baber/WOPTO huggingface dataset:
Patent EP-0372252-A2 (EP)
Title: Verfahren zur Herstellung von hochmolekularen, gegebenenfalls verzweigten polyarylensulfiden
Inventor: SCHMIDT MANFRED DR
IPC: C08G75/025
Filed: 1989-11-10
Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung von hochmolekularen, gegebenenfalls verzweigten Polyarylensulfiden mit einem geringen Gehalt an organisch gebundenem Halogen. Sie werden in einem polaren, organischen Lösungsmittel durch Umsetzung von Alkalisulfiden und/oder Alkalihydrogensulfiden mit Dihalogenaromaten hergestellt.
Patent EP-0376185-A2 (EP)
Inventor: IWAOKA TOMOYASU
IPC: C07D213/82
Filed: 1989-12-22
Abstract: A novel process for purifying crude 1,2-­bis(nicotinamido)propane obtained by the reaction of nicotinic acid with 1,2-propanediamine. This process comprises forming 1,2-bis(nicotinamido)propane dinitrate from the crude 1,2-bis(nicotinamido)propane, suspending the dinitrate in an organic solvent, adding an alkali or an alkaline solution to the suspension to dissociate the free 1,2-bis(nicotinamido)propane, extracting it from the suspen­sion with a solvent, and removing the solvent to isolate the purified product. 
     According to this process, crude 1,2-­bis(nicotinamido)propane can be efficiently purified to give the product having a high purity.
Patent EP-0323870-A2 (EP)
Inventor: GURCAN MUSTAFA KUBILAY
IPC: H04B3/06
Filed: 1989-01-04
Abstract: A signal equalising arrangement comprises a decision feedback equaliser formed by a feedforward filter section (16) connected to a feedback filter section (18) which includes a decision stage (20). If the performance of the equalising arrangement as determined by the signal to noise ratio versus the bit error rate is found to be below the calculated optimum performance of the decision feedback equaliser, then an improved performance may be obtained by operating the equaliser in a time reverse mode. In order to operate the equaliser in a time reverse mode, a first last-in, first-out store (60) is connected in the signal path to the feedforward filter section (16) and a second last-in, first-out store (62) is connected to the output of the decision stage (20).
Patent EP-0333252-A2 (EP)
Inventor: FERRARIS GIAMPIERO
IPC: H05K3/42
Filed: 1989-03-06
Abstract: A process is described for making metallized holes in a dielectric substrate (1) which, after galvanic growth of the conductive paths (6, 7) delimited by photoresist (5) on the substrate (1), calls for a drilling phase of the substrate (1) and electrogalvanic creation of rivets (11) protruding beyond the edges of the holes (9) on the front of the substrate (1). Then follow the phases of completion of the conductive and resistive paths (13, 14; 15, 16) on the front, deposition of metals (17) on the back, reinforcement of the rivets (11) and galvanic growth of the back and of the metals (17) deposited inside the holes (9).
Patent EP-0337737-A2 (EP)
Inventor: MAREK MIROSLAV
IPC: C08F240/00
Filed: 1989-04-11
Abstract: The method consists in the polymerization of olefins with a prevailing content of 1-butene and cis- and trans-2-butenes in the mixture of hydrocarbons known as rafinate II, which is derived from the C₄-fractions after separation of 1,3-butadiene and isobutylene, under initiation with boron trifluoride (BF₃) or alkylaluminium chlorides with the general formulae R₂AlCl and RAlCl₂ (in which each R represents a C₁ to C₆-alkyl group) in the presence of hydrogen chloride (HCl), hydrogen fluoride (HF), or organic compounds with a reactive chlorine or fluorine bonded to a tertiary-, benzyl- or allyl-carbon atom, as coinitiators. 
     The method according to the solution may be carried out in such a way, that rafinate II derived from the production of methyl tert-butyl ether or from the selective polymerization of isobutylene, in which 1-butene present in a concentration at least 20% is polymerized together with cis- and trans-2-butenes   present in a concentration of at least 15%, at a temperature of +100°C to -70°C, to form to oily products with molar mass  M   n  = 300 to 1200. Preferably the mixture derived as rafinate II from the production of methyl tert-butyl ether is first freed of methanol to the content lower than 300p ppm.
