Titanium Or Zirconium Compound Patents (Class 252/507)
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Patent number: 7682527Abstract: A nanoparticle coated with a semiconducting material and a method for making the same. In one embodiment, the method comprises making a semiconductor coated nanoparticle comprising a layer of at least one semiconducting material covering at least a portion of at least one surface of a nanoparticle, comprising: (A) dispersing the nanoparticle under suitable conditions to provide a dispersed nanoparticle; and (B) depositing at least one semiconducting material under suitable conditions onto at least one surface of the dispersed nanoparticle to produce the semiconductor coated nanoparticle. In other embodiments, the nanoparticle comprises a fullerene. Further embodiments include the semiconducting material comprising CdS or CdSe.Type: GrantFiled: August 6, 2007Date of Patent: March 23, 2010Assignee: William Marsh Rice UniversityInventors: Andrew R. Barron, Dennis J. Flood, John Ryan Loscutova
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Publication number: 20100062339Abstract: Described are cathode materials for lithium batteries. Better cathode materials may be produced by mixing at least two compounds and a binder additive. The first compound includes one or more salts of lithium metal phosphorous while the second compound includes one or more lithium transition metal oxides. In other instances, a conductive additive may also be incorporated. The cathode materials so produced exhibit enhanced electrical properties and thermal stability.Type: ApplicationFiled: March 21, 2008Publication date: March 11, 2010Applicant: BYD COMPANY LIMITEDInventors: Fuzhong Pan, Xi Shen, Caimin Wan, Shengping You
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Publication number: 20090321687Abstract: Disclosed herein are an electrically conductive thermoplastic resin composition and a plastic article including the same. The electrically conductive thermoplastic resin composition comprises about 80 to about 99.9 parts by weight of a thermoplastic resin, about 0.1 to about 10 parts by weight of carbon nanotubes, about 0.1 to about 10 parts by weight of an impact modifier, based on a total of about 100 parts by weight of the thermoplastic resin and the carbon nanotubes, and about to about 10 parts by weight of conductive metal oxide, based on a total of about 100 parts by weight of the thermoplastic resin and the carbon nanotubes.Type: ApplicationFiled: June 22, 2009Publication date: December 31, 2009Applicant: CHEIL INDUSTRIES INC.Inventors: Tae Kyun KIM, Young Sil LEE, Young Kyu CHANG
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Patent number: 7628937Abstract: The present invention relates to processes for making anodes suitable for use in the production of titanium metals. The processes use a kneaded mixture of TiO2 particles, carbon particles, a binder, and a solvent. The mixture is extruded and the solvent is allowed to evaporate to form a green body which is subsequently fired. During firing of the green body, the carbon particles aid in reducing the titanium dioxide to a lower oxide or oxycarbide which can be electrochemically processed into titanium metal.Type: GrantFiled: December 17, 2007Date of Patent: December 8, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Eugene Michael McCarron, Dennis A. Redder, Paul Douglas VerNooy
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Publication number: 20090293953Abstract: An electrolyte composition containing an ionic liquid and conductive particles, an electrolyte composition containing an ionic liquid and oxide semiconductor particles and optionally containing conductive particles, and an electrolyte composition containing an ionic liquid and insulating particles are provided. Furthermore, a photoelectric conversion element comprising: a working electrode, the working electrode comprising an electrode substrate and an oxide semiconductor porous film formed on the electrode substrate and sensitized with a dye; a counter electrode disposed opposing the working electrode; and an electrolyte layer made of these electrolyte compositions is provided.Type: ApplicationFiled: June 16, 2009Publication date: December 3, 2009Applicant: Fujikura Ltd.Inventors: Hiroki USUI, Nobuo TANABE, Hiroshi MATSUI, Tetsuya EZURE, Shozo YANAGIDA
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Patent number: 7622667Abstract: Photovoltaic materials and methods of photovoltaic cell fabrication provide a photovoltaic cell in the form of a fiber. These fibers may be formed into a flexible fabric or textile.Type: GrantFiled: March 22, 2005Date of Patent: November 24, 2009Assignee: Konarka Technologies, Inc.Inventors: Kethinni Chittibabu, Robert Eckert, Russell Gaudiana, Lian Li, Alan Montello, Edmund Montello, Paul Wormser
