Patents Assigned to Taiheiyo Cement Corporation
-
Patent number: 12186704Abstract: Provided is a simple and low-cost method for efficiently fixing a sufficient amount of carbon dioxide contained in a carbon dioxide-containing gas (e.g. a plant exhaust gas). The method of fixing carbon dioxide comprises a contact step of bringing a carbon dioxide-containing gas having a temperature of 350° C. or more into contact with a cementitious hardened body to fix carbon dioxide in the carbon dioxide-containing gas to the cementitious hardened body. The carbon dioxide-containing gas may be a gas that is free from being supplied with moisture before the contact step and during the contact step. One of examples of the carbon dioxide-containing gas is a plant exhaust gas.Type: GrantFiled: December 2, 2019Date of Patent: January 7, 2025Assignees: TAIHEIYO CEMENT CORPORATION, THE UNIVERSITY OF TOKYOInventors: Dianchao Wang, Takafumi Noguchi, Takahito Nozaki, Yasuhide Higo
-
Patent number: 12145895Abstract: To provide a fractionating device capable of stably fractionating powders such as cement raw materials by a simple configuration. A fractionating device 1 for fractionating some of a powder (cement raw material) R falling in a chute (main body) 2, wherein the fractionating device is equipped with a screw conveyor 5 which passes through the chute, a part of a casing 5a opening inside the chute, and receives part of the powder from an opening (inlet) 5b, and a collision separation member (collision separation rod) 4 which is provided above the screw conveyor in the chute and collides with an object when an object of a predetermined size or larger falls, and prevents the object from falling directly onto the screw conveyor.Type: GrantFiled: April 4, 2018Date of Patent: November 19, 2024Assignee: TAIHEIYO ENGINEERING CORPORATION TAIHEIYO CEMENT CORPORATIONInventors: Yasushi Yamamoto, Yoshiaki Maeda, Kazuhiko Yamaguchi, Kunio Motoyoshi, Takayuki Kimura, Kouji Kamada, Kazushi Izumi, Naoki Ueno
-
Patent number: 12054426Abstract: A hydraulic composition for an additive manufacturing device, the hydraulic composition containing at least sand, an inorganic binder, and polyvinyl alcohol, wherein the hydraulic composition for an additive manufacturing device satisfies conditions (1) and (2). (1) The mass ratio of sand/(inorganic binder+polyvinyl alcohol) is 4 to 12. (2) The mass ratio of polyvinyl alcohol/inorganic binder is 0.1 to 0.4. The hydraulic composition for an additive manufacturing device also preferably satisfies condition (3). (3) The mass ratio of water/(inorganic binder+polyvinyl alcohol) is 0.30 to 1.30.Type: GrantFiled: December 11, 2019Date of Patent: August 6, 2024Assignee: TAIHEIYO CEMENT CORPORATIONInventors: Yoshifumi Ohgi, Yusuke Ishii
-
Patent number: 11878268Abstract: Provided is a method of fixing a sufficient amount of carbon dioxide contained in a carbon dioxide-containing gas (e.g., a plant exhaust gas) simply, at low cost, and efficiently. The method of fixing carbon dioxide includes a contact step of bringing a carbon dioxide-containing gas into contact with powdery or grainy particles, which are each formed of a cementitious hardened body and each have a particle size of 40 mm or less, at a temperature of from 75° C. to 110° C. to fix carbon dioxide contained in the carbon dioxide-containing gas to the powdery or grainy particles, wherein the relative humidity of the carbon dioxide-containing gas is adjusted in accordance with the particle size of the powdery or grainy particles and the state of adjustment of moisture content of the powdery or grainy particles before the contact step.Type: GrantFiled: December 2, 2019Date of Patent: January 23, 2024Assignees: TAIHEIYO CEMENT CORPORATION, THE UNIVERSITY OF TOKYOInventors: Dianchao Wang, Takafumi Noguchi, Takahito Nozaki, Yasuhide Higo
-
Patent number: 11742485Abstract: 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: GrantFiled: July 18, 2019Date of Patent: August 29, 2023Assignee: TAIHEIYO CEMENT CORPORATIONInventors: Hiroki Yamashita, Tomoki Hatsumori, Takaaki Ogami
