Patents by Inventor Hideki Satake

Hideki Satake 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: 10910643
    Abstract: According to an embodiment, a nonaqueous electrolyte battery is provided. The nonaqueous electrolyte includes a negative electrode, a positive electrode and a nonaqueous electrolyte. The negative electrode includes negative electrode active material particles. The negative electrode active material particles include a spinel-type lithium titanate. The negative electrode has such a surface state that a ratio ALi/ATi of an Li atom abundance ratio ALi to a Ti atom abundance ratio ATi, according to a photoelectron spectroscopic measurement for a surface, is increased at a rate of 0.002 to 0.02 per cycle in a charge-and-discharge cycle test under the predetermined condition.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: February 2, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiromichi Kuriyama, Hidesato Saruwatari, Hideki Satake, Dai Yamamoto
  • Patent number: 10622635
    Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode includes a negative electrode material layer. The negative electrode material layer includes a negative electrode active material capable of absorbing and releasing lithium at a potential of 0.78 V (vs. Li/Li+) or more. A film containing a compound having a propylene glycol backbone is formed on at least a part of a surface of the negative electrode material layer. A content of the compound having the propylene glycol backbone in the film is 2 ?mol to 40 ?mol per g of a weight of the negative electrode material layer.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: April 14, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Dai Yamamoto, Yuki Watanabe, Hidesato Saruwatari, Kazuya Kuriyama, Hideki Satake
  • 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
  • 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
  • Publication number: 20190288282
    Abstract: According to an embodiment, a nonaqueous electrolyte battery is provided. The nonaqueous electrolyte includes a negative electrode, a positive electrode and a nonaqueous electrolyte. The negative electrode includes negative electrode active material particles. The negative electrode active material particles include a spinel-type lithium titanate. The negative electrode has such a surface state that a ratio ALi/ATi of an Li atom abundance ratio ALi to a Ti atom abundance ratio ATi, according to a photoelectron spectroscopic measurement for a surface, is increased at a rate of 0.002 to 0.02 per cycle in a charge-and-discharge cycle test under the predetermined condition.
    Type: Application
    Filed: June 3, 2019
    Publication date: September 19, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiromichi KURIYAMA, Hidesato Saruwatari, Hideki Satake, Dai Yamamoto
  • Publication number: 20190216352
    Abstract: Provided is an electrode sheet allowing easy connection of a wiring that is extended, when required, to a measurement position on a living body. The electrode sheet (main sheet (1), auxiliary sheet (10)) includes a sheet-shaped flexible substrate (2, 11), wirings (3, 12) formed on the flexible substrate (2, 11), electrodes (5, 14) formed on the flexible substrate (2, 11) and electrically connected to the wirings (3, 12), and an insulating layer (4, 13) laid on the flexible substrate (2, 11) in such a manner that the wirings (3, 12) are overlaid with the insulating layer (4, 13) while the electrodes (5, 14) are exposed. The electrodes (5, 14) are formed of a conductive material in which conductive particles are dispersed in a thermoplastic resin.
