baber/WOPTO huggingface dataset:
Patent CA-2304200-A1 (CA)
Title: Optical waveguide component
Inventor: HOEKSTRA TSJERK HANS
IPC: G02B6/122
Filed: 1999-06-09
Abstract: The invention pertains to an optical waveguide component comprising a substrate, a core-matching refractive index lower cladding layer, a core layer, a core-matching refractive index upper cladding layer, a low refractive index upper cladding, wherein the core-matching refractive index lower cladding layer is deposited directly onto the substrate and has a thickness sufficient to avoid substantial capture and/or absorption by the substrate of a guided mode in the core layer, whereas slab modes, quasi-guided modes and/scattered light leak to the substrate. The components according to the invention allow high switching speeds and high confinement of a guided mode on the one hand and, on the other hand, absorption by the substrate of stray-light and radiation modes, which, in turn, leads to improved optical devices, such as optical switches with improved isolation.
Patent CA-2305106-A1 (CA)
Title: Polishing pads useful in chemical mechanical polishing of substrates in the presence of a slurry containing abrasive particles
Inventor: GILBRIDE DAVID S
IPC: B24B37/24
Filed: 2000-04-13
Abstract: A polishing pad for polishing semiconductors and other planar substrates in the presence of a slurry comprising abrasive particles and a dispersive agent is disclosed. The polishing pad includes a soluble component, preferably fibrous, within a polymer matrix component. The fibrous component includes fibers soluble in the slurry sufficiently to provide a void structure in the polishing surface of the pad. The void structure enhances the polishing rate and uniformity by increasing the mobility of the abrasive particles while reducing scratching of the polished surface. Additives that further enhance polishing and/or assist in the removal of residues generated during polishing, such as surfactants and removers, are optionally incorporated in the fibrous substance or topographically coated on the fibrous substance.
Patent CA-2308702-A1 (CA)
Inventor: TROLINDER NORMA L
IPC: C12N15/82
Filed: 1998-10-19
Abstract: The present invention relates to a method for producing a transgenic plant in which a transforming agent such as a recombinant Agrobacterium or an isolated DNA molecule capable of conferring a desired phenotypic trait is injected into plant tissues using aneedleless injection device. A preferred embodiment of the method provides the precise delivery of the transforming agent to floral tissues of a plant, allowing the direct insertion of the DNA of the transforming agent into germline cells of the plant that develop into seeds.  This embodiment provides a more efficient method of transformation and subsequent regeneration of a transgenic plant.
Patent CA-2311401-A1 (CA)
Inventor: PARROTT DAVID TERENCE
IPC: A61Q15/00
Filed: 1998-11-18
Abstract: Deodorant and antiperspirant compositions can suffer from perceived irritancy when applied topically, which can be ameliorated or overcome by incorporating within the composition borage seed oil, and especially an amount selected in the range of from 0.5 to 10 wt.%. The compositions advantageously comprise an aluminium or aluminium-zirconium active.
Patent CA-2311412-A1 (CA)
Title: Bimetallic catalysts for ethylene polymerization reactions activated with paraffin-soluble alkylalumoxanes
Inventor: KISSIN YURY VIKTOROVICH
IPC: B01J31/22
Filed: 1998-11-17
Abstract: A catalyst and method of making it are disclosed. The catalyst is made by combining two components. The first component is made by slurrying a hydroxyl group containing support in a nonpolar solvent, adding a dialkylmagnesium compound, adding an alcohol, adding a non-metallocene transition metal compound, removing the solvent, then reslurrying the dried product in a nonpolar, nonaromatic solvent. The second component is made by contacting in a nonpolar, nonaromatic solvent a group 4 metallocene and a trialkylaluminum compound. The second component is then added to the first component, the solvents removed, and an alumoxane added in which at least one of its repeating ¢A1O(R)! units has as its alkyl group an alkyl group of at least two carbon atoms.
