baber/WOPTO huggingface dataset:
Patent ES-2613581-B1 (ES)
Title: Alimentador vertical de artículos
Inventor: MOZO PARRAMON ALBERT
IPC: B65G15/44
Filed: 2016-11-15
Granted: 2018-02-28
Abstract: Alimentador vertical de artículos, previsto para artículos con distintas alturas y/o diámetros, que comprende un bastidor (1) provisto de medios de desplazamiento motorizados de artículos para desplazar artículos desde una zona de recepción hacia una zona de salida (S) situada superiormente, y medios de apoyo para mantener los artículos en posición cuando son transportados desde el nivel inferior al nivel superior. Los medios de apoyo comprenden una pluralidad de travesaños (4) dispuestos transversalmente con respecto al eje longitudinal de los medios de desplazamiento, estando cada travesaño (4) conformado por un perfil con al menos dos regiones de apoyo con distinta longitud, correspondiendo la región de apoyo del perfil a la zona de contacto con los artículos cuando están siendo transportados en un plano no horizontal, estando dicho travesaño montado de forma giratoria, tal que el travesaño (4) puede adoptar al menos dos posiciones de trabajo, dependiendo cada posición de trabajo de la altura del artículo.
Patent ES-2613583-B1 (ES)
Title: Procedimiento para fomentar la abscisión de la aceituna y facilitar su recolección mediante la aplicación de n-nitro-l-arginina metil éster (l-name)
Inventor: GOMEZ JIMENEZ MARIA CARMEN
IPC: A01D46/00
Filed: 2016-12-21
Granted: 2017-12-18
Abstract: Procedimiento para fomentar la abscisión de la aceituna y facilitar su recolección mediante la aplicación de n-nitro-l-arginina metil éster (L-NAME).#La presente invención se refiere a un procedimiento para fomentar la abscisión de la aceituna, en especial, para facilitar su recolección mediante la aplicación de L-NAME en forma de pulverización foliar antes de la recolección de la aceituna. El tratamiento de los olivos con L-NAME reduce la fuerza de retención de la aceituna al árbol y de este modo, facilita que éstas puedan recolectarse económicamente con escaso auxilio manual o mecánico dentro de la época adecuada de recogida y ello, sin ocasionar desfoliación de los olivos.
Patent JO-2369-B1 (JO)
Title: Novel cyclohexyl sulphones
Inventor: TIMOTHY HARRISON
IPC: A61K31/4402
Filed: 2002-08-15
Granted: 2006-12-12
Abstract: 0
Patent JO-P20080381-B1 (JO)
Title: Antigen Binding Proteins to Proprotein Convertase subtillisin Kexin type 9 (pcsk9)
Inventor: BEI SHAN
IPC: A61K31/22
Filed: 2008-08-19
Granted: 2023-03-28
Abstract: Antigen binding protein that interact with proprotein convertase substilisin kexin type 9 ( PCSK9) are described, methods of treating hypercholesterolemia and other disorders by administering a pharmaceutically effective amount of an antigen binding protein of PSCK9 are described, methods of detecting the amount of PSCK9 in a sample using an antigen binding protein to PSCK9 are described.
Patent JO-3748-B1 (JO)
Title: Anti-cd38 antibodies for treatment of acute myeloid leukemia
Inventor: GWENN DANET-DESNOYERS
IPC: A61P35/02
Filed: 2015-12-03
Granted: 2021-01-31
Abstract: The present invention relates to methods of treatment of acute myeloid leukemia with anti-CD38 antibodies.
Patent JO-P20190182-B1 (JO)
Title: N-[4-fluoro-5-[[(2s,4s)-2-methyl-4-[(5-methyl-1,2,4-oxadiazol-3-yl)methoxy]-1-piperidyl]methyl]thiazol-2-yl]acetamide as oga inhibitor
Inventor: DREYFUS NICOLAS JACQUES FRANCOIS
Filed: 2018-01-19
Granted: 2023-03-28
Abstract: The present invention provides a compound of Formula I: Image of formula I or a pharmaceutically acceptable salt thereof, and the use of compounds of Formula I for treatment of neurodegenerative diseases and disorders, such as Alzheimerandrsquo;s disease.
