Electrolytic Or Barrier Layer Type Patents (Class 427/80)
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Publication number: 20130071555Abstract: A method of manufacturing a thin film capacitor, having: a base electrode; dielectric layers consecutively deposited on the base electrode; an internal electrode deposited between the dielectric layers; an upper electrode deposited opposite the base electrode with the dielectric layers and the internal electrode being interposed therebetween; and a cover layer deposited on the upper electrode, has depositing an upper electrode layer which is to be the upper electrode, and a cover film which is to be the cover layer on the unsintered dielectric film which is to be the dielectric layer, to fabricate a lamination component, and sintering the lamination component.Type: ApplicationFiled: November 13, 2012Publication date: March 21, 2013Applicant: TDK CORPORATIONInventor: TDK CORPORATION
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Publication number: 20130070392Abstract: The invention relates to a process for the production of electrolyte capacitors having a low equivalent series resistance and low residual current for high nominal voltages, electrolyte capacitors produced by this process and the use of such electrolyte capacitors.Type: ApplicationFiled: October 26, 2012Publication date: March 21, 2013Applicant: Heraeus Precious Metals GmbH & Co. KGInventor: Heraeus Precious Metals GmbH & Co. KG
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Publication number: 20130071554Abstract: A method of manufacturing a thin film capacitor, having: a base electrode; dielectric layers consecutively deposited on the base electrode; an internal electrode deposited between the dielectric layers; an upper electrode deposited opposite the base electrode with the dielectric layers and the internal electrode being interposed therebetween; and a cover layer deposited on the upper electrode, has depositing an upper electrode layer which is to be the upper electrode, and a cover film which is to be the cover layer on the unsintered dielectric film which is to be the dielectric layer, to fabricate a lamination component, and sintering the lamination component.Type: ApplicationFiled: November 13, 2012Publication date: March 21, 2013Applicant: TDK CORPORATIONInventor: TDK Corporation
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Publication number: 20130059064Abstract: A method of manufacturing an electrolytic capacitor includes preparing a dielectric film formed on a surface of an anode foil, forming a first conductive polymer layer on a surface of the dielectric film by immersing the anode foil in first dispersion solution including conductive polymer particles and forming a second conductive polymer layer covering the first conductive polymer layer solvent by immersing the anode foil in second dispersion solution including second conductive polymer particles and second solvent. The surface of the anode foil has plural pits formed therein. The second dispersion solution has a pH value farther from 7 than the first dispersion solution does. This configuration can suppress damages to the dielectric film.Type: ApplicationFiled: March 7, 2012Publication date: March 7, 2013Inventors: Ryo Majima, Hitoshi Ishimoto, Tatsuji Aoyama
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Patent number: 8383195Abstract: In a production method for a laminated electronic component, a ceramic base body is formed by stacking a plurality of ceramic layers, and internal electrodes are formed in the ceramic base body. Lead-out portions of the internal electrodes are exposed from side surfaces of the ceramic base body. Belt-shaped external terminal electrodes are formed on the side surfaces by plating so as to be electrically connected to the exposed portions of the internal electrodes. The distance from an end surface to an external terminal electrode closest to the end surface in the ceramic base body is measured. When the measured distance does not correspond to a predetermined reference value, the ceramic base body is removed as being defective.Type: GrantFiled: June 17, 2009Date of Patent: February 26, 2013Assignee: Murata Manufacturing Co., Ltd.Inventor: Atsushi Sakanaka
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Patent number: 8359728Abstract: A method for manufacturing a corrosion sensor includes applying a first layer of non-conductive material to a substrate, writing a conductive material at discrete locations on the non-conductive material, and writing the conductive material at discrete locations on the previously written conductive material. The method further includes applying a second layer of non-conductive material over the conductive material and machining at least a portion of the second layer of non-conductive material to expose at least a portion of the conductive material.Type: GrantFiled: January 6, 2011Date of Patent: January 29, 2013Assignee: General Electric CompanyInventors: Rebecca Evelyn Hefner, Paul Stephen DiMascio
