baber/WOPTO huggingface dataset:
Patent EP-0385287-A2 (EP)
Inventor: GIANNIS ATHANASSIOS DR
IPC: C07H9/04
Filed: 1990-02-23
Abstract: The preparation of D-N-mannosamine derivatives from the corresponding glucosamine derivatives is carried out by initially reacting the glucosamine derivative in a Wittig reaction with a phosphorus ylide, with epimerisation, to the corresponding olefinic derivative which, after removal from the reaction mixture, is oxidised with ozone to the mannosamine derivative. The reactions take place with relatively high yields, and the separation of the olefinic mannosamine derivative formed in the Wittig reaction can be carried out by column chromatography with chloroform/methanol (5:1) from the glucosamine derivative or by simple crystallisation when the starting material is a 4,6-O-benzylidene-glucosamine derivative whose benzylidene group can be eliminated simultaneously, by suitable choice of the temperature, in the subsequent ozonolysis.
Patent EP-0389972-A2 (EP)
Inventor: BRAISTED PAUL E
IPC: G01S11/10
Filed: 1990-03-23
Abstract: To reduce error introduced by a local oscillator (26) in the velocity calculations, the receiver has two "tracking channels" (98, 110) and a microcomputer (70). With numbers required to, simultaneously, lock each of the "tracking channels" each to a respective satellite signal, the microcomputer (70) employs a differential doppler technique to calculate the receiver velocity. The microcomputer calculates a number which represents the difference between the apparent doppler frequency shift of the carrier signal which is transmitted by the first "tracking channel" (98) satellite and which is measured over a specific time period and the apparent doppler frequency shift of the carrier signal which is transmitted by the second "tracking channel" (110) satellite and which is measured over substantially the same time period.
Patent EP-0391448-A2 (EP)
Inventor: UCHINO HIROYOSHI
IPC: C01F7/02
Filed: 1990-04-07
Abstract: A method for the production of powder of fine inorganic particles excellent in dispersibility in various solvents from a slurry of said fine inorganic particles containing water, which method comprises preparing a slurry as a raw material by incorporating in said slurry at least one orgaic compound selected from the group consisting of (A) methanol and (B) organic compound capable of dissolving of dissolving water in an amount of not less than 1.0% by weight at 20°C and forming a two-component azeotropic mixture of water and organic compounds having a water content of not less than 4.0% by weight and converting said prepared slurry into powder by the use of a powderization apparatus comprising an externally heatable pipe one end of which serves as a slurry inlet and the other end of which serves as a device for separating the produced powder and a vapor held in a vacuum state and a powder and a powder collecting chamber connected to said separating device.
Patent EP-0394958-A2 (EP)
Inventor: FURUSAWA TOSHIHIRO
IPC: B29C48/395
Filed: 1990-04-24
Abstract: Disclosed is a plasticization method in which a molding material is supplied to a cylinder (1) having built-in a screw (2) to plasticize the molding material, and further, at least one of the cylinder (1) and the screw (2) is resonated to carry out the plasticization of the molding material. Also disclosed is a plasticization method in which the cylinder (1) is vibrated by progressive waves to plasticize the molding material, and an apparatus able to carry out these plasticization methods.
Patent EP-0402844-A2 (EP)
IPC: E03F1/00
Filed: 1990-06-12
Abstract: In a hollow construction at least partly embedded in the ground or surrounded by the ground for the transportation or storage of polluting substances, such as, for example, in a drain channel, it is proposed to embed the wall of the hollow construction (2) in a sealing layer (3) of a non-setting mixture of mineral sealing materials, in particular clay materials such as, for example, montmorillonite, with the addition of mineral substances. In order to obtain as tight a storage of this layer as possible with a high solids content and small pore volume, it is furthermore proposed to pre-mix in the dry state the materials forming the sealing layer and to insert them as a dry mixture; the moisture required for the effectiveness of the mixture as a sealing layer is supplied after insertion. By such embedding of the hollow construction, it is possible, for example in sewage systems, to prevent polluting seepage water from being transported both longitudinally and transversely into the surrounding ground even at any damaged locations possibly occurring, which seepage water escapes through these damaged locations. <IMAGE>
Patent EP-0404113-A2 (EP)
Inventor: NISHIMOTO YOSHIFUMI C O CANON
IPC: H01L41/09
Filed: 1990-06-20
Abstract: Disclosed is a sheet feeding apparatus including a feeding unit for causing vibration surfaces of elastic members for generating travelling vibration waves to apply a feeding force to a sheet (13) so as to feed it and a sheet guide member brought into contact with a side of the sheet to feed the sheet in the sheet feeding direction. The elastic members (11,12) are inclined from the sheet feeding direction so as to apply a force component in the feeding direction and a force component in the guide member direction to the sheet.
