
IPC: H01G4/22
Filed: 1984-03-13
Granted: 1989-06-30
Abstract: The oil-immersed condenser is obtd. by impregnating elemental device of the condenser (composed of at least one dielectric substance of plastic film or insulating paper and a pair of electrodes) with insulating oil contg. organometallic compd. (having both hydrolyzable gp. and org. functional gp., i.e. org. silane compd., org. titanate compd.).
Patent KR-890002469-B1 (KR)
Title: Memory paging system in a micro computer
Inventor: KUMMER DAVID A
IPC: G06F12/06
Filed: 1984-07-10
Granted: 1989-07-10
Abstract: The appt. has a main memory accessed by both a CPU and a CRT controller, and a page register which receives bits defining both CPU and CRT pages from the CPU.  The CPU page bits are conbined with lower order address bits from the CPU for CPU access cycles. The CRT page bits are combined with lower order address bits from CRT controller for CRT access cycles.  Both the CPU and CRT controller can access any of the pages in the memory.  For compatibility with higher level systems, the CPU may provide addresses in outside of the range of addresses for the memory.
Patent KR-840001920-B1 (KR)
Title: Process for the preparation of substituted phenoxy-aminopropanol derivatives
Inventor: MACHIN PETER JAMES
IPC: A61P9/00
Filed: 1984-07-23
Granted: 1984-10-25
Abstract: Substituted phenoxyaminopropanol derivs. of formula I[R=3-4 branched alkyl; R1=H, halogen, lower alkyl; R2=R3=H, halogen, lower alkyl, alkoxy, or alkylthio  and its acid addn. salts were prepd. by reacting alkali metal phenol derivs. of formula II and formula III[Z = lower alkysulfonyloxy or arylsulfonyloxy  at 60≰C. The title compds. are used as treatment agents for hypertension and heart disease.
Patent KR-870000180-B1 (KR)
Title: Process for the preparation of board inlaid with mother of pearl
Inventor: LEE CHI-WON
IPC: B44C3/02
Filed: 1984-08-11
Granted: 1987-02-14
Abstract: the process for the preparation of board inlaid with mother-of pearl is as follows; The synthetic resins (2) are poured into the cement- mortar layer (1) and particles of mother-of pearl are spread in a certain shape or pattern and pressed with a roller before the synthetic resins are hardened. After this process, the transparent synthetic resins are poured into the above mother-of pearl layer(6) and the synthetic resins layer (3) is formed. Particles of mother-of pearl (5) are inlaid in a desired shape on it, and pressed with a roller. The synthetic resins layer (4) is formed and the board inlaid with mother-of pearl is made.
Patent KR-890004571-B1 (KR)
Title: Device for plasma treatment
Inventor: TOSIMASA KISA
IPC: H01L21/3065
Filed: 1984-09-25
Granted: 1989-11-15
Abstract: The apparatus for performing the etching and stripping process simultaneously blows the etching gas to the bottom side of the wafer to float and etch the wafer.  The etching gas is ionised by the heater.  The gas is flowed from a bottom plate of the reaction chamber, of which plate has a number of holes pierced with inclined direction to float and move the wafer to certain direction as well as etching it.  The plasma is made by microwave generated by a microwave generator.
Patent KR-920010391-B1 (KR)
Title: Process for preparing contrast agents for nmr imaging
Inventor: GAMBLE RONALD C
IPC: A61K/
Filed: 1985-04-27
Granted: 1992-11-27
Abstract: An agent for contrast enhancement in nuclear magnetic resonance imaging comprises micellular particles such as phospholipid vesicles associated with or enclosing a paramagnetic material. The particles may be formulated with an agent, such as cholesterol, to promote vesicle stability and water exchange across the vesicle bilayer. The vesicles may or may not have antibodies or other cell recognition targeting agents attached to the surface to provide specific targeting. The vesicles provide enhanced target specificity, reduced burden of toxic contrast material and amplified contrast enhancement.
Patent KR-890004731-B1 (KR)
Title: Washing machine
Inventor: YAMAGIHARA MASANOBU
IPC: D06F39/10
Filed: 1985-04-29
Granted: 1989-11-25
Abstract: A washing machine has an outer casing in which a washing tube is arranged.  A water supplying member mounted on the outer casing is connected with a water source.  Water passes a filter to remove impurities such as iron oxide powder from the water supplied from the water source.  When the water is at a predetermined level, an outflow port regulate the flow of water.  The washing machine includes the water supplying member, the water receiving member and the supplementary water receiving member which can be detached or attached to the outflow port.
