Anodizing Patents (Class 205/324)
  • Patent number: 10739879
    Abstract: In various embodiments, bilayers are formed in electronic devices at least in part by anodization of metal-alloy base layers.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: August 11, 2020
    Assignee: H.C. STARCK INC.
    Inventors: Helia Jalili, Francois Dary, Barbara Cox
  • Patent number: 10249434
    Abstract: A capacitor that includes a conductive porous substrate having a porous portion; a dielectric layer on the porous portion and containing an oxygen element and at least metal element; and an upper electrode on the dielectric layer. The porous portion has a path integral value of 1 ?m/?m2 to 16 ?m/?m2, and a porosity of 20% to 90%, and a ratio Z expressed by (1) below is 0.79 or more, Z = O d / M d O r / M r ( 1 ) where Od and Md respectively represent signal intensities of the oxygen element and the metal element when the dielectric layer is analyzed by energy dispersive X-ray spectroscopy (EDS), and where Or and Mr respectively represent signal intensities of the oxygen element and the metal element when a reference material having stoichiometric composition of the oxygen element and the at least one metal element constituting the dielectric layer is analyzed by the EDS.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: April 2, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiromasa Saeki, Mika Takada
  • Patent number: 9758888
    Abstract: Metal surface pretreatments using ionic liquids prior to electroplating are disclosed. The surface treatments include forming an activated metal substrate surface by removing any naturally formed metal oxide layers formed on the surfaces of the metal substrates. According to some embodiments, the surface treatments include exposing the metal substrate to a non-aqueous ionic liquid. In some embodiments, an electrical current is applied to the metal substrate to assist removal of the metal oxide layer. The electrical current can be a pulsed anodic current. After activating the surface, a metal layer can be deposited on the activated surface. In some embodiments, the metal layer is electrodeposited in the same ionic liquid used to form the activated surface. The resultant metal coating is resistant to scratching and peeling.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: September 12, 2017
    Assignee: Apple Inc.
    Inventors: Evgeniya Freydina, Shiyun Ruan, Christopher A. Schuh, Alan C. Lund
  • Patent number: 9465160
    Abstract: A method of manufacturing a layered material stack that includes a plasmonic interface between a plasmonic material and optical waveguide material is disclosed. The method includes providing a substrate layer, disposing a layer of plasmonic material on the substrate layer, depositing a metal constituent of an optical waveguide material directly onto the layer of plasmonic material, and anodizing the metal constituent of the optical waveguide material to form an optically transparent oxide of the metal constituent configured to couple light into the layer of plasmonic material, with the optically transparent oxide of the metal constituent forming an optical waveguide structure.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: October 11, 2016
    Assignee: General Electric Company
    Inventors: Christopher Fred Keimel, John Brian Hewgley, Juan Jose Becerra
  • Patent number: 9359946
    Abstract: An internal combustion engine having an anodic oxidation coating formed on at least a part of a wall surface that faces a combustion chamber, wherein the anodic oxidation coating has voids and nano-holes smaller than the voids; at least part of the voids are sealed with a sealant derived by converting a sealing agent; and at least a part of the nano-holes are not sealed.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: June 7, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki Nishikawa, Takumi Hijii, Akio Kawaguchi, Ryouta Yatsuduka, Fumio Shimizu, Yoshifumi Wakisaka, Hidemasa Kosaka
  • Patent number: 9073009
    Abstract: An air purification system that comprises a substrate, and at least one layer of photocatalysts. The at least one layer of photocatalysts further comprise a plurality of metal clusters.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: July 7, 2015
    Assignee: CARRIER CORPORATION
    Inventors: Thomas Henry Vanderspurt, James A. Davies, Stephen O. Hay, Timothy N. Obee, Susanne M. Opalka, Di Wei
  • Patent number: 9034166
    Abstract: A metal surface treated to have a distinct cosmetic appearance such as an integral layer that is glossy may be used in electronic devices. The surface treatment may include polishing a metal surface, texturing the polished metal surface, polishing the textured surface, followed by anodizing the surface, and then polishing the anodized surface. The metal surface may also be dyed to impart a rich color to the surface.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: May 19, 2015
    Assignee: Apple Inc.
