baber/WOPTO huggingface dataset:
Patent EP-0416333-A1 (EP)
Inventor: BULAT EMEL S
IPC: H01L21/3065
Filed: 1990-08-14
Abstract: In fabricating a junction field effect transistor, specifically a static induction transistor an epitaxial layer (11) of high resistivity N-type silicon is grown on a substrate (10) of low resistivity silicon. The surface of the epitaxial layer is marked in a pattern to expose a plurality of elongated surface areas (13). The wafer is subjected to reactive ion etchings in SiCl₄ and Cl₂ and subsequently in Cl₂ to form parallel grooves (15) with rounded intersection between the side walls (17) and bottoms (18) of the grooves (15). Ridges (16) of silicon are interposed between grooves (15). A layer of silicon oxide (21) is grown on all the silicon surfaces. The grooves (15) are filled with deposited silicon oxide (23) and silicon oxide is removed to form a planar surface with the upper surfaces of the ridges (16). P-type conduc­tivity imparting material is ion implanted into alternate (gate) ridges (16A) and diffused to form gate regions (30) which extend laterally beneath the silicon dioxide (23 and 21) in the adjacent grooves (15), N-type conductivity imparting material is ion implanted in the top (33) of the intervening (source) ridges (16B). Metal contacts (35, 34, 32) are applied to the gate ridges (16A), source ridges (16B), and the bottom of the substrate.
Patent EP-0474923-A1 (EP)
Inventor: DUCHATELET ROLAND
IPC: G16Z99/00
Filed: 1990-09-11
Abstract: This invention relates to an apparatus that enables the TV/video spectator or radio/cassette listener to participate in broadcasted or recorded quiz games at home or in a room outside the studio. 
     Every player has his own apparatus to give his answer. This individual apparatus calculates the score according to various parameters, which are determined by the studio, but which may be adapted in some realizations according to the player's wish. There may be a number of players in one room all having their own apparatus and competing against the players in the studio and/or in the room. 
     The question of the quiz master is followed by a signal containing all the information for the apparatus to work (correct answer, maximum reaction time, stake, mode of operation, etc.) The player gives his answer by a keyboard and the points are shown on a display on the apparatus.
Patent EP-0470301-A1 (EP)
Inventor: STEHPAN WOLFGANG DIPL-ING
IPC: H01H33/14
Filed: 1990-08-09
Abstract: 2.1 High voltage SF6 pressurised gas circuit breakers for 162 DIVIDED 3 Hz have a contact switching off speed which is less than that for 50 Hz operation and are subject to more stringent requirements because of the considerably longer arc times in the case of 162 DIVIDED 3 Hz, which requires matching of the extinguishing chamber. 2.2 For a high voltage SF6 pressurised gas circuit breaker for 162 DIVIDED 3 Hz, at least two interrupter units of a high voltage SF6 pressurised gas circuit breaker for 50 Hz having the necessary short-circuit switching off capability are connected in series, whose switching off is carried out displaced in time such that the respective extinguishing regions (7, 7a, 7b) follow one another in time without interruption and, overall, cover a period of more than one half cycle (30 ms). <IMAGE>
Patent EP-0387990-A1 (EP)
Inventor: NAKAYAMA TAKAO C O R D CENTER
IPC: H04B10/50
Filed: 1990-02-06
Abstract: An apparatus 10 controls the enable response time of a laser diode 12 during the reception of a data signal. The laser diode 12 is powered by the combined outputs from a pulse and bias current supply 14, 16. The pulse current supply 14 is connected to an external controller (not shown), which provides serial pulses of data. The pulse current supply 14 converts the serial pulses of data to a series of current pulses that drive the laser diode 12 between high and low optical output intensity. The bias current supply 16 provides a DC offset to the pulse output of the pulse current supply 14. Further, the apparatus 10 controls the level of the DC offset to maintain the minimum optical output intensity of the laser diode 12 at a preselected desired level. The apparatus 10 constitutes a closed-loop, bias-current-­supply controller 20, which employs a feedback path for monitoring the optical output intensity of the laser diode 12 and controlling the optical output intensity to a preselected value. To accomplish stable operation but permit rapid response to an enable signal, the closed-­loop, bias-current-supply controller 20 has a first preselected response characteristic for a first preselected period of time in response to receiving the enable signal and a second preselected response characteristic thereafter.