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Publication number: 20090286159Abstract: The present invention relates to a positive electrode for a rechargeable lithium ion battery comprised of single particles containing a compound of the formula LiMPCU, whereby M is a metal selected from the group consisting of Co, Ni, Mn, Fe, Ti or combinations thereof, and whereby in a X-Ray diffraction chart of the electrode the ratio of the intensity I1:I2 of two selected peaks (1) and (2) is larger than (9:1) and wherein I1 represents essentially the intensity of peak (1) assigned to the (020) plane and I2 represents the intensity of peak (2) assigned to the (301) plane. The invention relates further to a process for the manufacture of such a positive electrode and to a battery comprising such an electrode.Type: ApplicationFiled: May 11, 2006Publication date: November 19, 2009Inventors: Gerhard Nuspl, Christian Vogler, Denis Yu, Kazunori Donoue, Takao Inoue, Christopher Fietzek, Wolfgang Weydanz
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Patent number: 7612006Abstract: To provide a sintered silicon nitride with conductivity and densification, an oxide of titanium group elements, such as titanium oxide, hafnium oxide, zirconium oxide and the like, aluminum oxide and/or aluminum nitride is added as needed to silicon nitride-oxidant of rare-earth elements-aluminum oxide system or silicon nitride-oxide of rare-earth elements-magnesia system, and then specified quantity of carbon nonotube (CNT) is added to the above mixture. CNT generates silicon carbide after the reaction with contiguous or proximal silicon nitride and the like depending on the sintering duration at high temperature. Since silicon carbide is generated along with nanotubes, the silicon carbide functions as conductor with excellent heat resistance, corrosion resistance and the like.Type: GrantFiled: September 27, 2005Date of Patent: November 3, 2009Assignee: Yokohama TLO Company, Ltd.Inventors: Katsutoshi Komeya, Junichi Tatami, Takeshi Meguro, Tomofumi Katashima, Toru Wakihara
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Publication number: 20090246602Abstract: There are provided fine particle-carrying carbon particles, which can be used as a substitute for the existing platinum-carrying carbon particles or platinum metal particles commonly used in electrocatalysts for fuel cells or the like, and which are significantly reduced in the amount of platinum to be used in comparison with the existing platinum-carrying carbon particles, and an electrode for a fuel cell using the same carbon particles. The fine particle-carrying carbon particle comprises a carbon particle with an average particle diameter of from 20 to 70 nm, and fine particles of a metal oxide with an average crystallite size of from 1 to 20 nm, carried on the carbon particle, wherein the metal oxide contains a noble metal element such as a platinum element, and is represented by the formula: MOx in which the metal element M is partially substituted by the noble metal element.Type: ApplicationFiled: September 25, 2006Publication date: October 1, 2009Inventors: Yuko Sawaki, Yoshinori Sato, Mikio Kishimoto, Haruyuki Nakanishi, Masahiro Imanishi
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Publication number: 20090206067Abstract: Uniform heating with low voltage electrical power supply is provided by sheet form products as free standing films, coatings, or embedded in laminates, foams and the like and comprising a carbon black/graphite composite dispersed in a plastic carrier.Type: ApplicationFiled: November 26, 2008Publication date: August 20, 2009Applicant: Andover PolymersInventor: Stephen W. Foss
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Publication number: 20090152507Abstract: The present invention relates to processes for making anodes suitable for use in the production of titanium metals. The processes use a kneaded mixture of TiO2 particles, carbon particles, a binder, and a solvent. The mixture is extruded and the solvent is allowed to evaporate to form a green body which is subsequently fired. During firing of the green body, the carbon particles aid in reducing the titanium dioxide to a lower oxide or oxycarbide which can be electrochemically processed into titanium metal.Type: ApplicationFiled: December 17, 2007Publication date: June 18, 2009Applicant: E.I. du Pont de Nemours and CompanyInventors: Eugene Michael McCarron, Dennis A. Redder, Paul Douglas VerNooy
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Publication number: 20090134361Abstract: A chip-shaped electronic component comprising a substrate and an end face electrode layer provided on an end face of the substrate, in which the end face electrode layer contains a mixed material including, as a conductive particle, a carbon powder, a whisker-like inorganic filler coated with a conductive film, and a flake-like conductive powder, and an epoxy resin having a weight-average molecular weight between 1,000 and 80,000.Type: ApplicationFiled: August 28, 2006Publication date: May 28, 2009Inventors: Naohiro Takashima, Shoji Hoshitoku, Takasi Oobayasi, Mituru Harada
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Publication number: 20090110627Abstract: An economical method of preparing a large-sized graphene sheet having a desired thickness includes forming a film, the film comprising a graphitizing catalyst; heat-treating a gaseous carbon source in the presence of the graphitizing catalyst to form graphene; and cooling the graphene to form a graphene sheet. A graphene sheet prepared according to the disclosed method is also described.Type: ApplicationFiled: July 8, 2008Publication date: April 30, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae-young CHOI, Hyeon-Jin SHIN, Seon-mi YOON
