At Least One Anodic Coating Patents (Class 205/171)
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SOLID ELECTROLYTIC CAPACITOR, ELECTRONIC DEVICE USING THE SAME, AND METHOD OF MANUFACTURING THE SAME
Publication number: 20100302711Abstract: A solid electrolytic capacitor, an electronic device using the same, and a method for manufacturing the same are disclosed. An aspect of the invention provides a solid electrolytic capacitor including: an anode including any one of niobium or a niobium alloy; a dielectric layer formed on the anode, wherein the dielectric layer contains niobium oxide; and a cathode layer formed on the dielectric layer, wherein the cathode layer contains copper.Type: ApplicationFiled: March 9, 2010Publication date: December 2, 2010Applicant: SANYO ELECTRIC CO., LTDInventors: Kazuhiro KANEDA, Koichi NISHIMURA, Hiroshi NONOUE -
Patent number: 7843201Abstract: A method of testing light metal parts, in particular aluminum components, which have been coated by anodizing, in particular by TSA anodizing, to determine whether they have been coated is described. According to the invention, the surface resistance of the surface of the component is measured and the surface coating of the component is classed as good when the surface resistance is higher than a prescribed high resistance value.Type: GrantFiled: November 13, 2007Date of Patent: November 30, 2010Assignee: Airbus Deutschland GmbHInventor: Juergen Krueger
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Publication number: 20100252306Abstract: A method of enhancing thermal management of an electronic device comprising the steps of; forming an ALOX™ interconnect substrate; taking an electronic device; and interconnecting the electronic device to the interconnect substrate to yield a substantial split of thermal and electrical paths in the interconnect substrate.Type: ApplicationFiled: May 25, 2008Publication date: October 7, 2010Applicant: Micro Components Ltd.Inventors: Uri Mirsky, Shimon Neftin, Lev Furer
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Publication number: 20100147762Abstract: A method of making a membrane assembly is provided. The method comprises forming an inorganic membrane layer disposed on a substrate, and forming a plurality of macropores in the substrate at least in part using anodization. Further, a membrane assembly is provided. The membrane assembly comprises a filtering membrane that is coupled to an anodized substrate comprising a plurality of macropores.Type: ApplicationFiled: December 17, 2008Publication date: June 17, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Anping Zhang, Azar Alizadeh, Joleyn Eileen Balch, Rui Chen, Anthony John Murray, Vicki Herzl Watkins, Oliver Charles Boomhower, Reed Roeder Corderman, Peter Paul Gipp
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Publication number: 20100119867Abstract: A plated steel sheet for cans with excellent secondary adhesion of an organic film and high corrosion resistance is provided, that is, a plated steel sheet for cans, which is a plated steel sheet having a alloy tin layer and a metallic tin layer in sequence from the steel sheet side, wherein a chemical conversion layer comprising tin oxide in an amount of 0.3 to 5.0 mC/cm2 in terms of electricity necessary for reduction and tin phosphate in an amount of 0.5 to 5.0 mg/m2 in terms of P is provided on the metallic tin layer and zirconium(IV) oxide in an amount of 0.2 to 5 mg/m2 in terms of Zr is provided on the chemical conversion layer. A production method thereof is also provided.Type: ApplicationFiled: April 4, 2008Publication date: May 13, 2010Inventor: Hiromitsu Date
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Patent number: 7631769Abstract: A fluid control device has very fine pores with an average diameter not greater than 10 nm and provides a large flux. The fluid control device comprises an anodized alumina film having fine pores and a silicon based micro-porous film having very fine pores and made from an AlSi mixed film and the fine pores and the very fine pores are at least partly linked with each other. The fluid control device is prepared from a film including at least an aluminum layer and an AlSi mixed film by forming an anodized alumina film having fine pores by way of an anodization process for the aluminum layer part and also forming a silicon based micro-porous film having very fine pores containing silicon as principal ingredient by way of an anodization process or etching process for the AlSi mixed film. The fluid control device can be used as filter or ultrafilter film that allows fluid and gas to pass through it.Type: GrantFiled: February 20, 2007Date of Patent: December 15, 2009Assignee: Canon Kabushiki KaishaInventors: Tohru Den, Kazuhiko Fukutani
