baber/WOPTO huggingface dataset:
Patent EP-0541404-A2 (EP)
Inventor: SKIBO EDWARD B
IPC: C07D487/04
Filed: 1992-11-09
Abstract: Pyrimido[4,5- g ]quinazoline quinone derivatives were synthesized as anthraquinone-like reductive alkylating agents. Like many naturally-occurring antibiotics, these quinone derivatives are designed to afford an alkylating quinone methide species upon reduction and leaving group elimination. Kinetic studies of pyrimido[4,5- g ]quinazoline hydroquinones provided evidence of quinone methide intermediates able to trap nucleophiles (alkylation) and protons. The rate of quinone methide formation is determined by the hydroquinone free energy. Thus, a linear free energy relationship for quinone methide formation was obtained by plotting rates of quinone methide formation, as the log, versus the quinone reduction potential. The pyrimido[4-5- g ]quinazoline quinone methides fall on this free energy plot, showing that these species are formed by the same mechanism as the other structurally-diverse quinone methides previously studied in this research group. A drawback of many quinone antibiotics, particularly the anthracyclines, is the formation of toxic oxygen species by quinone/hydroquinone cycling. In the present invention pyrimido[4,5- g ]quinazoline hydroquinones are found to be relatively stable toward oxygen, and thus cause little oxygen toxicity. Antitumor screening revealed that the disclosed pyrimid [4,5- g ] quinazoline dione and tetione derivatives possess excellent inhibitory activity against selected human cancer cell lines.
Patent EP-0547896-A2 (EP)
Inventor: DEPAUL MICHAEL
IPC: B01D35/18
Filed: 1992-12-17
Abstract: An oil reclamation device (20) comprising an evaporator plate (30) with a cover (70) secured thereto forming an evaporation chamber (100) which is heated by a heater means (38) mounted in the evaporator plate (30). The cover (70) is removably mounted to the evaporator plate (30). A filter assembly (50) is mounted to the evaporator plate (30) and a filter cartridge (52) is mounted in the housing (50).
Patent EP-0542702-A2 (EP)
Inventor: RAGNI LINO
IPC: G10B3/12
Filed: 1992-11-13
Abstract: Beneath each key (6,7) and carried by the keyboard support (2) there is a basically round-shaped elastic or elasticized element (8), the base of which lies on the keyboard support (2), such a round-shaped surface, which may be achieved by hot-pressing a rubber sheet, and on top of which there is a collar the aim of which is to provide a certain resistance to the key, thus distributing the deformation resistance to the key, thus distributing the deformation caused by the pressed key over the entire surface of the round-shaped element. In other words, the top collar, under the effect of the pressed key, moves parallel to itself, thus causing the uniform deformation of the entire rubber element (8). 
     The keyboard support (2) consists of a board or plate (12) on which a layer of plastic material (11) is injected in such a manner as to cover the edges and the ends of the board or sheet, while leaving the middle parts uncovered, thus forming a sort of grid.
Patent EP-0557904-A2 (EP)
Inventor: DALL OCCO TIZIANO
IPC: C08F4/658
Filed: 1993-02-19
Abstract: Process for preparing elastomeric copolymers of ethylene with α-olefins CH₂=CHR, optionally containing minor proportions of a diene, characterized by the use, during the polymerization, of a catalyst comprising the reaction product of:
     (I) a solid component comprising VCl₃ supported on a magnesium dihalide in spherical or spheroidal shape, in active form;   (II) an alkyaluminum compound;   (III) optionally a halohydrocarbon.    VCl₃ is precipitated on said magnesium dihalide by heating VCl₄ solutions in inert hydrocarbon solvents.
Patent EP-0562604-A2 (EP)
Inventor: KOBAYASHI SHOTARO
IPC: G11C11/401
Filed: 1993-03-25
Abstract: A semiconductor memory device of FIFO type is disclosed. The memory device has a test function for easy analysis of irregularities. A read data register for holding read data from the memory cells and a write data register for holding write data to the cells are provided corresponding to the memory cell array of the memory device. Further, bypass switch means for directly transferring data from the write data register into the read data register is provided.
