Patents Examined by Edna Wong
  • Patent number: 11396712
    Abstract: Provided is a manufacturing method of a surface-treated Zn—Ni alloy electroplated steel sheet, the method comprising the steps of: preparing a Zn—Ni alloy electroplated steel sheet including a steel sheet and a Zn—Ni alloy-plated layer with an Ni content of 5-20 wt % (S1); preparing an alkaline electrolyte solution in which 4-250 g/L of potassium hydroxide (KOH) or sodium hydroxide (NaOH) or both combined are added in distilled water (S2); and inside the alkaline electrolyte solution, placing the Zn—Ni alloy electroplated steel sheet as an anode and installing another metal sheet as a cathode, and applying 2-10 V of an alternating or direct current to conductor electrochemical etching such that a 3-point average value of the arithmetic average roughness (Ra) of the surface of the Zn—Ni alloy electroplated steel sheet reaches 200-400 nm, thereby producing a surface-treated electroplated steel sheet (S3).
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: July 26, 2022
    Assignee: POSCO
    Inventors: Kang-Min Lee, Hye-Jin Yoo, Je-Hoon Baek, Chang-Se Byeon, Jung-Su Kim
  • Patent number: 11383315
    Abstract: A method for plating a stainless steel substrate is provided. According to one embodiment, the method comprises sandblasting at least one joint surface of a stainless steel substrate and treating the joint surface of the stainless steel substrate with an aqueous solution (acid bath) which contains sulfuric acid, nitric acid and hydrofluoric acid. The stainless steel substrate is then rinsed with hydrochloric acid. The method further includes galvanic deposition of a nickel plating on the joining surface of the stainless steel substrate and the subsequent deposition of a tin layer on the nickel-coated joining surface of the stainless steel substrate.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: July 12, 2022
    Inventors: Lothar Zapf, Natalia Ankuda, Manfred Reuther
  • Patent number: 11365489
    Abstract: A method for manufacturing an electroplated steel sheet by continuously performing electroplating on a steel sheet, the method including disposing a slit gas nozzle having an ejection port having a width wider than a width of the steel sheet in a width direction of the steel sheet on a side of an exit of an electroplating cell for the steel sheet to pass through, and ejecting a gas through the slit gas nozzle toward the steel sheet.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: June 21, 2022
    Assignee: JFE Steel Corporation
    Inventors: Gentaro Takeda, Yoshimichi Hino, Soshi Yoshimoto, Hideyuki Takahashi
  • Patent number: 11359299
    Abstract: The present disclosure provides a manufacturing method of indium tin oxide, including: providing a first electrolyte including choline chloride, urea, indium chloride, boric acid, and ascorbic acid; disposing a workpiece, wherein at least a part of the workpiece is in contact with the first electrolyte; heating the first electrolyte to 60° C.-95° C.; applying a first operating current to electroplate indium onto the workpiece; providing an second electrolyte including choline chloride, urea, tin chloride, boric acid, and ascorbic acid; disposing the indium-coated workpiece, wherein at least a part of the workpiece is in contact with the second electroplate; heating the second electroplate to 60° C.-95° C.; applying a second operating current to electroplate tin onto the workpiece; and annealing the indium and tin on the workpiece to form indium tin oxide in an oxygen environment.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: June 14, 2022
    Assignee: Ming Chi University of Technology
    Inventors: Kun-Cheng Peng, Chi-Ting Chung, Chun-Ying Lee, Ruei-You Liou, Yi-Xian Li
  • Patent number: 11352292
    Abstract: The present invention is directed to a method for preparing a coated optical article including providing a non-conductive substrate; forming a conductive coating layer over the substrate; electrodepositing a first electrodepositable coating composition over the conductive coating layer to form a first electrodeposited inorganic coating layer; and electrodepositing a second electrodepositable coating composition over the first electrodeposited coating layer to form a second electrodeposited inorganic coating layer thereover, thereby forming a multi-layer antireflective inorganic coating over the conductive coating layer. Each of the first electrodepositable coating composition and the second electrodepositable coating composition is different one from the other, and each includes a sol prepared from a composition of a metal oxide precursor and protic acid such that each coating composition is hydrolyzed. Coated optical articles are also provided.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: June 7, 2022
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Nadine Kraut, Kevin Sylvester, Nathan Silvernail, Brian C. Okerberg, Charles R. Hickenboth
  • Patent number: 11352705
    Abstract: Processes and systems for oxidation of a hydrocarbon reactant to generate an oxidized hydrocarbon product may include: contacting a water oxidation electrocatalyst with the hydrocarbon reactant and water in the presence of a non-aqueous solvent; wherein an anodic bias is applied to the water oxidation electrocatalyst, thereby generating the oxidized hydrocarbon product; and wherein the water oxidation electrocatalyst comprises one or more transition metals other than Ru. Optionally, the water is provided in the non-aqueous solvent at a concentration less than or equal to 0.5 vol. %. Optionally, the magnitude of the anodic bias is selected to generate the oxidized hydrocarbon product characterized by selected product distribution.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: June 7, 2022
    Assignee: California Institute of Technology
    Inventors: Bryan M. Hunter, Harry B. Gray
  • Patent number: 11346001
