baber/WOPTO huggingface dataset:
Patent EP-0436297-A2 (EP)
Inventor: FEIST WOLFGANG M
IPC: H01L29/73
Filed: 1990-11-27
Abstract: A structure forming a MOSFET and BJT transistor for a BiCMOS integrated circuit allows both transistors to be fabricated in a relatively small space. Size reduction is achieved by forming the inactive base region of the BJT and the drain of the MOSFET with one doped region (32). Additionally, the collector (24) of the BJT and the source of the MOSFET (34) are contiguously formed, thereby eliminating the space occupied by an insulator. Metal contacts (42a, 42b, 42c) are provided on silicide layers over the continguous collector (24) and source (34), the gate, and the emitter (28) respectively. The emitter (28) is formed in polysilicon immediately above the active base (22). A resistive film (44) may be applied over an insulative side wall shoulder (38c) to couple the emitter contact (42c) to a silicide layer (40c) over the drain (32).
Patent EP-0435669-A2 (EP)
Inventor: LARI FERDINANDO
IPC: H04Q3/42
Filed: 1990-12-27
Abstract: An output stage of a telephone interface circuit comprises an output pair of operational amplifiers (A₁, A₂) controlled by a controlling operational amplifier (A₃) which has a non-inverting input terminal (+) connected to a source of signals. The inverting input terminal (-) and the output terminal of the controlling operational amplifier (A₃) are connected to a reference voltage (V REF ) through a constant current generator (I p ) and a first resistance (R₁), respectively. A second resistance (R₂) is connected between the output and inverting input terminals of the amplifier (A₃). Another resistance (R₄) is connected between the inverting input terminal and the constant current generator. A diode (D₁) and a Zener diode (D Z ) are connected in series between the constant current generator and the output terminal.
Patent EP-0395476-A2 (EP)
Inventor: YAMAZAKI HIROSHI
IPC: D06M101/16
Filed: 1990-04-20
Abstract: Novel wound dressings and methods and systems for preparing them are provided herein. The wound dres­sing includes a substrate at least part of which is cellulosic and which has been chemically modified to have ionic-adsorbing sulfate sites thereon. A ca­tionic form of a physiologically- or biologically-­active agent is adsorbed therein. Upon contact with body exudate from wounds to which such wound dress­ing is applied, the physiologically- or biologi­cally-active agent is released in a controlled man­ner by ion exchange with the ions in the exudate, in proportion to the amount of the exudate. This is due to the fact that the adsorption is by means of an ionic bond. The strength of such ionic bond is such that the controlled release is achieved. This controlled release thus reduces unnecessary exposure of unwounded skin surface to the physiologically-or biologically-active agent. Commercially-viable me­thods and systems are also provided for producing substrates for the production of such wound dress­ings. The method includes the steps of soaking the substrate by passing the substrate through a bath of an appropriate chemical reactant solution, and squeezing the excess solution from the soaked sub­strate to provide a wetted substrate. In the im­proved method, the following additional steps are carried out, namely, the wetted substrate is sup­ported on a suitable backing member which sub­stantially inhibits the escape of such solution from the environment of the wetted substrate, preferably by first cutting the wetted substrate to a selected length. The so-supported substrate is cured in a heating means to provide the derivatized substrate. The so-cured derivatized substrate is washed. Fi­nally, the washed derivatized substrate is suitably dried.
Patent EP-0438040-A2 (EP)
Inventor: WANGEBY PERCY M
IPC: F16K47/02
Filed: 1990-12-17
Abstract: A device in a butterfly valve comprises a valve housing (101) with an inlet (103) on the pressure side of the valve, an outlet (104), and a flow passage (107) therebetween, a valve body with a rotatable closure member in the form of a butterfly valve disc (108) with a front side facing the pressure side of the valve and a rear side turned from the pressure side in the closed position of the valve disc, a valve seat (105) in the valve housing, a rotatable shaft (110) for turning the butterfly valve disc about an axis of rotation (112) between an open position, in which the butterfly valve disc does not close the flow passage between the inlet and the outlet, and a closed position, in which the butterfly valve disc is blocking all flow through said passage by sealing contact in a plane (B) between a circumferential sealing surface (114) on the butterfly valve disc and a sealing surface (106) on the valve seat, and attenuating means (120A, 120B) provided on the butterfly valve disc within that space having the shape of a part of a sphere which is generated by the contour of butterfly valve disc when the butterfly valve disc is turned about the axis of rotation by the rotatable shaft. A first attenuating means (120A) is provided on the rear side of the butterfly valve disc but essentially only on that half of the disc which is turned towards the pressure side as the valve is being opened from the closed position, defining a space having the substantial shape of a spherical wedge, or a part of a spherical wedge, said wedge having its edge on the axis of rotation of the butterfly valve disc and having an edge angle (V1, V2) which is at least 30° but not more than 120°.