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Publication number: 20130021718Abstract: Technologies are generally described for a porous graphene electrode material is described herein that may incorporate a three-dimensional open-cell graphene structure fabricated via chemical vapor deposition onto a metal foam. After the graphene is deposited, the metal foam may be dissolved, leaving a three-dimensional open-cell graphene structure that may include single or few layer graphene. Pseudo-capacitive materials, such as RuO2, Fe3O4, or MnO2, may be deposited within the pores of the a three-dimensional open-cell graphene structure to form the porous graphene electrode material. The porous graphene electrode material may have a specific capacitance comparable to chemically modified graphene (CMG) electrodes. The porous graphene electrode material may also have a conductivity greater than CMG electrodes of equivalent surface area. Use of the porous graphene electrode material in capacitors may result in siginificant improvements in specific power compared to CMG based capacitors.Type: ApplicationFiled: April 20, 2011Publication date: January 24, 2013Applicant: Empire Technology Development, LLCInventor: Thomas A. Yager
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Patent number: 8354584Abstract: An object of the present invention is to provide an enlarged dye sensitized solar cell which has a short-circuit preventing structure while a distance between a transparent conductive oxide and a counter electrode, that is, a cell gap is shortened. The dye sensitized solar cell includes a transparent conductive oxide which includes a transparent substrate and a conductive metal oxide having a light transmission property; a metal grid which is formed on the transparent conductive oxide; a protective film with which the metal grid is coated; a dye-adsorbed semiconductor thin film which is formed on the transparent conductive oxide in which the metal grid is not formed; and a counter electrode substrate, wherein a short-circuit preventing layer is provided in the counter electrode substrate facing the metal grid, and a width formed by a short side of the short-circuit preventing layer is larger than a width formed by the metal grid and protective layer.Type: GrantFiled: June 25, 2008Date of Patent: January 15, 2013Assignee: Hitachi, Ltd.Inventors: Naoki Yoshimoto, Hiroto Naito
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Publication number: 20130003260Abstract: An electrode for capacitor includes a current collector having conductivity, a protective layer formed on the current collector, an anchor coat layer formed on the protective layer, and a polarizing electrode layer formed on the anchor coat layer. The protective layer contains an oxyhydroxide and the anchor coat layer contains conductive particles.Type: ApplicationFiled: March 28, 2011Publication date: January 3, 2013Applicant: PANASONIC CORPORATIONInventors: Keiichi Kondou, Hideki Shimamoto, Yukihiro Shimasaki, Tomohiro Okuzawa
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Publication number: 20120327560Abstract: The present disclosure is related to hybrid capacitors specifically to PbO2/Activated Carbon hybrid ultracapacitors. The present disclosure is also related to hybrid capacitors specifically to PbO2/Activated Carbon hybrid ultracapacitors with an inorganic thixotropic-gelled-polymeric-electrolyte. The hybrid ultracapacitors of the present disclosure is simple to assemble, bereft of impurities and can be fast charged/discharged with high faradiac-efficiency.Type: ApplicationFiled: July 18, 2012Publication date: December 27, 2012Applicant: INDIAN INSTITUTE OF SCIENCEInventors: Ashok Kumar SHUKLA, Anjan BANERJEE, Musuwathi Krishnamoorthy RAVIKUMAR, Shaik Abdul GAFFOOR
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Patent number: 8289677Abstract: The present invention provides a conductive polymer suspension for providing a conductive polymer material having a high conductivity and a method for producing the same, and in particular, a solid electrolytic capacitor having a low ESR and a method for producing the same. The conductive polymer suspension is produced by: synthesizing a conductive polymer by chemical oxidative polymerization of a monomer giving the conductive polymer by using an oxidant in a solvent containing a dopant consisting of a low-molecular organic acid or a salt thereof; purifying the conductive polymer; and mixing the purified conductive polymer and an oxidant in an aqueous solvent containing a polyacid component.Type: GrantFiled: July 28, 2009Date of Patent: October 16, 2012Assignee: NEC Tokin CorporationInventors: Ryuta Kobayakawa, Tomoki Nobuta, Naoki Takahashi, Yasuhisa Sugawara, Satoshi Suzuki, Toshihiko Nishiyama
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Publication number: 20120256117Abstract: Provided are an electroconductive polymer suspension solution and a method for producing the same, which has excellent adhesion to a substrate and excellent liquid resistance and which can provide an organic material having high electroconductivity. An electroconductive polymer suspension solution of an exemplary embodiment of the invention contains an electroconductive polymer, at least one kind of a water-soluble polyhydric alcohol, and at least one kind of a water-soluble organic substance having two or more functional groups which can be polycondensed with the water-soluble polyhydric alcohol.Type: ApplicationFiled: April 8, 2011Publication date: October 11, 2012Inventors: Yasuhisa SUGAWARA, Tomoki Nobuta, Naoki Takahashi, Yuji Yoshida, Satoshi Suzuki, Yasuhiro Tomioka
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Patent number: 8282987Abstract: 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: GrantFiled: January 31, 2012Date of Patent: October 9, 2012Assignee: Lam Research CorporationInventors: Ian J. Kenworthy, Kelly W. Fong, Leonard J. Sharpless
