Adjacent Functionally Defined Components Patents (Class 428/686)
  • Patent number: 5538795
    Abstract: A multilayer structure has a selectable, (i) propagating reaction front velocity V, (ii) reaction initiation temperature attained by application of external energy and (iii) amount of energy delivered by a reaction of alternating unreacted layers of the multilayer structure. Because V is selectable and controllable, a variety of different applications for the multilayer structures are possible, including but not limited to their use as ignitors, in joining applications, in fabrication of new materials, as smart materials and in medical applications and devices. The multilayer structure has a period D, and an energy release rate constant K. Two or more alternating unreacted layers are made of different materials and separated by reacted zones. The period D is equal to a sum of the widths of each single alternating reaction layer of a particular material, and also includes a sum of reacted zone widths, t.sub.i, in the period D.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: July 23, 1996
    Assignee: The Regents of the University of California
    Inventors: Troy W. Barbee, Jr., Timothy Weihs
  • Patent number: 5480496
    Abstract: A method of making twin roll cast clad material includes producing a composite material using a liner stock produced by drag casting techniques. The drag cast liner stock can be directly used in a twin roll continuous casting process without additional process steps such as heat treatment, surface cleaning and/or rolling. The drag cast liner stock can be applied to one or both of the surfaces of the twin roll cast material to produce a composite material that is useful in a cast form or can be adapted for reduction by rolling processes or the like. The twin roll cast cladding process can utilize aluminum alloy core and cladding materials to form a brazing sheet from the as-cast composite material.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: January 2, 1996
    Assignee: Reynolds Metals Company
    Inventor: Bennie R. Ward
  • Patent number: 5458985
    Abstract: A method of manufacturing a stamper includes the steps of coating a flat surface of a substrate with photosensitive material; directing light to a specified position on the photosensitive material to expose it; developing the photosensitive material to make a minute photoresist pattern; etching the substrate to a specified depth with a mask of the photoresist pattern; removing the photoresist as the mask to make a glass master; arbitrarily forming a first nickel layer on a surface of the glass master; forming an intermediate layer of a metal having a smaller linear expansion coefficient than nickel over the first nickel layer; forming a second nickel layer on the intermediate layer to form a conductive film having a two- or three-stratum structure; arbitrarily subjecting the whole substrate to a process to make nickel passive; forming an electroformed layer on the conductive film by an electroforming process; and separating the conductive film from the glass master.
    Type: Grant
    Filed: August 16, 1994
    Date of Patent: October 17, 1995
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hitoshi Isono, Hirotoshi Takemori
  • Patent number: 5429879
    Abstract: A laminated metal composite of low flow stress layers and high flow stress layers is described which is formed using flow constraining elements, preferably in the shape of rings, individually placed around each of the low flow stress layers while pressure is applied to the stack to bond the layers of the composite together, to thereby restrain the flow of the low flow stress layers from the stack during the bonding. The laminated metal composite of the invention is made by the steps of forming a stack of alternate layers of low flow stress layers and high flow stress layers with each layer of low flow stress material surrounded by an individual flow constraining element, such as a ring, and then applying pressure to the top and bottom surfaces of the resulting stack to bond the dissimilar layers together, for example, by compression rolling the stack.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: July 4, 1995
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Chol K. Syn, Donald R. Lesuer
  • Patent number: 5112699
    Abstract: Metal film and metal superlattice structures with controlled orientations are grown at room temperature using a silicon or germanium substrate coated with an epitaxially grown copper layer. The metal films are preferably deposited by electron beam evaporation without external heating of the copper coated substrate.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: May 12, 1992
    Assignee: International Business Machines Corporation
    Inventor: Chin-An Chang
  • Patent number: 5008160
    Abstract: Adherent metal coatings of metals that cannot be adherently applied directly onto a desired substrate metal by chemical vapor deposition at a temperature below about 300.degree. C. are obtained by applying an adherent metal undercoating to the surface of the metal substrate which weakly or not at all chemisorbs carbon monoxide, then applying the desired outercoat metal to the undercoated substrate by chemical vapor deposition, using a heat decomposable metal carbonyl as the source of the desired outer coating metal. The undercoating metal may be applied by conventional plating processes such as electroplating or electroless plating. In preferred embodiments, the substrate is iron or steel or their alloys, the undercoating metal is copper, and the outer coating metal is a ferrous metal, i.e., nickel, iron, or cobalt.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: April 16, 1991