Patent EP-0446596-A2 (EP)
Inventor: ETZKORN HEINZ WERNER DR
IPC: C23C16/44
Filed: 1991-02-02
Abstract: Es wird ein PCVD-Verfahren zur Herstellung eines auf der Innen- und/oder Außenfläche mit einem dielektrischen und/oder metallischen Schichtsystem versehenen annähernd kalottenförmigen Substrats (1), insbesondere eines Reflektors mit innenseitiger dielektrischer Kaltlichtspiegelbeschichtung, beschrieben. Des weiteren werden für die Durchführung des erfindungsgemäßen Verfahrens besonders geeignete Vorrichtungen beschrieben. Nach der Erfindung wird mit Hilfe eines Verdrängungskörpers (6) die Dicke der zu reagierenden Gasschicht über der zu beschichtenden Fläche so eingestellt, daß das Ausmaß der in der Gasschicht während einer Plasmaphase auftretenden Homogenreaktion ("Glasrußbildung") für die gewünschte Schichtqualität unschädlich bleibt. Durch Anwendung eines PCVD-Verfahrens können nahezu beliebig geformte, stark gewölbte, großflächige Substrate ohne komplizierte Substratbewegung auf ihrer Innen-und/oder Außenfläche mit einer gleichmäßigen Beschichtung von höchster optischer Qualität sowie mechanischer, thermischer und chemischer Stabilität versehen werden. Bei Anwendung eines PICVD-Verfahrens können durch entsprechende Formgebung des Verdrängungskörpers in an sich bekannter Weise vorgegebene axiale und azimutale Schichtdickenprofile aufgeprägt werden.
Patent EP-0444575-A2 (EP)
Inventor: AMINDER CHRISTER
IPC: G12B17/02
Filed: 1991-02-25
Abstract: Magnetoelastic torque transducer (1,2) shielded from the influence of static of quasi-static magnetic fields (9) with a driving shaft (1) between the driving source (3) and the load (4) being divided in such a way that the shaft (3) between the driving source and the transducer shaft and the shaft (4) between the transducer shaft and the load, respectively, are provided with a shaft part (7,8) of non-magnetic material and that the transducer and the transducer shaft including the non-magnetic shaft parts are surrounded by an external magnetic shield (5) provided with flanges (10,11) such that a very small air gap exists between the flanges and the non-magnetic shaft parts.
Patent EP-0463489-A2 (EP)
Inventor: EMS HERBERT
IPC: B23K9/095
Filed: 1991-06-13
Abstract: The invention relates to a source of welding current with ancillary units, such as torch height adjustment devices, a wire feed device, gas regulators, drives, sensors and the like, which are connected to one another via leads. In order to simplify signal processing in the case of sources of welding current the invention proposes that the signal or data transmission for control and/or adjustment of and/or data acquisition on the ancillary units should be effected via leads which form a local area network formed by ring, star or bus systems or by a hybrid of these systems. <IMAGE>
Patent EP-0470381-A2 (EP)
Inventor: KAJINO TAKAYOSHI
IPC: A61Q5/06
Filed: 1991-07-09
Abstract: The hair treatment composition of the present invention comprises (A) 2-benzyloxyethanol and (B) one or more polymers selected from the group consisting of anionic polymers, cationic polymers and amphoteric polymers. 
     The hair dye composition of the present invention comprises (a) an acidic dye, (b) 2-benzyloxyethanol and (C) a water-soluble polymer compound.
