baber/WOPTO huggingface dataset:
Patent EP-0423100-A2 (EP)
Inventor: RAZAVI ABBAS
IPC: C08F114/06
Filed: 1990-10-09
Abstract: Syndiospecific catalysts and processes for the syn­diotactic propagation of a polymer chain derived from an ethyle­nically unsaturated monomer which contains 3 or more carbon atoms or is a substituted vinyl compound. The catalysts comprise unba­lanced stereorigid metallocenes in which a structural bridge is not required for stereorigidity. The ring structures of the metallocene catalyst are substituted cyclopentadienyl rings, which are sterically different from one another. The substituent groups on the cyclopentadienyl rings impart stereorigidity to the catalyst by virtue of a sterically hindered relationship between the rings sufficient to prevent rotation of the rings, or by vir­tue of the cyclopentadienyl groups being at a low kinetic energy state induced by the substituents to prevent rotation of the rings about their coordination axes at the temperature of the catalyst. The catalyst is contacted with a C 3⁺  alpha olefin or other ethylenically unsaturated compound in a polymerization reaction zone and maintained in contact with the catalyst in the reaction zone under polymerization conditions to produce a syn­diotactic polymer.
Patent EP-0464556-A2 (EP)
Inventor: YAMAZAKI TATSUYA
IPC: H01S5/042
Filed: 1991-06-24
Abstract: There is disclosed a light source driving apparatus provided with a light generating unit including a light source (1) and emitting a light component polarized in a predetermined direction and another light component polarized in the perpendicular direction in varying ratio depending on the total emitted light output; a light splitter (3) for splitting the two polarized components in different splitting ratios into first and second light paths; a photodetector (5) for detecting the light intensity in the first light path; and a control (6,7,8) unit for controlling the light generating unit (1) so as to maintain the light intensity in the second light path at a predetermined state, based on the detection output of the photodetector.
Patent EP-0464721-A2 (EP)
Inventor: WAKABAYASHI TSUTOMU
IPC: G03B7/24
Filed: 1991-06-28
Abstract: A camera, capable of loading a cartridge (1) housing a film which is provided with image recording areas (2a) and a magnetic recording area (2b) in which plural sets of a same magnetically recorded information are consecutively recorded along the longitudinal direction, is provided with a film feeding device for effecting a pre-winding operation for winding the film in the loaded cartridge to the end onto a winding spool prior to the photo-taking operations; a magnetic head (10) capable of being contacted with or separated from the magnetic recording area of the film and reading the magnetically recorded information in the contacted state; a contact/separating mechanism (16) for contacting or separating the magnetic head with or from the magnetic recording area of the film; and controller for controlling the contact/separating (16) mechanism so as to contact the magnetic head with the magnetic recording area (2b), in the course of the pre-winding operation, for a period which is shorter than the time required from the start to the end of the pre-winding operation but is enough for reading at least a set of the magnetically recorded information.
Patent EP-0468277-A2 (EP)
Inventor: SEIFAHRT HORST DR
IPC: B23K35/30
Filed: 1991-07-10
Abstract: Ein Werkstoffgemisch besteht aus mindestens zwei metallischen Komponenten unterschiedlicher Eigenschaften auf Nickel-Basis mit Zusätzen von bis zu 21 Gew.-% Chrom und einem Gesamtzusatz von bis zu 21 % der Elemente B, Si, Fe dessen Komponenten nach verschiedenen Verfahren hergestellt worden sind. Dabei soll ein Gesamtzusatz von bis zu 21 % der Elemente B, Si, Fe, Mo, W vorgesehen werden. Dieses Werkstoffgemisch besteht zumindest aus einer pulverförmigen Komponente und wenigstens einer strangförmigen Komponente, bevorzugt einer querschnittlich gekrümmten Folie oder Platte als -- die pulverförmige Komponente umgebende -- strangförmige Komponente.
Patent EP-0466144-A2 (EP)
Inventor: ONO TAKEO
IPC: H01S5/12
Filed: 1991-07-10
Abstract: An optical semiconductor device with wavelength selectivity comprises a substrate (21), a collector layer (22) provided on said substrate and composed of a semiconductor having a first conductive type, a multiple quantum well layer (23) provided on said collector layer, a base layer (24,25,26) provided on said multiple quantum well layer (23) and composed of a semiconductor having a second conductive type, said base layer consisting of an active layer (25), and first and second semiconductor layers (24,26) with said active layer sandwiched and having a wider band gap than said active layer, said base layer (24,25,26) and said multiple quantum well layer (23) propagating the light, an emitter layer (27) provided on said base layer and composed of a semiconductor having the first conductive type, and a collector electrode (30), a base electrode (29,29') and an emitter electrode (28) electrically connected to said collector layer (22), base layer (24,25,26) and emitter layer (27), respectively.
