Patents Examined by Mark Kopec
  • Negative electrode active material for lithium ion battery
    Patent number: 11404686
    Abstract: The present invention provides a negative electrode active material for lithium ion batteries which has high adhesiveness and followability to a negative electrode active material in volume expansion and contraction during charging and discharging, excellent contact and adhesiveness to a conductive aid, a binder, and a current collector, and a high suppressing effect on decomposition of an electrolyte solution. Due to these features, the negative electrode active material for lithium ion batteries is capable of achieving excellent cycle characteristics and rate characteristics and high coulombic efficiency. The present invention also provides a negative electrode for lithium ion secondary batteries and a lithium ion secondary battery each including the negative electrode active material for lithium ion batteries, and a method for producing a negative electrode active material for lithium ion batteries.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: August 2, 2022
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Ren-de Sun, Shoji Nozato, Akira Nakasuga
  • Mixed silver powder and conductive paste comprising same
    Patent number: 11401200
    Abstract: A mixed silver powder and a conductive paste comprising the powder are disclosed. The mixed silver powder is obtained by mixing two or more spherical silver powders having different properties from each other. The mixed powder may minimize the disadvantages of the respective types of the two or more powders and maximize the advantages thereof, thereby improving the characteristics of products. In addition, by comprehensively controlling the particle size distribution of surface-treated mixed silver powder and the particle diameter and specific gravity of primary particles, a high-density conductor pattern, a precise line pattern, and the suppression of aggregation over time can be simultaneously achieved.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: August 2, 2022
    Assignee: DAEJOO ELECTRONIC MATERIALS CO., LTD.
    Inventors: Chi Ho Yoon, Jin Ho Kwak, Won Jun Jo, Young Ho Lee, Jong Chan Lim, Moo Hyun Lim
  • Nitrate process for manufacturing transition metal hydroxide precursors
    Patent number: 11401167
    Abstract: This invention relates to an industrial process of manufacturing hydroxide precursor for lithium transition metal oxide used in secondary lithium ion batteries. More particularly, this process utilizes highly concentrated nitrate salts and is designed to mitigate waste production.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: August 2, 2022
    Assignees: UMICORE, UMICORE KOREA, LTD.
    Inventors: Jens Paulsen, Eric Robert, Dirk Vanhoutte, Daniël Nelis, Randy De Palma, Dae-Hyun Kim
  • Iridium complex compound, composition containing the compound and solvent, organic electroluminescent element containing the compound, display device, and illumination device
    Patent number: 11404652
    Abstract: An iridium complex compound of formula (10): wherein Ir represents an iridium atom. m1 represents an integer of 1 or 2, n1 represents an integer of 1 or 2, and m1+n1=3. Ra1 at each occurrence represents an alkyl group or an aralkyl group. Rb1, Rc1, and R21 to R24 each independently represent a hydrogen atom or a substituent. and Ra1 to Rc1 and R21 to R24 may be further bonded to each other to form a ring, and wherein at least one of Rb1 and Rc1 is a substituted or unsubstituted aromatic or heteroaromatic group.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: August 2, 2022
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Kazuhiro Nagayama, Oki Iemura
  • Polymer microspheres as binders for composite electrolytes
    Patent number: 11394054
    Abstract: Provided herein are composite electrolytes that include inorganic conductors and polar polymers. By providing the polar polymers as structures such as microspheres in a suspension in a non-polar solvent, the polar polymers can be used as binders in composites that include sulfide electrolytes. The resulting composites have high room temperature conductivities and good mechanical properties. Also provided are composites that include inorganic conductors and other polymers that are insoluble in non-polar solvents. Also provides methods of forming composite electrolytes using suspensions of polymer microstructures in a processing solvent and the resulting composite electrolytes.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: July 19, 2022
    Assignee: Blue Current, Inc.
    Inventors: Irune Villaluenga, Joanna Burdynska, Kevin Wujcik
  • Ink composition for organic light emitting device
    Patent number: 11377570
    Abstract: The present invention relates to an ink composition for an organic light emitting device that can be applied to an inkjet process. When the inkjet process is applied using this, it is possible to form a film having smooth and flat surfaces when dried after forming an ink film.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: July 5, 2022
    Inventors: Mi Kyoung Kim, Ji Young Jung
  • Metal-doped cobalt precursor for preparing positive electrode active material for secondary battery
    Patent number: 11377367
    Abstract: Provided is a cobalt precursor for preparing a lithium cobalt oxide of a layered structure which is included in a positive electrode active material, wherein the cobalt precursor is cobalt oxyhydroxide (CoM?OOH) doped with, as dopants, magnesium (Mg) and M? different from the magnesium.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: July 5, 2022
    Inventors: Chi Ho Jo, Sungbin Park, Jiyoung Park, Bo Ram Lee, Hyuck Hur, Wang Mo Jung
  • Surface modification of silicon particles for electrochemical storage
    Patent number: 11380890
    Abstract: Silicon particles for active materials and electro-chemical cells are provided. The active materials comprising silicon particles described herein can be utilized as an electrode material for a battery. In certain embodiments, the composite material includes greater than 0% and less than about 90% by weight silicon particles, the silicon particles having an average particle size between about 10 nm and about 40 ?m, wherein the silicon particles have surface coatings comprising silicon carbide or a mixture of carbon and silicon carbide, and greater than 0% and less than about 90% by weight of one or more types of carbon phases, wherein at least one of the one or more types of carbon phases is a substantially continuous phase.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: July 5, 2022
    Assignee: Enevate Corporation
    Inventors: Wei Wang, Benjamin Yong Park, Ian Russell Browne
  • Zinc oxide varistor and method for manufacturing same
    Patent number: 11370712
    Abstract: Focus is on zinc oxide itself, which is a base material for a zinc oxide varistor (laminated varistor), wherein specified quantities of additives are added to a zinc oxide powder having a crystallite size of 20 to 50 nm, grain diameter of 15 to 60 nm found using the specific surface area BET method, untamped density of 0.38 to 0.50 g/cm3, and tap density of 0.50 to 1.00 g/cm3. This allows securing of uniformity, high compactness, and high electrical conductivity of a zinc oxide sintered body, and provision of a zinc oxide varistor having high surge resistance.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: June 28, 2022
    Assignees: KOA Corporoation, JFE Mineral Company, Ltd.
