baber/WOPTO huggingface dataset:
Patent EP-0394739-A2 (EP)
Inventor: AHNE HELLMUT DR
IPC: G03F7/09
Filed: 1990-04-10
Abstract: A process for the lithographic transfer of structures using a two-layer resist system is proposed in which the bottom resist in the regions uncovered between a top resist structure are rendered etch-resistant to a dry etching process by chemical treatment with a liquid-phase reagent. In this way an etching mask for the subsequent dry etching process in which a negative image of the top resist structure is produced is generated in the uncovered regions of the bottom resist, preferably by silylation. Various parameters of the chemical treatment are used to control the process in such a way that a precise 1:1 structure transfer from the mask to the wafer is produced.
Patent EP-0408031-A2 (EP)
Inventor: HOSHI SATORU
IPC: G11C11/417
Filed: 1990-07-12
Abstract: In a data read circuit for a semiconductor storage device, data of a memory cell (11) selected according to an address is inputted to a sense amplifier (22) via a pair of complementary first data lines (N1 to N6). The sense amplifier outputs the inputted and amplified data to a pair of complementary second data lines (N7, N8). First switching means (Tr3) equalizes the pair of complementary first data lines (N5, N6) at the input side of the sense amplifier (22) by making the first data lines conductive with respect to each other. Second switching means (Tr4) equalizes the pair of complementary second data lines (N7, N8) by making the second data lines conductive with respect to each other. Third switching means (Tr5, Tr6) equalizes by making the pair of first data lines (N5, N6) at the input side of the sense amplifier (22) and corresponding ones of the pair of second data lines (N7, N8) conductive with respect to each other. Second equalizing pulse generator means (42) generates a second equalizing pulse (φ eq ′) when the address is changed, and turns on the first switch means (Tr3) by applying the second equalizing pulse to a control terminal of the first switch means. First equalizing pulse generator means (41) generates a first equalizing pulse (φ eq ) when the address is changed, and turns on the second and third switching means (Tr4, Tr5, Tr6) by applying the second equalizing pulse to gate terminals of the second and third switching means. The load capacitance [C(φ eq ′)] connected to an output terminal of the second equalizing pulse generating means (42) is set smaller than the load capacitance [C(φ eq )] connected to an output terminal of the first equalizing pulse generator means (41). The number of stages of logical circuits constituting the second equalizing pulse generator means (42) is smaller than the number of stages of logical circuits constituting the first equalizing pulse generator means (41). Accordingly, with this data   read circuit for a semiconductor storage device, the second equalizing pulse (φ eq ′) from the second equalizing pulse generator means (42) is established earlier than the first equalizing pulse (φ eq ) from the first equalizing pulse generator means (41).
Patent EP-0436775-A2 (EP)
Inventor: LUKAS RUDOLF
IPC: C08F259/00
Filed: 1990-07-12
Abstract: The invention relates to polymers and copolymers on the basis of cationically polymerizable monomers; which may be obtained by the following method with a new initiation system: 
(co)polymerization of one or more cationically polymerizable monomers in the presence of an initiation system comprising
     (A1) a polymer, an oligomer and/or a low-molecular weight alkyl halide, comprising at least 5 carbon atoms and at least one chlorine atom bond to a secondary carbon atom, 
and/or   (A2) a polymer, an oligomer and/or a low-molecular weight alkyl halide, comprising at least 4 carbon atoms and at least one halogenatom bond to a tertiary carbon atom,     
 and
   (B) SnCl₄, eventually in admixture with FeCl₃ and/or BCl₃, at a molar ratio of the Lewis acid(s) to the monomer(s) of 10⁻⁵ to 50, at -100 to +20 °C, optionally in a polar halogenated solvent. Suitable monomers are isobutene, 1-butene, isoprene, 1,3-butadiene, 2,3-dimethyl-1,3-butadiene, styrene, α-methylstyrene, 1,3-pentadiene and chloroprene.
Patent EP-0419785-A2 (EP)
Inventor: KESTING LORENZ
IPC: E04C1/40
Filed: 1990-07-18
Abstract: In polystyrene concrete for precast concrete units which, in addition to cement and aggregate, contain granules of foamed polystyrene to save weight, it is proposed according to the invention to admix alkaline textile fibres to the Styropore concrete in the starting mixture in order to limit cracking during the manufacture of precast concrete units. <IMAGE>
Patent EP-0410452-A2 (EP)
Inventor: SATO TAKASHI C O PAT DEP HAMUR
IPC: G06F17/00
Filed: 1990-07-26
Abstract: A data totaling apparatus processes table data and the like. Items are set, and attribute data are designated in the respective items. When data are input to a certain item, processing such as arithmetic operation, sorting, totaling, display control, or input control is performed in accordance with attribute data set in the item.