Patent EP-0492111-A2 (EP)
Inventor: NOLTE HEINZ
IPC: G05D7/01
Filed: 1991-11-12
Abstract: A flow controller (1) possesses, inside a housing (2), a regulating core (3) provided on the outside with control grooves (9), around which core is arranged, at a distance, an elastomeric control element (4) designed as an annular body. This control element (4) is supported in the flow direction on an annular shoulder (5). The control element (4) contracts approximately radially inwards as a function of the pressure prevailing on the inflow side and on the outflow side or of the pressure difference resulting therefrom, and thus influences the passage cross-section bounded by the inside of the control element (4). The control element (4) possesses, in the passage gap (11), a comparatively long annular flat face (6) which is adjoined by a conical inlet portion (7) in the inflow direction. The control element (4) protrudes inwards with its radially inner bearing face beyond the annular-shoulder inner edge (8) facing it. <IMAGE>
Patent EP-0492748-A2 (EP)
Inventor: PREKER FRIEDRICH
IPC: H04M1/02
Filed: 1991-11-11
Abstract: In order to design the apparatus as a desktop unit for the office and also as an easily transportable unit in the field of mobile telecommunications, it is proposed that at least one part (6) of the housing can be swung open, pivoted towards the housing base (11) round a pivot axis (9) running transversely through the housing (1) at one housing end (8), locked and unlocked again, the pivoting flap (10) serving in its open position as a standing support (12) for the upright-positioned housing (1) and in its closed position as a guard (16) for the operating side (2). <IMAGE>
Patent EP-0447204-A2 (EP)
Inventor: MODY RUSTOM K
IPC: E21B33/127
Filed: 1991-03-13
Abstract: An inflatable packing element (10) for an inflatable packer or bridge plug utilized in subterranean wells comprises a tubular elastomeric sleeve (30) which is surrounded by a plurality of circumferentially overlapping flexible metal ribs (12). The opposite ends of the ribs (12) are respectively welded to an external surface provided on a force transmitting sleeve (14). The sleeve (14) is provided with a shoulder (14a) having an abutting relationship with an internally projecting shoulder (20a) provided on the tubular mounting structure (20) for the inflatable element (10).
Patent EP-0454405-A2 (EP)
Inventor: SADLER ALAN ARTHUR
IPC: G02B6/46
Filed: 1991-04-23
Abstract: A duct is provided for receiving an optical fibre member by blowing. The duct is formed at least in part of a plastics material which is electrically conductive or has electrically conductive material such as carbon black held therein or has an electrically conductive material applied thereto. Preferably the duct has a radially inner layer defining an inside wall of the duct and at least one further layer positioned outwardly of the inner layer, the inner layer being formed of the plastics material which is electrically conductive or has electrically conductive material held therein or had an electrically conductive material applied thereto.
Patent EP-0455458-A2 (EP)
Inventor: APPELT MARIAN R
IPC: C09J133/04
Filed: 1991-04-29
Abstract: A crosslinked, acrylate-based pressure-sensitive adhesive is provided to obtain a creep compliance value of the pressure-sensitive adhesive of between 1.1 x 10⁻⁵ cm²/dyne to about 2.3 x 10⁻⁵ cm² /dyne in the presence of alcohol-based excipients, such as ethanol serving as a solvent or a penetration enchancing agent used with transdermal delivery devices. The method of preparing such crosslinked pressure-sensitive adhesive by using electron beam radiation of from 5 kGy to 200 kGy, and medical articles using the crosslinked pressure-sensitive adhesive as a layer therein to contact skin are also provided.
Patent EP-0461885-A2 (EP)
Inventor: YAMAMOTO TAKASHI
IPC: G03F1/62
Filed: 1991-06-12
Abstract: A pellicle film comprises a resin that is preparable by reducing a polyvinyl acetal of the formula:
       
 wherein R is a C₁₋₃alkyl group and the vinyl acetate content y/(x+y+z) is not larger that 1.0 (e.g. 0.1) and the degree of acetalization x/(x+y+z) is at least 0.6. 