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Publication number: 20090266418Abstract: The present invention includes a template, an optoelectronic device and methods for making the same. The optoelectronic device includes a first substrate; a first electrode disposed on the first substrate; a first interdigitating, nano-structured charge-transfer molded material (e.g., a polymer) with a first electron affinity disposed on the first electrode; a second interdigitating, nano-structured charge-transfer material (e.g., single molecules, quantum dots, or particles) with a second electron affinity disposed on the first interdigitating, nano-structured charge-transfer material; a second electrode disposed in the second interdigitating, nano-structured charge-transfer material; and a second substrate disposed on the second electrode.Type: ApplicationFiled: February 18, 2009Publication date: October 29, 2009Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMInventors: Wenchuang Hu, Mukti N. Aryal, Fatih Buyukserin, Jinming Gao, Xiao-Mei Zhao
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Publication number: 20090145768Abstract: A process of ceramic coatings on silver or silver-plated articles is developed in order to prevent surface tarnish, which are employed as ornaments on bags, garments or accessories such as necklaces, earrings, etc. Such a process comprises the steps of: forming a beryllium film on the surface of the article by fixing a stainless steel plate to an anode, fixing the silver or silver-plated article to a cathode and plating the surface of the silver-plated article with beryllium in an electrolyte containing beryllium sulfate (BeSO4.4H2O) by an electroplating method; buffing the article coated with the beryllium film; washing and drying the buffed article using a surfactant; forming the resultant ceramic coating by dipping the dried article in a ceramic coating solution which includes 20 to 80 cc of glass water (liquid sodium silicate) No. 1, 5 to 60 g of sodium metasilicate, 5 to 30 g of sodium tungstate, 5 to 10 g of molybdic acid in 1 liter of water; and drying the wetted article.Type: ApplicationFiled: December 5, 2007Publication date: June 11, 2009Inventor: Bok Jin Sa
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Publication number: 20090128997Abstract: An aspect of the invention provides a solid electrolytic capacitor that comprises: an anode formed of a valve metal or an alloy mainly made of a valve metal; a dielectric layer formed on a surface of the anode; a first conducting polymer layer formed on the dielectric layer, the first conducting polymer layer containing a non-ionic surfactant; a second conducting polymer layer formed on the first conducting polymer layer; and a cathode layer formed on the second conducting polymer layer.Type: ApplicationFiled: November 18, 2008Publication date: May 21, 2009Applicant: SANYO ELECTRIC CO., LTD.Inventors: Kazuhito Kikuchi, Kazuhiro Takatani, Mutsumi Yano, Takashi Umemoto, Hiroshi Nonoue
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Publication number: 20090082865Abstract: The invention relates to a bioceramic coated apparatus and method of forming the same. The apparatus may be a medical implant such as, for example, an orthopedic implant or a dental implant. The bioceramic coating is designed to increase tissue and/or bone growth upon implantation of the apparatus. The apparatus has a valve metal substrate having a nanoporous valve metal oxide surface layer. The nanoporous surface layer contains a plurality of nanopores. The nanopores have adsorbed phosphate ions on at least their interior surfaces. A bioceramic coating is formed on the nanoporous surface and anchored into the nanopores. Optionally, the nanopores are formed into a tapered shape in order to increase adhesion to the bioceramic coating.Type: ApplicationFiled: June 27, 2005Publication date: March 26, 2009Applicant: UNIVERSITY OF NEVADA, RENOInventors: Krishnan Selva Raja, Manoranjan Misra, Archana Kar
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Patent number: 7479213Abstract: A plating method is capable of preferentially precipitating a plated film fully and uniformly in trenches and via holes according to a mechanical and electrochemical process, and of easily forming a plated film having higher flatness surface without being affected by variations in the shape of trenches and via holes. The plating method includes a first plating process and a second plating process. The second plating process is performed by filling a plating solution between an anode and a substrate, with a porous member placed in the plating solution, repeatedly bringing the porous member and the substrate into and out of contact with each other, passing a current between the anode and the substrate while the porous member is being held in contact with the substrate.Type: GrantFiled: December 23, 2004Date of Patent: January 20, 2009Assignee: Ebara CorporationInventors: Mizuki Nagai, Hiroyuki Kanda, Keiichi Kurashina, Satoru Yamamoto, Hidenao Suzuki, Koji Mishima, Brett C. Baker-O'Neal, Hariklia Deligianni, Keith Kwietniak
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Patent number: 7479212Abstract: A high-density data storage medium, a method of manufacturing the data storage medium, a high-density data storage apparatus, and methods of writing data on, and reading and erasing data from the data storage medium by using the data storage apparatus are provided. The data storage medium includes a lower electrode, an insulation layer deposited on the lower electrode, a photoelectron emission layer deposited on the insulation layer and having a plurality of protrusions from which photoelectrons are emitted due to collisions between the protrusions and photons, and a dielectric layer deposited on the photoelectron emission layer and storing the photoelectrons emitted from the photoelectron emission layer.Type: GrantFiled: December 18, 2006Date of Patent: January 20, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-bum Hong, In-kyeong Yoo, Ju-hwan Jung