    Inventors: Masashige Tatebe, Howard Bujtor, Jody Akana, Jonathan P. Ive
  • Publication number: 20150132602
    Abstract: A method for coating a component for use in a semiconductor chamber for plasma etching includes providing a component for use in a semiconductor manufacturing chamber, loading the component into a deposition chamber, cold spray coating a metal powder onto the component to form a coating on the component, and anodizing the coating to form an anodization layer.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 14, 2015
    Applicant: Applied Materials, Inc.
    Inventors: Jennifer Y. Sun, Vahid Firouzdor
  • Patent number: 9011668
    Abstract: A method for the antimicrobial provision of implant surfaces with silver, in which the method comprises an anodizing of the implant surface with an electrolyte, in which the electrolyte has a silver-yielding substance. Alternatively, the method comprises a silver implantation or a silver PVD deposition.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: April 21, 2015
    Assignee: Stryker Trauma GmbH
    Inventor: Andreas Speitling
  • Patent number: 8999133
    Abstract: An anodized layer formation method includes: providing an aluminum film provided on a support or an aluminum base; and forming a porous alumina layer which has minute recessed portions by applying a voltage between an anode which is electrically coupled to a surface of the aluminum film or the aluminum base and a cathode which is provided in an electrolytic solution with the surface of the aluminum film or the aluminum base being in contact with the electrolytic solution. The forming of the porous alumina layer includes increasing the voltage to a target value and, before the voltage is increased to the target value, increasing the voltage to a first peak value which is lower than the target value and thereafter decreasing the voltage to a value which is lower than the first peak value. As such, an anodized layer with reduced variation of recessed portions can be formed.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: April 7, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akinobu Isurugi, Kiyoshi Minoura, Hidekazu Hayashi, Kenichiro Nakamatsu
  • Patent number: 8992696
    Abstract: A method of bonding a metal to a substrate involves forming a plurality of nano-features in a surface of the substrate, where each nano-feature is chosen from a nano-pore and/or a nano-crevice. In a molten state, the metal is over-cast onto the substrate surface, and penetrates the nano-features. Upon cooling, the metal is solidified inside the nano-features, where the solidification of the metal forms a mechanical interlock between the over-cast metal and the substrate.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: March 31, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Michael J. Walker, Bob R. Powell, Jr., Aihua A. Luo
  • Publication number: 20150050455
    Abstract: A prototype aluminum mold for stampers that is used to manufacture stampers having a fine irregular surface structure on the surface thereof and containing aluminum and magnesium, wherein the content of magnesium is 0.1% by mass to 3% by mass, the content of silicon is 100 ppm by mass or less, the total content of elements other than aluminum and magnesium is 500 ppm by mass or less, and the number of magnesium silicide particles having an equivalent diameter of 10 nm or more on the surface of the prototype aluminum mold for stampers is 10/1000 ?m2 or less.
    Type: Application
    Filed: March 26, 2013
    Publication date: February 19, 2015
    Inventors: Katsuhiro Kojima, Hiroshi Onomoto, Hiroaki Kita, Kota Shirai, Hiroshi Okada, Kazume Mochizuki
  • Patent number: 8939752
    Abstract: A mold comprising alumina having a microscopic pattern, in which distances between adjacent recesses or salients therein are not longer than wavelength of visible light, formed by anodic oxidation on a surface of an aluminum pre-mold without a rolling mark, wherein height or depth difference at a crystal grain boundary is 300 nm or less.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: January 27, 2015
    Assignees: Mitsubishi Rayon Co., Ltd., Kanagawa Academy of Science and Technology
    Inventors: Yoshihiro Uozu, Eiko Okamoto, Katsuhiro Kojima, Satoshi Sakuma, Hideki Masuda, Takashi Yanagishita
  • Patent number: 8900437
    Abstract: Disclosed is an apparatus and method for forming an oxidation layer on a manifold block for a fuel cell stack, which forms an oxidation layer uniformly over the entire surface of a long and complicated internal flow field of a manifold block. In particular, the apparatus for forming an oxidation layer on a manifold block for a fuel cell stack includes: an electrolyte bath which contains an electrolyte required for the formation of the oxidation layer, an electrode for supplying a required electron flow for the formation of the oxidation layer from a power supply to the manifold block immersed in the electrolyte of the electrolyte bath and to the electrolyte, and an air supply for supplying oxygen to the electrolyte. Even more particularly, the electrode connected to the electrolyte is inserted into each internal flow field of the manifold block to provide an effective electron flow therein.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: December 2, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Wooshin Industrial Co., Ltd.
