Patents Examined by Hoa T. Le
  • Patent number: 6376044
    Abstract: A thin layer for sample analysis by matrix-assisted laser desorption mass spectrometry, comprising a matrix material in a supported dispersion wherein the support is a solid or is formed from a solid. The invention is also directed to a method of making a thin layer for sample analysis by matrix-assisted laser desorption mass spectrometry, the layer comprising a matrix-solid composition disposed upon a substrate, comprising the step of depositing a solution containing matrix, solid and solvent upon a spinning substrate at a deposition rate sufficient to allow evaporation of the solvent, thereby interspersing the matrix and support on the substrate in a thin layer. Enhanced mass resolution is described.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: April 23, 2002
    Assignee: Waters Investments Limited
    Inventors: Joseph A. Jarrell, Michael J. Tomany, Craig A. Dorschel
  • Patent number: 6376077
    Abstract: A process for the production of coupling agent-treated inorganic particles, which process is excellent in surface-treatment uniformity and uses a coupling agent at high coefficient of utilization, the process comprising adding a solution of a coupling agent into an aqueous suspension of inorganic particles with stirring and, after the mixing with stirring, heat-drying the resultant suspension without dehydration by filtration and concentration, and a synthetic resin composition containing the above particles and having excellent properties.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: April 23, 2002
    Assignee: Kyowa Chemical Industry Co., Ltd.
    Inventors: Wataru Hiraishi, Shunji Ohishi
  • Patent number: 6372347
    Abstract: An image forming member for electrophotographic copying machines, facsimile machines and printers which has semi-conductivity, non-tackifying property and high dielectric property and therefore has high charging and image-transferring efficiency, is excellent in feeding property and separability of papers, is free from paper jamming and can give an excellent image stably; a paint used for the member; a carbon fluoride composition used for the paint; a composite material of fine particles of carbon fluoride; and a process for preparing the composite material are provided. The carbon fluoride composition comprises carbon fluorides and at least one selected from the group consisting of resins and rubbers and has semi-conductivity, non-tackifying property and a specific dielectric constant of not less than 10 at 25° C. at 1 kHz.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: April 16, 2002
    Assignee: Daikin Industries, Ltd.
    Inventors: Fumihiko Yamaguchi, Tomohiro Isogai, Tomohiro Hosomi, Shigeru Maruyama
  • Patent number: 6372348
    Abstract: Annealable insulated metal-based powder particles and methods of preparing and using the same are provided. The insulated metal-based powder particles are formed from metal-based core particles that are coated with an annealable insulating material. The annealable insulating material has at least one inorganic compound and at least one organic polymeric resin. The inorganic compound in the insulating material forms a nonporous insulating layer surrounding the metal-based core particles upon heating. The organic polymeric resin preferably aids in dispersing or binding the inorganic compound to the metal-based core particles prior to annealing. The insulated metal-based powder particles produced can be formed into core components that can be annealed to improve the magnetic performance of the core component. The core components produced are particularly useful under AC operating conditions of 500 Hz or lower.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: April 16, 2002
    Assignee: Hoeganaes Corporation
    Inventors: Francis G. Hanejko, George Ellis
  • Patent number: 6372175
    Abstract: It has been discovered that the shape of a resin pellet can be controlled to reduce cycle time of an injection molding machine and improve the yield by narrowing variability in the plasticizing time.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: April 16, 2002
    Assignee: General Electric Company
    Inventors: Kazushige Inoue, Cornelis Jan Maria Rijken
  • Patent number: 6368704
    Abstract: To provide a conductive paste that exhibits a high thermal conductivity (a low thermal resistance) after adhesion and hardening and that enables an adhesive layer to be formed thin and to provide an electronic part that has an excellent radiating capability and that enables the thickness of films to be reduced. A conductive paste containing conductive particles, a hardenable resin, and a solvent has mixed therein fine spherical conductive particles such as Ag particles, the particle size is on the order of 0.05 to 1 &mgr;m, smaller than the first conductive particles. This conductive paste is used to mount an electronic part such as a semiconductor chip in producing a semiconductor package.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: April 9, 2002
    Assignee: NEC Corporation
    Inventors: Satoshi Murata, Miki Kashiwabara
  • Patent number: 6365275
    Abstract: Substantially cylindrical unexpanded polystyrene beads with a diameter on the order of 1 mm and a length on the order of 3 mm are expanded into substantially cylindrical expanded polystyrene beads with a diameter between about 2 and 5 mm, and a length between about 4 and 10 mm. These expanded beads are well suited for use as a substitute for concrete aggregate to make lightweight concrete and concrete construction boards.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: April 2, 2002
    Assignee: Polysource, Inc.