Patent EP-0341836-A2 (EP)
Inventor: BARFORD ERIC DENNIS
IPC: C11D3/04
Filed: 1989-04-13
Abstract: A solid lavatory cleaning block is formed of a composition comprising a mixture of (A) a surface active component comprising one or more anionic surface active agents: (B) a chlorine release agent component consisting of one or more chlorinated cyanuric acid derivatives: and (C) a source of barium, cadmium, calcium, copper, iron, magnesium, manganese or nickel ions.
Patent EP-0340942-A2 (EP)
Inventor: HARDING WARREN BRUCE
IPC: G06F3/06
Filed: 1989-04-20
Abstract: A peripheral data storage hierarchy includes three storage levels. The top storage level is a fast accessing direct access storage device(s), such as magnetic disk drives. The intermediate level is an automatic warehouse type library, storing a large plurality of optical disks, which are automatically transferred between storage cells of the library and optical disk drives operatively connected to the host processor. The bottom level of the storage hierarchy includes one or more stand-alone optical disk drives and a shelf unit. Personnel manually carry the the optical disks between the stand-alone drives and the shelf unit upon mount and demount commands received from a host processor. The intermediate library level uses the same type of optical disk as used in the bottom level of the data storage hierarchy. An IO station in each of the automatic libraries enable manual access to the optical disk for transferring same between the intermediate and bottom levels. Preferably, the transfer is only from the intermediate level to the bottom level. Access to named storage objects in disks stored in the bottom level are through the stand-alone drives. A host processor has an independent access path to each level of the data storage hierarchy. A directory and other data structures indicate the number of copies made of each named data object and the location of such copies, such that the host processor 10 can independently access a copy from any level of the data storage hierarchy.
Patent EP-0351048-A2 (EP)
Inventor: RAMASWAMY SESHADRI
IPC: G11B5/187
Filed: 1989-06-02
Abstract: Recording head to optimize high density recording by reduction of hooks on ends of transitions, the recording head having at least two poles with a gap section inbetween and configured with the second pole and gap section being greater in width than the first pole. Transverse field components are reduced at the head fringes and the transition becomes substantially parallel to gap. The vertical components of the head field are also minimized. Method for producing head with narrow first pole includes planarization of first pole area to receive wider gap layer and wider second pole.
Patent EP-0346105-A2 (EP)
Inventor: STIRLAND SIMON JOHN
IPC: H01Q19/19
Filed: 1989-06-07
Abstract: A spacecraft antenna system has feed means, preferably two separate feeds (6,7), a single shaped main reflector (3) and at least two, preferably two, shaped sub-reflectors (4,5) which are operable simultaneously to provide coverage to or from more than one coverage area. One sub-reflector (4,5) thus covers one specific coverage area.
Patent EP-0358480-A2 (EP)
Inventor: TANAKA YASUO MITSUBISHI GAS CH
IPC: H05K3/46
Filed: 1989-09-06
Abstract: A process for producing a multilayer printed wiring board, characterized in that copper surface of internal layer(s) is chemically oxidized, thereby forming a brown or black, oxidized copper surface on the internal layer board; and said oxidized copper surface of said internal layer board is treated with an acidic aqueous solution of a reducing agent containing at least one material selected from the group consisting of zinc formaldehyde sulfoxylate and sodium hypophosphite.
Patent EP-0377300-A2 (EP)
Inventor: TAJIMA YUSUKE
IPC: H03H21/00
Filed: 1989-12-20
Abstract: An input propagation lumped element network (41) has a frequency response selected from responses consisting of a band pass filter response, a low pass filter response, and a high pass filter response, and an output propagation network (44) has a frequency response selected from the group of frequency responses consisting of a low pass frequency response, a high pass frequency response, and a band pass frequency response. Weighting means (42) comprising a plurality of field effect transistors (FET1-FET5) are used to successively couple the input propagation network (41) and the output propagation network (44). By using lumped element filter networks (41, 44), the general shape or response of the transversal filter (51′) is provided by choosing the characteristics of the input and output propagation networks (41, 44) in relation to the desired filter response. With the general shape provided by the propagation networks (41, 44) rather than by the transversal elements (FET1-FET5), fewer transversal elements are required in the transversal filter (51′) to provide a desired response. Thus, the transversal filter has a physically smaller size than a conventional transversal filter, thereby increasing the manufacturability of the circuit and reducing the cost of the circuit particularly when said circuits are fabricated as monolothic microwave integrated circuits. For transversal filters having a bandpass characteristic, harmonic sub-bands generated at high frequencies are eliminated by use of lumped element networks having cutoff frequencies coinciding with the frequency skirts or bandedges of the filter. In a recursive filter (Fig. 11), one or more of the transversal elements (FET1-­FET5) are replaced by recursive elements (RR2) such as resistors providing feedback connectors between the output and input networks (44, 41).
