baber/WOPTO huggingface dataset:
Patent CA-2278416-A1 (CA)
Title: Catadioptric optical system, optical pickup and optical disk drive employing the same, and optical disk
Inventor: LEE YONG-HOON
IPC: G11B7/135
Filed: 1998-11-21
Abstract: An optical focusing system which uses a light beam emitted from a light source, includes a refractive surface on one side of the optical focusing system and having a first radius of curvature, a first reflection surface on the above one side, surrounding the refractive surface and having a second radius of curvature being different from the first radius of curvature, a transparent beam focusing surface on the other side of the optical focusing system, and a second reflection surface on the above other side and surrounding the beam focusing surface. The refractive surface refracts an incident light beam, the second reflection surface reflects a light beam refracted by the refractive surface toward the first reflection surface, and the first reflection surface focuses a laser light beam reflected from the second reflection surface on the beam focusing surface as a focused beam spot.  The optical focusing system can be used in an optical pickup. The optical pickup uses the optical focusing system to generate, from a light beam e.g.  laser light emitted from a light source, a beam spot used for recording or readinginformation to a recording medium. The optical pickup uses a near field effect provided by an optical focusing system according to the present invention, to allow a superior density of recording or reading. Further, the optical focusing system according to the invention can use a light beam having a beam diameter smaller than that of the laser beam used for an existing optical focusing system for forming a near field. Thus, the optical pickup according to the invention can record or read information on an optical disk having a surface recording density of 10Gbit/inch2 or more. Even if an incident light beam inclination occurs due to movement of the disk or the optical pickup, information can be recorded on or read from a disk accurately.  Also, the assembly of the optical focusing system and the adjustment of the assembled optical focusing system are easily performed.
Patent CA-2278774-A1 (CA)
Inventor: RAPOPORT URI
IPC: A61B5/05
Filed: 1998-02-27
Abstract: This invention is a method and apparatus for detecting in a sample a substance (18) which responds to an applied magnetic field, such as a paramagnetic substance. The sample is placed in a magnetic field, and the effect of the sample on a performance characteristic of an electrical conductor is correlated to the presence of the substance. The first conductor (12) is configured as a coil, and electromagnetic signal source (14) is a current source which applies a current to the first conductor (12). The sample (18) in sample holder (16) can have a measurable effect on the performance of the conductor (12). A measuring device (19) measures the value of a pre-selected performance characteristic of the coil (12). The value measured by the measuring device (19) may be displayed by the computer (30).
Patent CA-2278824-A1 (CA)
Inventor: VAN WILTENBURG NICO
IPC: A61K35/76
Filed: 1998-01-29
Abstract: The present invention is concerned with a vaccine which is capable of protecting poultry against Infectious Bursitis Infections, characterized in that it contains an Infectious Bursitis virus which has the combined properties of upon administration to a chicken causing a reduction in the size of the bursal size, expressed as bursa/body weight ratio, of less than 55 %  and the capability to protect poultry having an ELISA antibody titer of at least about 500 and with viruses having the above characteristics.
Patent CA-2280671-A1 (CA)
Inventor: JUD WILFRIED
IPC: B65D77/20
Filed: 1999-08-25
Abstract: Lids (10) of a substrate material (5) having a plastic film, featuring printing (6) on the outside, with respect to a container (1) on which the lid (10) is employed, and an inward facing sealing layer (8,9), for closing the container (1) which has a shoulder region (4). The inward facing side of the substrate material (5) features the sealing layer (8,9) in the form of a printed image, and the printed image corresponds with the shoulder region (4) of the container (1) and is in the form of a series of points (12). The printed image (12) which forms the sealing layer (8,9) and the printed pattern (12) may be deposited in the same printing machine in which the printing (6) on the substrate layer takes place. The printed image (11) enables easy removal of the lids (10) individually from a stack of lids in the packaging machine without having to depend on embossing of the lids.