    Inventors: Duck Whan Kim, Young Bum Kum, Sae Hoon Kim, Jung Han Yu, Chang Jun Lee, Young Hwan Ko
  • Publication number: 20140347821
    Abstract: The invention relates to a method for producing a thermally conductive and electrically insulating link between at least one electronic component (2) and a completely or partially metal radiator (5), in which the electronic component (2) and the radiator (5) form part of an assembly (1) also comprising a printed circuit (4) disposed between the electronic component (2) and the radiator (5), said printed circuit (4) comprising at least one metal layer (8, 9) and a metal insert (13). According to the method, at least one metal surface (11, 12, 15, 16, 17) is anodised and the heat from the electronic component (2) is dissipated through said surface to the radiator (5), said metal surface belonging to one of the following: the electronic component (2), the printed circuit (4) or the radiator (5).
    Type: Application
    Filed: December 10, 2012
    Publication date: November 27, 2014
    Inventors: Larbi Bendani, Mimoun Askeur, Francis Delaporte
  • Patent number: 8888967
    Abstract: A process for creating porous anode foil for use in an electrolytic capacitor of an implantable cardioverter defibrillator is provided. The process includes electrochemical drilling a plurality of etched metal foils in sequence one after the other in a bath containing electrochemical drilling (ECD) solution initially having a pH of less than 5. Alternatively, an etched foil sheet may be passed through the bath in a substantially continuous manner such that a portion of said etched foil sheet is in contact with the ECD solution is electrochemically drilled to generate pores.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: November 18, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Jason Hemphill, Thomas F. Strange
  • Patent number: 8888982
    Abstract: A method for creating an oxide layer having a reduced copper concentration over a surface of an object comprising aluminum and copper for use in a semiconductor processing system. The oxide layer produced using a plasma electrolytic oxidation process has a reduced copper peak concentration, which decreases a risk of copper contamination, and includes magnesium oxides that can be converted to magnesium halide upon exposure to an excited halogen-comprising gas or halogen-comprising plasma to increase the erosion/corrosion resistance of the oxide layer.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: November 18, 2014
    Assignee: MKS Instruments Inc.
    Inventors: Xing Chen, Chengxiang Ji, Chiu-Ying Tai
  • Patent number: 8852359
    Abstract: A method of bonding a metal to a substrate involves forming an oxide layer on a surface of the substrate, and in a molten state, over-casting the metal on the substrate surface. The over-casting drives a reaction at an interface between the over-cast metal and the oxide layer to form another oxide. The other oxide binds the metal to the substrate surface upon solidification of the over-cast metal.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: October 7, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Michael J. Walker, Anil K. Sachdev, Bob R. Powell, Jr., Aihua A. Luo
  • Patent number: 8790503
    Abstract: An anodized layer formation method includes: (a) providing an aluminum base or an aluminum film deposited on a support; anodization step (b) in which a forming voltage is increased to a predetermined first voltage level under a predetermined condition with a surface of the aluminum base or a surface of the aluminum film being kept in contact with an electrolytic solution, and thereafter, the forming voltage is maintained at the first voltage level for a predetermined period of time, whereby a porous alumina layer which has a minute recessed portion is formed; and etching step (c) in which, after step (b), the porous alumina layer is brought into contact with an etching solution, whereby the minute recessed portion is enlarged and a lateral surface of the minute recessed portion is sloped.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: July 29, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Ichiroh Ihara
  • Patent number: 8747641
    Abstract: A method for treating the surface of aluminum components or components comprising aluminum includes anodizing the surface. Anodizing includes introducing at least one pigmenting substance, particularly fully pigmenting substance, into depressions or pores open toward the surface of a comb or pore structure of the surface created by the anodizing process, and/or introducing oxidizable substances into depressions or pores open toward the surface of a comb or pore structure of the surface created by the anodizing process and oxidizing these substances. The method further includes applying a ceramic thin-film coating or siliceous sol-gel coating onto the surface. The ceramic thin-film coating or the sol-gel coating comprises a pigment particularly serving refraction purposes.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: June 10, 2014
    Assignee: Suddeutsche Aluminium Manufaktur GmbH
    Inventors: Hans Binder, Ottmar Binder
  • Patent number: 8728294