Patent EP-0593955-A2 (EP)
Inventor: HECKEL HANS
IPC: B07B11/06
Filed: 1993-09-30
Abstract: A device for cleaning grains (1) present essentially in the form of granules and containing particles of varying size, to remove said particles, has a housing (5) which has on its top side an inlet (11) for the grains (1) and on its underside and outlet (12) for the cleaned granules (18) and possesses a distributing plate (whizzer) (6). Cleaning gas flows through the granules falling through the device, opposite to the direction of movement of said granules. In the inlet region there is provided a guide device (19) for the inflowing grains (1) and a retaining device (2) for the larger particles (3). The distributing plate (6) is provided with a cover cowl (16) which has an opening (17) for the inlflowing grains. Between the distributing plate (6) and cover cowl (16), a gap (8) is provided which preferably has a height of approx. 8 to 15 mm. <IMAGE>
Patent EP-0581393-A2 (EP)
Inventor: STRAND OLAF
IPC: B65D5/58
Filed: 1992-09-24
Abstract: A flexible intermediate bulk container having a liner which is provided with one or more suspension means 122, 124 for fastening the liner to the outer container, the liner being of such a size and shape and the suspension means being connected to the container in such an orientation that the liner, on filling, conforms to the internal dimensions of the container.
Patent EP-0586305-A2 (EP)
Inventor: KIM KWANG TAE
IPC: C08K3/36
Filed: 1993-09-02
Abstract: The invention deals with a method for the production of polyester suitable to be molded into a film with excellent surface properties. The method comprises :
     - passing dispersion-in-water type silica sol with pH 8 to 11 including sodium oxide or ammonia as a stabilizer and silica particles with average diameters 0.01 to 0.3 µm through a column of cation exchange resin having the following formula 1 :
       
and through a column of strong basic anion exchange resin having the following formula 2 :
       
in sequence to adjust the pH value to 2 to 4 ;   - adding an hydrogen bonding agent and ethylene glycol thereto ;   - heating the resultant silica sol under a reduced pressure to remove water and refluxing at the atmospheric pressure so as to obtain dispersion-in-ethylene glycol type silica sol ; and   - adding 0.01 to 5 % by weight of the dispersion-in-ethylene glycol type silica sol, as based on the weight of polyester to be produced, at any step during the ester interchange reaction.
Patent EP-0636629-A2 (EP)
Title: Alkylzinnverbindungen, deren Herstellung und diese enthaltende Mittel zur Bildung elektrisch leitfähiger und IR-reflektierender Schichten auf Oberflächen von Glas, Glaskeramik oder Email
Inventor: VALLERIEN DR SVEN-UWE
IPC: G02B1/11
Filed: 1994-07-16
Abstract: Die Erfindung betrifft Verbindungen der allgemeinen Formel SnR¹aR²bR³c, in welcher R¹ ein Alkylrest mit 1 bis 4 Kohlenstoffatomen, R² ein Acetatrest, R³ ein Trifluoracetatrest ist, und a einen Wert von 1 oder 2, b einen Wert von 1 oder 2, c einen Wert von 1 oder 2 hat, mit der Maßgabe, daß die Summe a + b + c = 4 ist. Die Erfindung betrifft ein Verfahren zur Herstellung dieser Verbindungen und ein Mittel zur Herstellung elektrisch leitfähiger und Infrarot-reflektierender fluordotierter Zinnoxidschichten auf Glas-, Glaskeramik- und/oder Emailoberflächen, wobei es Zinnverbindungen der Formel SnR¹aR²bR³c oder Mischungen dieser Zinnverbindungen, wobei die Mischung der allgemeinen Formel SnR¹xR²yR³z entspricht, in der x einen Zahlenwert von 1 bis 2, y einen Zahlenwert von 0,1 bis 2,9 und z einen Zahlenwert von 0,1 bis 2,9 hat, und die Summe x + y + z = 4  ist, in einem polaren organischen Lösungsmittel gelöst enthält.
