baber/WOPTO huggingface dataset:
Patent EP-0444501-A2 (EP)
Inventor: BEGLEY WILLIAM JAMES C O EASTM
IPC: C07D257/04
Filed: 1991-02-19
Abstract: Photographic compound (A) capable of releasing a photographically useful group is represented by the formula: SOL-CAR-LINK-PUG wherein SOL is a water-solubilizing group; CAR is a carrier moiety that, upon reaction with oxidized developing agent, is capable of releasing LINK-PUG and capable of forming a compound that is washed out of the photographic element during photographic processing; LINK-PUG is in turn capable of releasing a photographically useful group (PUG) during photographic processing and LINK-PUG is represented by the formula:
       
 wherein X, R₁, R₂, R₃, R₄ and PUG are as defined in the application. The photographic compound (A) enables formation of easily removable compounds in photographic elements and processes that provide images having improved acutance.
Patent EP-0446903-A2 (EP)
Title: Automatic travelling apparatus
Inventor: ISHIDA SHINNOSUKE C O K K HOND
IPC: H04N7/18
Filed: 1991-03-13
Abstract: Disclosed is an automatic travelling apparatus which is capable of taking an image of an area ahead of a vehicle in its running direction by an image pick-up device (1) fixed to the vehicle; determining (3), by processing (2) the taken image, a permissible travelling area in a X-Y coordinates having the Y-axis corresponding to the axis of the vehicle's running direction; setting (4) a target course in the determined permissible travelling area; estimating a steering amount necessary for permitting the vehicle to follow the target course on the basis of the detected running condition of the vehicle; and steering (9,10) the vehicle to follow the target course with reference to the steering amount; and also is capable of determining a side-slip angle of the vehicle and turning any one of patterns - image, permissible travelling area and the target course - by the determined side-slip angle to coincide the actual running direction of the vehicle with the direction of the Y-axis.
Patent EP-0456132-A2 (EP)
Inventor: MORITA NOBORU
IPC: G01R19/04
Filed: 1991-05-03
Abstract: A system for detecting a voltage and/or current of a single phase and/or polyphase alternating current comprises a sample-hold circuit for detecting and holding instantaneous values of a plurality of sampling points at a fixed time period of the alternating current as sampled values, respectively, a first calculation circuit for calculating the real part and the imaginary part of the Fourier coefficient with respect to a fundamental wave and/or component of positive-phase sequence of the alternating current to be detected from the plurality of sampled values thus held to separate the real and imaginary parts thus calculated to output respective calculated values thereof, and a second calculation circuit for further applying a predetermined calculation to the calculated values of the real and imaginary parts to thereby calculate and output the amplitude of the fundamental wave and/or component of positive-phase sequence of the alternating current.
Patent EP-0464351-A2 (EP)
Inventor: PIELARTZIK HARALD DR
IPC: C08L67/02
Filed: 1991-05-22
Abstract: The present invention relates to readily flowing polycarbonate, polyestercarbonate and polyester moulding compositions containing liquid crystalline ester and/or esteramide oligomers.
Patent EP-0476698-A2 (EP)
Inventor: KAWABATA MOTONOBU DAINIPPON SC
IPC: G02B27/00
Filed: 1991-09-20
Abstract: A first image-forming system includes first (26) and second (27) lens systems which are disposed in this order from a light source (1) to a deflector (3). The first lens system has a positive power along a second direction so as to converge a diverging light beam from the light source onto the deflector with respect to the second direction. With respect to a first direction being perpendicular to the second direction, the first lens system has no or a negative power while the second lens system has a positive power so that the focal point of the first image-forming system is located at the light source. Thus, a collimated light beam (L2) in the first direction from the first image-forming system is directed to the deflector.
