Patents Examined by Christopher Paulraj
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Patent number: 6406784Abstract: A wear resistant composite member such as a fuser roll or a pressure roll and a fuser system using the same. The fuser roll and/or the pressure roll comprises a core, a first layer, an optional second layer, and a surface layer wherein at least the first layer or optional second layer comprises a fluorocarbon polymer having ceramic-based particles substantially homogeneously distributed throughout the polymer and protruding from the surface of the polymer layer.Type: GrantFiled: July 12, 1999Date of Patent: June 18, 2002Assignee: Xerox CorporationInventor: Ken Michael Cerrah
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Patent number: 6403219Abstract: The invention relates to a composite solid particle obtained by sticking fine particles on the surface of a core particle by applying impact and then allowing a crystal of a fine particle component to grow on the fine particle-core particle composite with the stuck fine particles described above being used as crystal nuclei and to a production process for the same.Type: GrantFiled: May 1, 2000Date of Patent: June 11, 2002Assignee: Nara Machinery Co., Ltd.Inventor: Jiefan Liao
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Patent number: 6403213Abstract: The invention relates to a composition applicable as a undercoat for a non-stick coating on a substrate, comprising (a) inorganic filler of ceramic particles, the particles having an average particle size of 1 micrometer or less and an aspect ratio of not greater than 2.5, (b) adhesion promoter wherein the weight proportion of inorganic filler to adhesion promoter is in the range of 5:1 to 1.7:1, and (c) from 0 to 25 wt. % of a fluoropolymer based on the weight of the composition of the undercoat layer after baking.Type: GrantFiled: May 8, 2000Date of Patent: June 11, 2002Assignee: E. I. du Pont de Nemours and CompanyInventor: Peter L. Huesmann
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Patent number: 6399178Abstract: An electronic device comprises one or more electronic components, including flip-chip semiconductor devices, chip resistors, capacitors and inductors and other components, electrically interconnected to an electronic substrate by solder bump interconnections and having a rigid adhesive underfill bonding between the electronic component and the substrate. The rigid adhesive underfill is a preform of an insulating thermoplastic and/or thermosetting resin, or a combination thereof, having a high modulus of elasticity and high glass transition temperature. Preferably, insulating adhesives having a higher melt-flow index are employed to facilitate formation of a void-free bond between the component and the substrate and of a fillet around the edges of the flip-chip or other component, thereby to provide a moisture barrier and additional mechanical strength.Type: GrantFiled: June 22, 1999Date of Patent: June 4, 2002Assignee: Amerasia International Technology, Inc.Inventor: Kevin Kwong-Tai Chung
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Patent number: 6395332Abstract: A process for producing fine copper powder characterized by comprising mixing fat and oil into a dendritic electrolytic copper powder having an average particle size of 20 to 35 &mgr;m and a bulk density of 0.5 to 0.8 g/cm3 to coat the surface of the electrolytic copper powder particles with the fat and oil and pulverizing the coated particles by means of a jet mill of collision plate type.Type: GrantFiled: April 28, 2000Date of Patent: May 28, 2002Assignee: Mitsui Mining and Smelting Company, Ltd.Inventors: Kenzo Hanawa, Kazuaki Takahashi
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Patent number: 6387528Abstract: The present invention provides a composition comprising an ion-trigger polymer coating joined to a water-sensitive substrate. When the composition is employed as a diaper outercover or a pantiliner baffle, for example, the ion-trigger coating is oriented toward the body and is exposed to bodily fluids. The coating inhibits the transport of the fluids to the inner, body-side water-sensitive substrate, maintaining the structural integrity of the composition. When the entire article is disposed of in a large volume of water, such as in the hydraulic flow of a toilet, both the water-sensitive substrate layer and the ion-trigger polymer coating layer mechanically weaken and break apart into small pieces.Type: GrantFiled: October 27, 1999Date of Patent: May 14, 2002Assignee: Kimberly-Clark Worldwide, Inc.Inventors: William S. Pomplun, John E. Kerins, Pavneet S. Mumick