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Publication number: 20080308424Abstract: A magnesium alloy member includes a member main body formed of a magnesium alloy containing aluminum, and an anodic oxidation coating covering at least a portion of the member main body. The anodic oxidation coating includes a porous first layer and a second layer located between the first layer and the member main body and having a higher aluminum content than that of the first layer. The ratio of the thickness of the second layer with respect to the thickness of the anodic oxidation preferably is about 5% to about 20%.Type: ApplicationFiled: June 11, 2008Publication date: December 18, 2008Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Takaharu Suzuki, Junichi Inami, Toshikatsu Koike
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Patent number: 7445679Abstract: Methods to form metal oxide material are described. In one process, an oxide film on a metal material is diffused throughout the metal material to form a preferred uniform metal oxide material. The present invention further relates to products formed by the process. Also, the present invention relates to the use of the products in capacitor anodes and other applications.Type: GrantFiled: May 16, 2003Date of Patent: November 4, 2008Assignee: Cabot CorporationInventors: John W. Koenitzer, Yongjian Qiu
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Publication number: 20080251388Abstract: A method of preparing a highly thermally conductive circuit substrate includes the steps of preparing a metallic substrate, producing an insulated layer on a surface of the metallic substrate, producing an intermediate medium layer on a surface of the insulated layer, and producing an electrically conductive main layer on a surface of the intermediate medium layer.Type: ApplicationFiled: July 10, 2007Publication date: October 16, 2008Applicant: Cosmos Vacuum Technology Corp.Inventors: Hsu-Tan HUANG, Chung-Lin Chou
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Publication number: 20080241517Abstract: Aluminum-plated components of semiconductor material processing apparatuses are disclosed. The components include a substrate and an optional intermediate layer formed on at least one surface of the substrate. The intermediate layer includes at least one surface. An aluminum plating is formed on the substrate, or on the optional intermediate layer. The surface on which the aluminum plating is formed is electrically-conductive. An anodized layer can optionally be formed on the aluminum plating. The aluminum plating or optional the anodized layer comprises a process-exposed surface of the component. Semiconductor material processing apparatuses including one or more aluminum-plated components, methods of processing substrates, and methods of making the aluminum-plated components are also disclosed.Type: ApplicationFiled: March 29, 2007Publication date: October 2, 2008Applicant: Lam Research CorporationInventors: Ian J. Kenworthy, Kelly W. Fong, Leonard J. Sharpless
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Patent number: 7422674Abstract: Provided are electron-emitting devices improved in durability during concentration of an electric field and thus rarely suffering chain discharge breakdown. An electron-emitting device has an electroconductive film, a layer placed on the electroconductive film and containing aluminum oxide as a main component, a pore placed in the layer containing aluminum oxide as a main component, and an electron emitter placed in the pore and containing a material of the electroconductive film, and the electron emitter is porous and is electrically connected to the electroconductive film.Type: GrantFiled: May 27, 2005Date of Patent: September 9, 2008Assignee: Canon Kabushiki KaishaInventors: Nobuhiro Yasui, Tohru Den
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Publication number: 20080121528Abstract: Method of fabricating electronic devices is disclosed. The method includes the steps of forming an anodized layer that has a thickness greater than a desired thickness, and forming an electrically conductive layer on the anodized layer. The method further includes the steps of removing the conductive layer in a selected area to expose the anodized layer, and removing the exposed anodized layer until the anodized layer in the exposed area has the desired thickness.Type: ApplicationFiled: November 27, 2006Publication date: May 29, 2008Inventors: Michael W. Bench, Steven D. Theiss, Grace L. Ho
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Patent number: 7347924Abstract: Metallization is disposed on at least a portion of an electrically nonconductive substrate. Plating is then disposed on the metallization, and an anodized layer of the plating is configured to provide the substrate with an anodized surface. The substrate may be glass or ceramic, and in particular sapphire. The substrate may be optically transmissive, and the metallization and plating may define a window adapted to transmit light through the substrate.Type: GrantFiled: December 24, 2003Date of Patent: March 25, 2008Assignee: IJ Research, Inc.Inventor: Ick Jhin Yoon
