Patents Examined by J. L. Barr
  • Patent number: 4891245
    Abstract: A process for producing particles for use in electrophoretic displays, wherein a heavy, solid pigment preferred for its high contrast or refractive index properties is coated with a polymer starting material. The process significantly reduces the specific density of the resultant particle, and creates particles with smooth polymer surfaces that can be chosen for stability in a given electrophoretic carrier fluid, and possess acceptable electrophoretic characteristics.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: January 2, 1990
    Assignee: Koh-I-Noor Rapidograph, Inc.
    Inventor: Fortunato J. Micale
  • Patent number: 4780371
    Abstract: An electrically conductive composition containing a photosensitive epoxy polymer, a reactive plasticizer, and electrically conductive spherical particles wherein the outer surfaces are of a material selected from the group of platinum, palladium and gold. The compositions are used to provide a flexible electically conductive bond between a supporting substrate and a semiconductor.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: October 25, 1988
    Assignee: International Business Machines Corporation
    Inventors: Charles A. Joseph, James R. Petrozello
  • Patent number: 4695504
    Abstract: A thick film resistor composition, comprising a silicide powder composed of a molybdenum disilicide, a tantalum disilicide and a magnesium silicide, and an alkaline earth borosilicate glass powder dispersed in a vehicle containing a heat-depolymerizing organic polymer. The thick film resistor composition, employing this heat-depolymerizing organic polymer, can be fired in a nonoxidizing atmosphere and coexist with base metal materials such as copper electrodes. Owing to the Nb.sub.2 O.sub.5 and Ta.sub.2 O.sub.5 contained in the alkaline earth borosilicate glass powder, the thick film resistor composition is free from sheet resistivity fluctuation, according to resistor length, which would result from diffusion of the electrode material into the resistor.
    Type: Grant
    Filed: June 18, 1986
    Date of Patent: September 22, 1987
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hirotoshi Watanabe, Osamu Makino, Toru Ishida
  • Patent number: 4608192
    Abstract: A stabilized graphite intercalation product can be formed by sequential intercalation of graphite. Graphite is initially intercalated with an alkali metal (M). The unstable alkali metal intercalation compound is then intercalated with an organic acid (R) to form a room temperature stable, graphite intercalation containing a metal charge transfer salt of the type M.sup.+ R.sup.-.
    Type: Grant
    Filed: January 16, 1984
    Date of Patent: August 26, 1986
    Assignee: GTE Laboratories Incorporated
    Inventor: Sophia R. Su
  • Patent number: 4537743
    Abstract: The disclosed electrode composition for a vacuum switch comprises copper, as a principal ingredient, a low melting point metal such as Bi, Pb, In, Li, Sn or any of their alloys, in a content not exceeding 20% by weight, a first additional metal such as Te, Sb, La, Mg or any of their alloys and a refractory metal such as Cr, Fe, Co, Ni, Ti, W or any of their alloys in a content less than 40% by weight.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: August 27, 1985
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takashi Yamanaka, Yasushi Takeya, Mitsumasa Yorita, Toshiaki Horiuchi, Kouichi Inagaki, Eizo Naya, Michinosuke Demizu, Mitsuhiro Okumura
  • Patent number: 4461719
    Abstract: Electrically conductive carbon compositions are disclosed which are formed from carbon having a graphite-like structure and a nitrosyl or nitronium salt or salts. The nitrosyl or nitronium salt reacts with the carbon to intercalate it with charge-exchange atoms or molecules. Binary, ternary and multi-intercalated lamellar compositions are produced according to the particular reaction process selected. The compositions may be used alone as electrical conductors or may be combined in a matrix to form composite conductors.
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: July 24, 1984
    Assignee: F. Lincoln Vogel
    Inventors: F. Lincoln Vogel, William C. Forsman
  • Patent number: 4439346
    Abstract: Polydiacetylene gel compositions, comprised of a polydiacetylene and a gel-forming liquid therefor, are described which undergo a change in color and in physical state to a solution when heated to a predetermined temperature. The gel compositions exhibit hysteresis temperature characteristics which allow the original color change to be maintained and recorded until the solution is cooled below the predetermined temperature. Thus, the gel compositions are useful in temperature-indicating devices for reversibly monitoring a wide range of temperatures. A novel class of polydiacetylene compounds is also described, useful in forming the gel compositions, formed from monomeric diacetylenediol bis(alkoxycarbonylmethylurethanes).