     This pellicle film exhibits a reduced UV absorption in the vicinity of 365 nm and may be durable against irradiation with UV rays, especially i-line of a mercury arc light.
Patent EP-0478346-A2 (EP)
Inventor: PROKOP PATRICIA A
IPC: H04N1/32
Filed: 1991-09-27
Abstract: A system state controller (160) for an electronic reprographic system to balance system resources in accordance with demand when processing jobs. A controller includes plural discrete job processing virtual machines (168, 174, 178, etc.) with each of the virtual machines having at least one service (170, 176, 180, etc.) associated with it for implementing the virtual machine, each of the services having at least one of the system hardware and software components for carrying out the service. A scheduling means (210) sets priorities for carrying out the virtual machines to process job requests in an efficient manner.
Patent EP-0493125-A2 (EP)
Inventor: IRIKAWA MICHINORI THE FURUKAWA
IPC: H01S5/223
Filed: 1991-12-27
Abstract: A semiconductor laser device according to the invention comprises a semiconductor substrate (11), a multilayered double heterostructure having an active layer (14) and formed on said substrate (11) and a ridge waveguide further comprises a current blocking layer (12) formed between the semiconductor substrate (11) and the active layer (14). With such an arrangement, electric current is narrowed not only on the side of the ridge of the active layer (14) but also on the substrate side of the active layer to improve its current confinement effect. When the two lateral trenches of the ridge are embedded with resin layers (19), the ridge strip width can be made narrow to improve the heat conductance capability of the device. When the active layer (14) is realized in two discrete layers and a DCC structure having an intermediary clad layer is sandwiched therebetween, the device will show a low threshold current level, a minimum ϑ¦/ϑ ratio and stabilized thermal characteristics.
Patent EP-0490836-A2 (EP)
Inventor: BEGHELLI GIAN PIETRO
IPC: H05B37/02
Filed: 1991-12-06
Abstract: An improvement in independent emergency lighting systems which, through the use of an appropriate microprocessor, can be used to centralize not only the data relative to the non-exclusive functional diagnosis of the connected equipment, but also the data detected by the environmental sensors incorporated into the equipment itself.
Patent EP-0534131-A2 (EP)
Inventor: WIEDER ARMIN DR
IPC: H01L21/8242
Filed: 1992-08-19
Abstract: On an insulating layer (12) which is disposed on a substrate (11) made of single-crystal silicon, there is disposed, between source region and drain region (14), a channel region (13) made of doped, single-crystal silicon. On the surface of the channel region (13) there is disposed a gate dielectric (15) carrying a gate electrode (16). The length of the channel region (13) between the source region and the drain region (14) is substantially equal, in terms of magnitude, to the thickness of the channel region (13) between the insulating layer (12) and the gate dielectric (15). In particular, the channel region (13) has a length of from 15 nm to 100 nm. <IMAGE>
Patent EP-0530623-A2 (EP)
Inventor: MOGI TAKAYUKI
IPC: H01L27/10
Filed: 1992-08-21
Abstract: The SCR type memory apparatus of the invention is short in access time, the current values upon reading and writing are easy to set and the construction of a peripheral circuit becomes simple with less power supply voltage limitation. The apparatus comprises a basic cell circuit with a SCR type memory cell (21) including a pair of pnp transistors and a pair of double emitter transistors and a pair of write npn transistors (23) in addition. The collector of each of the write npn transistors is connected to a voltage holding node (22) of the SCR type memory cell (21) and the bases are connected to a word selecting line (UWL).
Patent EP-0539760-A2 (EP)
Inventor: ROTH DIETER DIPL-PHYS
IPC: H01Q21/00
Filed: 1992-10-02
Abstract: For the vertical and the horizontal polarisation, a circulator (10, 19) is in each case provided at the radiator element connection (11, 20), to which circulators in each case a low-noise amplifier (15, 16) is connected in the receiving path and in each case a high-power amplifier (8, 9) is connected in the transmitting path so that two separate polarisation receiving channels, exhibiting in each case one low-noise amplifier (15, 16), and two separate polarisation transmitting channels, in each case exhibiting a high-power amplifier (8, 9), are obtained which are then brought to in each case one polarisation change-over switch (5, 14), the switching-over arms of which are then connected to the receiving contact or, respectively, the transmitting contact of the transmit/receive switch (3). The module according to the invention can be used, for example, in phase-controlled antennas for a synthetic aperture radar. 
