Patents Assigned to Taiheiyo Cement Corporation
  • Publication number: 20200161632
    Abstract: There is provided a positive electrode active material composite for a lithium-ion secondary battery, in which, when using as a positive electrode active material of the lithium-ion secondary battery, it can effectively improve high-temperature cycle characteristics. In the positive electrode active material composite for a lithium-ion secondary battery, only on the surface of a lithium transition metal oxide secondary particle (A) composed of one or more of the lithium transition metal oxide particles represented by the following formula (I): LiNiaCobMncM1xO2 . . . (I) or the following formula (II): LiNidCOeAlfM2yO2 . . . (II), a lithium-based polyanion particles (B) is composited with lithium transition metal oxide particles under a specific condition, the lithium-based polyanion particles (B) being represented by the following formula (III) or (III)?: LigMnhFeiM3zPO4 . . . (III) or Mnh?Fei?M3z?PO4 . . . (III)? and being supporting carbon (C) on a surface thereof.
    Type: Application
    Filed: May 18, 2018
    Publication date: May 21, 2020
    Applicants: TAIHEIYO CEMENT CORPORATION, DENSO CORPORATION
    Inventors: Hiroki YAMASHITA, Yuko HIRAYAMA, Toshihito SHIMADA, Takaaki OGAMI, Shuhei YOSHIDA, Satoru SUZUKI
  • Patent number: 10601042
    Abstract: The present invention provides a positive electrode active substance for a secondary cell, the positive electrode active substance capable of suppressing adsorption of water effectively in order to obtain a high-performance lithium ion secondary cell or sodium ion secondary cell. The present invention also provides a method for producing the positive electrode active substance for a secondary cell. That is, the present invention is a positive electrode active substance for a secondary cell, in which a water-insoluble electrically conductive carbon material and carbon obtained by carbonizing a water-soluble carbon material are supported on a compound containing at least iron or manganese, the compound represented by formula (A) LiFeaMnbMnbM1cPO4, formula (B) Li2FedMneM2fSiO4, or formula (C) NaFegMnhQiPO4.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: March 24, 2020
    Assignee: TAIHEIYO CEMENT CORPORATION
    Inventors: Hiroki Yamashita, Tomoki Hatsumori, Atsushi Nakamura, Takaaki Ogami
  • Patent number: 10577282
    Abstract: Provided is a cement composition that has high fluidity (for example, a 0-drop flow value of 200 mm or more) before curing and exhibits high compressive strength (for example, 320 N/mm2 or more) after curing. The cement composition includes a cement, a silica fume having a BET specific surface area of from 10 m2/g to 25 m2/g, an inorganic powder having a 50% cumulative particle size of from 0.8 ?m to 5 ?m, a fine aggregate having a maximum particle size of 1.2 mm or less, a water reducing agent, an antifoaming agent, and water. The ratio of the cement is from 55 vol % to 65 vol %, the ratio of the silica fume is from 5 vol % to 25 vol %, and the ratio of the inorganic powder is from 15 vol % to 35 vol % in the total amount of 100 vol % of the cement, the silica fume, and the inorganic powder.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: March 3, 2020
    Assignee: TAIHEIYO CEMENT CORPORATION
    Inventors: Risa Nakayama, Katsuya Kono, Katsuhiko Tada, Hiroaki Mori, Shingo Sugiyama, Shinpei Maehori
  • Publication number: 20190348680
    Abstract: The present invention provides a positive-electrode active material for a lithium-ion secondary cell or a sodium-ion secondary cell, which can effectively exhibit more excellent charge/discharge characteristics; and a method for manufacturing the positive-electrode active material. Namely, the present invention relates to a positive-electrode active material for a secondary cell comprising an oxide represented by formula (A): LiFeaMnbMcPO4, formula (B): LiFeaMnbMcSiO4, or formula (C): NaFegMnhQiPO4; and carbon derived from a cellulose nanofiber supported thereon.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 14, 2019
    Applicant: TAIHEIYO CEMENT CORPORATION
    Inventors: Hiroki YAMASHITA, Tomoki HATSUMORI, Takaaki OGAMI
  • Patent number: 10461330
    Abstract: The present invention provides a positive-electrode active material for a lithium-ion secondary cell, which can effectively exhibit more excellent charge/discharge characteristics; and a method for manufacturing the positive-electrode active material. Namely, the present invention relates to a positive-electrode active material for a secondary cell comprising an oxide represented by formula (A): LifeaMnbMcPO4; and carbon derived from a cellulose nanofiber supported thereon.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: October 29, 2019
    Assignee: TAIHEIYO CEMENT CORPORATION
    Inventors: Hiroki Yamashita, Tomoki Hatsumori, Takaaki Ogami
  • Patent number: 10351476