    Type: Grant
    Filed: August 30, 1978
    Date of Patent: March 27, 1984
    Assignee: Allied Corporation
    Inventors: Gordhanbhai N. Patel, Dawn M. Ivory
  • Patent number: 4427992
    Abstract: A desiccant for semiconductor packaging which may be applied in liquid form consists essentially of approximately 60% by weight absolute ethyl alcohol, 25% by weight ethyl acetate, 5% by weight water, 5% by weight a source of boron, aluminum or phosphorus and 5% by weight of an organic silane having the structural formula: ##STR1## where R.sub.1 is a radical selected from the group consisting of H.sup.-, CH.sub.2 .dbd.CH.sup.-, CH.sub.3 O.sup.-, C.sub.2 H.sub.5 O.sup.-, CH.sub.3 CO.sub.2 .sup.-, C.sub.2 H.sub.5 CO.sup.-, and C.sub.3 H.sub.7 O.sup.-, and R is a radical selected from the group consisting of CH.sub.3 O.sup.-, C.sub.2 H.sub.5 O.sup.-, C.sub.3 H.sub.7 O.sup.-, CH.sub.3 CO.sub.2.sup.-, C.sub.2 H.sub.5 CO.sub.2.sup.-, Si.sup.+, OH.sup.-, and O.sup.-. The sources of boron, aluminum, and phosphorus may be halides, oxides or nitrates. Also a process for incorporating the foregoing into semiconductor package and process for formulating the above solution.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: January 24, 1984
    Assignee: Motorola, Inc.
    Inventors: Kim Ritchie, James N. Smith
  • Patent number: 4397774
    Abstract: A method of preparing resistance material in accordance with which metal oxides and/or metal oxidic compounds are heated together with a binder and, possibly, metal. A resistor having a temperature coefficient which is low and independent of the dilution, that is to say the level of the resistance value, is obtained by choosing particles which are smaller than 100 nm and vary within a very narrow range only as the starting material.
    Type: Grant
    Filed: August 14, 1980
    Date of Patent: August 9, 1983
    Assignee: U.S. Philips Corporation
    Inventors: Alexander H. Boonstra, Cornelis A. H. A. Mutsaers
  • Patent number: 4391743
    Abstract: An organic solution of a composition consisting essentially of 100 parts of an indium compound represented by the formulaIn(X).sub.l (Y).sub.mwherein X denotes a chelate ring formed by .beta.-diketones, esters of .beta.-ketoacids or the like, Y denotes an alkoxide formed by aliphatic alcohols or the like, and l and m denote an integer which is either 1 or 2 having the relationship of l+m=3, and from 5 to 20 parts of a tin compound represented by the formulaSn(X').sub.2 or Sn(Y')m'wherein X' denotes a chelate ring formed by .beta.-diketones or esters of .beta.-ketoacids, Y' denotes an alkoxide formed by aliphatic alcohols, and m' denotes 2 or 4, is suitable for deposition of transparent, hardened and low resistivity film coatings of tin-doped indium oxide on a substrate by dipcoating.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: July 5, 1983
    Assignee: Nippon Soda Company Limited
    Inventors: Umio Maeda, Hirofumi Shoji, Yasusuke Wada, Yoshio Horie
  • Patent number: 4391741
    Abstract: A polyoxymethylene composition comprising (a) 100 parts by weight of polyoxymethylene, (b) 2 to 15 parts by weight of electrically conductive carbon black, and (c) 2 to 20 parts by weight of low-density polyethylene has excellent antistatic properties. Shaped articles produced by the polyoxymethylene composition show excellent effects on preventing noise due to static electricity and adhesion of dust.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: July 5, 1983
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Junzo Masamoto, Minoru Hamada, Isamu Suzuki, Takeo Yoshida
  • Patent number: 4390460
    Abstract: Disclosed is a lithium oxide based amorphous material having a composition included in a region defined by lines connecting points A, B, C and D in the composition diagram of the ternary system of Li.sub.2 O.SiO.sub.2.P.sub.2 O.sub.5 shown in FIG. 1 of the accompanying drawings. This amorphous material can be formed by performing sputtering by using as a target a mixture of a lithium silicate/lithium phosphate composition and LiO.sub.2. This amorphous material is excellent in the ionic conductivity.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: June 28, 1983
    Assignee: Hitachi, Ltd.
    Inventors: Katsuki Miyauchi, Tetsu Oi, Tsuneo Suganuma
  • Patent number: 4390458
    Abstract: Electrically conductive articles which comprise a non-conductive matrix containing an electrically conductive dispersion of finely divided ferroalloy, silicon alloy, or mixtures thereof, are described. Compositions for making the articles utilizing various non-conductive materials e.g., plastics, ceramics, and glass, are also described.
