baber/WOPTO huggingface dataset:
Patent EP-0375258-A2 (EP)
Inventor: KOZE JEFFREY T
IPC: H01L21/306
Filed: 1989-12-13
Abstract: An improvement in silicon wafer flatness is obtained by reducing the time spent in polishing the wafer. After a conventional lapping operation, the wafer is coated with an etch resistant coating, typically silicon nitride. A polishing step removes the nitride coating on the flat surfaces of the wafer, but leaves a nitride coating on the sides of pits that are formed in the lapping operation. The wafer is then etched, typically in KOH, to remove the silicon surface to below the depth of the pits. The undercutting of the nitride coating removes the pits, or leaves relatively small protrusions in their place. The protrusions may be removed by a short polishing operation. Other wafer types and etch-resistant materials are possible. Integrated circuits are typically formed on the wafers by lithography techniques that advantageously utilize the improved flatness.
Patent EP-0375326-A2 (EP)
Inventor: PIERCE CLAUDIA C
IPC: F22B37/56
Filed: 1989-12-18
Abstract: Concentration cycles, percent life holding time for a component in the boiler and continuous treatment concentra­tions are monitored or determined in a boiler system by adding to the feedwater an inert tracer in a predetermined concentration C I , which reaches a final concentration C F  at steady state in the boiler and which exhibits a blowdown concentration C t  at different points in time. The compo­nent is an inert tracer having no significant carryover in the steam, nor significant degradation during boiler cycles. The tracer is monitored by continuously converting a charac­teristic of its concentration to an analog which may be recorded as a function of time.
Patent EP-0341195-A2 (EP)
Inventor: TEMPLIN JURGEN
IPC: G10K3/00
Filed: 1989-05-05
Abstract: The invention relates to a rattle body (1), such as is known for example as a toy for children. The rattle body (1) provided with a handle (grip 3) can be filled as required, through at least one closeable aperture (8, 10), with small granular articles which, together with the resonant hollow body (2) of the rattle body, produce the desired rattling effect. The hollow body (2) has fixing elements which, together with fixing elements (14) provided on advertising media (12, 13), allow advertising media (12, 13) to be fixed to the rattle body (1). <IMAGE>
Patent EP-0379938-A2 (EP)
Inventor: YANAGI TOORU C O YOKOHAMA WORK
IPC: G02B6/245
Filed: 1990-01-16
Abstract: An arrangement for effectively fusing together two optical fibers. Many fibers currently have a carbon-based coating (12) applied to the bare fiber, with the coating being surrounded by a plastic jacket (13). It has been difficult to fuse the two fibers together due to the coating. The present invention provides an effective method for removing the coating using a rapid and high temperature electric discharge (4). The removal of the coating allows a better connection of the two fibers with the connection having a low transmission loss.
Patent EP-0382084-A2 (EP)
Inventor: MOENCH THEODOR PETER
IPC: E04C2/54
Filed: 1990-02-01
Abstract: A multilayered hollow plate (66) of thermoplastic material which comprises mutually parallel running layers or flange plates (70, 72) which can be fitted together by means of webs (68). Each face (73, 74, 84) of each layer is smoothed, so that a hollow plate of high visual quality is obtained. <IMAGE>
Patent EP-0399463-A2 (EP)
Inventor: OTSUKA REIKO C O SHOWA DENKO K
IPC: C08L65/00
Filed: 1990-05-22
Abstract: Disclosed is a radical polymerizable composition comprised of a polymer having a π-electron conjugated structure having repeating units of a mono-substituted or di-substituted isothianaphthene structure, which is represented by the formula [Ia] and/or [Ib]:
      wherein R¹ and R² represent hydrogen, C1 - 18 alkoxy group, or -O(CH₂CH₂O) n CH₃ [n: 1 to 4] with the proviso that the case where both R¹ and R² represent hydrogen is excluded, X is an anion, y is from 0.01 to 1, and m is from 5 to 5,000, 
and a radical polymerizable compound. The radical polymerizable composition has a very stable electrocon­ductivity in air and can be molded into an optional shape.
Patent EP-0404169-A2 (EP)
Inventor: KASSECKER ROLF-RUEDIGER
IPC: B05C1/02
Filed: 1990-06-22
Abstract: The device is provided with a holder on which a stop is arranged which can be moved by means of said holder into a production line and which immediately carries out the coating of the edge. The device also has a coating device which coats the stop with coating material.
