baber/WOPTO huggingface dataset:
Patent EP-0318950-A2 (EP)
Inventor: YONEDA HIOTSHI
IPC: G06T5/00
Filed: 1988-11-30
Abstract: An image processing device capable of processing images containing poorly contrasted letters and/or bold letters in addition to well contrasted letters and pictures such that both resolutions of letters and tones of pictures can be preserved. The device may include a circuit (3, 4) to distinguish two level images from non two level images according to image concentration related quantity, and a circuit (2) to distinguish picture images out of non two level images according to another image concentration related quantity. The device may include a circuit (2) to distinguish letters from pictures according to the maximum and the minimum values of the image concentration related quantity. The device may include a circuit to distinguish letters from pictures according to the maximum and the minimum values of changes in the image concentration related quantity. The device may include a circuit to distinguish letters from pictures according to the square sum average of differences in the image concentration related quantity between neighboring picture elements.
Patent EP-0326715-A2 (EP)
Inventor: DHILLON MAJOR S
IPC: B41N3/08
Filed: 1988-12-30
Abstract: A developing and finishing composition for lithographic printing plates containing:
     a) a mono-, di- or tri-sodium, potassium or lithium phosphate; and   b) benzyl alcohol, phenoxyethanol and phenoxypropanol; and   c) polyvinyl pyrrolidone, dextrin, poly (methyl vinyl ether/maleic acid) and gum arabic; and   d) citric acid and bencoic acid; and   e) sodium or potassium actyl sulfate; and   f) sodium, potassium and lithium benzoate; and   g) sodium, potassium and ammonium citrate; and   h) sodium, potassium and ammonium sorbate; and   i) sufficient water (add to give 100.0% by weight) to formulate an effective developer.
Patent EP-0289134-A2 (EP)
Inventor: YOSHIMOTO SATOSHI
IPC: B41J29/36
Filed: 1988-03-25
Abstract: In a printed character printed with a printing apparatus provided with a plurality of type elements (5) and a print hammer (7), the specified left or right edge portion thereof has ink adhered heavily on the paper (P), and this specified edge portion is difficult to be erased when erasing a wrongly printed character with a correction ribbon  (29). 
     In the disclosed character erasable printing apparatus, after moving the carriage (1) from the print position by a predetermined minute distance in the printing direction or in its opposite direction toward the specified edge portion, a first hammering for erasure is carried out, and subsequently after moving the carriage in the direction opposite to above-described movement, at least, a second hammering for erasure is carried out with an unused fresh portion of the correction ribbon (29) made to face the specified edge portion having residual ink.
Patent EP-0308134-A2 (EP)
Inventor: MAEDA SEIICHI
IPC: B24B9/06
Filed: 1988-09-08
Abstract: There is provided a specular machining apparatus for a peripheral edge portion of a semiconductor wafer comprising a chuck table having a chuck means for holding a wafer whose peripheral edge portion is chamfered and being rotatable for rotating a wafer held by the chuck means around the axis of the wafer, and a polishing member for specular machining of the chamfered edge portion of the wafer held on the chuck table, said polishing member comprising at least one ring having a polishing surface formed on its outer peripheral surface, said ring being rotatable around an axis perpendicular to the axis of the wafer and being movable into and out of polishing contact with the chamfered edge portion of the wafer.
Patent EP-0315399-A2 (EP)
Inventor: HUANG FU-CHI
IPC: C07D215/14
Filed: 1988-11-01
Abstract: This invention relates to quinoline derivatives, their use in the treatment of hypersensitive ailments and a pharmaceutical composition containing the same. 
     The quinoline derivatives of the invention are a particular class of quinolinyl-diaryl compounds and they are especially valuable as lipoxygenase inhibitors and/or leukotriene antagonists, typically antagonists of leukotriene D 4 , possessing anti-inflammatory and anti-allergic properties.
Patent EP-0328963-A2 (EP)
Inventor: HOFER HANS-JOACHIM DR
IPC: B05D3/12
Filed: 1989-02-03
Abstract: A novel process for polishing highly resilient coating surfaces, in which the surface to be polished is kept at a temperature of less than +5 DEG C by means of a cold gas during the polishing process.