Patent KR-790001546-B1 (KR)
Title: Implanter for liveng beings
Inventor: LOUIS BUCAIO
IPC: A61B19/00
Filed: 1974-03-11
Granted: 1979-10-27
Abstract: A transplanting device into the cavity and the introduction method were investigated.  The device was equipped of barb to fix into cavity and tissue-directing charger to surround with avulsion part of cavity mucous membrane.  The device was stable and effective to the body fluid condition.
Patent KR-790000359-B1 (KR)
Title: Television receiver
Inventor: KARL FRANCE NICOLBON NIKELS BE
Filed: 1974-05-06
Granted: 1979-05-07
Abstract: A TV which has synchronous detector was connected with outputs of the I.F. image carrier connector (25) which has a conversion switch (45) converts the state of regenerator into active or passive state. Input signal (43) of the conversion switch was connected with output (41) of the tuned detection circuit (33,39) and consequently converts the state or regenerator into active or passive state.
Patent KR-790000789-B1 (KR)
Title: Resin coated casting sand for shell mould
Inventor: DAGIYAMA AKIRA
Filed: 1974-05-09
Granted: 1979-06-30
Abstract: A mixt. of ammonia resol-type phenol-HCHO resin prepd. in the presence of NH3 or hexamethylenetetramine as a catalyst, and a resol-type phenol-HCHO resin prepd. in the presence of oxide or hydroxides of metals was useful as sand coating resins for shell-mold. A mixt. contg. PhOH 940g, 37% HCHO 1150g, and 25% NH4OH 150ml was heated to 80≰C for 50min and was kept at the temp. for 90min to obtain a resinous material and then spraydried to obtain a solid ammonia resol-type resin.
Patent KR-810000164-B1 (KR)
Title: Biaxially stretched poly olefin foil
Inventor: AUFSESS F
Filed: 1976-06-25
Granted: 1981-02-23
Abstract: A method of making plastics sheet which is simultaneously stretched biaxially, esp. crystalline plastics sheet such as polyolefin, consists of carrying out a longitudinal stretching before the simultaneous biaxial stretching stage.  Any desired ratio of longitudinal to transverse stretching can be obtd. accompanied by the uniformity normally expected of biaxial stretching; even with critical plastics materials, strength valves longitudinally can be obtained.
Patent KR-810001561-B1 (KR)
Title: Surface-treated soft contact lenses
Inventor: TIEFERNACH J
IPC: C08F8/32
Filed: 1977-04-20
Granted: 1981-10-27
Abstract: A process for producing a soft contact lens resistant to the diffusion and accumulation therein of substances which will promote its clouding and discoloration in use which comprises treating an acrylic ester hydrogel with an aliphatic amine containing 2-12 carbon atoms/molecule at room temp. -100oC.  The treatment being conducted for a sufficient period of time to structurally modify at least a major portion of polymer molecules on the outer surface of the hydrogel by chemically incorporating therein the modifying compound through its functional groups.
Patent KR-820001263-B1 (KR)
Title: Process of preparing for steryl gluco-side acetal derivatives
Inventor: MURAI H
IPC: C07H9/00
Filed: 1977-05-28
Granted: 1982-07-14
Abstract: Title compds. I (R1 = β-sitosteryl, stigmasteryl, cholesteryl; R2 = lower alkyl, phenyl), useful antiinflamatory, were prepd. by reacting compd. II with R2CHO or R2CH(CH3O)2.  Thus, 20.0 g steryl-4,6-propylidene-β-D-glucopyranoside steryl-β-D-glucopyranoside, 100 g propion aldehyde and a trace of conc. H2SO4 were heated at 50≰C for 30 min, inwhich 300 ml chloroform and 10 g anhydrous potasium carbonate were added, stirred for 3 hr, distilled, purified and crystallizea with n-hexane to give 5.3 g I.
Patent KR-800001515-B1 (KR)
Title: Forehearth homogenization apparatus
Inventor: SELL J
IPC: C03B9/18
Filed: 1977-09-05
Granted: 1980-12-19
Abstract: A forehearth for feeding molten glass to a flow feeders, a set of 7 inches blenders(12,13) in diameter, a set of 4 inches homogenizers(17,18,18,20) in diameter were spaced from each other along the length of the forehearth with three evenly spaced vertically positioned elongated plates located between the set of blenders and the set of homogenizers. The particular arrangement provides a system for eliminating, to a great extent, cords at the feeder.
