Patents Assigned to Mitsui Mining & Smelting Co., Ltd.
  • Patent number: 10434502
    Abstract: The present invention provides an exhaust gas purifying composition containing BEA zeolite containing phosphorus, wherein an amount of phosphorus is such that a molar ratio thereof with respect to Al in the zeolite is 0.5 or greater, and a maintaining factor RS of a specific surface area of the exhaust gas purifying composition after heating at 980° C. for 25 hours is 35% or greater. Furthermore, the present invention also provides an exhaust gas purifying composition containing phosphorus-containing zeolite, wherein an amount of phosphorus is such that a molar ratio thereof with respect to Al in the zeolite is from 0.5 to 8, and a maintaining factor Rd of a crystallite diameter after heating at 980° C. for 25 hours is 50% or greater. The exhaust gas purifying composition of the present invention has excellent HC purifiability for exhaust gas purification in internal combustion engines such as gasoline engines.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: October 8, 2019
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Jo Nishikawa, Satoshi Watanabe, Michitaka Yamaguchi
  • Publication number: 20190292415
    Abstract: Provided is an adhesive sheet including a substrate sheet and a soluble adhesive layer with an island or stripe pattern disposed on at least one surface of the substrate sheet, wherein each adhesive region has a circumscribed circle diameter of 0.1 mm to 10 mm for the island pattern, or has a stripe width of 0.1 mm to 10 mm for the stripe pattern. This adhesive sheet can retain an adhesive force of the adhesive layer until just before releasing and can be readily released from the adherend at any time without applying of excessive stress to the adherend.
    Type: Application
    Filed: November 24, 2017
    Publication date: September 26, 2019
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Tetsuro SATO, Toshimi NAKAMURA
  • Patent number: 10396363
    Abstract: An object of the present invention is to provide a copper foil inexpensive and sufficient in tensile strength even after heat treatment. The copper foil includes zinc in a content range of 0.02% by mass to 2.7% by mass in the total mass of the entire copper foil, and if the regions in thicknesses direction from both surfaces of the copper foil where occupies 5% by mass in the total mass of the entire copper foil are referred to as the respective external layers and a region between one external layer and the other external layer is referred to as an internal layer, the internal layer includes copper as a main element and includes 100 ppm or more of one or mixture of small amount-elements selected from carbon, sulfur, chlorine and nitrogen, and includes zinc at 10% or more in the total mass of zinc included in the entire copper foil.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: August 27, 2019
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Koichi Miyake, Tomoyuki Maeda, Kazutaka Hozumi, Hiroaki Nakahara, Shinichi Yamauchi
  • Publication number: 20190261518
    Abstract: There is provided a copper foil provided with a carrier exhibiting a high peeling resistance against the developer in the photoresist developing process and achieving high stability of mechanical peel strength of the carrier. The copper foil provided with a carrier comprises a carrier; an interlayer disposed on the carrier, the interlayer having a first surface adjacent to the carrier and containing 1.0 atom % or more of at least one metal selected from the group consisting of Ti, Cr, Mo, Mn, W and Ni and a second surface remote from the carrier and containing 30 atom % or more of Cu; a release layer disposed on the interlayer; and an extremely-thin copper layer disposed on the release layer.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 22, 2019
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventor: Yoshinori MATSUURA
  • Patent number: 10357824
    Abstract: A new dendritic silver powder can be mixed with a synthetic resin to give electroconductive films having sufficient electroconductivity. Even when the films vary in thickness, the electroconductivity of the films can be maintained. The volume-cumulative particle diameter D50 (referred to as “D50D”) determined by adding the silver powder to water containing a dispersant, applying 300-watt ultrasonic waves to the resultant mixture for 3 minutes, and examining the dispersion with a laser diffraction/scattering type particle size analyzer is 1.0-15.0 ?m and that the ratio of the volume-cumulative particle diameter D50 (referred to as “D50N”) determined by adding the silver powder to the water containing a dispersant and examining the mixture under the same conditions as for the D50D except that no ultrasonic waves are applied, to the D50D, D50N/D50D, is 1.0-10.0.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: July 23, 2019
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Hiroyuki Morinaka, Yasunari Wakimori, Kentaro Ochi
  • Patent number: 10356915