Patent EP-0340435-A2 (EP)
Inventor: YOKOYAMA KENJI
IPC: H04R1/28
Filed: 1989-03-20
Abstract: An acoustic apparatus for improved bass sound reproduction comprising a resonator, a vibrator, and a vibrator drive means, the resonator having a passive diaphragm serving as a resonance radiation unit for radiating an acoustic wave by resonance, the vibrator having an active diaphragm provided for the resonator, and the vibrator drive means having a drive control means for controlling a drive condition so as to cancel atmospheric counteraction of said resonator at the time of driving of the resonator, whereby the vibrator may be invalidated as viewed from the resonator, and the vibrator and the resonator can be independently designed.
Patent EP-0335311-A2 (EP)
Inventor: ST-GERMAIN JEAN
IPC: E04G1/20
Filed: 1989-03-28
Abstract: This scaffolding comprises a base, a pair of spaced posts on said base each formed of modular post sections, releasably secured one on top of the other by fasteners. Each post section is formed of a lattice frame with transversely-extending bars forming anchoring steps, equally spaced along the post. A work platform surrounds the posts and is guided therealong for up-and-down movement. A pair of anchoring hooks are pivoted at theri lower end to the platform and are engageable with the steps of the two posts to suspend the platform. A pair of hydraulic rams are pivoted also to the platform adjacent each post and upwardly-upstanding piston rods are provided with hooks to engage the steps of the post and raise or lower the platform. The hydraulic supply for the rams is mounted on the platform. The hook members are biased towards the posts, so that they automatically engage the steps. A single operator can operate the rams to raise and lower the work platform. The same operator can install the modular post sections as the platform is being raised and can dismantle when the platform is lowered. A swing stage is supsended from the work platform by flexible cables. The operator can climb down on the work stage to install bracing bars for interconnecting the posts as the platform is raised and to attach tie-rods to the posts and to an adjacent building wall to be covered with bricks or the like, which is carried by the platform.
Patent EP-0342562-A2 (EP)
Inventor: DURKOP JOACHIM DR-ING
IPC: C09D133/04
Filed: 1989-05-13
Abstract: The invention proposes the use of polyacrylate plastisols for the surface-coating of plastic floor coverings, in particular made of PVC or PVC foam coverings. The plastisols comprise polymethacrylate or polyacrylate and plasticisers, for example benzyl octyl phthalate or butyl benzyl phthalate, and optionally fillers. The invention furthermore relates to floor coverings whose covering layer is formed from acrylate plastisols of this type.
Patent EP-0342659-A2 (EP)
Inventor: ARMSTRONG ADRIAN RYAN
IPC: C08F8/20
Filed: 1989-05-18
Abstract: A chlorinated terpolymer of a precursor terpolymer containing 3-20 weight percent acrylic acid as methacrylic acid, 3-20 weight percent vinyl acetate and 60-90 weight percent ethylene is disclosed. The chlorinated terpolymer contains 20-60 and preferably 25-55 weight percent chlorine.
Patent EP-0363952-A2 (EP)
Inventor: RAUER MANFRED DIPL-ING
IPC: E02D27/28
Filed: 1989-10-12
Abstract: The invention relates to a founding apparatus, in particular for founding buildings and the like, which has two or more individual piles which are combined to form a pile bunch. At least one of the individual piles of the pile punch has a tension channel which runs essentially in the longitudinal direction and has a tensioning device. The tension channel is arranged with regard to the pile bunch in such a way that the tension applied to the tensioning device after the sinking deforms the pile bunch in such a way that the total cross-sectional area of the pile bunch is increased after the sinking in one or more regions relative to the initial cross-section before the change in the tension force. <IMAGE>
Patent EP-0376084-A2 (EP)
Inventor: EBARA TAKESHI
IPC: C08F4/646
Filed: 1989-12-14
Abstract: A process for producing a highly stereospecific α-olefin polymer which comprises homopolymerizing or copolymerizing an α-olefin or copolymerizing an α-olefin with ethylene by the use of a catalyst system comprising:
     (A) a solid catalyst component containing a trivalent titanium compound obtained by reducing a titanium compound represented by the following general formula: 
Ti(OR¹) n x 4-n   
(R¹ represents a hydrocarbon group having 1 to 20 carbon atoms, X represents a halogen atom and n represents a number satisfying 0 < n ≦ 4) with an organomagnesium compound in the presence of an organic silicon compound having Si-O bonds to obtain a solid product, followed by treating the solid product with an ester compound and thereafter treating the ester-treated solid product with a mixture of an ether compound and titanium tetrachloride or a mixture of an ether compound, titanium tetrachloride and an ester compound,   (B) an organoaluminum compound, and   (C) a silicon compound represented by the following general formula: 
  R²R³Si(OR⁴)₂ 
(R² represents an alicyclic hydrocarbon group having 5 to 20 carbon atoms, R³ represents an acyclic hydrocarbon group having 2 to 12 carbon atoms, and R⁴ represents a hydrocarbon group having 1 to 20 carbon atoms).