Patent KR-810001199-B1 (KR)
Title: Air nozzle assembly for use in apparatus for producing glass fibers
Inventor: ISHIKAWA SHINZO
IPC: C03B37/02
Filed: 1977-10-20
Granted: 1981-09-28
Abstract: Air nozzle assembly for use in cooling the bushing used to produce glass fibers and to prevent the fibers coalescing comprises multiple nozzles(10) each of which directs a flow of air at the glass nozzle outlet.  The nozzles have a cross sectional area of 40-100 mm2 and have an elliptical shape with a ratio of major to minor axis of > 2.0.  The air jets impinge on the glass orifice assembly along the longitudinal center line.  The arrangement permits the number of orifices (8) in a given plate size to be increased and for efficient cooling to be obtained using relatively small amounts of air.
Patent KR-810001497-B1 (KR)
Title: Incremental dilution dewaxing process
Inventor: PAULETT G
IPC: C10G73/08
Filed: 1978-06-29
Granted: 1981-10-24
Abstract: In the dewaxing of lubricating oils, the base stock, at a temp. above its cloud point, is cooled with vigorous agitation to a temp. below its cloud point and then further cooled with min. agitation and incremental solvent addn. to its final temp., followed by filteration for the removal of wax.  It is not necessary for the solvent to be a temp. below that of the base stock or of the oil-solvent mixt.  The method increases throughput by increasing cycle rates, and gives dewaxed oil yields comparable to those from the diln.-chilling method.
Patent KR-820000929-B1 (KR)
Title: Yarn texturing air jet baffle
Inventor: PRICE SAMUEL T
IPC: D02G1/16
Filed: 1979-02-01
Granted: 1982-05-26
Abstract: In a yarn texturing air jet of the type including an enlongate housing having a central bore therethrough, an entrance end for passage of yarn into air jet, exit orifice for passage of yarn and air from air jet, and means for directing pressurized air into the central bore of housing to contact the yarn and pass outwardly through the exit end of air jet to impart crimps, curls and loops to the filament as the yarn passes through air jet, the combination therewith of a baffle positioned adjacent exit orifice of air jet, means for supporting baffle in a position substantially perpendicular to and spaced from exit orifice.
Patent KR-840000294-B1 (KR)
Title: Sensitive-press papers
Inventor: IKEJAYA HIDEO
IPC: B41M5/124
Filed: 1980-09-05
Granted: 1984-03-16
Abstract: Pressure sensitive recording paper is prepared from acid color-expanding agent(I); color-developing/anti-decolorizing agent(II), and binding agent.  II contains zinc compound selected from thioiodine, zinc oxide or zinc hydroxide comp.  I is selected from activated clay, aluminum silicate, kaolin, or condensing polymer of phenol and aldehyde compd.  Binding agent is selected from starch, polyvinyl alcohol, arabia rubber, carboxy methyl cellulose, hydroxy ethyl cellulose, copolymer of styrene-butadiene, copolymer of methyl methacrylate-butadiene or acrylic polymer.
Patent KR-820000976-B1 (KR)
Title: Scouring method of silk
Inventor: LEE C
IPC: D01C3/02
Filed: 1980-12-12
Granted: 1982-05-31
Abstract: This invention relates to the scouring method of silk which removes impurities as glue from raw silk. Silk is thrown into mixed aqueous solution which is solved ammonia, amine or 0.3-0.5% urea and 1-2% detergent, heated at 60≰C and 90-95≰C for 2-3 hrs and washed.
Patent KR-830001800-B1 (KR)
Inventor: HAN MUN HWI
IPC: C12N9/84
Filed: 1981-04-24
Granted: 1983-09-08
Abstract: 내용 없음.
Patent KR-850001561-B1 (KR)
Title: Device collecting sun light
Inventor: MORI GEI
IPC: F24S23/30
Filed: 1982-02-22
Granted: 1985-10-17
Abstract: A lens is mounted on a frame to focus solar light in the frame on an axis of paralle holes. A light-guide cable comprises a number of fibers, the fibers having light receiving and radiating end faces. Two groups of fibers have light-receiving ends extending into one or more of the holes. The position of the receiving faces of the first group are adjusted along the axis of each corresponding hole so that light for a selected spectral distribution is focused on it. Similary, the positions of the second group are adjusted, but in a different plane for a second selected spectral distribution. The fibers of the two groups are interspersed in the cable, so that the desired region is illuminated with light form both distributions.