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Patent number: 6387460Abstract: A glass panel including a pair of first and second glass sheets (1A, 1B) disposed with sheet faces thereof opposed to each other, a plurality of spacers (5) being interposed between the pair of glass sheets (1A, 1B) for forming a space (4) therebetween; and a sealing material (S) for bonding peripheral edges (3) of the glass sheets (1A, 1B) together for sealing the space (4), the sealing material having a lower fusing temperature than the softening point of the glass sheets (1A, 1B). Each spacer (5) is formed by disposing spacer-forming paste (11) in a predetermined shape on the sheet face of the glass sheet (1A, 1B). Or, the spacer (5) comprises a plurality of spacer bodies (51) two-dimensionally interconnected to each other via a connecting member (52).Type: GrantFiled: April 3, 2000Date of Patent: May 14, 2002Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Kyoichi Shukuri, Hideo Yoshizawa, Naoto Horiguchi, Osamu Asano, Keiichiro Okajima, Tomonori Miura, Masao Misonou, Seiichiro Honjo
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Patent number: 6387516Abstract: The present invention has it for its object to provide an interlayer film for laminated glass and a laminated glass which shows a much decreased extent of blushing of the peripheral region thereof even when placed in a high-humidity atmosphere, without compromise in those fundamental performance characteristics which are required of laminated glass, such as transparency, weather resistance, adhesion and penetration resistance. The present invention is related to an interlayer film for laminated glass comprising a plasticized poly(vinyl acetal) resin and having the haze after 24 hours of immersion is not more than 50% when said interlayer film with a thickness of 0.3 to 0.8 mm is immersed in water at 23° C.Type: GrantFiled: May 14, 1999Date of Patent: May 14, 2002Assignee: Sekisui Chemical Co., Ltd.Inventors: Tokushige Shichiri, Jiro Miyai, Akihiko Bando, Kiyofumi Toyama, Yoshio Aoshima, Isei Sannomiya, Minoru Nakajima
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Patent number: 6383603Abstract: A printed wiring board with an increased strength of solder is provided by preventing solder bridge formation and increasing the amount of solder adherent thereto. A land (1) serving as a soldering foundation is formed in a star-shape, to minimize the proximal peripheral length (L2) between adjacent lands spaced distance (L1) apart, thus reducing the possibility of solder bridge formation. Since the star-shaped land (1) has a greater area than a rhombic land of identical size, the amount of solder adherent thereto is greater than that of the rhombic land, thus enabling to increase the strength of solder.Type: GrantFiled: September 7, 1999Date of Patent: May 7, 2002Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Shinichi Nojioka
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Patent number: 6383644Abstract: The present invention provides a multilayer sheet comprising a polymeric film having on a first major side a cross-linked polyurethane layer, the major part of said cross-linked polyurethane layer comprising a polycarbonate based polyurethane containing acid groups and cross-linked with a cross-linker, the polycarbonate-based polyurethane comprising the reaction product of a polycarbonate polyol or a polycarbonate polyamine and an aliphatic polyisocyanate and the uncross-linked polycarbonate-based polyurethane having a Koenig hardness of at least 150 seconds.Type: GrantFiled: September 14, 1999Date of Patent: May 7, 2002Assignee: 3M Innovative Properties CompanyInventor: Iris Fuchs
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Patent number: 6379802Abstract: A thermoplastic skin sheet constituted by (a) a thermoplastic polyolefin or elastomer sheet; (b) a primer layer coated on the sheet, the primer being based on a modified polyolefin resin containing 2 mg-equivalent/g or less of a hydroxyl group or a carboxyl group; and (c) a topcoat layer coated on the primer layer. The topcoat layer may be mainly composed of (a) 100 parts by weight of a polycarbonate polyurethane resin having a number-average molecular weight of 8,000 or more and a 100% modulus of 20 kg/cm2 or more, and (b) 0.1-40 parts by weight of a (meth)acrylate-butadiene-styrene resin. The surface of the topcoat layer may be subjected to embossing.Type: GrantFiled: June 22, 1999Date of Patent: April 30, 2002Assignees: Honda Giken Kogyo Kabushiki Kaisha, Tokusho Shikiryo Color & Chemicals, Inc.Inventors: Sukekuni Ito, Keiichi Honjo, Masami Imada, Manabu Kudoh