-
Patent number: 11655190Abstract: The present invention has solved the problems of conventional molding materials, and provides a hydraulic composition for additive manufacturing devices having high strength development, particularly high early strength development, and less generation of gas defect and graphite spheroidization defect. Specifically, the hydraulic composition for additive manufacturing devices of the present invention at least contains calcium aluminate. It is preferable that the hydraulic composition contain 0.5-10 parts by mass of gypsum with respect to 100 parts by mass of the calcium aluminate.Type: GrantFiled: June 28, 2017Date of Patent: May 23, 2023Assignee: TAIHEIYO CEMENT CORPORATIONInventors: Yoshifumi Ohgi, Yoji Ogawa, Makoto Tanimura, Atsuya Toba, Hayato Suzuki
-
Patent number: 11646405Abstract: 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: GrantFiled: September 17, 2015Date of Patent: May 9, 2023Assignee: TAIHEIYO CEMENT CORPORATIONInventors: Hiroki Yamashita, Tomoki Hatsumori, Atsushi Nakamura, Takaaki Ogami
-
Publication number: 20220355352Abstract: A binder composition for immobilizing a toxic-containing material. This composition has excellent strength developing properties at low temperature and is capable of solidifying soil to suppress the elution of toxic materials from the soil.Type: ApplicationFiled: October 22, 2020Publication date: November 10, 2022Applicants: Rutgers, The State University of New Jersey, Taiheiyo Cement CorporationInventors: Takahito Nozaki, Yasuhide Higo, Robert Miskewitz, Ali Maher
-
Patent number: 11428402Abstract: A cement kiln burner device includes a powdered-solid-fuel flow channel, a first air flow channel placed inside the powdered-solid-fuel flow channel to be adjacent to the powdered-solid-fuel flow channel, having means for swirling an air flow, an outer air flow-channel group placed concentrically in an outermost side outside the powdered-solid-fuel flow channel, having three or more second air flow channels adapted to form means for straightly forwarding an air flow, and a combustible-solid-waste flow channel placed inside the first air flow channel. The second air flow channels are placed proximally to each other in a radial direction within a range where air flows ejected from the respective second air flow channels are merged to form a single air flow, and are configured to control flow rates of the air flow ejected from the respective second air flow channels, independently for each second air flow channel.Type: GrantFiled: March 19, 2019Date of Patent: August 30, 2022Assignee: Taiheiyo Cement CorporationInventors: Yuya Sano, Kana Horiba, Hideyuki Sugaya
-
Patent number: 11421871Abstract: There is provided a combustible waste injection device and a method for operating the same which can suppress a landing combustion of a combustible waste and suppress excessive change of a flame state from a cement kiln burner even if a rate of using the combustible waste fluctuates. The combustible waste injection device according to the present invention is provided with a combustible waste flow channel which is arranged in an inner side of the air flow channel in an innermost shell, is installed in parallel to an axial direction of the cement kiln burner device and is provided for flow feeding a combustible waste flow, and an assist air inflow port which can flow an assist air flow into the combustible waste flow channel toward an axis center of the combustible waste flow channel in the vicinity of an injection port of the combustible waste flow channel, and the assist air inflow port is arranged at a plurality of positions in relation to a circumferential direction.Type: GrantFiled: August 14, 2019Date of Patent: August 23, 2022Assignee: TAIHEIYO CEMENT CORPORATIONInventors: Yuya Sano, Kouichi Naitou, Kensuke Kitazawa, Hidenori Tsukidate
-