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Patent number: 8279582Abstract: The present invention provides a conductive polymer suspension for providing a conductive polymer material having a high conductivity and a method for producing the same, and in particular, a solid electrolytic capacitor having a low ESR and a method for producing the same. The conductive polymer suspension can be is produced by: synthesizing a conductive polymer by chemical oxidative polymerization of a monomer giving the conductive polymer by using an oxidant in an aqueous solvent containing a dopant consisting of a low-molecular organic acid or a salt thereof, or a polyacid having a weight average molecular weight of less than 2,000 or a salt thereof.Type: GrantFiled: July 28, 2009Date of Patent: October 2, 2012Assignee: NEC Tokin CorporationInventors: Tomoki Nobuta, Ryuta Kobayakawa, Naoki Takahashi, Yasuhisa Sugawara, Satoshi Suzuki, Toshihiko Nishiyama
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Patent number: 8250745Abstract: A process for manufacturing a single microcircuit into an integrated cochlear electrode array includes securing and supporting a nonconductive film substrate; attaching a metallic ribbon to a surface of the substrate; machining a flat multiconductor microcircuit from the ribbon to produce a flat elongated multiconductor tail portion with spaced outwardly exposed electrode receiving pads, and a flat multiconductor head portion connected to the tail portion and having spaced outwardly exposed attachment pads; laminating the flat microcircuit between the film substrate and an insulating cover; excising the laminated microcircuit from the film substrate with the electrode receiving pads exposed; wrapping the tail portion of the excised laminated microcircuit into a helix with the exposed electrode receiving pads wrapped around the insulating cover; mounting and electrically connecting the ring electrodes on and to the exposed electrode pads; and overmolding the helix tail portion with a polymeric material to readType: GrantFiled: December 18, 2008Date of Patent: August 28, 2012Assignee: Advanced Bionics, LLCInventor: William G. Orinski
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Publication number: 20120212880Abstract: An electrolytic capacitor according to the present invention includes a wound element formed by winding an anode body consisting of a band-shaped metal foil and a dielectric coat provided on the surface of the metal foil and a cathode body consisting of a band-shaped metal foil in the longitudinal direction. The electrolytic capacitor includes a first conductive polymer layer provided on the surface of the anode body. The first conductive polymer layer is provided to be more thickly present on an end portion of the anode body in the width direction than on a central portion of the anode body in the width direction on the surface of the anode body.Type: ApplicationFiled: February 22, 2012Publication date: August 23, 2012Applicants: SAGA SANYO INDUSTRIES CO., LTD., SANYO ELECTRIC CO., LTD.Inventors: Yoshiaki Ishimaru, Takayuki Matsumoto
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Patent number: 8247474Abstract: A base layer is formed on the surface of metal plate, metal pipe, unbaked ceramic sheet, laminated ceramic green sheet, etc., the base layer causing a gelling reaction with inkjet-ink. The base layer improves ink acceptability for low viscosity inks such as inkjet-ink, and prevents oozing, draining, uneven thickness of an ink pattern and a resist pattern. Thus, the present invention enables to use an ink jet process for providing resist patterns for etching, etc., which has to fulfill stringent high precision requirements.Type: GrantFiled: May 2, 2011Date of Patent: August 21, 2012Assignee: Panasonic CorporationInventors: Keiichi Nakao, Yukihiro Shimasaki, Atsushi Iwase, Koji Shimoyama
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Publication number: 20120206860Abstract: A process for preparing a solid electrolytic capacitor comprising application of a non-ionic polyol prior to application of a conducting polymer layer.Type: ApplicationFiled: February 15, 2012Publication date: August 16, 2012Inventors: Qingping Chen, Hong Zhang, Antony P. Chacko, Phillip M. Lessner, Randolph S. Hahn, Yongjian Qiu, Keith R. Brenneman
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Publication number: 20120186980Abstract: Technologies are generally described for method and apparatus for separating ions, such as arsenic, from a fluid, such as water. The apparatus includes a capacitor. The capacitor includes a material having a nanoscale porous structure, such as a plurality of multi-walled carbon nanotubes (MWNTs), and metal oxide nanoparticles, such as magnetite, disposed over the nanoscale porous structure. A portable water purifier employing the capacitor can effectively remove ions from water with a low voltage applied to the capacitor.Type: ApplicationFiled: January 26, 2011Publication date: July 26, 2012Inventors: Sundara Ramaprabhu, Ashish Kumar Mishra