Patent CA-2317877-A1 (CA)
Title: Case sealer base leveler
Inventor: SAMBUCA ANTHONY J JR
IPC: A47B91/02
Filed: 2000-09-08
Abstract: A leveling or elevational positional adjustment system comprises a leg frame member, a leg extension member, and a leg extension stop member. The leg frame member comprises an external corner component having a substantially arcuate configuration, and an internal cross-plate component disposed across the interior of the corner component. The leg extension member has an arcuate cross-sectional configuration essentially matching that of the external corner component of the leg frame member so as to be disposed in surface-to-surface contact with the external corner component of the leg frame member when the leg extension is inserted into the leg frame member, and the leg extension stop member has an external arcuate cross-sectional configuration also substantially matching that of the leg extension member. An actuator screw is mounted upon the cross-plate component of the frame member and is engaged with the leg extension stop member so as to effectively force the leg extension stop member into surface-to-surface contact with the leg extension member such that the leg extension member is in turn forced into surface-to-surface contact with the leg frame member. The leg extension member is positionally adjusted to, and retained at, any particular longitudinal position with respect to the leg frame member simply by untightening the actuator screw, adjusting the disposition of the leg extension member relative to the leg frame member, and retightening the actuator screw.
Patent CA-2318580-A1 (CA)
Title: Pharmaceutically active compounds and methods of use thereof
Inventor: LEVY STUART B
IPC: A61P31/04
Filed: 1999-01-22
Abstract: The invention includes new substituted tetracycline-type compounds that exhibit significant antibacterial activity, including against both gram-positive and gram-negative bacteria. It has been found that compounds of the invention are highly active against both gram positive and gram negative tetracycline sensitive and tetracycline resistant bacteria.
Patent CA-2320480-A1 (CA)
Inventor: RAJAPAKSE RAVI
IPC: H04W64/00
Filed: 1999-10-19
Abstract: A method for determining locations of mobile transmitters in a wireless communication system calculates a signature from signals received at an antenna array from the mobile, and matches the signature with calibrated signatures stored in a database to estimate the location of the mobile. The signature contains information characterizing the spatial channel between the mobile and the antenna array. An apparatus (112) implementing the method comprises an antenna array (116) and multi-channel receiver (118) for coherently receiving multi-dimensional signal vectors from a mobile transmitter. A processor (120) calculates a signal signature from the received signal vectors, which compared with calibrated signatures stored in a memory (122) to identify calibrated signatures that are similar to the calculated signature, and which corresponds to the likely locations of the mobile transmitter. Thus, the location of the transmitter can be accurately determined from the signals received at a single base station, even in a severe multipath environment.
Patent CA-2320509-A1 (CA)
Title: Gas conversion using synthesis gas produced hydrogen for catalyst rejuvenation and hydrocarbon conversion
Inventor: DENTON ROBERT DEAN
IPC: C07C1/04
Filed: 1999-02-05
Abstract: A gas conversion process in which both hycdrocarbons and hydrogen are produced from a synthesis gas feed which comprises a mixture of H2 and CO, uses hydrogen from a portion of the feed for one or more of (i) hydrocarbon synthesis catalyst rejuvenation and (ii) hydroconversion upgrading of at least a portion of the synthesized hydrocarbons. Hydrogen is produced from a slipstream of the synthesis gas fed into the hydrocarbon synthesis reactor by one or more of (i) physical separation means such as pressure swing adsorption and (ii) chemical means such as a water gas shift reactor. If a shift reactor is used due to insufficient capacity of the synthesis gas generator, physical separation means such as pressure swing adsorption will still be used to separate a pure stream of hydrogen from the shift reactor gas effluent.
Patent CA-2324171-A1 (CA)
Title: Method and device for coupling spectacles and clip-on sunshades with each other
Inventor: LEE SUK JAE
IPC: G02C9/00
Filed: 2000-10-23
Abstract: Disclosed is a method and a device for coupling spectacles and clip-on sunshades with each other, the spectacles having first lens frames connected together at their inner ends by a first nose frame, lenses fitted into respective first lens frames and arms mounted to outer ends of the first lens frames through hinges, the clip-on sunshades having second lens frames connected together at their inner ends by second nose frame and tinted lenses fitted into respective second lens frames. The device comprises a permanent magnet disposed to one of the spectacles and the clip-on sunshades at a predetermined position in a manner such that the soft magnetic member of the other of the spectacles and sunshades can be mated with the permanent magnet thereby to couple the spectacles and the clip-on sunshades with each other.