    Inventor: William C. Jenkin
  • Patent number: 4897829
    Abstract: A cardlike optical recording medium comprises a substrate, a recording layer and a protective layer, wherein an ultra-hard film containing a carbon atom is provided at least on the side of said optical recording medium on which a laser beam for writing-reproducing is irradiated.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: January 30, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keiko Ikoma, Noriko Kurihara, Keiji Hirabayashi, Susumu Itoh
  • Patent number: 4882231
    Abstract: The magneto-optical recording medium is disclosed which has a laminous structure with a first magnetic film suited to provide a large rotation angle of the plane of polarization by magneto-optical interaction, a third magnetic film having a great coercive force, and a second magnetic film interposed therebetween to magnetically couple the first and third magnetic films at room temperature, wherein such magnetic coupling is substantially interrupted at a temperature in a recording operation.Upon recording signal on the medium, a laser beam is irradiated to the medium and raises the temperature of the medium near Curie temperature Tc3 of the third magnetic film, thus direction of the magnetization is determined by the magnetic field applied to the irradiated portion.Upon cooling the irradiated portion, the second magnetic film serves to magnetically couple the first and third magnetic film, the magnetization of the third film is transferred to the first film.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: November 21, 1989
    Assignee: Sony Corporation
    Inventor: Katsuhisa Aratani
  • Patent number: 4833020
    Abstract: In a magnetic recording medium including an underlayer and a magnetic layer formed sequentially on a substrate, the underlayer is composed of a composite underlayer having an at least two-layered structure, the underlayer on the side of the substrate is made of a material providing low modulation to the magnetic recording medium while the underlayer on the side of the magnetic layer is made of a material providing a high S/N ratio to the medium. This makes it possible to obtain a magnetic recording medium having low modulation and high S/N ratio.
    Type: Grant
    Filed: January 28, 1988
    Date of Patent: May 23, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Yoshihiro Shiroishi, Sadao Hishiyama, Hiroyuki Suzuki, Tomoyuki Ohno, Yoshibumi Matsuda, Kazumasa Takagi, Yoshio Gobara, Norikazu Tsumita, Masaki Ohura, Masaaki Hayashi
  • Patent number: 4778732
    Abstract: An electrically conductive glass sheet used as a fog-resistant automotive window glass sheet. The electrically conductive glass sheet comprises a glass sheet, a pair of busbars, an electrically conductive thin film, and protective coatings. The busbars are formed in spaced relation on the surface of the glass sheet by baking electrically conductive paste printed on the surface of the glass sheet. The electrically conductive thin film formed on the surface of the glass sheet has ends or junctions connected to the busbars in overlapping relation to the surfaces of the busbars, the junctions being covered with the protective coatings. Since the junctions are covered with the protective coatings, good electric conductivity through the junctions is ensured for increased fog resistance, and variations from glass sheet to glass sheet are reduced.
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: October 18, 1988
    Assignee: Nippon Sheet Glass Company
    Inventors: Jun Hasegawa, Jun Kawaguchi
  • Patent number: 4753853
    Abstract: A double-layered magnetooptical recording medium consists of two exchange-coupled layers that permit perpendicular magnetization, one layer having a low Curie point and a high coercive force and the other layer having a high Curie point and a low coercive force. The layer having low coercive force is made of a transition metal rich amporphous Gd.sub.U (Fe.sub.V Co.sub.100-V).sub.100-U alloy having the following compositional range, and the layer having high coercive force is made of a transition metal rich amorphous Tb.sub.W Fe.sub.100-W alloy having the following compositional range:U=20-26 atomic %,V=50-80 atomic %, andW=27-33 atomic %.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: June 28, 1988
    Assignee: Nippon Kogaku K.K.
    Inventors: Masatoshi Sato, Hideki Akasaka
  • Patent number: 4714641
    Abstract: A ferromagnetic film for magnetic recording comprises a copper substrate having particles of iron and iron oxides dispersed in the surface layer of the copper. The particles have maximum dimensions in the range between 50 and 500 Angstroms. The ferromagnetic film can be formed by ion implantation of iron ions into the copper substrate followed by heat treatment to permit growth of ferromagnetic particles to the desired size. As an alternative to ion implantation, the iron can be deposited on the copper substrate by sputtering or evaporation and mixed with the copper by ion beam mixing.