    Abstract: An anodizing method in which a workpiece made of aluminum or aluminum alloy is immersed in an electrolytic solution, and treatment is performed in which the application of positive voltage for a very short period of time and the removal of charges are repeated alternately between the workpiece and a cathode arranged in the electrolytic solution includes a step of performing treatment in which the positive voltage application and the charge removal are repeated in a tentative cycle, measuring the control point arrival time of a current waveform at the positive voltage application period, and determining normal positive voltage application time based on the control point arrival time; and a step of performing treatment in which the application of positive voltage and the removal of charges are repeated in a cycle corresponding to the normal positive voltage application time, and forming an anodized film on the surface of the workpiece.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: May 20, 2014
    Assignee: Suzuki Motor Corporation
    Inventors: Tomoharu Yamamoto, Hiroomi Tanaka, Masahiro Fujita
  • Publication number: 20140090983
    Abstract: An electrode structure of the present invention includes: an aluminum electrode which is to be in contact with a surface of an aluminum base; a fixing member for fixing the aluminum electrode on the surface of the aluminum base; an elastic member provided between the fixing member and the aluminum base; a lead wire which is electrically connected to the aluminum electrode at least under a certain condition; and a cover member which is tightly closed with the lead wire penetrating through an opening.
    Type: Application
    Filed: November 25, 2011
    Publication date: April 3, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hidekazu Hayashi, Kiyoshi Minoura, Akinobu Isurugi
  • Publication number: 20140069818
    Abstract: In an anodizing method of aluminum, a tubular object made of aluminum or aluminum alloy is located between a pair of cathodes in an electrolysis solution, and a subsidiary cathode is inserted into the tubular object. The tubular object is anodized in the electrolysis solution to form an anodic oxide coating on an inner surface of the tubular object and on an outer surface of the tubular object. Accordingly, the anodic oxide coating can be formed easily not only on the outer surface of the tubular object but also on the inner surface of the tubular object. Therefore, a thickness difference of the anodic oxide coating between on the outer surface of the tubular object and on the inner surface of the tubular object can be reduced.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 13, 2014
    Applicant: DENSO CORPORATION
    Inventors: Seiji Amakusa, Tomoya Uchida
  • Patent number: 8622223
    Abstract: 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: Grant
    Filed: December 17, 2008
    Date of Patent: January 7, 2014
    Assignee: General Electric Company
    Inventors: Anping Zhang, Azar Alizadeh, Joleyn Eileen Balch, Rui Chen, Anthony John Murray, Vicki Herzl Watkins, Oliver Charles Boomhower, Reed Roeder Corderman, Peter Paul Gipp
  • Patent number: 8591716
    Abstract: A semiconductor substrate with anode pattern is anodized to be shaped into an optical lens. The anodization utilizes an electrolytic solution which etches out oxidized portion as soon as it is formed as a result of the anodization, to thereby develop a porous layer in a pattern in match with the anode pattern. After being removed of the porous layer, the substrate is treated to smooth out minute projections remaining in the top surface of the substrate, thereby obtaining the lens of good transmissivity.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: November 26, 2013
    Assignee: Panasonic Corporation
    Inventors: Yoshiaki Honda, Takayuki Nishikawa, Tomohiro Kamitsu
  • Patent number: 8556088
    Abstract: The present invention is aimed to fabricate nanoporous anodic oxide ceramic membrane tubes with excellent pore characteristics by anodizing metal tubes located in a cylindrical symmetry with respect to a cathode which itself has a cylindrical symmetry. The membrane tubes may have protruded portions acting as supports and joints. The present invention also deals with stacks and bundles consisted of numbers of the anodic oxide ceramic tubes for filter and dialysis applications.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: October 15, 2013
    Assignee: Korea Electrotechnology Research Institute
    Inventor: Dae Yeong Jeong
  • Publication number: 20130264744
    Abstract: The present invention relates to a method for producing m (where, m is an integer of 1 or more) number of molds for nanoimprinting in which anodic alumina having a microrelief structure composed of a plurality of pores is formed on the surface of an aluminum base material, wherein the method has one or more anodic oxidation steps for anodically oxidizing an aluminum base material in an electrolytic solution for each of m number of aluminum base materials, and a difference (X?X0) between the aluminum concentration X in the electrolytic solution and the aluminum concentration X0 in the electrolytic solution immediately prior to the first anodic oxidation step of the first aluminum base material is 1000 ppm or less in all of the anodic oxidation steps.
