Patents Examined by Kathryn L. Gorgos
  • Patent number: 5750278
    Abstract: A mono-container fuel cell generator (10) contains a layer of interior insulation (14), a layer of exterior insulation (16) and a single housing (20) between the insulation layers, where fuel cells, containing electrodes and electrolyte, are surrounded by the interior insulation (14) in the interior (12) of the generator, and the generator is capable of operating at temperatures over about 650.degree. C., where the combination of interior and exterior insulation layers have the ability to control the temperature in the housing (20) below the degradation temperature of the housing material. The housing can also contain integral cooling ducts, and a plurality of these generators can be positioned next to each other to provide a power block array with interior cooling.
    Type: Grant
    Filed: August 10, 1995
    Date of Patent: May 12, 1998
    Assignee: Westinghouse Electric Corporation
    Inventors: James E. Gillett, Jeffrey T. Dederer, Paolo R. Zafred
  • Patent number: 5750011
    Abstract: An apparatus and method for producing positive and negative ions and/or electrons in a gas of any atmosphere without producing dust, a method and structure for neutralizing a charged body in a short period of time and for completely preventing static electricity from being generated, and various apparatuses and structures, such as a conveyor, wet bench, and clean room, which use the neutralizing method and structure. The gaseous ion producing apparatus produces positive and negative ions and/or electrons in a gas by irradiating, with electromagnetic waves in a soft X-ray region, the gas under a high pressure, atmospheric pressure, or reduced pressure. In the neutralizing structure an X-ray unit is arranged at an appropriate place to apply the electromagnetic waves in a soft X-ray region to the atmospheric gas surrounding a charged body.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: May 12, 1998
    Assignees: Tadahiro Ohmi, Takasago Netsugaku Kogyo Kabushiki Kaisa, Hamamatsu Photonics Kabushiki Kaisha
    Inventors: Tadahiro Ohmi, Hitoshi Inaba, Tomoyuki Ikedo
  • Patent number: 5750018
    Abstract: A substantially cyanide-free plating solution for depositing copper from the monovalent ionic state, which includes monovalent copper ion, a reducing agent capable of reducing divalent copper ions to monovalent copper ions, an alkali material in an amount sufficient to maintain the pH of the solution in the range of about 7 to about 10, and a complexing agent of an imide, such as succinimide, 3-methyl-3-ethyl succinimide, 3-methyl succinimide, 3-ethyl succinimide, 3,3,4,4-tetramethyl succinimide, or 3,3,4-trimethyl succinimide, or a hydantoin, such as dimethyl hydantoin. The substantially cyanide-free plating solutions may also include at least one of a conductivity salt, an additive to promote brightness, or an alloying metal. The reducing agent may be an alkali sulfite, alkali bisulfite, hydroxylamine, or hydrazine. The copper is typically provided in the form of CuCl, CuCl.sub.2, CuSO.sub.4, or Cu.sub.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: May 12, 1998
    Assignee: LeaRonal, Inc.
    Inventor: William R. Brasch
  • Patent number: 5750015
    Abstract: Devices and methods are disclosed for moving charged molecules through a medium by the application of a plurality of electrical fields of sufficient strength and applied for sufficient amounts of time so as to move the charged molecules through the medium. The devices although preferably small in size, preferably generate large numbers (100 or more) of electrical fields to a movement area which preferably contains a liquid buffered or gel medium. Mixtures of charged molecules are pulled through the gel by the force of the electrical fields. The fields are preferably activated simultaneously or sequentially one after another at various speeds to create complex force field distributions or moving field waves along the separation medium. Charged molecules capable of moving quickly through the gel will be moved along by the faster moving field waves and be separated from slower moving molecules.