Patent EP-0410445-A2 (EP)
Inventor: KITAMURA MITSUO
IPC: H04B10/29
Filed: 1990-07-26
Abstract: An optical repeater provided in an up line (66a) and a down line (66b), the optical repeater includes a first circuit (1, 60a) related to the up line, and a second circuit (2, 60b) related to the down line. Each circuit includes an optical receive/decision circuit (1, 2), a command extraction circuit (61a, 61b), a command detection circuit (63a, 63b), a command switch (64a, 64b) and a supervisory circuit (65a, 65b). Each circuit also includes a noise component processing circuit (62a, SWa, 62b, SWb) which extracts, from the electrical signal, a noise component within a predetermined frequency range excluding a frequency (f₁) of the command signal and determines whether or not the optical signal is input to the optical receive/decision circuit on the basis of the noise component and which prevents the noise component passing through the command extracting circuit from being directly applied to the command detecting circuit when it is determined that no the optical input is input to the optical receive/decision circuit. Each circuit further includes an output circuit which converts the data signal and a supervisory signal into an optical output which is transferred to a corresponding one of the up line and the down line.
Patent EP-0422375-A2 (EP)
Inventor: LINDE HAROLD G
IPC: G03F7/09
Filed: 1990-08-29
Abstract: The present invention provides a novel approach to forming a RIE etch barrier in processes where thermal­ly stable polymeric materials containing free carboxyl groups, such as polyamic acid polymers, are present as dielectric or passivation layers in the electrical device to be fabricated. The present process takes advantage of the discovery that polyamic acids complex with certain metallic cations under slightly acidic conditions to form polyamic acid salts. These salts can be made to further react with a variety of etching gases to form a non-volatile salt or oxide which imparts etch barrier properties to that portion of the polyamic acid layer exposed to the metallic cations.
Patent EP-0417760-A2 (EP)
Inventor: STEALEY MICHAEL ALLAN
IPC: C07D471/04
Filed: 1990-09-12
Abstract: This invention relates to substituted imidazopyridine dervatives having the following formula
      and isomers thereof; 
or a pharmaceutically acceptable acid addition salt thereof: wherein 
R₁ and R₂ are each independently selected from hydrogen; straight or branched chain alkyl of 1 to 15 carbon atoms; cycloalkyl of 3 to 8 carbon atoms; substituted cycloalkyl which can be substituted one or more by alkyl of 1 to 6 carbon atoms; phenyl; 
  substituted phenyl which can be substituted one or more by alkyl of 1 to 6 carbon atoms or halogen; straight or branched alkenyl having 3 to 15 carbon atoms. 
y is phenyl or phenyl substituted once or more than by alkyl of 1 to 6 carbon atoms; alkoxy wherein the alkyl is 1 to 6 carbon atoms; and halogen selected from the group consisting of bromo, fiuoro or chloro. 
m is an integer from 0 to 5. 
n is an integer from 1 to 5. 
R₃ is a group substituted at one or more of the 4, 6 or 7 positions of the pyridine ring said groups being independently selected from hydrogen, alkyl of 1 to 6 carbon atoms; halogen wherein the halogen is selected from bromo, fluoro, or chloro; 
  or alkoxy wherein the alkyl is 1 to 6 carbon atoms; 
R₄ is hydrogen or alkyl of 1 to 4 carbon atoms. 
useful in the treatment of diseases or disorders mediated by platelet-activating factor. This invention also relates to pharmaceutical compositions of such substituted imidazopyridines.
