Patents by Inventor Takashi Kuboki

Takashi Kuboki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11139465
    Abstract: According to one embodiment, there is provided a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode including a negative electrode active material layer, and a non-aqueous electrolyte. The negative electrode active material layer contains carbon dioxide and releases the carbon dioxide in the range of 0.1 ml to 5 ml per 1 g when heated at 200° C. for 1 minute.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: October 5, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shinsuke Matsuno, Hidesato Saruwatari, Dai Yamamoto, Asato Kondo, Hiromichi Kuriyama, Hideki Satake, Takashi Kuboki
  • Patent number: 11135544
    Abstract: The embodiments provide an acidic gas absorbent, an acidic gas removal method using the absorbent, and an acidic gas removal apparatus using the absorbent. The absorbent absorbs an acidic gas in a large amount and is hardly diffused.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: October 5, 2021
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Akiko Suzuki, Yoshihiko Nakano, Reiko Yoshimura, Toshihiro Imada, Takashi Kuboki, Kenji Sano, Shinji Murai, Mitsuru Udatsu
  • Publication number: 20210296034
    Abstract: A superconducting coil of embodiments includes a substrate having a curved surface, a superconducting wire wound on the curved surface, the superconducting wire having a first region and a second region facing the first region, a first resin layer surrounding the superconducting wire and including a plurality of first particles and first resin surrounding the first particles, and a second resin layer positioned between the first region and the second region, the second resin layer covering the first resin layer and including a plurality of second particles and second resin surrounding the second particles and being made of material different from material of the first resin.
    Type: Application
    Filed: August 31, 2020
    Publication date: September 23, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Mariko HAYASHI, Takashi KUBOKI
  • Publication number: 20210291108
    Abstract: The embodiments provide an acidic gas absorbent kept from deterioration, an acidic gas removal method using the absorbent, and an acidic gas removal apparatus using the same. The acidic gas absorbent contains an amine compound and water, and further contains superfine bubble containing inert gas wherein an average diameter of said superfine bubble is 150 nm or less. The acidic gas removal method provided here employs that absorbent. The acidic gas removal apparatus is equipped with a unit for introducing the superfine bubbles into the absorbent.
    Type: Application
    Filed: September 8, 2020
    Publication date: September 23, 2021
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Akiko SUZUKI, Yoshihiko NAKANO, Reiko YOSHIMURA, Toshihiro IMADA, Takashi KUBOKI, Kenji SANO, Mitsuru UDATSU
  • Patent number: 11123683
    Abstract: A carbon dioxide absorbent of an embodiment includes a heterocyclic amine expressed by Formula (1), and the heterocyclic amine having a pKa of any one amino group included in a heterocyclic ring in Formula (1) in a range of 7.0 or more to 8.6 or less and an organic solvent having a boiling point of 150° C. or more at 1 atm. A total mass of the heterocyclic amine and the organic solvent is 70 mass % or more to 100 mass % or less of the carbon dioxide absorbent. Each of R1 to R4 in Formula (1) is H, oxygen double-bonded with carbon of the heterocyclic ring, CH3, OH, or an alkyl chain optionally including a functional group. X1 in Formula (1) is H, CH3, CO, C(O)OC2H5, C(O)OC3H7, C(O)OCH(CH3)2, C(O)OC(CH3)3, C(O)OCH3, C(O)CH3, or C(O)C2H5.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: September 21, 2021
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akiko Suzuki, Asato Kondo, Takashi Kuboki, Shinji Murai, Mitsuru Udatsu, Toshihiro Imada, Yoshihiko Nakano, Reiko Yoshimura
  • Publication number: 20210273304
    Abstract: A contact structure causing a first electric device to be electrically connected to a second electric device includes first terminals and second terminals. The second terminals include contact projections to be electrically connected to the first terminals, and cleaning projections located closer to an opening side of a fitting part of the second electric device than the contact projections to be brought into contact with the first terminals. The contact structure is configured such that the contact projections are not in contact with a surface of an outer case of the first electric device or surfaces of the first terminals before the cleaning projections climb over the first terminals. The contact structure is also configured such that the contact projections are brought into contact with the surfaces of the first terminals after the cleaning projections climb over the first terminals.