    Abstract: Provided is a cement composition that has high fluidity (for example, a 0-drop flow value of 200 mm or more) before curing and exhibits high compressive strength (for example, 320 N/mm2 or more) after curing. The cement composition includes a cement, a silica fume having a BET specific surface area of from 10 m2/g to 25 m2/g, an inorganic powder having a 50% cumulative particle size of from 0.8 ?m to 5 ?m, a fine aggregate having a maximum particle size of 1.2 mm or less, a water reducing agent, an antifoaming agent, and water. The ratio of the cement is from 55 vol % to 65 vol %, the ratio of the silica fume is from 5 vol % to 25 vol %, and the ratio of the inorganic powder is from 15 vol % to 35 vol % in the total amount of 100 vol % of the cement, the silica fume, and the inorganic powder.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: July 16, 2019
    Assignee: TAIHEIYO CEMENT CORPORATION
    Inventors: Risa Nakayama, Katsuya Kono, Katsuhiko Tada, Hiroaki Mori, Shingo Sugiyama, Shinpei Maehori
  • Patent number: 10066873
    Abstract: [Problems] A combustion gas extraction probe that is capable of preventing burnout of a head metal portion of a probe, capable of rapidly cooling a high-temperature gas in a uniform manner in a probe, and whose outer diameter can be kept small. [Means for Solving Problems] A combustion gas extraction probe (4) having a hollow-cylindrical inner tube (4a) in which a high-temperature combustion gas flows, a hollow-cylindrical outer tube (4b) surrounding the inner tube (4a), a low-temperature gas discharge hole (4c) provided in the inner tube (4a), and a low-temperature gas supply means (9) for supplying a low-temperature gas between the inner tube (4a) and the outer tube (4b) and discharging the low-temperature gas from the discharge hole (4c) into the direction that is substantially perpendicular to the sucking direction of the high-temperature combustion gas and is toward the center of the flow of said high-temperature combustion gas.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: September 4, 2018
    Assignee: Taiheiyo Cement Corporation
    Inventors: Shinichiro Saito, Takahiko Suzuki
  • Publication number: 20180083285
    Abstract: The present invention provides a positive electrode active substance for a secondary cell, the positive electrode active substance capable of suppressing adsorption of water effectively in order to obtain a high-performance lithium ion secondary cell or sodium ion secondary cell. The present invention also provides a method for producing the positive electrode active substance for a secondary cell. That is, the present invention is a positive electrode active substance for a secondary cell, in which one or two selected from the group consisting of a water-insoluble electrically conductive carbon material and carbon obtained by carbonizing a water-soluble carbon material, and 0.1 to 5 mass % of a metal fluoride are supported on a compound containing at least iron or manganese, the compound represented by formula (A) LiFenMnbM1cPO4, formula (B) Li2FedMneM2fSiO4, or formula (C) NaFegMnhQiPO4.
    Type: Application
    Filed: September 17, 2015
    Publication date: March 22, 2018
    Applicant: TAIHEIYO CEMENT CORPORATION
    Inventors: Hiroki YAMASHITA, Tomoki HATSUMORI, Atsushi NAKAMURA, Takaaki OGAMI
  • Publication number: 20180083280
    Abstract: The present invention provides a positive electrode active substance for a secondary cell, the positive electrode active substance capable of suppressing adsorption of water effectively in order to obtain a high-performance lithium ion secondary cell or sodium ion secondary cell. The present invention also provides a method for producing the positive electrode active substance for a secondary cell. That is, the present invention is a positive electrode active substance for a secondary cell, in which a water-insoluble electrically conductive carbon material and carbon obtained by carbonizing a water-soluble carbon material are supported on an oxide containing at least iron or manganese, the oxide represented by formula (A) LiFeaMnbMcPO4, formula (B) Li2FedMneNfSiO4, or formula (C) NaFegMnhQiPO4.
    Type: Application
    Filed: September 17, 2015
    Publication date: March 22, 2018
    Applicant: TAIHEIYO CEMENT CORPORATION
    Inventors: Hiroki YAMASHITA, Tomoki HATSUMORI, Atsushi NAKAMURA, Takaaki OGAMI
  • Publication number: 20180053929
    Abstract: A positive electrode active substance for a secondary cell, where the positive electrode active substance is capable of suppressing adsorption of water effectively in order to obtain a high-performance lithium ion secondary cell or sodium ion secondary cell. The positive electrode active substance contains 0.3 to 5 mass % of graphite, 0.1 to 4 mass % of carbon obtained by carbonizing a water-soluble carbon material, or 0.1 to 5 mass % of a metal fluoride is supported on a composite containing a compound which contains at least iron or manganese, where the compound is represented by formula (A) LiFeaMnbMcPO4, formula (B) Li2FedMneNfSiO4, or formula (C) NaFegMnhQiPO4, and carbon obtained by carbonizing a cellulose nanofiber.