Patent EP-0413292-A2 (EP)
Title: Apparatus for metering an elongate stringer chain
Inventor: HORITA YOSHIYUKI
IPC: A44B19/42
Filed: 1990-08-13
Abstract: A method of and an apparatus for metering an elongate stringer chain (C) to be finished into slide fasteners of different lengths, the metering being based on an element pitch P derived from dividing a given metering length L by the number of coupling elements (E) thereon. The stringer chain (C) is held substantially in tensionless suspension while it is being metered to achieve a maximum of metering accuracy.
Patent EP-0414158-A2 (EP)
Inventor: LAGONI WILLIAM ADAMSON
IPC: H04N5/20
Filed: 1990-08-18
Abstract: In a color television system, the color signals produced by a luma-chroma IC (154) are summed (171,173,175,177) to produce a signal representative of processed luminance information not otherwise readily available. Pulses of the summed signal corresponding to retrace blanking pulses contained in the color signals, are stripped away in order to reduce errors when attributes of the. summed signal are determined, e.g., by an average detector (183). The detector provides a control signal for modification of a luminance signal, such as by "white stretch" (136).
Patent EP-0418637-A2 (EP)
Inventor: LUNZ ALFRED-GUENTER
IPC: H01H43/02
Filed: 1990-09-04
Abstract: The invention is based on a switch for a switch clock module as is described in DE-OS 3,743,214. In order to design the operation of this switch such that it is flexible for different installation variants of the switch clock module, a pot-shaped switching ring is provided which surrounds the switching disc and interacts by means of a groove with a switching cam of the displaceable switching slide of the switch. This switching ring supports an operating tab and, basically, can maintain any desired installed position in the complete circumferential region of the switching disc. <IMAGE>
Patent EP-0421245-A2 (EP)
Inventor: BOHN JOSEF
IPC: H02M3/335
Filed: 1990-09-25
Abstract: The switching transistor (TS) of a DC converter is controlled by a bistable multivibrator (FF1) which is set by clock pulses and is reset by a first comparator (K1) when the current through the switching transistor (TS) exceeds a signal corresponding to the difference between the output voltage (UA) of the converter and a first reference voltage (UR1). A signal corresponding to the current through the switching transistor (TS) and, on the other hand, a reference signal (UR1) are likewise supplied to a second comparator (K2). If the current through the switching transistor (TS) exceeds a predetermined value, the clock pulses are switched over to a lower frequency. The invention is used in switched-mode power supplies. <IMAGE>
Patent EP-0422611-A2 (EP)
Inventor: TERASHITA TAKAAKI
IPC: G03B27/73
Filed: 1990-10-10
Abstract: An exposure controlling apparatus includes a sensor for effecting photometry by separating light from an original picture into a plurality of separated components; a storage device for storing a value concerning the spectral sensitivity of the sensor and a value concerning the spectral sensitivity of a copying sensitive material to be copied; an estimating device for estimating a spectral characteristic of the original picture on the basis of a photometric value of the sensor and the value concerning the spectral sensitivity of the sensor stored in the storage device; and a controller for determining a synthetic value which is equivalent to a value measured by a sensor having a spectral sensitivity distribution identical with or similar to a spectral sensitivity distribution of the copying sensitive material on the basis of the spectral characteristics of the original picture estimated and the value concerning the spectral sensitivity of the copying sensitive material, and for controlling exposure amount on the basis of the synthetic value. Accordingly, it is possible to control exposure amount by estimating the spectral characteristics of the original picture even from photometric values obtained by effecting photometry by separating the light into components having a wide half-­width.
Patent EP-0428109-A2 (EP)
Inventor: VEMISHETTI PURUSHOTHAM
IPC: C07H19/16
Filed: 1990-11-12
Abstract: There is disclosed a process for synthesizing 2′-­fluoro-2′,3′-dideoxyarabinofuranose derivatives of inosine and adenine on a large scale which involves coupling of a fluorosugar derivative and a purine reactant to provide a purine nucleoside intermediate which is then deoxygenated. 6-Chloro or 6-benzamidopurine and 1,3,5-tri-O-benzoyl-2-­deoxy-2-fluoroarabinofuranose are used as starting materials.