Patent CA-2324795-A1 (CA)
Title: Inserted laser welded blanks
Inventor: BLACK GARY KEITH
IPC: B23K26/044
Filed: 2000-10-25
Abstract: A method of creating a tailored blank assembly, the assembly comprising a first blank having an aperture and a second blank having an embossment. The first and second blanks being positioned in a face to face relation and the configuration of the embossment being complementary to and nested within the aperture. The first and second blanks are welded together about the embossment to join the first and second blanks.
Patent CA-2325798-A1 (CA)
Title: A process for producing isoprenoid compounds by microorganisms and a method for screening compounds with antibiotic or weeding activity
Inventor: HASHIMOTO SHINICHI
IPC: C12N15/52
Filed: 1999-04-14
Abstract: The present invention provides a process for producing isoprenoid compounds or proteins encoded by DNA using DNA that contains one or more of the DNA encoding proteins having activity to improve efficiency in the biosynthesis of isoprenoid compounds effective in pharmaceuticals for cardiac diseases, osteoporosis, homeostasis, prevention of cancer, and immunopotentiation, health food and anti-fouling paint products against barnacles; the DNA; the protein; and a method for screening a substance with antibiotic and weeding activities comprising screening a substance inhibiting enzymatic reaction on the non-mevalonate pathway.
Patent CA-2327077-A1 (CA)
Inventor: ARAI KENTARO
IPC: B60K23/08
Filed: 2000-11-29
Abstract: In a power transmission system for a four-wheel drive vehicle, a multiple disk clutch for distributing a proportion of the torque of the front wheels to the rear wheels is provided between a driving shaft which is connected to the front wheels which are main driven wheels and a driven shaft which is connected to the rear wheels which are auxiliary driven wheels. Between the driving shaft and the driven shaft a torque cam mechanism, a hydraulic pump and a bidirectional clutch mechanism are provided, in that order. When the rotational rate of the front wheels exceeds the rotational rate of the rear wheels, the bidirectional clutch mechanism is engaged, a first rotor of the hydraulic pump which is operatively connected to the front wheels and a second rotor which is operatively connected to the rear wheels rotate relative to each other, and a rotational load is generated by a hydraulic circuit. A first cam element and a second cam element of the torque cam mechanism rotate relative to each other as a result of the above-mentioned rotational load so as to generate a thrust force, and this thrust force causes engagement of the multiple disk clutch so as to put the vehicle into a four-wheel drive mode. It is thus possible to decrease the torque transmission capacity of the bidirectional clutch mechanism so reducing its size and cost.
Patent CA-2330972-A1 (CA)
Title: Fully recombinant tissue sealant compositions
Inventor: BISHOP PAUL D
IPC: A61L24/10
Filed: 1999-04-30
Abstract: Tissue sealant compositions containing human recombinant fibrinogen, human recombinant factor XIII and human recombinant thrombin. Also disclosed are preferred formulations and uses therefor.
Patent CA-2331282-A1 (CA)
Inventor: SHIFMAN JERRY
IPC: H04L12/26
Filed: 1999-05-19
Abstract: A composition and a hose (400) made therefrom having improved fuel vapor barrier layer (10) is provided and the compostion comprises a blend of about 20 to 80 weight percent of a first fluorointerpolymer with about 80 to 20 weight percent of a second fluorointerpolymer. The first fluorointerpolymer comprises a copolymer, terpolymer or mixture thereof formed by the copolymerization of two or more monomers selected from the group consisting of hexafluoropropylene, vinylidene fluoride and tetrafluoroethylene. The second fluorointerpolymer comprises a copolymer, terpolymer or mixture thereof formed by the copolymerization of two or more monomers selected from the group consisting of hexafluoropropylene, vinylidene fluoride and tetrafluoroethylene. The first fluorointerpolymer exhibits elastomer characteristics and second fluorointerpolymer exhibits thermoplastic characteristics.
Patent CA-2334575-A1 (CA)
Inventor: ROHNER GOTTFRIED
IPC: A61C13/20
Filed: 2001-02-06
Abstract: An oven particularly suitable for dental materials is provided with a firing plate on which a calibration apparatus can be removably located. The calibration apparatus includes a meltable element whose melting is detectable by a detecting device. The calibration apparatus is additionally provided with a control device. The firing plate includes a device for receiving therein the calibration apparatus including a non-electrically conducting support for supporting two electrically conducting contact posts of the calibration apparatus.
