baber/WOPTO huggingface dataset:
Patent CA-2029951-C (CA)
Title: Magneto-optic recording medium and apparatus
Inventor: NAKAKI YOSHIYUKI
IPC: G11B11/10
Filed: 1990-11-14
Granted: 1995-10-31
Abstract: A magneto-optic recording medium comprises: a 1st layer having a Curie temp. Tc1, having a perpendicular magnetic anisotropy, a 2nd layer, being a transition metal sublattice dominant film, having a Curie temp. Tc2, provided on the 1st layer and exchange coupled with the 1st layer, a 3rd layer having a Curie temp. Tc3, provided on the 2nd layer and exchange coupled with the 2nd layer, and a 4th layer having a Curie temp. Tc4, provided on the 3rd layer and exchange coupled with the 3rd layer, wherein Tc2 > Tc1, Tc4 > Tc1, Tc2 > Tc3, and Tc4 > Tc3.  The magnetization of the 1st layer is not reversed due to the magnetization of the 2nd layer at room temp.; the directions of the sublattice magnetization of the 2nd layer, the 3rd layer and the 4th layer are parallel with each other at room temp. after recording operation; and there is a temp. between room temp. and the lower one of the Curie temp. of the 1st layer and Tc3 at which the relationship: Hc2 < Hw2 is satisfied.          Here, Hc2 and Hw2 respectively represent the coercivity of the 2nd layer, and the exchange coupling which the 2nd layer receives from the 1st and 3rd layers.  Hc2 and Hw2 are values obtained when the four layers are stacked with each other and the sublattice magnetizations of the 1st and 3rd layers are antiparallel with each other.
Patent CA-2030196-C (CA)
Title: Biological duct liner and installation catheter
Inventor: STILES FRANK B
IPC: A61F2/92
Filed: 1990-11-16
Granted: 1997-07-22
Abstract: An apparatus for correcting narrowing of a fluid vessel of the body comprising a catheter, for insertion into the blood vessel at a location remote from a region of narrowing, and a fluid vessel liner. The liner is comprised of a radially resiliently compressible tube having an elongated split along one side thereof.  The edges of the sides of the liner on each side of the split overlap each other.  The liner is contained within the catheter adjacent a tip of the catheter in a compressed condition.  The catheter is constructed for expulsion of the liner from the catheter forward of the catheter at the region of narrowing, thereby facilitating expansion of the tube to a natural expanded condition so as to support the blood vessel from the interior to the diameter of the tube in its naturally expanded diameter.
Patent CA-2031656-C (CA)
Title: Alkoxylated alkyl glucoside ether quaternaries useful in personal care
Inventor: PAVLICHKO JOSEPH P
IPC: A61Q5/00
Filed: 1990-12-06
Granted: 1997-10-28
Abstract: Alkoxylated alkyl glucosides having quaternary nitrogen-containing ether substituents possess cationics utility combined with extreme mildness to skin and hair along with stable personal care compositions and processes.
Patent CA-2035681-C (CA)
Title: Detergent composition
Inventor: RYS KARLA JEAN
IPC: A61K8/46
Filed: 1991-02-05
Granted: 1998-12-08
Abstract: A skin cleansing composition is provided that includes a combination of acyl isethionate ester salts with at least one sulfosuccinate.  The weight ratio of acyl isethionate to sulfosuccinate will be about 10:1 to about 2:1.
Patent CA-2044436-C (CA)
Title: Mobile communications
Inventor: MAUGER ROY HAROLD
IPC: H04W88/16
Filed: 1991-06-12
Granted: 2001-05-15
Abstract: A flexible and equitable PCN/PSTN interconnection strategy between a communications network having mobile subscribers, such as a PCN network, and a PSTN whereby to form a communication system in which multiple tariffs can be applied, the tariff applied being determined by the actual location of the mobile subscriber involved in a call. The PSTN (2, 6, 9, 10) is not given total access to the PCN (1, 5, 8, 11) location registers, rather a PSTN to PCN call is via a PCN gateway (5) which does have access to the location registers. The gateway (5) accepts zonal calls with which are associated one tariff (zonal interconnect 4) but for, for example, local or interzonal calls, it provides drop back messages to the PSTN to arrange for appropriate rerouting to other gateways (1, 8) of the PCN which have different tariffs associated therewith (local interconnect 3, interzonal interconnect 7) (Fig 2).