Patent EP-0443879-A2 (EP)
Title: Method for forming semiconductor device isolation regions
Inventor: KAWAMURA AKIO
IPC: H01L21/762
Filed: 1991-02-22
Abstract: A method for forming semiconductor device isolation regions including steps of forming a first insulating film on a semiconductor substrate, removing the first insulating film in a portion to become a device isolation region with use of a resist pattern formed in an one-time lithography step as a mask so as to form an opening which reaches the semiconductor substrate, removing the resist pattern to deposit a second insulating film on the first insulating film and the inside of the opening and then etching the entire surface in order to make the second insulating film remain on only the periphery of the bottom of the opening and to expose the surface of the semiconductor substrate in a central portion of the bottom of the opening, forming an oxide film on the surface of the semiconductor substrate exposed in the central portion of the bottom of the opening with use of the first insulating film and the second insulating film on the periphery of the bottom of the opening as a mask by a selective oxidation method, removing the second insulating film on the periphery of the bottom of the opening and then etching the surface of the semiconductor substrate exposed on the periphery of the bottom of the opening with use of the oxide film formed in the central portion of the bottom of the opening by the selective oxidation method and the first insulating film which remains in portions other than the device isolation region as a mask so as to form a trench, and burying the trench with a third insulating film.
Patent EP-0475558-A2 (EP)
Inventor: FINKELSTEIN BLAIR IAN
IPC: G11B7/125
Filed: 1991-03-01
Abstract: The present invention relates to a method of calibrating a system for the recording and readback of optically detectable data of the type which comprises a record medium (30) formed from a material which is sensitive to optical radiation, means (67) for generating a beam of light (47), means (33) for scanning the beam of light relative to the surface of the medium, means (75) for selectively varying the intensity of the beam of light so as to record data at selected positions on the surface and means (79) for reading back the recorded data. The calibrating method comprises the operation of controlling the recording intensity of the beam of light so that signals from the readback means have a maximum amplitude. 
     According to the invention the operation of controlling the recording intensity comprises utilising the beam of light to record a plurality of test patterns (29) on the surface of the medium each pattern being recorded with a different intensity of the beam of light, reading back the test patterns and generating a readback test signal from each test pattern, detecting the readback test signal having the largest amplitude, and utilising the intensity of the beam of light used to record the test pattern which generates the readback test signal having the largest amplitude for the light beam when it is recording data. 
     The invention also relates to apparatus for implementing the above method of calibrating.
Patent EP-0465211-A2 (EP)
Inventor: TABB CHARLES H
IPC: G03G15/09
Filed: 1991-07-02
Abstract: Apparatus and method of forming plural images, wherein the method includes the steps of: uniformly charging (24) a charge retentive belt (10); discharging (25) portions of the uniformly charged belt to form relatively high and low voltage areas of the same polarity on the belt; providing a high resolution development system (32); providing an electrical bias (41) for said development system such that a relatively large development field is provided between said developer structure forming a part of the development system and the relatively low voltage; using the high resolution development system, developing the areas of relatively low voltage with first toner material contained in the developer structure; discharging (48) portions of the relatively high voltage areas of the charge retentive belt to form areas at a voltage level intermediate the relatively high and low voltage areas; and developing (34) the areas of high voltage level with a second toner material which is distinct and of opposite polarity from said first toner material.
Patent EP-0479580-A2 (EP)
Inventor: HIKASA TADASHI
IPC: C08L23/08
Filed: 1991-10-02
Abstract: A thermoplastic elastomer powder for powder molding, comprising an elastomer composition of an ethylene-a-olefin copolymer rubber and a polyolefin resin, wherein the elastomer composition has a complex dynamic viscosity η*(1) as measured at frequency of 1 radian/sec. in dynamic viscoelasticity measurement at 250°C, of 1.5 x 10 5  poise or less, a Newtonian viscosity index n calculated from the following formula by using the complex dynamic viscosity η*(1) at a frequency of 1 radian/sec. and the complex dynamic viscosity η*(100) at a frequency of 100 radian/sec. of 0.67 or less, and a hardness (shore D) of 45 or less :
Patent EP-0485123-A2 (EP)
Inventor: FORLANI RICCARDO
IPC: B65H29/20
Filed: 1991-11-01
Abstract: An image is fixed to a sheet of paper, in an image reproducing machine, in a fixing station (GF). This uses heat and pressure to fix the image. A pair of straightening rolls (24, 26) downstream of the fixing station apply tension to the sheets in the direction of advance and forward them in a direction which inclines by a predetermined angle of correction with respect to the natural direction (21) with which the sheets leave the fixing station. The straightening rolls form a nip (62) therebetween and this may extend around a portion of the periphery of one of the rolls such that sheets passing therethrough are bent in an opposite direction to their natural direction of curl.