Patent EP-0433679-A2 (EP)
Inventor: INOUE JUN
IPC: A61K31/535
Filed: 1990-11-19
Abstract: Presented are pharmaceutical compositions comprising in admixture with a carrier a compound of;
     (a) the formula (I) or a pharmaceutically acceptable salt thereof:
      wherein R₁ and R₂ are each hydrogen, methyl, trifluoromethyl, carboxy, methoxycarbonyl or ethoxycarbonyl, and R₃ is hydrogen or hydroxy;   (b) the formula (I) or a pharmaceutically acceptable salt thereof:
      wherein R, R₂ and R₃ are as defined;   (c) the formula (III) or a pharmaceutically acceptable salt thereof:
      wherein R₄ and R₅ are each hydrogen or form, by incorporation of C₁ and C₂ carbon atoms, a condensed [2.1-b] pyridine ring optionally substituted with a hydroxyl group or a carboxyl group, and R₆ is hydrogen or hydroxy; or   (d) the formula (IV) or a pharmaceutically acceptable salt thereof:
      wherein R₄, R₅ and R₆ are as defined.   
     The compositions are used to inhibit Maillard's reaction in human body, the reaction which may be responsible for the development of diabetic complications and age-associated disorders. Methods of treatment and prophylaxis of such complications and disorders are also presented.
Patent EP-0435100-A2 (EP)
Inventor: TAKENAKA SHINYA C O OSAKA WORK
IPC: G06K7/10
Filed: 1990-12-13
Abstract: A symbol reader for reading symbols on a symbol surface. An optical system including a laser, condensing lens and a scanning mirror illuminate a symbol surface to be read with a laser beam, scanning across the symbol surface. A transducer measures the amount of light reflected from the symbol surface. A differential circuit develops a differential coefficient indicative of the change of light intensity as light scans the symbols being read. A control system adjusts the optical system illuminating the symbol surface so as to maximize the differential coefficient, thereby minimizing the diameter of the light beam to allow for adequate reading at variable distances.
Patent EP-0436229-A2 (EP)
Inventor: CANN KEVIN JOSEPH
IPC: C08F4/68
Filed: 1990-12-28
Abstract: A vanadium-based catalyst system is treated with an ether as a means of enhancing catalyst activity and polymer productivity.
Patent EP-0380322-A2 (EP)
Inventor: SAKIYAMA HAJIME
IPC: H01S5/223
Filed: 1990-01-24
Abstract: This invention is directed to a semiconductor laser having a multi-layer construction characterised in that a first upper portion cladding layer (5) is a double layer construction, the upper layer portion (5b) is higher in carrier concentration than the lower layer portion (5a). Consequently the series resistance component is restrained, so that the sequential direction voltage V F  may be lowered without damaging the other characteristics such as the oscillation start current I th and so on.
Patent EP-0420379-A2 (EP)
Inventor: SHIRATA AKIHIRO
IPC: F02P19/02
Filed: 1990-03-30
Abstract: An engine preheating system preheats an engine such as a diesel engine efficiently and quickly with heating mem­bers such as self-temperature-controlling glow plugs. When the engine is to be preheated quickly, a voltage to be applied to the heating members is increased by electric energy stored in a capacitor capacitors, and a large current is supplied to the heating members to preheat the engine in a short period of time.
Patent EP-0419132-A2 (EP)
Inventor: CHANDRARATNA ROSHANTA A S
IPC: B01J27/185
Filed: 1990-09-13
Abstract: A process is disclosed for the preparation of disubstituted acetylene derivatives having retinoic acid like biological activity, wherein 6-ethynyl-chroman, 6-ethynyl-thio chroman and 6-ethynyl-1,2,3,4-tetrahydroquinoline derivatives of the formula shown below are reacted in the presence of catalysts with halogenated phenyl or heteroaryl derivatives of the formula shown below to provide the disubstituted acety­lenes. 
     In the formulae the symbols have the following meanings, R₁, R₂, R₃, R₄ and R₅ are hydrogen or lower alkyl groups (of 1-6 carbons) where R₁, R₂, R₃, R₄ and R₅ may be identical or different from one another) X is S, O or NR′ where R′ is hydrogen or lower alkyl, Z represents hydrogen, or a metal ion capable of forming a salt with the ethynyl moiety of the molecule, X′ is a leaving group such as a halogeno group, A is phenyl, or heteroaryl such as pyridinyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl or oxazolyl, n is an intetger between 0 to 5, and B is H, -COOH or a pharma­ceutically acceptable salt, ester or amide thereof, -CH₂OH or an ether or ester derivative, or -CHO or an acetal derivative,   or -COR₁ or a ketal derivative where R₁ is an alkyl, cycloal­kyl or alkenyl group containing 1 to 5 carbons.