Patent number: 11306915Abstract: A cement kiln burner device includes a powdered-solid-fuel flow channel having means for swirling a powdered-solid-fuel flow; a first air flow channel placed inside the powdered-solid-fuel flow channel to be adjacent to the powdered-solid-fuel flow channel having means for swirling an air flow; a second air flow channel placed in an outermost side outside the powdered-solid-fuel flow channel having means for straightly forwarding an air flow; and a combustible-solid-waste flow channel placed inside the first air flow channel. The second air flow channel is divided in a circumferential direction into four or more opening portions adapted to form ports for injecting air flows, and is configured to control flow rates of the air flows ejected from the opening portions, independently for each opening portion.Type: GrantFiled: September 26, 2018Date of Patent: April 19, 2022Assignee: Taiheiyo Cement CorporationInventors: Yuya Sano, Kana Horiba, Kouichi Naitou
-
Patent number: 11173539Abstract: A hydraulic composition for an additive manufacturing device has an excellent initial flexural strength development property and dimensional stability. The hydraulic composition includes 1.5 to 14 parts by mass of a polymer with respect to 100 parts by mass of an inorganic binder. In addition, in a hydraulic composition for an additive manufacturing device, the inorganic binder may contain 50 to 100 mass % of a calcium aluminate with respect to 100 mass % of the entire inorganic binder, and in a hydraulic composition for an additive manufacturing device the inorganic binder, may contain 0 to 50 mass % of rapid hardening cement with respect to 100 mass % of the entire inorganic binder.Type: GrantFiled: July 30, 2018Date of Patent: November 16, 2021Assignee: TAIHEIYO CEMENT CORPORATIONInventors: Yoshifumi Ohgi, Yoji Ogawa, Yusuke Ishii, Takeshi Nakazaki, Shinya Naka
-
Patent number: 11112111Abstract: A cement kiln burner device includes a powdered-solid-fuel flow channel having means for swirling a powdered-solid-fuel flow; a first air flow channel placed outside the powdered-solid-fuel flow channel having means for swirling an air flow; a second air flow channel placed outside the first air flow channel having means for straightly forwarding an air flow; a third air flow channel placed inside the powdered-solid-fuel flow channel having means for swirling an air flow; and a combustible-solid-waste flow channel placed inside the third air flow channel. The second air flow channel includes an opening portion forming a port for injecting an air flow, and a closed portion covered for preventing an air flow from passing therethrough. The opening portion and the closed portion are alternately arranged in a circumferential direction.Type: GrantFiled: September 26, 2018Date of Patent: September 7, 2021Assignee: Taiheiyo Cement CorporationInventors: Yuya Sano, Kana Horiba, Kouichi Naitou
-
Patent number: 11029025Abstract: There is provided a combustible waste injection device and a method for operating the same which can suppress a landing combustion of a combustible waste and suppress excessive change of a flame state from a cement kiln burner even if a rate of using the combustible waste fluctuates. A combustible waste injection device according to the present invention has a combustible waste flow channel which is arranged in an inner side of the air flow channel in an innermost shell, is installed in parallel to an axial direction of the cement kiln burner device and is provided for flow feeding a combustible waste flow, and the combustible waste flow channel has an inclined surface having a rising slope toward the injection port near the injection port in such a manner that a flow channel width in a vertical direction is narrowed toward the injection port.Type: GrantFiled: August 14, 2019Date of Patent: June 8, 2021Assignee: Taiheiyo Cement CorporationInventors: Yuya Sano, Kouichi Naitou, Hidenori Tsukidate, Hideyuki Sugaya
-