Patent CA-2044543-C (CA)
Inventor: BIGELOW LOUIS KIMBALL
IPC: C23C16/27
Filed: 1991-06-13
Granted: 1999-12-14
Abstract: ABSTRACT            A multi-layer diamond film is grown by d.c. arc assisted plasma deposition.  A series of layers are deposited on each other  by  periodically  back-etching  the  surface  and renucleating during deposition.  There may also be deposited a thin  layer of non-diamond carbon material between the diamond   layers,   but   no   other   non-carbon   material. Renucleation  is  controlled by varying the proportion of methane to hydrogen in the feed gases, by temperature cycling of the substrate, or by inducing modal changes in the arc.
Patent CA-2048104-C (CA)
Inventor: WATANABE HIROKAZU
IPC: A44B1/08
Filed: 1991-07-30
Granted: 1996-04-23
Abstract: A tack button is disclosed which comprises a button body having a cylindrical hub, a tack member and an anchoring member interconnecting the button body and the tack member.  The cylindrical hub is resiliently supported to make a tilting movement relative to the plane of a garment fabric at both of its upper and lower marginal edges.
Patent CA-2049387-C (CA)
Title: Process for producing foamed polymers
Inventor: FARKAS PAUL V
IPC: C08J9/12
Filed: 1991-08-16
Granted: 1996-06-04
Abstract: A process for producing a foamed polymer, particularly a polyurea foam, comprises reacting an isocyanate compound and at least one active hydrogen-containing compound in the presence of a heterogeneous blowing agent. The heterogeneous blowing agent is a permanent gas and is used at a temperature and a pressure thereby rendering it in the form of a liquid, solid or deep chilled gas. The exothermicity of the reaction is substantially compensated by the energy absorbing capacity of the heterogeneous blowing agent.
Patent CA-2050731-C (CA)
Title: Superconducting device having a reduced thickness of oxide superconducting layer and method for manufacturing the same
Inventor: NAKAMURA TAKAO
IPC: H01L39/14
Filed: 1991-09-05
Granted: 1997-03-18
Abstract: A superconducting device comprises a substrate having a projection formed in a principal surface and an oxide superconductor thin film formed to cover the projection formed in the principal surface and having a substantially planar surface. The oxide superconductor thin film includes a thinned portion positioned on the projection, a first thick portion positioned at one side of the projection, and a second thick portion positioned at the other side of the projection, so that a superconducting current can flow between the first thick portion and the second thick portion through the thinned portion of the oxide superconductor thin film.     For formation of the superconducting device, a substrate having a projection formed on a principal surface thereof is prepared, and an oxide superconductor thin film is formed on the principal surface of the substrate including the projection so that the oxide superconductor thin film has a thickness larger than a height of the projection. Thereafter, a whole of an upper surface of the oxide superconductor thin film is and etched back and planarized so that the oxide superconductor thin film has a planar upper surface and therefore a thickness of the oxide superconductor thin film on the projection is thinner than that of the oxide superconductor thin film on the substrate without the projection.
Patent CA-2052734-C (CA)
Title: Ringfield lithography
Inventor: JEWELL TANYA E
IPC: G02B17/00
Filed: 1991-10-03
Granted: 1998-09-29
Abstract: Ringfield projection apparatus using x-ray radiation e.g. of 1.30 .ANG. wavelength is suitable for lithographic patterning in the fabrication of integrated circuits at design rules of 0.25 µm and below. The design permits reduction from an enlarged mask as well as substantial throughput, the latter due to unexpectedly large slit width,Incorporation of a folding mirror improves fabrication expediency by moving the device being fabricated to the other side of the system from the mask.
Patent CA-2069541-C (CA)
Title: Induction of an antigen-specific t-lymphocyte response
Inventor: MELIEF CORNELIS J M
IPC: G01N33/68
Filed: 1992-05-26
Granted: 2005-02-01
Abstract: Induction of an antigen-specific T-lymphocyte response in a T-lymphocyte culture, e.g. a primary cytotoxic T-lymphocyte(CTL) response, by loading antigen-presenting vehicles which carry empty MHC molecules with an antigen-derived T-cell-immunogenic MHC-binding peptide, culturing T-lymphocytes in the presence of the peptide-loaded antigen-presenting vehicles under specific T-lymphocyte response-inducing conditions. Optionally, an antigen-specific T-lymphocyte is isolated from the resulting culture and cultured. The process can be used for preparing CTL which are specific for viral or other foreign antigens, or CTL which are specific for autologous peptides. The process can also be used for the identification of peptides that are capable of binding to MHC and inducing a T cell response.
