baber/WOPTO huggingface dataset:
Patent EP-0318812-A2 (EP)
Inventor: CHIELI DAVIDE
IPC: H03K17/06
Filed: 1988-11-23
Abstract: A driving circuit comprising a low-voltage power supply line (V IN ), a MOS transistor (M1) having a driving terminal and adapted to feed a load and a control stage (10) connected to the power supply line (V IN ) and to the driving terminal of the MOS transistor (M1) to feed it. In order to allow the driving of the MOS transistor (M1) even when the power supply line voltage is lower than the threshold voltage of the MOS transistor (M1), the driving circuit comprises a bipolar transistor (T1) connected in parallel to the MOS transistor (M1) and a voltage multiplier circuit (14) connected at its input to a common terminal of the MOS and bipolar transistors and at its output to the control stage (10), the latter comprising comparators (20,21) adapted to initially enable the bipolar transistor (T1) to feed the multiplier circuit (14), which is thus capable of generating a voltage higher than the available supply voltage, and to subsequently deactivate the bipolar transistor (T1) and enable the MOS transistor (M1) when the voltage generated by the voltage multiplier (14) has reached at least the threshold voltage of the MOS transistor.
Patent EP-0288107-A2 (EP)
Inventor: JAYARAJAN JAY A
IPC: B32B27/06
Filed: 1988-04-08
Abstract: A process for creating decorative laminates comprising a resin based substrate layer (10), a barrier layer (30) impermeable to the reaction products produced during the curing of the substrate resin and subsequent heating of the resultant laminate, and a decorative layer (50) formed by a decorative ink pattern is disclosed. The barrier layer, which is located between the substrate layer and the decorative layer, prevents the reaction products from reaching the decorative ink pattern when the substrate resins are cured during laminate processing, and, during subsequent heating of the final product, acts as a sink for heat stress and prevents combustible toxic gases from passing through the laminate into the surrounding environment. Thus, destruction of the decorative ink pattern during laminating processing is prevented. Further, the resulting decorative laminates have high heat release thresholds and reduce the risk of flashover in enclosed areas.
Patent EP-0285414-A2 (EP)
Inventor: TANAKA SHIGEO
IPC: C09K9/02
Filed: 1988-03-30
Abstract: Resin compositions comprises from 1 to 99% by weight of a polymer A and from 1 to 99% by weight of a polymer B, polymers A and B having refractive indices which permit satisfaction of the relationship: 
    a ≦ 0.015 and b-a = ≧ 0.005 
wherein  a  and  b  are the minimum and the maximum, respectively, of the absolute value of the difference between the refractive indices of polymers A and B in the temperature range of 20° to 100°C.
Patent EP-0308127-A2 (EP)
Inventor: KAWAHARA YUKITO
IPC: H04N5/335
Filed: 1988-09-07
Abstract: A semi-conductor photo-detecting device comprises a semi-conductor substrate (3) of one electro-conductive type, a doped region of opposite electro-conductive type formed within the semi-conductor substrate (3) to form a  pn  junction between the doped region and the substrate to constitute a photo-detecting element 7 and a passivation film (2) formed on the photo-detecting element (7). The passivation film (2) has a non-­constant thickness so that intensity variation of light irradiated onto the photo-detecting element is reduced or eliminated.
Patent EP-0323320-A2 (EP)
Inventor: TAKAGI MASAAKI C O COPAL COMPA
IPC: G11B7/1353
Filed: 1988-12-21
Abstract: An optical head (200) usable also for an WORM-type optical disk device includes a diffracting optical system (7, 8) which is located on the optical path of a light beam and which diffracts the light beam so as to produce at least three diffracted light beams, and three light-receiving elements which receive the reflected light beams of the three diffracted light beams from the surface of an optical disk. The diffracting optical system is arranged so as to establish a positional relationship in which the three or more diffracted light beams do not lie on a single straight line in the cross-sectional distribution thereof. Among the three diffracted light beams, one lying at the foremost or rearmost position in the forward rotating direction of the optical disk is employed for generating a focusing servo signal or for reading or writing data, and the remaining two are employed for generating a tracking servo signal.