Patent KR-930001409-B1 (KR)
Inventor: TOMINAGA MICHIAKI
IPC: A61K31/495
Filed: 1985-12-17
Granted: 1993-02-27
Abstract: 내용 없음.
Patent KR-900006899-B1 (KR)
Title: Manufacture of anthraquinone dispersion
Inventor: DEVIC MICHEL
IPC: D21C3/02
Filed: 1985-12-19
Granted: 1990-09-24
Abstract: A prepn. of anthraquinone (I) comprises cyclizing o-benzoylbenzoic acid (II) at 150-180 deg.C and 5-40 mbar in presence of 0.5-2 wt.% of at least 95 wt.% H2SO4 per (II). The resulting mixt. is directly adjusted to pH at least 7 by adding a 10-40 wt.% aq. soln. of NaOH or KOH at 100 deg.C. The (I) is dispersed in the reaction suspension, and opt. dry prod. prepd. from this dispersion. The (I) disperison is useful as an additive for alkaline wood cooking liquors.
Patent KR-900000719-B1 (KR)
Title: Controller of liquid crystal elements
Inventor: KIM YONG-JE
IPC: G02F1/23
Filed: 1986-12-02
Granted: 1990-02-07
Abstract: a signal checker (5) for interpreting the instruction signal from a microprocessor utilizing a decoder (2) and for transmitting the interpreted signal to a character pitch register (3), a mode control register (4), and cursor shaper (26) through a data tranceiver (DT) for determining the shape of the cursor; a character processor (20) for finding the position of the character to be displayed and for displaying the text character; and a cursor generator (25) for determining the shape of the cursor.
Patent KR-900002004-B1 (KR)
Title: The optical pick-up apparatus
Inventor: SONG TAE-SUN
IPC: G11B17/14
Filed: 1986-12-26
Granted: 1990-03-31
Abstract: The optical pickup (20) equips a disc side selector (23) composing of an electro-optic cell (24) whose polarization direction is rotated as much as the electromagnetic field in front of a diffraction plate (22), and a polarization plate (25) passing through the light traveling to certain direction but reflecting the light traveling to the vertical direction to the said light. A polarization plate (26) polarises the laser light traveling a passway (28) as much as X/4 and the plate (27) polarises the light travelling a passway (29) as much as X/4 so that one side of the optical disc is selected and reproduced by the outer electromagnetic field.
Patent KR-910008792-B1 (KR)
Inventor: KOLSEKI JOSEPH V
IPC: C08L33/04
Filed: 1987-02-20
Granted: 1991-10-21
Abstract: 내용 없음.
Patent KR-900004687-B1 (KR)
Title: Method for producing low sheet gloss coated paper
Inventor: LEE DO I
IPC: D21H19/10
Filed: 1987-05-02
Granted: 1990-07-02
Abstract: Synthetic polymer latex compsn. for paper coating comprises the monomer mixture consisting of vinylic acid monomer and the cpd. selected from styrene/butadiee, acrylate or vinyl acetate (where the vinylic acid monomer is at least 6 pts. w.r.t. 100 pts. of total monomer). Pref. the latex compsn. is above pH 8, and contains heterogeneous compsn.. Low sheet gloss is obtd. without the use of large pigment particles and/or specialised supercalendering techniques.
Patent KR-900004944-B1 (KR)
Title: Thermoplastic resin composition for shielding electronic wave
Inventor: LEE SANG-JIN
IPC: C08L67/02
Filed: 1987-07-16
Granted: 1990-07-12
Abstract: A thermoplastic resin compsn. for shielding electromagnetic wave comprises: 50-90 wt.% of thermoplasfic resin; 50-10 wt.% of metal or electroconductive filler coated with metal on its surface; and 0.05-5 wt.% complex of perchlorate salt of polyethylene oxide and alkali earth metal w.r.t. the filler. Pref. the thermoplastic resin is polyester, or polycarbonate, polyesterpolycarbonate copolymer, polyamide, polyamideinide, polyphenyleneoxide, polyphenyleneether, polystyrene or acrylonitrile-butadiene-styrene copolymer. Pref. the M. wt. of polyethylene oxide is 100-10000.