    Type: Application
    Filed: August 17, 2017
    Publication date: July 18, 2019
    Inventors: Tsuyoshi SEKITANI, Takafumi UEMURA, Teppei ARAKI, Shusuke YOSHIMOTO, Masayuki IWASE, Akio YOSHIDA, Hideki SATAKE
  • Patent number: 10355273
    Abstract: According to an embodiment, a nonaqueous electrolyte battery is provided. The nonaqueous electrolyte includes a negative electrode, a positive electrode and a nonaqueous electrolyte. The negative electrode includes negative electrode active material particles. The negative electrode active material particles include a spinel-type lithium titanate. The negative electrode has such a surface state that a ratio ALi/ATi of an Li atom abundance ratio ALi to a Ti atom abundance ratio ATi, according to a photoelectron spectroscopic measurement for a surface, is increased at a rate of 0.002 to 0.02 per cycle in a charge-and-discharge cycle test under the predetermined condition.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: July 16, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiromichi Kuriyama, Hidesato Saruwatari, Hideki Satake, Dai Yamamoto
  • Patent number: 10003073
    Abstract: According to one embodiment, an electrode is provided. The electrode includes an electrode mixture layer and a current collector. The electrode mixture layer contains active material particles. The electrode mixture layer includes a first surface being in contact with the current collector and a second surface separated from the first surface by a thickness of the electrode mixture layer. The electrode mixture layer includes a first portion having the first surface and a second portion having the second surface. In the first portion, a first oxide layer is formed on the active material particle. In the second portion, a second oxide layer is formed on the active material particles. The thickness of the first oxide layer is more than the thickness of the second oxide layer.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: June 19, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiromichi Kuriyama, Hidesato Saruwatari, Hideki Satake
  • Publication number: 20180159119
    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: February 1, 2018
    Publication date: June 7, 2018
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shinsuke Matsuno, Hidesato Saruwatari, Dai Yamamoto, Asato Kondo, Hiromichi Kuriyama, Hideki Satake, Takashi Kuboki
  • Patent number: 9923192
    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: August 16, 2013
    Date of Patent: March 20, 2018
    Assignee: KABUSHIKI KAIHSA TOSHIBA
    Inventors: Shinsuke Matsuno, Hidesato Saruwatari, Dai Yamamoto, Asato Kondo, Hiromichi Kuriyama, Hideki Satake, Takashi Kuboki
  • Publication number: 20170365860
    Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode includes a negative electrode material layer. The negative electrode material layer includes a negative electrode active material capable of absorbing and releasing lithium at a potential of 0.78 V (vs. Li/Li+) or more. A film containing a compound having a propylene glycol backbone is formed on at least a part of a surface of the negative electrode material layer. A content of the compound having the propylene glycol backbone in the film is 2 ?mol to 40 ?mol per g of a weight of the negative electrode material layer.
    Type: Application
    Filed: August 30, 2017
    Publication date: December 21, 2017
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Dai YAMAMOTO, Yuki WATANABE, Hidesato SARUWATARI, Kazuya KURIYAMA, Hideki SATAKE
  • Patent number: 9780378
    Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode includes a negative electrode material layer. The negative electrode material layer includes a negative electrode active material capable of absorbing and releasing lithium at a potential of 0.78 V (vs. Li/Li+) or more. A film containing a compound having a propylene glycol backbone is formed on at least a part of a surface of the negative electrode material layer. A content of the compound having the propylene glycol backbone in the film is 2 ?mol to 40 ?mol per g of a weight of the negative electrode material layer.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: October 3, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Dai Yamamoto, Yuki Watanabe, Hidesato Saruwatari, Kazuya Kuriyama, Hideki Satake
  • Patent number: 9698411
    Abstract: According to one embodiment, there is provided an electrode for battery which includes a current collector and an active material layer provided on the current collector. The active material layer contains particles of a lithium titanate compound having a spinel structure and a basic polymer. Here, the basic polymer is coating at least a part of the surface of the particles of the lithium titanate compound.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: July 4, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Dai Yamamoto, Takuya Iwasaki, Yasuhiro Harada, Hiroki Inagaki, Hideki Satake
  • Publication number: 20170179483
    Abstract: According to an embodiment, a nonaqueous electrolyte battery is provided. The nonaqueous electrolyte includes a negative electrode, a positive electrode and a nonaqueous electrolyte. The negative electrode includes negative electrode active material particles. The negative electrode active material particles include a spinel-type lithium titanate. The negative electrode has such a surface state that a ratio ALi/ATi of an Li atom abundance ratio ALi to a Ti atom abundance ratio ATi, according to a photoelectron spectroscopic measurement for a surface, is increased at a rate of 0.002 to 0.02 per cycle in a charge-and-discharge cycle test under the predetermined condition.