Patent EP-0304408-A2 (EP)
Inventor: STAHLBERG GOSTA
IPC: B23K9/04
Filed: 1988-08-18
Abstract: For the purpose of renovating a turbine chamber a cruciform support (2) is attached to the lower part of the chamber and a further cruciform support (20) is attached to the upper part of the chamber, and a rotatable and raisable and lowerable tool holder (16′) is arranged between the sup­ports for carrying out precision work on the chamber wall. The machine includes a pillar (6) which is rotatably jour­nalled on a thrust bearing (5) and two radial plane bear­ings (8, 11). Attached to the pillar is a slide path (15) having guide screws (16). A platform (16) is guided in the slide path. The pillar (6) is driven for rotation by a motor (30) and the guide screws (16) are forcibly rotated together with the pillar (6).
Patent EP-0284594-A2 (EP)
Inventor: MILLER WILLIAM DAVID
IPC: C07D241/08
Filed: 1988-03-22
Abstract: The compound (S)(+)-4,4ʹ-(1-methyl-1,2-­ethanediyl)-bis(2,6-piperazinedione) is prepared by treating propylenediamine tetraacetic tetraamide in a dipolar aprotic solvent with an alkali metal derivative of dimethyl sulfoxide to form a dialkali metal salt of (S)(+)-4,4ʹ-(1-methyl-1,2-ethanediyl)-­bis(2,6-piperazinedione); and neutralizing the dialkali metal salt.
Patent EP-0323856-A2 (EP)
Inventor: KITAHARA KOICHI C O PATENT DIV
IPC: H01L21/8249
Filed: 1989-01-05
Abstract: The main surface of a first semiconductor substrate (11) is bonded to the main surface of a second semi­conductor substrate (12) with an insulation film (13) interposed therebetween to form a composite substrate (10). The first semiconductor substrate (11) and insu­lation film (13) are selectively etched to form an etched portion which reaches at least the second semi­conductor substrate (12). An impurity layer with an impurity concentration different from that of the first semiconductor substrate (11) is formed on or in the surface area exposed to the etched portion of the first and second semiconductor substrates. An epitaxial layer having an impurity concentration different from that of the impurity layer is formed in the etched portion. The first semiconductor substrate (11), impurity layer (15) and epitaxial layer (14) are planarized. The first semiconductor substrate (11), impurity layer (15) and epitaxial layer (14) are etched to make a pattern of the impurity layer (15) on the surface of the composite substrate (20) and the composite semiconductor substrate (20) is aligned for formation of elements based on the pattern (21). The, elements are formed in the composite substrate thus aligned.
Patent EP-0346670-A2 (EP)
Inventor: JACOBS GUNDOLF DR
IPC: C08G18/72
Filed: 1989-05-27
Abstract: Elastic, open-cell polyurethane soft block foams are produced by reacting a) polyisocyanates of the tolylene diisocyanate and/or hexamethylene diisocyanate and/or isophorone diisocyanate type with b) compounds containing at least two hydrogen atoms which are active toward isocyanates, having a molecular weight of from 400 to 10,000, and, if desired, c) chain extenders and crosslinking agents containing at least two hydrogen atoms which are active toward isocyanates, having a molecular weight of 32 - 399, in the presence of d) water as a blowing agent in an amount of 5-15 parts by weight, based on 100 parts by weight of component b), and, if desired, in the presence of e) other blowing agents, catalysts and further assistants and additives which are known per se, the reaction of all the components being carried out at a characteristic number of less than 80, preferably 40-65.
Patent EP-0349859-A2 (EP)
Inventor: HOELDERICH WOLFGANG DR
IPC: C07D487/08
Filed: 1989-06-24
Abstract: A process for the preparation of 1,4-diazabicyclo[2.2.2]octanes of the general formula I <IMAGE> in which R<1> and R<2> independently of one another stand for hydrogen, C1-to C4-alkyl or C2- to C4-alkenyl,  by reacting piperazines of the general formula II <IMAGE> in which R<1> and R<2> have the abovementioned meanings and R<3> stands for hydrogen or C1- to C8-alkyl, in the presence of heterogeneous catalysts at temperatures of 50 to 600 DEG C and pressures of 0.01 to 50 bar, if appropriate with the additional use of a suitable solvent or diluent.
