Patents Examined by Patrick R. Jewik
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Patent number: 5474833Abstract: A magnetoresistive detector comprising a stack of layers having different magnetic characteristics (magnetic metal multilayers) wherein there is provision, under the effect of an electrical field, for a transfer of electrons perpendicularly to the layers. To ensure several perpendicular transfers through the same stack of layers, this stack is enclosed between two electrodes, and the electrical conduction of the entire piece is interrupted by a cutting out of the structure in the form of teeth in a Greek key pattern.Type: GrantFiled: March 7, 1994Date of Patent: December 12, 1995Assignee: Thomson-CSFInventors: Patrick Etienne, Alain Schuhl
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Patent number: 5472797Abstract: An optional element having a cured coating film on optical base material wherein the cured coating film is prepared with a coating composition comprising an organosilicon compound and modified stannic oxide-zirconium oxide composite colloidal particles which are obtained by partially or fully coating the surface of stannic oxide-zirconium oxide composite colloidal particles with tungstic oxide-stannic oxide composite colloidal particles. The formed cured coating film is excellent in hot water resistance, and light-resistance and weathering resistance are not impaired even when the antireflection film made by vepor deposition of inorganic oxides is applied on the cured coating film.Type: GrantFiled: July 7, 1993Date of Patent: December 5, 1995Assignee: Hoya CorporationInventors: Eiichi Yajima, Yoshitane Watanabe, Keitaro Suzuki, Tetsunori Matsukura
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Patent number: 5470657Abstract: Disclosed is a heat-resistant, high-voltage insulated lead wire for direct current, which meets the demand for higher heat resistance, and its insulating coating over the conductor is formed by a polyolefin resin composition. The polyolefin resin composition is a flame-retarded resin composition comprising of a mixture of a polyethylene whose crystalline component has melting point higher than 125.degree. C. and a copolymer of ethylene and .alpha.-olefin, which contains a multifunctionalized monomer having unsaturated carbon-carbon bond moiety in the molecule as an indispensable component. The insulating coating made of this resin composition is irradiated by an ionizing radiation to give a heat-resistant, high-voltage lead wire for direct current, which has a perpendicular flame resistance (VW-1) acceptable in the UL Standards and has a temperature rating of higher than 125.degree. C.Type: GrantFiled: July 28, 1994Date of Patent: November 28, 1995Assignee: Sumitomo Electric Industries, Ltd.Inventor: Hiroshi Hayami
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Patent number: 5464812Abstract: A thin film of oxide superconductor consisting of more than two portions (10, 11, 12) each possessing a predetermined crystal orientation and deposited on a common surface of a substrate (2). At least one selected portion (10) of the thin film of oxide superconductor is deposited on a thin under-layer (4, 100) which facilitates crystal growth of the selected portion and which is deposited previously on the substrate. The selected portions (10) may consist of a-axis oriented thin film portions while non-selected portions (11, 12) may consists of c-axis oriented thin film portions. The thin under-layer can be a buffer layer (4) or a very thin film (100) of oxide superconductor.Type: GrantFiled: February 24, 1994Date of Patent: November 7, 1995Assignee: Sumitomo Electric Industries, Ltd.Inventors: Hiroshi Inada, Michitomo Iiyama
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Patent number: 5436060Abstract: The invention concerns a window including at least a first sheet (16), a second sheet (18), said sheets being joined together by a connecting layer (20), characterised in that it also includes an ultrasonic device (12) placed between said sheets (16,18) and co-operating directly with a first face (24) of said first sheet (16) to detect the presence of foreign bodies on a second face (26) of said first sheet (16) opposite said first face (24), said device (12) comprising a transducer (28) able to emit, via a transmitting/receiving face, an incidental ultrasonic signal of wavelength .lambda. in said first sheet (16), the thickness of said first sheet being equal to K..lambda./2, where K is an integral number, and said transducer being able to receive, via said transmitting/receiving face a reflected ultrasonic signal representative of the presence or absence of said foreign bodies to generate a detection signal.Type: GrantFiled: August 8, 1994Date of Patent: July 25, 1995Assignee: Asulab S.A.Inventors: Eric Saurer, Bernard Duthe, Roland Jeanmonod
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Patent number: 5420102Abstract: A high frequency superconducting device structure is disclosed which comprises an alkaline earth fluoride substrate with a magnesium oxide lower buffer layer on the alkaline earth substrate and an upper buffer layer epitaxial template layer on the magnesium oxide layer for providing a template for epitaxial growth of a high temperature superconducting film on the upper buffer layer, providing reduced dielectric and conducting losses at high frequencies. The disclosed structure may be incorporated into a multi-chip module (MCM) for providing very high speed interconnections.Type: GrantFiled: August 1, 1994Date of Patent: May 30, 1995Assignee: Neocera, Inc.Inventors: Kolagani S. Harshavardhan, Thirumalai Venkatesan
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Patent number: 5418042Abstract: Improved image receiving elements for nonimpact printing comprising a support and an image receiving layer, said image receiving layer comprising a whitening agent and a binder, said binder consisting essentially of 10-25% gelatin and 75-90% water soluble, film forming acrylic polymer are disclosed.Type: GrantFiled: January 6, 1994Date of Patent: May 23, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: James H. Thirtle, Steven J. Morganti, John H. Bayless, Jr.