Patent EP-0354181-A2 (EP)
Inventor: BAUMANN DIETER
IPC: C08G18/58
Filed: 1989-07-26
Abstract: The present invention relates to activated curing combinations for organic cationically polymerizable materials. The curing combinations are obtainable by activating a solution or a dispersion of an iron/arene salt and a polycarboxylic acid, an anhydride based on a polycarboxylic acid, or a polyisocyanate by heating or by irradiation with actinic radiation. The curable compositions containing these activated curing combinations can be used as sheathing or encapsulating materials for electronic components.
Patent EP-0392137-A2 (EP)
IPC: G09F3/20
Filed: 1990-01-17
Abstract: The invention relates to a holding structure for exchangeable information supports having an attachment part for fixture to edge regions of shelves, containers and the like. The information supports are situated in a receiving pocket which is formed from a rear wall and a transparent front wall. The rear wall and front wall are connected to one another in an articulated manner at their base and the upper edge of the rear wall overlaps the free edge of the front wall in the form of a cover. The fixture of the holding structure (1) to the attachment part (3) is effected via an intermediate piece (2) fitted with catch elements (22, 23, 24, 25). The intermediate piece (2) is in engagement with catches (1221, 1231) constructed on the reverse side of the rear wall (12). The catches (1221, 1231) can engage in each case in associated receptacles of the catch elements (22, 23, 24, 25), by which means the holding structure can be used in defined angular positions relative to the attachment part (3).
Patent EP-0398110-A2 (EP)
Inventor: KACZMARCZYK EDWARD TED
IPC: E02F3/36
Filed: 1990-05-07
Abstract: An attachment device for attaching supplementary tools (50) in a tiltable manner to at least one boom (22) of a loader (10), in which means for a permanent attachment by assembly or means for rapid coupling can alternatively be exchanged one for the other, has a tilting axis, formed by a pivot (32), between boom (22) and supplementary tool (50), the relative position of which is roughly maintained irrespective of the choice between a permanent attachment or quick coupling. Irrespective of the type of attachment, certain points of the supplementary tool (50) thus maintain their position relative to the boom (22) so that the effective dimensions and characterising constructional features of loader (10) and supplementary tool (50) remain unchanged. 
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Patent EP-0414001-A2 (EP)
Inventor: POPALL MICHAEL
IPC: C04B35/00
Filed: 1990-07-31
Abstract: A process for the photoinitiated control of inorganic network formation in the sol-gel process is described in which either   A) one or more hydrolytically polycondensable compounds of elements which form glass or ceramics, with the exception of silicon compounds containing polymerisable organic groups, is (are) subjected to hydrolytic polycondensation in a liquid reaction medium to form a sol, and the resultant sol is irradiated, in the presence of a photoinitiator which is able to modify the pH of the reaction medium on irradiation, with radiation having a wavelength in the range in which the photoinitiator absorbs, in a structured or unstructured manner, or B) water is liberated in an anhydrous, alcohol-containing reaction medium which contains one or more hydrolytically polycondensable compounds of elements which form glass or ceramics, and a photoinitiator which is able to liberate water on irradiation by means of a photochemical reaction or a subsequent reaction, by structured or unstructured irradiation with radiation having a wavelength in the range in which the photoinitiator absorbs, and the hydrolytic polycondensation is thus effected. c
Patent EP-0414108-A2 (EP)
Inventor: GRASSER GUENTER DIPL-ING
IPC: G06F7/52
Filed: 1990-08-14
Abstract: A combined array for multiplication and division is built up from array cells arranged in n rows and m columns and n edge cells arranged at the edge of the array. The array cell construction corresponds to that of a division array cell. The addition of the number "0" of a row, which is necessary in a multiplication by "0", is effected by   1) switching over the multiplexer of the array cell and thus by gating out the addition and 2) gating out the overflow of the row by means of a logic circuit in the edge cell.   A multiplexer in the edge cell of each row controls the selection for multiplying or dividing and ensures that, on the one hand the multiplier or the overflow drives the multiplexer of the array cell. <IMAGE>
Patent EP-0423661-A2 (EP)
Inventor: WILLIAMS ROGER O
IPC: G11B5/55
Filed: 1990-10-15
Abstract: A dual magnetic head (10) having a first magnetic core (30) for reading and writing very high track density floppy disks and a second magnetic core (34) for reading and writing conventional track density floppy disks. Neither the first nor the second magnetic cores require the trim erase elements associated with prior art magnetic cores for use with floppy disks. When writing on conventional track density floppy disks, separation between data tracks is achieved by erasing a circular region (142) on a first rotation of the floppy disk, erasing a second region (143), separated from the first region by a small gap, on a second rotation of the floppy disk, and writing data during a third rotation of the floppy disk centered about the small gap. With very high density floppy disks, data is written directly between (50) optical servo tracks (48) on the floppy disk without use of the two erase steps.