Patent EP-0392698-A1 (EP)
Inventor: TSUCHIYA YOSHINOBU
IPC: F02N11/08
Filed: 1990-03-28
Abstract: An engine starter system for driving an engine starter (1) with electric power from a battery (5) mounted on a motor vehicle has a pair of large-capacitance capacitors (3,4) which are selectively connected to the battery and the starter. One of the capacitors is connected to the battery and charged thereby when the detected voltage across the one capacitor is lower than a predetermined voltage, and the other capacitor which is charged sufficiently enough is connected to the starter. In use therefore electrical energy whose voltage is higher than the predetermined voltage is continuously supplied to the starter to start the engine.
Patent EP-0460319-A1 (EP)
Inventor: GUEGUIN MICHEL
IPC: C22B34/12
Filed: 1990-06-08
Abstract: A synthetic rutile is prepared from a titaniferous slag, typically containing at least about 1.0 weight percent magnesium oxide and at least some portion of its titanium values as Ti₂O₃, by a method comprising contacting the slag with chlorine gas at a temperature between about 400°C-850°C such that the magnesium oxide and chlorine gas react to form magnesium chloride, and then removing the magnesium chloride from the slag, typically by washing the slag with water. In one embodiment, the synthetic rutile can be further upgraded by subjecting it to either a caustic or acid leaching treatment.
Patent EP-0420451-A1 (EP)
Inventor: CZERNER PETER A
IPC: D06F75/18
Filed: 1990-09-12
Abstract: An adjustable steam flow control for an electric steam iron (10) includes a metering rod (36) mounted in threaded engagement with a support bushing (64) and having a lower end (60, 62) that extends into a valve orifice (46) between the water reservoir (20) and the steam generation chamber (32). A pinion gear (54) is secured to the metering rod (36) and engages a spur gear sector (78) on a rotatably mounted steam adjust knob (24). Rotation of the steam adjust knob (24) in one direction or the other by the user causes the metering rod (36) to rotate in its bushing (64) and advance into or retract from the orifice to thus control the steam flow rate. The steam control knob (24) is provided with a spur gear sector (78) so that partial rotation of the steam control knob (24) will rotate the metering rod (36) through its full range of motion.
Patent EP-0382617-A1 (EP)
Inventor: VALLEE YANNICK
IPC: C07C319/02
Filed: 1990-02-05
Abstract: The manufacture of vicinal alkanedithiols from the corresponding alkylene trithiocarbonates. 
<??>The process according to the invention consists in treating the alkylene trithiocarbonate with an alkali metal sulphide and then acidifying the reaction mixture. 
<??>This process is particularly well suited for the synthesis of ethanedithiol from ethylene trithiocarbonate.
Patent EP-0406038-A1 (EP)
Inventor: LEVRAI ROLAND
IPC: B60G11/16
Filed: 1990-05-31
Abstract: The invention relates to a suspension spring support (3) for motor vehicles forming a pressure sensor for a hydraulically controlled brake regulator, this part having a base (1) firmly fixed to the vehicle and a plate (5) for supporting the spring (3) mounted so that it can slide on the base (1) forming a tight seal against the pressure prevailing in a sealed chamber (20) coaxial with the spring (3) arranged between the base (1) and a part firmly fixed to the plate. According to the invention the chamber (20) is connected to a control chamber of the external regulator on the support element and a means of guiding (10) the plate (5) in relation to the base (1) is axially arranged at the centre of that element. <IMAGE>
Patent EP-0453453-A1 (EP)
Title: Leukaemia inhibitory factor from livestock species and use thereof to enhance implantation and development of embryonic cells.