<IMAGE>
Patent EP-0543380-A2 (EP)
Inventor: CORTELLINI EDMUND A
IPC: C09K21/04
Filed: 1992-11-19
Abstract: A hard protective and thermally conductive refractory coating composition initially applied by painting or spraying onto and which bonds to metallic boiler tubes at low temperatures and useable to a maximum temperature of about 1000°C, comprises 70-90% by weight of refractory grain less than 44 microns, 2-10% by weight of clay, 2-15% by weight of a phosphate binder and 1-5% by weight of a flux all mixed with sufficient water to reach the desired consistency for the type of application.
Patent EP-0508587-A2 (EP)
Inventor: FREDHEIM ROBERT
IPC: G01V1/20
Filed: 1992-03-04
Abstract: A tension relieving device for seismic cables or cable sections comprises a stretch element (4) which is passed in loops between two end pieces (1, 2) which are designed to be attached to end contact pieces on the seismic cable. The stretch element (4) forms at least two loops defining at least four lengths (8) in the longitudinal direction of the device. The loops are passed through holes (6) and curved, tubular guides in the end pieces (1, 2). On their lengths (8), the stretch elements (4) are provided with stoppers (10) with diameters greater than the holes (6) in the end pieces (1, 2). In the central area of the end pieces (1, 2) between the stretch element guides, a preferably central opening (9) is made to allow the cable's wires etc. to pass through.
Patent EP-0524029-A2 (EP)
Title: Hand held bar code reader
Inventor: CHANDLER DONALD G
IPC: G06K7/10
Filed: 1992-07-20
Abstract: A hand-held bar code reader with a two dimensional image sensor for omnidirectional bar code reading, includes variable imaging optics (10A, 10B), and flash illumination with variable flash illumination optics (18, 20). A spotter beam (26) is provided for aiming the hand held bar code reader at a bar code symbol. The spotter beam (26) is also used to measure the range to said bar code from said hand held bar code reader and to determine the focal length of said variable imaging optics (10A, 10B) and variable flash illumination optics (18, 20). The imaging optics (10A, 10B) are adjusted automatically to provide the correct magnification and focus of a bar code regardless of range to the label. The variable focal length flash illumination optics (18, 20) are used to concentrate illumination energy only in the field of view of the bar code reader. The flash illumination energy is conserved by measuring the ambient light and setting the level of flash illumination energy in accordance with the measured level of ambient light. In such manner, conventional, damaged, multiple, and stacked bar codes symbols along with true two dimensional codes may be rapidly read over distances from under one foot to over several feet without having to align the bar code reader to the bar code.
Patent EP-0539056-A2 (EP)
Inventor: LUETTGEN MICHAEL JOHN
IPC: B60R16/02
Filed: 1992-10-05
Abstract: A hermetically sealed automotive module (10) is disclosed wherein a cover (16) of the module is sealed to a housing (12) of the module (10) by vibration welding. A weld contact surface (62) is defined between the cover (16) and housing (12) of the module (10) when the cover and housing undergo relative reciprocating motion under the application of a force. A method for hermetically sealing a module is also disclosed.
Patent EP-0549346-A2 (EP)
Inventor: TOYODA HIDEKI
IPC: G01L9/08
Filed: 1992-12-23
Abstract: A piezoelectric sensor for an internal combustion engine having a hollow main body (1) is adapted to be mounted on a cylinder head of the engine. The hollow main body is provided with a metal diaphragm (6) tightly fixed to the open one end thereof for receiving a pressure generated within the cylinder, and contains a detector means which comprises a piezoelectric element (11) of LiNbo₃ single crystal piezoelectric material for generating an electrical signal corresponding to the pressure in the cylinder, a member (7) for transmitting the pressure from the diaphragm (6) to the piezoelectric element (11) and pressurising means (15) for applying a pressure of 5 MPa or more to the piezoelectric element (11).
Patent EP-0509886-A2 (EP)
Inventor: INADA HIROSHI
IPC: H01L39/24
Filed: 1992-04-09
Abstract: A process for patterning layered thin films comprising a bottom oxide superconductor (1) layer deposited on a substrate (3 ) and another thin film (2) deposited on the bottom superconductor layer and consisting of insulator, ordinary conductor or oxide superconductor having a different crystal orientation from the bottom superconductor layer. The bottom superconductor layer (1) is subjecting to heat-treatment before another thin film (2) is deposited thereon. The heat-treatment can be carried out under a first condition in ultra high-vacuum at a temperature which is lower than the oxygen-trap temperature (T trap ) at which oxygen can enter into the oxide superconductor but is higher than a temperature which is lower by 100 °C than the oxygen-trap temperature (T trap  - 100 °C) or under a second condition in an atmosphere containing oxygen of high purity at a temperature which is higher than the oxygen-trap temperature (T trap ) but is lower than a film forming temperature of the first thin film of oxide superconductor.