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Publication number: 20070289874Abstract: In this method for producing an anti-reflective film, pores are formed on a surface of a polymer molding material to continuously change a refractive index and then reduce reflectance, in which anodic oxidized porous alumina, in which pores having a tapered shape and whose pore diameter continuously changes, are formed by repeating anodic oxidation at about the same formation voltage and pore diameter enlargement treatment, is used as a mold, or a stamper, which is produced by using the anodic oxidized porous aluminum as a mold, is used as a mold.Type: ApplicationFiled: June 14, 2006Publication date: December 20, 2007Applicant: Kanagawa Academy of Science and TechnologyInventors: Hideki Masuda, Kenji Yasui, Yasushi Kawamoto
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Patent number: 7192510Abstract: A fluid control device has very fine pores with an average diameter not greater than 10 nm and provides a large flux. The fluid control device comprises an anodized alumina film having fine pores and a silicon based micro-porous film having very fine pores and made from an AlSi mixed film and the fine pores and the very fine pores are at least partly linked with each other. The fluid control device is prepared from a film including at least an aluminum layer and an AlSi mixed film by forming an anodized alumina film having fine pores by way of an anodization process for the aluminum layer part and also forming a silicon based micro-porous film having very fine pores containing silicon as principal ingredient by way of an anodization process or etching process for the AlSi mixed film. The fluid control device can be used as filter or ultrafilter film that allows fluid and gas to pass through it.Type: GrantFiled: December 11, 2003Date of Patent: March 20, 2007Assignee: Canon Kabushiki KaishaInventors: Tohru Den, Kazuhiko Fukutani
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Patent number: 7090762Abstract: The metal oxide surface coating of an anodized valve metal may be made conductive under certain conditions so that conductive coatings can be electrolytically deposited on the surface of the oxide. When a dry polar aprotic electrolyte solution is used at a reduced temperature and a relatively high field is applied, the oxide ceases to be insulative. The process is reversible, meaning that there is no permanent change in the oxide.Type: GrantFiled: August 5, 2003Date of Patent: August 15, 2006Assignee: Kemet Electronics Corp.Inventors: Terrance B. Tripp, Brian John Melody, John Tony Kinard, David Alexander Wheeler, Duane Earl Stenzinger
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Patent number: 7011737Abstract: An electrical resistive device, including: an array of titania nanotubes open at an outwardly-directed end formed by anodizing at least a portion of a titanium layer; a plurality of palladium (or other noble metal) clusters having been deposited atop the nanotube array; and the nanotube array mechanically supported by an integral support member. The array of titania nanotubes may include a dopant. An exposure of titania nanotube array to radiant energy emitted within a range of frequencies from visible to ultraviolet, in the presence of oxygen, removes a contaminant, if present. The titanium layer may be deposited atop the integral support; or the unique doped titanium layer can be produced, prior to the anodizing thereof, by depositing titanium along with dopant atop the integral support member by a co-deposition process. Also, supported: method(s) of producing the electrical resistive devices.Type: GrantFiled: April 2, 2004Date of Patent: March 14, 2006Assignee: The Penn State Research FoundationInventors: Oomman K. Varghese, Gopal Mor, Maggie Paulose, Craig A. Grimes
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Publication number: 20040173465Abstract: A method for surface treating a titanium-containing metal, comprising the steps of: (a) treating at least a portion of a surface of the titanium-containing metal with an anodic activation in an electrolyte bath; and (b) strike plating at least a portion of the surface of the treated titanium-containing metal with a metallic coating in the same electrolyte bath as in step (a), wherein the titanium-containing metal remains submerged in the electrolyte bath during steps (a) and (b).Type: ApplicationFiled: March 3, 2003Publication date: September 9, 2004Applicant: Com Dev Ltd.Inventors: Florin Burca, John Darmon
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Publication number: 20040149586Abstract: Osteoconductive/osteoinductive titanium/titanium alloy implant comprising an additional element in the titanium oxide, obtained by anodic oxidation. The implant comprises an additional element in the titanium oxide such as calcium, phosphor or sulphur. The invention also relates to a process of producing the implants.Type: ApplicationFiled: December 1, 2003Publication date: August 5, 2004Inventor: Young-Taeg Sul
