baber/WOPTO huggingface dataset:
Patent TW-343379-B (TW)
Title: Process for forming a self align contact with silicon nitride sidewalls (addition one)
Inventor: JUANG IUAN-CHYI
IPC: H01L21/768
Filed: 1997-09-25
Granted: 1998-10-21
Abstract: A process for forming a self align contact used in an integrated circuit, the process at least comprising: forming a gate oxide layer on a semiconductor substrate; forming a polysilicon layer on the gate oxide layer; forming a first silicon nitride layer on the polysilicon layer and the semiconductor substrate, the first silicon nitride layer being used to produce a cap layer on the polysilicon layer; using a photolithography and etching process to etch the first silicon nitride layer, the polysilicon layer and the gate oxide, thereby forming a gate structure with the cap layer; forming a first silicon dioxide layer on the gate structure and the cap layer; forming a first side wall spacer on the side wall of the gate structure; forming a dielectric layer covering the gate structure, the side wall spacer and the substrate as an insulation layer; and using an etching mask to etch the dielectric layer thereby forming the contact.
Patent CA-1282576-C (CA)
Title: Stabilized and desensitized flowable red phosphorus
Inventor: STAENDEKE HORST
IPC: C01B25/023
Filed: 1985-09-05
Granted: 1991-04-09
Abstract: STABILIZED AND DESENSITIZED FLOWABLE RED PHOSPHORUS               ABSTRACT OF THE DISCLOSURE    Stabilized and desensitized pulverulent flowable red phosphorus consisting of particles with a size of at most 2 mm, and process for making it. To this end, red phosphorus is prepared from yellow phosphorus. Next, an aqueous suspen-sion of pulverulent red phosphorus is freed from residual fractions of yellow phosphorus by treating it with a sodium hydroxide solution, and the red phosphorus in the aqueous suspension is stabilized with aluminum hydroxide and a hardened epoxide resin and desensitized in the aqueous suspension by means of a water-emulsifiable organic com-pound which is liquid, inactive with respect to phosphorus and has a low vapor pressure at room temperature and at atmospheric pressure.
Patent CA-1266668-C (CA)
Title: 7-oxabicycloheptane substituted oxa prostaglandin analogs
Inventor: HALL STEVEN E
IPC: C07D493/08
Filed: 1985-11-04
Granted: 1990-03-13
Abstract: HA342 ABSTRACT 7-OXABICYCLOHEPTANE SUBSTITUTED OXA PROSTAGLANDIN ANALOGS 7-Oxabicycloheptane substituted oxo prostaglandin analogs are provided having the structural formula wherein R1 is lower alkyl, aryl, aralkyl, cycloalkyl or cycloalkylalkyl, A is -CH=CH- or -(CH2)2-, n is 1 to 4, m is 1 to 8, and 2 is wherein R3 is lower alkyl, aryl or arylalkyl; or wherein R4 is H or lower alkyl and including all stereoisomers thereof.
Patent CA-1276171-C (CA)
Title: Amino acid esters
Inventor: HENRICK CLIVE A
IPC: C07C229/42
Filed: 1985-11-04
Granted: 1990-11-13
Abstract: AMINO ACID ESTERS          Abstract of the Disclosure The invention provides novel compounds of formula (A)                 (A) wherein R1 is hydrogen, methyl, ethynyl or cyano; R2 is lower alkyl, lower haloalkyl, lower alkoxy, lower haloalkoxy or halogen; W  is oxygen or sulfur; X  is hydrogen, chloro or fluoro; Y  is halogen; Z  is H, lower alkyl, lower haloalkyl, lower alkoxy, lower alkyl-carbonyl, lower alkoxycarbonyl, nitro, cyano, halogen, lower alkenyl or lower alkoxyalkyl, their synthesis, the use of such compounds and of pesticidal compositions comprising such compounds for control of pests.
Patent CA-1276575-C (CA)
Inventor: ORTH GERARD
IPC: C12N7/00
Filed: 1985-11-28
Granted: 1990-11-20
Abstract: L'invention concerne des papillomavirus, particulierement des ADN-HPVs obtenus à partir de ces papillomavirus de types respectivement distincts corrélables à des affections ou des potentialités d'affections également distinctes, ou encore des sondes contenant ces ADN-HPVs ou des fragments obtenus à partir de ceux-ci. Elle concerne en outre des nécessaires ou "kits" contenant ces sondes de types distincts, ou des groupes distincts de sondes appartenant au même type, ainsi qu'un procédé de détection et d'identification de papillomavirus dans des échantillons biologiques par hybridation avec lesdites sondes, en vue du diagnostic de la nature de l'affection dont souffre le sujet donneur de l'échantillon biologique, ou des affections auxquelles il risque d'être exposé.