Patent EP-0413119-A2 (EP)
Inventor: ANDREE DIETRICH DIPL-ING
IPC: F16C19/52
Filed: 1990-07-03
Abstract: The invention relates to a centre open large rolling bearing (1) consisting of a single- or multi-piece outer ring (2) and inner ring (3) and rolling elements (10, 11, 12) arranged between them and rolling on tracks (4, 5, 6, 7, 8, 9), in which one ring (3/2) is designed to accommodate an ultrasonic probe and the other ring (2/3) has a coupling surface (19, 24, 25). To design such a bearing in such a way that simple and reliable ultrasonic measurement becomes possible, one or more revolving coupling surfaces (19, 24, 25) are arranged on one or more outer surfaces of the ring (2, 3) to be tested.
Patent EP-0411418-A2 (EP)
Title: Stabilisatordispersionen
Inventor: EICHENAUER HERBERT DR
IPC: C09K23/36
Filed: 1990-07-21
Abstract: Dispersionen von Stabilisatoren für Chemiewerkstoffe in Wasser, die als Hilfsemulgatoren spezielle Umsetzungsprodukte aus Diolen und Carbonsäureanhydriden enthalten und die sich durch einfache Herstellung, Stabilität und gute Wirksamkeit in Chemiewerkstoffen auszeichnen.
Patent EP-0410393-A2 (EP)
Inventor: VILLAMARIN ARTURO A
IPC: C08L83/05
Filed: 1990-07-24
Abstract: A novel composition useful to impart semi-permanent properties of conditioning, body and set holding, through repeated hair shampooing; comprising a blend of two reactive silicone polymers as oil-in-water emulsions in acid media, wherein the silicone polymers are a hydroxy terminated dimethyl polysiloxane having the general formula
       
 where n is not less than 500, 
and
       
 where n is from 15 to 50.
Patent EP-0431299-A2 (EP)
Inventor: KEELER R NORRIS
IPC: G01S17/89
Filed: 1990-10-25
Abstract: A two wavelength lidar imaging system for underwater applications is presented which employs image subtraction. More specifically, a two wavelength lidar system is presented wherein two substantially simultaneously timed laser pulses of different wavelengths are emitted and are expanded by optics to illuminate the water below. A framing camera is then gated to receive light reflected or scattered back from the water. The light backscattered is filtered through narrow pass filters before it is recorded at the gated cameras. A specific application is disclosed in which the lidar imaging system is used to detect the passage of internal waves or other anomalies appearing in the ocean.
Patent EP-0431365-A2 (EP)
Inventor: PIERCE BRIAN M
IPC: G01N22/00
Filed: 1990-11-15
Abstract: An apparatus for measuring the conductivity of a fluid is disclosed. The invention 10 provides both a contact and non-contact monitoring of fluid conductivity by measuring the A.C. dielectric properties of the fluid. The invention 10 transmits an electromagnetic wave into the fluid 22 and analyzes the transmitted and reflected waves providing an indication of the conductivity of the fluid 22. The invention 10 is versatile in that it allows for the fluid to be in the form of a spray. In a specific illustrative implementation, a novel nozzle is provided to monitor the conductivity of paint spray 22 as it passes therethrough.
Patent EP-0431394-A2 (EP)
Inventor: AIDAM ECKHARD
IPC: G01N7/00
Filed: 1990-11-20
Abstract: In the method of measurement, the gas to be determined is periodically heated in a measurement chamber. The periodic rise in pressure occurring in the measurement chamber is converted into an electrical alternating signal whose amplitude depends on the thermal conductivity of the gas. The method and the appropriately constructed measuring device are used, in particular, for determining the proportions of hydrogen or noble gases in nitrogen. <IMAGE>
Patent EP-0450170-A2 (EP)
Inventor: SPAENE RAINER
IPC: E21B37/06
Filed: 1990-12-13
Abstract: A well regeneration device is described with a rotatable regeneration unit, which can move upwards and downwards in a well shaft, for mechanical and hydraulic and/or chemical removal of deposits in the filter tube and/or filter chamber, the regeneration unit (1) being detachably attached to a drive and feed tube, being provided, at least in the area of its front end, with a brush head (2) having spring-mounted or rigidly attached brush strips (3) moveable in a radial direction and, moreover, being additionally provided with at least one flange-like displacement body (7) and high pressure jets (9) fed via the drive and feed tube (10). <IMAGE>
Patent EP-0420426-A2 (EP)
Inventor: PRIMEAUX II DUDLEY JOSEPH
IPC: C08G18/10
Filed: 1990-09-05
Abstract: Polyurea elastomers comprising an (A) component which includes an isocyanate, and a (B) component which includes (1) an amine-­terminated polyoxyalkylene polyol and (2) N,N′-bis(t-butyl) ethylenediamine as chain extender have such good flowability that they can be poured or sprayed.