    Type: Grant
    Filed: March 4, 1985
    Date of Patent: December 22, 1987
    Assignee: Varian Associates, Inc.
    Inventor: Bernhard F. Cordts
  • Patent number: 4690861
    Abstract: A magneto optical recording medium comprising laminating a reflective layer, a dielectric undercoat layer and a hexagonal magnetoplumbite-type metal oxide magnetic layer on a substrate in order, characterized by that said magnetic layer is made an excellently C axis - orientated perpendicular magnetic film by putting the crystal misfit between said reflective layer and said dielectric undercoat layer formed thereon within .+-.30% and the crystal misfit between said dielectric undercoat layer and said hexagonal magnetoplumbite -type metal oxide magnetic layer formed thereon within .+-.30%, and thus various characteristics are widely improved.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: September 1, 1987
    Assignee: Ricoh Co., Ltd.
    Inventors: Hitoshi Nakamura, Yujiro Kaneko, Yasuo Sawada, Hajime Machida, Fumiya Omi, Atsuyuki Watada
  • Patent number: 4686154
    Abstract: A security label comprised of at least two magnetically soft materials having different coercivities but similar thresholds of magnetic saturation.
    Type: Grant
    Filed: March 1, 1984
    Date of Patent: August 11, 1987
    Assignee: Sigma Security Inc.
    Inventor: Ezequiel Mejia
  • Patent number: 4666787
    Abstract: A material which is intended for use in sliding surface bearings comprises a metallic backing, a porous metallic substrate layer applied to said backing, and a PTFE-filler mixture, which completely fills the pores of the substrate layer and constitutes an antifriction layer. The bond strength between the antifriction layer and the substrate layer is improved by coating that surface of the substrate layer which faces the antifriction layer with a primer.
    Type: Grant
    Filed: February 14, 1986
    Date of Patent: May 19, 1987
    Assignee: Kolbenschmidt Aktiengesellschaft
    Inventors: Wolfgang Bickle, Jurgen Braus, Hans-Paul Baureis
  • Patent number: 4636448
    Abstract: In a magnetic recording medium particularly for perpendicular magnetization comprising a non-magnetic substrate and a magnetic thin film formed on the surface thereof and including at least two layers, a lower layer with low coercive force and high permeability, for example, of permalloy is sputtered on the substrate and an upper layer for perpendicular recording, for example, of cobalt-chromium alloy is sputtered on the lower layer, and the average grain diameter of the lower layer is less than one half of that of the upper layer.
    Type: Grant
    Filed: January 16, 1985
    Date of Patent: January 13, 1987
    Assignee: TDK Corporation
    Inventors: Haruyuki Morita, Jiro Yoshinari, Kazumasa Fukuda
  • Patent number: 4612258
    Abstract: A method of thermally oxidizing polycide substrates in a dry oxygen environment as well as a MOSFET structure provided by the method are disclosed. The method includes heating a plurality of polycide substrates to temperatures greater than about 800 degrees Centigrade in a dry oxygen environment, and introducing into the environment an amount of a halogenated alkane gas sufficient to induce oxidation.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: September 16, 1986
    Assignee: Zilog, Inc.
    Inventor: Juine-Kai Tsang
  • Patent number: 4600660
    Abstract: A foil material for the storage of hydrogen in materials capable of bearing hydrogen, i.e. a hydrogen storageable material. Through the intermediary of a heat-conductive bond between a metal having hydrogen storage capability and a substrate, which is adapted for the absorption and conducting off of the reaction heat produced during hydrogen exchange, and on which the hydrogen storageable metal is applied as a storage layer, there is afforded a rapid heat exchange during the loading and unloading of the storage layer. Employed for this purpose is the heat capacity of the substrate. The material for the substrate and the volume of the latter is so selected that the reaction to heat is exchangeable with the substrate of the storage layer without the need for ancillary heat exchangers; in effect, can be taken up by or given up from the substrate. The storage layer has its exposed surface covered with a protective layer which acts in a corrosion-inhibiting manner and which is permeable to hydrogen.