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Publication number: 20120182668Abstract: A solid electrolytic capacitor and manufacturing method, in which an oxidation-resistant coating layer configured to surround the surface of a terminal reinforcing material underlies a capacitor element. The solid electrolytic capacitor includes a capacitor element having a positive polarity internally and having one end to which an anode wire is inserted; a cathode leading-out layer; a pair of terminal reinforcing materials coupled with both bottom sides of the capacitor element; an oxidation resistant coating layer surrounding the surface of the pair of terminal reinforcing materials; a mold part surrounding the outer periphery of the capacitor element, while exposing the other end of the anode wire, the other side of the cathode leading-out layer, and the lower surfaces of the pair of terminal reinforcing materials; and anode and cathode terminals formed on both sides of the mold part and the lower surfaces of the terminal reinforcing materials.Type: ApplicationFiled: January 17, 2012Publication date: July 19, 2012Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jae Kwang KIM, Jun Suk Jung, Chang Sub Song
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Publication number: 20120182667Abstract: A solid electrolytic capacitor includes an anode body, a dielectric coating provided on a surface of the anode body, and a first conductive polymer layer provided on the anode body. The first conductive polymer layer includes a bis(perfluoroalkanesulfonyl)imide anion and an organic solvent having a boiling point of 240° C. or higher.Type: ApplicationFiled: December 29, 2011Publication date: July 19, 2012Applicant: SANYO ELECTRIC CO., LTD.Inventor: Masahiro Ueda
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Patent number: 8213158Abstract: Provided is a solid electrolytic capacitor comprising an anode of a porous body formed of a valve metal or its alloy, a dielectric layer formed on the surface in the inside part of the porous body and on the surface in the outer peripheral part thereof, a conductive polymer layer formed on the dielectric layer, a cathode layer formed on the conductive polymer layer in the outer peripheral part of the porous body, and an anode lead of which one end is embedded inside the anode, wherein the conductive polymer layer in the first region which is in the inside part of the porous body and the periphery around the anode lead as the center is formed of a polypyrrole layer, and the conductive polymer layer in the second region which is the periphery around the first region is formed by laminating a polypyrrole layer on a polyethylenedioxythiophene layer.Type: GrantFiled: September 25, 2008Date of Patent: July 3, 2012Assignee: Sanyo Electric Co., Ltd.Inventors: Kazuhiro Takatani, Mutsumi Yano, Takashi Umemoto, Hiroshi Nonoue
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Publication number: 20120147528Abstract: A dispersion that contains an intrinsically conductive polythiophene formed via poly(ionic liquid)-mediated polymerization is provided. Without intending to be limited by theory, it is believed that a thiophene monomer can polymerize along the chains of a poly(ionic liquid). In this manner, the poly(ionic liquid) may act as a template for polymerization to provide a particle dispersion that is substantially homogeneous and stable. Such dispersions may be employed in an electrolytic capacitor as a solid electrolyte and/or as a conductive coating that is electrical communication with the electrolyte. Regardless, the dispersion may be more easily and cost effectively formed and incorporated into the structure of the capacitor. Moreover, due to the presence of the ionic liquid, the dispersion is conductive and does not require the addition of conventional dopants, such as polystyrene sulfonic acid.Type: ApplicationFiled: December 14, 2010Publication date: June 14, 2012Applicant: AVX CORPORATIONInventors: Martin Biler, Lubomir Kubac, Jiri Akrman
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Publication number: 20120147529Abstract: A solid electrolytic capacitor a solid electrolytic capacitor that includes an anode body, a dielectric overlying the anode body, and a solid electrolyte overlying the dielectric is provided. The capacitor also comprises a conductive polymer coating that overlies the solid electrolyte and includes nanoparticles formed from a poly(3,4-ethylenedioxythiophene) quaternary onium salt.Type: ApplicationFiled: December 14, 2010Publication date: June 14, 2012Applicant: AVX CORPORATIONInventors: Martin Biler, Lubomir Kubac, Radana Becvarikova
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Publication number: 20120147520Abstract: A capacitor structure and a manufacturing method thereof. The capacitor structure includes a first conductor layer, a dielectric layer and a second conductor layer. The first conductor layer has a first metal material and a second metal material. The first metal material is formed with voids and the second metal material is filled in the voids via hot melt. Accordingly, in the first conductor layer, the second metal material is filled into the voids of the first metal material by means of hot melt to bond with the first metal material. In this case, the thermal treatment temperature can be effectively lowered and the electrical conductivity of the capacitor structure can be increased. Also, the strength of the capacitor structure is increased.Type: ApplicationFiled: September 6, 2011Publication date: June 14, 2012Applicant: CAP-TAN TECHNOLOGY CO., LTD.Inventor: Yuan-Wen Liu