Patent CA-2334684-A1 (CA)
Title: Electro-luminescent device
Inventor: NAGANO KATSUTO
IPC: H05B33/22
Filed: 2000-04-06
Abstract: The invention provides an EL device having a structure in which a first electrode 12 formed according to a predetermined pattern, a first insulator layer 13, an electroluminescence-producing light emitting layer 14, a second insulator layer 15 and a second electrode layer 16 are successively stacked on an electrical insulating substrate 11. At least one of the first insulator layer 13 and the second insulator layer 15 contains as a main component barium titanate and as subordinate components magnesium oxide, manganese oxide, yttrium oxide, at least one oxide selected from barium oxide and calcium oxide and silicon oxide. The ratios of magnesium oxide, manganese oxide, yttrium oxide, barium oxide, calcium oxide and silicon oxide with respect to 100 moles of barium titanate are:      MgO: 0.1 to 3 moles, MnO: 0.05 to 1.0 mole, Y2O3: 1 mole or less, BaO+CaO: 2 to 12 moles, and SiO2: 2 to 12 moles, as calculated on MgO, MnO, Y2O3, BaO, CaO, SiO2 and BaTiO3 bases, respectively.
Patent CA-2335530-A1 (CA)
Inventor: GILGEN ROBERT L
IPC: H04N9/64
Filed: 1999-06-15
Abstract: A video graphics system wherein a large quantity of video data is independently and selectively made available to plural types of video display devices, from plural sources of video data of different formats.  A multi-sourced video distribution hub may be configured with a system card (110), input cards (Input A, Input B, Input C), output cards (Output A, Output B), pixel and control buses. It serves as interface between sources of video display data and video display devices: one source of data may be a base image and other sources of data may be utilized for overlay images integrated into the base image. The hub may be configured as an interface to one or more types of video display devices and/or to another hub. A desired portion of the base image and/or an integrated overlay image(s) is provided for display on the video display device(s) and/or to another hub.
Patent CA-2337131-A1 (CA)
Title: Method and apparatus for effecting gas-liquid contact
Inventor: SMITH JAMES W
IPC: C10C3/04
Filed: 1993-04-05
Abstract: Components, usually but not exclusively gaseous components, are removed in a liquid medium from gas streams and chemically converted into an insoluble phase or physically removed. Specifically, hydrogen sulfide may be removed from gas streams by oxidation in aqueous chelated transition metal solution in a modified agitated flotation cell. The same principle may be employed with other procedures in which a gaseous phase is dispersed in a liquid phase to effect an interaction between components present in such phases, for example, to treat or strip or react a component of the liquid phase. A gas-liquid contact apparatus, which may be a combined chemical reactor and solid product separation device, also is described. In order to effect efficient mass transfer and rapid reaction, gas bubbles containing hydrogen sulfide and oxygen are formed by rotating an impeller at a blade tip velocity of at least about 350 in/sec. to achieve the required shear. To assist in the reaction, a surrounding shroud has a plurality of openings, generally of aspect ratio of approximately 1, of equal diameter and arranged in uniform pattern, such as to provide a gas flow therethrough less than about 0.02 lb/min/opening in the shroud. In general, the gas velocity index of gas through the openings in the shroud is at least about 18 per second per opening, preferably at least about 24 per second per opening. Each of the openings has an area corresponding to an equivalent diameter less than about one inch.
Patent CA-2338961-A1 (CA)
Title: Process for producing supported catalysts and their use for preparing vinyl acetate monomer
Inventor: WERNER HARALD
IPC: B01J23/52
Filed: 1999-07-22
Abstract: The invention relates to a supported catalyst containing palladium and doped with hafnium for the heterogeneously catalyzed gas-phase oxidation of ethylene and acetic acid into vinyl acetate. To this end the porous support, for example on a SiO2 basis, during or after coating with the active metals and promoters is exposed to suitable hafnium compounds, for example by saturation with soluble hafnium compounds. The advantage of this hafnium-doped catalyst system is its improved activity and long-term stability in comparison with undoped catalysts.
Patent CA-2340149-A1 (CA)
Inventor: JONES ELDON D
IPC: B60P1/16
Filed: 2001-03-09
Abstract: A dual acting underbody truck bed hoist is provided with a self-latching mechanism for preventing rebound if a maneuver is attempted by the truck operator to jar hung up dirt from the bed when raised. The hoist further includes an alignment of its various pivots and booster arm so as to maximize the height achieved during initial lifting to the breakaway point with the dump bed.