Patent EP-0434203-A2 (EP)
Inventor: ROKOS GEORGE HEDLEY STORM
IPC: H03D7/14
Filed: 1990-11-09
Abstract: An arrangement for mixing r.f. signals with local oscillator signals wherein r.f. signals are fed to two separate balanced amplifiers (11,12) the outputs of which are fed to two separate balanced mixer stages (13,14) together with balanced local oscillator signals in quadrature, wherein the two outputs from each amplifier are fed one to each mixer stage.
Patent EP-0403432-A2 (EP)
Inventor: PFENNINGER JOHANNES DR
IPC: B05D5/06
Filed: 1990-06-06
Abstract: The coating compositions contain a resin binder system, coated mica particles and a manganese salt of an azo pigment. 
<??>Coating compositions of this type are particularly suitable for two-coat paint systems for automobiles. The finishes achieved using these systems, have good colour strength, high pearlescence and excellent general resistance properties.
Patent EP-0443535-A2 (EP)
Inventor: ICHIKAWA TOSHIYUKI
IPC: G03G15/08
Filed: 1991-02-19
Abstract: An electrophotographic printing apparatus comprises a photosensitive drum, an electrifying unit (4) for electrifying a surface of the photosensitive drum, an exposing unit (5) for selectively exposing the electrified surface of the photosensitive drum to form an electrostatic latent image, a developing unit (6) for developing the electrostatic latent image by feeding a developer which adheres to the surface of the photosensitive drum in accordance with the electrostatic latent image, a transferring unit for electrifying a sheet of paper to transfer the developed image to the paper sheet, a deelectrifying unit for removing unnecessary charges left in the surface of the photosensitive drum after the image transfer, thereby making the surface ready to be electrified again. The printing apparatus further comprises a temperature measuring unit (33) for measuring the environmental temperature of the photosensitive drum, and a control circuit (21, 22, 23) for detecting to which one of continuous temperature ranges the measured temperature belongs, and controlling the exposing unit (5) such that the amount of exposure is more decreased as the detected temperature range is higher, and the developing unit (6) such that the amount of feed is more decreased as the measured temperature is higher within the detected temperature range.
Patent EP-0474088-A2 (EP)
Inventor: HENKELMANN DIETER
IPC: G01R15/12
Filed: 1991-08-26
Abstract: In multimeters having several input circuits for different measurement variables, the user must pay great attention to the fact that the input circuits are not overloaded by a wrong measurement variable. …<??>To prevent operating errors, a relatively intelligent multimeter is created which first restricts itself to voltage measurements for which correspondingly insensitive input circuits are used. In this process, one or several voltage measurements are used for finding out whether a switching-over to a more sensitive input circuit predetermined by the measuring range switch (S) is permissible or not. …<IMAGE>…
Patent EP-0488394-A2 (EP)
Inventor: SHIGEHARA HIROSHI
IPC: H03K5/15
Filed: 1991-11-29
Abstract: Since the clocked inverter (12; 13; 14; 15; 16) operates during a predetermined period of time after the start of the oscillation, a feedback circuit is formed by the clocked inverter (12; 13; 14; 15; 16) and the inverter (20) at the start time of the oscillation. The oscillation circuit is therefore driven by a large amount of current and thus the oscillation start time can be shorten and the oscillation start voltage can be lowered. On the other hand, the oscillation circuit is driven only by the inverter (20) after starting the oscillation. Since a constant current means is inserted serially in the path of the power source of the inverter, the constant operating current always flows through the inverter (20) without being affected by the variations of the threshold voltage of the transistors and the variations of the power source voltages. As a result, a low consumption current characteristic of the oscillation circuit can be obtained under low power source voltage.
Patent EP-0481711-A2 (EP)
Inventor: TSUBOKURA AKIRA
IPC: C12R1/73
Filed: 1991-10-15
Abstract: A process for the production of an optically active 3-methyladipic acid represented by the formula (I):
       
 wherein the symol * represents an asymmetric carbon atom, comprising the steps of culturing a microorganism belonging to the genus  Candida  and capable of producing the optically active 3-methyladipic acid in a medium containing squalene, to produce an optically active 3-methyladipic acid; and recovering the optically active 3-methyladipic acid from the cultured product.