    Type: Grant
    Filed: March 13, 1996
    Date of Patent: May 12, 1998
    Assignee: Soane Biosciences
    Inventors: David S. Soane, Zoya M. Soane
  • Patent number: 5746903
    Abstract: Methods of forming high-aspect ratio blind apertures and thereafter filling the apertures with a plating solution are disclosed. A layer of photosensitive material is pattern exposed to actinic radiation to define the apertures, and thereafter exposed to aqueous developer solution. The apertures are then rinsed with water and thereafter exposed to plating solution without drying the aperture of water or developer solution. This is contrary to conventional practice where photoresist layers are dried, and usually post-baked after the development step in order to improve dimensional integrity and reduce swelling of the photoresist material.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: May 5, 1998
    Assignee: Fujitsu Limited
    Inventors: Solomon I. Beilin, William T. Chou, Michael G. Lee, Wen-chou Vincent Wang
  • Patent number: 5746929
    Abstract: A process for structuring polymer films, such as printed circuit boards and film boards, uses a plasma, which is formed in a container by the excitation of gas mixtures by microwaves, in which there is a control of the surface temperature of the polymer films during structuring by the plasma. By adjusting the parameters it is possible to operate just below a material-damaging temperature limit for polymer films, so that structures or microshapes are carefully plasma-eroded in polymer films. At high surface temperatures and with a dense plasma, structures or microshapes are rapidly eroded by the plasma, in which the structures or microshapes are homogeneously plasma-eroded with a uniform distribution of the surface temperature and gas flow.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: May 5, 1998
    Assignee: Dyconex Patente AG
    Inventors: Walter Schmidt, Hermann Schmid
  • Patent number: 5747418
    Abstract: An apparatus and method for producing electricity from heat. The present invention is a thermoelectric generator that uses materials with substantially no electrical resistance, often called superconductors, to efficiently convert heat into electrical energy without resistive losses. Preferably, an array of superconducting elements is encased within a second material with a high thermal conductivity. The second material is preferably a semiconductor. Alternatively, the superconducting material can be doped on a base semiconducting material, or the superconducting material and the semiconducting material can exist as alternating, interleaved layers of waferlike materials. A temperature gradient imposed across the boundary of the two materials establishes an electrical potential related to the magnitude of the temperature gradient. The superconducting material carries the resulting electrical current at zero resistivity, thereby eliminating resistive losses.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: May 5, 1998
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John D. Metzger, Mohamed S. El-Genk
  • Patent number: 5746901
    Abstract: A hybrid slab-microchannel gel electrophoresis system. The hybrid system permits the fabrication of isolated microchannels for biomolecule separations without imposing the constraint of a totally sealed system. The hybrid system is reusable and ultimately much simpler and less costly to manufacture than a closed channel plate system. The hybrid system incorporates a microslab portion of the separation medium above the microchannels, thus at least substantially reducing the possibility of non-uniform field distribution and breakdown due to uncontrollable leakage. A microslab of the sieving matrix is built into the system by using plastic spacer materials and is used to uniformly couple the top plate with the bottom microchannel plate.
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: May 5, 1998
    Assignee: Regents Of The University Of California
    Inventors: Joseph W. Balch, Anthony V. Carrano, James C. Davidson, Jackson C. Koo
  • Patent number: 5747727
    Abstract: A metal oxide layer is provided around a thermocouple element. The metal oxide layer is formed by preparing a sol, in which particulates of a metal oxide are dispersed, by a sol-gel method, dipping the thermocouple element in this sol, energizing the thermocouple element as a cathode for bonding the precursor particulates of the metal oxide thereto, and heat treating the same. The thermocouple according to the present invention is compact with a thin insulating layer, excellent in flexibility, and provides no gas adsorption source.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: May 5, 1998
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kazuo Sawada, Shinji Inazawa, Kouichi Yamada
  • Patent number: 5746905
    Abstract: The organic coating deposited on a metallic substrate is quantitatively euated by measurement of electrical signals through an electrochemical cell having an electrode separated from the deposited coating by a porous pad within which a liquid medium is absorbed. Quality determining parameters of the coating are rapidly calculated through a data processor to which electrical current and phase shift measurements are fed together with data from the electrochemical cell. The method may be used to evaluate the quality of the coating on the steel hull of a marine vessel exposed to seawater.
    Type: Grant
    Filed: February 14, 1996
    Date of Patent: May 5, 1998
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: John N. Murray
  • Patent number: 5744023
    Abstract: An electric current is passed through a mixed solution containing a saccharide(s) and an organogermanium compound, in a compartment whose anode side is defined by an anion exchange membrane and whose cathode side is defined by a cation exchange membrane, to separate and remove said organogermanium compound. In the present invention, an organogermanium compound can be very effectively separated and recovered from a mixed solution containing a saccharide(s) and said organogermanium compound. The present invention is particularly effective for separation and recovery of an organogermanium compound from a reaction mixture obtained when a compound having an aldose structure is isomerized into a compound having a ketose structure in the presence of said organogermanium compound.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: April 28, 1998
    Assignees: Asai Germanium Research Institute Co., Ltd., Asahi Glass Company
    Inventors: Norihiro Kakimoto, Keiji Umeda, Takashi Ichimura
  • Patent number: 5744367
    Abstract: A method and apparatus for measuring electrochemiluminescence from a sample composition are described wherein magnetically responsive electrochemiluminescent active species are captured on the electrode with the aid of a capture magnet having a configuration such that the magnetic flux lines (or the magnetic field gradient) of at least one magnetic field source therein are compressed and/or dispersed. This capture magnet improves the distribution of the magnetically responsive electrochemiluminescent active species on the electrode surface and reduces interference with the photomultiplier tube, thereby enhancing the ECL signal and improving sensitivity. The improved capture and distribution also allows for shorter assay times.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: April 28, 1998
    Assignee: IGEN International, Inc.