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Patent number: 8197886Abstract: The present invention provides a method of manufacturing a solid electrolytic capacitor including a step of forming a conductive polymer layer by chemical oxidization polymerization of a monomer using a solution containing a metal salt of carbon-fused bicyclic sulfonic acid as an oxidizing agent. The molar ratio X of a carbon-fused bicyclic sulfonate ion to a metal ion in the solution is less than the stoichiometric ratio Y of the metal salt of carbon-fused bicyclic sulfonic acid. This is allowed to provide a solid electrolytic capacitor with a sufficiently low equivalent series resistance (ESR) and high heat resistance.Type: GrantFiled: March 14, 2008Date of Patent: June 12, 2012Assignees: Sanyo Electric Co., Ltd., Saga Sanyo Industries Co., Ltd.Inventor: Satoru Yoshimitsu
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Publication number: 20120134073Abstract: A solid electrolytic capacitor that is capable of exhibiting stable electrical properties (e.g., leakage current and ESR) in a wide variety of operational conditions is provided. The capacitor contains an oxidized anode body and a conductive polymer coating overlying the anode body. The conductive polymer coating contains multiple layers formed from a dispersion of pre-polymerized conductive polymer particles. Unlike conventional attempts, the present inventors have surprisingly discovered that capacitors formed from such conductive polymer dispersions can operate at high voltages, and also achieve good electrical performance at relatively high humidity and/or temperature levels. More particularly, the present inventors have discovered that the problem of layer delamination may be overcome by carefully controlling the configuration of the conductive polymer coating and the manner in which it is formed. Namely, the coating contains a first layer that only partially covers the anode body.Type: ApplicationFiled: August 30, 2011Publication date: May 31, 2012Applicant: AVX CORPORATIONInventors: Miloslav Uher, Jan Petrzilek
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Publication number: 20120134074Abstract: A solid electrolytic capacitor having an anode element, a dielectric film covering a surface of the anode element, a conductive polymer layer provided on the dielectric film, and a water-repellent portion provided on the dielectric film not in contact with the conductive polymer layer and containing silicone oil is provided.Type: ApplicationFiled: November 10, 2011Publication date: May 31, 2012Applicant: SANYO ELECTRIC CO., LTD.Inventors: Yousuke Abe, Atsushi Furuzawa
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Publication number: 20120094016Abstract: The present invention provides an electrode material for aluminum electrolytic capacitors that has a high porosity and a high capacitance, and that does not require etching. Specifically, the invention provides an electrode material for aluminum electrolytic capacitors that contains a sintered body of at least one of aluminum and aluminum alloys, the sintered body having a porosity of 35 to 55%.Type: ApplicationFiled: May 25, 2010Publication date: April 19, 2012Applicant: TOYO ALUMINIUM KABUSHIKI KAISHAInventors: Toshifumi Taira, Masashi Mehata
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Publication number: 20120075774Abstract: A method of fabricating a solid electrolytic capacitor of an aspect includes the steps of preparing an anode element with a dielectric layer formed on a surface thereof, forming a solid electrolytic layer on the dielectric layer, forming a carbon layer on the solid electrolytic layer, bringing an aqueous polymer into contact with the carbon layer, and forming a silver paste layer on the aqueous polymer. A method of fabricating a solid electrolytic capacitor and a solid electrolytic capacitor that can be improved in characteristics can thus be obtained.Type: ApplicationFiled: September 19, 2011Publication date: March 29, 2012Applicant: SANYO ELECTRIC CO., LTD.Inventor: Keiko Matsuoka
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Publication number: 20120069492Abstract: A wet electrolytic capacitor that includes a porous anode body containing a dielectric layer, an electrolyte, and a cathode containing a metal substrate that is abrasive blasted is provided. Abrasive blasting may accomplish a variety of different purposes. For example, it may result in a surface that is substantially uniform and macroscopically smooth, thereby increasing the consistency of conductive coatings formed thereon. While possessing a certain degree of smoothness, the abrasive blasted surface is nevertheless micro-roughened so that it contains a plurality of pits. The pits provide an increased surface area, thereby allowing for increased cathode capacitance for a given size and/or capacitors with a reduced size for a given capacitance. A conductive coating that contains a substituted polythiophene is disposed on the micro-roughened surface.Type: ApplicationFiled: September 16, 2010Publication date: March 22, 2012Applicant: AVX CORPORATIONInventors: Martin Biler, John Galvagni, Dirk H. Dreissiig, Zebbie Lynn Sebald, Frantisek Priban
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Publication number: 20120069491Abstract: A technique for forming a cathode of a wet electrolytic capacitor is provided. The cathode contains a metal substrate having a roughened surface and a conductive coating that contains a substituted polythiophene. The degree of surface contact between the conductive coating and the roughened surface is enhanced in the present invention by selectively controlling the manner in which the conductive coating is formed. More particularly, the conductive coating is formed by applying a precursor solution to the roughened surface that includes both a precursor thiophene monomer and an oxidative catalyst. Contrary to techniques in which either the monomer or catalyst is applied separately and initially contacts the metal surface, the presence of the monomer and catalyst within the same solution allows polymer chains to grow immediately adjacent to the surface of the metal substrate and within the pits.Type: ApplicationFiled: July 28, 2011Publication date: March 22, 2012Applicant: AVX CORPORATIONInventor: Martin Biler