Patent CA-1280284-C (CA)
Inventor: CORCORAN ROBERT W
IPC: B05B15/12
Filed: 1986-04-02
Granted: 1991-02-19
Abstract: A paint spraying shroud has a relatively narrow front opening, an air exhaust opening or openings co-extensive with the front opening and disposed on a rear side of the shroud directly opposite the front opening, and a relatively wide intermediate portion. The air flow through the shroud may be substantially entirely uniformly parallel to the horizontal, so that a more uniformly applied coating of paint is obtained on vertically oriented elongated items which are continuously passed through the shroud.
Patent CA-1277732-C (CA)
Title: Armored power cable with end supports
Inventor: HOFFMAN ERNEST G
IPC: H01B7/20
Filed: 1987-03-18
Granted: 1990-12-11
Abstract: Abstract of the Disclosure An elongated, reinforced power cable for use in adverse environments.    The   cable   is   provided  with  internal structural members to resist crushing and other mechanical forces.   The cable includes at least two power conductor assemblies which extend along the longitudinal axis of the cable.   A protective metallic layer is provided for each conductor  assembly and completely encases  each conductor assembly. The conductor assemblies and protective metallic layers are aligned in a row within the cable, the row having a left end, a right end, a top plane and a bottom plane. A rigid support member is positioned at each end of the row of conductor assemblies.  The support members have a height at least  equal  to  the  height  of  the  protective  layers  to prevent compression of the protective layers and conductor assemblies,   An armored covering is provided which  fully encloses the support members, the protective layers and the conductor assemblies.  The row has portions of the top and bottom planes which are  not  covered by a rigid  support member.  The protective metallic layers may have either a square cross section or a generally square cross section with chamfered edges.
Patent CA-1306389-C (CA)
Inventor: HECK ERNST
IPC: A21C11/02
Filed: 1987-07-20
Granted: 1992-08-18
Abstract: ABSTRACT            A continuous stamping machine The invention relates to a machine for continuously stamping at least one strip of flat or shaped products.    It comprises a shaft (1) rotating at a peripheral speed equal to the rate of advance of the strip (12) and com-prising at least one stamping wheel with at least one heating die (3), a pair of vertically adjacent synchronizing rollers (14,15,16,17) on either side of the rotating shaft, a cutting shaft (18) and an anvil roller (20).
Patent CA-1311769-C (CA)
Title: Preparation of cyclohexanone and cyclohexanol
Inventor: BESMAR USAMAH N
IPC: B01J23/44
Filed: 1987-09-01
Granted: 1992-12-22
Abstract: TITLE Preparation of Cyclohexanone and Cyclohexanol Abstract The reaction mixture obtained by oxidation of cyclohexane using a cobalt catalyst is extracted with water to remove undesirable oxidation products such as diacids, hydroxy acids, and cobalt catalyst.  The resulting mixture is then hydroqenated using a fixed bed hydrogenation catalyst to convert cyclohexyl hydroperoxide to cyclohexanol and cyclohexanone.
Patent CA-1288863-C (CA)
Title: Wideband adaptive array using the chirp transform
Inventor: MILLER THOMAS W
IPC: G01S13/53
Filed: 1987-09-09
Granted: 1991-09-10
Abstract: WIDEBAND ADAPTIVE ARRAY                 USING THE CHIRP TRANSFORM                ABSTRACT OF THE DISCLOSURE     An adaptive array processor is disclosed for pro-cessing the signals from a main antenna and one or more auxiliary  antennas  to  provide  suppression  of  wideband interference.   The outputs from the respective antennas are transformed into the frequency domain by synchronized chirp  transformers  conducted  over  a  transform  block length.   The  transformed  auxiliary  antenna  signal  is weighted  by  time  varying,  frequency  dependent  weights which are adaptively determined.   The transformed main antenna and weighted auxiliary antenna signals are then combined.  The combined signal is then transformed back to the frequency domain by an inverse chirp transformation.