    Abstract: There is provided a copper foil provided with a carrier exhibiting a high peeling resistance against the developer in the photoresist developing process and achieving high stability of mechanical peel strength of the carrier. The copper foil provided with a carrier comprises a carrier; an interlayer disposed on the carrier, the interlayer having a first surface adjacent to the carrier and containing 1.0 atom % or more of at least one metal selected from the group consisting of Ti, Cr, Mo, Mn, W and Ni and a second surface remote from the carrier and containing 30 atom % or more of Cu; a release layer disposed on the interlayer; and an extremely-thin copper layer disposed on the release layer.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: July 16, 2019
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventor: Yoshinori Matsuura
  • Patent number: 10350581
    Abstract: The invention relates to a catalyst composition using other metals different from precious metals as a catalytically active component and is to propose a novel catalyst composition for exhaust gas purification which has excellent catalytic activity, in particular, excellent treatment activity of HC even after a thermal durability treatment. The invention is to propose a catalyst composition for exhaust gas purification comprising catalyst particles having a constitution in which Cu and a transition metal A including at least one of Cr, Fe, Mn, Co, Ni, Zr, and Ag are supported on ceria (CeO2) particles and a catalyst using the same.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: July 16, 2019
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yuki Nagao, Michitaka Yamaguchi, Yunosuke Nakahara, Masato Machida
  • Patent number: 10355285
    Abstract: A membrane-electrode assembly including a catalyst layer that includes a catalyst-supporting carrier in which a catalyst is supported on a carrier made of an inorganic oxide, and a highly hydrophobic substance having a higher degree of hydrophobicity than the inorganic oxide, the catalyst layer being formed on at least one surface of a polymer electrolyte membrane. It is preferable that, in the membrane-electrode assembly, the degree of hydrophobicity of the highly hydrophobic substance is from 0.5 vol % to 45 vol % at 25° C., the degree of hydrophobicity being defined as a concentration of methanol (vol %) when a light transmittance of a dispersion obtained by dispersing the highly hydrophobic substance in a mixed solution of water and methanol reaches 80%.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: July 16, 2019
    Assignees: MITSUI MINING & SMELTING CO., LTD., UNIVERSITY OF YAMANASHI
    Inventors: Koji Taniguchi, Masahiro Watanabe, Makoto Uchida, Katsuyoshi Kakinuma
  • Patent number: 10340154
    Abstract: Provided is a bonding joining structure in which a heat generating body and a support including a metal are joined to each other via a joint portion composed of a sintered body of copper powder. The support contains copper or gold, the copper or gold being present in at least an outermost surface of the support. An interdiffusion portion in which copper or gold contained in the support and copper contained in the sintered body is formed so as to straddle a bonding interface between the support and the sintered body. Preferably, a copper crystal structure having the same crystal orientation is formed in the interdiffusion portion so as to straddle the bonding interface.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: July 2, 2019
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Yoichi Kamikoriyama, Shinichi Yamauchi
  • Patent number: 10329161
    Abstract: These halogen-containing tin oxide particles have a BET specific surface area of 25-100 m2/g and a crystallite diameter of 8-30 nm. The particles optimally contain 0.01-0.75 mass % halogen. Fluorine is optimally contained as the halogen. Optimally, the particles additionally contain tantalum, niobium, phosphorus, antimony, tungsten, or molybdenum. The volume resistivity is optimally 0.1-1000 ?·cm.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: June 25, 2019
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Yoshihiro Yoneda, Akira Aoki, Kenji Suzuoka
  • Patent number: 10328416
    Abstract: A fuel reforming catalyst which contains an inorganic porous support, a catalytically active species, and catalyst particles including CeO2 and ZrO2 and in which the concentration of ZrO2 in the catalyst particles is higher in the vicinity of the particle surface than in the particle interior and the concentration of CeO2 in the catalyst particles is equal in the particle interior and in the vicinity of the particle surface is proposed for the purpose of providing a new fuel reforming catalyst which can effectively lower the concentration of the hydrocarbon of C2 or more in the gas which has passed through a steam reforming reaction.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: June 25, 2019
    Assignees: Mitsui Mining & Smelting Co., Ltd., HONDA MOTOR CO., LTD.