Patent EP-0352875-A2 (EP)
Inventor: SAKAMOTO MASASHI
IPC: C08K5/09
Filed: 1989-01-06
Abstract: A polystyrene resin composition comprising a rubber-­reinforced polystyrene, a fibrous potassium titanate and a higher fatty acid and/or its metal salt in specific propor­tions. The composition exhibits greatly improved stiffness without sacrificing its excellent impact strength, melt flowability and good appearance. The composition is useful as a material for manufacturing large-sized molded artic­les, such as parts and housings or large-sized TV sets and frames for air conditioners. The composition may further comprise a fire retardant and a carbon fiber in specific proportions. The resultant fire-retardant composition is not only excellent in the above-mentioned properties of mechanical strength but also exhibits excellent fire retar­dance and, therefore, is advantageously used as a material for manufacturing the above-mentioned articles especially when the articles are required to have high fire retar­dance.
Patent EP-0351160-A2 (EP)
Inventor: CHAMBERLIN DAVIS W C O MINNESO
IPC: G11B5/82
Filed: 1989-07-10
Abstract: A cartridge (3) enclosing a disk-shaped magnetic recording medium (4) is provided with a disk restraint (15, 52, 90, 92) disposed between the disk (4) and the cartridge (3) for sliding movement in the plane of the disk (4). A camming surface (38) is provided on the cartridge (3) which forces the restraint (15, 52, 90, 92) downwardly to restrain the disk (4) when the cartridge (3) is not in use. In use, the restraint is slid out of engagement with the camming surface (38) to release the recording disk (4).
Patent EP-0356129-A2 (EP)
Inventor: FAXON ROBERT L SR
IPC: B23D45/02
Filed: 1989-08-16
Abstract: Mechanism for controlling the rate of travel of a saw unit (32), (38) as the saw (38) operates and travels upon a radial arm (26). A housing (74) contains fluid and an axially movable piston (78) and a piston rod (82). A wheel (92) is operably joined to the piston rod (82) and is connected to the piston rod (82) so that the piston rod (82) moves axially as the wheel (92) rotates. A cable (110) is wound upon the wheel (92) and extends from the wheel (92) and is connected to the saw unit (32), (38). As the saw unit (32), (38) is moved upon the radial arm (26) the cable (110) rotates the wheel (92), and the wheel (92) forces axial movement of the piston rod (82) and the piston (78). Movement of the piston (78) forces movement of fluid within the housing (74). The pressure of the fluid upon the piston (78) controls the rate of axial movement of the piston (78) and the piston rod (82) and controls the rate of rotary movement of the wheel (92). Thus, the rate of travel of the cable (110) and the rate of travel of the saw unit (32), (38) are controlled by the rate at which the piston (78) travels as the piston (78) moves fluid within the housing (74).
Patent EP-0360573-A2 (EP)
Inventor: WOLFBERG ROBERT L
IPC: B25C1/00
Filed: 1989-09-20
Abstract: A fastener-driving tool may include a conventional drive fed with fasteners, such as a strip of nails (N), from a magazine by means of a pawl (42) having at least one groove (56, 58) for receiving a nail (N) and feeding it into a drive track (18). A fixed structure (90) confines one side of the leading portion of the strip so as to guide such portion. When in an operative position, a hinged structure (100) confines the other side of such portion so as to guide such portion. The hinged structure includes a holding member (110) adapted when in a N  operative position to hold one such fastener in the grooves (56, 58) and movable to inoperative positions so as to expose the grooves (56, 58). The hinged structure also includes a hinged cover (120) adapted when in an operative position to secure the holding member (110) in its operative position, as the sole means for doing so, and adapted to move so as to allow the holding member (110) to be so moved and so as to expose fastener-guiding surfaces of the fixed structure (90).