Patent EP-0433612-A2 (EP)
Inventor: KUCHARCZYK ECKHARD
IPC: F24F13/08
Filed: 1990-10-26
Abstract: A weather protection covering device 8 for ventilation devices 4 located in openings or passages in space limitations 3, in particular for forced ventilators 4 which are to be installed in sloping surfaces, such as roofs 3 of conservatories or the like, is proposed. It consists of a cover profile 9 which is mounted in front of the air passage on the outside and which is to be connected directly at its upper longitudinal edge 11 and indirectly at its transverse edges, via adapted end plates 10, to the support of the ventilation device 4, e.g. the space limitation 3, and is to be connected with its lower longitudinal edge 12 indirectly to the support of the ventilation device 4, e.g. the space limitation, and on the one hand extends with its lower longitudinal edge 12 beyond the lower edge region of the ventilation device 4 by a dimension 6 and on the other hand is arranged at a distance 14 from the outside of the space limitation 3.   To increase the serviceability of the weather protection covering device 8, the lower longitudinal edge 12 of the cover profile 9 is designed on a profiled flange 22 which is directed essentially transversely to the outside of the space limitation 3 and which in turn adjoins a transition profiled section 23 which is bent or deflected out of the main plane of the cover profile 9 towards the space limitation 3. <IMAGE>
Patent EP-0431581-A2 (EP)
Inventor: NGUYEN JULIEN T
IPC: H04N3/22
Filed: 1990-12-05
Abstract: A display monitor (7) may be pivoted into either landscape (8) or portrait (9) orientation. The orientation (8,9) of the display monitor is sensed, and the video data sent to the monitor is translated, as necessary, to maintain the displayed image unrotated regardless of the orientation of the display monitor. This translation is performed, in the case of display data represented in a bit map, by altering the addresses in memory of the data for each pixel to be displayed. The circuitry for producing the displayed images is not altered by rotation of the display monitor (7).
Patent EP-0393790-A2 (EP)
Inventor: VAN LEEUWEN PETRUS WILHELMUS N
IPC: C08G67/02
Filed: 1990-04-18
Abstract: Copolymers of carbon monoxide with one or more mono-olefins having at least three carbon atoms in the molecule are prepared by copolymerization of the monomers in the presence of a catalyst composition based upon
     a) a palladium compound,   b) an anion of an acid having a pKa < 2, and   c) a bisphosphine of formula (R²)₂P-R-P(R²)₂, where R is a bivalent bridging group having at least two C-atoms in the bridge, and R² is an optionally polar-substituted aliphatic hydrocarbyl group,    and in the additional presence of a compound of formula C(X)(Y)(OR³)₂ wherein X = H or hydrocarbyl, Y = H, hydrocarbyl or OR³, and R³ = hydrocarbyl.
Patent EP-0382358-A2 (EP)
Inventor: WANNER CHRISTOPHER C
IPC: G06F13/28
Filed: 1990-01-19
Abstract: The computer system disclosed includes a direct memory access (DMA) controller which can provide a 32 bit memory address and yet can also provide 24 bit memory address operation to remain compatible with previous systems. The DMA controller also monitors system operation and if only 24 bit address operations are occurring under the control of an external bus master or the DMA controller, the DMA controller drives the top memory address byte provided to a cache memory controller to help insure cache coherency. Additionally, the DMA controller can provide optimal time transfers for word width transfer between an odd starting memory address and an even starting input/output port.
Patent EP-0382529-A2 (EP)
Inventor: OHSHIMA TOSHIHARU
IPC: G06F12/14
Filed: 1990-02-08
Abstract: A microprocessor includes a CPU (10, 17, 19, 20; 110) executing a program, and a register (25; 140) storing a program status word (PSW) indicative of a status of the program being executed by the CPU. The program status word includes ring information (130) on the program being executed. A store buffer (26; 130) is provided with write data (45) to be written into an external memory (200) and a corresponding address (43, 44) when the CPU executes a write instruction. The store buffer has a specific area (40) in which ring information (ACC RING) on the write instruction is stored. A control part (11) reads out the write data and address from the store buffer and writes the same into the external memory independently of executing the program by the CPU.
Patent EP-0387010-A2 (EP)
Inventor: INADA MASANORI
IPC: H01L21/331
Filed: 1990-03-06
Abstract: An object of the present invention is to suppress the surface recombination over the whole area of the external base of a hetero-junction bipolar transistor (HBT), to keep the current gain large, and to reduce the base contact resistance. The HBT of the invention has, as a surface protective film layer, a p-type semiconductor layer which has the higher portential of the energy conduction band than the base layer on an external base outside the junction between the mesa of the n-type emitter layer and the p-type base layer, and a base electrode thereon. Preferably, it has as a base contact layer a p-type semiconductor layer which shows reduced contact resistance with the base electrode on the surface protective layer comprising a p-type semiconductor layer. More preferabiy, it has a structure wherein a base electrode is formed on the base contact layer in contact with the projection part of the emitter electrode to the base contact layers A method of producing this HBT comprises at least the steps of forming an emitter mask on the portion to be an emitter on a multi-layer structure material having an n-type semiconductor layer for forming a collector, a p-type semiconductor layer or forming a   base, and an n-type semiconductor layer for forming an emitter in this order from the substrate, and etching by using the emitter mask to form an emitter mesa and to expose a base layer; epitaxially forming as a surface protective film layer a p-type semiconductor layer which show the higher potential of the energy conduction band than the base layer on the external base outside the junction part between the emitter mesa and the base layer by using the emitter mask; and epitaxially forming a base electrode on the p-type surface protective film layer.