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Patent number: 6365268Abstract: An insulation material useful in deep water well drilling applications includes an elastic polymer matrix, a plurality of rigid macro-beads within the elastic polymer matrix, an inelastic polymer matrix within the macro-beads, and a plurality of hollow, insulative micro-beads within the inelastic polymer matrix. The insulation material has adequate flexibility and elasticity to withstand thermal expansion and contraction, adequate compressive strength to withstand high water pressures, and good insulative properties at cold temperatures near the freezing point of water.Type: GrantFiled: June 5, 2000Date of Patent: April 2, 2002Assignee: FMC CorporationInventors: Michael R. Williams, Christopher E. Cunningham
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Patent number: 6361868Abstract: The present invention provides a coating composition which comprises at least one silicon compound (A) which has at least one radical which is bonded directly to Si, is not able to be separated hydrolytically and contains an epoxy group, a particulate material (B) which is selected from among oxides, oxide hydrates, nitrides and carbides of Si, Al and B and of transition metals and has a particle size within the range 1 to 100 nm, an Si, Ti, Zr, B, Sn or V compound (C) and at least one hydrolysable Ti, Zr or Al compound (D), which comprises the following ratio 1.0 mol of the silicon compound (A), 0.27 to 0.49 mol of the particulate material (B), 0.36 to 0.90 mol of the compound (C) and 0.14 to 0.22 mol of the compound (D).Type: GrantFiled: April 3, 2000Date of Patent: March 26, 2002Assignees: Bayer Aktiengesellschaft, Institut fur Neue Materilien gem GmbHInventors: Peter Bier, Herbert Krug, Stefan Sepeur, Sabine Stein
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Patent number: 6361851Abstract: A composite roofing shingle coated with weather resistant granules on its exposed surface which comprises (a) a top member having an upper undivided headlap section and a lower butt section comprising spaced tabs depending from said headlap and (b) a bottom backer member attached to the under surface and coterminal with the length of said headlap section, said backer member being exposable in the spaces between said tabs, said tabs carrying a horizontal band area of a given hue which contrasts with that of the remaining portion of the tab and which is painted or printed across the bottom margin of the tab to provide a band having a relatively smooth surface, said backer member having a surface texture distinguishable from the texture of the color band and having weather resistant granules embedded on its exposed surface; which granules are of a contrasting color with respect to the unpainted portions of the tabs.Type: GrantFiled: September 27, 1999Date of Patent: March 26, 2002Assignee: Building Materials Investment CorporationInventors: Frederick W. Sieling, William R. Carroll
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Patent number: 6358602Abstract: The modified ink particle includes a main body; and a modified portion formed from a modifier on at least a part of a surface of the main body of the ink particle by vapor-depositing the vaporized modifier on the surface of the floating main body. With the arrangement, modified ink particles that have relatively small and homogeneous particle diameters and are suitable for color filters can be manufactured without charging the particles, by means of a simple device and operation, in a short time, and at low costs.Type: GrantFiled: June 4, 1999Date of Patent: March 19, 2002Assignee: Sharp Kabushiki KaishaInventors: Takahiro Horiuchi, Kiyofumi Morimoto, Tadanori Hishida