Patent KR-900008727-B1 (KR)
Inventor: HALL MARK J
IPC: C08K3/26
Filed: 1987-08-20
Granted: 1990-11-27
Abstract: 내용 없음.
Patent KR-920002892-B1 (KR)
Title: Brewing regenerative heater
Inventor: HAGA KO
IPC: A23L11/20
Filed: 1987-08-21
Granted: 1992-04-06
Abstract: A heating element is wound around a bobbin (2) that  is  made of  a material  having  a  heat  storing  property.   The   outer circumferential surface of the above structure  is  covered  by  a heat storing pipe (5) which is made of the same material  as  that of the heat bobbin. The opposite ends of the heat storing pipe are attached with partition walls, and a stay bolt  (9)  pass  through holes formed on the partition walls. A heat storing medium (19) is provided with spacers (6) at certain intervals in the direction of the length, while the medium (19) is closed at  one  end  thereof, and is open at the other end thereof, with  a  flange  (11)  being attached thereon. A corrosion resistant cylinder (7)  accommodates a heat resistant stopper (10) inside thereof.
Patent KR-950008309-B1 (KR)
Inventor: HISAKI MASAKATSU
IPC: G11B5/596
Filed: 1987-10-19
Granted: 1995-07-27
Abstract: 내용 없음.
Patent KR-890004894-B1 (KR)
Title: New method for making kimchi
Inventor: BAIK WOON-HWA
IPC: A23B7/10
Filed: 1987-10-24
Granted: 1989-11-30
Abstract: The new method for preparing kimchi with controlling acidification is presented.  Thus sliced cabbage and additional materials are soaked in the solution containing 0.1-0.2% of sodium hypochlorite for 20-40 minutes.  The above materials are washed and mixed with seasonings and 2ml of starter culture broth containing leuconostoc mesenteroides.  The above mixture is fermented at 25≰C.  The acidification period is polonged two-three times.
Patent KR-960000795-B1 (KR)
Inventor: HATCH RONALD R
IPC: H04B7/185
Filed: 1987-04-30
Granted: 1996-01-12
Abstract: 내용 없음.
Patent KR-950013993-B1 (KR)
Inventor: LU SHIH-LAI
IPC: B05D7/24
Filed: 1988-01-15
Granted: 1995-11-20
Abstract: 내용 없음.
Patent KR-900005973-B1 (KR)
Title: Superconduction composition
Inventor: CHANG MIN-JA
IPC: H01B12/00
Filed: 1988-02-12
Granted: 1990-08-18
Abstract: A superconductor compound of YBa2Cu3ClxOy [0.4±0.02 <x< 0.8±0.02  is prepd. by mixing Y2O3, BaCO3 and CuO powder with CuCl2, and calcining and sintering the mixture at 650-800 deg. C. The YBa2Cu3ClxOy composition represents a superconductivity at 130 deg. K when x is 0.6±0.02.
Patent KR-930001180-B1 (KR)
Title: Electron gun cathode structure of tv picture tube
Inventor: LEE KYONG-SANG
IPC: H01J29/48
Filed: 1988-03-02
Granted: 1993-02-20
Abstract: The cathode assembly for an electron gun emitting the thermal electron provides the stability  of  initial  cathode  current  by adding the cathode support. The cathode and  the  cathode  support (30) are expand by heat of heater (6),  this  leads  space  change between the cathode and the first electrode (7). At this time,  an innerward ring section of cathode support is welded to the cathode cap and the sleeve with narrow range, this decreases  the  initial heat expansion by heat transfering. This cathode has advantage  of cost reduction owing to the simplicity of assembly.
Patent KR-900005943-B1 (KR)
Title: Method for producing fruit chips
Inventor: MATSUMURA YASUSHI
IPC: A23L19/18
Filed: 1988-03-22
Granted: 1990-08-18
Abstract: Fruit chips are produced by (a) cutting bananas into small pieces; (b) adjusting to 5-20 deg.C uniform temp; (c) expanding pieces by quickly reducing from normal pressure to 150-500 Pa within 1 min; and (d) heating under reduced pressure lower than that in (c) at 60-90 deg.C. Time between (a) to pressure redn. at end of (c) is 20 mins. or less. Banana pieces cut have thickness 3-5 mm. Expansion comprises quickly reducing pressure and maintaining pieces thus for 5-15 mins. Inherent task of fresh banana is retained, having excellent appearance without quality impairment due to drying and without browning.