    Type: Grant
    Filed: November 29, 1983
    Date of Patent: July 15, 1986
    Assignee: Kernforschungsanlage Julich Gesellschaft mit beschrankter Haftung
    Inventors: Karl-Heinz Klatt, Helmut Wenzl, Paul Meuffels
  • Patent number: 4572768
    Abstract: An improved treatment for copper foil that is to be used for lamination to a board comprises electrodepositing a dendritic layer of copper on the side of the foil that is to be laminated to the board. The dendritic layer is secured by electrodepositing a gilding layer of copper over it. A barrier layer is next electrodeposited over the gilding layer. The barrier layer is formed by means such as electrodeposition from a solution containing ions of zinc, nickel and antimony. This in turn is covered with an anticorrosion layer that is formed of chromates or phosphates, disposed over the barrier layer.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: February 25, 1986
    Assignee: Square D Company
    Inventors: Adam M. Wolski, Chintsai T. Cheng, Richard B. Simon, Manoj C. Gambhirwala
  • Patent number: 4522890
    Abstract: A composite structure of thin films including alternating layers of relatively high conductivity metals and low conductivity metals to combine the effects of reflection and absorption and thereby maximize the attenuation of the structure. Additionally, a similar structure of layers of materials with differing magnetic permeabilities may be used for the same purpose.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: June 11, 1985
    Assignee: Illinois Tool Works Inc.
    Inventors: Jack C. Volkers, William R. Conley
  • Patent number: 4511634
    Abstract: The invention refers to a corrosion-proof solderable system of layers which is applied to a support and is made of a solderable layer and a corrosion-protection layer covering the solderable layer and protecting it from complete oxidation. In order to create a layer system which is simpler and cheaper to manufacture, the solderable layer contains a proportion of oxidizable metal.The corrosion-protection layer is made by oxidation of the solderable layer on its free surface.
    Type: Grant
    Filed: March 3, 1982
    Date of Patent: April 16, 1985
    Assignee: VDO Adolf Schindling AG
    Inventor: Friedrich W. Nickol
  • Patent number: 4500611
    Abstract: A corrosion-resistant solderable layer system is connected to an unsolderable layer, the layer system and the unsolderable layer being applied to a support and comprises a solderable layer and an anti-corrosion layer which covers the solderable layer and protects the latter against oxidation. The anti-corrosion layer is made of an oxidizable metal.
    Type: Grant
    Filed: July 22, 1981
    Date of Patent: February 19, 1985
    Assignee: VDO Adolf Schindling AG
    Inventors: Friedrich W. Nickol, Holm Baeger
  • Patent number: 4380368
    Abstract: A projection screen comprises a metal plate member having substantially independent short raised ridges uniformly over the surface. In a process for treating the surface of a metal plate member, a metal plate member and a rough surface contacting the surface of the metal plate member are moved along respective axes intersecting at a certain angle to form raised ridges of typically 100 microns or less in length.
    Type: Grant
    Filed: August 20, 1980
    Date of Patent: April 19, 1983
    Inventors: Ken Ohmata, Hideya Aoki, Naoyuki Tamura
  • Patent number: 4380574
    Abstract: A high-damping composite material, which consists of a metal or metal alloy base material having poor damping properties which determines the strength and shape of said material, and a metal or metal-alloy surface layer surrounding said base material on all sides which has high mechanical damping properties.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: April 19, 1983
    Assignee: BBC Brown, Boveri & Company, Ltd.
    Inventors: Gernot Gessinger, Olivier Mercier
  • Patent number: 4287266
    Abstract: A continuous film having a solar selective coating on one surface and adhesive on the opposite surface is produced by a coil type process. The film may be cut to size and shape for application to solar collectors.
    Type: Grant
    Filed: November 8, 1979
    Date of Patent: September 1, 1981
    Assignee: Grumman Aerospace Corp.
    Inventor: James M. Myles
  • Patent number: 4262770
    Abstract: A porous acoustic element is disclosed having a configuration comprised of individual cross-wound porous layers of widely varying porosity, with transition plenum layers interposed therebetween having a configuration so as to prevent formation of blockages and small area openings which would be created by a direct overlay winding of differing pitch. The porosity of each wound layer increases in successive layers to compensate for expansion of the gas as it flows through the element. The resulting porous element allows gaseous flow therethrough, with maximum pressure energy dissipation and controlled velocity to minimize aerodynamic noise created by flow through valves and other flow restrictions. A specific embodiment is disclosed in which the porous layers are created by variable pitch wire ribbon cross windings and the transition layers are provided by wire mesh having relatively large openings.