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Patent number: 6358600Abstract: A sheet for protecting a paint film which does not deteriorate or discolor the paint film even when the sheet is adhered to protect the paint film under the condition containing acidic rainwater or detergent and can maintain the adhered state over an extended-period of time without peeling off is disclosed. The sheet for protecting a paint film comprises a porous substrate and a pressure-sensitive adhesive layer formed on one surface of the porous substrate. The sheet has an air permeability in a direction of sheet thickness of 20,000 sec/100 cc or more and a moisture permeability in a direction of sheet thickness of 2,000 g/m2·24 hr or more. The sheet for protecting a paint film further comprises a porous substrate and a pressure-sensitive adhesive layer formed on one surface of the porous substrate, wherein the porous substrate has an ultraviolet transmission of 10% or less at a wavelength of from 190 to 370 nm.Type: GrantFiled: June 11, 1998Date of Patent: March 19, 2002Assignees: Nitto Denko Corporation, Kansai Paint Co., Ltd.Inventors: Keiji Hayashi, Tsuyoshi Inoue, Kenichi Shibata, Kenji Sano, Mitsuyoshi Shirai, Mitsuru Horada, Hiroshi Sugawa, Komaharu Matsui, Takeshi Eda, Hiroshi Ueda
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Patent number: 6350524Abstract: The present invention relates to chloride-selective electrodes which comprise insoluble metal salt layer and a protecting membrane formed of hydrophilic polyurethane thereon, wherein the hydrophilic polyurethane coated chloride-selective electrodes show fast activation and response time and are usefully employed to accurately measure the chloride by reducing the interference from bromide and iodide or preventing the surface of the electrode from protein adsorption.Type: GrantFiled: January 4, 2000Date of Patent: February 26, 2002Inventors: Jin Seo Lee, Hyo Jung Yoon, Gang Cui, Jae Ho Shin, Hakhyun Nam, Geun Sig Cha
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Patent number: 6350527Abstract: Boronic acid containing polymers are used to form bioinert gels and multilayer surface structures. These polymers form crosslinked hydrogels, which are highly swollen in water. The crosslinking can either be chemical or physical. Water soluble polymers containing boronic acid groups, such as phenylboronic acid (PBA), can be physically crosslinked by mixing the polymers in water with other polymers containing hydroxyls or carboxylic acids. Alternatively, surfaces can be treated by stepwise incubation with a solution of the boronic acid containing polymer, followed by incubation with a solution of a diol or carboxylic acid containing polymer. Many successive layers can be generated, increasing the thickness of the formed structure at each step. The bioinert gel or surface coating can be used for passivating the surfaces of medical implants (especially those based on transplanted tissue), or for passivating the surfaces of tissues in situ.Type: GrantFiled: August 27, 1999Date of Patent: February 26, 2002Assignees: Eidgenossische Technische Hochschule Zurich, Universitat ZurichInventors: Jeffrey A. Hubbell, Donald L. Elbert, Natalie D. Winblade
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Patent number: 6342295Abstract: A moisture sensor includes a moisture-sensitive film between a pair of electrodes having conductive particles dispersed in a hygroscopic polymer. The hygroscopic polymer is a polymer comprising a polyether amine, an epoxy compound, and optionally a water-soluble nylon. Alternatively, the hygroscopic polymer is a polyether ester amide and optionally a water-soluble nylon. The sensor enables DC measurement, can detect a humidity in the range of RH 60% to 100%, and ensures high performance stability against repetitive operations.Type: GrantFiled: December 22, 1999Date of Patent: January 29, 2002Assignee: TDK CorporationInventor: Nobuo Kobayashi
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Patent number: 6340528Abstract: A donor member, useful in ionographic or electrophotographic apparatuses and preferably useful in hybrid scavengeless development units, has a substrate and an oxidized transport coating thereover. The oxidized transport coating includes a polymer binder, charge transporting molecules and one or more oxidizing agents. The polymer binder of the donor roll coating preferably includes one of (1) a crosslinked polymer with charge transporting molecules dispersed therein, or (2) a crosslinked polyamide binder with hydroxy charge transport molecules dispersed therein. The donor roll is preferably included in a printing machine that develops latent images formed on a photoconductive member.Type: GrantFiled: January 19, 2000Date of Patent: January 22, 2002Assignee: Xerox CorporationInventors: Bing R. Hsieh, Yuan Yu, Timothy J. Fuller, John F. Yanus, Damodar M. Pai, Heiko Rommelmann, Allen J. Thompson, Donald S. Stanton, Michelle L. Schlafer, Alan R. Kuntz, Ann M. Kazakos, William H. Wayman, Steven C. Hart