Patent EP-0487281-A2 (EP)
Inventor: SHIKATANI JUNICHI
IPC: G11C8/16
Filed: 1991-11-18
Abstract: A semiconductor memory device in which dual-ports (A,B) are provided for selecting a specific memory cell from a memory cell matrix includes a driving state detection unit(6) for detecting the state of driving word lines of the two ports and delivering a detection signal based on the detection, where one of the ports is in the writing state with regard to the memory cell, and a bit line short-circuiting unit (212,222,232,242) responsive to the detection signal from the driving state detection unit for realizing a short-circuit between predetermined bit lines.
Patent EP-0496250-A2 (EP)
Title: Verfahren und Vorrichtung zum Behandeln von Staub od. dgl. Rieselgut
Inventor: SCHEEL HANS-JOACHIM
IPC: F23C10/12
Filed: 1992-01-14
Abstract: Bei einem Verfahren zum Behandeln von mit organischen Anteilen versehenem Staub od. dgl., insbesondere vom Filterstaub aus Binder enthaltenden Gießereisanden, wird der Staub in einen fluidisierbaren Wärmeträger aus feuerfestem Werkstoff eingebracht, aufgeheizt und verbrannt, wobei der Wärmeträger zur Aufnahme des Staubes bevorzugt vorgewärmt wird. Bei einer Vorrichtung zur Durchführung dieses Verfahrens ist in einer Brennkammer eines Ofens (12) auf einem Fluidisierboden (30) ein Schüttgutbett aus einem fludisierbaren, feuerfesten Werkstoff als Wärmeträger (34) angeordnet, und in diesem sind eine Heizeinrichtung (36) sowie wenigstens eine Eintragseinrichtung (38) für den Staub vorgesehen. <IMAGE>
Patent EP-0517240-A2 (EP)
Inventor: TODA HARUKI
IPC: G11C11/407
Filed: 1992-06-05
Abstract: A random access memory device is provided with data hold circuits (13, 14, 17, 18, 20, and 21) connected midway between a column address write circuit (19) and a column select circuit (22), between a sense amplifier circuit (12) for amplifying data read from the selected column and a data output circuit (15), between a write data input circuit (16) and a selected column line (11), respectively. In data write operation, all the data hold circuits are activated at appropriate timings. In data read operation, all but the data hold circuit connected midway between the column address write circuit and the column select circuit are activatged. In both cases, a data is written to the cell, is outputted in the succeeding cycle after the cycle during which the address data is written. Therefore, data transfer operation is executed in sequence through the routes separated by the data hold circuits, thus enabling the higher speed and more efficient data read and write operation.
Patent EP-0512628-A2 (EP)
Inventor: VAN DIJK CORNELIS
IPC: G11B23/087
Filed: 1992-05-04
Abstract: A prerecorded cassette (1) belongs to a system for magnetically recording/reproducing signals on/from magnetic tape in accordance with a standard, which system comprises apparatuses and cassettes compatible therewith, which cassettes comprise two parallel main walls and interconnecting transverse walls and occur with prerecorded tape (prerecorded cassettes 1) and with blank tape (blank cassettes 3), which standard specifies a tape length marking which can be detected by an apparatus and which marks the length of the magnetic tape in a cassette by a pattern of openings (33-37) in a marking zone (39) of a main wall (19) of a cassette (3), which tape length marking comprises a plurality of submarkings (33-37) in a binary multi-bit code, the value of each bit being defined by the presence/absence of an opening. 
     With the prerecorded cassettes (1) a tape length marking is dispensed with completely and information about the playing time and information about the position on the tape are recorded on the tape as time code. Preferably, the system specification for the erase protection is such that, to indicate the impossibility of home recording, the prerecorded cassette does not have an erase protection opening at all. As a consequence, the prerecorded cassette (1) is not suitable, and can hardly be made suitable, for home recording. If the cassette is provided with a permanent label (55) the relationship between the recording and the information on the label will be maintained for the entire life of the cassette.
