Patents Assigned to Sumitomo Metal Mining Co., Ltd.
  • Lithium nickel containing composite oxide and manufacturing method thereof, and nonaqueous-electrolyte secondary battery
    Patent number: 10777815
    Abstract: A cathode active material that is able to improve storage characteristics without deteriorating charging and discharging capacity is provided. By mixing lithium nickel containing composite oxide particles comprising a layered rock-salt type crystal structure, a lithium compound, and an alkali metal compound; calcining the mixed powder at a temperature range of 800° C. to 1000° C.; washing and removing alkali metal other than lithium; mixing washed calcined particles with a lithium compound again; calcining the mixture in an oxidizing atmosphere at a temperature range of 600° C. to 800° C., lithium nickel containing composite oxide comprising a layered rock-salt type crystal structure and a peak intensity ratio of (003) plane with respect to (104) plane of 1.2 or more that are obtained by X-ray powder diffraction using Cu-K? ray as an X-ray source is obtained.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: September 15, 2020
    Assignees: SUMITOMO METAL MINING CO., LTD., SHINSHU UNIVERSITY
    Inventors: Satoshi Kanada, Katsuya Teshima, Nobuyuki Zettsu, Takeshi Kimijima
  • PULVERIZED MASTERBATCH PRODUCTS CONTAINING INFRARED ABSORBING FINE PARTICLES, DISPERSION LIQUID CONTAINING PULVERIZED MASTERBATCH PRODUCTS CONTAINING INFRARED ABSORBING FINE PARTICLES, INK CONTAINING INFRARED ABSORBING MATERIAL, AND ANTI-COUNTERFEIT INK AND ANTI-COUNTERFEIT PRINTED MATTER USING THEM, AND METHOD FOR PRODUCING THE PULVERIZED MASTERBATCH PRODUCTS CONTAINING INFRARED ABSORBING FINE PARTICLES
    Publication number: 20200283586
    Abstract: Pulverized masterbatch products containing infrared absorbing fine particles, dispersion liquid containing pulverized masterbatch products containing infrared absorbing fine particles, ink containing infrared absorbing material, and anti-counterfeit ink and an anti-counterfeit printed matter using them, having excellent infrared absorption properties and having excellent chemical resistance, and a method for producing the pulverized masterbatch products containing infrared absorbing fine particles. The pulverized masterbatch products containing infrared absorbing fine particles have a dispersed particle size of 1 ?m or more, and contain resin with infrared absorbing fine particles dispersed inside.
    Type: Application
    Filed: July 23, 2018
    Publication date: September 10, 2020
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hirofumi TSUNEMATSU, Takeshi CHONAN
  • Method for producing high density nickel powder
    Patent number: 10766072
    Abstract: Provided is a method for producing high density nickel powder particularly having a median diameter of 100 to 160 ?m by controlling a particle size of nickel powder. The method includes: performing an initial operation by charging a pressure vessel equipped with a stirrer with a nickel ammine complex solution containing nickel in the concentration of 5 to 75 g/L together with seed crystals in the amount of 5 to 200 g per liter of the solution, increasing the temperature of the solution, and performing a reduction reaction with hydrogen by blowing hydrogen gas into the pressure vessel, thereby obtaining the nickel contained in the nickel ammine complex solution as nickel powder; and thereafter, performing a specified operation A repeatedly at least once to obtain the nickel powder having the median diameter of 100 to 160 ?m and a bulk density of 1 to 4.5 g/cm3.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: September 8, 2020
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hideki Ohara, Yoshitomo Ozaki, Shin-ichi Heguri, Kazuyuki Takaishi, Osamu Ikeda, Tomoaki Yoneyama, Yohei Kudo
  • POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, LITHIUM ION SECONDARY BATTERY, AND METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY
    Publication number: 20200280069
    Abstract: A positive electrode active material for a lithium ion secondary battery, includes lithium-nickel composite oxide particles and a coating layer that covers at least a part of surfaces of the lithium-nickel composite oxide particles, in which components other than oxygen of the lithium-nickel composite oxide are represented by Li:Ni:Co:M=t:1?x?y:x:y (where, M is at least one element selected from the group consisting of Mg, Al, Ca, Si, Ti, V, Fe, Cu, Cr, Zn, Zr, Nb, Mo, or W, 0.95?t?1.20, 0<x?0.22, and 0?y?0.15), the coating layer contains a Ti compound, and a Ti amount per 1 m2 surface area of the lithium-nickel composite oxide is 7.0 ?mol or more and 60 ?mol or less.