    Inventor: Erik W. Wehtje
  • Patent number: 6365274
    Abstract: Powders of oxidized polyarylene sulfide and powders comprising from 1 to 99% by weight of oxidized polyarylene sulfide and from 1 to 99% by weight of a metal, carbide, ceramic or high temperature polyimide, polyamide imide, polyester imide and aromatic polyester plastic, or a mixture thereof are very suitable for use in thermal spraying and thereby form coatings having a strong chemical and mechanical resistance and high dimensional stability when exposed to high and low temperatures. Such coatings are advantageous for use as abradable seal clearance control coating in the compressor section of gas turbine engines, motor vehicle turbochargers and superchargers, and for use as a coating of reaction vessels, kitchen ware, sealings or bearings.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: April 2, 2002
    Assignee: Ticona GmbH
    Inventors: DI. Helmut Scheckenbach, Christopher William Smith
  • Patent number: 6361877
    Abstract: A thermal spray material includes a mixture of 5-30 weight % of an AlSi alloy powder with 95-70 weight percent of a cast iron powder to provide abrasion resistance for aluminum alloy parts. The AlSi alloy powder contains 12-30 weight % Si, at least one element selected from a group consisting of 0.5-5.0 weight % Cu and 0.2-3.0 weight % Mg, 1-15% of at least one element selected from the group consisting of Fe, Mn, and Ni, and a mass balance of Al. The cast iron powder contains 2-4 weight % C, no more than 0.3 weight % Si, and 0.5-3.0 weight % P. A sliding surface of a sliding member is thermal sprayed with a coating of this thermal spray material to provide a sliding member having excellent abrasion resistance.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: March 26, 2002
    Assignee: Suzuki Motor Corporation
    Inventors: Kenji Miyai, Seiya Kunioka, Tadashi Takahashi
  • Patent number: 6358623
    Abstract: Cineole C10H18O is used for as treatment agent for surface-treating wooden building materials. Eucalyptus oil mainly containing cineole may be utilized for the solution as a substitute. Japan wax, beeswax, carnauba wax or nonionic surface active agent is available as the additives of the agent. Since cineole has various pharmaceutical effects, wooden building materials impregnated therewith may exhibit preservability and protecting effects from molding and infesting with insects without spoiling natural appearance of wood, besides may contribute to present floorboards being sanitary and hygienic especially in humid climates.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: March 19, 2002
    Assignee: Kabushiki Kaisha Nihon Tekuma
    Inventor: Saburo Fukushima
  • Patent number: 6358603
    Abstract: A shaped article, at least one domain of which has a three-dimensionally reinforced composite structure comprising of a matrix and a reinforcing system (2, 4, 5, 6), the reinforcing system comprising bodies such as bars, wires, cables, or plates embedded in the matrix and extending three-dimensionally in first (4, 5) second (2) and third (6) dimensions therein, the reinforcing system being tension interlocked in at least one dimension in that reinforcement components extending in the first and/or second dimension are tension interlocked to reinforcement components extending in the same dimension(s), but at a transverse distance therefrom, by transverse reinforcement components extending in a dimension transverse, to a plane or surface defined by the reinforcement in the first and/or second dimension. The matrix is preferably a dense cement-based matrix prepared from cement, microsilica, a concrete superplaticiser and water, or a metallic matrix.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: March 19, 2002
    Assignee: Aalborg Portland A/S
    Inventor: Hans Henrik Bache
  • Patent number: 6358611
    Abstract: Primarily dedicated to the production of ultrafine particles with good dispersion stability on a industrial scale, the invention provides ultrafine particles characterized in that each of its constituent particles comprises a shell substantially composed of a metal organic compound and a core substantially composed of the metal derived from the metal organic compound, the ultrafine particles having a mean diameter of 1-100 nm, and a process for producing the ultrafine particles.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: March 19, 2002
    Assignees: Tomoe Works Co., Ltd., Osaka Municipal Government
    Inventors: Hiroshi Nagasawa, Masami Nakamoto
  • Patent number: 6348259
    Abstract: The invention relates to novel manganese dioxide electrodes containing modified, electrochemically active manganese dioxide, a method for their production and their use in primary electrochemical cells. The manganese dioxide electrode contains coated or uncoated inorganic particles, in which the carrier particles consist of a material chosen from the group: mica, SiO2, Al2O3, ZrO2 and ZnO.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: February 19, 2002
    Assignee: Merck Patent Gesellschaft mit
    Inventors: Volker Hilarius, Gerhard Pfaff, Ralf Glausch, Dietmar Rahner, Waldfried Plieth, Matthias Kloss
  • Patent number: 6344273
    Abstract: The present invention provides a soft magnetic powder composite core for an electric apparatus produced with soft magnetic particles having electric insulating layers on the surfaces thereof, wherein said electric insulating layers are formed by mixing said soft magnetic particles with an insulating layer-forming solution which comprises a phosphating solution and a rust inhibitor, which is an organic compound containing at least one of nitrogen or sulfur having a lone pair of electrons suppressing the formation of iron oxide and surfactant, and drying the treated soft magnetic particles at a predetermined temperature. The soft magnetic powder composite core is excellent in iron loss and magnetic flux density.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: February 5, 2002
    Assignees: Hitachi, Ltd., Hitachi Powdered Metals Co., Ltd.