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Patent number: 7524529Abstract: A method for preparing a LixMyPO4 compound having an olivine structure includes: preparing a solution containing transition metal M ions, Li+ ions and PO43? ions; drying the solution to form particles of a starting material; and forming the particles of the starting material into particles of the LixMyPO4 compound with an olivine structure, in which 0.8?x?1.2 and 0.8?y?1.2, and coating the particles of the LixMyPO4 compound with a carbon layer thereon.Type: GrantFiled: May 2, 2007Date of Patent: April 28, 2009Assignee: Aquire Energy Co., Ltd.Inventor: Chih-Wei Yang
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Patent number: 7491347Abstract: A Ti-precursor for forming a Ti-containing thin layer represented by the formula I below, a method of preparing the same, a method of preparing a Ti-containing thin layer by employing the Ti-precursor and the Ti-containing thin layer are provided: wherein X1 and X2 are independently F, Cl, Br or I; n is 0, 1, 2, 3, 4 or 5; m is 0, 1, 2, 3, 4, 5, 6 or 7; and R1 and R2 are independently a linear or branched C1-10 alkyl group. The Ti precursor for forming the Ti-containing thin layer can be deposited at a deposition temperature of approximately 150° C.˜200° C., and a Ti-containing thin layer with a high performance character can be prepared.Type: GrantFiled: November 21, 2005Date of Patent: February 17, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-ho Park, Jung-hyun Lee
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Publication number: 20090035555Abstract: This invention is directed to an article comprising a transparent substrate and an electrically conductive transparent coating deposited on the transparent substrate. This invention is also directed to methods for preparing the electrically conductive transparent coating and depositing the coating on the transparent substrate. This invention is further directed to devices containing such articles. The electrically conductive transparent coating comprises carbon nanotubes filled, coated, or both filled and coated by a non-carbon material.Type: ApplicationFiled: July 29, 2008Publication date: February 5, 2009Inventors: Sean Imtiaz Brahim, Robert L. Gump, Steven G. Colbern, Leonid Grigorian
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Publication number: 20080319518Abstract: Provided are a charged particle generator that continually generates large quantities of charged particles as a result of temperature dependent excitation, functional fibers comprising composite carbon particles, having SP3 and SP2 structures, and a healthcare device that can increase the effect of penetration of the human body by charged particles without limit in time, and which can produce a synergistic effect with infrared radiation. The charged particle generator comprises semiconductor particles and a coupling agent, blended at a ratio that results in a percolation effect, and is disposed at a human body contact face of the healthcare device, so as to achieve a body temperature elevating effect and blood circulation improving effect. The functional fibers can be used in processed or formed products for improved effects in the heating range produced by the human body, as well as in combination with a magnet, for a further synergistic effect.Type: ApplicationFiled: September 10, 2007Publication date: December 25, 2008Applicant: NAC CO., LTD.Inventor: Masakazu Komuro
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Patent number: 7462271Abstract: A method is described for making aluminum reduction cell components, e.g. cathodes having stabilized surfaces, which comprises mixing together a carbonaceous material, TiB2 and up to 25% by weight of a finely divided additive consisting of a combination of two intimately mixed compounds and forming the mixture into a cell component, wherein at least a first of the two compounds has a higher melting temperature than the baking temperature. When the cell component is contacted with molten aluminum, the aluminum reacts with the additive to form a dense phase at the surface of the cell component, having low solubility in aluminum.Type: GrantFiled: November 26, 2003Date of Patent: December 9, 2008Assignee: Alcan International LimitedInventors: Martin Dionne, Jules Bergeron, Amir A. Mirchi
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Patent number: 7438837Abstract: A method of producing a solid electrolyte (3, 13) is disclosed wherein solid electrolyte material is prepared having a composition expressed by a formula: (1-x) ZrO2 {xSc2O3 (where x is a number equal to or greater than 0.05 and equal to or less than 0.15), and a spark plasma method is carried out to sinter solid electrolyte material, resulting in a solid electrolyte. Such spark plasma method is executed by applying first compression load, equal to or less that 40 MPa, to solid electrolyte material, to sinter the solid electrolyte material to obtain sintered material, which is then cooled by applying second compression load, less than first compression load, to the sintered material, resulting in a solid electrolyte.Type: GrantFiled: March 19, 2004Date of Patent: October 21, 2008Assignees: Nissan Motor Co., Ltd., National Institute of Advanced Industrial Science and TechnologyInventors: Masaharu Hatano, Mitsugu Yamanaka, Makoto Uchiyama, Kenji Furuya, Yoshio Akimune, Masaya Okamoto