Patent EP-0369717-A2 (EP)
Title: A solar cell and a production method thereof
Inventor: HOKUYO SIGERU MITSUBISHI DENKI
IPC: H01L27/142
Filed: 1989-11-13
Abstract: A solar cell (Fig. 1) includes a first conductivity type semiconductor substrate (100) having confronting two main surfaces, a second conductivity type first semiconductor layer (102) produced at a portion of first main surface of the semiconductor substrate (100), a second conductivity type second semiconductor layer (203) which, produced on the first main surface of the semiconductor substrate (100) except for the first semiconductor layer production region (102), produces a pn junction (203,202,201,100) with the semiconductor substrate (100) having no reverse direction voltage blocking capability, a first conductivity type third semiconductor layer (204) produced on the second semiconductor layer (203), a first electrode (402,401) provided so as to cover the first semiconductor layer (102) and which connects the third semiconductor layer (204) with the first semiconductor layer (102), and a second electrode (403) produced at a second main surface of the semiconductor substrate (100).
Patent EP-0336920-A2 (EP)
Inventor: MITTER GERHARD DIPL ING DR
IPC: C21B13/00
Filed: 1989-03-16
Abstract: In a process for charging pig iron, scrap or ore to a melting furnace (1) or melting reduction furnace (10), the charge is preheated before feeding into the furnace (1, 10). Here, before being fed in, the charge is held with the use of an electromagnetic field until a predetermined temperature is reached. The electromagnetic holding device (3) is here designed, for example, as a coil or annular magnet. <IMAGE>
Patent EP-0399448-A2 (EP)
Title: Diamine
Inventor: KUNZ MARKWART DR DIPL-CHEM
IPC: C12P19/44
Filed: 1990-05-22
Abstract: Polyhydroxy diamines are proposed as saccharide derivatives with the advantage of reduced toxicity, improved tolerability by skin and biodegradability compared with known petrochemically-based diamines. In particular derivatives of saccharides with one amino group in every second monosaccharide unit, specifically diamino dideoxy derivatives of reducing disaccharides such as isomaltulose, trehalulose, maltose, lactose and leucrose, have these properties.
Patent EP-0399506-A2 (EP)
Inventor: MARGERUM DAVID J
IPC: G02F1/1334
Filed: 1990-05-23
Abstract: A high contrast display is provided by illuminating a polymer dispersed liquid crystal (PDLC) display panel through opposite edges thereof. Light scattered out the front of the panel from non-activated areas of the PDLC in which the refractive indices of the liquid crystal and polymer matrix materials are mismatched. For a direct view transmission mode display, the rear of the panel is black­ened so that activated areas of the PDLC in which the refractive indices of the materials are matched transmit edge-illuminated and ambient light and appear black. For a reflection mode display usable in combination with projection optics, the rear of the panel is provided with a mirror surface, and ambient light is prevented from reaching the panel.
Patent EP-0407960-A2 (EP)
Inventor: BRUCKNER WERNER
IPC: D01F8/04
Filed: 1990-07-10
Abstract: There are described antistatic synthetic bicomponent filaments of the core-sheath type with a core of enhanced electrical conductivity comprising a synthetic polymer in which solid, electrically conductive particles have been dispersed and with a sheath of enhanced conductivity comprising a fibre-forming polymer which contains one of the antistats known per se or a mixture thereof.
Patent EP-0411597-A2 (EP)
Title: Telecommunication system for protected translation of digital signals by means of a passive optical bus network
Inventor: SCHAFFER BERNHARD DIPL-ING
IPC: H04B10/24
Filed: 1990-07-31
Abstract: In a telecommunication system in which subscriber stations are connected via optical waveguide connection lines (LWLA), one or more optical branching devices (VZ) and optical waveguide subscriber connection lines (LWLTA) to an exchange (VSt), where one or more subscribers can be connected to an optical branching device (VZ), the digital signals destined for one subscriber are protected against unauthorised access by providing a scrambling circuit (CS) in each of the subscriber stations (TSt) which, when a connection is set up from the exchange (VSt), initiates a coding key which passes via directional branching elements (FMR) to the exchange (VSt), whereupon the digital signals to be transmitted from the exchange (VSt) are encrypted with the subscriber-specific coding key and transmitted via the optical waveguide connection line (LWLA), the (directional) branching elements (FOR) and the optical waveguide subscriber connection lines (LWLTA) to the subscriber stations (TStn). <IMAGE>
Patent EP-0428065-A2 (EP)
Inventor: COLOMBAN MASSIMO
IPC: E04F17/08
Filed: 1990-11-08
Abstract: Method for producing raceways, particularly in floors, including the step of resting at least one shaped structure (3) which defines a plurality of adjacent and parallel raceways (6) on a floor slab (1) preferably with the interposition of a layer of insulating material (2); further steps include casting a levelling foundation (5) above the structure and covering with flooring (4).
