Patents Assigned to Mitsui Mining & Smelting Co., Ltd.
  • 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: 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: 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: 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: 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
  • Publication number: 20190110364
    Abstract: A multi-layered board includes: a middle conductive layer; a first dielectric layer that is disposed directly on a first surface of the middle conductive layer; a second dielectric layer that is disposed directly on a second surface of the middle conductive layer; a first outer surface conductive layer that is disposed directly on an outer side of the first dielectric layer; and a second outer surface conductive layer that is disposed directly on an outer side of the second dielectric layer. The first outer surface conductive layer serves as a first outer surface of the multi-layered board, and the second outer surface conductive layer serves as a second outer surface of the multi-layered board. The middle conductive layer is solidly formed over an entire planar direction of the multi-layered board. The first dielectric layer and the second dielectric layer each independently have a thickness variation of 15% or less.
    Type: Application
    Filed: February 3, 2017
    Publication date: April 11, 2019
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventor: Yoshihiro YONEDA
  • Patent number: 10244635
    Abstract: There is provided a method of producing a copper clad laminate having a copper foil and a resin bonded at high adhesive force despite the use of a thermoplastic resin having a low dielectric constant. This method includes the steps of: providing a roughened copper foil having at least one roughened surface having fine irregularities composed of acicular crystals containing cupric oxide and cuprous oxide; and bonding a sheet-shaped thermoplastic resin to the roughened surface of the roughened copper foil to provide a copper clad laminate. The roughened surface has a cupric oxide thickness of 1 to 20 nm and a cuprous oxide thickness of 15 to 70 nm, both determined by sequential electrochemical reduction analysis (SERA) at the time of bonding the thermoplastic resin.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: March 26, 2019
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Ayumu Tateoka, Makoto Hosokawa, Shota Kawaguchi
  • Patent number: 10244640
    Abstract: An object of the present invention is to provide a multilayered printed wiring board provided with split through holes excellent in through-hole formability and co-planarity in inner layer wirings around through holes for providing of a conduction isolation portion. To achieve the object, “a copper clad laminate provided with a protective layer for manufacturing of a printed wiring board having a conduction isolation portion electrically isolating a through hole, the copper clad laminate is characterized in that the copper clad laminate is provided with a protective layer on the surface that can be released after forming of the through holes for providing of a conduction isolation portion and filling of the through holes for providing of a conduction isolation portion by a plating resist” is employed.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: March 26, 2019
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Fujio Kuwako, Toshifumi Matsushima, Toshihiro Hosoi, Ayumu Tateoka
  • Publication number: 20190071600
    Abstract: Provided is a new phosphor which can be excited by visible light in a wide band to emit a broad fluorescence spectrum, and also to emit near-infrared light with high intensity. Proposed is a phosphor, which is an oxide comprising Ca, Cu, and Si, wherein the containing molar ratios of the elements are 0.15?Ca/Si<0.25 and 0.13?Cu/Si<0.25.