Patent EP-0419174-A2 (EP)
Inventor: SAKA YOSHIAKI
IPC: G06F9/22
Filed: 1990-09-17
Abstract: A data processing apparatus includes a microinstruction memory (5) which stores microinstructions, and a microinstruction execution unit (7) which executes a selected one of the microinstructions by a pipeline process and which outputs an operation result. The microinstructions include a specific microinstruction (Mb1, Mb2). The data processing apparatus also includes a correction part (7; 105, 107; 205, 207) which has the microinstruction execution unit execute the specific microinstruction when a predetermined event occurs so that the parameter is changed to a corrected parameter which corresponds to a parameter used in an immediately previous pipeline process. The microinstruction execution unit stops operating when the predetermined event occurs and starts the operation again by using the corrected parameter.
Patent EP-0429219-A2 (EP)
Inventor: ASTHANA RAHUL
IPC: G02B27/42
Filed: 1990-11-07
Abstract: An improved apparatus and method for detecting the polarization state of an optical wavefront is disclosed, which is especially suitable for use in an integrated magneto-optic recording head. An optically transparent waveguide structure (10) transmits TE and TM modes of the wavefront propagated as a beam coupled into the waveguide by a TE/TM grating coupler (16). In the waveguide structure is a periodic structure (21) comprising a birefringent mode separator that splits the propagating beam into TE and TM modes. The mode separator comprises an array of uniformly spaced volumes of identical configuration. Photosensitive devices (13,14) detect the intensity of the light contained within each of the separated beams. The signals from these photosensitive devices are used to determine the state of polarization of the optical wavefront. 
     The periodic structure may, if desired, comprise regions of alternating birefringence, such as a Bragg grating, either in a waveguide layer or a cladding layer. Focal power is introduced (1) by providing focal power in the input grating coupler to the waveguide with a curved grating structure, (2) by varying the pitch of the birefringent mode separator extending in a direction transverse to the optical axis of the propagating beam, or (3) by introducing a surface grating with a varying pitch in a direction transverse of the optical axis.
Patent EP-0427561-A2 (EP)
Inventor: KUBO MASAO JEUNET-PALACE
IPC: B05D3/12
Filed: 1990-11-09
Abstract: A bent metal body with a resin coating is fabricated by first applying a powder coating composition to a metal body to form a hardenable resin layer, then bending the metal body bearing the resin layer, and then hardening the hardenable resin layer to form the resin coating.
Patent EP-0437103-A2 (EP)
Inventor: FINKELSTEIN JOSEPH ALAN
IPC: C07D233/90
Filed: 1990-12-27
Abstract: Angiotensin II receptor antagonists having the formula :
       
 which are useful in regulating hypertension and in the treatment of congestive heart failure, renal failure, and glaucoma pharmaceutical compositions including these antagonists, and methods of using these compounds to produce angiotensin II receptor antagonism in mammals.
Patent EP-0427632-A2 (EP)
Inventor: MARSHALL JOHN D
IPC: G06M1/26
Filed: 1990-11-08
Abstract: A bi-directional snap-action register mechanism for an odometer-type mechanical register display. The mechanism includes at lease one register display wheel (61) and a bi-directional cam (17) mounted coaxially along a common shaft (1) with the register display wheel. The bi-directional cam (17) engages a helical groove (15) formed along the shaft to allow lateral displacement of the bi-directional cam in a direction parallel to a rotational axis of the shaft (1). A pin (i4) is biased by a spring into contact with the bi-directional cam. Rotation of the shaft causes the bi-directional cam to be moved with respect to the pin. The cam abruptly rotates through a predetermined angular distance when the point of contact of the biased pin with the cam moved from a smooth portion to a step transition portion of the cam. The abrupt rotation of the cam is communicated to the register display wheel to cause a new display position to be moved into view.