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Publication number: 20040118695Abstract: The present invention generally relates to a two-coat electrocoating process. More particularly, the present invention relates to a process wherein a substrate is first coated via a cathodic electrodeposition system and a second coat is subsequently applied via an anodic electrodeposition system, and curing the at least two electrodepositable layers simultaneously in a single bake where the primer coating composition is still wet when the second coat is applied.Type: ApplicationFiled: August 26, 2003Publication date: June 24, 2004Inventor: Ding-Yu Chung
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Publication number: 20040094424Abstract: A method for applying a metal coating to graphite structural members, in which a galvanic metal layer is deposited after said graphite structural members have been anodically etched in an alkaline etchant. The metal coating can serve as a basis for solder connections and can be employed for creating electrical contacts or for mechanically fixing the graphite structural member or it can fulfil other demands on the surface (e.g. abrasion resistance).Type: ApplicationFiled: November 13, 2003Publication date: May 20, 2004Applicant: Franz Oberflachentechnik GmbH & Co KGInventor: Wolf-Dieter Franz
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Patent number: 6689268Abstract: A composite material includes a structural carrier layer and a relatively thin metal foil layer separated by a release layer. The release layer, that may be an admixture of a metal such as nickel or chromium and a non-metal such as chromium oxide, nickel oxide, chromium phosphate or nickel phosphate, provides a peel strength for the metal foil layer from the carrier strip that is typically on the order of 0.1 pound per inch to 2 pounds per inch. This provides sufficient adhesion to prevent premature separation of the metal foil layer from the carrier layer, but easy removal of the carrier layer when desired. Typically, the metal foil layer is subsequently bonded to a dielectric and the carrier layer then removed. The metal foil layer is then imaged into circuit features in the manufacture of printed circuit boards and flexible circuits.Type: GrantFiled: April 26, 2001Date of Patent: February 10, 2004Assignee: Olin CorporationInventors: Szuchain Chen, Julius Fister, Andrew Vacco, Nina Yukov, A. James Brock
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Publication number: 20030205480Abstract: A porous layer having a multilayered structure is formed. An Si substrate (102) to be processed is anodized in a first electrolytic solution (141, 151) while being held between an anode (106) and a cathode (104) in an anodizing bath (101). The first electrolytic solution (141, 151) is exchanged with a second electrolytic solution (142, 152). The Si substrate (102) is anodized again, thereby forming a porous layer having a multilayered structure on the Si substrate (102).Type: ApplicationFiled: June 11, 2003Publication date: November 6, 2003Inventors: Kiyofumi Sakaguchi, Nobuhiko Sato
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Publication number: 20030141193Abstract: Methods for anodizing sintered valve metal anodes for use in wet electrolytic capacitors implemented in implantable medical devices (IMDs). The methods generally include immersing a pressed valve metal anode in an anodizing electrolyte and developing an anode-electrolyte system. Subsequently, subjecting the anode-electrolyte system to a potential that is ramped up to a target voltage in a pulsed fashion and delivering voltage potential pulses to the anode. The pulses are preferably decreased in pulse width as the potential increases. The pulse width of the applied pulses is preferably defined by means of a duty, such that the applied pulse duty cycle is substantially 100% initially and declines over the formation time as the formation voltage increases to the target potential to substantially 1.0% or less. The pulses are preferably applied for a hold time following achievement of the target formation potential, as the pulse current declines toward zero current flow.Type: ApplicationFiled: January 28, 2002Publication date: July 31, 2003Applicant: Medtronic, Inc.Inventor: Joachim Hossick-Schott
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Publication number: 20030089616Abstract: A method for surface treatment of a metal base includes the steps of: (a) anodizing the base to obtain a first layer of oxidation film on a surface of the base; (b) removing or covering a first area of the oxidation film; and (c) anodizing the base to obtain a second layer of oxidation film. A second area of the oxidation film is thus formed on the base which is different from the first area of the oxidation film. The second area is either higher or lower than the first area, therefore an anaglyphic decorative effect is obtained on the surface of the base.Type: ApplicationFiled: April 5, 2002Publication date: May 15, 2003Inventor: Che-Yuan Hsu