Patent KR-870001858-B1 (KR)
Title: Weft yarn selector of loom
Inventor: HUJIDA YOSHIDAKA
IPC: D03D47/38
Filed: 1982-06-10
Granted: 1987-10-17
Abstract: The loom weft selector comprises stores (5a-5n) for a predetermined number of weft information signals, which receives an input designating those signals to be read out from the store at the rate of one per loom cycle.  The output side of the store (5a-5n) is connected to a system (6a-6h) which generates weft selection signals at times coinciding with the receipt of read-out signals from the store(5a-5n).  The loom weft selector system is provided for operating electronically at far higher speeds than mechanical systems.
Patent KR-880002433-B1 (KR)
Title: Process for the preparation of ascocloline derivation
Inventor: HOSOKAWA TOMOYOSHI
IPC: C07D213/79
Filed: 1982-09-10
Granted: 1988-11-12
Abstract: Ascochlorin derivs. (I)[R=OH; alkoxy, pyridinyl, substd. NH2, substd. Ph or phenoxyalkyl; n=0-5  and their salts were prepd. Thus, ascochlorin salt (A)(M=alkali metal) was reacted with BrCH2CO2Et to give (I)(R=OEt) which was hydrolyzed with aq. CaCO3 to give (I)(R=OH) .  Compds. (I) have the activity of the parent antibiotic ascochlorin, esp. antiviral and antitumour effects, and they also enhance the peripheral insulin sensitivity, improve lipid and carbohydrate metabolism, with lower toxicity.
Patent KR-890001192-B1 (KR)
Title: Vaccum interrupter
Inventor: KASHIWAKI YOSHIYUKKI
IPC: H01H33/66
Filed: 1984-03-21
Granted: 1989-04-26
Abstract: This interrupter has a pair of separable contact electrodes; a vacuum envelope; a contact-making portion of material of 20-60% IACS conductivity being part of one of the pair of contact electrodes; a magnetically arc-rotating portion of material of 20-30% preferably 10-15% IACS conductivity secured to the contactmaking portion so as to be apart from the other contact electrode when the two are in engagement; and radially spaced slots in the arc-rotating portion for magnetically rotating the arc between the contact electrodes.
Patent KR-860001017-B1 (KR)
Title: Arrangement for controlling the speed of electric motor
Inventor: KIM CHOL-KYU
IPC: H02P1/58
Filed: 1984-06-04
Granted: 1986-07-26
Abstract: A synchronous control circuit for AC motor takes the speed of first motor(A) as a reference speed and controls the speed of second motor(B) synchronously when the reference speed is higher than the preset value. Otherwise they run non-synchronously in the paper milling machine. The motor(A) starts some time later for a preset time given by the timer after the motor (B) starts in case of start. But the operation is reversed in case of stop to reduce the poor quality of the produced paper.
Patent KR-930000479-B1 (KR)
Inventor: MATSUDA IKURO
IPC: H03K19/017
Filed: 1984-07-12
Granted: 1993-01-21
Abstract: 내용 없음.
Patent KR-880000154-B1 (KR)
Title: The method of preparation for amino-nitro pyridine
Inventor: GREEN JAMES MICHAEL
IPC: C07D213/73
Filed: 1985-01-10
Granted: 1988-03-12
Abstract: Amino-nitro pyridine of formula (I) is prepd. by reacting alkoxy nitropyridine of formula (II) or its salt with ammonium acetate at 50-150 deg.C.  R1=H or C1-4 alkyl, X and Y are not same, CH or N, R2=C1-4 alkoxy.  Add 4-ethoxy-3-nitropyridine.HCl 3.0g, CH3COONH4 6.1g and anhydrous EtOH 6.7 ml into 3-neck-round bottom flask equipped with condenser and mechanical stirrer, reflux for 24 hrs, cool to about 4 deg.C, adjust pH to 8.0 with base i.e. NH4OH, filter and wash with EtOH, drying at 50 deg.C under vacuum to give 2.41g of 3-nitro-4-aminopyridine (identified by comparison with NMR spectrum of a certified sample).
Patent KR-930005510-B1 (KR)
Inventor: NAKAYAMA AKIRA
IPC: C09D127/06
Filed: 1985-05-10
Granted: 1993-06-22
Abstract: 내용 없음.