    Type: Grant
    Filed: September 22, 1978
    Date of Patent: April 21, 1981
    Assignee: Facet Enterprises, Inc.
    Inventor: Andrew R. Spencer
  • Patent number: 4247602
    Abstract: Silver alloy wire for the production of jewelry, especially jewelry chains is made of a solder containing nucleus and a jacket of silver or silver alloy wherein the solder containing nucleus has a core of silver or silver alloy surrounded by a layer of brass.
    Type: Grant
    Filed: June 13, 1979
    Date of Patent: January 27, 1981
    Assignee: Ferd. Wagner
    Inventors: Hans Krug, Kurt Heilmann
  • Patent number: 4211838
    Abstract: A dry process high sensitivity imaging film includes a solid, high optical density and substantially opaque film of dispersion imaging material deposited on a substrate. The film of dispersion imaging material comprises a plurality of separate layers of different and substantially mutually insoluble metal components having relatively high melting points and relatively low melting point eutectics, and interfaces between said layers having relatively low melting points.
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: July 8, 1980
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Masatsugu Izu, Vincent D. Cannella
  • Patent number: 4210389
    Abstract: A solid state laser rod and a mount through which heat is dissipated from the rod are joined together at a bond comprised of a reflective layer on the surface of the rod, a barrier layer over the reflective layer, and a solder layer between the barrier layer and the mount. The reflective layer may be applied by sputter or other deposition procedures and is highly reflective in the region of the spectrum at which the laser operates, thus insuring optimum efficiency for the rod. The barrier layer may be applied to the reflective layer by the same deposition procedure, and it is impervious to the solder so that the solder does not penetrate it and scavenge the reflective layer. The solder should have a low melting point so as to avoid setting up excessive mechanical stresses in the rod when the solder solidifies. Both the mount and the barrier layer may be covered with a wetting layer prior to soldering to achieve better adhesion of the solder.
    Type: Grant
    Filed: November 14, 1978
    Date of Patent: July 1, 1980
    Assignee: McDonnell Douglas Corporation
    Inventors: Gordon H. Burkhart, Robert R. Rice, James R. Teague
  • Patent number: 4188458
    Abstract: Steel surfaces are protected from erosion and corrosion by a coating which includes at least three metallic layers of increasing normal potential from the base layer lying on the steel surface to that layer farthest from the steel surface. Also, the base layer immediately adjacent the steel surface has approximately the same normal potential as the steel surface.
    Type: Grant
    Filed: April 6, 1977
    Date of Patent: February 12, 1980
    Assignee: Stal-Laval Turbin AB
    Inventors: Evald Hugosson, Anders Kullendorf
  • Patent number: 4171464
    Abstract: A composite superconductor formed from a high specific heat ceramic such as gadolinium oxide or gadolinium-aluminum oxide and a conventional metal conductor such as copper or aluminum which are insolubly mixed together to provide adiabatic stability in a superconducting mode of operation. The addition of a few percent of insoluble gadolinium-aluminum oxide powder or gadolinium oxide powder to copper, increases the measured specific heat of the composite by one to two orders of magnitude below the 5.degree. K. level while maintaining the high thermal and electrical conductivity of the conventional metal conductor.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: October 16, 1979
    Assignee: The United State of America as represented by the U. S. Department of Energy
    Inventor: William A. Steyert, Jr.
  • Patent number: 4036601
    Abstract: A turbine blade includes a core made of a highly heat-resistant alloy and a highly heat-resistant, nonporous, corrosion-resistant, metallic protective cover fitted onto the core. The cover forms a gas-tight metallurgical bond with the core and has great strength, high ductility and a uniform layer thickness. The process includes the steps of preshaping a core of highly heat-resistant material and fitting the preshaped core into a substantially preshaped, corrosion-resistant and highly heat-resistant cover. The cover is welded to the core at a point which during later use is subjected only to little stress to form a vacuum-tight seal and workpiece. The workpiece is heated in a pressure vessel to a temperature of at least 1000.degree. C, and the cover of the heated workpiece is heat-welded to the core by isotactic hot-pressing without the formation of pores.
    Type: Grant
    Filed: March 26, 1975
    Date of Patent: July 19, 1977
    Assignee: Gesellschaft fur Kernforschung m.b.H.
    Inventors: Peter Weimar, Franz Bauer