Patent CA-1322321-C (CA)
Inventor: NELSON HENRY J
IPC: C09D9/00
Filed: 1987-09-25
Granted: 1993-09-21
Abstract: ABSTRACT OF THE DISCLOSURE               A paint stripper composition comprising of N-methyl-2-pyrrolidone and an aromatic, high flash hydrocarbon solvent applied to a paintedsurface for stripping paint.  Accelerators useful in the mixture an organic acidsuch as formic acid or an amine such as monoethanolamine.  The paint stripper composition may also include an oil surfactant to aid in wetting the surface of the object to be stripped.  Also, a water soluble surfactant may be added to facilitate water rinsing the composition and loosened paint from the surface.  The paint stripper may be thickened by addition of ethylcellulose to form a paint stripping composition having a thickness appropriate for immersion, spray, brush or knife application.  The composition of the paint stripper may comprise from 20-90% by weight of N-methylpyrrolidone, 30-70% by weight 140° F. flash aromatichydrocarbon solvent, 2-15% by weight formic acid, 0-3% by weight corrosion inhibitor, 0-5% by weight oil soluble nonionic surfactant and 2-6% by weight of water soluble nonionic surfactant and from 0-6% by weight of ethycellulose. instead of the acid and corrosion inhibitor, an amine may be added as an accelerator in the amount of 1 to 5% by weight.  The preferred method of making the paint stripper composition includes vigorously mixing the aromatic solvent as the ethylcellulose is sifted slowly into the solvent.  Then, N-methyl-2-pyrrolidone, the surfactants, and amine are added or, alternatively, the acid is added prior to adding the surfactants instead of the amine.
Patent CA-1294703-C (CA)
Title: System for mechanically steering an airborne antenna
Inventor: ABDELRAZIK MOHAMED
IPC: H01Q3/08
Filed: 1987-11-06
Granted: 1992-01-21
Abstract: SYSTEM FOR MECHANICALLY STEERING AN AIRBORNE ANTENNA     ABSTRACT OF THE DISCLOSURE   A helical-element antenna as part of a communication system is mechanically steered with reference to an azimuth axis and an elevation axis within a positioning envelope greater than hemispherical.   The  system  for  mechanically  steering  the helical  antenna includes a supporting frame having an azimuth member with a  longitudinal  axis  coinciding with  the  azimuth axis around which the antenna rotates.  Further, the supporting frame includes an elevation member that  is integral with the azimuth member and has a longitudinal axis displaced from the azimuth  axis.   An  interface  fitting  rotatably  mounts  the antenna  to  the  elevation  member.   The  supporting  frame is rotatably  mounted  to  a  pedestal  base  that  has  a  plane perpendicular  to  the  azimuth  axis.   To  position  the antenna about the azimuth axis,  an azimuth steering unit is energized to rotate the supporting frame 360 degrees around the azimuth axis.  For positioning the antenna about the elevation axis, an elevation steering unit rotates the interface fitting and the antenna through a gear coupling about the elevation axis.  The total rotation excursion about the elevation axis is typically 180 degrees and points the antenna through a range of elevation angles.
Patent CA-1275702-C (CA)
Inventor: BRENIG THEODORE
IPC: H04B7/26
Filed: 1987-11-26
Granted: 1990-10-30
Abstract: METHOD AND APPARATUS FOR REDUCING HANDOFF ERRORS IN A CELLULAR RADIO TELEPHONE           COMMUNICATIONS SYSTEM               ABSTRACT OF THE DISCLOSURE         Wrong handoffs in a cellular radio telephone RF communications system can be minimized or eliminated without increasing locating receiver equipment require-ments, field strength measurement time or system response time.  Field strength measurements are made at handoff candidate cells and also at cells neighboring (geographically proximate to) those candidate cells.          A weighted average of the measured field strength of the candidate cell and the field strength measured in cells neighboring the candidate cell is calculated for each candidate cell (the field strengths measured by neighboring cells may be multiplied by a weighting factor of 0.5).  The weighted averages for the candidate cells are compared, and the candidate cell corresponding to the highest average is selected to handle the mobile transceiver call.  Statistical analysis shows that this technique for determining handoff candidates significantly reduces the probability that a call will be handed off to a cell which is geographically distant from the mobile transceiver -- even in the presence of propagation anomalies.