    Inventors: Yoji Gomi, Kenichi Iguchi, Etsurou Udagawa, Yuko Echizenya, Yoshimi Nakata
  • Bio-electrode composition, bio-electrode, and method for manufacturing bio-electrode
    Patent number: 11369299
    Abstract: A bio-electrode composition includes (A) an ionic material and (B) a silicon material powder. The component (A) is a polymer compound containing a repeating unit-a having a structure selected from an ammonium salt, a sodium salt, a potassium salt, and a silver salt of any of fluorosulfonic acid, fluorosulfonimide, and N-carbonyl-fluorosulfonamide. Thus, the present invention provides a bio-electrode composition capable of forming a living body contact layer for a bio-electrode that is excellent in electric conductivity and biocompatibility, is light-weight, can be manufactured at low cost, and can control significant reduction in the electric conductivity even when the bio-electrode is wetted with water or dried; a bio-electrode including a living body contact layer formed of the bio-electrode composition; and a method for manufacturing the bio-electrode.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: June 28, 2022
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Jun Hatakeyama, Motoaki Iwabuchi
  • Zinc oxide varistor
    Patent number: 11370671
    Abstract: Focusing on zinc oxide itself, which is a main raw material for a zinc oxide varistor (laminated varistor), a predetermined amount of additive is added to a zinc oxide powder having crystallite size of 20 to 100 nm, particle diameter of 20 to 110 nm found using a specific area BET method, untamped density of 0.60 g/cm3 or greater, and tap density of 0.80 g/cm3 or greater. This allows a zinc oxide sintered body to secure uniformity, high density, and high electric conductivity, resulting in a zinc oxide varistor with high surge resistance, capable of downsizing and cost reduction. Moreover, addition of aluminum (Al), as a donor element, to the zinc oxide powder allows control of sintered grain size in conformity with the aluminum added amount and baking temperature, and also allows adjustment of varistor voltage, etc.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: June 28, 2022
    Assignees: KOA Corporation, JFE Mineral Company, Ltd.
    Inventors: Naomi Ishida, Yoji Gomi, Kenichi Iguchi, Etsurou Udagawa, Yuko Echizenya, Yoshimi Nakata
  • Sulfur-carbon composite manufacturing method, sulfur-carbon composite manufactured thereby, cathode comprising same sulfur-carbon composite, and lithium secondary battery comprising same cathode
    Patent number: 11362325
    Abstract: Discussed is a method for preparing a sulfur-carbon composite including the steps of: (a) mixing a carbon-based material with sulfur or a sulfur compound to prepare a sulfur-carbon mixture; (b) placing the sulfur-carbon mixture mixed in step (a) and a liquid which is vaporizable into a sealable container; and (c) heating the sealed container to a temperature of 120 to 200° C. to vaporize the liquid and prepare the sulfur-carbon composite. Also discussed is a positive electrode for a lithium secondary battery including the sulfur-carbon composite prepared by the above method, and a lithium secondary battery including the above positive electrode.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: June 14, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Eunkyung Cho, Kwonnam Sohn
  • Negative electrode material and non-aqueous electrolyte secondary battery
    Patent number: 11362321
    Abstract: A negative electrode material includes a graphite material, an alkali metal salt, and at least one metal material selected from the group consisting of Fe, Mn, Mg, Ni, Pd, Rh, Os, and Pt. The graphite material contains natural graphite.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: June 14, 2022
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tatsuya Akira, Taisuke Yamamoto
  • Refrigeration apparatus
    Patent number: 11352532
    Abstract: A refrigeration apparatus includes a heat source unit, a utilization unit, and a liquid refrigerant pipe and gas refrigerant pipe. The utilization unit has utilization unit internal pipelines. The liquid refrigerant pipe and the gas refrigerant pipe connect the heat source unit and the utilization unit internal pipelines. A refrigerant circulates through the heat source unit, the utilization unit, the liquid refrigerant pipe, and the gas refrigerant pipe. The refrigerant contains a compound represented by a molecular formula having one or more carbon-carbon unsaturated bonds. A disproportionation inhibitor for reducing a disproportionation reaction of the refrigerant is applied to at least a part of inner surfaces of the liquid refrigerant pipe, the gas refrigerant pipe, and the utilization unit internal pipelines.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: June 7, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Masaru Tanaka, Shigeharu Taira, Tomoyuki Haikawa, Yoshiki Shimizu
  • Sinter-bonding composition, sinter-bonding sheet and dicing tape with sinter-bonding sheet
    Patent number: 11352527
    Abstract: The sinter-bonding composition contains sinterable particles containing an electroconductive metal. The average particle diameter of the sinterable particles is 2 ?m or less and the proportion of the particles having a particle diameter of 100 nm or less in the sinterable particles is not less than 80% by mass. The sinter-bonding sheet (10) has an adhesive layer made from such a sinter-bonding composition. The dicing tape with a sinter-bonding sheet (X) has such a sinter-bonding sheet (10) and a dicing tape (20). The dicing tape (20) has a lamination structure containing a base material (21) and an adhesive layer (22), and the sinter-bonding sheet (10) is positioned on the adhesive layer (22) of the dicing tape (20).