Patent EP-0394216-A2 (EP)
Inventor: HEISS MICHAEL DIPL-ING DR
IPC: F02D41/34
Filed: 1990-04-17
Abstract: A method for the open-loop and closed-loop control of an internal combustion engine (1) in which a digital binary output signal (b) is calculated in a computing device as a function of operating variable signals, such as for example the engine speed (n), the accelerator position, the engine temperature etc., said calculated binary signal is converted into an actuation signal (s) which consists of pulses of a constant amplitude, the overall duration of the actuation signal within a clock period being proportional to the value of the binary signal and this actuation signal being used to control an electromechanical actuator. In this process, the actuation signal is divided up within each clock period depending on the value of the binary signal (b) into individual pulses whose overall duration is proportional to the value of the binary signal (b) and the individual pulses are distributed essentially evenly within each clock period. In addition, a device for carrying out the method is disclosed. <IMAGE>
Patent EP-0446703-A2 (EP)
Title: Verfahren zur Herstellung von Dialkylzinndichloriden
Inventor: RUF ERICH DR
IPC: C07F7/22
Filed: 1991-02-27
Abstract: Verfahren zur Herstellung von Dialkylzinndichloriden, deren Alkylgruppen jeweils 1 bis 22 Kohlenstoffatome aufweisen, mit dem Kennzeichen, daß man Trialkylaluminium langsam zu einer Lösung von Zinndiacetatdichlorid in Tetrahydrofuran im Molverhältnis von etwa 2 : 3 zugibt, das im Verlauf der Umsetzung ausfallende Aluminiumtriacetat abfiltriert und das als Lösungsmittel verwendete Tetrahydrofuran abdestilliert.
Patent EP-0450469-A2 (EP)
Inventor: HIRAI MUTSUMI C O NIPPON NUCLE
IPC: G21C3/62
Filed: 1991-03-26
Abstract: The present invention provides improved nuclear fuel pellets having high thermal conductivity for use in an LWR. This can be achieved by creating a continuous deposition phase of high-thermal conductivity substances in the grain boundaries in the pellets. As a result, the temperature in the center of the fuel rod can be significantly reduced, and the discharge amount of gases generated on the nuclear fission can be efficiently reduced. 
     The present invention also provides a method of manufacturing the above-described nuclear fuel pellets.
Patent EP-0456202-A2 (EP)
Inventor: KINNEY PATRICK
IPC: G01N21/956
Filed: 1991-05-08
Abstract: A particle monitor for a processing chamber exhaust line (16A-16B) is disclosed which incorporates exhaust line heating (40), purge gas flow over surfaces such as optical windows (e.g. 36) in the exhaust gas line, and a thermally and electrically insulating particle monitor mounting arrangement (43). The features collectively protect the particle monitor from electrical disturbance and from the heated inlet and maintain the optical surfaces clean and free of depositions from the exhaust gas flow for an extended period. The arrangement also suppresses etching of the optical surfaces.
Patent EP-0487819-A2 (EP)
Inventor: ELSNER MATTHEW
IPC: G11C11/401
Filed: 1991-06-06
Abstract: A video random access memory (VRAM) includes a dynamic random access memory (DRAM) array and a serial access memory (SAM) connected to bi-directional random and serial ports. The SAM provides the capability for partial but aligned data transfer or mask write back of data from an external source for subsequent partial write operations in the DRAM array. These sources include color registers, on-chip arithmetic logic unit (ALU) output, or the random port. Partial but aligned transfers from the SAM to the DRAM array are accomplished by a data transfer into a selected row between two specified column addresses of the DRAM array. Alternatively, a masked write back into a row of the DRAM array is based on mask register contents. Improved serial access memory data input operation for DRAM array is accomplished by means of a source of "0s" or "1s" for a clear operation, providing a page mode fill from the RAM port or an on-chip ALU, and providing a color register load or based on random port input data. In addition, the use of a mask register for partial write back into a row also enhances serial access memory data input operations to the DRAM array. In one modification, a second SAM connected to a second bi-directional serial port is provided. The second SAM is connected to the first SAM to transfer data therebetween in parallel.
Patent EP-0472106-A2 (EP)
Inventor: SASAKI MITSUHIRO
IPC: B41M5/382
Filed: 1991-08-14
Abstract: A pulverulent ink comprising in the structure a heat-fusible core comprising a thermo-melting substance and a coloring matter and a shell covering the core on the surface and comprising a resin product obtainable by reacting:
     (1) 0 to 30 mole % of a monovalent isocyanate compound and/or a monovalent isothiocyanate compound and   (2) 100 to 70 mole % of a divalent isocyanate and/or a divalent isothiocyanate compound with   (3) 0 to 30 mole % of a compound having an active hydrogen atom to react with the isocyanate and isothiocyanate groups of (1) and (2) and   (4) 100 to 70 mole % of a compound having two active hydrogen atoms to react with the isocyanate and isothiocyanate groups of (1) and (2); at a molar ratio of (1) and (2) to (3) and (4) in the range between 1:1 and 1:20, at least 30 percent of all the linkages involved in the isocyanates and the isothiocyanates in the resin product being thermally dissociating. The powder ink is advantageously used in a method for printing an image on a substrate, which comprises forming an image by a thermally transferring printing method and reproducing an ink sheet with electrostatic energy.