    Type: Application
    Filed: July 13, 2012
    Publication date: October 10, 2013
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Satoru Ozawa, Katsuhiro Kojima
  • Publication number: 20130256143
    Abstract: A method comprising providing an insert having a portion capable of being oxidized and electrochemically anodizing the portion capable of being oxidized to provide a layer comprising an oxidized material thereon.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 3, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: James G. Schroth, Mark W. Verbrugge
  • Patent number: 8535505
    Abstract: A method for making a metallic cover including the following steps. Drawing an aluminum alloy sheet that has a yield strength in a range from about 80 MPa to about 150 MPa, an elongation ratio in a range from about 15% to about 28%, and a hardness in a range from about 45 HV0.2 to about 70 HV0.2 to form a preformed cover. The preformed cover includes a bottom base and a plurality of side walls, and each of the side wall and the bottom base are connected by a curved-cornered edge. Pressing the curved-cornered edge of the preformed cover into a sharp-cornered edge structure by a forming die. Polishing the preformed cover. Anodizing the polished preformed cover to form the metallic cover.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: September 17, 2013
    Assignees: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Hong-Zhan Yi, Ai-Jun Xu, Lone-Wen Tai, Zi-Li Wu, Jun Dai, Xiao-Bo Yuan
  • Patent number: 8535507
    Abstract: A process for creating porous anode foil for use in an electrolytic capacitor of an implantable cardioverter defibrillator is provided. The process includes electrochemical drilling a plurality of etched metal foils in sequence one after the other in a bath containing electrochemical drilling (ECD) solution initially having a pH of less than 5. Alternatively, an etched foil sheet may be passed through the bath in a substantially continuous manner such that a portion of said etched foil sheet is in contact with the ECD solution is electrochemically drilled to generate pores. Electrochemical drilling is achieved when a current is passed to the foil or portion of the foil sheet in solution.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: September 17, 2013
    Assignee: Pacesetter, Inc.
    Inventors: Ralph Jason Hemphill, Thomas F. Strange
  • Patent number: 8512872
    Abstract: Metal and metal alloys with sealed anodic oxide coatings with at least partial crystallinity are disclosed. Associated articles are correspondingly disclosed. The sealed anodic coatings exhibit steam, superheated steam, alkaline and acidic resistance. The crystalline sealed anodic oxide coating can be prepared by impregnation of pores of a metal or metal substrate with metal precursor species, conversion of the metal precursor species into metal hydroxides, thermal treatment to dry out moisture and to promote phase transformation of the metal hydroxide product into metal oxides solids and bonding with metastable metal oxide substance in the pore structure of the metal or metal alloy substrate, and hydrothermal sealing, to create sealed anodic coating.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: August 20, 2013
    Assignee: Dupalectpa-CHN, LLC
    Inventors: Timothy P. Cabot, John J. Tetrault, Dong-Jin Sung
  • Patent number: 8505744
    Abstract: The present invention is directed to methods of fabricating nanoporous anodic oxide ceramic membrane tubes with excellent pore characteristics by anodizing metal tubes located in a cylindrical symmetry with respect to a cathode which itself has a cylindrical symmetry. The membrane tubes may have protruded portions acting as supports and joints. The present invention also deals with stacks and bundles consisted of numbers of the anodic oxide ceramic tubes for filter and dialysis applications.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: August 13, 2013
    Assignee: Korea Electrotechnology Research Institute
    Inventor: Dae Yeong Jeong
  • Patent number: 8492003
    Abstract: A heat sinking element and a method of treating a heat sinking element are provided. The heat sinking element includes a metal substrate. The metal substrate is mainly composed of aluminium. A surface of the metal substrate has a plurality of micro-nano holes and a diameter of the micro-nano holes is smaller than 300 nm. The method of treating a heat sinking element includes performing an oxidation process and an etching process on the metal substrate so as to form the plurality of micro-nano holes.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: July 23, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Cheng-Chuan Wang, Chia-Ying Yen, Hsin-Hwa Chen
  • Patent number: 8486249
    Abstract: A method for repairing an aluminum part having a worn portion is provided. In one embodiment, the method includes the steps of: (i) producing a first substantially non-porous coating over the worn portion utilizing a cold spray process wherein a powder mixture is propelled against the worn portion of the aluminum part, and (ii) anodizing the aluminum part to grow an aluminum oxide layer overlaying the first substantially non-porous coating. The powder mixture includes aluminum and an alloy media.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: July 16, 2013
    Assignee: Honeywell International Inc.