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Patent number: 8136220Abstract: A process for the manufacture of small sensors with reproducible surfaces, including electrochemical sensors. One process includes forming channels in the surface of a substrate and disposing a conductive material in the channels to form an electrode. The conductive material can also be formed on the substrate by other impact and non-impact methods. In a preferred embodiment, the method includes cutting the substrate to form a sensor having a connector portion and a transcutaneous portion, the two portions having edges that define one continuous straight line.Type: GrantFiled: October 30, 2007Date of Patent: March 20, 2012Assignee: Abbott Diabetes Care Inc.Inventors: James Say, Michael F. Tomasco, Adam Heller, Yoram Gal, Behrad Aria, Ephraim Heller, Phillip John Plante, Mark S. Vreeke
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Publication number: 20120063063Abstract: A process for forming a solid electrolytic capacitor and an electrolytic capacitor formed by the process. The process includes: providing an anode wherein the anode comprises a porous body and an anode wire extending from the porous body; apply a thin polymer layer onto the dielectric, and forming a dielectric on the porous body to form an anodized anode; applying a first slurry to the anodized anode to form a blocking layer wherein the first slurry comprises a first conducting polymer with an median particle size of at least 0.05 ?m forming a layer of crosslinker on the blocking layer; and applying a layer of a second conducting polymer on the layer of crosslinker.Type: ApplicationFiled: September 14, 2011Publication date: March 15, 2012Applicant: Kemet Electronics CorporationInventors: Yongjian Qiu, Randolph S. Hahn, Kristen Key, Qingping Chen
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Publication number: 20120057275Abstract: The invention relates to a process for producing electrolytic capacitors with low equivalent series resistance, low residual current and high thermal stability, which consist of a solid electrolyte and an outer layer comprising conjugated polymers, to electrolytic capacitors produced by this process and to the use of such electrolytic capacitors.Type: ApplicationFiled: February 4, 2010Publication date: March 8, 2012Applicant: H.C. Starck Clevios GmbHInventors: Matthias Intelmann, Klaus Wussow, Udo Merker
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Patent number: 8117734Abstract: A process for the manufacture of small sensors with reproducible surfaces, including electrochemical sensors. One process includes forming channels in the surface of a substrate and disposing a conductive material in the channels to form an electrode. The conductive material can also be formed on the substrate by other impact and non-impact methods. In a preferred embodiment, the method includes cutting the substrate to form a sensor having a connector portion and a transcutaneous portion, the two portions having edges that define one continuous straight line.Type: GrantFiled: October 30, 2007Date of Patent: February 21, 2012Assignee: Abbott Diabetes Care Inc.Inventors: James Say, Michael F. Tomasco, Adam Heller, Yoram Gal, Behrad Aria, Ephraim Heller, Phillip John Plante, Mark S. Vreeke
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Patent number: 8092771Abstract: The present invention provides a process for producing a nitrogen-containing carbon material, comprising a first step of subjecting azulmic acid to a first heat treatment in an oxygen-containing gas atmosphere, thereby preparing a heat-treated product, and a second step of subjecting the heat-treated product to a second heat treatment in an inert gas atmosphere.Type: GrantFiled: March 27, 2008Date of Patent: January 10, 2012Assignee: Asahi Kasei Chemicals CorporationInventor: Hidenori Hinago
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Publication number: 20110311718Abstract: Disclosed is a method of making a thin-film dielectric, comprising providing a base metal foil, forming a barium titanate-based dielectric precursor layer over a base metal foil, pre-annealing the dielectric precursor layer and base metal foil, rapidly heating the pre-annealed dielectric precursor layer from a temperature of less than 530° C. to an annealing temperature of more than 800° C. in less than 15 seconds; and annealing the dielectric to form a crystalline barium titanate-based dielectric on the base metal foil, wherein the crystalline barium titanate-based dielectric has grains with an average grain size that is greater or equal to 50 nanometers. Also disclosed is a method of making a capacitor comprised of the thin-film dielectric formed on a base metal foil according to the method described above with a second conductive layer formed over the dielectric.Type: ApplicationFiled: December 15, 2010Publication date: December 22, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Cengiz Ahmet Palanduz, Allan Beikmohamadi, Juan Carlos Figueroa, David Ross McGregor, Damien Francis Reardon, Richard Ray Traylor