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Publication number: 20080131777Abstract: A positive electrode material is disclosed which contains an iron lithium phosphate as a positive electrode active material and has a large charge/discharge capacity, high-rate adaptability, and good charge/discharge cycle characteristics at the same time. Also disclosed are a simple method for producing such a positive electrode material and a high-performance secondary battery employing such a positive electrode material. Specifically, disclosed is a positive electrode material for secondary battery characterized by mainly containing a positive electrode active material represented by the general formula: LinFePO4 (wherein n is a number of 0-1) and further containing at least one different metal element selected from the group consisting of vanadium (V), chromium (Cr), copper (Cu), zinc (Zn), indium (In) and tin (Sn). This positive electrode material can be produced using a halide of such a metal element as the raw material.Type: ApplicationFiled: October 26, 2004Publication date: June 5, 2008Inventors: Naoki Hatta, Toshikazu Inaba, Izumi Uchiyama
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Publication number: 20080048154Abstract: The invention relates to a method for producing carbon or HV graphite electrodes, in which a carbon carrier is mixed with a hydrocarbon-containing binder, and the mixture is subjected to a coking process and/or graphitization process, and one or more synthetic titanium compounds are additionally added to the raw materials. The titanium compound is preferably comprised of TiO2. Iron oxide can be added as an accompanying substance.Type: ApplicationFiled: September 16, 2004Publication date: February 28, 2008Inventors: Djamschid Amirzadeh-Asl, Dieter Funders
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Patent number: 7141184Abstract: A resistive composition for screen printing onto a substrate to form a cured film. The resistive composition, based on total composition, has a) 5–30 wt. % of polymer resin, b) 10–30 wt. % conductive particles selected from the group consisting of carbon black, graphite and mixtures thereof and c) 0.1–10 wt. % zirconia particles, wherein all of (a), (b), and (c) are dispersed in a 60–80 wt. % organic solvent. A cured resistive film composition is also disclosed.Type: GrantFiled: December 8, 2003Date of Patent: November 28, 2006Assignee: CTS CorporationInventor: Antony P. Chacko
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Patent number: 6913713Abstract: Photovoltaic materials and methods of photovoltaic cell fabrication provide a photovoltaic cell in the form of a fiber. These fibers may be formed into a flexible fabric or textile.Type: GrantFiled: January 24, 2003Date of Patent: July 5, 2005Assignee: Konarka Technologies, Inc.Inventors: Kethinni Chittibabu, Robert Eckert, Russell Gaudiana, Lian Li, Alan Montello, Edmund Montello, Paul Wormser
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Patent number: 6858163Abstract: Disclosed is an electron emission source composition for a flat panel display using the same, comprising carbon nanotubes, a vehicle, and an organotitanium or an organometallic compound, and a method of producing the electron emission source composition having improved adherent strength with the substrate and providing stable and uniform electron emitting characteristics.Type: GrantFiled: June 26, 2002Date of Patent: February 22, 2005Assignee: Samsung SDI Co., Ltd.Inventor: Jong-Woon Moon
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Patent number: 6821919Abstract: A nanocomposite having titanium aluminum carbon nitride and amorphous carbon is disclosed, and the nanocomposite comprises a titanium aluminum carbon nitride grain of nanometer scale and an amorphous carbon matrix, wherein the titanium aluminum carbon nitride grain of nanometer scale is embedded into the amorphous carbon matrix. The method for coating the nanocomposite of titanium aluminum carbon nitride-amorphous carbon on a substrate comprises: depositing the substrate in a reaction chamber; and igniting plasma to clean and remove an oxide layer and adsorptive on the substrate; injecting a reaction gas. The reaction gas is activated and thermal decomposed by plasma to form the nanocomposite coating layer of titanium aluminum carbon nitride-amorphous carbon on the surface of the substrate.Type: GrantFiled: November 27, 2002Date of Patent: November 23, 2004Assignee: National Cheng Kung UniversityInventors: Ming-Hsiung Hon, Jiann Shieh