Patent EP-0498610-A2 (EP)
Inventor: AOKI KANJI
IPC: B66F9/22
Filed: 1992-02-04
Abstract: When control output is determined by selecting the limit controlled variable of work machine lever at the start of operation, the limit controlled variable is corrected by shifting the limit table. Also, the limit controlled variable is determined by nonlinear correction made partially on the limit table.
Patent EP-0501782-A2 (EP)
Inventor: ISEKI TSUTOMU
IPC: B60C9/20
Filed: 1992-02-26
Abstract: A pneumatic tyre comprising a carcass (5) extending between beads (4), and a belt (6) disposed radially outside the carcass (5) and inside a tread (2) and having opposite axial edges, characterised in that the belt (6) comprises at least one continuous cord wound around the carcass (5) lying zigzag between the edges of the belt (6) to define oblique cord segments extending between the edges (F1,F2) of the belt (6), the cord segments including first oblique cord segments and second oblique cord segments, the first cord segments being laid substantially parallel to each other, and the second cord segments being laid substantially parallel to each other and crosswise to the first cord segments.
Patent EP-0514166-A2 (EP)
Inventor: TANAKA KAZUKI
IPC: H04N1/407
Filed: 1992-05-14
Abstract: An image reader sets the level of illumination provided by a light source 9 and the gamma correction provided by a density correction circuit 4 in dependence upon a user selected density setting button 52 on a control panel 12.
Patent EP-0517503-A2 (EP)
Inventor: AIDA KAZUO
IPC: H01S5/0683
Filed: 1992-06-03
Abstract: An optical amplifier using an optical fibre doped with a rare-earth element. The doped optical fibre (4) amplifies an optical signal when pumped with light. The gain of the optical amplifier is controlled by using a signal obtained from a detector (5) which detects the light emitted sideways from the optical fibre. The signal obtained from the detector is applied to a feedback network (7) for controlling a light source (8) which serves as a light pump. The control is in such a sense as to maintain the level of the sideways-emitted light substantially constant. 
     An alternative optical amplifier uses a laser diode which amplifies an optical signal when pumped with current. Sideways-emitted light from the laser diode is used in the feedback network in this arrangement.
Patent EP-0522844-A2 (EP)
Inventor: FORWALD KARL
IPC: B01J2/06
Filed: 1992-07-08
Abstract: A method for granulating a stream of molten metal (7) which is caused to fall from a launder or the like down into a liquid cooling bath (2) in a tank (1). The metal stream is divided into droplets in the liquid cooling bath, which solidify and form solid granules. A substantially uniform flow of cooling liquid is caused to flow from one of the side walls in the tank substantially perpendicularly against the falling metal stream, said flow of cooling liquid having a velocity of less than 0.1 m/second. The distance from the outlet of the launder to the surface of the liquid cooling bath is kept less than 100 times the diameter of the metal stream measured as the metal stream leaves the launder.
Patent EP-0546839-A2 (EP)
Inventor: NISHIYAMA SHINJI
IPC: G06F3/06
Filed: 1992-12-10
Abstract: In an apparatus and method for data checking in a storage system such as a disk array system which includes a plurality of storage devices, the write data have error detecting codes for a host device thereof checked and stored in a register unit (46), the write data are divided, error detecting codes for the storage devices are generated, the write data are written in the storage devices and are simultaneously transferred through paths used for the read data, the write data are combined into host data, error detecting codes for the host device are generated, and the generated codes are compared with the codes stored in the register unit (46) so as to check whether they correspond to each other. 
     Alternatively, the read data have error detecting codes for the storage devices thereof checked and stored in a register unit (47), the read data are combined into host data to be transferred to the host device, the combined data is transferred through the paths used for the write data, the data are divided into storage device data, error detecting codes for the storage devices are generated, and the generated codes are compared with the codes stored in the register unit (47) so as to check whether they correspond to each other.