    Abstract: An example method of coating a substrate involves cleaning the substrate and, after cleaning the substrate, sensitizing the substrate using a sensitizing solution including tin chloride and hydrochloric acid. The method also involves, after sensitizing the substrate, activating the substrate in an activating solution including palladium chloride and hydrochloric acid. Further, the method involves subsequently neutralizing the substrate using a neutralizing solution including ammonium hydroxide. Still further, the method involves, after neutralizing the substrate, depositing an electroless nickel layer on the substrate. The method may then involve depositing an electrolytic nickel layer on top of the electroless nickel layer, and depositing an outer layer of metallic material, ceramic material, polymeric material, or any combination thereof on top of the electrolytic nickel layer.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: May 31, 2022
    Assignee: The Boeing Company
    Inventor: Antonio Paesano
  • Patent number: 11339492
    Abstract: The present invention relates to a method for the galvanic deposition of zinc and zinc alloy coatings from an alkaline coating bath with a reduced degradation of organic bath additives. An electrode that contains metallic manganese and/or manganese oxide and is insoluble in the bath is hereby used as an anode. The electrode is produced from metallic manganese or an alloy comprising at least 5% by weight of manganese, or from an electrically conductive substrate and a metallic manganese and/or manganese oxide-containing coating applied thereto, or from a composite material, wherein the coating and the composite material comprise at least 5% by weight of manganese. The method according to the invention is particularly suitable for the galvanic deposition of zinc-nickel alloy coatings from alkaline zinc-nickel baths since the formation of cyanides can be very effectively inhibited.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: May 24, 2022
    Assignee: Dr.-Ing. Max Schlötter GmbH & Co. KG
    Inventors: Volker Wohlfarth, Ralph Krauss, Michael Zöllinger
  • Patent number: 11319632
    Abstract: Disclosed is a surface anti-corrosion treatment method for stainless steel. The method comprises the following steps: (1) performing chemical de-oiling and alkaline corrosion treatments on the surface of stainless steel by using a sodium hydroxide solution and a solution containing an alkaline corrosion active agent, and then washing with water; (2) performing, by using an oxidation solution, an oxidation treatment on the surface of the stainless steel treated in step (1), and then washing with water; (3) using the surface of the stainless steel treated in step (2) as a cathode and soaking same in an electrolyte for electrolysis, and then washing with water; and (4) placing the surface of the stainless steel treated in step (3) at a temperature of 50° C.-60° C. under a humidity of 60%-70%, and performing a hardening treatment. Also disclosed are the use of the treatment method in the treatment of a stainless steel part and a stainless steel part obtained after the treatment by means of the treatment method.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: May 3, 2022
    Inventor: Chao Chen
  • Patent number: 11293107
    Abstract: Electrochemical devices, such as membrane electrode assemblies and electrochemical reactors, are described herein, as well as and methods for the conversion of reactants such as carbon dioxide to value-added products such as ethanol. In certain aspects, the membrane electrode assemblies are configured to allow for distributed pressure along the cathodic side of a membrane electrode assembly is described. The pressure vessel acts as a cathode chamber, both for the feed of reactant carbon dioxide as well as collection of products. The designs described herein improves the safety of high pressure electrochemical carbon dioxide reduction and allows for varied pressures to be used, in order to optimize reaction conditions. Configurations optimized for producing preferred products, such as ethanol, are also described.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: April 5, 2022
    Inventor: Stafford Wheeler Sheehan
  • Patent number: 11267796
    Abstract: The invention is directed to the to the electrochemical preparation of 2,5-furandicarboxylic acid (FDCA) from 5-hydroxymethylfurfural (HMF) by electrochemical oxidation, comprising a first oxidation step of oxidizing HMF to 5-hydroxymethyl-2-furan-carboxylic acid (HMFCA) in an electrochemical cell, subsequently a first isolation step of isolating HMFCA, followed by a second oxidation step of HMFCA to FDCA.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: March 8, 2022
    Assignee: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek TNO
    Inventors: Marc Crockatt, Roel Johannes Martinus Bisselink, Roman Latsuzbaia, Cornelis Petrus Marcus Roelands, Earl Lawrence Vincent Goetheer
  • Patent number: 11225725
    Abstract: A method for producing aluminum includes: a dissolution step of dissolving a hydrate containing Al in water to prepare an aqueous solution that contains Al ions; an extraction step of bringing an organic phase that is composed of an extractant into contact with an aqueous phase that is composed of the aqueous solution to extract the Al ions in the aqueous phase into the organic phase; and an electrodeposition step of electrolyzing the organic phase as an electrolytic solution to electrodeposit metallic Al onto a surface of a cathode from the Al ions in the electrolytic solution.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: January 18, 2022
    Inventors: Junji Nunomura, Yukio Honkawa, Yoichi Kojima, Mikito Ueda
  • Patent number: 11214882
    Abstract: The present invention is related to an acidic zinc or zinc-nickel alloy electroplating bath for depositing a zinc or zinc-nickel alloy layer and a method for zinc or zinc-nickel alloy electroplating making use of such an electroplating bath.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: January 4, 2022