Patent KR-900003227-B1 (KR)
Title: Heating device in duct burner
Inventor: CHONG JAE-KYU
IPC: F23J15/00
Filed: 1988-03-25
Granted: 1990-05-11
Abstract: A number of gas burners (2) and oil burners (3) are arranged in a duct. A gas burner has gas supply tubes (4), and a oil burner has air supply tubes (5). One of the gas supply tubes of the gas burner is connected to a gas supply pipe (6), a ignition gas supply pipe (7) and a air supply pipe (8) from the outside.  Oil supply tubes (9) and atomizing steam tube (10) run parallel with the air supply tubes of the oil burner. The bumors complete conbustion of unournt buel contained in exhaust gas in the duet to supply more heat.
Patent KR-900005969-B1 (KR)
Title: Concrete product and method of production thereof
Inventor: LEE IL-HEUI
IPC: B28B11/08
Filed: 1988-04-07
Granted: 1990-08-18
Abstract: A washed concrete product is manufactured by the stages of painting a hardening redardant or attaching a paper coated with a hardening retardant on the inner surface of the mould, pouring cement, pebbles or aggregate, sand and water in the mould, hardening with a vibrator, curing for a given period of time, demoulding to take out the hard- finished goods, and washing the product with the spouting water to make it look like the natural surface of pebble or aggregate. The product has a beautiful external appearance.
Patent KR-900006235-B1 (KR)
Title: 4'-deshydroxy epipodophykkitixub glucosides synthesio and use
Inventor: SAULNIER MARK G
IPC: C07H17/04
Filed: 1988-08-19
Granted: 1990-08-27
Abstract: Cpds. of formula (I), having antitumor activity, are prepd.. In (I), R2= H; R1= C1-10 alkyl, C2-10 alkenyl, C3-7 cycloalkyl, furyl, thienyl, pyridyl, pyrrolyl, C6-10 aryl or C7-4 aralkyl, the aryl and aralkyl rings opt. bearing one or more substits. selected from halo, C1-4 alkyl, NO2 OH, C1-6 alkoxy, C1-4 alkanoyloxy, CN, amino, C1-4 alkylamino, etc.; or R1 and R2 are each C1-10 alkyl, or R1 and R2 and the C atom to which they are attached join to form a C5-6 cycloalkyl gp..
Patent KR-970002233-B1 (KR)
Inventor: HAN WILLIAM T
IPC: C07D405/10
Filed: 1989-02-17
Granted: 1997-02-26
Abstract: 내용없음.
Patent KR-910007415-B1 (KR)
Title: Semiconductor memory device and its manufacturing method with stack capacitor structure
Inventor: KIM JAE-GAB
IPC: H01L27/10
Filed: 1989-04-25
Granted: 1991-09-25
Abstract: The semoconductor memory device having the stacked  capacitor structure comprisess: a bit  line  connected  with  MOSFET  source electrode (8) formed on silicon substrate (1);  a  charge  storage electrode (18) connected with drain electrode (8') contacted  with bit line; a capacitor dielectric film (19) and conducting material (20) for  cell  plate  electrode  formed  on  the  charge  storage electrode. The bit line is  formed  at  lower  side  than  stacked capacitor.
Patent KR-960010590-B1 (KR)
Inventor: KREG JAMES MICLE
IPC: C12N15/00
Filed: 1989-06-23
Granted: 1996-08-06
Abstract: 내용 없음.
Patent KR-960014869-B1 (KR)
Title: Process for the preparation of dispersible colloidal system of amphiphilic lipids in the form of submicronic liposomes
Inventor: STAINMESSE SERGE
IPC: A61K9/127
Filed: 1989-06-29
Granted: 1996-10-21
Abstract: Process for the preparation of dispersible colloidal systems of amphiphilic lipids in the form of submicronic oligolamellar liposomes, the wall of which consists of lipids and optionally a substance A and the core of which consists of water or an aqueous solution, and optionally containing a substance B, characterised in that: (1) a liquid phase is prepared, consisting essentially of a solution of the lipids and optionally of the substance A in a solvent or in a solvent mixture, and which can contain the substance B in solution, (2) a second liquid phase is prepared, consisting essentially of water or an aqueous solution of the substance B, (3) the first phase is added with moderate agitation to the second phase so as to obtain a colloidal suspension of liposomes and (4) if so desired, all or part of the solvent or solvent mixture and water is removed so as to obtain a colloidal suspension having the desired liposome concentrations. Applications: medicinal products, cosmetic products.