Patent EP-0580008-A2 (EP)
Inventor: ZOLLER GERHARD DR
IPC: C07K5/08
Filed: 1993-07-06
Abstract: Phenylimidazolidine derivatives of the general formula I <IMAGE>  in which, for example,     Y is -CH2-CH2-CO-   r is 0 to 3   Z is oxygen   W is hydroxyl   R<1> is -NH-C(=NH)-NH2   R, R<2>, R<3> are hydrogen   R<4> is -CO-NHR<5> where -NH-R<5> is an  alpha -amino acid residue, have valuable pharmacological properties.
Patent EP-0583773-A2 (EP)
Inventor: MORIMOTO KYOUMI
IPC: G05D1/02
Filed: 1993-08-17
Abstract: Geographical, guide or search information and route information are stored in storage sections 10 and 24. In order that an arithmetic section 20 may realize a route re-searching function in preference to the traveling direction of a vehicle, a route-calculating section 22 is equipped with a re-calculation section 22c for re-calculating the route, and a route guide control system 26 is equipped with a route deviation-detecting section 26b. The re-calculating section 22 calculates either the shortest route from the point of deviation to the previous route or a new route to the destination. In case of the search of the shortest route to the previous route, the shortest route from the present location to the previous route is searched in preference to the traveling direction (with no U-turn) on the basis of the search information of the periphery of the present location, so that the route to joint to the previous one can be quickly calculated. In case of search of a new route, the whole route from the present location to the destination is searched in preference to the traveling direction on the basis of the search information between the present location and the destination, to guide the driver along a route other than the previous one.
Patent EP-0595042-A2 (EP)
Inventor: AIZAWA MASAHIRO
IPC: G03G15/08
Filed: 1993-09-28
Abstract: An image forming apparatus including a latent image carrying member (2) moving while carrying an electrostatic latent image on a surface thereof; a developer supplying member (6) for supplying a developer (4) to a whole electrostatic latent image on the surface of the latent image carrying member (2) including an image area and a non-image area; a charging member (8b) for charging the developer (4) on the surface of the latent image carrying member (2); and a developer recovering member (10) for recovering a portion of the developer (4) adhering to the non-image area of the surface of the latent image carrying member (2).
Patent EP-0595301-A2 (EP)
Inventor: WESTERINK PETER HANS
IPC: H04N9/093
Filed: 1993-10-27
Abstract: System and method for modifying the magnification and registration factors of an image using digital signal processing, interpolation. A camera system samples an image to generate sampled data signals. The sampled data signals are first interpolated across the either the rows or columns of the image and then across the columns or rows of the image to change the magnification and registration factors of the images represented by each of the sampled data signals to some common desired magnification and registration factors. The system electronically corrects for chromatic aberration and geometric distortion in the image caused by the lens system and skew among the images caused by misalignment of the respective color image sensors.
Patent EP-0601432-A2 (EP)
Inventor: YAMADA TETSUO
IPC: H02P29/00
Filed: 1993-11-29
Abstract: A method and system for estimating an inertia of 2-mass system constituted by a motor and a load connected through a torsionable shaft during operation. The estimating method is implemented as follows: (a) obtaining a deviation between a motor speed preset value and a motor speed in a deviation section; (b) inputting the deviation from the deviation section into an adding section through a speed control amplifier; (c) obtaining a motor generating torque by inputting the output from the speed control amplifier and the load torque estimate into an adding section; (e) inputting the motor generating torque into a model of the 2-mass system; and (f) obtaining an inertia error by inputting the load torque estimate into the inertia error estimating section. With this method, it becomes possible to estimate the inertia of the 2-mass system even if the load inertia is varied during operation.
Patent EP-0577290-A2 (EP)
Inventor: FREDERICKSON SHERMAN E
IPC: C09K8/62
Filed: 1993-06-16
Abstract: Producing zones in subterranean formations are fracture acidized by creating one or more fractures (10) in the zone, causing the fractures to close (Fig 2) and injecting acid into and through the closed fractures so that flow channels (16) are formed (Fig 3) therein. The fractures (16) are then extended in the zone (Fig 4), caused to close (Fig 5) and acid is injected through the previously formed flow channels (16) and through the extended portions (20) of the fractures (Fig 6) so that flow channels are formed in the extended portions. The steps of extending the fractures, causing the fractures to close and injecting acid are repeated until fractures having flow channels formed therein are extended desired distances in the zone.