Patent CA-2070648-C (CA)
Title: Systeme de detection d'explosifs
Inventor: CORRIGAN COLIN D
IPC: G01N/
Filed: 1990-12-10
Granted: 2000-05-16
Abstract: Système de détection d'explosifs (10) utilisé pour la détection d'explosifs et d'autres substances contrôlées telles que les drogues et narcotiques. Ce système de dépistage détecte les émissions de vapeur et/ou de particules des substances susmentionnées et enregistre leur présence sur une personne ou un objet et la concentration de chaque substance détectée. Ledit système de détection comporte une chambre à échantillons (20) destinée au recueil des émissions de vapeur et/ou de particules, un système de concentration et d'analyse (45) permettant de purifier les émissions de vapeur et/ou de particules recueillies et d'effectuer l'analyse chimique détaillée ultérieure des émissions, et un système de commande et de traitement des données (50) pour la commande de l'ensemble du système.
Patent CA-2073056-C (CA)
Title: Rotary fluid engine
Inventor: DYE ANTHONY O
IPC: F02B53/00
Filed: 1990-11-05
Granted: 2001-08-28
Abstract: The invention relates to an internal combustion engine having separate rotary compression and expansion sections and a combustion chamber (16) having valved inlet and outlet ports (21, 22) communicating with the compression and ex-pansion chambers respectively. Each section is a rotary de-vice comprising a first rotor (14b) rotatable about a first axis (11) and having at its periphery a recess (R) bounded by a curved surface; and a second rotor (14a) counter-rotatable to the first rotor (14b) about a second axis (10), parallel to the first axis (11), arid having a radial late (P) bounded by a curved surface, the rotors intermeshing whereby, on rotation thereof, a transient chamber of progressively increasing (ex-pansion section) or decreasing (compression section) volume is defined between them. The rotors (14a, 14b) are rotatable at a relative speed ratio, preferably 2:3, and are contoured such that during passage of the lobe (P) through the recess (R), the recess surface is continuously swept, by both a tip (17) of the lobe (P) and a movable location (18) on the lobe (P) which progresses along the lobe surface, to define the transient chamber.
Patent CA-2074426-C (CA)
Title: Thermally responsive indicator with organic retaining means
Inventor: OU-YANG DAVID T
IPC: G01K11/06
Filed: 1992-07-22
Granted: 2000-06-13
Abstract: An indicator is disclosed for providing an indication that a food item has attained a predetermined temperature.
Patent CA-2075912-C (CA)
Title: Self adhesive nail coatings
Inventor: PARK HWA YOUNG
IPC: A45D29/18
Filed: 1990-02-23
Granted: 2000-05-09
Abstract: A nail polish-coating material is provided in semi-solid form on a sheet of adhesive-backed peel-off paper (4) which, when removed, exposes the adhesive (8) of the fingernail coatings (13'). The semi-solid nail enamel product (13) is originally sealed in an air tight envelope to ensure that the coatings do not fully dry out during shipping and storage. Upon removal of the fingernail coatings and securing them on the individual's fingernails, the semi-solid polish will completely dry and"cure" and, a slight aroma of liquid nail polish is emitted.
Patent CA-2079788-C (CA)
Title: Hair grooming device
Inventor: KANTOR ISAAK
IPC: A45D24/30
Filed: 1991-03-27
Granted: 2001-12-11
Abstract: A hand-held hair grooming device comprising a housing adapted to be held in the hand of the user, an array of electrically conductive tines extending outwardly from the housing, apparatus for mounting the tines in the housing, and apparatus for applying an electric potential between adjacent tines whereby lice or other pests suitably disposed between adjacent tines are electrocuted.
Patent CA-2081806-C (CA)
Title: Apparatus for drilling a curved subterranean borehole
Inventor: WARREN TOMMY MELVIN
IPC: E21B7/08
Filed: 1992-10-30
Granted: 2005-05-10
Abstract: A curve drilling assembly operable with a rotary drill string is provided for drilling a curved subterranean borehole. The assembly includes a curve guide, a rotary drill bit, an imbalance force assembly, and a bearing assembly. The curve guide is connectable with the drill string for deflecting the drill string toward the outside radius of the curved borehole. The imbalance force assembly, which preferably is provided by selectably disposing cutting elements on the drill bit, is rotatable with the drill string for creating a net imbalance force along a net imbalance force vector substantially perpendicular to the longitudinal axis of the drill bit during drilling. The bearing assembly is rotatable with the drill string and is located in the curve drilling assembly near the cutting elements of the drill bit for intersecting a force plane formed by the longitudinal bit axis and the net imbalance force vector and for substantially continuously contacting the borehole wall during drilling.      Preferably, the boring assembly include. a substantially smooth wear-resistant sliding surface. The curve guide includes a mandrel rotatably disposed within a housing. It contact ring may be provided at either the uphole or the downhole end of the mandrel for contacting the borehole wall and supporting the radial force component created by the deflection of the drill string at the end of the mandrel. A flexible joint may be connected to the end of the mandrel adjacent the contact ring for drilling curved boreholes having a short radius of curvature.