Patent CA-1304601-C (CA)
Inventor: GARSHELIS IVAN J
IPC: G01L1/12
Filed: 1987-11-27
Granted: 1992-07-07
Abstract: Abstract of the Disclosure A magnetoelastic torque transducer for providing an electrical signal indicative of the torque applied to a member, the member including ferromagnetic, magnetostrictive means affixed to, associated with or forming a part of the surface of the torqued member for altering in magnetic permeability in response to the application of torque to the member. The ferromagnetic, magnetostrictive means is advantageously formed of a thermally hardened or iron-nickel martensite hardenable steel alloy characterized by a substantially isotropic magnetostriction having an absolute value of at least 5 ppm and including from 0.05 to 0.75 percent by-weight carbon and sufficient of one or more elements selected from Ni, Cr, Co, Ti, Al, Mn, Mo, Cu and B to raise the alloy magnetostriction to at least 5 ppm absolute. Preferably, the ferromagnetic, magnetostrictive means is formed of nickel maraging steel. me transducer comprises a pair of axially spaced-apart annular bands defined withln a region of the ferromagnetic, magnetostrictive means, the bands being endowed with residual stress created, respectively symmetrical right and left hand helically directed magnetic anisotropy of sufficiently large magnitude that the contribution to total magnetic anisotropy of any random anisotropy in the member is negligible. In one aspect of the invention, each said band has at least one circumferential region which is free of residually unstressed areas over at least 50% of its circumferential length. In another aspect of the invention, the alloy is thermally hardened before the bands are endowed with the residual stress-created magnetic anisotropy.
Patent CA-1338694-C (CA)
Title: Thermal transfer printing apparatus and method
Inventor: BUAN DANILO P
IPC: B41J2/315
Filed: 1988-01-05
Granted: 1996-11-12
Abstract: A process of thermal transfer printing which is accomplished in two printing steps. The process utilizes ribbon including a backing layer and an ink donor layer. The ribbon is drawn from a supply spool through a first printing station at which a first portion of the ink is transferred to the backing layer to form a first image thereon. The ribbon continues to and through a second printing station at which the remainder of the ink is transferred to a workpiece in the form of a second image which contrasts with the first image. All that remains of the ribbon as it leaves the second printing station is the backing layer which continues to and through the first printing station once again for the operation already mentioned. Thereupon, the ribbon is drawn onto a take-up spool for eventual disposal. The ink may be fluorescent.
Patent CA-1318497-C (CA)
Inventor: MATSUMURA TOORU
IPC: C08K5/357
Filed: 1988-01-12
Granted: 1993-06-01
Abstract: ABSTRACT OF THE DISCLOSURE     A polyolefin composition incorporating in 100 parts by weight of a polyolefin, (A) 0.05 to 1 part by weight of a hindered amine type compound, (B) 0.02 to l part by weight of an organic phosphorus type compound, and (C) 0.02 to 0.5 part by weight of hydrotalcite.
Patent CA-1286926-C (CA)
Inventor: KASCHPER JURGEN R
IPC: B29C70/48
Filed: 1988-01-25
Granted: 1991-07-30
Abstract: TITLE         OAR FOR RACING SHELLS AND METHOD OF MAKING SAME                              INVENTOR                         Jurgen Rolf KASHPER     ABSTRACT           A resin and transfer molding technique is used to fabricate, in a unitary fashion, a synthetic oar that has as a core, polyurethane and a longitudinal rigid rectangular spline preferably sitka spruce which tranverses orthogonally and extends along the longitudinal axis of the shaft of the oar, the shaft handle therefore and opposite paddle end being unitarily molded according to the resin transfer molding technique.  Prior to such molding a green oar substructure is made of the shaft and handle on the one hand, and the paddle on the other hand where a multi-layer wrap of synthetic material is formed over the spline in relation to the shaft and in the paddle mold in relation to the paddle and the cavities are cores thereof filled with green polyurethane. The two components so formed, being the green paddle, and the green shaft, are merged together and further wraps of synthetic material overlaid. The enwrapped overlayed green oar is placed in the resin transfer mold wherein a thermo-setting resin is inserted, the mold elevated to a curing temperature, and the complete oar fabricated.  On cooling it is removed and the outside surface finished as required.
Patent CA-1297285-C (CA)
Title: High accuracy structured light profiler
Inventor: HARDING KEVIN G
IPC: G01B11/25
Filed: 1988-03-24
Granted: 1992-03-17
Abstract: ABSTRACT OF THE DISCLOSURE      An optical gauging  system for  evaluating the  surface shape of a workpiece along a particular cross section.   The gauging  system  includes   an  illumination  system   which projects a  line of  light onto  the workpiece  surface.   A viewing system is focused along a line which is  illuminated when a  workpiece  surface is  intersected  by the  line  of light.  The focused  line of the  viewing system is  imaged onto a linear  detector array.  A  translation mechanism  is provided which moves the line of light and the focused  line of the viewing system into the workpiece along the plane  of the cross section of interest.  The relationship between the translation mechanism and the output of the array is related to the  profile  shape  of the  workpiece  along  the  cross section of interest.