    Inventors: Seiji Moriuchi, Kazuya Kinoshita, Yunosuke Nakahara, Keiji Tsukamoto, Kazuyuki Yamada, Hideo Urata
  • Patent number: 10312508
    Abstract: A positive electrode active material comprising a lithium metal composite oxide having a layered crystal structure provides a novel lithium metal composite oxide powder which can suppress the reaction with an electrolytic solution and raise the charge-discharge cycle ability of a battery, and can improve the output characteristics of a battery. A lithium metal composite oxide powder comprises a particle having a surface portion where one or a combination of two or more (“surface element A”) of the group consisting of Al, Ti and Zr is present, on the surface of a particle comprising a lithium metal composite oxide having a layered crystal structure, wherein the amount of surface LiOH is smaller than 0.10% by weight, and the amount of surface Li2CO3 is smaller than 0.25% by weight; in an X-ray diffraction pattern, the ratio of an integral intensity of the (003) plane of the lithium metal composite oxide to that of the (104) plane thereof is higher than 1.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: June 4, 2019
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Tetsuya Mitsumoto, Daisuke Washida, Toshikazu Matsuyama, Daisuke Inoue, Hideaki Matsushima, Yoshimi Hata, Hitohiko Ide, Shinya Kagei
  • Patent number: 10300525
    Abstract: This filtration device 10 has a can body 20 having a reservoir 3 that connects to an opening 9 at the top, and a filtration unit 40 which is detachably installed in the reservoir. The filtration unit has a support plate 42, and filtration tubes 41 of bottomed cylindrical shape fastened to the support plate. The side wall 22 of the can body 20 has a protruding locking part 30 for installation of the filtration unit so that the filtration tubes are suspended from the support plate 42, with the openings 43 thereof facing upward. With the support plate 42 locked into the locking part 30, pressing members 70 for pressing the support plate 42 downward from the upper surface side in sections thereof lying towards the peripheral edge S in relation to the fastening locations of the filtration tubes 41 are deployed, making it possible for the support plate 42 to be fastened in clamped fashion by the locking part 30 and the pressing members 70.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: May 28, 2019
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Takeo Arita, Minoru Kubota, Kazuhiko Kawaguchi, Eiki Tsutsumi
  • Publication number: 20190135647
    Abstract: The objective of the invention is to provide an MSE-type zeolite production method such that an MSE-type zeolite can be produced in a comparatively short heating time by using inexpensive tetraethylammonium ion. The production method of the present invention comprises steps of: (1) mixing a silica source, an alumina source, an alkali source, tetraethylammonium ion, and water in such a manner as to yield a reaction mixture of the composition represented by the molar ratios indicated below: SiO2/Al2O3=between 10 and 100 inclusive (Na2O+K2O)/SiO2=between 0.15 and 0.50 inclusive K2O/(Na2O+K2O)=between 0.05 and 0.7 inclusive TEA2O/SiO2=between 0.08 and 0.20 inclusive H2O/SiO2=between 5 and 50 inclusive; (2) using the MSE-type zeolite as a seed crystal, and adding this seed crystal to the mixture at a proportion of 5 to 30% by mass with respect to the silica component in the reaction mixture; and (3) heating, under hermetic seal at a temperature of 100 to 200° C.