Patent CA-2083871-C (CA)
Title: Electromagnetic radiation monitor
Inventor: ASLAN EDWARD
IPC: G01R29/08
Filed: 1992-11-26
Granted: 1998-07-28
Abstract: An  electromagnetic  radiation  monitor  includes  an electromagnetic radiation sensor, a conductive shield spaced apart  from the  sensor  and  a  backing  of  graduated  lossy material.  The electromagnetic radiation sensor includes thin film resistive thermocouples.  The backing of graduated lossy material is interposed between the radiation sensor and the conductive shield.  The layer is progressively more conductive through its thickness from the side which faces the sensor to the side which faces the conductive shield.  The invention may be provided in a form of a personal electromagnetic radiation monitor or an area (fixed position) electromagnetic radiation monitor.
Patent CA-2085160-C (CA)
Title: Method and detector for detecting surface roughness or defects on coated wire or cable
Inventor: ROBINETTE JEAN
IPC: B65H63/06
Filed: 1992-12-11
Granted: 1999-07-27
Abstract: A method and detector are provided for accurately and continuously detecting  surface  roughness  or  oversize defects on coated wire or cable, such as magnet wire. This is achieved by passing the wire or cable through a die having an opening which is generally equal to a desired cross-section of the wire or cable. This die is pulled on the wire or cable when engaged by the oversize defect to a spot or position where a sensor is provided to sense the presence of the die and thus of the defect and then produce a suitable alarm.
Patent CA-2086568-C (CA)
Inventor: LEMAIRE ETIENNE
IPC: D04H3/115
Filed: 1992-12-31
Granted: 2000-09-26
Abstract: - Procédé pour le piquage, au moyen d'un fil en fibre technique (carbone, verre, aramide, etc...), d'une pièce fibreuse (1) destinée à la réalisation d'une pièce composite fibres-matrice. - Selon l'invention : . le fil d'aiguille (4) est constitué par un fil souple résistant à la traction ; . le fil de navette (5) est constitué par ledit fil en fibre technique ; . la tension du fil de navette (5) et la tension du fil d'aiguille (4) sont réglées à des niveaux suffisamment faible et suffisamment élevé, respectivement, pour que, à la fin d'un point de piqûre (7), ledit fil de navette (5) fasse saillie (en 9A) à l'extérieur de ladite pièce fibreuse (1), du côté de la face (2) de celle-ci, et ledit fil d'aiguille (4) se trouve complètement à l'extérieur de ladite pièce fibreuse (1), également du côté de ladite face (2).
Patent CA-2088630-C (CA)
Title: Brushhead magazine for toothbrushes
Inventor: JEANNET ROLAND
IPC: A46B15/00
Filed: 1993-02-02
Granted: 2004-02-24
Abstract: Brushhead magazine for receiving a number of brushheads (22), comprising a plurality of containers, which lie parallel alongside one another in mutual separation, in each case fully enclose a brushhead (22) and the height of which is dimensioned to correspond approximately to the width of a brush base (26) of each brushhead (22), a coupling end of the brushheads (22) in each case facing towards the container opening (30). A wall exhibits, in the area of each container opening (30), a closing flap (32) made from dimensionally stable material, which closing flap is defined by a target rupture line (36) and a hinge (40), formed by an attenuation line (38). The closing flap (32), as its target rupture line (36) is destroyed, can be pivoted by means of the coupling end of a brush handle about the hinge (40) into an open position in the interior of the assigned container. In each container there is disposed a locking device, by means of which the closing flap (32) can be locked in its open position. The magazine offers an aesthetically appealing appearance, even once the closing flaps (32) are opened, and is economical to produce and convenient to handle.