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Patent number: 6814890Abstract: A process for preparing a mixed solvent adhesive solution involving mixing an alcohol and an adhesive to form an adhesive solution; mixing a charge transporting molecule and a solvent other than alcohol to form a charge transport solution; mixing the charge transport solution with the adhesive solution to form a mixed solvent solution; mixing an electrically conductive filler and a solvent to form a filled solvent solution; and mixing the filled solvent solution to the mixed solvent solution so as to form a mixed solvent adhesive solution.Type: GrantFiled: July 3, 2001Date of Patent: November 9, 2004Assignee: Xerox CorporationInventors: Ihor W. Tamawskyj, Xiaoying Yuan, Raymond K. Crandall
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Patent number: 6793850Abstract: An alkali development type photocurable composition comprises (A) an alkali-soluble macromolecular binder having a weight-average molecular weight in the range of 5,000 to 100,000 and an acid value in the range of 50 to 150 mg KOH/g and obtained by causing (d) a compound possessing one glycidyl group in its molecule to react with a carboxyl group of (A-1) a copolymer of (a) an ethylenically unsaturated bond-containing compound possessing one carboxyl group in its molecule with (b) an ethylenically unsaturated bond-containing compound possessing neither hydroxyl group nor acidic group in its molecule, or a carboxyl group of (A-2) a copolymer of the compounds (a) and (b) mentioned above and (c) an ethylenically unsaturated bond-containing compound possessing a hydroxyl group and then causing (e) a polybasic acid anhydride to react with a hydroxyl group caused by the above reaction, (B) an inorganic powder, (C) a photopolymerizable monomer, (D) a photopolymerization initiator, and (E) an organic solvent.Type: GrantFiled: January 11, 2002Date of Patent: September 21, 2004Assignee: Taiyo Ink Manufacturing Co., Ltd.Inventors: Kyo Ichikawa, Kouichi Takagi, Nobuyuki Suzuki
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Patent number: 6673272Abstract: A laminated ceramic electronic component, for example, monolithic ceramic capacitor, in which the delamination does not occur during baking and having superior thermal shock and moisture load resistance characteristics is provided. A conductive paste, used with advantage to form an internal electrode of the laminated ceramic electronic component, and a laminated ceramic electronic component using the conductive paste is provided. The conductive paste is composed of a conductive powder which is primarily Ni, an organic vehicle, a compound A containing at least one of Mg and Ca and which is an organic acid metal salt, oxide powder, metal organic complex salt and/or an alkoxide, and a compound B, having a hydrolyzable reactive group containing at least one of Ti and Zr, which adheres to the surface of the conductive powder.Type: GrantFiled: July 5, 2001Date of Patent: January 6, 2004Assignee: Murata Manufacturing Co., Ltd.Inventors: Takaharu Miyazaki, Tsuyoshi Yamana
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Patent number: 6589448Abstract: A ceramic bearing ball in which at least a portion of a constituent ceramic is formed of an electrically conductive inorganic compound phase, whereby a proper electrical conductivity is imparted to the ceramic. Thus, electrifying of a bearing ball is prevented or effectively suppressed. This prevents the problem involved in production of balls of small diameter wherein such balls adhere to an apparatus (e.g., a container) during production thereof, thus hindering smooth progress of the production process. In addition, when ceramic balls are used in precision electronic equipment, such as a hard disk drive of a computer, which is operated at high rotational speed, adhesion of foreign substance due to electrification of the balls, and resultant generation of abnormal noise or vibration can be prevented or effectively suppressed.Type: GrantFiled: April 10, 2001Date of Patent: July 8, 2003Assignee: NGK Spark Plug Co., Ltd.Inventors: Tomonori Niwa, Tetsuji Yogo
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Publication number: 20030010960Abstract: The polymer compound contains a polymer matrix and a filler embedded in the matrix. The filler comprises two filler components with nonlinear current-voltage characteristics deviating from one another. By selection of suitable amounts of these filler components, a polymer compound with a predetermined nonlinear current-voltage characteristic deviating from these two characteristics can be formed in this way.Type: ApplicationFiled: June 27, 2002Publication date: January 16, 2003Inventors: Felix Greuter, Yvo Dirix, Petra Kluge-Weiss, Walter Schmidt, Reto Kessler
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Publication number: 20020179889Abstract: There is disclosed a composition which is layered on a reflective board to constitute a radio wave absorber. In this composition, an electroconductive titanium oxide is compounded with a substrate. With regard to the substrate, there may be used thermoplastic resin, thermosetting resin, rubber or elastomer.Type: ApplicationFiled: January 28, 2002Publication date: December 5, 2002Inventors: Osamu Hashimoto, Tetsu Soh, Masato Tadokoro