Patent EP-0435045-A2 (EP)
Inventor: FISCHER FRANK DIPL-ING UNIV OF
IPC: B32B7/025
Filed: 1990-12-08
Abstract: A novel method of making a half-finished product is described, in which the welding of electrically conducting and non-conducting plastic layers is achieved by the Joulean heat of an electrically conducting layer after applying a corresponding voltage. The novel method has advantages due to the fact that it dispenses with complex, fault-prone heating devices and can be used within broad limits.
Patent EP-0387071-A2 (EP)
Inventor: FALCK JOHN BELLEW
IPC: G06K7/00
Filed: 1990-03-08
Abstract: Pulses of a carrier signal supplied to an input (400) of a codable electronic device, e.g. a transponder tag, are divided by a chain (134) to provide a logic signal (A o ), the value of which depends on the length of the pulse, the logic signal only being entered into a data storage means (SR1,SR2,SR3,520) upon termination of the pulse. The logic signal is entered by a reset signal (R) from output (440) of the input.
Patent EP-0392666-A2 (EP)
Title: Anti-HIV compositions
Inventor: MURRER BARRY ANTHONY
IPC: A61K31/28
Filed: 1990-03-14
Abstract: Compounds which are cyclic amines having a 12 to 20 membered ring and having from 3 to 5 amino groups in the ring, and their complexes and protected forms are active against retroviruses, and may be used in pharmaceutical compositions to treat infected patients or patients at risk.
Patent EP-0414404-A2 (EP)
Inventor: BARNES ANDREW C
IPC: C12R1/645
Filed: 1990-08-06
Abstract: Disclosed is a process for encapsulation of biologicals. Specifically, microbes which have produced useful proteins, which are maintained intracellularly, are stabilized by treatment of the intact microbe with organic acids, inorganic acids, or oxidixing agents.
Patent EP-0430402-A2 (EP)
Inventor: GRAY JOE W
IPC: G01N33/58
Filed: 1990-08-08
Abstract: Methods and compositions for staining based upon nucleic acid sequence that employ nucleic acid probes are provided. Said methods produce staining patterns that can be tailored for specific cytogenetic analyses. Said probes are appropriate for in situ hybridization and stain both interphase and metaphase chromosomal material with reliable signals. The nucleic acid probes are typically of a complexity greater than 50 kb, the complexity depending upon the cytogenetic application. Methods and reagents are provided for the detection of genetic rearrangements. Probes and test kits are provided for use in detecting genetic rearrangements, particularly for use in tumor cytogenetics, in the detection of disease related loci, specifically cancer, such as chronic myelogenous leukemia (CML) and for biological dosimetry. Methods and reagents are described for cytogenetic research, for the differentiation of cytogenetically similar but genetically different diseases, and for many prognostic and diagnostic applications. Further provided is a method of preparing and applying chromosome-specific single-stranded nucleic acid probes to double stranded target DNA.