    Type: Application
    Filed: November 9, 2018
    Publication date: September 3, 2020
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventor: Ryosuke OKAMOTO
  • NEAR-INFRARED SHIELDING ULTRAFINE PARTICLE DISPERSION BODY, NEAR-INFRARED SHIELDING INTERMEDIATE FILM, NEAR-INFRARED SHIELDING LAMINATED STRUCTURE, AND METHOD FOR PRODUCING NEAR-INFRARED SHIELDING ULTRAFINE PARTICLE DISPERSION BODY
    Publication number: 20200270401
    Abstract: A near-infrared shielding ultrafine particle dispersion body, and others, having excellent near-infrared shielding function, low haze value and excellent design, with suppressed change in color tone during outdoor use and blue haze phenomenon, using near-infrared shielding ultrafine particles transparent in visible light range, having excellent near-infrared shielding properties, and produced with high productivity, and a near-infrared shielding ultrafine particle dispersion body in which ultra-fine particles having near-infrared shielding properties are dispersed in solid medium, wherein the ultrafine particles are composite tungsten oxide ultrafine particles represented by general formula MxWyOz, and have XRD peak top intensity ratio value of 0.
    Type: Application
    Filed: May 17, 2018
    Publication date: August 27, 2020
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hiroshi KOBAYASHI, Kennichi FUJITA, Hirofumi TSUNEMATSU, Takeshi CHONAN
  • AGRICULTURAL AND HORTICULTURAL COVERING FILM AND METHOD FOR PRODUCING THE SAME
    Publication number: 20200267913
    Abstract: An agricultural and horticultural film that does not raise a temperature of an atmosphere such as a greenhouse by using the agricultural and horticultural film in the greenhouse, etc., while absorbing infrared rays from the sunlight and warming the soil, the film having an infrared absorbing layer containing infrared absorbing material ultrafine particles, wherein the infrared absorbing material ultrafine particles are composite tungsten oxide ultrafine particles, and the composite tungsten oxide ultrafine particles have a XRD peak top intensity ratio value of 0.13 or more based on an XRD peak intensity ratio value of 1 on plane of a silicon powder standard sample (640c produced by NIST).
    Type: Application
    Filed: June 19, 2018
    Publication date: August 27, 2020
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hirofumi TSUNEMATSU, Takeshi CHONAN
  • INFRARED ABSORBING FINE PARTICLE DISPERSED POWDER, DISPERSION LIQUID CONTAINING INFRARED ABSORBING FINE PARTICLE DISPERSED POWDER, INK CONTAINING INFRARED ABSORBING FINE PARTICLE DISPERSED POWDER, AND ANTI-COUNTERFEIT INK, AND ANTI-COUNTERFEIT PRINTED MATTER
    Publication number: 20200270464
    Abstract: An infrared absorbing fine particle dispersed powder, dispersion liquid containing infrared absorbing fine particle dispersed powder, ink containing infrared absorbing fine particle dispersed powder, and anti-counterfeit ink and anti-counterfeit printed matter, which are transparent in a visible light region, have excellent infrared absorption properties, and are also excellent in chemical resistance, and an infrared absorbing fine particle dispersed powder containing particles made of solid media and having an average particle size of 1 ?m or more and having infrared absorbing fine particles dispersed inside.