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Patent number: 8075993Abstract: Unique PTFE fabric and laminate structures, and methods for making the same, are described. Particularly, the invention comprises a laminate of a fabric comprising a plurality of PTFE fibers overlapping at intersections, wherein at least a portion of the intersections have PTFE masses extending from at least one of the overlapping PTFE fibers, and which lock the overlapping PTFE fibers together, bonded to a membrane by at least said PTFE masses. Such reinforced membranes exhibit exceptionally high bond strength, a particularly valuable attribute in applications in which durability is important.Type: GrantFiled: August 6, 2009Date of Patent: December 13, 2011Assignee: Gore Enterprise Holdings, Inc.Inventors: Norman Ernest Clough, Sarah E. Fram
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Patent number: 8071156Abstract: A hydrophilic ceramic coating is formed on an endoprosthesis preform. The hydrophilic ceramic coating is porous and can store nano-sized drug particles.Type: GrantFiled: March 4, 2009Date of Patent: December 6, 2011Assignee: Boston Scientific Scimed, Inc.Inventors: Jan Weber, Torsten Scheuermann
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Publication number: 20110286151Abstract: A method for producing a solid electrolyte is disclosed, which comprises the steps of applying a solution containing a five-membered heterocyclic compound as a polymerizable monomer on a substrate surface, and polymerizing the applied monomer to give a solid electrolyte comprised of an electrically conductive polymer, wherein the monomer-containing solution contains the polymerizable monomer and at least one polymerizable compound selected from a dimer of the monomer and a trimer of the monomer, at a proportion satisfying the equation: A/(B+C)=100-1,000,000 where A: concentration of the polymerizable monomer, B: concentration of the dimmer in terms of the concentration of its monomer, and C: concentration of the trimer in terms of the concentration of its monomer. In another aspect, a method is disclosed wherein a solution of a compound having a thiophene skeletal structure, which solution has a light absorbance of 1.5-10 at 300-340 nm, is applied on a substrate surface and polymerized.Type: ApplicationFiled: December 15, 2006Publication date: November 24, 2011Applicant: MURATA MANUFACTURING CO., LTD.Inventor: Yoshihiro Saida
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Patent number: 8049948Abstract: This invention provides a novel process for producing an electrochemical display element, which can easily form a white scattering layer between opposed electrodes, has a high level of suitability for production, and has high stability after long-term use. The production process is characterized in that a film containing a white scattering material and a polymeric binder is formed on at least one electrode in opposed electrodes, the other electrode is disposed so as to face the electrode with film formed thereon, a low-viscosity electrolyte is poured into a space between the opposed electrodes, and the polymeric binder is dissolved in or swollen in the electrolyte to form a gel-like electrolyte layer containing the white scattering material and the polymeric binder within the space.Type: GrantFiled: June 3, 2008Date of Patent: November 1, 2011Assignee: Konica Minolta Holdings, Inc.Inventors: Takeshi Hakii, Tomoo Izumi
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Publication number: 20110242730Abstract: A solid state energy storage device has two electrodes, a membrane separator and a solid electrolyte having a substantially solid solvent, a salt and a mediator. The energy storage device stores electric charge by both Faradaic and non-Faradaic systems. The energy storage device may include activated carbon mixed with the electrolyte and sonicated to provide connection between the activated carbon and the mediator. The energy storage device is hot pressed to increase conductivity. The two electrodes may be asymmetric in amount of reduced and oxidized species of mediator.Type: ApplicationFiled: March 31, 2010Publication date: October 6, 2011Inventors: Xiangyang ZHOU, Juanjuan ZHOU, Azzam N. MANSOUR
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Publication number: 20110223480Abstract: The present invention refers to a nanostructured material comprising nanoparticles bound to its surface. The nanostructured material comprises nanoparticles which are bound to the surface, wherein the nanoparticles have a maximal dimension of about 20 nm. Furthermore, the nanostructured material comprises pores having a maximal dimension of between about 2 nm to about 5 ?m. The nanoparticles bound on the surface of the nanostructured material are noble metal nanoparticles or metal oxide nanoparticles or mixtures thereof. The present invention also refers to a method of their manufacture and the use of these materials as electrode material.Type: ApplicationFiled: September 7, 2009Publication date: September 15, 2011Inventors: Tsyh Ying Grace Wee, Nopphawan Phonthammachai, Madhavi Srinivasan, Subodh Mhaisalkar, Yin Chiang Freddy Boey
