Patents by Inventor Tomokuni Abe

Tomokuni Abe 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: 10559813
    Abstract: The negative electrode includes a current collector, a negative electrode active material layer arranged on a surface of the current collector, and a protective layer arranged on a surface of the negative electrode active material layer. The negative electrode active material layer includes a first negative electrode active material having an aspect ratio defined as “a”/“b” to fall in a range of from two or more to eight or less when a length of the major axis is defined “a” and a length of the minor axis is defined “b.” The protective layer includes a ceramic powder.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: February 11, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Atsushi Saito, Tatsuya Eguchi, Manabu Miyoshi, Jun Kaneda, Tomokuni Abe, Hiroki Oshima
  • Patent number: 9966607
    Abstract: A polymer compound for use as a binder for a negative electrode of an electrical storage device is formed by condensing polyacrylic acid and a multifunctional amine represented by the following formula (1), in which Y represents a straight chain alkyl group having 1 to 4 carbon atoms, a phenylene group, or an oxygen atom, and R1 and R2 each independently represent one or more hydrogen atoms, methyl groups, ethyl groups, trifluoromethyl groups, or methoxy groups.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: May 8, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yusuke Sugiyama, Nobuhiro Goda, Masakazu Murase, Takeshi Kondo, Yuta Kawamoto, Tomokuni Abe, Yuta Nakagawa, Jun Kaneda
  • Publication number: 20180097223
    Abstract: The negative electrode includes a current collector, a negative electrode active material layer arranged on a surface of the current collector, and a protective layer arranged on a surface of the negative electrode active material layer. The negative electrode active material layer includes a first negative electrode active material having an aspect ratio defined as “a”/“b” to fall in a range of from two or more to eight or less when a length of the major axis is defined “a” and a length of the minor axis is defined “b.” The protective layer includes a ceramic powder.
    Type: Application
    Filed: April 5, 2016
    Publication date: April 5, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Atsushi SAITO, Tatsuya EGUCHI, Manabu MIYOSHI, Jun KANEDA, Tomokuni ABE, Hiroki OSHIMA
  • Publication number: 20170324094
    Abstract: A polymer compound for use as a binder for a negative electrode of an electrical storage device is formed by condensing polyacrylic acid and a multifunctional amine represented by the following formula (1), in which Y represents a straight chain alkyl group having 1 to 4 carbon atoms, a phenylene group, or an oxygen atom, and R1 and R2 each independently represent one or more hydrogen atoms, methyl groups, ethyl groups, trifluoromethyl groups, or methoxy groups.
    Type: Application
    Filed: October 20, 2015
    Publication date: November 9, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yusuke SUGIYAMA, Nobuhiro GODA, Masakazu MURASE, Takeshi KONDO, Yuta KAWAMOTO, Tomokuni ABE, Yuta NAKAGAWA, Jun KANEDA
  • Publication number: 20170256792
    Abstract: A production process for carbon-coated silicon material includes the steps of: a lamellar-silicon-compound production step of reacting CaSi2 with an acid to turn the CaSi2 into a lamellar silicon compound; a silicon-material production step of heating the lamellar silicon compound at 300° C. or more to turn the lamellar silicon compound into a silicon material; a coating step of coating the silicon material with carbon; and a washing step of washing the silicon material, or another silicon material undergone the coating step, with a solvent of which the relative permittivity is 5 or more.
    Type: Application
    Filed: July 17, 2015
    Publication date: September 7, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takeshi KONDO, Yusuke SUGIYAMA, Nobuhiro GODA, Mutsumi TAKAHASHI, Takashi MOHRI, Tomohiro NIIMI, Tomokuni ABE, Hirotaka SONE, Atsushi SAITO, Akihiro SAEKI
  • Patent number: 9590239
    Abstract: Provided is a negative electrode for a nonaqueous secondary battery which achieves both suppression of reductive decomposition of an electrolyte or an electrolytic solution and suppression of an increase in resistance. Also provided are a method for producing such a negative electrode and a nonaqueous secondary battery employing such a negative electrode. A polymer coating layer is formed so as to coat at least part of surfaces of negative electrode active material particles containing silicon oxide (SiOx; 0.5?x?1.6). The polymer coating layer contains a cationic polymer having a positive zeta potential under neutral conditions. Since silicon oxide has a negative zeta potential, a thin uniform coating layer can be formed owing to Coulomb's force.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: March 7, 2017
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tomokuni Abe, Hiroki Oshima, Yuya Sato, Kisena Yoshida, Nobuhiro Goda, Manabu Miyoshi
  • Publication number: 20140242458
    Abstract: Provided is a negative electrode for a nonaqueous secondary battery which achieves both suppression of reductive decomposition of an electrolyte or an electrolytic solution and suppression of an increase in resistance. Also provided are a method for producing such a negative electrode and a nonaqueous secondary battery employing such a negative electrode. A polymer coating layer is formed so as to coat at least part of surfaces of negative electrode active material particles containing silicon oxide (SiOx; 0.5?x?1.6). The polymer coating layer contains a cationic polymer having a positive zeta potential under neutral conditions. Since silicon oxide has a negative zeta potential, a thin uniform coating layer can be formed owing to Coulomb's force.
    Type: Application
    Filed: February 12, 2014
    Publication date: August 28, 2014
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tomokuni ABE, Hiroki Oshima, Yuya Sato, Kisena Yoshida, Nobuhiro Goda, Manabu Miyoshi
  • Publication number: 20110166301
    Abstract: The invention provides biodegradable polyesters, polyurethanes, comprising 3-carboxymuconolactone as a structural unit, 3-carboxymuconolactone esters and a process for their production. Polyesters comprising a repeating unit represented by the following formula (I): [wherein R represents a hydrocarbon-based divalent residue which, in the structure, optionally contains a heteroatom without an active hydrogen], polyurethanes comprising the polyester structure; 3-carboxymuconolactone esters; and a process for their production.
    Type: Application
    Filed: September 9, 2009
    Publication date: July 7, 2011
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, NAGAOKA UNIVERSITY OF TECHNOLOGY, FORESTRY AND FOREST PRODUCTS RESEARCH INSTITUTE
    Inventors: Hiroaki Takashima, Yusuke Yamamoto, Kohei Mase, Toshihisa Shimo, Tomokuni Abe, Kiyotaka Shigehara, Yoshihiro Katayama, Eiji Masai, Masaya Nakamura, Yuichiro Otsuka, Seiji Ohara
  • Publication number: 20100204356
    Abstract: A high-elasticity biodegradable polymer comprising PDC, which has excellent solubility in solvents and reactants, in their repeating unit structures is provided in an inexpensive manner. A polymer comprising a repeating unit represented by the following formula (I): wherein R1 and R2 each independently represent a divalent hydrocarbon residue with no active hydrogens in its structure and optionally containing a heteroatom; X represents O or NH; x represents an integer of at least 1; and m and n represent 0 or 1; and a process for their production.
    Type: Application
    Filed: September 4, 2008
    Publication date: August 12, 2010
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yusuke Yamamoto, Osamu Ohmori, Hitotoshi Murase, Hiroaki Takashima, Kohei Mase, Tomokuni Abe, Toshihisa Shimo