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Publication number: 20020192486Abstract: A composite material, comprising a carrier strip the carrier strip comprising a first side the first side comprising a substantially uniform roughness, an electrolytically deposited copper foil layer having opposing first and second sides and a thickness of from 0.1 micron to 15 microns and the entire metal foil layer thickness having been deposited from a copper containing alkaline electrolyte, and a release layer effective to facilitate separation of the metal foil layer from the carrier strip disposed between and contacting both the first side of the carrier strip and the second side of the metal foil layer.Type: ApplicationFiled: September 6, 2001Publication date: December 19, 2002Applicant: Olin Corporation, a corporation of the State of VirginiaInventors: Szuchain F. Chen, William L. Brenneman, Andrew Vacco, Nina Yukov
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Patent number: 6475565Abstract: The invention relates to a process for producing a clothing wire which is suitable for fitting to an opening-cylinder base body, wherein a raw wire which is customarily used to produce clothing wire is processed on end to form a wire coil, in which the teeth of the wire are perpendicular to the coil axis and which has a diameter which corresponds to the diameter of the opening-cylinder base body or differs by at most ±5% from the diameter of the opening-cylinder base body, and the wire coil is pushed loosely onto a support device and, together with this device, is introduced into an electroplating unit, the process steps which are customarily used for the chemical deburring of a raw wire and the nickel-diamond coating of a clothed opening cylinder taking place in the electroplating unit, and the clothing wire being removed from the electroplating unit.Type: GrantFiled: October 26, 2000Date of Patent: November 5, 2002Assignee: Elektroschmelzwerk Kempten GmbHInventors: Jörg Lukschandel, Manfred Menge, Jürgen Meyer
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Publication number: 20020100693Abstract: An improved method for forming a copper layer (100). After the copper seed layer (116) is formed, any oxidized copper (118) at the surface is electrochemically reduced back to copper rather than being dissolved. Copper (120) is then electrochemically deposited (ECD) over the intact seed layer (116).Type: ApplicationFiled: January 30, 2002Publication date: August 1, 2002Inventors: Jiong-Ping Lu, David Jay Rose, Linlin Chen
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Patent number: 6372357Abstract: An external component of an endoscope includes an aluminum alloy base member whose surface is subjected to anodic oxidation, and thereafter, is subjected to an electrolytic deposition thereon.Type: GrantFiled: September 21, 2000Date of Patent: April 16, 2002Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Shinji Hayakawa, Rensuke Adachi, Kunitoshi Ikeda, Masanao Abe
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Patent number: 6346184Abstract: The present invention provides a method of producing a zinc oxide thin film in which a current is passed between a conductive substrate immersed in an aqueous solution containing at least zinc ions and carboxylic acid ions, and an electrode as an anode immersed in the aqueous solution to form a zinc oxide thin film on the conductive substrate. This method stabilizes formation of the zinc oxide thin film and improves adhesion between the thin film and the substrate.Type: GrantFiled: May 8, 1998Date of Patent: February 12, 2002Assignee: Canon Kabushiki KaishaInventors: Masafumi Sano, Yuichi Sonoda
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Patent number: 6344127Abstract: The object of the invention is to provide a method for producing a photocatalytic material which consists of a titanium oxide, exhibits a higher photocatalytic activity and has excellent appearances. The above object is attained by the provision of a method for preparing a photo catalytic material by oxidizing the surface of a substrate consisting of titanium or a titanium alloy, the method comprising a step of anodizing the substrate in an electrolyte containing an organic acid and/or a salt of the organic acid and a step of further oxidizing the anodized substrate in an atmosphere.Type: GrantFiled: March 24, 2000Date of Patent: February 5, 2002Inventor: Yoshihisa Itoh
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Publication number: 20010027922Abstract: A composite material includes a structural carrier layer and a relatively thin metal foil layer separated by a release layer. The release layer, that may be an admixture of a metal such as nickel or chromium and a non-metal such as chromium oxide, nickel oxide, chromium phosphate or nickel phosphate, provides a peel strength for the metal foil layer from the carrier strip that is typically on the order of 0.1 pound per inch to 2 pounds per inch. This provides sufficient adhesion to prevent premature separation of the metal foil layer from the carrier layer, but easy removal of the carrier layer when desired. Typically, the metal foil layer is subsequently bonded to a dielectric and the carrier layer then removed. The metal foil layer is then imaged into circuit features in the manufacture of printed circuit boards and flexible circuits.Type: ApplicationFiled: April 26, 2001Publication date: October 11, 2001Inventors: Szuchain Chen, Julius Fister, Andrew Vacco, Nina Yukov, A. James Brock