Patent EP-0628413-A2 (EP)
Inventor: HIRAISHI HISATO
IPC: B41J2/16
Filed: 1991-11-11
Abstract: An ink jet head is disclosed for use with a drop-on demand type printer, and includes an insulating base (201), a plurality of elongated barriers (205) projecting upwardly from the base so as to form a plurality of slots (202) between the barriers, a plurality of nozzle holes (203) communicating with the slots, and electrodes formed on the side walls of the elongated barriers. Voltage can be applied to the various barriers through the electrodes in order to cause deflection of the barriers and a corresponding reduction in the cross-sectional area of selected slots, so as to force ink contained in the slots to be jetted through the nozzle holes. In order to provide a uniform ink jet intensity from the outermost slots relative to the inner slots, dummy slots can be formed outwardly of the outermost active slots by providing dummy barriers outwardly of the outermost active barriers. In addition, the nozzle holes are formed in a lid (208). The lid is mounted atop the base. When mounted atop the base, possible breakage of the ends of the barriers is less of a problem. Further, the plurality of barriers can either be mounted to the base by an adhesive, or can be formed integrally with the base. Also, the ink jet head can be formed with two bases, one atop the other, with the barriers of the bases being polarized in opposite directions.
Patent EP-0646504-A2 (EP)
Inventor: MOEDINGER THOMAS
IPC: B60R22/36
Filed: 1994-09-28
Abstract: The belt retractor for restraint systems in vehicles is equipped with an innovative housing structure. The load bearing part of the housing is composed of a casing section (10) which surrounds the locking toothings (26a, 28a) on the circumferences of the flanges of the belt wheel (18) and the end pieces of which are situated one on top of the other, are fastened to one another and form a fastening plate. Essentially only tensile forces occur in the casing section (10) when a heavy load is exerted. The casing section (10) which surrounds the locking toothings (26a, 28a) in this process acts as a belt brake, as a result of which the catches (22, 24) are released. <IMAGE>
Patent EP-0647577-A2 (EP)
Inventor: CINI CLAUDIO
IPC: B65G33/34
Filed: 1994-10-11
Abstract: The conveyor consists of a double-start helical gear (1) made to rotate by a transmission at its motorized support: the hook (3) is supported on the base (5) and pushed along by the flanks (4) of the thread; a toothed section (11) couples with a cog belt (9) over whose reverse side (10) the hook slides in crossing the said toothed section (11). The continuous helical gear is supported by cradles (6) that have an encircling angle greater than 180°. A flexible helical gear is also envisaged, enabling it to follow curved paths, with analogously sized external thread but having an internal helical groove (35), protruding through the base (5) of the thread. The conveyor is particularly suitable for conveying and storing suspended items.
Patent EP-0657702-A2 (EP)
Inventor: LATERNSER ALOIS
IPC: F24F9/00
Filed: 1994-12-07
Abstract: In an air-curtain apparatus for doors, two circulating-air currents (14,15) rotating in opposite directions are produced with the aid of two blower devices (7,8). The direction of rotation of the two circulating-air currents (14,15) is chosen so that an upwardly directed air flow arises between the two circulating-air currents (14,15). This results in air which penetrates from outside being able to pass into the room interior (1) only via one of the blower devices (8) and thus being adequately conditioned. <IMAGE>
Patent EP-0629627-A2 (EP)
Inventor: ROBL JEFFREY A
IPC: C07D/
Filed: 1994-06-13
Abstract: Compounds of the formula
       
 wherein X is O or S-(O) t  ; n is one or two ; m is zero or one ; Y is CH₂, O, or S-(O) t  provided that Y is O or S-(O) t  only when m is one ; and A is
       
 are dual inhibitors of NEP and ACE. Compounds wherein A is
       
 are selective ACE inhibitors. Also disclosed are methods of preparation and intermediates.
Patent EP-0644610-A2 (EP)
Inventor: LEGRADY JANOS
IPC: H01R43/20
Filed: 1994-08-30
Abstract: A surface mounted connector (10) for surface mounting on a generally flat conductive surface of a printed circuit board includes a base (12) which has a generally flat surface suitable for contact with an attachment to a conductive surface of the printed circuit board. An electrical contact (14), which may be in the form of a pin, post, IDC, test point, or receptacle, has at least one portion projecting from the base (12) in a direction normal to the base. At least one bent intermediate connecting portion (16) integrally connects the contact to the base. The contact, base and the bent intermediate connecting portions are all formed from a generally flat sheet of conductive material. A blank for the surface mounted connector, as well as a rolled strip of connectors is disclosed.