    Type: Application
    Filed: January 18, 2021
    Publication date: September 2, 2021
    Inventors: Koji CHIBA, Takashi KUBOKI, Takeshi KIMURA, Kenji TANISHO
  • Patent number: 10835858
    Abstract: The embodiments provide an acidic gas absorbent, an acidic gas removal method, and an acidic gas removal apparatus. The absorbent absorbs an acidic gas in a large amount and hardly diffuses in air. The acidic gas absorbent according to the embodiment comprises an amine compound having a sulfonyl group and two or more amino groups.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: November 17, 2020
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Yoshihiko Nakano, Akiko Suzuki, Takashi Kuboki, Toshihiro Imada, Shinji Murai, Reiko Yoshimura, Kenji Sano, Mitsuru Udatsu
  • Publication number: 20200300556
    Abstract: A heat regenerating material particle of an embodiment contains a heat regenerating substance having a maximum value of specific heat at a temperature of 20 K or less is 0.3 J/cm3·K or more, and one metal element selected from the group consisting of calcium (Ca), magnesium (Mg), beryllium (Be), strontium (Sr), aluminum (Al), iron (Fe), copper (Cu), nickel (Ni), and cobalt (Co). The heat regenerating material particle includes a first region and a second region, the second region is closer to an outer edge of the heat regenerating material particle than the first region, and the second region has a higher concentration of the metal element than the first region.
    Type: Application
    Filed: August 30, 2019
    Publication date: September 24, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Tomohiro YAMASHITA, Takahiro Kawamoto, Tomoko Eguchi, Takashi Kuboki
  • Publication number: 20200294698
    Abstract: A superconducting coil of an embodiment includes a winding frame; a superconducting wire wound around the winding frame, the superconducting wire including a first region and a second region facing the first region; and a first layer placed between the first region and the second region, the first layer including a first particle and a thermosetting resin, the first particle including crystal having volume resistivity equal to or higher than 10?2 ?·m and having cleavage, and the thermosetting resin surrounding the first particle.
    Type: Application
    Filed: August 30, 2019
    Publication date: September 17, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Mariko HAYASHI, Takashi KUBOKI
  • Publication number: 20200258823
    Abstract: An object of the invention is to improve productivity while suppressing a reduction in a heat radiating performance of a power semiconductor device. According to the invention, there is provided a manufacturing method of a power semiconductor device which includes a conductive member having a first surface and a second surface provided on a side opposite to the first surface and a power semiconductor element which is connected to the conductive member through a bonding material.
    Type: Application
    Filed: July 9, 2018
    Publication date: August 13, 2020
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takashi KUBOKI, Keiji KAWAHARA, Takeshi KONNO
  • Patent number: 10722838
    Abstract: A carbon dioxide absorbent of an embodiment includes a solid resin compound containing a structural unit expressed by the following formula (1). X in the formula (1) is a halogen element.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: July 28, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Asato Kondo, Takashi Kuboki, Akiko Suzuki, Mitsuru Udatsu, Hiroko Watando
  • Patent number: 10693128
    Abstract: An electrode for a nonaqueous electrolyte battery of the embodiment includes a current collector; and an active material layer which includes an active material and is formed on the current collector. The active material layer includes at least one of a silicon particle and a silicon oxide particle. The active material layer has a plurality of cracks extending in a thickness direction of the active material layer.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: June 23, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takayuki Fukasawa, Kenji Essaki, Tomokazu Morita, Takashi Kuboki
  • Patent number: 10625200
    Abstract: A carbon dioxide absorbent of an embodiment includes a chain amine, a cyclic amine, and an acid. The chain amine is a compound expressed by Formula (1) of FIG. 1. R1 in Formula (1) is hydrogen or an alkyl chain having at least one hydroxyl group and 1 to 7 carbon atoms. R2 in Formula (1) is an alkyl chain having at least one hydroxyl group and 1 to 7 carbon atoms. R3 in Formula (1) is hydrogen, a straight alkyl chain having 1 to 7 carbon atoms, a branched alkyl chain having 1 to 7 carbon atoms, or a cyclic alkyl chain having 5 to 7 carbon atoms.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: April 21, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akiko Suzuki, Asato Kondo, Takashi Kuboki, Shinji Murai, Mitsuru Udatsu
  • Patent number: 10615410
    Abstract: An active material of an embodiment for a nonaqueous electrolyte battery includes a complex. The complex includes a covering material including an M-O—C mixed body; and particles including at least one element of M. The particles are included in the covering material. The M includes at least one element selected from the group consisting of; Si, Sn, Al, and Ti. The particles including the at least one element of M include the at least one element of M or an alloy including the at least one element of M. The M-O—C mixed body includes at least three elements of M, O, and C. The M-O—C mixed body includes a point at which the following conditional expressions: 0.6?M/O?5 (molar ratio) and 0.002?M/C?0.1 (molar ratio) are simultaneously satisfied. The M-O—C mixed body includes the at least three elements of M, O, and C in a region excluding the particles including the at least one element of M when elementary composition analysis of the complex is performed by TEM-EDX with a beam diameter of 1 nm.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: April 7, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenji Essaki, Tomokazu Morita, Takayuki Fukasawa, Takashi Kuboki
  • Publication number: 20200087558
    Abstract: A heat regenerating material particle according to an embodiment includes a plurality of heat regenerating substance particles having a maximum volume specific heat value of 0.3 J/cm3·K or more at a temperature of 20 K or lower, and a binder bonding the heat regenerating substance particles, the binder containing water insoluble resin. The heat regenerating material particle has a particle diameter of 500 ?m or less.