    Inventors: Bruce Almond, Geoge Golna, Calum Macintyre
  • Patent number: 8475643
    Abstract: To provide an anodic oxidation method, a titanium oxide film manufacturing method and a catalyst carrying method which is suitable, for example, for anodic oxidation of aluminum, titanium and catalyst carrying on the surface of alumite (registered trademark), capable of generating an oxide film at a low cost and rapidly by eliminating the use of a strongly acid or strongly basic electrolytic solution and using a carbonated water as an electrolytic solution, capable of controlling the sealing treatment of oxide film through a simple method, capable of effecting the oxide film dyeing and catalyst carrying rationally and easily, and capable of effecting the catalyst carrying safely and surely without eroding a base material. An object (3) to be treated is electrolyzed in an electrolytic solution received in a treatment vessel (1) serving the object (3) as an anodic electrode. It is an anodic oxidation method in which an oxide film is generated on the surface of the object (3).
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: July 2, 2013
    Inventors: Hideo Yoshida, Kentaro Abe, Kiyohito Sakon
  • Publication number: 20130112567
    Abstract: An apparatus for manufacturing a mold for nanoimprinting and a method of manufacturing a mold for nanoimprinting are provided. The apparatus for manufacturing the mold for nanoimprinting performs an anodic oxidation treatment to an aluminum substrate with an electrolytic solution and is characterized in that at least a material of a surface of a portion contacting with the electrolytic solution is a metal or an alloy thereof, having an eluted amount of 0.2 ppm/cm2 or less per unit area when immersed in 80 ml of the electrolytic solution at room temperature for 450 hours. The method of manufacturing the mold for nanoimprinting is characterized in using the apparatus for manufacturing the mold for nanoimprinting to carry out the anodic oxidation treatment. The manufacturing apparatus and manufacturing method of the invention suppress metal elution into the electrolytic solution during the anodic oxidation treatment.
    Type: Application
    Filed: July 21, 2011
    Publication date: May 9, 2013
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Satoru Ozawa, Masatoshi Kamata, Katsuhiro Kojima, Tomohiro Masaki
  • Patent number: 8431004
    Abstract: A method for making a stamper which has an uneven surface pattern, in which unit structures are arranged in x and y directions at respective periods that are both shorter than the shortest wavelength of an incoming light ray, on the surface of a substrate and satisfies the following Inequality (1): ? ? ? x , y ? min < 1 ni + ni · sin ? ? ? ? ? i max ( 1 ) where ?min is the shortest wavelength of the incoming light ray, ?imax is the largest angle of incidence of the incoming light ray, ni is the refractive index of an incidence medium, ?x is the period of the uneven surface pattern in the x direction, and ?y is the period of the pattern in the y direction. As a result, diffraction of short-wave light components can be reduced in a broad wavelength range.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: April 30, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tokio Taguchi, Shun Ueki, Kozo Nakamura, Kazuhiko Tsuda
  • Patent number: 8425752
    Abstract: Anodized aluminum cookware having an exposed copper base or ring is formed by anodizing the completed vessel using a protective cap to cover most of the copper. The portion of copper that is exposed to the anodizing bath only tarnishes slightly and is preferably polished off after a protective lacquer is applied, creating a clean even margin with the anodized aluminum portion of the vessel.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: April 23, 2013
    Assignee: Meyer Intellectual Properties Limited
    Inventor: Stanley Kin Sui Cheng
  • Patent number: 8419924
    Abstract: [Subject Matter] To provide a method for manufacturing a wiring substrate where rigidity is enhanced in an insulative portion made by oxidizing aluminum. [Solution(s)] Aluminum oxide insulative portion 24 is formed on aluminum plate 20 as shown in FIG. 1(A) through anodic oxidation (FIG. 1(C)). Then, holes (nano-holes) (24h) in aluminum oxide 24 are filled with resin 30 (FIG. 1(E)). Accordingly, the rigidity (strength) of insulative portion 24 will be enhanced and cracking will not occur during heat cycles. Also, the insulation reliability of aluminum oxide will increase, and short circuiting may be prevented at through holes 26 (aluminum portions) separated by aluminum oxide 24.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: April 16, 2013
    Assignee: Ibiden Co., Ltd.