Patent EP-0352683-A2 (EP)
Inventor: GIBART ANTHONY GERARD
IPC: G06F15/177
Filed: 1989-07-23
Abstract: A programmable controller includes a processor module and a number of input/output modules (60) housed in a rack. Each input/output module contains a circuit that identi­fies characteristics of the module to the processor module. The circuit has a parallel input port (91 to 95; ID IN 0 to ID IN 4) and a parallel output port (81, 82; ID OUT 0, ID OUT 1). The outputs and inputs of the two ports are interconnected (86, 87) in a predefined manner according to the module characteristics. In addition, inputs of the input port are coupled to either a positive or negative voltage (V+; ground) source to identify other module characteristics. By sequentially sending data to the output port and then reading data from the input port of each input/output module, the processor can identify the characteristics of the modules in the programmable controller.
Patent EP-0355011-A2 (EP)
Inventor: YOSHII TETSUJI
IPC: G11B23/023
Filed: 1989-08-09
Abstract: A disc magazine has plural partition plates (3) piled up in the opening (2) of a magazine case (1) making plural slots (90), plural disc carriers being slidable toward the opening (2), and plural elastic stoppers being provided for guiding standard or larger discs (4) over the disc carrier while stopping smaller discs (34) by the inside (front) arc edge of the disc carrier, so that plural discs of different sizes can be received in the plural slots in a manner that the front edges of the received discs of different sizes are on substantially equal positions in all the slots (90) in the opening (2).
Patent EP-0356852-A2 (EP)
Inventor: ARNDT GERHARD
IPC: E01B5/10
Filed: 1989-08-19
Abstract: Noise-abating rail, particularly a grooved rail for curves in tramway tracks, which possesses a recess, in the running surface of the rail head, extending centrally in the longitudinal direction of the rail and being filled flush with a non-ferrous metal, and consisting of steel for the remainder of its cross-section, the recess being filled with an anti-friction metal. The anti-friction metal used is preferably a high-lead or high-tin alloy which is known per se.
Patent EP-0360141-A2 (EP)
Inventor: NATALI ADRIANO
IPC: B29C63/00
Filed: 1989-09-13
Abstract: Device for applying tapes of coating sheet material (9) inside grooves (3), particularly for decorating pressed-wood- shaving panels (2) to form furnishing and the like,including conveyor and guide means of said panels (2) under feeding-gluing means (15) of said tapes over said grooves therein lengthwise inserted and made stick by following pressure means (25,26) which are shaped for entering into said grooves (3) and then levelled by smoothing means of the out projecting wings.
Patent EP-0366958-A2 (EP)
Inventor: AMEEN JOSEPH GEORGE
IPC: C08L63/00
Filed: 1989-10-04
Abstract: A curable composition containing an epoxide component that includes an epoxy polymer and hardening component, and zinc oxide, where the relative amount of said zinc oxide to said epoxide component is about 1:4 to about 2:1 and use thereof.
Patent EP-0372433-A2 (EP)
Inventor: EAST ANTHONY J
IPC: G02F1/13
Filed: 1989-12-02
Abstract: This invention provides novel side chain liquid crystalline polymers. An invention polymer exhibits nonlinear optical response, and has utility as a transparent nonlinear optical component in optical light switch and light modulator devices. 
     A present invention side chain liquid crystalline polymer is illustrated by the following acrylate structure with pendant mesogenic side chains:
Patent EP-0357307-A2 (EP)
Inventor: YAZAWA YOSHIAKI NIPPON SEIKI C
IPC: H05K1/02
Filed: 1989-08-18
Abstract: In a printed-wiring board produced by arranging a plurality of wiring circuit patterns (2) on a printed-wiring board by screen printing and cutting out product regions corresponding to the wiring circuit patterns (2) by punching them along the circumferences of the product regions, the printed-wiring board (1) according to the present invention comprises deviation detecting patterns (4) for determining whether or not the condition of deviation of the printed pattern (2) is within an allowable limit, the deviation detecting patterns (4) being printed at the time of the screen printing of the wiring circuit patterns in the vicinity of the position of the cut plane of the board for each product region of each wiring circuit pattern (2).