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Patent number: 6458859Abstract: By blending acicular conductive titanium oxide and an antistatic agent having a metal ion-containing moiety in an organopolysiloxane having at least two aliphatic unsaturated groups, there is obtained a silicone rubber composition which is curable with an organic peroxide and/or an organohydrogenpolysiloxane/platinum group catalyst. The composition cures into silicone rubber having a stabilized resistivity in the semiconductive region, especially in the range of 1×103 to 1×1012 &OHgr;-cm, even under high voltages. The composition is thus suitable as a semiconductive roll material for use as charging rolls, transfer rolls and developing rolls.Type: GrantFiled: December 8, 2000Date of Patent: October 1, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Osamu Hayashida, Tsutomu Nakamura
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Patent number: 6426586Abstract: A contact glass composition for use in resistor-type spark plugs is described. The contact glass composition is a mixture of: (a) at least one metal; (b) graphite; and (c) silicon. Additionally, borosilicate glass, barium borate glass, magnesium aluminum silicate, ball clay, and aluminum may also be included in the contact glass composition.Type: GrantFiled: February 12, 1999Date of Patent: July 30, 2002Assignee: AlliedSignal Inc.Inventors: Ching T. Young, Philip R. Woodruff, Duane L. Schreiner, Harold E. Dunfee, Ralph Frederick, Jeff A. Goldacker
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Patent number: 6395082Abstract: In a coating material for the inner surface of a cathode-ray tube comprising an aqueous dispersion medium containing silicates of lithium and potassium and a dispersing agent, and a graphite particles and, if necessary, particles of the other specific metal compounds suspended therein, the invention is characterized in that the molar ratio of potassium to lithium is in the range of 1 to 9, and the molar ratio of silicon dioxide to the total quantity of oxides of lithium and potassium is in the range of 2.5 to 3.5, and the obtained coating material is most suitable for suppressing the quantities of gases released from the inner coating, for making good use of gas-adsorbing ability of graphite, and for increasing the degree of vacuum in the cathode-ray tube.Type: GrantFiled: April 26, 2001Date of Patent: May 28, 2002Assignee: Hitachi Powdered Metals Co., Ltd.Inventor: Hiroshi Shimbori
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Patent number: 6320317Abstract: A resistor seal composition useful in resistor spark plugs, comprises glass, at least one metal oxide, at least one filler material, and a branched or straight chained zirconium carboxylate. The glass comprises a strontium borate glass and/or a borosilicate glass. Metal oxides include aluminum oxide, zinc oxide, and zirconium oxide. Filler materials include silicon dioxide and mullite.Type: GrantFiled: December 1, 1999Date of Patent: November 20, 2001Assignee: Delphi Technologies, Inc.Inventors: Joseph Michael Keller, Richard Frederick Beckmeyer, William J. LaBarge
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Patent number: 6251307Abstract: The present invention relates to the use of petroleum coke for the manufacture of carbonaceous anodes for the aluminum smelting industry. The inclusion of Group 4 and/or Group 13 metal compounds as additives to the petroleum coker feedstock diminish the oxidizing tendencies of the metal impurities inherent in the petroleum coke.Type: GrantFiled: November 10, 1999Date of Patent: June 26, 2001Assignee: Mobil Oil CorporationInventors: Steven Matthew LeCours, Arthur Warren Chester, Gary Lester Smith
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Patent number: 6172453Abstract: The present invention provides an electrode for a ceramic electrode fluorescent discharge lamp; an electrode material for a discharge lamp, which has high electron flow density, high thermal shock resistance, and reduced deterioration due to sputtering; and also a method for manufacturing the same. The invention makes it possible to reduce the tube diameter of the ceramic electrode fluorescent discharge lamp. An electrode material for a discharge lamp is obtained from a first component of 0.5 to 1.5 mols of BaO, CaO or SrO, a second component of 0.05 to less than 0.3 mols or more than 0.7 to 0.95 mols of ZrO2 or TiO2, and a third component of 0.025 to less than 0.3 mols of V2O5, Nb2O5, Ta2O5, Sc2O3, Y2O3, La2O3, Dy2O3, or Ho2O3, or 0.05 to less than 0.15 mols or more than 0.35 to 0.95 mols of HfO2, CrO3, MoO3 or WO3. This electrode material is granulated and is turned into a massive, granular, or porous electrode material.Type: GrantFiled: November 17, 1994Date of Patent: January 9, 2001Assignee: TDK CorporationInventors: Munemitsu Hamada, Masaru Fukuda, Haruo Taguchi, Shoichi Iwaya, Hiroaki Abe