Inventor: GOUGH NICHOLAS MARTIN
IPC: C12N5/073
Filed: 1990-01-09
Abstract: Disclosed is the in vitro development of mammalian embryos to the implantation stage by culturing the embryos in a medium containing leukemia inhibitory factor (LIF).
Patent EP-0462198-A1 (EP)
Inventor: NAESLUND JAN ERIK
IPC: A41B11/00
Filed: 1990-02-22
Abstract: Protège-tibia absorbant les chocs et les coups, utilisé lors de la pratique de sports, fixé à la jambe (2) de l'utilisateur au moyen d'un bas (3). Ledit protège-tibia (1) peut être thermo-formé individuellement en une forme de coupe se conformant à la forme de la jambe (2) de l'utilisateur, et est constitué d'une seule pièce en matière plastique élastique, légère et molle, ne frottant pas contre la jambe (2).
Patent EP-0491792-A1 (EP)
Inventor: MARANGOS PAUL
IPC: A61K31/70
Filed: 1990-09-12
Abstract: Procédés de prévention de la détérioration de tissus nerveux provoquée par l'excitotoxicité due à la libération accrue d'acides aminés excitateurs, par des concentrations extracellulaires croissantes d'adénosine dans les tissus nerveux et autour de ceux-ci. Ces procédés sont particulièrement utiles dans le traitement d'états neurodégénératifs tels que la maladie de Parkinson, la maladie d'Alzheimer, la Sclérose latérale amiotrophique ou la maladie d'Huntington.
Patent EP-0493446-A1 (EP)
Title: Treatment of autoimmune disease.
Inventor: CHANG TSE WEN
IPC: A61K45/00
Filed: 1990-09-14
Abstract: Autoimmune diseases are associated with particular immunoglobulin isotypes, particularly the isotypes IgG or IgM, and can be treated by specifically suppressing the production of that immunoglobulin isotype or subtype. Isotypic-specific suppression can be achieved by administering peptides which have an amino acid sequence corresponding to the extracellular segment of the membrane-bound domain (the "migis" segment) of an immunoglobulin of the isotypic class or subclass or an epitope thereof. Suppression can also be achieved by administering antibodies and related and derivative products specific for the migis segment.
Patent EP-0446372-A1 (EP)
Inventor: IWAMOTO HIDETOSHI - OAZA SHICH
IPC: G02B1/04
Filed: 1990-10-01
Abstract: A contact lens made from a copolymer prepared from a monomer mixture comprising perfluorooctylethyloxyalkylene (meth)acrylate, siloxanyl (meth)acrylate, alkyl methacrylate, a hydrophilic monomer, and a crosslinking agent as the indispensable components. This lens has good oxygen-permeability, hardness, and wettability with water, thus being quite useful practically.
Patent EP-0453579-A1 (EP)
Inventor: MIMURA TAKASHI - WAKABADAI
IPC: C08J7/04
Filed: 1990-11-14
Abstract: Film indiqué comme matériau de base pour supports de transfert thermique et pour papier stencil thermique. Le film stratifié ci-décrit se compose principalement d'une couche de cire déposée sur au moins l'une des surfaces d'un film polyester et se caractérise en ce qu'il présente en surface au moins 20 pcs/100 mum2 de protubérances possédant un rapport longueur longitudinale/longueur transversale non inférieur à 3. Utilisé comme matériau de base pour supports de transfert thermique ou pour papier stencil thermique, ce film présente de bonnes caractéristiques de défilement, ne provoque pratiquement pas d'usure ou d'encrassement des têtes, ne repousse pas l'encre lors de l'application de cette dernière et présente d'excellentes caractéristiques d'adhérence de l'encre, de netteté d'impression, de résistance au collage et d'aptitude au gaufrage.
Patent EP-0496017-A1 (EP)
Inventor: YOSHIKAWA MOTONAO
IPC: B41M5/44
Filed: 1991-01-23
Abstract: The present invention relates to a heat-sensitive recording medium which is excellent in dot-reproducibility and in adhesion between a support and a heat-sensitive recording layer provided thereon. The present recording medium comprises a synthetic-resin support, an ionomer-resin layer on the support, and a heat-sensitive recording layer provided on the ionomer-resin layer.