Patent EP-0651171-A2 (EP)
Inventor: HARRIS WILLIAM GRAEME
IPC: F16D43/286
Filed: 1994-10-31
Abstract: A fluid-pressure operated clutch includes plungers (21) provided on a drive member (10) for engaging with sockets (25) provided in a driven member (20), the plungers being operated by supplying pressure fluid to a pressure chamber (32). When a predetermined torque limit is reached or exceeded, cooperating cam surfaces on the plunger and sockets cause the plunger to be displaced, opening an exhaust valve (40) for the pressure fluid, and disengaging the clutch.
Patent EP-0664401-A2 (EP)
Inventor: TESTA GIOVANNI MARIA
IPC: F15B11/16
Filed: 1994-12-21
Abstract: A hydraulic control circuit for, for example, working members of earth-moving machines such as backhoe loaders, with a first and a second control section (9,10) for first and second linear hydraulic actuators (1,2; 3-8) through respective first and second hydraulic spool valves (21,22; 23-28), and supply means (11) of a hydraulic fluid under pressure in parallel to the two control sections (9,10) via a feed line (13), and further comprising a load sensing circuit (16) associated with the first and second spool valves. The control circuit comprises a series-parallel connection circuit (36) of the load sensing circuit (16), and additional optional devices ensuring a higher operative functionality of the working members of the machine.
Patent EP-0661542-A2 (EP)
Inventor: NAGAI TAKAAKI
IPC: G01N35/10
Filed: 1994-12-16
Abstract: Disclosed is a washing apparatus comprising; a pipet (3); a pipet-outer-wall washing member (5) embedding a through-hole (15) in which the pipet (3) is loosely inserted, a supply path (16) for supplying washing solution to the through-hole (15), and a discharge path (17) for discharging waste liquid from the through-hole (15); a pipet-interior washing means (4) which is connected to the pipet (3); a washing solution storage chamber (24) connected to the supply path (16) in the pipet-outer-wall washing member (5) and to the pipet-interior washing means (4); a suction means (30) which is connected to the discharge path (17) of the washing member (5) and used for sucking-up waste liquid which exits the through-hole (15) at a side wall thereof; a waste liquid storage chamber (29) which is connected to the discharge path (17); and a drive means (9) which causes either or both of the washing member (5) and the pipet (3) to shift in order to vary the relative position of the washing member (5) versus the pipet (3); wherein the through-hole (15) includes a narrow diametral portion (15a) having a narrow clearance for the pipet (3) and a wide diametral portion (15b), formed below the narrow diametral portion (15a), with a clearance for the pipet (3) that is wider than that of the narrow diametral portion (15a); and wherein the supply path (16) is linked to a side wall of the wide diametral portion (15b), whereas the discharge path (17) is linked to a side wall of the narrow diametral portion (15a).
Patent EP-0675529-A2 (EP)
Inventor: TAKAHASHI SHIGEKI
IPC: H01L29/06
Filed: 1995-03-29
Abstract: A manufacturing method of a MOSFET having a channel part on the side surface of a groove, which does not permit the introduction of defects or contaminant into the channel part and which can make the shape of the groove uniform, is disclosed. An n - -type epitaxial layer (2) having a low impurity concentration is formed on a main surface of an n + -type semiconductor substrate (1). This surface is specified as a main surface, and chemical dry etching is applied to a specified region of this main surface. A region including a surface generated by the chemical dry etching is selectively oxidized to form a selective oxide film to a specified thickness. Following this process, p-type and n-type impurities are doubly diffused from the main surface to define the length of the channel and form a base layer and a source layer. Furthermore, the n + -type semiconductor substrate (1) is specified as a drain layer. After the double diffusion, a gate electrode is formed through a gate oxide film and a source electrode and a drain electrode are formed.
Patent EP-0670281-A2 (EP)
Inventor: INDERST KURT-KLAUS
IPC: B65H54/80
Filed: 1992-08-29
Abstract: The rotary table has a spatially curved band channel (2). The channel is formed by a tubular section, with two directly merging circular arc-shaped parts. Both parts have the same diameter. In the junction area, both arc-shaped parts have a common tangent. One part begins at the intake (5) of the fibre band into the band channel, and/or the other part at the discharge point (6) of the band from the channel.