    Type: Application
    Filed: February 14, 2017
    Publication date: March 7, 2019
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Ikuhiro Ozawa, Takayoshi Mori, Riko Sato, Jun-ichi Itoh
  • Patent number: 10220373
    Abstract: The exhaust gas purification catalyst carrier of the invention includes a modified aluminum borate which contains aluminum borate and at least one addition element selected from the group consisting of a rare earth element and an alkaline earth metal and which has an electronegativity of 2.732 or lower.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: March 5, 2019
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Yunosuke Nakahara, Ohki Houshito, Hironori Iwakura, Yuki Nagao, Masato Machida
  • Patent number: 10212814
    Abstract: An object of the present invention is to improve the laser drilling performance of a copper clad laminate whose black-oxide treated surface is used as a laser drilled surface. To achieve the object, a copper foil provided with a carrier foil 1 comprising a layer structure of the carrier foil 2/the releasing layer 3/the bulk copper layer 4 characterized in that metal element-containing particles 5 are disposed between the releasing layer 3 and the bulk copper layer 4 is employed. If the present copper foil provided with a carrier foil is used, a black-oxide treated layer having a color tone excellent in the laser drilling performance can be formed on the surface of the bulk copper layer in the copper clad laminate manufactured.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: February 19, 2019
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventor: Kazuhiro Yoshikawa
  • Publication number: 20190029125
    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: February 21, 2017
    Publication date: January 24, 2019
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventor: Yoshinori MATSUURA
  • Patent number: 10186706
    Abstract: Provided is a novel positive electrode active material which can effectively suppress the quantity of gas generated by the reaction with an electrolytic solution. Proposed is a positive electrode active material for a lithium secondary battery including positive electrode active material particles obtained by equipping the entire surface or a part of a surface of lithium manganese-containing composite oxide particles (also referred to as the “core particles”) operating at a charging voltage in a region exceeding 4.3 V in a metal Li reference potential with a layer A containing at least titanium (Ti), aluminum (Al), zirconium (Zr), or two or more kinds of these.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: January 22, 2019
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Shinya Kagei, Natsumi Shibamura, Yanko Marinov Todorov, Yoshimi Hata
  • Publication number: 20190013212
    Abstract: There is provided a copper foil provided with a carrier providing excellent chemical resistance against the copper flash etching solution during the formation of the wiring layer on the surface of the coreless support and excellent visibility of the wiring layer due to high contrast to the antireflective layer in image inspection after copper flash etching. The copper foil provided with a carrier comprises a carrier; a release layer provided on the carrier; an antireflective layer provided on the release layer and composed of at least one metal selected from the group consisting of Cr, W, Ta, Ti, Ni and Mo; and an extremely-thin copper layer provided on the antireflective layer; wherein at least the surface adjacent to the extremely-thin copper layer of the antireflective layer comprises an aggregate of metal particles.
    Type: Application
    Filed: February 21, 2017
    Publication date: January 10, 2019
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventor: Yoshinori MATSUURA
  • Publication number: 20180376602
    Abstract: There is provided a copper foil with a carrier particularly suitable for a circuit forming process for removing a carrier after laser drilling and desmear treatment, in detail, a copper foil with a carrier having high heat press resistance (heat resistance) of the carrier, laser drilling performance, corrosion resistance of the carrier against the desmear treatment, corrosion resistance of a release layer against the desmear treatment, and carrier release strength. The copper foil with a carrier comprises a carrier comprising at least one resin selected from polyethylene naphthalate (PEN) resins, polyethersulfone (PES) resins, polyimide resins, and polyphenylene sulfide resins; a silicon layer provided on the carrier, the silicon layer mainly containing silicon; a carbon layer provided on the silicon layer, the carbon layer mainly containing carbon; and an extremely thin copper layer provided on the carbon layer.
    Type: Application
    Filed: December 1, 2016
    Publication date: December 27, 2018
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventor: Yoshinori MATSUURA
  • Patent number: 10141570
    Abstract: The present invention relates to a positive electrode active material including a lithium metal composite oxide having a layer crystal structure, and provides a novel positive electrode active material for a lithium secondary cell, which can suppress the reaction with an electrolyte solution and can raise the charge-discharge cycle ability of the cell, and can make good the output characteristics of the cell.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: November 27, 2018
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Daisuke Washida, Toshikazu Matsuyama, Tetsuya Mitsumoto, Daisuke Inoue, Hideaki Matsushima, Yoshimi Hata, Hitohiko Ide, Shinya Kagei
  • Publication number: 20180305217
    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. Fluoline 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: Application
    Filed: September 4, 2015
    Publication date: October 25, 2018
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yoshihiro YONEDA, Akira AOKI, Kenji SUZUOKA
  • Publication number: 20180223412
    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: Application
    Filed: April 6, 2016
    Publication date: August 9, 2018
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Satoshi MOGI, Hiroaki TSUYOSHI