Patent CA-2283255-A1 (CA)
Title: Use of r-nsaid's for the prevention of alzheimer's disease
Inventor: WECHTER WILLIAM J
IPC: A61K31/35
Filed: 1998-03-04
Abstract: A method of preventing or delaying the onset of symptoms of Alzheimer's Disease includes the step of administering to a patient in need of such treatment a composition having an effective Alzheimer's Disease prophylactic amount of an enantiomerically stable R-NSAID or a pharmaceutically acceptable salt thereof, the composition being substantially free of the S-enantiomer of the selected R-NSAID.
Patent CA-2284901-A1 (CA)
Inventor: VALENTIN LUC
IPC: G01N27/447
Filed: 1999-01-29
Abstract: The invention concerns a multiple capillary electrophoresis system comprising a plurality of juxtaposed capillaries, at least one source for transmitting a beam designed to excite the molecules present on its path and inside the capillaries, means for detecting the fluorescence of the molecules excited by said beam. The invention is characterised in that said means are arranged so as to detect the light emerging at the output of said capillaries and propagated along a direction wherein said capillaries extend and the detection means resolution is sufficient for distinguishing the light emerging at the output of the capillaries from that coming from the walls thereof and/or their surrounding medium.
Patent CA-2285614-A1 (CA)
Title: Stimulateur cardiaque implantable a detection de polarite pour detecter les extrasystoles
Inventor: WOODSON DRURY III
IPC: A61N1/39
Filed: 1998-04-13
Abstract: Dispositif médical implantable (100) permettant de stimuler électriquement les battements du coeur, qui comporte un circuit de détection (208, 218) destiné à détecter l'activité électrique cardiaque. Le circuit de détection comporte un amplificateur (210, 220), un filtre passe-bande (215, 225) et un détecteur de seuil (227, 240, 245). Le détecteur de seuil détermine si l'activité électrique cardiaque détectée résulte d'un battement normal ou d'une extrasystole telle qu'une contraction ventriculaire prématurée. Dans un mode de réalisation préféré, des verrous dans le détecteur de seuil sont activés par des impulsions de sortie provenant d'une paire de comparateurs (240, 245). Un comparateur positif (240) produit une impulsion de sortie en cas de détection d'une activité électrique cardiaque dépassant une tension de seuil positive et un comparateur négatif (245) produit une impulsion de sortie en cas de détection d'une activité cardiaque électrique inférieure à un seuil négatif. Une logique (250) de seuil produit des signaux de sortie indiquant le comparateur qui a été le premier à produire une impulsion de sortie. Une unité logique et de commande surveille les signaux de sortie provenant de la logique de seuil et détermine ainsi si l'activité électrique cardiaque associée représente un battement normal ou une extrasystole, si bien que la stimulation appropriée peut être fournie par le dispositif implantable.
Patent CA-2285684-A1 (CA)
Title: Cosmetic composition based on associative polyurethanes and quaternary silicones
Inventor: DUPUIS CHRISTINE
IPC: A61K8/896
Filed: 1998-12-23
Abstract: A cosmetic composition having, in a cosmetically acceptable medium, at least one nonionic amphiphilic associative polyurethane, and at least one silicone containing quaternary ammonium groups.
Patent CA-2286090-A1 (CA)
Title: Forms of prostate specific antigen and methods for their detection
Inventor: GRAUER LANA S
IPC: C12P21/08
Filed: 1998-04-28
Abstract: Inactive precursor forms of PSA (pPSA) have been identified. At least one of these forms of pPSA exists in human serum. An expression vector is provided to stably express PSA, in the form of pPSA, in a mammalian system. Methods for detecting inactive precursors of PSA in human physiological fluid are provided. Antibodies specific for pPSA are also provided, as well as diagnostic kits and methods useful in the diagnosis and management of prostate cancer.
