Patents

Searching:





Search by keyword, patent number, inventor, assignee, city or state:




Patent # Description
US-4,873,173 Method of forming image providing a change in sensitivity by altering the pH of the developer
A method of forming an image is provided. The method comprises the steps of (a) imagewise exposing a photographic material which comprises a support having...
US-4,873,172 Process for forming a superhigh contrast negative image
A process for forming a superhigh contrast negative image with a stable developer is disclosed, which comprises development processing a silver halide...
US-4,873,171 Image-receiving element for diffusion transfer photographic product
An image-receiving element for use in photographic diffusion transfer film units of the "peel-apart" type is disclosed, comprising a support material; a...
US-4,873,170 Method for making lithographic printing plate
There is provided a method for making a lithographic printing plate having high sensitivity, resolving power and printing endurance and free from scumming...
US-4,873,169 Process for the preparation of an o-naphthoquinonediazide sulfonic acid ester and photosensitive mixture...
A process for the preparation of an o-naphthoquinonediazide sulfonic acid ester is disclosed. Esterification of an o-naphthoquinonediazide sulfonic acid halide...
US-4,873,168 Imaging system utilizing heat treatment
A method for treating an imaging sheet is disclosed. The method includes the steps of providing an imaging sheet having coated on one of its surfaces a layer of...
US-4,873,167 Self cleaning sheet for dissolving a photo-sensitive material containing microcapsules on both sides of substrate
The disclosed is a cleaning sheet comprising second microcapsules, which encapsulate a solvent dissolvable of a photo-curable material, so that any radiation...
US-4,873,166 Liquid developer for electrophotography
Disclosed is a process for producing a liquid developer for electrostatic photography which comprises a highly insulating hydrocarbon medium and resin particles...
US-4,873,165 Electrophotographic photoreceptor having overlayer comprising carbon
An electrophotographic photoreceptor is disclosed, which comprises a support, a light-sensitive layer and a surface layer, the surface layer being predominantly...
US-4,873,164 Electrophotographic photoreceptor comprising a charge transport medium and a bis-azo compound containing oxygen
An electrophotographic photoreceptor according to the present invention has a photosensitive layer comprising a bis-azo compound represented by the general...
US-4,873,163 Photomask material
A photomask material according to the present invention comprises a transparent substrate and a silicide film of a transition metal formed on the transparent...
US-4,873,162 X-ray mask and a manufacture method therefor
An x-ray mask for x-ray lithography has an x-ray absorber pattern which is formed from a Ti-W alloy with a Ti content of 0.5-10 weight %. A method for the...
US-4,873,161 Positive paste with lead-coated glass fibers
A reliable positive plate for deep cycle lead-acid batteries is provided by dispersing about 2 percent by volume of fine, short, lead-coated reinforcement fibers...
US-4,873,160 Rechargeable battery
A rechargeable battery comprises an internal cell having a pair of electrodes, an insulated cylindrical case having an internal space for holding the internal...
US-4,873,159 Battery blanket device
A batttery blanket is set forth particularly in combination with a battery for use in an automotive environment and the like to shield the enclosed battery. The...
US-4,873,158 Overdischarge protection for rechargeable cells
A rechargeable electrochemical cell which resists venting in an over-discharge condition. A first microporous membrane is provided as a separator between the...
US-4,873,157 Recombinant electric storage battery
A recombinant electric storage battery which includes separators of multiple fiber electrolyte absorbency that retain a balanced amount of absorbed electrolyte,...
US-4,873,156 Solid electrolytic fuel cell and method for manufacturing same
A cylindrical solid electrolytic fuel cell which includes an oxygen electrode constituting the innermost layer of the fuel cell and having a thickness of 1 mm or...
US-4,873,155 Fuel cell manifolds
A fuel cell manifold mounted airtightly on the side walls of a fuel cell stack, the manifold comprising a seal layer covering the periphery of a wall of the fuel...
US-4,873,154 Magnetic recording medium containing Fe, Co, N and O
A magnetic recording medium, such as a tape, having a thin ferromagnetic film containing Fe.sub.a Co.sub.b N.sub.c O.sub.d satisfying: 32%.ltoreq.a.ltoreq.90%;...
US-4,873,153 Hot-dip galvanized coating for steel
A hot-dip galvanized coating for improved resistance welding of galvanized steel parts or sheets includes particles of a metal phosphide, and preferably...
US-4,873,152 Heat treated chemically vapor deposited products
"A coated substrate product is described wherein the outer coating on the substrate is comprised of a chemically vapor deposited and heat treated mixture of...
US-4,873,151 Aluminum nitride circuit substrate
Disclosed is an aluminum nitride circuit substrate comprising an aluminum nitride plate and a conductive material bonded to the aluminum nitride plate through a...
US-4,873,150 High water-resistant member, and valve gear using the same for use in internal combustion engine
A wear-resistant metal member comprises a surface that has a sprayed layer consisting essentially of, by weight, 2 to 10% C, 18 to 60% Cr, 0.3 to 20% V, 25% or...
US-4,873,149 Vibration-damper metal sheets