    Type: Application
    Filed: September 17, 2015
    Publication date: February 22, 2018
    Applicant: TAIHEIYO CEMENT CORPORATION
    Inventors: Hiroki YAMASHITA, Tomoki HATSUMORI, Atsushi NAKAMURA, Takaaki OGAMI
  • Patent number: 9863812
    Abstract: A first radiance meter that is provided so as to face an object in an atmosphere in which there is dust and measures the radiance of the object and a second radiance meter that is provided so as not to oppose the object and measures the radiance of the dust between the object and the first radiance meter are used to measure the temperature of the object on the basis of the object radiance that has been measured by the first radiance meter and the radiance of the dust between the object and the first radiance meter that has been measured by the second radiance meter.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: January 9, 2018
    Assignees: MITSUBISHI MATERIALS CORPORATION, UBE INDUSTRIES, LTD., SUMITOMO OSAKA CEMENT CO., LTD., TAIHEIYO CEMENT CORPORATION
    Inventors: Hirokazu Shima, Yoshiaki Takata
  • Patent number: 9835493
    Abstract: A first radiance meter that is provided so as to face an object in an atmosphere in which there is dust and measures the radiance of the object and a second radiance meter that is provided so as not to oppose the object and measures the radiance of the dust between the object and the first radiance meter are used to measure the temperature of the object on the basis of the object radiance that has been measured by the first radiance meter and the radiance of the dust between the object and the first radiance meter that has been measured by the second radiance meter.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: December 5, 2017
    Assignees: MITSUBISHI MATERIALS CORPORATION, UBE INDUSTRIES, LTD., SUMITOMO OSAKA CEMENT CO., LTD., TAIHEIYO CEMENT CORPORATION
    Inventors: Hirokazu Shima, Yoshiaki Takata
  • Patent number: 9816200
    Abstract: A silicon carbide powder which, when used as a raw material in a sublimation recrystallization method, enables improvement in productivity of a silicon carbide single crystal by exhibiting a high sublimation rate and allowing a small amount of silicon carbide to remain without being sublimated, and enables an increase in size of the silicon carbide single crystal (for example, a single crystal wafer). The silicon carbide powder has a Blaine specific surface area of from 250 cm2/g to 1,000 cm2/g and a ratio of a silicon carbide powder having a particle size of more than 0.70 mm and 3.00 mm or less of 50 vol % or more with respect to a total amount of the silicon carbide powder. When a silicon carbide powder accommodated in a crucible is heated to be sublimated, a silicon carbide single crystal is formed on a seed crystal provided on an undersurface of a lid.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: November 14, 2017
    Assignees: TAIHEIYO CEMENT CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Kenta Masuda, Kouki Ichitsubo, Masakazu Suzuki, Kiyoshi Nonaka, Tomohisa Kato, Hideaki Tanaka
  • Publication number: 20170301919
    Abstract: The present invention provides a positive-electrode active material for a lithium-ion secondary cell or a sodium-ion secondary cell, which can effectively exhibit more excellent charge/discharge characteristics; and a method for manufacturing the positive-electrode active material. Namely, the present invention relates to a positive-electrode active material for a secondary cell comprising an oxide represented by formula (A): LiFeaMnbMcPO4, formula (B): LiFeaMnbMcSiO4, or formula (C): NaFegMnhQiPO4; and carbon derived from a cellulose nanofiber supported thereon.