Patent EP-0470455-A2 (EP)
Inventor: WALTER MANFRED DR
IPC: C08J9/00
Filed: 1991-07-26
Abstract: Bead-form, antistatic, expandable styrene polymers containing 
 
  a) a styrene polymer, 
  b) from 0.5 to 3% by weight, based on a), of a coating containing 
 
  b1)from 10 to 70% by weight of finely divided silica, 
  b2)from 20 to 80% by weight of a hydroxyl-containing quaternary ammonium salt and, if desired, 
  b3)from 0.05 to 20% by weight of a conventional adhesion promoter and 
  b4)from 10 to 30% by weight of a conventional agent for shortening the cooling time, 
 
  c) from 1 to 8% by weight, based on a), of a C3- to C6-hydrocarbon as blowing agent, and, if desired, 
  d) conventional additives in effective amounts.
Patent EP-0442690-A2 (EP)
Inventor: HOTCHKISS THOMAS R
IPC: G06F12/0855
Filed: 1991-02-12
Abstract: A data cache store buffer can be used to buffer stores between a CPU and its data cache to increase processor capability and reduce performance degradations caused by stores.
Patent EP-0458477-A2 (EP)
Inventor: DODDS DAVID ROBERT
IPC: G11B23/033
Filed: 1991-04-30
Abstract: Bernoulli stabilization is applied to flexible media in an information storage system by means of a stabilizer (12) having a body on which a first surface is formed of a contour sufficient to provide Bernoulli stabilization to media (20, 22) passing thereover. The stabilizer (12) is positioned so that the first surface is proximate backside of the media. In one embodiment, the first surface has a number of grooves (56) which channel air passing between the first surface and said backside. In those situations where the flexible media includes two flexible disks (20, 22), each having an active side and a backside and where the disks are oriented so that the backsides face one another. The body further includes a second surface of a contour sufficient to provide Bernoulli stabilization to media passing thereover. In such situations, the stabilizer (12) is positioned between the disks (20, 22). In a still further embodiment the disks are rotatably mounted in a cartridge (10) which includes a housing having an opening (26) along one side thereof to allow access to the disks (20, 22) and a separator (34), attached to the housing and positioned between said disks, for providing separation of the disks. In such a situation when the cartridge is positioned in relation to the information system the space between the disks is accessible.
Patent EP-0461880-A2 (EP)
Inventor: MURABAYASHI NOBORU
IPC: H04N5/928
Filed: 1991-06-12
Abstract: An apparatus for selectively recording a digital information signal on a first magnetic tape cassette having a tape with a first characteristic or a second magnetic tape cassette having a tape with a second characteristic, the digital information signal selectively having a recording mode of a first standard or a recording mode of a second standard is comprised of a first sensor for detecting the kind of the magnetic tape cassette, a second sensor for detecting the kind of the recording mode, and a controller for controlling value of recording current for the digital information signal in response to the outputs of the first sensor and the second sensor.
Patent EP-0461881-A2 (EP)
Inventor: MUSTONEN TARJA
IPC: C09J123/02
Filed: 1991-06-12
Abstract: The invention relates to a process for the modification of an olefin polymer to form a coupling agent by grafting it with an unsaturated acid or acid derivative in the presence of a free-radical initiator. The process comprises stages at which
     a) the olefin polymer, the unsaturated acid or acid derivative and a first free-radical initiator are heated together to a first temperature, at which the first free-radical initiator substantially breaks down into free radicals, and   b) the reaction mixture derived from stage a) is heated together with a second free-radical initiator to a second temperature, at which the second free-radical initiator substantially breaks down into free radicals. By the process, olefin polymers can be modified effectively without their macromolecules degrading excessively.
Patent EP-0478312-A2 (EP)
Inventor: KAGAMI NAOYUKI SHOUNANLIFETOWN
IPC: G11B7/09
Filed: 1991-09-25
Abstract: The invention relates a method for initialising the position of an optical head wherein an optical head can be positioned about the centre of the optical disk by using tracking error signals which are generated when a laser beam crosses guide grooves of the optical disk. The head is first positioned to the innermost position and then moved outward until tracking error signal is detected, that is, until it enters data area. The target is determined in relation to the distance the head has moved when TES is detected. There is provided a method for initialising an optical disk drive apparatus comprising steps of holding an optical pickup against the innermost of an optical disk, moving the optical pickup slowly to the outer of the disk until it detects tracking error signals, accelerating it when it detects tracking error signals, decelerating it thereafter, and finally stopping it to be positioned about the centre of the disk.