Patent KR-890000389-B1 (KR)
Title: Detecting method of finishing point of etching
Inventor: DAKAHASHI THYOSI
IPC: H01L21/3065
Filed: 1985-08-30
Granted: 1989-03-16
Abstract: The etching is made with gas plasma.  The etching rate is detected by monitoring the change of light intensity of reaction products.  The etching stop time is decided with the detected data.  The etching stop is precisely detected in time.  Its repeatability is good.  The wafer is etched by gas plasma of glow discharge.  Reaction products are released through the etching process emitting light wave length from the reacting products and are selected to introduce the monochromator.  The example of the emitting light is wave length of 519.8nm of CO or 337.0nm of N2, and experimental monitoring of the wave length 519.8nm of CO can detect etching stop time.
Patent KR-900001008-B1 (KR)
Title: Hybrid organometallic compounds, particulary for metal organic chemical vapor deposition
Inventor: HWI BENJAMIN C
IPC: C23C16/18
Filed: 1985-10-24
Granted: 1990-02-24
Abstract: A hybrid organometallic cpd has formula MRx.  In the formula, R is lower alkyl, phenyl, alkyl-substd. phenyl, cyclopentadienyl or alkyl- substd. cyclopentadienyl; X is 2-4; H is Bi, Sb, As, P, Se, Te, Mg or Be.  The cpd. is pref. dimethylmethylindium, diethymethylindium, methyl benzyltelluride, methylphenylgallium hydride, or ditolylgallium.  The cpd. is useful in a metal organic chemical vapour deposition.
Patent KR-900007208-B1 (KR)
Title: Hybrid nitrogen generator with auxiliary reboiler drive
Inventor: CHEUNG HARRY
IPC: F25J3/04
Filed: 1985-11-14
Granted: 1990-10-05
Abstract: rectifying a major portion of an air feed in a column at 35-145 psia pressure to form N2-rich vapour and O2-rich liq.; condensing a minor portion of the feed air at a pressure above the column pressure by indirect heat with the O2-rich.; feeding the condensate to the column at least one tray above the major air feed level; condensing part of the N2-rich vapour by indirect heat exchange with vapourising O2-rich liq.; supplying at least part of the resulting condensate to the column at least one tray above the minor air portion level; and recovering the rest of the N2-rich vapour as prod..
Patent KR-930001249-B1 (KR)
Inventor: MUNEKAWA KYUSHIRO
IPC: A23L11/00
Filed: 1986-04-15
Granted: 1993-02-22
Abstract: 내용 없음.
Patent KR-940003933-B1 (KR)
Title: Duel-viewfinder
Inventor: PARK HONG-CHOL
IPC: H04N5/225
Filed: 1986-08-06
Granted: 1994-05-09
Abstract: A pair-eyepiece viewfinder includes two ocular portions integrally formed in the body; a half mirror installed in the body for forming a primary virtual image by first reflecting an image displayed on a cathode ray tube; a full mirror for forming a secondary virtual image by second reflecting the light passing the half mirror; and ocular lenses having different focal lengths so that the primary and secondary virtual images appear to be the same in size, thereby facilitating photographing with two ocular portions.
Patent KR-940010034-B1 (KR)
Title: Process for preparing heterocyclic quinoxaline compound
Inventor: WATZEN FRANK
IPC: C07D487/04
Filed: 1986-10-17
Granted: 1994-10-21
Abstract: New heterocyclic derivatives having the general formula: wherein R′ is C<sub>1-6</sub>-alkyl, C<sub>3-7</sub>-cycloalkyl or C<sub>1-3</sub>-alkoxy­methyl, and- A - is -(CH₂)<sub>n</sub>-Y-(CH₂)<sub>m</sub>-,wherein n and m is O or 1 and -Y- is -O-, -S-, -CH₂-, or -NR"-, wherein R" is hydrogen or C<sub>1-6</sub>-alkyl.The compounds are useful in psychopharmaceutical preparations as anticonvulsants, anxiolytics, hypnotics, and nootropics and in human and animal health as anthelmintics, ecto- and endoparasiticides, insecticides and acaricides.
Patent KR-950009199-B1 (KR)
Title: A method for producing 2-keto-l-gulonis acid
Inventor: NOGAMI IKUO
IPC: C12P7/60
Filed: 1986-10-21
Granted: 1995-08-16
Abstract: 2-keto-L-gulonic acid is produced in a high yield by contacting a microorganism of the genus Pseudogluconobacter, either as it is or after processing, with L-sorbose.