The present invention relates to a vibration-damping metal sheet. Conventional vibration-damping metal sheets such as single metal sheets of Mn-Cu base alloys, etc.,...
US-4,873,148 Coated metallic particles and process for producing same
Metallic coated particles are disclosed which comprise a core consisting essentially of a material selected from the group consisting of metals, metal alloys,...
US-4,873,147 Process for waterproofing starch binders
This invention relates to a process for applying waterproof starch layers to substrates, which comprises applying an aqueous starch dispersion containing a...
US-4,873,146 Transparent fire-screening panels
A transparent fire-screening glazing panel has at least one solid intumescent layer comprising a hydrated alkali metal silicate and at least one sheet of glazing...
US-4,873,145 Resin-coated aggregates
A substantially water-resistant resin-coated aggregate for use in concrete includes a porous aggregate body, such as an artificial light weight aggregate, with...
US-4,873,144 Fiber for composite reinforcement with anti-blocking finish
High tenacity reinforcing fiber, selected from the group consisting of polyester, aliphatic polyamide, aramid, and combinations thereof, is treated with a finish...
US-4,873,143 Water-swellable fiber
This invention provides a water-swellable fiber which is produced from a fiber having a particular cross-sectional structure and containing and linking carboxyl...
US-4,873,142 Acrylic fibers having superior abrasion/fatigue resistance
Acrylic fibers are provided having superior abrasion resistance and flex fatigue properties as well as other properties desirable for end use applications in...
US-4,873,141 High mechanical strength water resistant insulating material and a method for preparing the same
The present invention relates to a new calcium-hydrosilicate based composition, consisting predominantly of 11 .ANG. tobermorite of fibrous structure and having...
US-4,873,140 Articles having low adhesion articles having coatings thereon
A coated article with a substrate having a low surface energy coating thereon, said coating comprising an in situ polymerized monofunctional ...
US-4,873,139 Corrosion resistant silver and copper surfaces
Techniques are described for rendering silver and copper surfaces of various articles resistant to corrosion. The surfaces are contacted with compounds selected...
US-4,873,138 Metallic thin film type magnetic recording medium
A magnetic recording medium with a magnetic thin film as a magnetic recording layer is described. The medium is comprised of a polymer support, a ferromagnetic...
US-4,873,137 Food tray
A composite structure comprising at least one core layer comprising polyethylene terephthalate and at least one outer layer on each side of the core layer,...
US-4,873,136 Method for preparing polymer surfaces for subsequent plating thereon, and improved metal-plated plastic...
An improved method for pretreating a polyimide surface in preparation for an adhesion promotion treatment and subsequent metallization is disclosed, wherein the...
US-4,873,135 Preframed transparency film having improved feeding reliability
Sheet material suitable for preparing visual transparencies comprising: (a) a backing that is transparent to visible light, (b) an image receptive layer transparent to...
US-4,873,134 Hot melt ink projection transparency
In the particular embodiments of the invention described in the specification, a projection transparency includes a transparent substrate and an ink pattern...
US-4,873,133 Fiber reinforced stampable thermoplastic sheet
Fiber reinforced thermoplastic articles having an improved surface are produced in a stampable sheet which is produced from a reinforcing fiber mat having a...
US-4,873,132 Surface protector with expansible pocket
A protector article and method of forming the same for use as a paint mask or water shield. The article comprises a generally flat and relatively thin sheet of...
US-4,873,131 Optical recording medium
An optical recording medium having a thin film layer consisting mainly of an organic dye and formed on a substrate and characterized in that said thin film layer...
US-4,873,130 Coating process for the preparation of coherent protective layer
A process for the preparation of a coherent protective layer on a substrate surface of a body, the substrate surface comprising elemental metal or an alloy...
US-4,873,129 Magnetic recording medium
A coating magnetic recording medium which comprises two or more kinds of magnetic films different from one another provided on the same side surface of a...
US-4,873,128 Process for pultruding fiber reinforced phenolic resin products
The present invention is a process for pultruding fiber reinforced phenolic resin products, in which the phenolic resin normally has a viscosity ranging from...
US-4,873,127 Method of making heat transfer tube
A heat transfer tube comprising an inner tube formed of copper or steel, an intermediate layer having a uniform thickness, mounted on the outer periphery of the...
US-4,873,126 System and process for spotting reagents on porous supports
A system having a coating station comprised of a dispensing assembly and a fluid collection head is useful in a method to precisely coat reagents on porous...
US-4,873,125 Method for forming deposited film
A method for forming deposited film, which comprises effecting a step [A] and another step [B] at least one time, the step [A] being the introduction of a...
US-4,873,124 Heat stable prepastes for wallcoverings
A method of producing a prepasted wallcovering comprises applying to a substrate a paste composition comprising a water-in-oil emulsion of a water-soluble...
← Previous | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | Next →