    Type: Application
    Filed: July 23, 2018
    Publication date: August 27, 2020
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hirofumi TSUNEMATSU, Takeshi CHONAN
  • Composite tungsten oxide ultrafine particles and dispersion liquid of the same
    Patent number: 10752512
    Abstract: A general-purpose composite tungsten oxide ultrafine particles capable of producing a dispersion liquid with high productivity while having properties such as good visible light transmittance and shielding light in a near-infrared region, and a composite tungsten oxide ultrafine particle dispersion liquid using the same, wherein a value of an XRD peak top intensity ratio of the composite tungsten oxide ultrafine particles is 0.13 or more when the XRD peak intensity is set to 1, with plane of a silicon powder standard sample (640 c produced by NIST) as a reference.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: August 25, 2020
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hirofumi Tsunematsu, Hiroki Nakayama, Takeshi Chonan
  • Laminate film and electrode substrate film, and method of manufacturing the same
    Patent number: 10752985
    Abstract: [Object] Provided are a laminate film and an electrode substrate film with excellent etching quality, in which a circuit pattern formed by etching processing is less visible under highly bright illumination, and a method of manufacturing the same. [Solving Means] A laminate film includes a transparent substrate 60 formed of a resin film and a layered film provided on at least one surface of the transparent substrate. The layered film includes metal absorption layers 61 and 63 as a first layer and metal layers (62, 65), (64, 66) as a second layer, counted from the transparent substrate side. The metal absorption layers are formed by a reactive sputtering method which uses a metal target made of Ni alone or an alloy containing two or more elements selected from Ni, Ti, Al, V, W, Ta, Si, Cr, Ag, Mo, and Cu, and a reactive gas containing oxygen. The reactive gas contains hydrogen.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: August 25, 2020
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventor: Hideharu Okami
  • Coated lithium-nickel composite oxide particles and method for producing coated lithium-nickel composite oxide particles
    Patent number: 10749182
    Abstract: Provided are excellent coated lithium-nickel composite oxide particles which are capable of suppressing the occurrence of impurities produced by absorbing water and carbonic acid gas as a result of the high environmental stability thereof, have strong adhesion properties, do not result in easy coating layer detachment, and also exhibit lithium ion conductivity. The surfaces of the lithium-nickel composite oxide particles are coated with a polymer or copolymer comprising one or more types selected from a group consisting of a modified polyolefin resin, a polyester resin, a polyphenol resin, a polyurethane resin, an epoxy resin, a silane-modified polyether resin, a silane-modified polyester resin, a silane-modified polyphenol resin, a silane-modified polyurethane resin, a silane-modified epoxy resin, and a silane-modified polyamide resin.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: August 18, 2020
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventor: Yosuke Ota
  • POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY
    Publication number: 20200259177
    Abstract: A positive electrode active material for obtaining a lithium ion secondary battery, wherein capacity, electron conductivity, durability, and heat stability at the time of overcharge are improved, durability and heat stability being achieved at a high level, and including: a lithium nickel manganese composite oxide composed of secondary particles, in which a plurality of primary particles are flocculated, wherein the composite oxide is represented by a general formula (1): LidNi1-a-b-cMnaMbTicO2 (wherein, M is at least one kind of element selected from Co, W, Mo, V, Mg, Ca, Al, Cr, Zr and Ta, 0.05?a?0.60, 0?b?0.60, 0.02?c?0.08, 0.95?d?1.20), at least a part of titanium in the composite oxide is solid-solved in the primary particles, and, a lithium titanium compound exists on a surface of the positive electrode active material for the lithium ion secondary battery.
    Type: Application
    Filed: September 25, 2018
    Publication date: August 13, 2020
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Takuma NAKAMURA, Haruki KANEDA, Yuki KOSHIKA
  • POSITIVE ELECTRODE ACTIVE SUBSTANCE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING SAME, POSITIVE ELECTRODE MIXTURE PASTE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    Publication number: 20200251732
    Abstract: The positive electrode active material for a nonaqueous electrolyte secondary battery contains a lithium-nickel composite oxide represented by a general formula: LiaNi1?x?yCoxMyO2+? (where 0.01?x?0.35, 0?y?0.10, 0.95?a?1.10, and 0???0.2; and M is at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al) and a boron compound. At least part of the boron compound is present on the surface of the lithium-nickel composite oxide in the form of Li3BO3 and LiBO2, and a mass ratio (Li3BO3/LiBO2) between Li3BO3 and LiBO2 is at least 0.005 and up to 10. Boron is contained in an amount of at least 0.011% by mass and up to 0.6% by mass relative to the entire amount of the positive electrode active material.