Patent EP-0442517-A1 (EP)
Inventor: YAMAMOTO SHINJI C O CENTRAL RE
IPC: B01J27/199
Filed: 1991-02-15
Abstract: A process for preparing a multi-component catalyst for producing methacrylic acid containing phosphorus, molybdenum and vanadium comprising using in preparing the catalyst, at least one member selected from the group consisting of the oxide, carbonates, acetates and hydroxides of each catalyst-constituting element as a source of the element; dissolving or dispersing the selected sources of the catalyst-constituting elements in water; adding at least one member selected from the group consisting of ammonium carbonate, ammonium hydrogencarbonate, ammonium sulfate and ammonium hydrogensulfate to the resulting aqueous solution or dispersion; removing water therefrom and then heat-treating the residual product. 
The catalyst obtainable by this process and its use are also disclosed.
Patent EP-0456023-A1 (EP)
Inventor: LUNDER TITO LIVIO
IPC: A23L33/15
Filed: 1991-04-20
Abstract: According to the invention green tea leaves are infused in water, the extract is concentrated to a liqueur consistency, this liqueur is extracted with dichloromethane to remove the pigments, the aqueous phase is mixed with purified sea sand to form a paste, the catechin complexes are eluted with acetone and the acetone is evaporated off to obtain a powder.
Patent EP-0462441-A1 (EP)
Inventor: KERSCHER MAX DIPL-ING FH
IPC: F21V7/10
Filed: 1991-06-03
Abstract: In a reflector arrangement of a device which is used for the individual illumination of objects, great demands must be made of the durability of the mirror layers to be arranged on the support plates. 
<??>In particular in the case of large-surface reflector arrangements, which are exposed to the weather, there are considerable difficulties for meeting this requirement. 
<??>To overcome these difficulties, it is proposed to make the reflector arrangement with shell supports (2) of tub-shaped design made of transparent material, which are provided on the inner shell side with a vapour-deposited mirror layer (6), this mirror layer (6) being protected permanently by suitable covering measures (3, 7) against environmental influences which impair or destroy it. 
<IMAGE>
Patent EP-0468191-A1 (EP)
Inventor: NIEDERER KURT W
IPC: D01H7/90
Filed: 1991-06-14
Abstract: A spinning rotor (4) is mounted rotatably about an axis (12) on a two-for-one rotor (8) which is itself mounted rotatably about the same axis (12) on a housing (1). The two-for-one rotor (8) is set in rotational movement via a driving wheel (15), and the spinning rotor (4) executes an oppositely directed rotation driven via a planet gear consisting of a gear ring (20) fastened to the housing (1), of a transmission gearwheel (21) mounted eccentrically on the two-for-one rotor (8) and having a gear ring (24) and of a driving gear wheel (25) connected to the spinning rotor (4). Fibres are transported via a feed channel (17) into a cavity (6) surrounded by the spinning rotor and yarn (28) is drawn off through a draw-off orifice (7) into a draw-off channel (14) and guided back in an arc externally around the spinning rotor (4) to the axis (12). Two further turns are thereby imparted to the yarn (28) per revolution of the two-for-one rotor (8) in a similar way to two-for-one twisting. <IMAGE>
Patent EP-0465990-A1 (EP)
Inventor: HERZOG KARL
IPC: A45D20/12
Filed: 1991-07-02
Abstract: The invention relates to a hair drier (10) having a housing (12) and a handle part (14) which is connected swivellably to the housing (12) and can be moved from a position of operation into a position of transportation. The handle part (14) consists of a plurality of, in particular three, handle shells (16, 18, 20) which are connected to one another by means of hinge devices (22, 24). This construction guarantees a compact volume of the hair drier (10) during transportation and, at the same time, ensures good usability of the handle part (14) in the position of operation. <IMAGE>
Patent EP-0527250-A1 (EP)
Inventor: FANTACCI GIANFRANCO
IPC: B63H11/113
Filed: 1991-08-09
Abstract: The invention relates to a water jet propulsion apparatus for a watercraft or a vessel, particularly for a mine hunter. According to the invention at least one first water jet thruster unit (A) constructed for high-speed navigation and provided with its own direction and inversion control means (6,7,8), is combined with at least one second water jet thruster unit (B) constructed for low-speed noiseless navigation and provided with its own direction and inversion control means (14;24). One water pumping system (1) is associated with both of the first and the second water jet thruster units (A,B) and is alternatively connectable to the one or the other of these first and second thruster units (A,B).
