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).

  • 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
  • Publication number: 20200188065
    Abstract: The present invention provides a dental implant device comprising a dental implant body and an implant fixture. Said implant fixture is characterized in that it comprises a portion to be fixed to said implant body and a portion to be fixed to a tooth adjacent to the transplantation site of said implant body in a subject, and is configured so that mechanical stimulation from the tooth adjacent to said transplantation site is transmissible to said implant body, and said implant device is characterized in that it is placed into the oral cavity of said subject so that said implant body is inserted at said transplantation site while said implant fixture is fixed to said implant body and the tooth adjacent to said transplantation site.
    Type: Application
    Filed: August 14, 2017
    Publication date: June 18, 2020
    Inventors: Takashi Tsuji, Masamitsu Oshima, Takuo Kuboki, Yoshiki Ando, Miho Ogawa
  • 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: 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: 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: 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
  • Patent number: 10511026
    Abstract: A negative electrode active material of an embodiment for a nonaqueous electrolyte battery includes silicon or silicon oxide including silicon inside, a carbonaceous substance containing the silicon or the silicon oxide including silicon inside, and a phase including a silicate compound and a conductive assistant, the phase being interposed between the silicon or the silicon oxide including silicon inside and the carbonaceous substance. The silicate compound is a complexed oxide including an oxide including at least one element selected from the group consisting of; an alkaline earth element, a transition metal element, and a rare-earth element and a silicon oxide.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: December 17, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takayuki Fukasawa, Kenji Essaki, Tomokazu Morita, Takashi Kuboki
  • Patent number: 10490808
    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: February 1, 2018
    Date of Patent: November 26, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shinsuke Matsuno, Hidesato Saruwatari, Dai Yamamoto, Asato Kondo, Hiromichi Kuriyama, Hideki Satake, Takashi Kuboki
  • Patent number: 10468669
    Abstract: An active material for a nonaqueous electrolyte battery according to the embodiment is a composite including at least: a carbonaceous substance; and silicon-containing particles dispersed in the carbonaceous substance, the silicon-containing particles including at least one of silicon, a silicon alloy and a silicon oxide, wherein in an argon ion laser Raman spectrum, the half-width (?G) of a peak having a maximum intensity I1 in the range of 1575 cm?1 or more and 1625 cm?1 or less is 100 cm?1 or more and 150 cm?1 or less, and the intensity ratio of a peak having a maximum intensity I2 in the range of 500 cm?1 or more and 550 cm?1 or less to the peak having the maximum intensity I1 in the range of 1575 cm?1 or more and 1625 cm?1 or less (I2/I1) is 0.25 or more and 0.50 or less.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: November 5, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenji Essaki, Takayuki Fukasawa, Miho Muramatsu, Tomokazu Morita, Takashi Kuboki, Yumiko Kita
  • Patent number: 10381649
    Abstract: An electrode material for a nonaqueous electrolyte battery that includes a composite particle that contains a silicon dioxide particle having an average primary particle size of D1, a silicon particle having an average primary particle size of D2, and a carbon material, where D1 is 5 nm or more and 80 nm or less and the ratio D2/D1 is 0.3 or more and 8 or less.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: August 13, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takayuki Fukasawa, Kenji Essaki, Takashi Kuboki, Shinsuke Matsuno, Tomokazu Morita
  • Patent number: 10326129
    Abstract: The active material for a nonaqueous electrolyte secondary battery of the present embodiment includes a core particle and a carbon layer. The core particle is formed of silicon particles having a twinned crystal in part of a surface. The carbon layer coats the core particle.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: June 18, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takayuki Fukasawa, Kenji Essaki, Tomokazu Morita, Takashi Kuboki, Yasuhiro Goto
  • Patent number: 10319992
    Abstract: In one embodiment, an electrode for a nonaqueous electrolyte secondary battery has an electrode mixture layer comprising an active material, a conductive agent, and a binding agent to bind the active material and the conductive agent, and a collector on which the electrode mixture layer is laminated. The active material comprises a composite body comprising at least a carbonaceous material, and a metal dispersed in the carbonaceous material or an oxide of the metal. And the binding agent is a polyvinyl alcohol resin of a saponification degree of 87-99.9 mole %.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: June 11, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuyuki Hotta, Tomokazu Morita, Takashi Kuboki