    Type: Application
    Filed: May 31, 2018
    Publication date: August 6, 2020
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Kazuomi Ryoshi, Yoshihiro Otsuka, Hiroko Oshita
  • Heat-ray shielding film, heat-ray shielding laminated transparent substrate, automobile, building, dispersoid, mixed composition, method for manufacturing dispersoid, dispersion liquid, and method for manufacturing dispersion liquid
    Patent number: 10730272
    Abstract: There is provided a heat-ray shielding film including composite tungsten oxide particles; a thermoplastic resin; and a metal coupling agent, wherein the composite tungsten oxide particles are represented by a general formula MxWOy, where M is one or more elements selected from Cs, Rb, K, Tl, In, Ba, Li, Ca, Sr, Fe, Sn, Al, Cu, and Na, 0.1?x?0.5, and 2.2?y?3.0.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: August 4, 2020
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Keisuke Machida, Hiroki Nakayama
  • Conductive substrate and liquid crystal touch panel
    Patent number: 10725325
    Abstract: A conductive substrate is provided that is arranged on an image display surface of a liquid crystal panel. The conductive substrate includes a transparent base material, a metal layer formed on at least one surface of the transparent base material, and a blackened layer formed on at least one surface of the transparent base material. Provided the color of the image display surface of the liquid crystal panel during backlight-off time, when converted into the CIE (L*a*b*) color space, has a b* value denoted as “b*panel”, the color of the blackened layer, when converted into the CIE (L*a*b*) color space, has a b* value that satisfies the following Formula 1: (b*panel+1)?b*?(b*panel?3.5) ??Formula 1.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: July 28, 2020
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventor: Takumi Shimoji
  • HEAT-RAY SHIELDING FILM, HEAT-RAY SHIELDING TRANSPARENT LAMINATED BASE MATERIAL, AND AUTOMOBILE MOUNTED WITH THE HEAT-RAY SHIELDING TRANSPARENT LAMINATED BASE MATERIAL AS WINDOW MATERIAL, AND BUILDING USING THE HEAT-RAY SHIELDING TRANSPARENT LAMINATED BASE MATERIAL AS WINDOW MATERIAL
    Publication number: 20200233129
    Abstract: There is provided a heat-ray shielding film mainly composed of polyvinyl acetal resin and capable of exhibiting excellent heat shielding properties, and a heat-ray shielding transparent laminated base material using the heat-ray shielding film, the heat-ray shielding film including: a compound having a heat-ray shielding function; a selective wavelength absorbing material; polyvinyl acetal resin, and a plasticizer; wherein the selective wavelength absorbing material has a transmittance profile in which a transmittance of a light having a wavelength of 550 nm is 90% or more, and a transmittance of a light having a wavelength of 450 nm is 40% or less.
    Type: Application
    Filed: April 3, 2020
    Publication date: July 23, 2020
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Kenichi FUJITA, Keisuke MACHIDA
  • POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, PROCESS FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE POSITIVE ELECTRODE ACTIVE MATERIAL
    Publication number: 20200227732
    Abstract: A positive electrode active material for a non-aqueous electrolyte secondary battery includes a lithium metal composite oxide, wherein the lithium metal composite oxide is represented by a general formula: LiaNi1?x?y?zCoxDyEzO2 (wherein, in the formula, 0.05?x?0.35, 0?y?0.35, 0.002?z?0.05, 1.00?a?1.30, an element D is at least one type of element selected from Mn, V, Mo, Nb, Ti, and W, and an element E is an element forming an alloy with lithium at a potential more noble than a potential in which ions of the element E are reduced), wherein the lithium metal composite oxide includes primary and secondary particles formed by aggregating the primary particles, wherein an oxide containing the element E exists at a surface of at least either of the primary and secondary particles.