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Patent number: 6086790Abstract: The present invention discloses a double-layer structured low-resistance and low-reflectivity transparent conductive film, comprising a lower high-reflectivity conductive layer containing a fine metal powder in a silica-based matrix and a silica-based low-reflectivity layer, suitable for imparting electromagnetic shielding property and anti-dazzling property to a CRT.Type: GrantFiled: June 17, 1998Date of Patent: July 11, 2000Assignee: Mitsubishi Materials CorporationInventors: Toshiharu Hayashi, Tomoko Oka, Daisuke Shibuta
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Patent number: 5997772Abstract: A flexible conductive coating for application to an elastomeric charging blade pressed against the developer roller in an electrostatic printing apparatus to improve the contact of the particulate toner with the developer roller. The coating serves to improve the uniformity in the charge distribution of the different sized toner particles in the toner, to improve the repeatability of image density and decrease ghosting caused by the developer roller. The coating formulation comprises an aqueous or solvent based elastomeric material containing a conductive material disposed in its body to create conductivity. The coating may be directly applied to the operative surface of the charging blade, incorporated into the body of the blade during manufacture, or applied to the operative surface of the blade using an adhesive strip.Type: GrantFiled: November 18, 1997Date of Patent: December 7, 1999Assignee: Lester CorneliusInventors: Lester Cornelius, Robert Kacinsky
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Patent number: 5961811Abstract: Disclosed is an improved carbonaceous material suitable for use as a cathode in an aluminum producing electrolytic cell, the cell using an electrolyte comprised of sodium containing compounds. The carbonaceous material is comprised of carbon and a reactive compound capable of suppressing the formation or accumulation of sodium cyanide during operation of the cell, of reacting with sodium to reduce problems associated with sodium intercalation, and of reacting with one of titanium or zirconium to form titanium or zirconium diboride during operation of the cell to produce aluminum.Type: GrantFiled: October 2, 1997Date of Patent: October 5, 1999Assignee: EMEC ConsultantsInventor: Rudolf Keller
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Patent number: 5908585Abstract: A transparent electrically conductive film having a surface resistivity of 10.sup.2 -10.sup.10 .OMEGA./.sup..quadrature., an overall light transmittance of at least 70%, and a haze value of at most 20% comprises an organic or inorganic transparent matrix having dispersed therein 0.01%-1 wt % of hollow carbon microfibers and 1%-40 wt % of an electrically conductive metal oxide powder (such as antimony-doped tin oxide) with an average primary particle diameter of 0.5 .mu.m or smaller. The matrix can be an organic polymer which is thermoplastic, thermosetting, or curable by ultraviolet radiation, or a metal oxide sol which can form an inorganic glass film, a hydrolyzable or heat decomposable organic metal compound, or the like.Type: GrantFiled: April 23, 1998Date of Patent: June 1, 1999Assignees: Mitsubishi Materials Corporation, Hyperion Catalysis International, Inc.Inventor: Daisuke Shibuta
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Patent number: 5855818Abstract: An electrically conductive elastomeric foam is presented. Preferably, the elastomeric foam comprises polyurethane foam and in accordance with an important feature of this invention, the elastomeric foam is rendered electrically conductive by incorporating therein electrically conductive fibers. As used herein, a "fiber" has a diameter greater than or equal to one micron, and an aspect ratio (length/diameter) greater than or equal to fifteen. In accordance with the method of the present invention, the elastomeric foam is prepared from a polyurethane stock comprised of a polyhydroxyl compound, an organic polyisocyanate compound, a catalyst, a foam stabilizer and an amount of electrically conductive fiber which is effective to render the elastomeric foam electrically conductive.Type: GrantFiled: September 1, 1995Date of Patent: January 5, 1999Assignee: Rogers CorporationInventors: Poh Poh Gan, Michael Bessette
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Patent number: 5676807Abstract: An electrolytic cell for electrolysis of alumina for the production of aluminum, comprising at least two cell components joined by a ramming paste consisting essentially of a compact mixture of one or more particulate carbonaceous material(s) with a non-carbonaceous non-polluting colloidal binder and optionally with one or more non-carbonaceous fillers, the binder being a suspension of one or more colloids, or being derived from one or more colloid precursors or colloid reagents optionally with one or more chelating agents.Type: GrantFiled: April 10, 1996Date of Patent: October 14, 1997Assignee: Moltech Invent S.A.Inventors: Vittorio de Nora, Jainagesh A. Sekhar