    Assignee: Atotech Deutschland GmbH
    Inventors: Michal Kaczmarek, Zdenek Starkbaum, Sebastian Hahn, Ercan Karapinar
  • Patent number: 11193212
    Abstract: Provided is a synthesis method comprising a first step of producing a carbonate compound from carbon monoxide and an alcohol-based compound at an anode of a first electrochemical cell comprising a cathode and the anode, and a second step of synthesizing a first product by a dealcoholization reaction of the carbonate compound, wherein an alcohol-based compound eliminated in the second step is recycled in the first step.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: December 7, 2021
    Inventors: Naohiro Fujinuma, Kenichi Shinmei
  • Patent number: 11181502
    Abstract: While an insulating film having a near-field light generating element placed thereon is being irradiated with light in an electrolytic solution, or after the film that has been irradiated with light is disposed in the electrolytic solution, a first voltage is applied between the two electrodes installed in the electrolytic solution across the film, a second voltage is then applied between the two electrodes, and a value of a current that flows between the two electrodes due to the application of the second voltage is detected. This procedure is stopped when the current value reaches or exceeds a pre-set threshold value, whereby a hole is formed at a desired location in the thin-film.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: November 23, 2021
    Assignee: Hitachi High-Tech Corporation
    Inventors: Naoshi Itabashi, Sonoko Migitaka, Itaru Yanagi, Rena Akahori, Kenichi Takeda
  • Patent number: 11174559
    Abstract: A process for electrochemical preparation of an alkali metal alkoxide solution is performed in an electrolysis cell having three chambers. The middle chamber is separated from the cathode chamber by a solid-state electrolyte permeable to cations, for example NaSICON, and from the anode chamber by a diffusion barrier, for example a membrane selective for cations or anions.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: November 16, 2021
    Assignee: Evonik Functional Solutions GmbH
    Inventors: Michael Horn, Philip Heinrich Reinsberg, Felix Gärtner, Jutta Malter, Patrik Stenner, Tobias Stadtmüller
  • Patent number: 11174566
    Abstract: Aqueous acidic copper electroplating bath comprising: copper ions; at least one acid; halide ions; at least one sulfur containing compound selected form the group consisting of sodium 3-mercaptopropylsulfonate, bis(sodiumsulfopropyl)disulfide, 3-(N,N-dimethylthiocarbamoyl)-thiopropanesulfonic acid or the respective sodium salt thereof and mixtures of the aforementioned; at least one amine reaction product of diethylamine with epichlorohydrin or an amine reaction product of isobutyl amine with epichlorohydrin or mixtures of these reaction products; at least one ethylene diamine compound selected from the group having attached EO-PO-block polymers, attached EO-PO-block polymers and sulfosuccinate groups and mixtures thereof; at least one aromatic reaction product of benzylchloride with at least one polyalkylenimine and a method for electrolytically depositing of a copper coating using the electroplating bath.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: November 16, 2021
    Assignee: Atotech Deutschland GmbH
    Inventors: Philipp Wachter, Stefan Kretschmer
  • Patent number: 11168405
    Abstract: A nickel film is formed on the surface of a metal substrate with a solid electrolyte membrane in contact with a metal substrate while suppressing the corrosion taking place on the metal substrate by a method of forming a nickel film comprising: disposing an anode, a metal substrate that functions as a cathode, and a solid electrolyte membrane comprising a solution that contains nickel ions and chloride ions, such that the solid electrolyte membrane is disposed between the anode and the metal substrate and in contact with the surface of the metal substrate; and applying a voltage between the anode and the metal substrate, so as to form a nickel film on the surface of the metal substrate that is in contact with the solid electrolyte membrane, wherein the concentration of the chloride ions is 0.002 to 0.1 mol/l.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: November 9, 2021
    Inventor: Yuki Sato
  • Patent number: 11158843
    Abstract: A method for making nanoporous nickel composite material comprises: providing a cathode plate and a copper-containing anode plate, electroplating a copper material layer a surface of the cathode plate; laying a carbon nanotube layer on the copper material layer, and forming an overlapped structure of the copper material layer and the carbon nanotube laye; the cathode plate and the overlapped structure are used as a cathode, and a nickel-containing anode plate is used as an anode, plating a nickel material layer on the overlapped structure to form sandwich structure; repeating steps S1 to S3 to obtain a carbon nanotube-reinforced copper-nickel alloy; rolling and annealing the carbon nanotube-reinforced copper-nickel alloy; and etching the carbon nanotube-reinforced copper-nickel alloy to form the nanoporous nickel composite material.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: October 26, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Ze-Cheng Hou, Yuan-Feng Liu, Lin Zhu, Wen-Zhen Li
  • Patent number: 11142833
    Abstract: Methods for electrochemically oxidizing aromatic aldehydes, such as furfural and furfural derivatives, to carboxylic acids in acidic solutions are provided. Also provided are electrochemical cells for carrying out the oxidation reactions. The electrochemical oxidations may be conducted in aqueous media at ambient pressure and mild temperatures.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: October 12, 2021
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Kyoung-Shin Choi, Stephen Riley Kubota