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Patent number: 5413842Abstract: Ceramic green sheets of controlled microporosity and method of making same have been provided. Controlled microporosity is achieved by including certain ionic species in the ceramic composition, particularly boron, phosphorus and copper oxide.Type: GrantFiled: April 12, 1994Date of Patent: May 9, 1995Assignee: International Business Machines CorporationInventors: Cynthia N. Felisberto, Stephen A. Milkovich, Robert W. Nufer
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Patent number: 5411789Abstract: A composition is disclosed which forms a bend sensor when coated on a flexible substrate. A bend sensor prepared from the composition is also disclosed. The composition contains a brittle binder which cracks under a stress, electrically conductive elements and a graphite additive which stabilizes the degree of cracking. The composition forms a bend sensor which upon a change in degree of flexing produces an electrical signal in the form of a change in resistance in circuits which include the sensor.Type: GrantFiled: February 26, 1992Date of Patent: May 2, 1995Assignee: National Starch and Chemical Investment Holding CorporationInventor: Keith J. Margolin
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Patent number: 5409769Abstract: A composite adsorbent comprising an acid salt of an m- or p-aromatic amino acid and an acid. The adsorbent may further contain a transition metal compound. The former removes aldehydes, ammonias and amines simultaneously, and the latter further removes hydrogen sulfide. The composite adsorbent is used in the form of a powder, a solution, or a solid supported on a carrier.Type: GrantFiled: February 19, 1993Date of Patent: April 25, 1995Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Kazuhiro Fukumoto, Masahiro Sugiura
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Patent number: 5376456Abstract: Electroluminescent devices have, as the active layer, a polymer having a chain comprising a plurality of electroluminescent groupings, adjacent pairs of the electroluminescent groupings being connected via two benzene rings linked by only a single covalent bond, at least one of the benzene rings bearing, at a position ortho to the covalent bond, a substituent of sufficient size that the two benzene rings are essentially not conjugated with each other. Preferred electroluminescent groupings comprise a chain of three or more para-phenylene groups connected to one another by amide, carboxy, ester, urea, urethane or vinyl groups. The polymers have a fixed conjugation length with predictable electroluminescent properties.Type: GrantFiled: May 13, 1993Date of Patent: December 27, 1994Assignee: Polaroid CorporationInventors: William J. Cumming, Russell A. Gaudiana, Richard T. Ingwall, Eric S. Kolb, Cheryl P. Petersen
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Patent number: 5374469Abstract: A flexible printed substrate imparted with an adhesive property for loading on an external substrate, a double printed substrate having formed on both surfaces thereof a metal layer or a wiring circuit, and a multilayer substrate having a multilayer structure are disclosed. The flexible printed substrate comprises an insulating resin layer comprising a low-linear expansion polyimide resin layer and a thermoplastic polyimide resin layer, and a metal layer or a wiring circuit formed on the low-linear expansion polyimide resin layer of the insulating resin layer, wherein a mixed region of the polyimide resin components is formed in the interface between the low-linear expansion polyimide resin layer and the thermoplastic polyimide resin layer.Type: GrantFiled: September 17, 1992Date of Patent: December 20, 1994Assignee: Nitto Denko CorporationInventors: Atsushi Hino, Amane Mochizuki, Kazuo Ouchi, Shoji Morita, Toshiki Naito, Kazumi Higashi, Masako Maeda, Masayuki Kaneto, Munekazu Tanaka, Masakazu Sugimoto
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Patent number: 5372871Abstract: The invention provides a circuit board for an optical element which is disposed in an optical reading apparatus or an optical writing apparatus and is used to irradiate document reading light upon an document or irradiate image writing light upon a photosensitive material through a lighting window thereof.Type: GrantFiled: March 10, 1993Date of Patent: December 13, 1994Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Mitsuo Takase, Nobuhiro Fukuda, Toshihiro Dodo
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Patent number: 5364836Abstract: Disclosed is an article that comprises a superconductor-insulator (s-i) layer structure. The superconductor material has nominal composition Ba.sub.1-x M.sub.x BiO.sub.3-y (M is K, Rb, or K and Rb, 0.35<x.ltorsim.0.5, 0<y.ltorsim.0.25). In some preferred embodiments the insulator is a Ba- and Bi containing oxide, exemplarily BaBi.sub.2 O.sub.4, Ba.sub.1-x M.sub.x BiO.sub.3 (0.ltoreq.x<0.35), or Ba.sub.1-x Bi.sub.1+x O.sub.3 (0.ltoreq.x.ltorsim.0.5). In other embodiments the insulator is an insulating oxide with the NaCl structure (e.g., Mg.sub.1-x Ca.sub.x O), an insulating perovskite (e.g., BaZrO.sub.3 ), an insulator with the K.sub.2 NiF.sub.4 structure (e.g., Ba.sub.2 PbO.sub.4), an insulating fluoride with the BaF.sub.2 structure (e.g., Ba.sub.1-x Sr.sub.x F.sub.2), or an insulating fluoride with the NaCl structure (e.g., LiF). Disclosed are also advantageous methods of making an article according to the invention.Type: GrantFiled: March 8, 1993Date of Patent: November 15, 1994Assignee: AT&T Bell LaboratoriesInventors: Robert C. Dynes, Elliot H. Hartford, Jr., Eric S. Hellman, Andrew N. Pargellis, Fred Sharifi