Patent KR-900002802-B1 (KR)
Title: Ac generator
Inventor: KITAMURA YUDAKA
IPC: H02K9/19
Filed: 1987-01-20
Granted: 1990-04-30
Abstract: A generator includes a rotor shaft (1) to which a rotor core (21) is secured and excited by a coil (6), and a stator core (5) disposed opposite an outer periphery of the rotor core and mounting a stator coil (6).  Rear and front brackets (30)(26) are jointed together to define a housing supporting the stator core and the rotor shaft through bearing.  A rectifier (52) is provided for rectifying an output voltage generated by the stator coil and a voltage regulator (53) is used for regulating an output voltage of the rectifier to a predetermined value.  An annular coolant passage is formed between an enclosure half of the stator coil and the rear bracket.  A coolant outlet port is formed in the rear bracket and connected to the coolant passage and a branch coolant passage.
Patent KR-950001774-B1 (KR)
Inventor: IWATA YUKIO
IPC: B23B29/034
Filed: 1987-01-31
Granted: 1995-03-02
Abstract: 내용 없음.
Patent KR-900003120-B1 (KR)
Title: Apparatus for adjustment of wheel valance
Inventor: GATOW MOTONOBU
IPC: B23K9/04
Filed: 1987-03-31
Granted: 1990-05-08
Abstract: A measuring system determines the location and amount of imbalance, together with a welding unit for depositing compensating pads of metal. A positioning device aligns the location with the welding unit while a control unit determines the length of pad necessary for crrection and causes the length to be deposited either by movement of the disc or the unit. Pref. deposition is by ac welding, and the amt. of deposit is controlled by adjustment of time while current and wave feed remain constant. The system may include a control on max. pad length.
Patent KR-900000919-B1 (KR)
Title: Con-counting apparatus
Inventor: WON JAE-HYUK
IPC: G07F5/00
Filed: 1987-04-16
Granted: 1990-02-19
Abstract: The coin counter for counting the inserted coin amount in a public telephone includes a coin detector (10) comprising photoelectric devices which discriminate the kind of the inserted coin, an amplifier (20), a pulse generator (30) providing the pulse corresponding to the kind of the inserted coin, a counter (40) accumulating the pulses, a display driving circuit (50), and a display (60).  Each photoelectric device in the coin detector corresponds to the size of each coin like 10, 50, 100 won so that the kinds of the coin can be distinguished.
Patent KR-950005023-B1 (KR)
Inventor: HERNDON WILIAM H
IPC: H03K19/086
Filed: 1987-06-04
Granted: 1995-05-17
Abstract: 내용 없음.
Patent KR-900004516-B1 (KR)
Title: An addition for water system lubricant
Inventor: KANAMORI HIDEO
IPC: C10M173/00
Filed: 1987-06-11
Granted: 1990-06-28
Abstract: An aq. lubricant comprises (a) a bactericidal amt. of piperazine additive of formula (I), a reaction prod. of (I) with a C2-55 carboxylic acid, and (b) a lubricating oil distinct form (I). In (I), R10-R8 are each H or C1-18 alkyl; m is 2-5. Opt. carboxylic acid comprises oleic-, sebacic-, or 7-ethyloctadecanedioic acid. The lubricant further compises a mixed nonionic surface active emulsifier contg. an anionic surface active agent. Pref. (I) is N(hydroxymethyl) piperazine, N-(2-hydroxyethyl)-piperazine, or N(3-hydroxypropyl) piperazine. The lubricant has excellent rust proofness, emulsifiability and dissolvability.
Patent KR-900005910-B1 (KR)
Title: Mould assembly of injection molding machine
Inventor: ASAI IKUO
IPC: B29C45/34
Filed: 1987-09-28
Granted: 1990-08-16
Abstract: In a disc moulder, a stamper having a disc signal part is held by the nip formed by stamper press rings, each having a mounting flange part to hold the outer peripheral part of the stamper, to form a cavity, and a moulding material is injected in the cavity to mould a given disc. In the stamper holding structure of the disc moulder, an annular grooved part, not making contact with the outer peripheral edge part of the stamper, is formed in the inner side of the mounting flange of the stamper press ring. A recessed part, not making contact with the outer peripheral edge of the stamper, is also formed in the stamper holding mould and the outer peripheral edge part of the stamper is held by the mould in a manner that it is brought into a non-contact state.