    Type: Application
    Filed: September 15, 2015
    Publication date: October 19, 2017
    Applicant: TAIHEIYO CEMENT CORPORATION
    Inventors: Hiroki YAMASHITA, Tomoki HATSUMORI, Takaaki OGAMI
  • Patent number: 9695086
    Abstract: In accordance with the present invention, there is provided a treat chlorine bypass dust while preventing increases in chemical cost and concentrations of heavy metals in clinker, and ensuring stability in quality of cement. In a chlorine bypass facility 1 extracting a part G of combustion gas, while cooling it, from a kiln exhaust gas passage, which runs from an inlet end of a cement kiln to a bottom cyclone, and recovering a high chlorine concentration chlorine bypass dust D5 from the extracted gas G1, a slurry S containing chlorine bypass dust and SO2 gas or/and CO2 gas are contacted with each other to obtain solid content. The slurry containing chlorine bypass dust and an exhaust gas from the chlorine bypass facility or/and the exhaust gas from the cement kiln can be contacted with each other, and the solid content can be fed to a cement finishing process, which allows cement with low CaO and Ca(OH)2 contents and with stable property such as setting time to be produced.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: July 4, 2017
    Assignee: TAIHEIYO CEMENT CORPORATION
    Inventors: Junichi Terasaki, Kenzaburou Kondou
  • Patent number: 9679244
    Abstract: Provided is a method capable of predicting the quality of cement in a short time period and with high accuracy. The method of predicting the quality or manufacturing conditions of cement through use of a neural network including an input layer and an output layer includes: performing learning of the neural network for a sufficiently large number of times of learning such that ?L<?M is obtained, using learning data and monitor data; then repeating the learning of the neural network until ?L??M is obtained while the number of times of learning is decreased; inputting specific observation data to the input layer of the neural network in which a judgment value for analysis degree obtained from the neural network after the learning is less than a preset value; and outputting an estimated value of specific evaluation data from the output layer of the neural network.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: June 13, 2017
    Assignee: TAIHEIYO CEMENT CORPORATION
    Inventors: Maiko Ohno, Daisuke Kurokawa, Hiroshi Hirao
  • Patent number: 9650247
    Abstract: A method for efficiently producing a high-purity metal hydride without contamination of other metals while initiating reaction rapidly is provided. A method for producing a metal hydride from a metal selected from the group consisting of Group 2 metals and Group 3 metals comprising: (A) charging the pressure resistant container with the metal, introducing hydrogen into the container, and heating the container to initiate reaction, wherein a gauge pressure (a) is set to 0.1 to 1.5 MPa, a heating temperature (b) is set to 50 to 250° C., and a product of the gauge pressure and the heating temperature, a×b, is set in the range of 20 to 100; (B) stopping the introduction of hydrogen to allow the reaction to proceed when the temperature in the reaction container is increased to a temperature higher by 10 to 100° C. than the heating temperature; (C) introducing hydrogen of 0.1 to 1.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: May 16, 2017
    Assignee: TAIHEIYO CEMENT CORPORATION
    Inventors: Tetsuya Ishimoto, Shoji Suzuki, Katsumi Matsui, Tomoki Hatsumori, Kazuhiko Tokoyoda
  • Patent number: 9653190
    Abstract: To provide a device for removing radioactive cesium from waste material containing radioactive cesium, doing so at low energy and in a dependable manner. The removal device 1 for radioactive cesium is provided with: a rotary kiln 41 which is provided with a burner 41b supplying from the kiln outlet an organic matter O3 contaminated with radioactive cesium, and an inorganic matter charging port 41a supplying from the kiln inlet inorganic matter S4 contaminated with radioactive cesium, and which is employed to burn the organic matter O3 together with the inorganic matter S4; and a recovery device cooling tower 51, a cyclone 52, a bag filter 53 for recovering cesium that has volatilized in the rotary kiln. A drying/crushing device (dryer 21, crusher 22) for drying and crushing the organic matter O1 prior to charging the radioactive cesium-contaminated organic matter to the rotary kiln can be provided.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: May 16, 2017
    Assignee: Taiheiyo Cement Corporation
    Inventors: Yoshihisa Tanaka, Tetsuo Ogiri, Kenichi Honma, Soichiro Okamura, Takuya Shindo
  • Patent number: 9556035
    Abstract: A particle formed of silica and carbon having a low impurity content and an excellent reactivity is provided. Also provided is a method of producing a silica and carbon-containing material including: (B) a carbon mixing step of mixing an aqueous alkali silicate solution having a silicon concentration within the liquid portion of at least 10 wt % with carbon so as to obtain a carbon-containing aqueous alkali silicate solution; and (C) a silica recovery step of mixing the carbon-containing aqueous alkali silicate solution with a mineral acid so as to cause carbon and silicon within the liquid portion to precipitate as particles formed of silica and carbon and thus obtaining a particle-containing liquid substance, then solid-liquid separating the liquid substance so as to obtain a solid portion of a silica and carbon-containing material which is an assembly of particles formed of silica and carbon and a liquid portion containing impurities.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: January 31, 2017
    Assignee: TAIHEIYO CEMENT CORPORATION
    Inventors: Kouki Ichitsubo, Kenta Masuda, Masakazu Suzuki, Kohei Kawano, Jun Kumasaka
  • Publication number: 20170023411
    Abstract: A first radiance meter that is provided so as to face an object in an atmosphere in which there is dust and measures the radiance of the object and a second radiance meter that is provided so as not to oppose the object and measures the radiance of the dust between the object and the first radiance meter are used to measure the temperature of the object on the basis of the object radiance that has been measured by the first radiance meter and the radiance of the dust between the object and the first radiance meter that has been measured by the second radiance meter.
    Type: Application
    Filed: February 25, 2015
    Publication date: January 26, 2017
    Applicants: MITSUBISHI MATERIALS CORPORATION, UBE INDUSTRIES, LTD., SUMITOMO OSAKA CEMENT CO., LTD., TAIHEIYO CEMENT CORPORATION
    Inventors: Hirokazu SHIMA, Yoshiaki TAKATA