    Type: Grant
    Filed: February 28, 1980
    Date of Patent: June 28, 1983
    Assignee: Occidental Chemical Corporation
    Inventor: James P. McKaveney
  • Patent number: 4390461
    Abstract: A ferrite electrode material composed principally of a composition comprising barium oxide and iron oxide and having been calcined with heating in an inert gas atmosphere is excellent in minimizing energy loss and suppressing high-frequency noise.
    Type: Grant
    Filed: April 3, 1981
    Date of Patent: June 28, 1983
    Assignee: Hitachi, Ltd.
    Inventors: Nobuyoshi Tsukiyama, Ryo Ichige
  • Patent number: 4390459
    Abstract: Conductive molding compositions comprise a vinyl chloride-vinyl ether copolymer that contains as comonomer a vinyl ether having the structural formulaCH.sub.2 .dbd.CHORwherein R represents an alkyl, haloalkyl, aryl, or haloaryl radical having 1 to 18 carbon atoms, conductive carbon black particles, a stabilizer component, a lubricant component, and a plasticizer and processing aid component.
    Type: Grant
    Filed: September 2, 1981
    Date of Patent: June 28, 1983
    Assignee: Tenneco Chemicals, Inc.
    Inventors: Marvin Koral, Donald Goodman
  • Patent number: 4389340
    Abstract: A flexible, electrically conductive jointing material consists of an elastomer containing metal in a divided state distributed in its mass. The metal is in the form of laminae or paillettes of aluminium or of aluminium alloy, the length of which is greater than their width or thickness. The elastomer, which may be the product known under the name "Thiokol", exhibits a pasty consistency when applied enabling it to be spread with a spatula and mixed in situ. The jointing material may be used for connecting together the structural parts of aircraft.
    Type: Grant
    Filed: August 6, 1980
    Date of Patent: June 21, 1983
    Assignee: Avions Marcel Dassault-Breguet Aviation
    Inventor: Fernand J. Levy
  • Patent number: 4387046
    Abstract: An electrically conductive composition containing a cross-linked organopolysiloxane and an electrically conductive lamp black in which the electrically conductive lamp black comprises from 15 to 60 percent by weight based on the weight of the organopolysiloxane of furnace black having a surface area of from 40 to 100 m.sup.2 /g and from 5 to 25 percent by weight of acetylene black based on the weight of the organopolysiloxane.
    Type: Grant
    Filed: April 6, 1979
    Date of Patent: June 7, 1983
    Assignee: Wacker-Chemie
    Inventors: Wilhelm Marsch, Dietrich Wolfer
  • Patent number: 4386020
    Abstract: The present invention provides a process for the production of solid ion ductor materials (electrolytes) based on lithium or sodium compounds which stand in thermodynamic equilibrium with their alkali metal and have a high decomposition voltage, wherein two or more binary lithium or sodium compounds with an anion which is formed from one or more elements of the group consisting of nitrogen, phosphorus, arsenic, oxygen, sulphur, selenium, tellurium, hydrogen, fluorine, chlorine, bromine and iodine and which stand in thermodynamic equilibrium with their alkali metal are reacted together in such amounts and for such a period of time that a radiographically phase-pure product is formed.The present invention also provides ion conductor materials based on lithium or sodium compounds, which have the general formula:A.sub.3u+2v+w X.sub.u Y.sub.v Z.sub.
    Type: Grant
    Filed: May 1, 1980
    Date of Patent: May 31, 1983
    Assignee: Max Planck Gesellschaft zur Forderung der Wissenschaften E.V.
    Inventors: Peter Hartwig, Werner Weppner, Winfried Wichelhaus
  • Patent number: 4386019
    Abstract: A method of making an electrode for an electrochemical cell in which particulate electrode-active material is mixed with a liquid organic carrier chemically inert with respect to the electrode-active material, mixing the liquid carrier to form an extrudable slurry. The liquid carrier is present in an amount of from about 10 to about 50 percent by volume of the slurry, and then the carrier is removed from the slurry leaving the electrode-active material.
    Type: Grant
    Filed: July 29, 1981
    Date of Patent: May 31, 1983
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Thomas D. Kaun, Dennis J. Kilsdonk
  • Patent number: RE31411
    Abstract: A radiation curable ink is provided which is convertible to a conductive coating when cured on the surface of a substrate. A particulated electrically conductive .[.metal containing.]. material is used in combination with an organic resin binder. Low temperature cure of the ink can be achieved with either actinic or ionizing radiation.
    Type: Grant
    Filed: June 7, 1978
    Date of Patent: October 11, 1983
    Assignee: General Electric Company
    Inventors: Donald A. Bolon, Gary M. Lucas, Ralph L. Bartholomew