Patent EP-0427289-A2 (EP)
Inventor: HSIEH WILLIAM
IPC: G06F15/02
Filed: 1990-11-09
Abstract: A portable electronic financial calculator and planner displays all the variables associated with the financial problem to be calculated on one screen (41) to enable the user to more efficiently input numeric information corresponding to the various variables of the desired financial calculation. To display all the variables in common English terms, the portable financial calculator and planner has separated the financial problems into separate applications which enables this device to display variables distinct to the selected problem. This portable financial calculator and planner includes a display panel having at least eight lines of multi-digit display units. The portable electronic financial calculator and planner also has an input device (31) which allows the operator to input numeric information into the fields corresponding to the known variables of the financial problem by allowing the user to utilize a movable cursor which is capable of moving from field to field. This input device also includes an answer request symbol to allow the user to assign one variable of the financial problem as the unknown variable to be determined. By displaying all the variables on one screen (41) and allowing the user to input numeric information into any field associated with the variables of the financial problem through the use of a cursor, the portable electronic financial calculator and planner allows the user to operate it without extensive training.
Patent EP-0428172-A2 (EP)
Inventor: ASAI JUN
IPC: G03G15/16
Filed: 1990-11-15
Abstract: An image forming apparatus includes a movable image bearing member (1); an image forming device (3) for forming an image on the image bearing member (1); a charging member (5) press-contacted to or faced to the image bearing member (1) to transfer the image from the image bearing member (1) onto the transfer material (P) passed therebetween; a bias voltage applying device (8) for applying a bias voltage to the charging member (5), wherein the voltage applying device constant-voltage-controlled the charging member (5) in a period when an image region of the image bearing member (1) is present in the transfer position, and constant-current-controls the charging member (5) in another period, and wherein a voltage applied to the charging member (5) during the constant voltage control is a sum of a voltage provided during the constant current control and a predetermined voltage.
Patent EP-0390486-A2 (EP)
Inventor: SAWYER CRAIG DELANY
IPC: G21C15/18
Filed: 1990-03-27
Abstract: A safety measure for water cooled nuclear fission reactor plants is disclosed. The safety measure comprises means (34,36) for flooding an area (22) beneath the reactor pressure vessel (14) containing the fuel core (16) in the event of a fuel core meltdown and breach of the pressure vessel, thereby to cool discharge debris (32) in that area.
Patent EP-0392728-A2 (EP)
Inventor: DODDINGTON GEORGE R
IPC: G06F3/16
Filed: 1990-04-04
Abstract: A method for efficient pruning which reduces central processing unit loading during real time speech recognition. A CPU uses a predetermined threshold for discarding not useful or necessary information. Useful information is stored in an available scoring buffer slot. A slot is said to be available if its last-time field does not equal the current time-index. To prevent pruning of a slot in the best path, the current time-index has to be propagated to all slots in the best path. This back-propagation increases CPU loading and is alleviated by referring the backpointer of a state within a model to its start state.
Patent EP-0420427-A2 (EP)
Inventor: TANIMOTO KOJI C O INTELLECTIUA
IPC: H02P8/32
Filed: 1990-09-06
Abstract: An image forming apparatus for producing a visible image on an image forming medium (P) includes a photosensitive drum (4) for carrying a latent image thereon, a developer (5A-5D, 5a,-5d) for developing the latent image to form a developed image on the phgotosensitive drum (4), and a transfer drum (6) for supporting the image forming medium (P) and transferring the developed image on to the image forming medium (P). The image forming apparatus further includes a stepping motor (19), which has a plurality of exciting windings (60), for rotating the photosensitive drum (4), a driver (71) for driving the stepping motor (129), and a controller (81) for controlling the driver (71) such that the plurality of exciting windings (60) are switched to be excited in a prescribed manner, the controller (81) periodically varying the switching time intervals for exciting the windings (60) in correspondence to variations in the rotational speed of the stepping motor (19).