Patent CA-1307304-C (CA)
Title: Seal
Inventor: BOULTON PAUL D
IPC: E21B33/047
Filed: 1988-06-10
Granted: 1992-09-08
Abstract: ABSTRACT    A seal assembly for providing a primary metal-to-metal seal between the outer wall of a tubular member and the inner wall of a surrounding receiving bore slidingly receiving  the  tubular  member.    The  sealing  assembly includes  a metal  seal  ring member having the general configuration of a toroid which has been flattened on its upper and lower surfaces.  The metal seal ring member has a close fit on the outer wall of the tubular member, and an interference fit with the wall of the receiving bore.          When stabbed into the receiving bore, the metal seal ring member coins onto the walls of the tubular member and the bore, resulting in an effective metal-to-metal seal.  The seal assembly preferably includes a compliant seal ring member of  a preferably high lubricity material,  e.g., Teflon*,  disposed on the tubular member below the metal seal ring member.  The compliant seal ring member tends to clean, and possibly lubricate, the receiving bore as the tubular member is stabbed therein and withdrawn therefrom, and to prevent damage to the bore during such operations.          It also provides a low pressure environmental seal.   An elastomer seal ring may be disposed on the tubular member above  the  metal  seal  ring  to  provide  an  additional environmental seal or a back-up seal.           *trade-mark
Patent CA-1286793-C (CA)
Inventor: DENTINI MARK S
IPC: C08K3/22
Filed: 1988-06-28
Granted: 1991-07-23
Abstract: THERMAL CONDUCTOR ASSEMBLY            Abstract A compressible thermally conductive member comprises a polymer field with thermally conducting magnetically aligned particles comprising a baseportion and a multiplicity of protrusions extending from at least one surface of the base portion.
Patent CA-1285314-C (CA)
Title: Motor starting circuit with low cost comparator hysteresis
Inventor: BOSSI JOSEPH S
IPC: H02P1/44
Filed: 1988-07-21
Granted: 1991-06-25
Abstract: Abstract A low cost, low part content single phase AC induction motor control starting circuit is provided which is speed sensitive, load sensitive and AC line voltage fluctuation insensitive.  A dual comparator chip (20, 22) senses and compares relative magnitudes of AC line and auxiliary winding voltages (48, 40) to de-energize the auxiliary winding (2) at cut-out speed, and automatically re-energize the auxiliary winding at cut-in speed to accelerate or restart the motor from an overload or stall condition. Hysteresis circuitry (20, 50, 52, 57, 80) provides a lower cut in speed than cut-out speed.  Simplified power supply and voltage detection circuitry is also disclosed.
Patent CA-1304773-C (CA)
Inventor: SHODA ISAO
IPC: H05B41/24
Filed: 1988-07-27
Granted: 1992-07-07
Abstract: ABSTRACT     A power supply circuit for a magnetron adapted to supply microwave energy to an electrodeless discharge bulb is disclosed the circuit comprises a rectifier coupled across a commercial AC voltage source, a filter for smoothing the output of the rectifier, an inverter for converting the DC voltage supplied from the filter into a high frequency AC voltage, a step-up transformer for stepping up the high frequency AC voltage outputted from the inverter, and a rectifier which rectifies the high voltage AC output of the transformer into a unidirectional voltage which is supplied to the magnetron.  The inverter switching is controlled by a pulse width modulation control circuit to maintain the magnetron output power at a predetermined level.          According to one aspect, an inductance is provided in the circuit which supresses high frequency components in the currents flowing through the windings of the transformer; according to another aspect, the inverter switching frequency (expressed in kHz) is set at a value not less than 1500/D, wherein D represents the diameter of the electrodeless bulb expressed in millimeters; according to still another aspect, the peak to the mean value ratio of the magnetron current is limited under 3.75 inclusive.
Patent CA-1333539-C (CA)
Title: Method for processing silver halide color photographic material
Inventor: YOSHIDA KAZUAKI
IPC: G03C7/44
Filed: 1988-10-12
Granted: 1994-12-20
Abstract: A method for continuously processing silver halide color photographic material with a color developer containing at least one aromatic primary amine color-developing agent is disclosed.  In the method a silver halide color photographic material at least one of the layers of which contains a silver halide emulsion of a high chloride comprising 80 mol% or over of silver chloride is processed, after exposure to light, with a color developer that is substantially free from sulfite ions and whose replenishing amount is 120 ml or below per m2 of the silver halide photographic material, to attain desired photographic characteristics.