Patent number: 11014092Abstract: An apparatus and method to efficiently recover noble metals such as gold, silver and copper and aluminum from incineration ash, and effectively use ash after recovering the noble metals and others. An incineration ash treatment apparatus 1 including: a crusher for crushing an incineration ash A1 to be less or equal to 5 mm in maximum particle diameter, or/and a classifier for classifying an incineration ash to obtain an incineration ash whose maximum particle diameter is less or equal to 5 mm; an eddy current separator 8 for separating an incineration ash whose maximum particle diameter is less or equal to 5 mm discharged from the crusher or/and the classifier into a conductor E and a nonconductor I; a specific gravity separator for separating a conductor discharged from the eddy current separator 8 into a high gravity material H2 and a low gravity material L2. The specific gravity separator can be an air table 10.Type: GrantFiled: August 24, 2017Date of Patent: May 25, 2021Assignee: TAIHEIYO CEMENT CORPORATIONInventors: Kou Takizawa, Tomonori Takemoto, Takashi Hanada, Yasuyuki Ishida
-
Patent number: 10964950Abstract: 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) LiFeaMnbM1cPO4, formula (B) Li2FedMneM2fSiO4, or formula (C) NaFegMnhQiPO4.Type: GrantFiled: September 17, 2015Date of Patent: March 30, 2021Assignee: TAIHEIYO CEMENT CORPORATIONInventors: Hiroki Yamashita, Tomoki Hatsumori, Atsushi Nakamura, Takaaki Ogami
-
Patent number: 10868295Abstract: 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: GrantFiled: May 18, 2018Date of Patent: December 15, 2020Assignees: TAIHEIYO CEMENT CORPORATION, DENSO CORPORATIONInventors: Hiroki Yamashita, Yuko Hirayama, Toshihito Shimada, Takaaki Ogami, Shuhei Yoshida, Satoru Suzuki
-
Method of measuring temperature of an object to be measured, dust temperature and dust concentration
Patent number: 10852195Abstract: A first radiance meter is directed toward an object to be measured, radiance is measured through a space where dust is present with the use of at least two wavelengths by the first radiance meter, second radiance meters which are equal in number to one or more objects having temperatures different from that of the object to be measured are directed toward the objects, radiances are measured through the space with the use of at least two wavelengths by the second radiance meters respectively, and a temperature of the object to be measured, a temperature of the dust, and concentration of the dust are measured from the radiances measured by the first radiance meter and the second radiance meters.Type: GrantFiled: August 30, 2016Date of Patent: December 1, 2020Assignees: MITSUBISHI MATERIALS CORPORATION, UBE INDUSTRIES, LTD., SUMITOMO OSAKA CEMENT CO., LTD., TAIHEIYO CEMENT CORPORATIONInventors: Hirokazu Shima, Yoshiaki Takata -
Publication number: 20200161632Abstract: 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: ApplicationFiled: May 18, 2018Publication date: May 21, 2020Applicants: TAIHEIYO CEMENT CORPORATION, DENSO CORPORATIONInventors: Hiroki YAMASHITA, Yuko HIRAYAMA, Toshihito SHIMADA, Takaaki OGAMI, Shuhei YOSHIDA, Satoru SUZUKI
-
METHOD OF MEASURING TEMPERATURE OF AN OBJECT TO BE MEASURED, DUST TEMPERATURE AND DUST CONCENTRATION
Publication number: 20200141809Abstract: A first radiance meter is directed toward an object to be measured, radiance is measured through a space where dust is present with the use of at least two wavelengths by the first radiance meter, second radiance meters which are equal in number to one or more objects having temperatures different from that of the object to be measured are directed toward the objects, radiances are measured through the space with the use of at least two wavelengths by the second radiance meters respectively, and a temperature of the object to be measured, a temperature of the dust, and concentration of the dust are measured from the radiances measured by the first radiance meter and the second radiance meters.Type: ApplicationFiled: August 30, 2016Publication date: May 7, 2020Applicants: MITSUBISHI MATERIALS CORPORATION, UBE INDUSTRIES, LTD., SUMITOMO OSAKA CEMENT CO., LTD., TAIHEIYO CEMENT CORPORATIONInventors: Hirokazu SHIMA, Yoshiaki TAKATA