    Type: Application
    Filed: April 26, 2017
    Publication date: May 9, 2019
    Applicants: Mitsui Mining & Smelting Co., Ltd., The University of Tokyo
    Inventors: Keiji ITABASHI, Shanmugam Palani ELANGOVAN, Sibel SOGUKKANLI, Tatsuya OKUBO
  • Patent number: 10283728
    Abstract: There is provided a high gloss electrodeposited copper foil which can be manufactured in a short time. The electrodeposited copper foil has a fraction of the areas occupied by the {100} plane deviating by 18° or less from the <001> crystal orientation of 10% or more determined by analysis of the surface by electron backscatter diffraction (EBSD) and at least one surface of the electrodeposited copper foil has a glossiness Gs (20°) of 1,500 or more, determined in accordance with JIS Z 8741-1997.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: May 7, 2019
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Yoshinori Matsuura, Toshimi Nakamura, Masaharu Myoi, Hajime Watanabe
  • Patent number: 10280501
    Abstract: There is provided a roughened copper foil which can significantly improve adhesion to an insulating resin and reliability (e.g., hygroscopic heat resistance). The roughened copper foil of the present invention has at least one roughened surface having fine irregularities composed of acicular crystals, wherein the entire surface of the acicular crystals is composed of a mixed phase of Cu metal and Cu2O.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: May 7, 2019
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Satoshi Mogi, Hiroaki Tsuyoshi
  • Patent number: 10280091
    Abstract: An yttrium oxyfluoride is represented by YOF and is stabilized by a fluoride represented by CaF2. Preferably, the number of moles of Ca with respect to 100 mol of yttrium is from 8 to 40 mol. A powder material is made of a first powder mixture including a calcium fluoride powder represented by CaF2 and an yttrium oxyfluoride powder represented by YOF, or a second powder mixture including a calcium fluoride powder represented by CaF2, an yttrium fluoride powder represented by YF3, and an yttrium oxide powder represented by Y2O3. A production method involves firing a molded product of the first or second powder mixture under predetermined conditions.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: May 7, 2019
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yasuhiro Seto, Shoji Imaura, Masahiro Koide
  • Patent number: 10276867
    Abstract: Provided is a new 5 V-class spinel-type lithium-manganese-containing composite oxide capable of achieving both the expansion of a high potential capacity region and the suppression of gas generation. Proposed is the spinel-type lithium-manganese-containing composite oxide comprising Li, Mn, O and two or more other elements, and having an operating potential of 4.5 V or more at a metal Li reference potential, wherein a peak is present in a range of 14.0 to 16.5° at 2?, in an X-ray diffraction pattern measured by a powder X-ray diffractometer (XRD) using CuK?1 ray.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: April 30, 2019
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Tetsuya Mitsumoto, Kyohei Yamaguchi, Toshikazu Matsuyama, Hideaki Matsushima, Shinya Kagei
  • Patent number: 10263256
    Abstract: Relating to a 5 V-class spinel type lithium nickel manganese-containing composite oxide having an operating potential of 4.5 V or more with respect to a Li metal reference potential, the present invention proposes a composite oxide being capable of improving cycle properties while suppressing the amount of gas generation under high temperature environments and of increasing thermodynamical stability of a positive electrode in a fully charged state. Proposed is a spinel type lithium nickel manganese-containing composite oxide represented by a general formula [Li(LiaNiyMn2-a-b-y-z-?TibAlzM?)O4-?] (where 0<a, 0<b, 0.30?y<0.60, 0<z, 0??, 2-a-b-y-z-?<1.7, 3?b/a?8, 0.1<b+z+?, 0<z/b?1, and M represents one or two or more metal elements selected from the group consisting of Mg, Fe, Co, Ba, Cr, W, Mo, Y, Zr, Nb, and Ce).
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: April 16, 2019
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Tetsuya Mitsumoto, Hideaki Matsushima, Shinya Kagei
  • Patent number: 10263244
    Abstract: Provided is a lithium metal composite oxide having a layered structure, which is particularly excellent as a positive electrode active material for batteries that are mounted on electric vehicles or hybrid vehicles. Proposed is a lithium metal composite oxide having a layered structure, which is represented by general formula Li1+x(Mn?Co?Ni?)1?xO2 (0.00?X?0.07, 0.10???0.40, 0.10???0.40, and 0.30???0.75) and has a specific surface area of more than 2.0 m2/g but 5.0 m2/g or less and has an average particle size of the primary particles/crystallite size ratio of 5.7 to 18.5.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: April 16, 2019
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Tetsuya Mitsumoto, Yasuhiro Ochi, Tomohiro Sakata, Hitohiko Ide, Yoshimi Hata, Shinya Kagei