Patent CA-2340303-A1 (CA)
Inventor: MIKOSHIBA KATSUHIKO
IPC: A61K48/00
Filed: 2001-03-30
Abstract: The present invention provides Synaptotagmin-binding and yet RNA-binding proteins and genes encoding the proteins. The invention relates to a recombinant protein selected from the group consisting of the following (a) and (b), as well as a gene encoding the protein: (a) a protein comprising the amino acid sequence as shown in SEQ ID NO: 2 (b) a protein which comprises the amino acid sequence as shown in SEQ ID NO: 2 having deletion, substitution or addition of one or several amino acids and which has RNA binding activity.
Patent CA-2340417-A1 (CA)
Title: Methods for forming regional tissue adherent barriers and drug delivery systems
Inventor: SAWHNEY AMARPREET S
IPC: A61K47/34
Filed: 1999-08-13
Abstract: Methods are provided for forming hydrogel barriers in situ that adhere to tissue and prevent the formation of post-surgical adhesions or deliver drugs or other therapeutic agents to a body cavity. The hydrogels are cross-linked, resorb or degrade over a period of time, and may be formed by free radical polymerization initiated by a redox system or thermal initiation, or electrophilic-neutrophilic mechanism, wherein two components of an initiating sytem are simultaneously or sequentially poured into a body cavity to obtain widespread dispersal and coating of all or most visceral organs within that cavity prior to gelation and polymerization of the regional barrier. The hydrogel materials are selected to have a low stress at break in tension or torsion, and so as to have a close to equilibrium hydration level when formed.
Patent CA-2341542-A1 (CA)
Title: .alpha.1b-adrenergic receptor antagonists
Inventor: OHMORI EIJI
IPC: A61K31/496
Filed: 2000-06-22
Abstract: Compounds of the general formula (I) or pharmacologically acceptable acid addition salts thereof; and .alpha.1B-adrenergic receptor antagonists comprising the compounds or the salts: [wherein Ar is indole or the like; R1  is hydrogen or the like; B is a bond or B-N-R1 may form a ring structure suc h as piperidine; n is 0, 1 or the like; A is trimethylene, butylene, or the like; and Q is piperidine, isoindoline, or the like]. The compounds and the salts serve as antagonists having a high affinity for .alpha.1B-adrenergic receptor and are useful as drugs to be used in the prevention and/or treatme nt of .alpha.1B-adrenergic receptor-related diseases (such as hypertension) or as pharmacological tools for the elucidation of physiologic actions occurring through .alpha.1B-adrenergic receptor.
Patent CA-2343788-A1 (CA)
Title: Bag for preserving and transporting sterile products in powder form and for forming solutions of said products in the bag
Inventor: DUSCI SERGIO
IPC: A61J3/00
Filed: 1999-04-23
Abstract: A bag containing a sterile product in powder form and having a port closed by a membrane through which a liquid can be fed into the bag to form a sterile solution of the powder, the bag being preferably housed in an intermediate bag which itself can be housed in an outer bag formed from three separate layers of flexible material.
Patent CA-2344210-A1 (CA)
Title: Dynamic control system and method for catalytic combustion process and gas turbine engine utilizing same
Inventor: GREEB KEVIN
IPC: F02C9/28
Filed: 1999-09-16
Abstract: A unique and useful dynamic control system for the control of a catalytic combustion system for use on a dynamic plant, preferably, a gas turbine engine (14). The dynamic control system facilitates the replacement of conventional flame combustion systems with catalytic combustion systems. A method of controlling the catalytic combustion process comprises the steps of calculating a mass flow of air introduced into the combustor, monitoring a flow of fuel to be combusted within the combustor (32), monitoring a temperature of the air introduced into the combustor (32), calculating an inlet temperature set point based on the mass flow and fuel flow, and controlling a preburner (54) to heat the air based on the inlet temperature set point, the mass flow, and the temperature of the air. Further, the mass flow may be estimated based on ambient air temperature and pressure, and compressor (20) speed. A catalytic combustion gas turbine system is also presented, the operation of which is controlled by a dynamic plant controller (34) which generates a fuel flow rate demand signal to control the flow of fuel to be combusted in response to dynamic plant demands.