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Patent number: 5358774Abstract: An electromagnetic shielding assembly comprises a substrate, an electrically conductive carbon composition shielding plate, and a metallic plate, wherein the electrically conductive carbon composition plate is physically and electrically coupled to the substrate and the metallic plate. By positioning the substrate such that a circuit that emits, or is sensitive to, electromagnetic energy is substantially enclosed within a cutout area of the electrically conductive carbon composition plate, the electromagnetic shielding assembly substantially contains the electromagnetic energy radiating from, or towards, the circuit.Type: GrantFiled: April 26, 1993Date of Patent: October 25, 1994Assignee: Motorola, Inc.Inventor: Thomas E. Garvens
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Patent number: 5356675Abstract: A glass panel assembly includes at least one elastomeric base plate which is received on a supporting frame structure, at least one elongated rigid attachment element received on the base plate for attaching it to the frame structure, at least one glass panel received on the base plate so that it is supported thereon and at least one pressure plate received on the glass panel and secured to the attachment element for securing the glass panel in the assembly. The assembly is adapted to compensate for dimensional irregularities and different angular planes in the supporting frame structure as well as differences in the thermal expansion properties of the various components in the assembly and the support frame structure. The assembly is further adapted to minimize thermally conductive paths between interior and exterior assembly components in order to minimize condensation on interior components, and the one or more base plates of the assembly include gutters for removing moisture from the assembly.Type: GrantFiled: December 28, 1992Date of Patent: October 18, 1994Inventors: Frederick C. Unger, Ronald M. Hays
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Patent number: 5354599Abstract: An array of dielectric vias formed in the insulating layers of a unitized multilayer circuit structure wherein the dielectric vias have a dielectric constant different from the dielectric constant of the insulating layers in which they are formed.Type: GrantFiled: September 27, 1993Date of Patent: October 11, 1994Assignee: Hughes Aircraft CompanyInventors: Robert F. McClanahan, Robert D. Washburn
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Patent number: 5346772Abstract: An organic electroluminescent device comprises an anode, a positive-hole transport layer of organic compound, an emitting layer of organic compound, and a cathode which are laminated in sequence, wherein the emitting layer comprises a pyrimidopyrimidine derivative. This device emits with a high luminance and high emission efficiency.Type: GrantFiled: April 27, 1993Date of Patent: September 13, 1994Assignee: Pioneer Electronic CorporationInventors: Shuzo Akiyama, Kenichiro Nakashima, Kunio Imai, Ryuji Murayama, Jun Funaki
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Patent number: 5346750Abstract: A method of manufacturing an organic substrate used for printed circuits, which includes the steps of forming through-holes (3) in a porous raw material (2) provided with cover films (1) and having compressive shrinkage, filling electro-conductive paste (4) into the through-holes (3), separating the cover films (1) from the porous raw material (2) filled with the electro-conductive paste (4) in its through-holes (3), applying metal foils (5) onto the surfaces of the porous raw material (2) from which the cover films (1) have been separated, and compressing the porous raw material (2) applied with the metal foils (5) through heating and pressurization, whereby the electro-conductive substances in the electro-conductive paste are connected for electrical connection between the metal foils.Type: GrantFiled: May 6, 1993Date of Patent: September 13, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akihito Hatakeyama, Hiroshi Sogo, Tamao Kojima, Yasuhiko Horio, Masahide Tsukamoto, Yasushi Fukumura
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Patent number: 5346746Abstract: A combination flock and other material transfer. The flock has an open interior section. The other material, such as twill, is die cut greater than the opening of the interior section of the flock but less than the outside dimensions of the flock design. The unit is applied to a garment with a hot melt adhesive which seals the flock to the twill and the edges of the flock and the twill to the garment.Type: GrantFiled: March 4, 1993Date of Patent: September 13, 1994Assignee: High Voltage Graphics, Inc.Inventor: Louis B. Abrams