    Inventors: Toru Nakai, Liyi Chen
  • Patent number: 8398841
    Abstract: A metal surface treated to have two anodized layers or regions may be used in electronic devices. The surface treatment may include performing a first anodization process to create a first anodized layer, removing the first anodized layer at select locations, and performing a second anodization process to create a second anodized layer at the select locations. The first and second anodized regions may have different decorative properties, such as color, and different structural properties, such as degree of abrasion resistance. One of the anodization processes may be hard anodization and the other may be standard anodization.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: March 19, 2013
    Assignee: Apple Inc.
    Inventor: Jivan K. Khosla
  • Patent number: 8398830
    Abstract: Disclosed therein are a method and a system for anodizing metals. The anodizing system includes: an electrolytic bath storing electrolyte of a predetermined amount therein; an anode line mounted on an upper portion of the electrolytic bath, the anode line having insulation blocks for dividing the anode line into several sections; a cathode line disposed outside the anode line, the cathode line having insulation blocks mounted correspondingly to the insulation blocks of the anode line for dividing the cathode line into several sections; a chain connected to a driving sprocket and a driven sprocket inside the anode line, the chain having a plurality of transfer blocks; and hangers electrically connected to the anode line and adapted to fixe and support objects to be plated, which are deposited in the electrolyte.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: March 19, 2013
    Assignee: Samwon Altech Co., Ltd.
    Inventor: Chi Ho Son
  • Publication number: 20130032599
    Abstract: A process of hard anodizing or Type III anodizing an aluminum article creates a heat stable, hard anodized, color surface on the exterior of the article. The process includes anodizing the aluminum article to achieve a hard anodized base layer on a surface of the article. A copper layer is deposited after the exterior is hard anodized. A tin layer is deposited after the step of depositing the copper layer.
    Type: Application
    Filed: August 5, 2011
    Publication date: February 7, 2013
    Applicant: Calphalon Corporation
    Inventors: David Charles Musil, Nina Frazier, Lyle Robert Stiles, JR.
  • Patent number: 8362699
    Abstract: Embodiments of the invention provide for large arrays of microcavity plasma devices that can be made inexpensively, and can produce large area but thin displays or lighting sources Interwoven metal wire mesh, such as interwoven Al mesh, consists of two sets of wires which are interwoven in such a way that the two wire sets cross each other, typically at ?ght angles (90 degrees) although other patterns are also available Fabrication is accomplished with a simple and inexpensive wet chemical etching process The wires in each set are spaced from one another such that the finished mesh forms an array of openings that can be, for example, square, rectangular or diamond-shaped The size of the openings or microcavities is a function of the diameter of the wires in the mesh and the spacing between the wires in the mesh used to form the array of microcavity plasma devices.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: January 29, 2013
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: J. Gary Eden, Sung-Jin Park, Andrew J. Price, Jason D. Readle, Clark J. Wagner
  • Publication number: 20130011688
    Abstract: A method to treat a surface of an oxide coated metal substrate. The method comprises providing a metal substrate having an oxide layer, sealing said oxide layer, and cooling said metal substrate to a temperature of ?300° F. or less.