Patent CA-2286691-A1 (CA)
Title: Endovascular graft for repairing abdominal aortic aneurysms
Inventor: DEFORD JOHN A
IPC: A61F2/848
Filed: 1998-04-09
Abstract: This is regarding a type of device aimed at a simpler, in relation to already existing techniques, endovascular positioning of a stent-graft in the abdominal aorta for the therapy of aneurysms up to the point of its bifurcation. This device is comprised of a system of three cylinders: a "main" centrally placed and two "limbs" peripherally placed. Each of these cylinders has a central and a peripheral orifice. The cylinders are comprised of a cylindrical metallic skeleton which is self-expanding and made out of stainless steel or nitinol and which is externally covered with a cylinder made out of thin-layered PTFE, Dacron or some other elastic biocompatible material, refolded around the peripheral orifice of the skeleton of the main cylinder. These cylinders can be compressed into small diameter tubules and enter the vascular lumen. After their insertion into the desired position, they expand, regaining their original diameter. The main cylinder is placed inside the aorta becoming more circular when it comes in contact with the healthy part of the aorta central to the aneurysm at the center of the orifice. The peripheral orifice of the main cylinder sits upon the expanded aortic bifurcation. The two limbs have a central orifice with a diameter equal to or approximately about 2 mm smaller than the diameter of the peripheral orifice of the main cylinder. The branching of the main cylinder is accomplished by the entrance of the main ends of the two limbs inside the peripheral end of the main cylinder. Both limbs are at the same height in such a manner that they compress each other at the center of the cylinder. Each limb exerts equal pressure, whereas equal pressure is also exerted on the internal surface of the main cylinder from their external surface and together they both occupy at the height of their orifices the entire perimeter of the main cylinder. Alternatively, as limbs (peripheral cylinders), tubes of different diameters and types of skeletons can be used.
Patent CA-2286840-A1 (CA)
Title: Calling line identification with location icon
Inventor: BEATON BRIAN FINLAY
IPC: H04M1/57
Filed: 1998-04-21
Abstract: A method of presenting information to a user of a communication device for a telephone network comprising the steps of: storing in a memory a directory of entries each including a telephone number and an associated icon, receiving a call from a caller over the telephone network, displaying the caller's telephone number and the associated icon.
Patent CA-2287978-A1 (CA)
Inventor: MAUBRU MIREILLE
IPC: A61K8/72
Filed: 1999-03-11
Abstract: The invention concerns an oxidation dyeing composition for dyeing keratinous fibres, and in particular human keratinous fibres such as hair, comprising in a suitably dyeing medium, at least a heterocyclic oxidation base, and at least a 3-aminopyridine derivative as direct colouring agent, as well as the dyeing method using said composition.
Patent CA-2288102-A1 (CA)
Title: Endstop and docking means for thermoplastic bags
Inventor: TONEY KENNETH A
IPC: A44B19/16
Filed: 1998-04-24
Abstract: In a thermoplastic bag having a reclosable fastener (11) extending along the mouth of the bag and a slider (10) straddling the fastener for opening and closing the fastener, the fastener including two opposing interlocking fastener strips (14, 15) along the side walls (12, 13) of the bag, the slider adapted to maintain straddling relation with the fastener, an improved endstop means (30) proximate to at least one end of the reclosable fastener, the endstop means being formed from the material of the fastener strips and rising vertically from the fastener to a height adequate to engage the slider and prevent movement of the slider past the end of the bag. A rail (25) extends along the length of at least one of the fastener strips on the outside thereof, the rail extending to a point sufficient to permit the slider to cooperate with the rail to maintain straddling relation with the fastener when the slider reaches the endstop. Docking means (40) and methods of making endstop means and docking means are also disclosed.
Patent CA-2290086-A1 (CA)
Title: Method for loading a java application program
Inventor: HOLIDAY MATTHEW R JR
IPC: G06F9/445
Filed: 1999-11-19
Abstract: A method for loading software into a Java virtual machine ("JVM") in a manner suited for real-time server applications. The software to be loaded is organized by Java package and class so that an application may be loaded in units of packages. Each package, and each class within a package, is loaded into the JVM in an order such that no package or class is loaded before the packages or classes upon which it depends. All software for an application is loaded into the JVM, and any compilation, optimization, or initialization takes place, prior to execution of the application program, so that no delays are incurred during such execution. Software loaded into the JVM, as well as attributes of that software, are identified. Versions of packages are compared when loading the packages to ensure compatibility. An "image" of loaded software is created, which image may be reused by the JVM in order to restart an application rapidly following a failure. A loader environment within the JVM contains information about all loaded applications, packages, and classes, their attributes, and their interrelationships.