Patent CA-2092297-C (CA)
Inventor: HALE MICHAEL ANTHONY
IPC: H04B10/08
Filed: 1991-10-17
Granted: 1997-12-23
Abstract: A head-end station (1) for a passive optical network system arranged to transmit and receive TDMA frames comprising a header portion and a plurality of basic frames, each basic frame comprising traffic bits and control bits. The head-end station (1) includes a data transmitter which assembles and transmits downstream frames and also generates a diagnostic signal for transmission in a downstream frame, the station being switchable to a diagnostic mode in which it transmits the diagnostic signal in a downstream frame in the absence of other traffic, and also including a data receiver which receives upstream frames and detects a return of the diagnostic signal. In a preferred example, the head-end station (1) may transmit a diagnostic signal in the header portion (H) of each downstream frame. Also, in a test mode the transmit signal is looped back to the receiver to enable testing of the transmit/receive function. Loop back is provided at three levels, namely the transmitter drive level, the monitored output level and at the laser output/receiver input level.
Patent CA-2099659-C (CA)
Title: Fluid assisted devolatilization
Inventor: SKILBECK JOHN P
IPC: C08F6/00
Filed: 1993-06-25
Granted: 2003-01-28
Abstract: A polymer melt may be devolatilized to less than 500, preferably less than 1.50 ppm of residual volatile material by injecting into the melt an amount of fluid which will condense but not freeze at pressures of less than about 20 yarn Hg, in an amount greater than the amount of residual volatile material in the polymer melt, typically not more than about 10 weight % and passing the melt through a zone of pressure of 8 mm of Hg or less at a temperature of from 200 to 350°C.
Patent CA-2100489-C (CA)
Inventor: SCHULZ REINHARD
IPC: B25D17/08
Filed: 1993-07-14
Granted: 1999-06-29
Abstract: The clamping shank 1 of a chisel-cutting and/or percussion boring tool bits comprises stop faces effective in axial direction and in circumferential direction.  Entrainment faces 2, open towards the free end of the clamping shank 1 are located upstream of these stop faces in direction of the cutting area.  The radial dimension r of the essentially radially extending entrainment faces 2 is greater than their axial dimensions a.  In cooperation with an appropriately designed tool bit receptacle, the entrainment faces 2 can carry such a large share of the torque, that the stop faces are effectively relieved or unloaded.
Patent CA-2100695-C (CA)
Inventor: JANG SUN-SING
IPC: F24C15/20
Filed: 1993-07-16
Granted: 1996-07-23
Abstract: An external body of a kitchen fume exhauster includes a top sheet member having left and right edges bending downwardly to or a first vertical portion respectively, and two side sheet members respectively attached to the left and right sides of the top sheet member and individually having a main sheet portion, a top portion and a second vertical portion extending downwardly from the edge of the top portion for secured on the first vertical portion.
Patent CA-2101457-C (CA)
Title: Lanthanum, cerium and terbium mixed phosphates base green phosphors, pr ecursors thereof and process for synthesis
Inventor: BRACONNIER JEAN-JACQUES
IPC: C09K11/81
Filed: 1993-07-28
Granted: 2000-09-12
Abstract: New mixed lanthanum cerium terbium phosphates (LaCeTb phosphates) with improved particle size characteristics, which are more particularly characterised by the fact that they have a mean particle size of between 1 and 15 microns, preferably between 2 and 6 microns, this being with a dispersion index lower than 0.5, preferably lower than 0.4. The invention also relates to the resulting phosphors, which have the same particle sizes and, furthermore, an improved brightness. The phosphates are obtained by precipitation, at a pH which is constant and lower than 2, from a solution containing soluble rare-earth salts. The corresponding phosphors are obtained by calcining these phosphates with or without flux, under or without a reducing atmosphere, as appropriate.
Patent CA-2103371-C (CA)
Title: Targeted delivery of genes encoding secretory proteins
Inventor: WU GEORGE Y
IPC: C12N15/87
Filed: 1992-06-05
Granted: 2003-09-16
Abstract: Molecular complexes for targeting a gene encoding a secretory protein to a specific cell en vivo and obtaining secretion of the protein by the targeted cell are disclosed. An expressible gene encoding a desired secretory protein is complexed to a conju-gate of a cell-specific binding agent and a gene-binding agent. The cell-specific binding agent is specific for a cellular surface structure which mediates internalization of ligands by endocytosis. An example is the asialoglycoprotein receptor of hepatacytes.   The gene-binding agent is a compound such as a polycation which stably complexes the gene under extracellular conditions and releases the gene under intracellular conditions so that it can function within a cell. The molecular complex is stable and soluble in physiological fluids and can be used in gene therapy to selectively transfect cells in vivo to provide for production and secre-tion of a desired secretory protein.