Patent EP-0509248-A2 (EP)
Inventor: GERHARD ANTON
IPC: F16B13/06
Filed: 1992-03-14
Abstract: An expanding dowel consists in the normal manner of an expanding sleeve (1), an expanding bolt (2) and an expanding cone (3') which is used for expanding the expanding sleeve (1) and can be inserted into the expanding sleeve (1) by means of the expanding bolt (2). In order to reduce the use of material for the expanding cone (3') and the production cost, the expanding cone (3') is formed from sheet metal. It has a cylindrical section (15') from whose edges (18', 19') to lugs (37, 38) are bent outwards, which lugs are welded to one another at their abutting joint (39). In consequence, a firm intrinsic connection of the expanding cone (3') is created and, in addition, a stop (21') is created which is guided in a slot of the expanding sleeve (1) as a lock to prevent rotation. <IMAGE>
Patent EP-0507358-A2 (EP)
Inventor: OGAWA SEIICHI
IPC: F02M35/104
Filed: 1990-09-07
Abstract: An intake manifold adapted for use with an engine having two intake ports for each cylinder and comprising an aluminum plenum chamber (1) having an air inlet (3) and air outlets twice the number of cylinders of the engine in number, and a plurality of branch pipes (2A-2D) of wrought aluminum connected to the respective air outlets of the plenum chamber. One of the two branch pipes to be connected to the intake ports for each cylinder is larger in the length of the channel than the other branch pipe. The two branch pipes are equal in the cross sectional area of the pipe channel, or the branch pipe having the longer channel is smaller than the other branch pipe in the cross sectional area of the channel. The roughness of the inner surface of each branch pipe is up to 10 µm, preferably up to 5 µm, more preferably up to 1 µm, in terms of center line average height.
Patent EP-0534507-A2 (EP)
IPC: H01J13/34
Filed: 1989-09-05
Abstract: An orientation independent ignitron (OII) has an anode (32), a cathode (2) with a plurality of spaced grooves (4) facing the anode, and a cooling mechanism (8) which causes liquid metal vapor to condense as a film which is retained on the grooved cathode surface by surface tension and forms reservoirs within the grooves. The cathode and anode are preferably cylindrical and coaxial, with the inner surface of the cathode having parallel annular grooves facing the outer anode surface. Igniters are preferably introduced into convex areas between adjacent grooves along radial lines, with individual igniters (10) providing ignition for a pair of adjacent grooves. The igniters can be operated simultaneously or in sequence, depending upon the desired repetition rate and current capacity. A liquid metal film is initially formed by placing the OII on its side, introducing liquid metal into the lower ends of the grooves, and causing arcing between the anode and liquid metal to flow the liquid metal and wet the adjacent groove surface. Some of the liquid metal also evaporates and re-condenses on other portions of the cathode, establishing a continuous film.
Patent EP-0495634-A2 (EP)
Inventor: BRINKERHOFF RONALD J
IPC: A61B17/34
Filed: 1992-01-14
Abstract: A safety trocar (1) is provided which includes a spring-loaded shield (30) that shields the cutting tip (28) of the obturator after the obturator penetrates tissue (T). The distal end of the shield is hemispheric in profile and slides within cutting tip. The rounded distal end enables the shield to spring forward to shield the cutting tip as soon as the tip perforates the tissue. In other embodiments, positive mechanical means effect shielding, using a groove (134) which forms a cam surface to be followed by a pin (126) provided on the obturator. 
     Control means are disclosed whereby the obturator tip is caused to be exposed from the shield by motion relative thereto, when shield and obturator are placed in the cannula.
Patent EP-0510823-A2 (EP)
Inventor: BRUXVOORT WESLEY J
IPC: B24D3/00
Filed: 1992-04-01
Abstract: An abrasive article comprising a coated abrasive bonded to a substrate by means of a metallic adhesive and a method for producing the abrasive article by heating.
Patent EP-0522843-A2 (EP)
Inventor: NISHIURA YOZO
IPC: G01C19/72
Filed: 1992-07-08
Abstract: A fiber-optic gyroscope having a single mode fiber coil for sensing the rotation suffers from drift or fluctuation of scale factor of the output signals owing to spontaneous rotation of polarization of beams propagated in the fiber coil. Thus, two depolarizers are required in front of and at the back of the polarizer to avoid the fluctuation. The depolarizer of prior art consists of two birefringent materials twistedly connected with each other at an about 45 ° inclination angle between the principal axes of one and the principal axes of the other. A conventional fiber-type depolarizer has two polarization maintaining fibers connected together. A new, simplified depolarizer is proposed. The depolarizer is built by glueing a polarization maintaining fiber (A) to an end of the polarizer (19) with an about 45° inclination angle between the principal axes of the fiber and the principal axes of the polarizer. The depolarizer allows us to dispense with one polarization maintaining fiber and spare the operation for connecting fibers by one.