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: June 7, 2022
    Assignee: NITTO DENKO CORPORATION
    Inventors: Tomoaki Ichikawa, Yuki Sugo, Mayu Shimoda, Ryota Mita
  • Electrically conductive substance, method of producing electrically conductive substance, and electrode, catalyst and material containing electrically conductive substance
    Patent number: 11349128
    Abstract: Disclosed is an electrically conductive substance which comprises a complex containing rubeanic acid ligands and copper ions. The copper ions contained in the complex comprise copper (I) ions. The electrically conductive substance is produced by a production method which comprises mixing a rubeanic acid compound and a copper (I) compound in the presence of a base.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: May 31, 2022
    Assignee: ZEON CORPORATION
    Inventors: Hiroyuki Yonemaru, Tsutomu Fujii
  • Insulation material for a DC electrical component
    Patent number: 11342095
    Abstract: An insulation material for a DC electrical component. The insulation material includes a thermoset or thermoplastic matrix and a functional filler component. The functional filler component has a non-linear DC conductivity depending on an applied electrical field strength. At least in a temperature range of 0° C. to 120° C., the functional filler component has a bandgap in the range of 2 to 5 eV, and optionally in the range of 2 to 4 eV. Furthermore, a method for producing an insulation material, a use of an insulation material for a high voltage DC electrical component, a DC electrical component comprising the insulation material and the use of a DC electrical component comprising the insulation material in a high voltage DC gas insulated device are suggested.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: May 24, 2022
    Assignee: HITACHI ENERGY SWITZERLAND AG
    Inventors: Yibo Zhang, JianSheng Chen, Lise Donzel, Pierre Elser, Robin Gremaud, ZhiQiang Tao, Rico Gasparini, Ulrich Straumann, Uwe Riechert
  • Polymer blends having mixed electronic and ionic conductive properties
    Patent number: 11335902
    Abstract: A battery electrode material includes a composition of (A) a charge-conducting radical polymer, (B) poly[poly(ethylene oxide) methyl ether methacrylate] (PPEGMA); and (A) a lithium salt, the composition being a mixed ionic and electronic conductor with ionic conductivity at room temperature of at least about 10?4 S/cm and electronic conductivity of at least about 10?3 S/cm.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: May 17, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Zijie Lu, Venkataramani Anandan, Bryan William Boudouris, Siddhartha Akkiraju
  • Conductive adhesive and cured product thereof
    Patent number: 11332645
    Abstract: There is provided a conductive adhesive which can suppress erosion of polycarbonate and form a cured product exhibiting excellent conductivity at a low temperature. There is also provided a conductive adhesive which can form a cured product exhibiting excellent adhesive property to plastics (particularly carbonate) at a low temperature. The conductive adhesive according to the present invention is a conductive adhesive which contains the following components (A) to (C) and is liquid at 25° C.: component (A): an alicyclic epoxy resin; component (B): a boron-based thermal cationic initiator; and component (C): a conductive filler.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: May 17, 2022
    Assignee: THREEBOND CO., LTD.
    Inventors: Kanako Matsuo, Hitoshi Mafune
  • Fabric care compositions that include a graft copolymer and related methods
    Patent number: 11326129
    Abstract: Fabric care compositions that include a graft copolymer, which may include (a) a polyalkylene oxide, such as polyethylene oxide (PEG); (b) N-vinylpyrrolidone (VP); and (c) a vinyl ester, such as vinyl acetate. Methods and uses relating to such compositions and/or graft copolymers.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: May 10, 2022
    Assignee: The Procter & Gamble Company
    Inventors: Renae Dianna Fossum, Lidiany Gonzalez, Elaine Marie Burt, Jan Ole Mueller, Dieter Hannu Boeckh, Dawid Marczewski