Patent CA-2291568-A1 (CA)
Title: Flip-chip package with optimized encapsulant adhesion and method
Inventor: KODNANI RAMESH R
IPC: H01L21/60
Filed: 1999-12-02
Abstract: An electronic module having enhanced adhesion at the chip passivation and underfill interface is disclosed. The surface of the chip passivation is chemically modified to a sufficient depth such that the cured passivation is more reactive. The modified surface is treated with a polyamine preferably having a cyclic amine group extending from a preferably aliphatic backbone. During reflow of the solder joints of the electronic module by heating, the modified passivation reacts with the polyamine at the amine functionality. Following underfill of the electronic module with a polymeric material, preferably an epoxy resin, the polyamine on the surface of the passivation reacts with the underfill material during curing of the underfill material. The resulting electronic module is more robust since the amine acts as a chemical anchoring site for both the modified passivation and the underfill material. A method of assembling an electronic module utilizing the polyamine treatment at the chip and wafer level is also disclosed.
Patent CA-2295168-A1 (CA)
Inventor: GUEST MARTIN J
IPC: C08K3/00
Filed: 1998-06-22
Abstract: L'invention concerne une composition polymère à matériau de remplissage comprenant (A) de 5 à 90 % d'un ou plusieurs copolymères thermoplastiques sensiblement aléatoires obtenus par polymérisation d'une ou plusieurs alpha-oléfines avec un ou plusieurs monomères vinylidène aromatiques et/ou un ou plusieurs monomères vinylidène encombrés aliphatiques ou cycloaliphatiques, et éventuellement un ou plusieurs autres monomères polymérisables insaturés en éthylène, et (B) de 10 à 95 % d'un ou plusieurs matériaux de remplissage inorganiques, les quantités de (A) et (B) dépendant du poids total de (A) et (B). L'invention concerne aussi des articles à base de ce type de composition, qui sont utiles comme films ou feuilles d'isolation phonique ou d'amortissement ou encore comme revêtements de plancher, de mur ou de plafond.
Patent CA-2296346-A1 (CA)
Inventor: GRUBER JOHN M
IPC: C07C249/02
Filed: 1998-07-08
Abstract: This invention provides a process for preparing aminoarylacetylenes comprising reacting an N-arylmethylidene aminoarylhalide with a terminal acetylene in the presence of a base and a catalyst system comprising a palladium catalyst and a cuprous salt to produce a novel N-arylmethylidene aminoarylacetylene, and hydrolyzing the N-arylmethylidene aminoarylacetylene to the aminoarylacetylene. In one embodiment, the invention provides a process for preparing aminophenylacetylenes comprising reacting an N-benzylidene aminophenylhalide with a terminal acetylene in the presence of a base and the catalyst system to produce a novel N-benzylidene aminophenylacetylene, and hydrolyzing the N-benzylidene aminophenylacetylene to the aminophenylacetylene.
Patent CA-2297949-A1 (CA)
Title: Piston coffee maker for preparing coffee in small amounts
Inventor: JORGENSEN CARSTEN
IPC: A47J31/38
Filed: 1998-08-07
Abstract: With a piston coffee maker (1) with a cylindrical container (2), a lid (3), a piston (5) with piston rod (7) and a handle (8), where the piston (5) is made as a filter (6) for the ground coffee, it is the intention to make a piston coffee maker of the above mentioned kind, where with the piston coffee maker small portions for a single cup can be made, and where the piston coffee maker is capable of keeping the temperature of the infusion fluid on a suitable level during the preparation of the coffee, and where production costs for the piston coffee maker are small. This goal is achieved with a piston coffee maker according to the invention in, that the walls, the lid and the bottom in the cylindrical container (2) are made heat isolating and the upper rim is equipped with locking means (9), and that the lid (3) is provided with corresponding locking means with a view to that the lid (3) can be sealingly locked on the piston coffee maker (1).