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Publication number: 20110182002Abstract: The present invention provides a conductive polymer suspension for providing a conductive polymer material having high conductivity and a method for producing the same, and particularly provides a solid electrolytic capacitor having low ESR and a method for producing the same. In an emulsion comprising a dopant of a low molecular organic acid or a salt thereof, obtained by emulsifying a monomer providing a conductive polymer, using a nonionic surfactant, in a water, the monomer is subjected to chemical oxidative polymerization, using an oxidant, to synthesize a conductive polymer. The obtained conductive polymer is purified, and then, the purified conductive polymer and an oxidant are mixed in an aqueous solvent containing a polyacid component to produce a conductive polymer suspension.Type: ApplicationFiled: January 25, 2011Publication date: July 28, 2011Applicant: NEC TOKIN CORPORATIONInventors: Naoki TAKAHASHI, Tomoki NOBUTA, Yasuhisa SUGAWARA, Yuji YOSHIDA, Satoshi SUZUKI, Yasuhiro TOMIOKA
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Publication number: 20110171366Abstract: A capacitor manufacturing method that enables a capacitor having a high withstand voltage, a high electrostatic capacitance and a satisfactorily small ESR to be manufactured simply and at a high level of productivity. In the capacitor manufacturing method, a film-formation treatment of applying a conductive polymer solution containing a ?-conjugated conductive polymer, a polyanion and a solvent to the dielectric layer side of a capacitor substrate having a dielectric layer formed on the surface of an anode, and then performing drying to form a conductive polymer film, is performed at least twice, and the conductive polymer solution used in at least one film-formation treatment among the second film-formation treatment and subsequent film-formation treatments is a high-viscosity solution having a higher viscosity than the conductive polymer solution used in the first film-formation treatment.Type: ApplicationFiled: October 2, 2009Publication date: July 14, 2011Inventors: Tailu Ning, Hironao Fujiki, Kazuyoshi Yoshida, Michiko Shingai
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Publication number: 20110157777Abstract: A method for producing an integrated device including a capacitor. The method includes the steps of providing a functional substrate including functional circuits of the integrated device, forming a first conductive layer including a first plate of the capacitor on the functional substrate, forming a layer of insulating material including a dielectric layer of the capacitor on a portion of the first conductive layer corresponding to the first plate, forming a second conductive layer including a second plate of the capacitor and functional connections to the functional circuits on a portion of the layer of insulating material corresponding to the dielectric layer, forming a protective layer of insulating material covering the second plate and the functional connections, forming a first contact for contacting the first plate, and forming a second contact and functional contacts for contacting the second plate and the functional connections, respectively, through the protective layer.Type: ApplicationFiled: December 20, 2010Publication date: June 30, 2011Applicant: STMicroelectronics S.r.I.Inventor: Alessandro Dundulachi
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Publication number: 20110159312Abstract: A fluid dispersion obtained by mixing oxide particles and water is sprayed to a raw aluminum foil from a direction opposite to a travelling direction of the raw aluminum foil while the raw aluminum foil is allowed to travel. In this way, a roll-pressed mark of the raw aluminum foil is eliminated, and thus aluminum foil for aluminum electrolytic capacitor electrode is produced. Pyramidal-shaped recesses each having an acute angle tip are present all over a surface of the aluminum foil.Type: ApplicationFiled: November 23, 2010Publication date: June 30, 2011Applicant: PANASONIC CORPORATIONInventors: Masami Tsubaki, Mitsuhisa Yoshimura, Hayato Kato, Katsuyoshi Shingu, Tatsushi Ota, Kazuo Fujiwara
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Patent number: 7968190Abstract: Unique PTFE fabric structures, and methods for making same, are described which comprise a plurality of PTFE fibers overlapping at intersections, at least a portion of the intersections having PTFE masses which mechanically lock the overlapping PTFE fibers.Type: GrantFiled: December 19, 2008Date of Patent: June 28, 2011Assignee: Gore Enterprise Holdings, Inc.Inventor: Norman Ernest Clough
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Publication number: 20110128665Abstract: A ceramic capacitor having a ceramic dielectric layer positioned between a first electrode layer and a second electrode layer and methods of manufacturing the same are provided. The ceramic dielectric layer includes a niobium doped barium titanate, a sodium bismuth titanate, and barium zirconate. The niobium doped barium titanate is present in an amount such that the ceramic dielectric layer includes from about 5% by weight to about 50% by weight barium titanate and from about 0.1% by weight to about 2% by weight niobium. The sodium bismuth titanate is present in the ceramic dielectric layer in an amount from about 25% by weight to about 75% by weight, and the barium zirconate is present in an amount from about 5% by weight to about 30% by weight.Type: ApplicationFiled: November 30, 2009Publication date: June 2, 2011Applicant: AVX CORPORATIONInventor: Craig W. Nies