Patent EP-0693854-A2 (EP)
Inventor: DUFFIELD DAVID JAY
IPC: H04N5/445
Filed: 1995-07-08
Abstract: A system for processing a television signal including a data component, such as extended data services data, includes a decoder for processing the data component to provide data representing time information (EDS Time). A control device (110) responds to the data for modifying time information, e.g., time of day, that is maintained in the system. The time information decoded from the video signal is compared to the time information maintained in the system to determine a time difference. If the time difference (TD) is in a predetermined range, the time difference (TD) indicates that the time information from the television signal is invalid. The control device responds to the time difference being in the predetermined range by preventing modification of the time information maintained in the system. A user may provide an input via a device such as a remote control (125) to control the manner in which the control device (110) responds to the time difference (TD).
Patent EP-0713103-A2 (EP)
Inventor: BRANDT MICHAEL BERNARD
IPC: G01T1/29
Filed: 1995-11-18
Abstract: Apparatus for collecting and detecting radiation emitted by, reflected from, or transmitted through a scanned information medium (9). The apparatus includes a photodetector assembly (7,8) and first (1,2,3) and second (4,5,6) planar mirror assemblies configured to maximize collection efficiency and flare radiation attenuation. The first and second planar mirror assemblies include specularly reflective mirrors including an acrylic substrate having a reflective aluminum coating vacuum deposited on the acrylic substrate.
Patent EP-0721133-A2 (EP)
Inventor: BLAZEY RICHARD N
IPC: G03C1/76
Filed: 1995-12-05
Abstract: A photographic optical system for substantially eliminating non-contact interference fringes in a photographic film comprises: (a) a source of polarized electromagnetic radiation, the radiation being characterized by a wavelength and an incident polarization angle; and (b) a photographic film capable of optical communication with the source and serving to transmit or reflect a portion of the radiation, the film comprising a silver halide emulsion layer on a birefringent support, the support being characterized by a thickness, an emulsion layer interface, an air interface, and birefringence that is dependent on the wavelength of the radiation; wherein the radiation wavelength and incident polarization angle and the support thickness and birefringence are selected such that radiation which penetrates the film and reflects from the air interface exits the support at the emulsion layer interface polarized at an angle substantially perpendicular to the incident polarization angle; whereby the photographic film may be imaged by the source of polarized electromagnetic radiation substantially without formation of non-contact interference fringes. In a process for eliminating non-contact interference fringes, a film that includes a support having a selected thickness and birefringence is exposed by polarized light characterized by a wavelength and an incident polarization angle. Photographic development processing of the exposed film produces an image substantially without fringes.
Patent EP-0685813-A2 (EP)
Inventor: MAKI YASUHITO C O INT PROP DIV
IPC: H04N5/341
Filed: 1995-05-26
Abstract: A solid-state image-sensor comprises a sensor (3), a charge transfer part (5), a plurality of charge/voltage converters (14,15), a comparator and a detector. The sensor has a plurality of arrayed light-receiving portions (2), with each light-receiving portion converting incident light into a signal charge corresponding to the amount of incident light and accumulating the signal charges. The charge transfer part distributes between at least two systems (7,8) the signal charge stored at one light-receiving portion part of the sensor and transferring the signal charge using different numbers of stages. The plurality of charge/voltage converters detect and convert into voltages the signal charges of the at least two systems transferred by the charge transfer part. The comparator carries out a level conversion on each of the outputs of the plurality of charge/voltage converters and the detector detects the level transition point of the comparator output signal and generates a binary signal.
Patent EP-0691761-A2 (EP)
Inventor: YAMAZAKI SHUNTARO
IPC: H04B10/272
Filed: 1995-06-30
Abstract: A fiber-optic access system for subscriber optical communication adopting star type topology in an optical fiber network includes a central office (1), a plurality of optical network units (5-20), an optical interface (3,4), and a signal recognition/reproduction and clock extraction IC (29). The optical interface is provided in the central office (1) and includes an array optical transmission module (3) as a package unit accommodating a plurality of light sources and a plurality of output fiber terminals, and an array optical reception module (4) as a package unit accommodating a plurality of optical sensors and a plurality of input fiber terminals. The signal recognition/reproduction and clock extraction IC (29) is provided to each channel of the array optical reception module (4). The access system provided is of a scale comparable to that of a central office side optical interface of PDS and wide band characteristics comparable to those of a single star type system.