Patent EP-0357323-A2 (EP)
Inventor: YOKOTA TAIZO
IPC: G11B7/1353
Filed: 1989-08-23
Abstract: An optical pickup device for focusing an irradiating ray from a light emitting element (1) on a recording medium (5) and letting a reflected ray reflected from this recording medium focus on a light receiving element (6) is characterized in comprising a diffracting element (2) disposed before the light emitting element and the light receiving element, at least a first diffraction region (2a) included in the diffracting element for separating the irradiating ray from the light emitting element into a main beam and sub-beams shifted from the main beam in a direction perpendicular to a track direction of the track where the main beam is focused, a second diffraction region (2b) included in the diffracting element for directing a reflected ray of the main beam reflected from the recording medium onto a main light receiving element and directing reflected rays of the sub-­beams onto sub-light receiving elements, and an arithmetic circuit (not shown) for detecting a tilt error signal showing the sub-­beam's focusing condition according to the output of the sub-light receiving elements, whereby an optical pickup device does not require installment of any separate tilt sensor for detection of a tilt signal, and also enables prevention of increasing the number of components and the increase of cost as a result of increased assembly steps and/or the required man-hours.
Patent EP-0372861-A2 (EP)
Inventor: RANA VIRENDRA VIR SINGH
IPC: H01L21/285
Filed: 1989-12-01
Abstract: In the manufacture of an integrated-circuit device, periodic interruption of grain growth during chemical vapor deposition of a metal film results in enhanced surface smoothness and ease of patterning. Interruption of grain growth is by deposition of an auxiliary material which, in the interest of high conductivity of the film, may be conductive, may form a conductive compound or alloy, or may be eliminated upon additional metal deposition. When the metal is tungsten, silicon is a preferred grain-growth interrupting material.
Patent EP-0346230-A2 (EP)
Inventor: BREVET PASCAL
IPC: B65D47/08
Filed: 1989-06-08
Abstract: Closing device with pouring means, especially for receptacles containing a powdered, granular or similar product to be dispensed, having an orifice capable of being opened and/or closed so as to coincide with the actuation of a movable part which it possesses. The said movable part (21) is a part mounted pivotably counter to the action of elastic return means about an axle (33) produced in one piece with a second part (20) forming the rest of the closing device and also providing the means (22) of mounting the closing device on the receptacle which it is to equip. The invention is used as a closing device of a receptacle for food products, such as chocolate powders or the like. <IMAGE>
Patent EP-0362075-A2 (EP)
Inventor: MORI KUNIO
IPC: G01G19/414
Filed: 1989-09-29
Abstract: An electronic scale device which measures weight of an item and calculates a price of the item by multiplying the weight of the item by a unit price of the item, and has printing device for printing out item data including the weight of the item and the price of the item on a label paper or a receipt paper, the electronic scale device consisting of:
     (a) a memory device for storing member-customer data including customer name, customer address, and total amount eligible for rebate based on total purchase amount, the member-­customer data being read from the memory device by inputting customer-identification data;   (b) a calculating device for calculating rebate data including rebate amount or a number of points for rebate, based on the total amount eligible for rebate; and   (c) a printer control device for controlling the printing device to print out at least one data set including the customer name and the customer address and a second data set including the rebate data on a receipt paper or a label paper by device of the printing device.
Patent EP-0382126-A2 (EP)
Inventor: HOWE WESLEY J
IPC: A61M5/31
Filed: 1990-02-03
Abstract: The invention refers to a syringe barrel (20) comprising an elongate body portion (21) having a longitudinal axis (22) and a side wall (23) spaced from said axis (22) defining a chamber (25) for retaining fluid, said body portion (21) having an open proximal end (31) and a distal end (32) having a passageway (33) therethrough in fluid communication with said chamber (25); said side wall (23) including a transparent portion (37) having indicia (35); and said side wall (23) including contrast means opposed from said indicia (35) for improving readability of said indicia (35), said contrast means making said side wall (23) within said contrast means less transparent than said transparent portion (37). Thereby graphics visualization is improved.
Patent EP-0400585-A2 (EP)
Inventor: ALBRECHT KONRAD
IPC: A01N25/02
Filed: 1990-05-30
Abstract: The present invention relates to liquid herbicidal agents in the form of emulsifiable concentrates (EC) or concentrated emulsion (EW), characterised in that they contain, besides 1 - 40% by weight of the active substance diclofop-methyl (I), fenoxaprop-ethyl (II) or its optically active isomer (D+) fenoxaprop-P-ethyl (III), 0.5 - 30% by weight of (C10-C18) fatty alcohol polyglycol ethers or (C8- C9)alkylphenyl polyglycol ethers which are 6 to 10 times ethoxylated as surfactants, and, in the case of EC formulations, 0.5 - 7% by weight of calcium (C18-C14)alkylbenzenesulphonate and, in the case of EW formulations, 0.5 - 7% by weight of an ethylene oxide/propylene oxide/ethylene oxide block copolymer which is phosphorylated in the alpha- and omega-position or a salt thereof as dispersant, besides the customary formulation components. Compared with the known active substance formulations, these agents have markedly increased activities and improved miscibility properties with water and with commercially available preparations containing other active substances.