Patent EP-0487249-A2 (EP)
Inventor: KING MICHAEL
IPC: B29C49/00
Filed: 1991-11-12
Abstract: A sheet of material for forming the screen is mounted on a cylindrical forming drum and is blow formed, by hot air under pressure, to provide a projection screen. The resulting screen is curved along the width thereof and curved along the length thereof, and is formed from a single, continuous, sheet of material so that the screen is a stand-alone screen.
Patent EP-0486445-A2 (EP)
Inventor: CHIELLINI EMO
IPC: C08B37/16
Filed: 1991-11-13
Abstract: New functional derivatives of α, β and γ cyclodextrins obtained by grafting cyclodextrin with epoxides of protected polyols and epoxides containing water soluble substituents such as 2-pyrrolidonyl groups. The reaction products have a degree of substitution per glucose residue between 0 and 1. Selective removal of protecting groups from cyclodextrin substituents, carried out under conditions that do not affect the integrity of cyclodextrin ring, gives rise to hydrosoluble cyclodextrine derivatives whose hydropilic/hydrophobic balance can be modulated by controlling the extent of deprotection. Said compounds can be used for the preparation of adducts with biologically active synyhetic and natural hydrophobic molecules, to be utilized for the preparation of drugs, vaccines, phytodrugs.
Patent EP-0495374-A2 (EP)
Inventor: GRIMM HERMANN DIPL-ING FH
IPC: B65D51/16
Filed: 1992-01-08
Abstract: The venting device consists of a pipe nozzle (14) which is welded to the container wall (11) of a container (10) and onto which a screw cap (50) is screwed. Combined with this screw cap (50) is an excess pressure valve which is formed by a cylindrical portion (52) of the cap (50) with radial bores (54a, b) which are closed under normal pressure by a tensioned annular element (55) made of rubber-elastic material. To protect the inside region of the pressure compensating device from splashing in the region of the annular element (55), the pipe nozzle (14) is covered by a flat ring (16a) as a safeguard against gushing. <IMAGE>
Patent EP-0504744-A2 (EP)
Inventor: HARA DAIJI
IPC: C08F10/00
Filed: 1992-03-12
Abstract: A method for producing a stereospecific polyolefin in the presence of a catalyst comprising a transition metal compound and an organometallic compound, wherein a catalyst system is used which comprises: (A) a solid catalyst component prepared by reacting (i) a homogeneous solution prepared by reacting (i-1) magnesium and a hydroxylated organic compound, (i-2) an oxygen-containing organic compound of titanium and/or (i-3) an oxygen-containing organic compound of silicon, with an oxygen-containing organic compound of aluminum and/or a boron compound, with (ii) at least one aluminum halide compound to obtain a solid product, reacting to this solid product (iii) an electron-donative compound and (iv) a titanium halide compound to obtain a solid component, and further reacting to this solid component (v) silicon tetrachloride and/or an alkyl-substituted product of silicon tetrachloride, (B) at least one member selected from the group consisting of organometallic compounds of Groups IA, IIA, IIB, IIIB and IVB of the Periodic Table, and (C) an electron-donative compound.
Patent EP-0504866-A2 (EP)
Inventor: FLORO WILLIAM E
IPC: G06F3/08
Filed: 1992-03-19
Abstract: A programmable controller is customized for a specific application by a function card (30) inserted into a socket of a processor module (20) on the controller. The function card (30) can perform one or more tasks and may be used with different types of programmable controllers. Before the card (30) can be used by a given programmable controller an initialization procedure must be performed to determine if the processor module (20) and the card (30) are compatible. As part of this procedure information about the operation of the given programmable controller is sent to the card (30). The card (30) also contains functional information for each of its tasks the card (30) provides. The functional information is sent to the processor module (20) during the initialization procedure to enable the module (20) to utilize the card (30).