Patent KR-0158869-B1 (KR)
Inventor: HAY JAY
IPC: B24D3/14
Filed: 1989-08-19
Granted: 1999-01-15
Abstract: 내용 없음.
Patent KR-950000707-B1 (KR)
Inventor: NISHIDA REIZIRO
IPC: C09D5/44
Filed: 1989-08-30
Granted: 1995-01-27
Abstract: 내용 없음.
Patent KR-930004953-B1 (KR)
Inventor: FUKAYA NAOKI
IPC: H04L12/54
Filed: 1989-11-25
Granted: 1993-06-10
Abstract: 내용 없음.
Patent KR-940007119-B1 (KR)
Title: Process for making ketchup from pumpkin
Inventor: KIM KIL-YONG
IPC: A23L27/60
Filed: 1989-12-14
Granted: 1994-08-06
Abstract: The kechap with pumpkin is prepd. by (a) washing pumpkin, peeling, removing their cellulose and crushing, (b) concentrating the crushed pumpkin at 100 deg.C or more for 40-60 min., (c) saccharifying the obtd. pumpkin concentrate 800-900 g at 55-60 deg.C for 5-6 hrs., (d) mixing the saccharifyed pumpkin with vegetable juice of garlic 20-40 g, green onion 200-450 g and onion 200 g, and sucrose 120-180 g, and heating for 10 min., and (e) adding cinnamon powder 5-25 g, clove 5-15 g, pepper powder 5-15 and red pepper powder 10-15 g into the obtd. mixt., and re-mixing with sucrose 100-150 g, edible salt 50-150 g and venegar 100-150 cc to obtain the final product.
Patent KR-920008277-B1 (KR)
Title: Disc package raising device of disc player
Inventor: KIM YONG-TAEK
IPC: G11B17/08
Filed: 1989-12-30
Granted: 1992-09-26
Abstract: The disk in the disk pack cage is selected by  elevating  not deck mechanism but the disk pack cage so that the cavity  occupied by moving deck mechanism is reduced. The disk pack cage  apparatus includes a disk housing (2) for containing disk, pack cage, a disk pack cage (13) having trays (14) for inserting disks, an elevating unit  for  elevating  the  disk  housing,  and  a  selecting  unit depositing on a deck mechanism for selecting disk in the disk pack cage.
Patent KR-0146700-B1 (KR)
Title: Device for enclosing of electrical or electronical components or component groups and enclosing of electrical
Inventor: HORSMANN KARL-HENIZ
IPC: H05K5/06
Filed: 1990-01-16
Granted: 1998-08-01
Abstract: The component (B1) or the assembly is accommodated in a housing (G1) which is assembled from at least two housing parts (GU1, GO1) and from which connecting legs (A1) are guided to the exterior. In order to increase the sealing effect and hence to protect against internal corrosion, an outer capsule (Ak1) of a thermoplastic synthetic material is integrally formed by injection moulding at least in the region of the joint point (F1) of the housing (G1) and in the region where the connecting legs (A1) emerge from the housing (G1). 
<??>Particularly in the case of the hermetically sealed encapsulation of surface-wave filters, sections, which are welded to the outer capsule, having a small wall thickness are formed on the housing parts, circumferentially in their peripheral region. 
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Patent KR-920009223-B1 (KR)
Title: Circularly polarised waves antenna
Inventor: OH MIN-SOK
IPC: H01Q13/02
Filed: 1990-01-30
Granted: 1992-10-15
Abstract: A  M/W  circularly-polarized  wave  antenna  for  the  mobile broadcasting improves S/N ratio of the motile  repeater  link  and suppresses the under shot  phenomenon.  The  antenna  comprises  a primary radiator (c) fixed to the inner center part  of  a  closed circular waveguide (1), and a phase shifter (a) having  the  phase difference of 900 degrees from the  primary  radiator.  The  phase shifter is variable under the condition  that  the  phase  of  the primary radiator is 90 or 270 degrees.