Patent EP-0428192-A2 (EP)
Inventor: SPEGGIORIN GIUSEPPE
IPC: F16H41/00
Filed: 1990-07-23
Abstract: The variable-speed drive comprises a pump with variable- eccentricity radial pistons (3), a hydraulic motor (4), likewise with radial pistons, and a central body (56) fitted with frontal distributors (30 and 31) which are allowed to communicate, via the openings of the channels (32 and 33), with the radial cylindrical cavities of said pump and of said motor, respectively. 
<??>By modifying the eccentricity of the pump, the flow rate of fluid therein is caused to vary, thereby bringing about a change in the number of revolutions of the hydraulic motor. 
<IMAGE>
Patent EP-0426222-A2 (EP)
Inventor: GRASSO GIORGIO
IPC: H04B10/12
Filed: 1990-10-15
Abstract: The present invention relates to an optical amplifier, in particular for optical fiber telecommunication lines, operating with a transmission signal in a predetermined wavelength range, which amplifier comprises laser emitting active optical fiber doped with erbium, said fiber contains a further doping substance, distributed along the fiber, said doping substance shows an absorption, for a light having a wavelength lower than 1,540 nm, substantially higher than the absorption that the further doping substance shows for a light having a wavelength varying from 1,540 nm to the superior limit of the predetermined wavelength range of the transmission signal; preferably the further doping substance is samarium. 
     Samarium contained in the fiber is capable of absorbing the spontaneous erbium emission, which would constitute a noise source, allowing a signal to be amplified in a wavelength range substantially corresponding to the tolerance range of the commercially available signal laser emitters.
Patent EP-0395257-A2 (EP)
Inventor: SEMPOLINSKI DANIEL RAYMOND
IPC: G02B5/08
Filed: 1990-04-11
Abstract: A telescope mirror blank having a supporting network (40, 70) composed of sintered ceramic struts (32, 36) and a method of forming such core from a thermally crystallizable, powdered glass and as a separate component from the faceplate (44), are disclosed. Optionally, the mirror faceplate may be formed in a similar manner.
Patent EP-0404438-A2 (EP)
Inventor: EGUCHI NAOYA C O PATENTS DIVIS
IPC: G11B7/135
Filed: 1990-06-14
Abstract: An optical pick-up head apparatus comprises a yoke (46, 47) provided in an opposing relation to a magnet (44, 45), a movable member (48) having therethrough an aperture (51a, 51b) into which the yoke (46, 47) is inserted and around which a first coil (52) is wound in facing relation to the magnet (44, 45), an objective lens supporting device (53) having a pair of leaf springs (54, 55) for supporting the objective lens (56) such that the objective lens (56) can move in the direction parallel to the optical axis thereof, a plurality of second coils (57) of substantially square shape for moving the objective lens (56) in the direction parallel to the optical axis thereof, and a tracking control device (64) for rotating a mirror portion so that a beam spot focused on the optical disc by the objective lens (56) follows a track on the optical disc. The objective lens supporting device (53) is secured to the movable member (48), the movable member (48) is movably supported by the yoke (46, 47), and one side of each of the second coils (57) and of the first (52) are located within a common magnetic gap.
Patent EP-0422832-A2 (EP)
Inventor: NILSSON UNO
IPC: H01R13/514
Filed: 1990-10-04
Abstract: The invention concerns a connector for a multiwire electric cables and comprises two elongate covers (1, 5) inside of each there is located a cable wire conduit (2, 4) on which incoming (12, 13) and outgoing wires, respectively, are secured. A coupling plate (3) is disposed between the two wire conduits for interconnecting the incoming and outgoing wires. The interconnection is made by utilizing insulation displacement contacts having slots extending inward from both ends.