Patent EP-0527648-A2 (EP)
Inventor: BARRY CAREY NEILSON JR
IPC: C07C217/50
Filed: 1992-08-13
Abstract: A poly(oxyalkylene) substituted xanthene colorant is provided having the following structure :
       
where Y is a poly(oxyalkylene) substituent having a straight or branched polymer chain of from 3 to 400 monomer units selected from ethylene oxide, propylene oxide, butylene oxide and glycidol ;
     R 1  and R 2  are independently selected from H, C1-C8 alkyl, aryl and Y, provided that if either R 1  or R 2  are Y, the other is not H ;   R 3  and R 4  are independently selected from H, C1-C4 alkyl, C1-C4 alkoxy, Cl, Br and I;   X is selected from H, S0 3 -, CO 2 - and COOR 5 , where R 5  is C1-C4 alkyl or aryl ; and   each Z is independently selected from S0 3 -, CO 2 -, COOR s , Cl, and OH, where R 6  is C1-C4 alkyl or aryl, and n is 0, 1, 2 or 3.   
     The colorant is synthesized using a novel poly(oxyalkylene) substituted aminophenol intermediate.
Patent EP-0538044-A2 (EP)
Inventor: STONE J JAMES
IPC: B23K26/06
Filed: 1992-10-15
Abstract: Laser marker apparatus for marking indicia onto a substrate includes an exit lens having a focal length, a plurality of lasers (20), a plurality of turning mirrors (24), and at least one directing mirror (26). The surface (64) of the substrate to be marked is positioned generally at the focal plane of the lens (40). The plurality of lasers is arranged so that their energy output beams are oriented in a generally parallel relationship. The plurality of turning mirrors are positioned along the beam path of each respective laser and are oriented to reflect the output beams at predetermined angles. The directing mirrors redirect the output beams to form a column of spaced apart spots on the substrate. One of the directing mirrors is then moved in a first direction so as to form another column of spots on the substrate. Movement in another direction forms a third column of spots on the substrate. The columns are interleaved to create a composite column of high resolution for marking Alpha-numeric characters.
Patent EP-0544427-A2 (EP)
Inventor: NAKANISHI KAORU
IPC: G09G3/20
Filed: 1992-11-13
Abstract: A display module drive circuit has a gate driver and a source driver. The source driver has a shift register (1), a sampling memory (2), a hold memory (3), a timing signal generating circuit (4), a voltage control circuit (5), and an output voltage generating circuit (6) having a capacitor and a switch. The timing signal generating circuit (4) generates timing signals (T₀-T₇) having different pulse widths in each of horizontal periods. The number of the timing signals (T₀-T₇) depends on the number of density levels of an image to be displayed. Upon receipt of digital video signals (HnD₀, HnD₁, HnD₂) and the timing signals (T₀-T₇), the voltage control circuit (5) selects one of the timing signals (T₀-T₇) based on the contents of the video signals (HnD₀, HnD₁, and HnD₂) in each horizontal period and outputs a control signal (CON1, CON2) at a specified level for a period corresponding to the pulse width of the selected timing signal. The capacitor of the output voltage generating circuit (6) is charged with an external power voltage while the control signal (CON1, CON2) is being received by the switch, so that a drive voltage is generated. The external power voltage is supplied from an external power source offering an electrical potential which becomes higher with time.
Patent EP-0573750-A2 (EP)
Inventor: CARLSSON KURT HAKAN
IPC: F24C7/02
Filed: 1993-03-30
Abstract: A microwave oven with an oven cavity and a microwave feed system which produces a microwave distribution of polarized microwaves with essentially defined field vector orientations relative to one of the walls of the cavity. A zone defining an expansion of volume which opens into the cavity and whose dimensions are tuned to the wavelength and field distribution in the cavity, is disposed in a wall of the cavity. The expansion does not affect the effective field distribution in the cavity and can be used for concealed placement of a grill element or light source.