Patent EP-0477631-A1 (EP)
Inventor: BRAND SIEGBERT DR
IPC: C07C235/34
Filed: 1991-09-07
Abstract: Ortho-substituted phenylacetic acid amides I <IMAGE> (R<1> = H, alkyl, cycloalkyl, alkenyl, alkynyl, phenylalkynyl, alkoxyalkyl, alkoxycarbonyl, phenyl, phenylalkyl, phenylalkenyl or phenoxyalkyl, 5-/6-membered heterocycle having 1-3 hetero atoms to which there may be fused a benzene ring or a 5-/6-membered heterocycle; R<2> and R<3> = H, CN, halogen, alkyl, alkoxy; R<4> and R<5> = H, alkyl and R<4> or R<5> - alkoxy; Y = O, S, SO, SO2, N = N, O-CO, CO-O, CO-O-CH2, alkylene or haloalkylene chain, alkenylene chain, alkynylene chain, oxyalkylene chain, thioalkylene chain, alkyleneoxy chain, carbonylalkylene or alkylenecarbonyl chain, W = alkoximino group, alkoxymethylene group, alkylthiomethylene group), with the exception of compounds in which R<1> is hydrogen, phenyl or 2,2-dimethyl-3-(2',2'-dichlorovinyl)-cyclopropyl, R<2> to R<5> are hydrogen, Y is carbonyloxymethylene and W is methoxymethylene or methylthiomethylene. The compounds I are suitable as fungicides and for controlling pests.
Patent EP-0479162-A1 (EP)
Inventor: HUNG YANN
IPC: C01G33/00
Filed: 1991-09-27
Abstract: A new synthetic method for the production of alkali metal niobates and tantalates is disclosed. The method involves the pyrolysis of a stoichiometric salt of an alkali metal and a niobium or tantalum complex of a bidentate or tridentate ligand. These salts are stable and, since the alkali metal and the niobium or tantalum are already present in stoichiometric amounts, the resulting material comprises a substantially pure alkali metal niobate or tantalate.
Patent EP-0483588-A1 (EP)
Inventor: MUELLER HERBERT
IPC: A47J27/17
Filed: 1991-10-14
Abstract: In a steam-heated cooking vessel having a double shell surrounding the food container, in which water vapour is produced via a heated water bath, the valve (6) serving for venting the double shell is attached closely above the level of the water bath. In this manner, the heating-up operation is reduced to the shortest time without appreciable amounts of water vapour escaping. In a condenser connected downstream of the valve, any condensation occurring is automatically returned into the vapour space. <IMAGE>
Patent EP-0495207-A1 (EP)
Inventor: SCHLIPF MICHAEL DR
IPC: C09D129/10
Filed: 1991-12-12
Abstract: The fluorine-containing paint binder contains   a) 5 to 80% by weight, based on the sum of the components a) + b), of a finely divided low molecular weight polyfluoro-olefin, derived from fluoro-olefins of the formula CF2=CFX, in which X is F or Cl, with a melt viscosity of 10<1> to 10<6> Pa.s, b) 95 to 20% by weight, based on the sum of the components a) + b), of a fluorine-containing copolymer, which is composed of copolymerised units of a fluoro-olefin of the general formula CF2 = CFY, in which Y is F, a perfluoroalkyl radical having 1 to 8 C atoms or Cl, of copolymerised units of a vinyl ester of a highly branched carboxylic acid with an acyl radical of 9 to 11 C atoms and of copolymerised units of a vinyl monomer containing OH groups, and c) 20 to 300 parts by weight, based on 100 parts by weight of the sum a) + b), of a customary paint solvent. c
Patent EP-0464914-A1 (EP)
Inventor: HARING PETRUS G M
IPC: A23L27/10
Filed: 1991-06-21
Abstract: The invention relates to the use of an unrefined edible oil for flavouring foodstuffs. The unrefined edible oil contains at least 10 ppm of C 6 -C 20  lactones and is preferably based on a lauric fat, in particular coconut oil. The edible oil is obtained in such a way that is has a relatively low level of free fatty acids and a relatively high content of lactones, especially C 8 -C 12  lactones. The weight ratio between lactones and free fatty acids is at least 1:100 and preferably at least 1:10. 