Patent CA-2300854-A1 (CA)
Title: Novel mutants of gram negative mucosal bacteria and application thereof in vaccines
Inventor: VAN DER LEY PETER ANDRE
IPC: A61K39/10
Filed: 1997-08-21
Abstract: It is possible to inactivate the early stage of lipid A synthesis of mucosal gram negative bacteria without compromising cell viability. In particular the lpxA gene in N. meningitidis was mutated and resulting lpxA knockout mutants were found to be completely lipopolysaccharide(LPS)-deficient. The major outer membrane proteins (OMPs) were detected in normal amounts. The finding provides important implications for understanding of structure and biogenesis of the outer membrane. On a practical level, the availability of LPS-deficient mutants of pathogenic mucosal bacteria such as N. meningitidis opens up new avenues to vaccine development. It enables easy isolation of endotoxin-free purified proteins, outer membranes or even whole-cell preparations for use in immunisation.
Patent CA-2301168-A1 (CA)
Inventor: BETTIOL JEAN-LUC PHILIPPE
IPC: C12N9/50
Filed: 1998-06-10
Abstract: La présente invention concerne des compositions détergentes et/ou d'entretien des textiles comprenant une mannanase et un agent tensio-actif conférant un pouvoir adoucissant et nettoyant accru.
Patent CA-2302549-A1 (CA)
Title: Telephonic system with call forwarding apparatus and method
Inventor: WU WOODY D
IPC: H04M3/436
Filed: 1998-09-04
Abstract: An adaptive call forwarding system for a telephonic system providing for selectively inhibiting call forwarding of calls sent from a calling telephonic station and received at a called telephonic station to a selected remote telephonic station. Automatic identification of the number of a calling telephonic station is provided with automatic inhibiting of call forwarding for an identified calling station. A preselected enable signal, if not inhibited from the calling telephonic station during a preselected time period results in the call being forwarded to the selected remote telephonic station.
Patent CA-2302679-A1 (CA)
Title: Metadata-based network routing
Inventor: GALVIN BRIAN
IPC: H04Q3/66
Filed: 1998-09-09
Abstract: A customer-maintained routing system for providing routing to a network provider (241) for incoming calls (107) from clients to the customer comprises a processor (103) having a data link adapted for connection to a customer access point (310) provided by the network provider, a router adapted to execute on the processor (214) and to provide routing to the network via the customer access point, and a metadata-based information system (310) maintained in RAM accessible to the processor and containing a condensed client characteristics (300). Upon receiving a request from the network including a call identifier, the router accesses the database using the identifier as a key, retreives client characteristics from the information system and provides a destination for the call to the network based on the retrieved client characteristics.
Patent CA-2305148-A1 (CA)
Title: Composite spoolable tube with sensor
Inventor: QUIGLEY PETER A
IPC: E21B47/01
Filed: 1998-10-09
Abstract: A spoolable composite member having a sensor and an energy conductor embedded in the composite member. The spoolable composite member is capable of being spooled onto a reel for storage and for use in oil field applications. The spoolable tube exhibits unique anisotropic characteristics that provide improved burst and collapse pressures, increased tensile strength, compression strength, and load carrying capacity, while still remaining sufficiently bendable to be spooled onto a reel in an open bore configuration. The spoolable composite tube can include an inner protective layer, an inner pressure barrier layer, an interface layer, fiber composite layers, an outer pressure barrier layer, and an outer protective layer.
Patent CA-2305167-A1 (CA)
Title: Method of routing calls to portable numbers in a radio telecommunications network
Inventor: BRITT MARGARET
IPC: H04Q3/00
Filed: 1998-10-02
Abstract: A method of routing a call directed to a portable directory number in a radio telecommunications network having an originating mobile switching center (O-MSC), a home location register (HLR), and a Number Portability Database (NPDB). The O-MSC determines whether to send a Location Request (LOCREQ) message to the HLR for a routing number, or to send a Number Portability Request (NPREQ) message to the NPDB for a location routing number (LRN).  The determination may be based on operator preference, a default preference, or statistics indicating that either the HLR or the NPDB is more likely to return a routing number. The O-MSC then attempts to obtain a routing number from the determined destination. If an error message is returned, the O-MSC attempts to obtain a routing number from the alternate destination. Upon receipt of a routing number, the O-MSC routes the call. In an alternative embodiment, the O-MSC may send the LOCREQ message and the NPREQ message simultaneously, and utilize the first routing number received to route the call.