    Inventors: David B. Talley, Jonathan K. Leland
  • Patent number: 5744021
    Abstract: The invention relates to 2-alkylmercapto-4-(trifluoromethyl)benzoic esters of the formula (II), in which R.sup.1 and R.sup.2 are, independently of each other, (C.sub.1 -C.sub.6) alkyl, and a process for their preparation, which comprises reacting 3,4-dichlorobenzotrifluoride electrochemically at an anode with CO.sub.2 to give 2-chloro-4-(trifluoromethyl)-benzoate, converting it into the corresponding benzoic ester of the formula (I), and then reacting it with an alkylmercaptide R.sup.2 S.sup.e.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: April 28, 1998
    Assignee: Hoechst AG
    Inventors: Peter Brungs, Thomas Karcher, Klaus Kuhlein, Hans Millauer, Manfred Wildt
  • Patent number: 5744019
    Abstract: Multiple-layer thin film devices are deposited by electroplating on an otherwise substantially clean substrate wafer. The composition of the electroplated alloy layers is maintained substantially uniform using a cathode assembly on which the substrate wafer is mounted. The cathode assembly includes an inner cathode ring electrically connected to the wafer, a thief ring external to the cathode ring and an insulating ring connected between and electrically insulating the cathode and thief rings. The cathode ring and the thief ring are powered by separate power sources.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: April 28, 1998
    Assignee: AIWA Research and Development, Inc.
    Inventor: Jane Ang
  • Patent number: 5741411
    Abstract: The invention provides a side-entry optical excitation geometry for use in a multiplexed capillary electrophoresis system. A charge-injection device is optically coupled to capillaries in the array such that the interior of a capillary is imaged onto only one pixel. In Sanger-type 4-label DNA sequencing reactions, nucleotide identification ("base calling") is improved by using two long-pass filters to split fluorescence emission into two emission channels. A binary poly(ethyleneoxide) matrix is used in the electrophoretic separations.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: April 21, 1998
    Assignee: Iowa State University Research Foundation
    Inventors: Edward S. Yeung, Qingbo Li, Xiandan Lu
  • Patent number: 5741407
    Abstract: The invention relates to a method of continuously manufacturing a conductor having a core S based on aluminum and coated by being electroplated with at least one layer of silver, characterized in that the following steps are performed in succession with intermediate rinsing steps (r):a) the conductor is degreased;b) oxide is removed from the conductor;c) the surface of the conductor is treated in an adhesion bath;d) a first layer of silver is electroplated by immersion in a first electrolytic bath; ande) a second layer of silver is electroplated by immersion in a second electrolytic bath.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: April 21, 1998
    Assignee: Axon' Cable S.A.
    Inventor: Ning Yu
  • Patent number: 5740515
    Abstract: An article of manufacture which is subject to erosive and corrosive attack in a high-temperature environment is formed of a substrate of nickel or cobalt-based superalloy, and a protective silicide coating disposed on the substrate. A thermal barrier layer of ceramic may be disposed between the superalloy and the silicide layer, and an MCrAlY layer may be disposed between the ceramic and the superalloy substrate. The silicide coating is preferably MoSi.sub.2.
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: April 14, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventor: Wolfram Beele
  • Patent number: 5738776
    Abstract: A process for electroplating a metal clad substrate by coating the substrate with a coating of carbonaceous particles. The coating of particles is applied to the substrate from an aqueous dispersion and then the coating is saturated with an etchant for the metal cladding on the substrate to undercut the carbonaceous coating and facilitate its removal from areas where plating is undesired.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: April 14, 1998
    Assignee: Shipley Company, L.L.C.
    Inventors: Steven M. Florio, Jeffrey P. Burress, Carl J. Colangelo, Edward C. Couble, Mark J. Kapeckas
  • Patent number: 5736453
    Abstract: A method for dividing a plural number of semiconductor devices into individual semiconductor devices to increase the number of chips manufactured per wafer by forming scribing lines in narrow width. Isotropic etching, such as plasma etching in CF.sub.4, O.sub.2 gas, is carried out by utilizing resist layer 31c to 35a as a mask. Then by carrying out heat treatment the resist layer 31 to 35a loosens, and as a result, side walls of the passivation layer 15 are covered with the resist layer. N type epitaxial layer 4 of the openings 24 and 25 for the scribing line is etched by carrying out isotropic plasma etching once again. Since the side walls of the passivation layer 15 of the openings 24 and 25 for the scribing line are covered with the resist layer, the openings 24 and 25 are not etched in the horizontal direction.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: April 7, 1998
    Assignee: Rohm Co., Ltd.
    Inventor: Hiroshi Kadonishi
  • Patent number: 5736012
    Abstract: A process for the preparation of a fluorinated acid such as trifluoroacetic acid, including admixing an hydrofluorocarbon, such as 1,1,1-trifluoroethane, with chlorine, an oxidizing agent and an additive to prevent or minimize decomposition; and irradiating the reaction mixture with a light source having a wavelength ranging from 2000 .ANG. to 14000 .ANG..
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: April 7, 1998
    Assignee: AlliedSignal Inc.
    Inventors: Alagappan Thenappan, Michael Van Der Puy