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Patent number: 6299752Abstract: An anode foil treatment method produces a useful high quality oxide with inherently high capacitance at voltages as high as 750 Volts or more. The anode foil treatment method comprises a series of formation and relaxation steps. Oxide layer formation is performed in a forming mixture that includes a high molecular weight dicarboxylic acid that is made into a salt and a strong base. The concentration of the dicarboxylic acid is carefully monitored and kept within a narrow band. The complex by-product of the dicarboxylic salt created during formation process is kept below a fixed maximum level.Type: GrantFiled: March 10, 1999Date of Patent: October 9, 2001Assignee: Pacesetter, Inc.Inventors: Thomas F. Strange, Timothy R. Marshall
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Patent number: 6280597Abstract: The known flourinated layer has usually a thickness of from 1000 to 3000 angstroms. After the forced oxidation of metal, the forcibly oxidized surface is flourinated. As a result of the preceding forcing oxidation, a 1 &mgr;m or more thick fluorinated layer is formed on the surface of the metal.Type: GrantFiled: September 14, 1998Date of Patent: August 28, 2001Assignee: Showa Denko K.K.Inventors: Kunio Kashiwada, Takanori Kodama, Hiroyasu Taguchi, Satoshi Hirano
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Patent number: 6267861Abstract: A method of non-thickness-limited anodizing for valve metals and alloys which are resistant to the non-thickness-limited growth of anodic oxide, such as niobium and high niobium content alloys. Non-thickness-limited anodic oxide film growth is produced on such valve metals by employing a first glycerine-based electrolyte containing about 1 to about 3 wt % water for the initial production of anodic oxide. After the substrate is anodized using the first electrolyte, it is immersed in a second glycerine-based electrolyte having less than about 0.1 wt % water. The second electrolyte may be produced by allowing water to evaporate from the first electrolyte solution until the solution contains less than about 0.1 wt. % water.Type: GrantFiled: October 2, 2000Date of Patent: July 31, 2001Assignee: Kemet Electronics CorporationInventors: John Tony Kinard, Brian John Melody, David Alexander Wheeler
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Patent number: 6261434Abstract: An electrolyte comprising water, an organic solvent selected from the group consisting of a polyethylene glycol, a polyethylene glycol monomethyl ether and mixtures thereof, and a sufficient amount of alkali metal salt of a weak organic acid, so that the electrolyte has a resistivity below about 250 ohm-cm/80° C. A method for differential anodizing porous valve metal body comprising the steps of: anodizing the bodies in a first electrolyte where the cathode surface is placed within an inch of but not in contact with the anode bodies, rinsing the bodies in deionized water, and re-anodizing the bodies in a second electrolyte, where the first electrolyte comprises water, an organic solvent selected from the group consisting of a polyethylene glycol, a polyethylene glycol monomethyl ether and mixtures thereof, and a sufficient amount of alkali metal salt of a weak organic acid so that the first electrolyte has a resistivity below about 250 ohm-cm/80° C.Type: GrantFiled: October 19, 1999Date of Patent: July 17, 2001Assignee: Kemet Electronics CorporationInventors: Brian John Melody, John Tony Kinard, Philip Michael Lessner
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Patent number: 6231993Abstract: An anodized pressed valve metal powder pellet is described. The anodized pellet is particularly useful as an anode in an electrolytic capacitor having an improved breakdown voltage. The anodized pellet is formed by periodically holding the pellet at a constant voltage and allowing the current to decay over a period of time, or by turning the formation power supply off altogether during the anodization process. Either way provides an opportunity for heated electrolyte to diffuse from the anodized pellet.Type: GrantFiled: September 29, 1999Date of Patent: May 15, 2001Assignee: Wilson Greatbatch Ltd.Inventors: Donald H. Stephenson, Martin D. Cymerman, Barry C. Muffoletto
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Patent number: 6228243Abstract: A new method to synthesize crystalline films, superlattices and multilayered devices based on metallic or semiconductor compounds or alloys in electrolyte media on non-crystalline substrates. An automated sequence of flow, equilibration and underpotential electrodeposition from a single electrolyte comprising the film constituents leads to the synthesis of stoichiometric, epitaxial layers. The invention process is based on a new concept of electrochemical molecular layer epitaxy; it provides a relatively simple, fast and inexpensive method to fabricate a wide range of high quality technological materials, ranging from large-area single phase films to multiple quantum-well structures.Type: GrantFiled: February 8, 1999Date of Patent: May 8, 2001Inventor: Shalini Menezes