Patent EP-0392741-A2 (EP)
Inventor: EDWARDS GEOFFREY STEPHEN
IPC: G02B6/42
Filed: 1990-04-05
Abstract: A fibre optic/LED coupling is disclosed in which the light-collecting end of a fibre optic (15) extends into the integral lens (10) of an LED (12) whereby to increase the amount of light collected from the LED chip (16). This is achieved by forming a blind hole (14) in the LED lens (10) into which the light-­collecting end of the fibre optic (15) is inserted.
Patent EP-0392792-A2 (EP)
Inventor: BATEMAN ANDREW
IPC: H04B1/10
Filed: 1990-04-10
Abstract: In deriving a control signal for recombining the parts of the spectrum separated by a frequency notch in transparent tone-in-band signals, cross-correlation products give rise to undesirable frequency and phase jitter. In a receiver which overcomes this problem an input signal E containing the notch is passed to two first mixers 20 and 21 and then portions corresponding to the lower and upper portions of the input spectrum are- selected by two mirror filters 24 and 25 before being translated in frequency by two second mixers 26 and 27 to a final output band in which the notch is eliminated. Two selection filters 30 and 31 select parts of the spectra at the outputs of the first mixers 20 and 21 which correspond to an overlap region of the said lower and upper portions when derived in a transmitter and apply them to control-signal mixer 32. A control signal for the second mixers 26 and 27 is derived from the output of the control-signal mixer 32 by noise filtering and frequency division by two in a circuit 39. The above mentioned problem is overcome by giving the mirror filters 24 and 25 transfer functions H i -(f) and Hi+(f) which are the same as the transfer functions of mirror filters in the transmitter which produced the notch and by giving the selection filters 31 and 30 transfer functions H 2 -(f) and H 2 +(f) which satisfy the relationships     and
Patent EP-0399644-A2 (EP)
Inventor: YAMAMOTO KAZUHIRO
IPC: A23B7/10
Filed: 1990-04-10
Abstract: A preservative for plants is described whose active ingredients are the compounds selected from the group consisting of olefin compounds and salts and esters thereof, N-(2-chloro-4-pyridyl)ureas, dipicolinic acid and derivatives and salts thereof, epoxy compounds and salts and esters thereof, and SH-reagents. The preservative is usable for keeping the freshness of plants, in particular fruits, vegetables and cut flowers, and cut flowers for a long period of time.
Patent EP-0411933-A2 (EP)
Inventor: NAKAZAWA KIYOSHI
IPC: G09G3/36
Filed: 1990-08-01
Abstract: An active matrix display apparatus comprising pixel electrodes arranged in a matrix fashion on an insulating substrate, storage capacity electrodes ar­ranged opposite to said pixel electrodes, storage capacity lines (8) connected individually to said storage capacity electrodes, a common main line (9) connected to said storage capacity lines, at least one branch line (17) branched from said common main line, and a branch terminal (16) formed at the leading end of said branch line, whereby a signal delay can be minimized.
Patent EP-0414464-A2 (EP)
Inventor: NAKANO TETSUYA
IPC: G03G9/087
Filed: 1990-08-20
Abstract: In an electrophotographic toner, by using as the binder resin a styrene/acrylic resin in which in the gel permeation chromatogram, a high molecular weight peak value appears in a molecular weight region higher than 1 x 10⁵, a low molecular weight peak value appears in a molecular weight region of from 2 x 10⁴ to 500, a minimum value appears halfways between the two peaks and the ratio (V/P) of the area of the valley to the peak area is lower than 0.3, the internal cohesive force of the binder resin for the toner can be prominently improved while maintaining the low-temperature fixing property and offset resistance at high levels, and pulverization of the toner and formation of the spent toner can be prevented during the developing operation and the durability of the toner can be improved.