    Type: Application
    Filed: September 29, 2011
    Publication date: January 10, 2013
    Inventor: Michael Lee Beaver
  • Patent number: 8349190
    Abstract: The object of the invention is to provide a method for cleaning circulation water, which reduces the cost of operation and maintenance as much as possible, without a cumbersome cleaning operation such as by detaching electrode plates from an electrolysis cleaning tank and removing scale from inside the tank, and to provide a device used in this method.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: January 8, 2013
    Assignee: Koganei Corporation
    Inventors: Yoshiyuki Taguchi, Takayuki Nakano, Masahito Kato
  • Patent number: 8337936
    Abstract: The present invention proposes a method for manufacturing an implant, in particular an intraluminal endoprosthesis, having a body such that the body has metallic material. To control the degradation in a desired time window, e.g., between four weeks and six months, the following production method is performed: a) preparing the body of the implant, and b) plasma-chemical treatment of at least a portion of the surface of the body in an aqueous solution by applying a plasma-generating electric alternating voltage to the body (5) of the implant, said voltage having a frequency of at least approximately 1 kHz, to create a first layer. The invention also relates to an implant obtainable by such a method.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: December 25, 2012
    Assignee: Biotronik VI Patent AG
    Inventors: Ullrich Bayer, Jan Schettler, Guenter Ewert
  • Patent number: 8313635
    Abstract: Bare aluminum baffles are adapted for resist stripping chambers and include an outer aluminum oxide layer, which can be a native aluminum oxide layer or a layer formed by chemically treating a new or used bare aluminum baffle to form a thin outer aluminum oxide layer.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: November 20, 2012
    Assignee: Lam Research Corporation
    Inventors: Fred D. Egley, Michael S. Kang, Anthony L. Chen, Jack Kuo, Hong Shih, Duane Outka, Bruno Morel
  • Publication number: 20120247961
    Abstract: A metal oxide film suitable for protection of metals, composed mainly of aluminum. A metal oxide film includes a film of an oxide of a metal composed mainly of aluminum, having a thickness of 10 nm or greater, and exhibiting a moisture release rate from the film of 1E18 mol./cm2 or less. Further, there is provided a process for producing a metal oxide film, wherein a metal composed mainly of aluminum is subjected to anodic oxidation in a chemical solution of 4 to 10 pH value so as to obtain a metal oxide film.
    Type: Application
    Filed: May 3, 2012
    Publication date: October 4, 2012
    Applicants: Mitsubishi Chemical Corporation, Tohoku University
    Inventors: Tadahiro Ohmi, Yasuyuki Shirai, Hitoshi Morinaga, Yasuhiro Kawase, Masafumi Kitano, Fumikazu Mizutani, Makoto Ishikawa
  • Publication number: 20120241324
    Abstract: A coated article includes a substrate including a porous surface and an anodic oxidation film. The porous surface defines a plurality of nanopores. The anodic oxidation film is formed on the substrate covering the porous surface by anodic oxidation process. The anodic oxidation film has a plurality of bonding protrusions, and each bonding protrusion is retained in one of the nanopores to improve a binding force between the substrate and the anodic oxidation film.
    Type: Application
    Filed: October 7, 2011
    Publication date: September 27, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd
    Inventors: HSIN-PEI CHANG, WEN-RONG CHEN, HUANN-WU CHIANG, CHENG-SHI CHEN, CHAO-YONG ZHANG
  • Patent number: 8231789
    Abstract: A method of cross-flow filtration using a membrane filter has a feeding a fluid to be filtered across a membrane surface of a porous alumina membrane filter serving as the membrane filter so that the fluid flows parallel to the membrane surface to separate material to be filtered with the porous alumina membrane filter. The porous alumina membrane filter is made of an aluminum anodized film and includes micropores having a degree of ordering as defined by formula (1): Degree of ordering (%)=B/A×100??(1) of at least 50%, a porosity as defined by formula (2): Porosity (%)=C/D×100??(2) of at least 40%, and a percentage of a pore size standard deviation to an average pore size of up to 10%.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: July 31, 2012
    Assignee: FUJIFILM Corporation
    Inventor: Yusuke Hatanaka