Patent EP-0422916-A2 (EP)
Inventor: NAGATA YUJI
IPC: G11B5/39
Filed: 1990-10-10
Abstract: In a magnetoresistive head capable of performing favorable magnetic recording and reproduction, an overlap amount (OV1) of a front yoke (25) and a magnetoresistive element (23) is always greater than an overlap amount (OV2) of a back yoke (26) and the magnetoresistive element (23). Generally, the magnetoresistive head varies in its reproduction efficiency by the overlap amount of the yoke and magnetoresistive element. In particular, the reproduction output is significantly affected by the overlap amount (OV1) of the front yoke and magnetoresistive element, and when the overlap amount of the front yoke becomes smaller than the overlap amount (OV2) of the back yoke, the reproduction output tends to decrease abruptly. Therefore, by keeping the overlap amount of the front yoke always greater than the other, a stable reproduction output can be achieved. In particular, an outstanding effect is obtained in a multi-channel magnetoresistive head containing multiple magnetoresistive elements in one head.
Patent EP-0435450-A2 (EP)
Inventor: DUROSS JAMES WIX
IPC: A61K9/68
Filed: 1990-11-22
Abstract: A pharmaceutical composition comprising a crystalline sugar alcohol derived from at least one mono- or polysaccharide having uniformly dispersed within its crystal matrix particles of at least one pharmaceutically active compound is disclosed. Also disclosed is a method of producing such a uniformly dispersed pharmaceutical composition by the controlled crystallization of the molten sugar alcohol having the pharmaceutically active material dispersed therein.
Patent EP-0425426-A2 (EP)
Inventor: URI NETA
IPC: G01N21/87
Filed: 1990-10-25
Abstract: A method of identifying a gemstone, particularly a diamond by: exciting the gemstone to cause it to emit luminescence radiation according to a luminescence spectrum unique to the respective gemstone, in which the luminescence intensity uniquely varies as a function of wavelength; measuring the level of the luminescence radiation at a plurality of preselected wavelengths of its luminescence spectrum; and utilizing the levels of the luminescence radiation at the preselected wavelengths to identify the respective gemstone and to distinguish it from other gemstones.
Patent EP-0456265-A2 (EP)
Inventor: EKHOLM RALF
IPC: B66B1/18
Filed: 1991-05-10
Abstract: Procedure for selecting an elevator in a group consisting of elevators (2-7) serving the floors (K1-K18) of a building (1), each floor being provided with call input devices (11-14) for the input of calls, said elevator group having a group control unit (21,22) controlling the group and provided with at least one computer. On the basis of the call sent by a call input device, the group control unit finds out which call input device has been used for issuing the call and selects one of the elevators (2-7) serving the floor in question on the basis of the passengers' positions on the landing as determined from the information thus obtained.
Patent EP-0464684-A2 (EP)
Inventor: GALIMBERTI MAURIZIO
IPC: C08F210/06
Filed: 1991-06-27
Abstract: Essentially syndiotactic crystalline copolymers of propylene with minor proportions of 1-butene, endowed with good mechanical properties, lowered melting point and limited solubility in xylene at 25°C and the process for their preparation by polymerizing mixtures of propylene with 1-butene, by using catalysts obtained from stereorigid and chiral zirconium and hafnium compounds and from polymethylalumoxane compounds.
Patent EP-0470429-A2 (EP)
Inventor: GRAFE HORST
IPC: B21D43/28
Filed: 1991-07-23
Abstract: The hitherto known devices for shifting and adjusting driving rollers, carried by tubular spars, for conveying sheets, in particular in shears for trimming and/or dividing the sheets longitudinally or transversely, are relatively complicated in their construction and are not always reliable in operation due to incipient rust etc. on the numerous exposed shifting and adjusting elements. The invention provides a device of the abovementioned type which is very simple in construction, is protected from incipient rust etc. and is always reliable in operation, this being achieved by the fact that the shifting elements consist of wedges (16, 17) which are arranged displaceably within the end plate (11) and are in operative connection with the adjusting elements (20, 21). <IMAGE>
Patent EP-0469578-A2 (EP)
Inventor: NODA YASUSHI CITYPAL-SHINSAWAD
IPC: H01H1/02
Filed: 1991-07-31
Abstract: A method for forming an electrical contact material comprises the steps of melting a mixture of Cu-Cr into a molten alloy, atomizing the molten alloy into fine particles to obtain alloyed particles. Cr particles in the alloyed powder disintegrate to less than 5 µ m in mean particle diameter. The alloyed powder is sintered thereafter and a mean particle diameter of chromium in the sintered article is fined in a range of 2 to 20 µ m. An electrical contact material is composed of a copper matrix and chromium particles having a mean particle diameter of 2 to 20 µ m. The chromium particles are homogeneously dispersed in the copper matrix.