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Patent number: 6200692Abstract: The present invention relates to a container for holding high purity isopropyl alcohol (IPA) used in the electronic industry, which extremely dislike the inclusion of metal impurities. The container made of metal for holding high purity IPA, wherein at least the inside surface layer of the container is composed of nickel.Type: GrantFiled: March 20, 1998Date of Patent: March 13, 2001Assignee: Tokuyama CorporationInventors: Seiji Tamura, Hiroyuki Mishima
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Patent number: 6183618Abstract: A process for treating an impregnated electrolytic capacitor anode whereby the anode body is immersed in a liquid electrolytic solution and a voltage is applied to the anode body, whereby a current flows through and repairs flaw sites in the anode body. The liquid electrolytic solution includes an organic solvent comprising at least one of polyethylene glycol, polyethylene glycol monomethyl ether, and polyethylene glycol dimethyl ether. Alternatively, the electrolytic solution includes an organic solvent and an alkali metal phosphate salt. Preferably, the electrolytic solution contains both an alkali metal phosphate salt and an organic solvent comprising at least one of polyethylene glycol, polyethylene glycol monomethyl ether, and polyethylene glycol dimethyl ether.Type: GrantFiled: February 2, 1999Date of Patent: February 6, 2001Assignee: Kemet Electronics CorporationInventors: Brian J. Melody, John T. Kinard, David A. Wheeler
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Patent number: 6143190Abstract: The invention provides a method of producing a through-hole, a substrate used to produce a through-hole, a substrate having a through-hole, and a device using such a through-hole or a substrate having such a through-hole, which are characterized in that: a through-hole can be produced only by etching a silicon substrate from its back side; the opening length d can be precisely controlled to a desired value regardless of the variations in the silicon wafer thickness, and the orientation flat angle, and also regardless of the type of a silicon crystal orientation-dependent anisotropic etchant employed; high productivity, high production reproducibility, and ease of production can be achieved; a high-liberality can be achieved in the shape of the opening end even if temperature treatment is performed at a high temperature for a long time; and a high-precision through-hole can be produced regardless of the shape of a device formed on the surface of a substrate.Type: GrantFiled: November 12, 1997Date of Patent: November 7, 2000Assignee: Canon Kabushiki KaishaInventors: Takayuki Yagi, Junichi Kobayashi, Yasushi Kawasumi, Genzo Momma, Kenji Makino, Kei Fujita, Yasushi Matsuno, Yukihiro Hayakawa, Masahiro Takizawa
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Patent number: 6136176Abstract: Capacitor elements made with a solid polymeric electrolyte show reduced leakage current when reformed at about 60-85% of formation voltage during the impregnation phase between successive layers of polymeric electrolyte.Type: GrantFiled: May 21, 1999Date of Patent: October 24, 2000Assignee: Kemet Electronics CorporationInventors: David Alexander Wheeler, Philip Michael Lessner
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Patent number: 6086742Abstract: The invention concerns a method of producing layered materials for sliding bearings and an electroplating bath for carrying out this method. According to the method, an electroplating bath with a non-ionic wetting agent and a benzene derivative is used for depositing a binary layer on a bronze layer on which the lead- or tin-based binary layer and a molybdenum-based initial layer are deposited galvanically in succession. When the binary layer has been deposited and before the initial layer is deposited, at least one surface layer of the binary layer is anodically activated. The layered material comprises a steel support shell (1) and a cast leaded bronze (2) to which an intermediate layer (13) is applied galvanically. When the layer (3) has been applied galvanically, the surface region (5) is altered by anodic activation, whereupon the molybdenum oxide layer (4) is applied galvanically.Type: GrantFiled: August 21, 1998Date of Patent: July 11, 2000Assignee: Glyco-Metall-Werke, Glyco B.V. & Co. KGInventors: Hans-Ulrich Huhn, Dietmar Wiebach, Klaus Muller
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Patent number: 6063141Abstract: A method for manufacturing a cathode for a molten carbonate fuel cell includes oxidation of a porous precursor electrode and contact with molten carbonate. Following assembly of a layered arrangement containing the precursor electrode, a matrix layer made of molten carbonate, and a porous anode, the precursor electrode is anodically oxidized with a preset curve for the current density, and doped by contact with molten carbonate.Type: GrantFiled: December 18, 1998Date of Patent: May 16, 2000Assignee: MTU Motoren-Und Turbinen-Union Friedrichshafen GmbHInventors: Hartmut Wendt, Hans-Juergen Salge, Manfred Bischoff