Patent EP-0511577-A2 (EP)
Inventor: MOLIERE THOMAS DIPL-ING
IPC: H04B1/38
Filed: 1992-04-21
Abstract: A portable radio transceiver with retractable or foldable rod antenna (2; 2') and additional integrated auxiliary antenna (7; 7') which, when the rod antenna is retracted or folded, ensures at least emergency operation of the set. The integrated antenna is constructed on a conical housing projection (6), the internal space of which is connected to the receiving space (5) for accommodating the retracted or folded rod antenna. The part (4) of the rod antenna which is located in the said housing projection (6) when the rod antenna is retracted or folded over consists of insulating material so that it then does not impair the operation of the integrated antenna (6; 6'). When the rod antenna is pulled out or folded out, the feed section (3) arranged at its base is located within the housing projection (6) so that it detunes the integrated antenna (7) to such an extent that it cannot exert any interfering influence. <IMAGE>
Patent EP-0521266-A2 (EP)
Inventor: HALEMEIER ECKEHARD
IPC: F21V19/00
Filed: 1992-05-12
Abstract: Halogen lamp having a housing (12), a reflector (30) inserted detachably into a housing opening, a holder (40; 102), separate from the reflector and arranged detachably in the housing behind the reflector, for the halogen lamp (44) and electrical terminals (74; 126) for the holder, characterised in that the holder (40; 102) is retained on a support (38; 100) having the terminals (74; 126) with the aid of fastening means (72; 110,112,118) which can be detached working from the housing opening, and is electrically connected to the terminals via contact pairs (72,74; 124,128) which separate from one another upon detachment of the fastening means. <IMAGE>
Patent EP-0499403-A2 (EP)
Inventor: KIKUCHI HIROAKI
IPC: H01L21/74
Filed: 1992-02-06
Abstract: In an npn silicon bipolar transistor, a hole (109) is formed only in that portion of an n-type epitaxial layer (103) formed on an n⁺-type buried layer (102) where an n⁺-type collector region (110) is to be formed, and this specific portion of the n-type epitaxial layer is made thinner. A p-type base region (111) and n⁺-type emitter region (112) are then formed. The hole (409; Fig. 25) may be lined with an insulating film (413), and silicon grown in the hole and made n⁺-type to form the n⁺-type collector region (410). The resistance of the n⁺-type collector region can be lower without causing misfit dislocation in the n⁺-type collector region, thus providing a high-speed npn silicon bipolar transistor with a suppressed leak current.
Patent EP-0499412-A2 (EP)
Inventor: OHKI MITSUHARU
IPC: G06F7/52
Filed: 1992-02-07
Abstract: A serial-input-output multiplier circuit comprises calculating circuits (3) for calculating a partial product of one number and another number, a plurality of full adders (2) supplied at input portions thereof with the one number serially through the calculating circuits (3), unit delay elements (5) for supplying carry outputs of the plurality of full adders (2) to the input portions of the full adders (2), and variable delay circuits (9) for supplying sum outputs of the full adders (2) of more significant digits to the input portions of the full adders (2) of less significant digits, wherein a product of one number and the other number is serially obtained as a sum output of the full adder (2) of the least significant digit.
Patent EP-0506278-A2 (EP)
Inventor: RAWSON III FREEMAN LEIGH
IPC: G06F13/10
Filed: 1992-03-16
Abstract: A device driver system comprises a core that manages the specific functions of a plurality of I/O devices. The core includes an operating system interface that is generic to different operating systems. An operating system has a device driver interface that is unique to the operating system. A conversion program is layered between the core and the operating system for converting communications between the device driver interface of the operating system and the generic operating system interface of the core. The core includes a channel manager including a request dispatcher, request queues, a command initiator, and a plurality of state machines corresponding to state machine in the I/O devices. A transport layer interfaces between the hardware and the channel manager.
Patent EP-0515189-A2 (EP)
Inventor: WASON CAMERON B
IPC: G01V1/36
Filed: 1992-05-21
Abstract: Coherent and incoherent noise in seismic signal data are attenuated by transforming the data using a diversity Radon transform from the first domain to a Radon-transform domain, wherein the transforming step further comprises the steps of:
     (a) determining scaler data;   (b) multiplying the data by the scaler data to produce scaled data;   (c) transforming the scaler data and the scaled data into the Radon transform domain; and   (d) dividing the Radon transformed scaled data by the Radon transformed scaler data; and     
 attenuating the coherent and incoherent noise in data in the Radon transform domain
Patent EP-0526132-A2 (EP)
Inventor: LEVY SIDNEY
IPC: H01R11/24
Filed: 1992-07-24
Abstract: A test probe device (10) is attachable to alligator clips (18) of test equipment for establishing electrical engagement between an electrical contact (60) supported within an insulative housing, which is accessible through an opening (56) therein and the test equipment. The alligator clip (18) includes a pair of actuatable jaws (38, 40) defining a connection region (42) therebetween. The test probe device (10) includes an elongate probe member (14) insertable into the housing through the opening (56) for electrical engagement with the contact (60). An attachment member is electrically coupled to the probe member. The attachment member (12) is attachable to the alligator clip (18) at a location remote from the connection region thereof, permitting the alligator clip (18) to be used without removing the test probe device (10).