    Type: Application
    Filed: March 3, 2017
    Publication date: June 22, 2017
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiromichi KURIYAMA, Hidesato SARUWATARI, Hideki SATAKE, Dai YAMAMOTO
  • Patent number: 9627715
    Abstract: A non-aqueous electrolyte secondary battery of an embodiment includes an exterior member, a negative electrode containing a titanium-containing oxide housed in the exterior member, a positive electrode housed in the exterior member, a separator housed in the exterior member and arranged between the positive electrode and the negative electrode, and a non-aqueous electrolyte solution housed in the exterior member. At least one type or more chain carbonates are contained in a solvent of the non-aqueous electrolyte solution. A self-diffusion coefficient of the chain carbonate in ?20° C. is front 1.4×10?10 to 2.0×10?10 m2/sec.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: April 18, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Dai Yamamoto, Hidesato Saruwatari, Masanori Tanaka, Kazuya Kuriyama, Hideki Satake, Hirotaka Hayashida
  • Patent number: 9509013
    Abstract: According to one embodiment, there is provided a non-aqueous electrolyte secondary battery including a positive electrode including a positive electrode active material layer, a negative electrode including a negative electrode active material layer, and a non-aqueous electrolyte. At least one of the positive electrode active material layer and the negative electrode active material layer contains carbon dioxide and releases the carbon dioxide in the range of 0.1 ml to 10 ml per 1 g when heated at 350° C. for 1 minute.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: November 29, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shinsuke Matsuno, Hiromichi Kuriyama, Hideki Satake, Takashi Kuboki
  • Publication number: 20160308202
    Abstract: According to one embodiment, an electrode is provided. The electrode includes an electrode mixture layer and a current collector. The electrode mixture layer contains active material particles. The electrode mixture layer includes a first surface being in contact with the current collector and a second surface separated from the first surface by a thickness of the electrode mixture layer. The electrode mixture layer includes a first portion having the first surface and a second portion having the second surface. In the first portion, a first oxide layer is formed on the active material particle. In the second portion, a second oxide layer is formed on the active material particles. The thickness of the first oxide layer is more than the thickness of the second oxide layer.
    Type: Application
    Filed: June 29, 2016
    Publication date: October 20, 2016
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiromichi KURIYAMA, Hidesato SARUWATARI, Hideki SATAKE
  • Patent number: 9466854
    Abstract: According to one embodiment, there is provided a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode containing a titanium-containing oxide, and a nonaqueous electrolyte. The nonaqueous electrolyte contains carbon monoxide and at least one selected from difluorophosphoric acid and monofluorophosphoric acid. The ratio of the mass concentration of carbon monoxide to the sum of the mass concentrations of difluorophosphoric acid and monofluorophosphoric acid is in the range of 0.1 to 5%.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: October 11, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Dai Yamamoto, Shinsuke Matsuno, Hidesato Saruwatari, Hiroko Watando, Sayaka Morimoto, Kazuya Kuriyama, Hideki Satake
  • Patent number: 9464208
    Abstract: This invention provides a viscosity modifier for high concentration dispersion of inorganic fine particles which can reduce, by giving excellent viscosity modifying function to a high concentration dispersion of inorganic fine particles (e.g., printing ink composition, functional paste composition or paint composition, of high concentration dispersion of inorganic fine particles), the occurrence of inconvenience in a printing step or coating step for the manufacture of components or substrates, and also provides a high concentration dispersion of inorganic fine particles which contains said viscosity modifier.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: October 11, 2016
    Assignee: KUSUMOTO CHEMICALS, LTD.
    Inventors: Daisuke Shimizu, Junpei Suetou, Chihiro Hamazaki, Kenichi Asano, Hideki Satake, Eiichi Sato
  • Publication number: 20160261004
    Abstract: A non-aqueous electrolyte secondary battery of an embodiment includes an exterior member, a negative electrode containing a titanium-containing oxide housed in the exterior member, a positive electrode housed in the exterior member, a separator housed in the exterior member and arranged between the positive electrode and the negative electrode, and a non-aqueous electrolyte solution housed in the exterior member. At least one type or more chain carbonates are contained in a solvent of the non-aqueous electrolyte solution. A self-diffusion coefficient of the chain carbonate in ?20° C. is front 1.4×10?10 to 2.0×10?10 m/sec.
    Type: Application
    Filed: September 11, 2014
    Publication date: September 8, 2016
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Dai YAMAMOTO, Hidesato Saruwatari, Masanori Tanaka, Kazuya Kuriyama, Hideki Satake, Hirotaka Hayashida