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Patent number: 5645752Abstract: A magnetorheological material containing a carrier fluid, a particle component and a thixotropic additive to provide stability against particle settling. The thixotropic additive can be a hydrogen-bonding thixotropic agent, a polymer-modified metal oxide, or a mixture thereof. The utilization of a thixotropic additive creates a thixotropic network which is unusually effective at minimizing particle settling in a magnetorheological material.Type: GrantFiled: December 20, 1995Date of Patent: July 8, 1997Assignee: Lord CorporationInventors: Keith D. Weiss, Donald A. Nixon, J. David Carlson, Anthony J. Margida
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Patent number: 5643721Abstract: The present invention provides an immobilization medium which can immobilize bioreagents to support materials and which dries to a water resistant layer or film. The immobilization medium comprises (i) a liquid or fluid binding reagent and (ii) complexes of a bioreagent immobilized to a solid phase which are evenly dispersed within the binding reagent. The suspension can further include supplemental ingredients evenly dispersed throughout the medium which can provide the medium with electrochemical properties, enhance the stability of the immobilized bioreagent and/or improve the medium's capability of drying to a substantially water resistant or insoluble layer. The immobilization medium provided by the instant invention is in the form of a homogeneous liquid suspension.Type: GrantFiled: February 9, 1994Date of Patent: July 1, 1997Assignee: Abbott LaboratoriesInventors: Thomas G. Spring, John M. Brackett, Sheila A. Vogdes, Steven G. Schultz
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Patent number: 5575953Abstract: In a coating composition for the inner wall of a cathode-ray tube comprising an aqueous dispersion medium containing potassium silicate, a dispersing agent and graphite particles or a combination of graphite particles and metal oxide particles or metal carbide particles suspended therein, the invention is characterized in that the molar ratio of silicon dioxide to potassium oxide (SiO.sub.2 /K.sub.2 O) in said potassium silicate is in the range of from 4 to 5, and the obtained coating film is characterized in that the adsorption quantity of moisture and gases is small and adhesiveness is excellent.Type: GrantFiled: April 4, 1995Date of Patent: November 19, 1996Assignee: Hitachi Powdered Metals Co., Ltd.Inventors: Shinichi Tachizono, Hironobu Chiyoda
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Patent number: 5571855Abstract: Improved methods and polymer compositions are provided whereby ultraviolet radiation degradation of substrates formed of the compositions is attenuated.In accordance with the invention, ultraviolet scattering and absorbing particles having a particle size in the range of from about 0.001 micrometer to about 0.20 micrometer in diameter are dispersed in at least a surface layer of a polymer substrate.Type: GrantFiled: May 26, 1995Date of Patent: November 5, 1996Assignee: Kerr-McGee CorporationInventors: Bruce R. Palmer, James W. Kauffman, Penelope Stamatakis
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Patent number: 5529719Abstract: A process for the preparation of polymer which comprises effecting a bulk polymerization of a mixture containing at least one monomer, a chain transfer agent, a crosslinking agent, a free radical redox polymerization initiator pair, and at least one additional free radical initiator until from about 4 to about 50 weight percent of the monomer has been polymerized and one or both components in the redox initiator pair has been consumed; dispersing with a high shear mixer the aforementioned partially polymerized mixture in water containing a stabilizing component selected from the group consisting of nonionic and ionic water soluble polymeric stabilizers to obtain a suspension of particles; polymerizing the resulting suspension; and optionally subsequently insulating, washing and drying the polymer product.Type: GrantFiled: March 27, 1995Date of Patent: June 25, 1996Assignee: Xerox CorporationInventors: Michael F. Cunningham, Thomas E. Enright, Hadi K. Mahabadi
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Patent number: 5510823Abstract: A resistive element film-forming paste includes (1) an organic metal compound, (2) at least one organic non-metal additive, and (3) a solution of asphalt in a solvent. A resistive element is formed by coating the paste on a substrate followed by calcining.Type: GrantFiled: February 26, 1992Date of Patent: April 23, 1996Assignee: Fuji Xerox Co., Ltd.Inventors: Hiroyuki Tanaka, Kaoru Torikoshi, Fumiaki Tambo, Katsuhiro Sato, Yutaka Akasaki
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Patent number: 5504134Abstract: Improved methods and polymer compositions are provided whereby ultraviolet radiation degradation of substrates formed of the compositions is attenuated. In accordance with the invention, ultraviolet scattering and absorbing particles having a particle size in the range of from about 0.001 micrometer to about 0.20 micrometer in diameter are dispersed in at least a surface layer of a polymer substrate.Type: GrantFiled: February 14, 1994Date of Patent: April 2, 1996Assignee: Kerr-McGee Chemical CorporationInventors: Bruce R. Palmer, James W. Kauffman, Penelope Stamatakis