    Inventors: Yuichi Satsu, Hideaki Katayama, Yuzo Ito, Akio Takahashi, Noboru Baba, Chikara Tanaka, Kazuo Asaka, Chio Ishihara, Hiroaki Miyata, Kazuhiro Satou
  • Patent number: 6344271
    Abstract: Nanoscale non-stoichiometric materials with unusual properties are disclosed. These materials offer a wide range of novel formulations for applications in catalysis, chemicals and fuels, electronics, electromagnetics, photonics, optics, sensors, electrochemical products, structural products, biomedical engineering, acoustics, composites, and other applications. Illustrative methods and processes are disclosed to highlight catalytic properties and electrical properties and to process these materials from powder or porous forms into dense forms and shapes. The invention includes a non-stoichiometric composition of a material, preferably in nanostructured form, for various applications including, but not limited to, methods to reduce the sintering temperature, the sintering time, or both.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: February 5, 2002
    Assignee: NanoEnergy Corporation
    Inventors: Tapesh Yadav, Ming Au, Bijan Miremadi, John Freim, Yuval Avniel, Roger Dirstine, John Alexander, Evan Franke
  • Patent number: 6342293
    Abstract: A process for producing an alumina sol, which comprises stirring a dispersion of an alumina hydrate having a solid content of from 1 to 40 wt % at a pH of from 7 to 12 with an effective consumptive power of at least 0.5 kW/m3 for aggregation treatment, and then adding an acid thereto for peptization treatment.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: January 29, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Katsumasa Nakahara, Kenji Yamada, Hachiro Hirano, Toshiya Matsubara
  • Patent number: 6337125
    Abstract: A composite electromagnetic absorber provides increased EMR absorption while being thinner and/or lighter than prior art EMR absorbers. To accomplish this, synthetic dielectric materials are combined with either synthetic magnetic materials or magnetically lossy materials in such a way that the permittivity and permeability of the composite material are substantially matched over the desired range of frequency. The match in the permittivity and permeability allows the majority of the electromagnetic fields to enter the material where the electric and magnetic loss components absorb the electromagnetic energy.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: January 8, 2002
    Assignee: Northrop Grumman Corporation
    Inventors: Rodolfo E. Diaz, Michael C. Miller, Michael M. Lo Re', James P. K. Gilb, Shahriar Alam
  • Patent number: 6337131
    Abstract: Disclosed are core-shell particles, whose core and shell materials are capable of forming a two-phase system, the shell material being filmable, the core being essentially form-stable under shell-filming conditions and being only very minimally swellable by the shell material, if at all, the cores having a monodisperse size distribution, and there being a difference between the refractive indices of the core material and of the shell material of at least 0.001. Also disclosed are the preparation of the core-shell particles and their use for preparing effect colorants.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: January 8, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Robert Rupaner, Reinhold J Leyrer, Peter Schuhmacher
  • Patent number: 6335097
    Abstract: Lamination molding resin-coated sand which can advantageously enhance accuracy for a formed article, is lamination molding resin-coated sand used for lamination molding for forming an article by laminating sand layers in thickness direction. Sand particles coated with resin are 20 to 100 &mgr;m in diameter and generally spherical. The resin has a mean molecular weight of about 2000 to 10000 and a fusion temperature of 100° C. or higher.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: January 1, 2002
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yukio Otsuka, Motoaki Ozaki
  • Patent number: 6335096
    Abstract: Potassium titanate fine particles wherein the length is shorter than 5 &mgr;m, the content of the particles having the ratio of the length to the breadth is less than 3 is from 70 to 100% by number ratio, the diffraction intensity in the X-ray diffraction is low and the particles are low crystallinity, and the specific surface area thereof is from 20 to 50 m2/g.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: January 1, 2002
    Assignee: Kawatetsu Mining Co., Ltd.
    Inventor: Hidefumi Konnai