Patent EP-0455905-A2 (EP)
Inventor: VAN NESS JEFFREY
IPC: G01N33/58
Filed: 1990-09-04
Abstract: Compositions and methods for covalently immobilizing an oligonucleotide onto a polymer-coated bead or similar structure are described. Specifically, the polymer-coated bead or similar structure possesses a large number of activatable moieties, preferably primary and secondary amines. An oligonucleotide is activated with a monofunctional or multi functional reagent, preferably the homotrifunctional reagent cyanuric chloride. Additionally, dichlorotriazine oligonucleotides and processes for activating oligonucleotides by treatment with cyanuric chloride are included in the present invention.
Patent EP-0398851-A2 (EP)
Inventor: TREVISAN LUCIO T P S R L
IPC: A47K10/38
Filed: 1990-05-17
Abstract: A paper roll-holder on a wall-mounting base (1), for blotting paper suitable to kitchen uses, makes easier the paper tearing, having pivotedly mounted on said base (1) two L-shaped rods (3, 4). The respective pivoting axis (3a, 4a) is parallel to the longer, transverse leg (3c, 4c) of the formed L and one (3) of said rods has at the free end of the transver­se leg (3c) a short extension (3b) which is bent with right angle and directed parallel to the shorter leg (3b) of connection to the pivoting axis (3a). The rod (3) is designed to serve as a support of a paper-roll (R) and the other (4) to rest against it from above.
Patent EP-0454093-A2 (EP)
Inventor: TSUCHIYA YUKIHARU
IPC: B24B41/06
Filed: 1991-04-24
Abstract: A spindle apparatus for supporting and rotating a workpiece in a grinder. The spindle apparatus comprises a workpiece spindle (9) rotatably supported on a spindle head (10) and driven for rotation by a motor (8), and a spindle plate (24) mounted to the front end of the workpiece spindle and including an eccentric drive pin (23). The workpiece spindle has a bore in which a ram (28) is axially movable. A center (29) is fit in the front end of the ram. A unit is provided to advance the ram to engage with one end of the workpiece when the workpiece is to be supported. A rotary sleeve (32) is rotatably supported on the front end of the ram and includes an engagement portion which is displaceable in the axial direction of the spindle and engageable with the drive pin in the direction of rotation. A driving unit (52) is mounted to the front of the rotary sleeve to engage the workpiece in the direction of rotation when the ram is in its advanced position to thereby transmit rotation.
Patent EP-0459182-A2 (EP)
Inventor: FEDERIGHI ALBERTO
IPC: A61J1/00
Filed: 1991-05-07
Abstract: Containers for lyophilized pharmaceutical products to be administrated in drops, consist of two bottles (1, 8). The first one (1), that initially contains the lyophilized product (2), is made of rigid material and is provided with a hermetically sealed cap (3) that can be partially ripped open and with a rubber stopper (7) interposed between the cap (3) and its own open edge. The second bottle (8), that is designed for containing initially the solvent (10) is made of compressible material and is provided with a spout (9). The first bottle (1) has a hole (6) in the stopper (7) designed for receiving the spout (9).
Patent EP-0474153-A2 (EP)
Inventor: TANAKA FUMIHIRO
IPC: B41J2/52
Filed: 1991-09-02
Abstract: An output apparatus which can output image data at a plurality of resolutions comprises: a circuit to decide a presumed execution time according to the resolution on the basis of the input data to be generated; and a circuit to set an output resolution on the basis of the presumed execution-time determined. With the apparatus, an image can be printed at the highest resolution which can be reproduced within the set print execution time.
Patent EP-0494355-A2 (EP)
Inventor: GOERL UDO DR
IPC: C08K5/14
Filed: 1991-11-11
Abstract: The invention relates to moulding compositions which can be vulcanised with peroxides by the action of heat and contain a thiocyanatopropyltrialkoxysilane, and to a process for their preparation.
Patent EP-0488127-A2 (EP)
Inventor: POWERS ROBERT HYDE
IPC: G03B27/34
Filed: 1991-11-25
Abstract: A graphic camera/platemaker optical system is described having a copyboard for an original subject, a lens, an image plane and a mirror. The copyboard, lens and mirror are independently movable such that they may move in different directions in order to produce a variable scale image or reproduction of the original onto the image plane. The movable elements are positioned by separate stepping drives controlled by a common microprocessor.