    Type: Application
    Filed: June 27, 2018
    Publication date: July 16, 2020
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Takahiro TOMA, Atsushi FUKUI, Taira AIDA, Tetsufumi KOMUKAI
  • NEAR-INFRARED CURABLE INK COMPOSITION AND PRODUCTION METHOD THEREOF, NEAR-INFRARED CURED LAYER, AND STEREOLITHOGRAPHY
    Publication number: 20200224043
    Abstract: A near-infrared curable ink composition on a predetermined substrate that has excellent adhesion to the substrate when irradiated with near-infrared rays and cured, a near-infrared curable film obtained from the near-infrared curable ink composition, and stereolithography using the near-infrared curable ink composition, and contains composite tungsten oxide fine particles as near-infrared absorbing fine particles and uncured thermosetting resin, wherein the composite tungsten oxide fine particles have a XRD peak top intensity ratio value of 0.13 or more based on a XRD peak intensity ratio value of 1 on plane (220) of a silicon powder standard sample (640c produced by NIST).
    Type: Application
    Filed: June 19, 2018
    Publication date: July 16, 2020
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Mika OKADA, Takeshi CHONAN, Hirofumi TSUNEMATSU
  • POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, PRODUCTION METHOD THEREOF, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    Publication number: 20200227718
    Abstract: Provided is a positive electrode active material for nonaqueous electrolyte secondary batteries that suppresses the gelling of a positive electrode mixture material paste and has high weather resistance, a production method thereof, and the like. A method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries includes cleaning a powder formed of a lithium-nickel composite oxide represented by a general formula LizNi1-x-yCoxMyO2 where 0?x?0.35; 0?y?0.10; 0.95?z?1.10; and M is at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al with an aqueous lithium carbonate solution and drying the cleaned powder.
    Type: Application
    Filed: August 25, 2016
    Publication date: July 16, 2020
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hiroko Oshita, Kazuomi Ryoshi
  • Lithium niobate single crystal substrate and method of producing the same
    Patent number: 10711371
    Abstract: To provide a lithium niobate (LN) substrate which allows treatment conditions regarding a temperature, a time, and the like to be easily managed and in which an in-plane distribution of a volume resistance value is very small, and a method of producing the same. A method of producing an LN substrate by using an LN single crystal grown by the Czochralski process, in which an LN single crystal having a Fe concentration of 50 mass ppm or more and 1000 mass ppm or less in the single crystal and processed into a form of a substrate is buried in an Al powder or a mixed powder of Al and Al2O3, and heat-treated at a temperature of 450° C. or more and less than 500° C., to produce a lithium niobate single crystal substrate having a volume resistivity controlled to be within a range of 1×108 ?·cm or more to 1×1010 ?·cm or less.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: July 14, 2020
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventor: Tomio Kajigaya
  • Lithium niobate single crystal substrate and method of producing the same
    Patent number: 10715101
    Abstract: To provide a lithium niobate (LN) substrate which allows treatment conditions regarding a temperature, a time, and the like to be easily managed and in which an in-plane distribution of a volume resistance value is very small, and a method of producing the same. A method of producing an LN substrate by using an LN single crystal grown by the Czochralski process, in which an LN single crystal having a Fe concentration of more than 1000 mass ppm and 2000 mass ppm or less in the single crystal and processed into a form of a substrate is buried in an Al powder or a mixed powder of Al and Al2O3, and heat-treated at a temperature of 550° C. or more and 600° C. or less, to produce a lithium niobate single crystal substrate having a volume resistivity controlled to be within a range of 1×108 ?·cm or more to 1×1010 ?·cm or less.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: July 14, 2020
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventor: Tomio Kajigaya