Patent EP-0563705-A2 (EP)
Inventor: KRAEMER THOMAS DR
IPC: A61K31/415
Filed: 1993-03-19
Abstract: Cycloalkyl- and heterocyclyl-substituted imidazolylpropenoic acid derivatives can be prepared by reaction of imidazolylaldehydes with appropriate carboxylic acid derivatives and subsequent dehydrogenation. The compounds can be employed as active ingredients in medicaments, in particular for the treatment of hypertension and atherosclerosis.
Patent EP-0568035-A2 (EP)
Inventor: SUGAWARA TOORU
IPC: A61K8/00
Filed: 1993-04-28
Abstract: A cosmetic composition comprising an aqueous polymer emulsion in an amount of from 1 to 60% by weight in terms of the weight of solid contents of the cosmetic composition. The aqueous polymer emulsion is produced by polymerizing at least one polymerizable monomer having a double bond in the presence of a plasticizer or a film-forming auxiliary. This aqueous polymer emulsion ensures in the cosmetic composition excellent gloss, film stability, water repellency, and film-forming properties, and also ensures freedom from cosmetic crumbling due to sweat and sebum.
Patent EP-0584762-A2 (EP)
Inventor: HESS THOMAS DR
IPC: B09B1/00
Filed: 1993-08-23
Abstract: The invention relates to an arrangement for removing infiltration water from gas collection wells in refuse dumps (landfill sites) with a wellhead, equipped with a drainage connection and a gas removal connection, the arrangement being designed to receive a drainage pump in the interior of the well. The invention combines the features   a) that a drainage-pump drive unit is arranged outside the well, remote from the gas-carrying parts of the arrangement, and thus outside the explosion-prone regions, b) that the drainage pump is arranged so as to be stationary in the well interior, however dismantling is possible at any time, c) the drainage pump and the drive-energy transmission devices between the drive unit and drainage pump are, in the regions in contact with the landfill gas, free of spark-generating parts.   In this arrangement, the drainage pump is preferably a jet pump known per se without moving metallic parts, which receives its drive energy, via a drive-flow line, from a remotely arranged drive-flow pump and removes the sucked-up landfill infiltration water and, if appropriate, condensation, via a drainage flow line. <IMAGE>
Patent EP-0589349-A2 (EP)
Inventor: HURLEY JAMES DR
IPC: C08L77/00
Filed: 1993-09-16
Abstract: The use of thermoplastic polyamide (nylon) moulding compositions containing   A) 40 - 99.7% by weight of a polyamide having a viscosity index of >/= 250 ml/g,   B) 0.3 - 3% by weight of an olefin polymer built up from   b1) 40 - 99.8% by weight of at least one  alpha -olefin having 2 - 8 carbon atoms, b2) 0.2 - 20% by weight of an ethylenically unsaturated mono- or dicarboxylic acid or a functional derivative of such an acid,   C) 0 - 50% by weight of fibrous or particulate fillers, or mixtures thereof, D) 0 - 30% by weight of conventional additives and processing auxiliaries, for the production of mouldings by blow moulding, profile extrusion and/or tube extrusion.
Patent EP-0554021-A2 (EP)
Inventor: BULLOCK ANDREW GEORGE
IPC: G01R31/08
Filed: 1993-01-22
Abstract: A circuit for use in the detection and location of a fault of faults in a device under test (85) comprising: a first port (51) to which is connected the device under test (85) for fault detection and location; a second port (53) to which is connected a signal source (87) which generates a plurality of signals of different frequencies which extend over the frequency range over which it is required that the device under test (85) operate satisfactorily; a divider (55 or 119) for dividing each signal generated by the source (87) thereby to provide first and second fractions thereof, the second fraction passing to the device under test (85); a fault detection section (57) for providing in respect of each of said frequencies a fault detection voltage for use in the detection of the fault or faults; and a branch (59, 63) including a fault location section (59), said branch (59, 63) receiving said first fraction, said fault location section (59) providing in respect of each of said frequencies a fault location voltage for use in the location of the or each fault.