     The use of such unrefined edible oils is particularly advantageous for flavouring butter-like foodstuffs and other foodstuffs associated with fats, such as spreads.
Patent EP-0471399-A1 (EP)
Inventor: HAULIN TORD
IPC: G01R19/165
Filed: 1991-07-25
Abstract: A device for monitoring supply voltage locally on integrated circuits after mounting on PC boards includes at least one voltage monitor as well as boundary scan means (6) for reading out the result of the monitoring. The monitor includes an extreme value detector (2), situated at the place on the circuit surface where voltage monitoring is desired.
Patent EP-0453287-A1 (EP)
Inventor: WILLIAMS RICHARD T
IPC: F16K3/08
Filed: 1991-04-18
Abstract: A faucet has control mechanism for passing water through the faucet or for shutting the water of, which comprises ceramic discs (33,49,59) having mating long-wearing highly polished faces that provide a water seal when the discs are in closed position, and have openings (55,57,59a) therein which provide a water passageway when the discs are in open position for axial flow. The ceramic discs themselves form the passageway or pressure vessel which contains the flow and permits the use of a side-operated handle (29) which attaches to a controller inside the faucet which is open to the atmosphere. A lower body portion has a threaded stem (19) with a pair of opposed flat portions for admitting a mounting nut having a radial opening, without having to thread the nut on the threaded stem all the way from the bottom of the stem.
Patent EP-0475576-A1 (EP)
Inventor: ARVIDSON ARVID NEIL
IPC: C01B33/025
Filed: 1991-08-05
Abstract: The instant invention is a process for preparing silicon metal in a direct current, submerged-arc furnace. The process comprises adding a source of silicon dioxide and a source of carbon to a substantially closed furnace. Heat is provided to the furnace by striking a direct current arc between a moveable cathode and a anode functional hearth. Silicon metal is tapped from the furnace. The described process may also be used to prepare silicon metal alloys.
Patent EP-0448472-A1 (EP)
Inventor: MARTEL JEAN-PIERRE
IPC: B01D11/02
Filed: 1991-03-21
Abstract: Apparatus for processing vegetable raw materials. This apparatus comprises a number of processing devices (12u, 12m, 12l) and is characterised in that it comprises means (20) for tilting at least some of the processing devices. By virtue of the tilting means (20), the apparatus can operate as an extractor or a distiller or simultaneously as an extractor-distiller.   <IMAGE>
Patent EP-0457712-A1 (EP)
Inventor: ABDEL-MESSEH WILLIAM
IPC: F01D5/18
Filed: 1991-05-14
Abstract: Augmenting ridges (38) of zig-zag configuration are provided on a heat transfer surface for increasing local heat transfer in a selected zone of the surface.
Patent EP-0487471-A1 (EP)
Title: A knob for sanitary fittings having a built-in clock
Inventor: GUGLIELMINI MARCO
IPC: G04B37/14
Filed: 1991-11-22
Abstract: A knob (10) for sanitary fittings has a built-in clock (14) whose dial (20) is visible in the upper portion of the knob.