    Type: Application
    Filed: March 5, 2019
    Publication date: March 19, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Tomohiro Yamashita, Takahiro Kawamoto, Tomoko Eguchi, Masaya Hagiwara, Akiko Saito, Takashi Kuboki
  • Publication number: 20200086265
    Abstract: The embodiments provide an acidic gas absorbent, an acidic gas removal method, and an acidic gas removal apparatus. The absorbent absorbs an acidic gas in a large amount and hardly diffuses in air. The acidic gas absorbent according to the embodiment comprises an amine compound having a sulfonyl group and two or more amino groups.
    Type: Application
    Filed: March 8, 2019
    Publication date: March 19, 2020
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions Corporation
    Inventors: Yoshihiko Nakano, Akiko Suzuki, Takashi Kuboki, Toshihiro Imada, Shinji Murai, Reiko Yoshimura, Kenji Sano, Mitsuru Udatsu
  • Publication number: 20200086266
    Abstract: The embodiments provide an acidic gas absorbent having low diffusibility, an acidic gas removal method, and an acidic gas removal apparatus. The acidic gas absorbent according to the embodiment comprises: an amine compound having a vapor pressure of 0.001 to 10 Pa at 20° C.; a water-soluble polymer compound having a mass-average molecular weight of 900 to 200000 and not containing a functional group having a pKa value greater than 7 except for hydroxy; and water.
    Type: Application
    Filed: March 8, 2019
    Publication date: March 19, 2020
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Akiko Suzuki, Yoshihiko Nakano, Reiko Yoshimura, Toshihiro Imada, Takashi Kuboki, Kenji Sano, Mitsuru Udatsu
  • Publication number: 20200052283
    Abstract: According to one embodiment, there is provided a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode including a negative electrode active material layer, and a non-aqueous electrolyte. The negative electrode active material layer contains carbon dioxide and releases the carbon dioxide in the range of 0.1 ml to 5 ml per 1 g when heated at 200° C. for 1 minute.
    Type: Application
    Filed: October 17, 2019
    Publication date: February 13, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shinsuke MATSUNO, Hidesato SARUWATARI, Dai YAMAMOTO, Asato KONDO, Hiromichi KURIYAMA, Hideki SATAKE, Takashi KUBOKI
  • Publication number: 20200047110
    Abstract: The embodiments provide an acidic gas absorbent, an acidic gas removal method using the absorbent, and an acidic gas removal apparatus using the absorbent. The absorbent absorbs an acidic gas in a large amount and is hardly diffused. The acidic gas absorbent according to the embodiment comprises an amine compound represented by the following formula (1): [In the formula, each R1 is independently hydrogen, an alkyl group, or a primary or secondary amino-containing aminoalkyl group provided that at least one of R1s is the aminoalkyl group, each R2 is independently hydrogen, an alkyl group, hydroxy, amino, hydroxyamino, or a primary or secondary amino-containing aminoalkyl group, the alkyl or aminoalkyl group contained in R1 or R2 has a straight-chain or branched-chain skeleton and may be substituted with hydroxy or carbonyl, and p is 2 to 4.
    Type: Application
    Filed: March 8, 2019
    Publication date: February 13, 2020
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Akiko SUZUKI, Yoshihiko NAKANO, Reiko YOSHIMURA, Toshihiro IMADA, Takashi KUBOKI, Kenji SANO, Shinji MURAI, Mitsuru UDATSU
  • Patent number: 10544252
    Abstract: There is provided a method that can realize the treatment of an amine compound, a deterioration product thereof and the like in a simple and a low-cost manner. The method includes treating a carbon dioxide absorbing agent, comprising a step in which at least one carbon dioxide absorbing agent represented by OH—R2—NR3—R4—OH or H—NR6—R7—NR8—H into contact with a compound containing two or more isocyanate groups in its molecule to produce a solid containing a urethane bond or a urea bond. In the above formula, R2, R3, R4, R6, R7, and R8 each independently represent CvHwOxNy wherein v, w, x, and y are 0?v?10, 0?w?22, 0?x?3, and 0?y?3, respectively.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: January 28, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroko Watando, Takashi Kuboki, Satoshi Saito