Patents by Inventor Masanori Harata

Masanori Harata 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: 10553864
    Abstract: An active material expressed by a general formula; LiaNibCocMndDeOf (where 0.2?“a”?1, “b”+“c”+“d”+“e”=1, 0?“e”<1, “D” is at least one element selected from the group consisting of Li, Fe, Cr, Cu, Zn, Ca, Mg, Zr, S, Si, Na, K and Al, and 1.7?“f”?2.1) includes a high manganese portion, which is made of a metallic oxide including Ni, Co and Mn at least and of which the composition ratio between Ni, Co and Mn is expressed by Ni:Co:Mn=b2:c2:d2 (note that “b2”+“c2”+“d2”=1, 0<“b2”<1, 0<“c2”<“c”, and “d”<“d2”<1), in a superficial layer thereof.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: February 4, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tsukasa Sugie, Dai Matsushiro, Masanori Harata, Takefumi Fukumoto
  • Patent number: 10312513
    Abstract: A lithium composite metallic oxide expressed by: LiaNibCocMndDeOf (where 0.2?“a”?1.5, “b”+“c”+“d”+“e”=1, 0<“e”<1, “D” is at least one of the following elements: Fe, Cr, Cu, Zn, Ca, Mg, Zr, S, Si, Na, K, Al, Ti, P, Ga, Ge, V, Mo, Nb, W, La, Hf and Rf, and 1.7?“f”?2.1), and including: a high manganese portion, which is made of a metallic oxide including Ni, Co and Mn at least and of which the composition ratio between Ni, Co and Mn is expressed by Ni:Co:Mn=g:h:i (note that “g”+“h”+“i”=1, 0<“g”<1, 0<“h”<“c”, and “d”<“i”<1), in a superficial layer thereof; and a metallic oxidation portion in an outermost superficial layer of the high manganese portion.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: June 4, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tsukasa Sugie, Dai Matsushiro, Masanori Harata
  • Patent number: 10308515
    Abstract: Provided is a method for producing a CaSi2-containing composition, the method including: a molten metal step of adding Ca and/or M (M is at least one element selected from elements of groups 3 to 9) to a CaSi2-containing composition containing crystalline silicon to prepare a molten metal containing Ca, M and Si that satisfy the following condition: when a molar ratio of Ca, M and Si is x:y:z (x+y+z=100), x, y and z satisfy 23<x?100/3, 0<y<10 and 64<z?200/3, respectively; and a cooling step of cooling the molten metal to obtain a CaSi2-containing composition containing a reduced amount of crystalline silicon.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: June 4, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Masanori Harata, Nobuhiro Goda, Takashi Mohri, Hiroki Oshima
  • Patent number: 10217990
    Abstract: A silicon material useful as a negative electrode active material is provided. The silicon material has an Si/O atom ratio within a range of greater than 1/0.5 and not greater than 1/0.1 and a band gap within a range of greater than 1.1 eV and not greater than 2.1 eV. A secondary battery in which this silicon material is used as a negative electrode active material has long life.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: February 26, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takashi Mohri, Masanori Harata, Masataka Nakanishi, Hiroki Oshima, Nobuhiro Goda
  • Patent number: 10164255
    Abstract: A silicon material useful as a negative electrode active material is provided. The silicon material has a band gap within a range of greater than 1.1 eV and not greater than 1.7 eV. A secondary battery in which this silicon material is used as a negative electrode active material has improved initial efficiency.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: December 25, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takashi Mohri, Masataka Nakanishi, Hiroki Oshima, Masanori Harata, Nobuhiro Goda
  • Patent number: 10135067
    Abstract: A novel silicon material is provided. An MSix-containing silicon material contains MSix (M is at least one element selected from the group 3 to 9 elements. 1/3?x?3) in a silicon matrix.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: November 20, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Masanori Harata
  • Patent number: 10109853
    Abstract: An active material expressed by a general formula; LiaNibCocMndDeOf (where 0.2?“a”?1, “b”+“c”+“d”+“e”=1, 0?“e”<1, “D” is at least one element selected from the group consisting of Li, Fe, Cr, Cu, Zn, Ca, Mg, Zr, S, Si, Na, K and Al, and 1.7?“f”?2.1) includes a high manganese portion, which is made of a metallic oxide including Ni, Co and Mn at least and of which the composition ratio between Ni, Co and Mn is expressed by Ni:Co:Mn=b2:c2:d2 (note that “b2”+“c2”+“d2”=1, 0<“b2”<1, 0<“c2”<“c”, and “d”<“d2”<1), in a superficial layer thereof.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: October 23, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tsukasa Sugie, Dai Matsushiro, Masanori Harata, Takefumi Fukumoto
  • Publication number: 20180265366
    Abstract: A method for producing a silicon material, the method including: a step of heating CaSi2 powder in a range of 400 to 1000° C.; a step of reacting acid with the CaSi2 powder having been subjected to the step of heating CaSi2 powder in a range of 400 to 1000° C., to obtain a layered silicon compound; and a step of heating the layered silicon compound at not less than 300° C.
    Type: Application
    Filed: October 27, 2016
    Publication date: September 20, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Masanori HARATA, Takashi MOHRI, Nobuhiro GODA, Yasuhiro YAMAGUCHI
  • Publication number: 20180179072
    Abstract: Provided is a method for producing a silicon material, the method including: a molten metal preparing step of preparing Ca-x at % Si alloy (42?x?75) molten metal; a solidifying step of cooling the molten metal by a rapid cooling device to solidify the Ca-x at % Si alloy; a synthesizing step of reacting the solidified Ca-x at % Si alloy with acid to obtain a layered silicon compound; and a heating step of heating the layered silicon compound at not less than 300° C.
    Type: Application
    Filed: May 20, 2016
    Publication date: June 28, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Masanori HARATA, Takashi MOHRI, Nobuhiro GODA
  • Publication number: 20180175384
    Abstract: An active material expressed by a general formula; LiaNibCocMndDeOf (where 0.2?“a”?1, “b”+“c”+“d”+“e”=1, 0?“e”<1, “D” is at least one element selected from the group consisting of Li, Fe, Cr, Cu, Zn, Ca, Mg, Zr, S, Si, Na, K and Al, and 1.7?“f”?2.1) includes a high manganese portion, which is made of a metallic oxide including Ni, Co and Mn at least and of which the composition ratio between Ni, Co and Mn is expressed by Ni:Co:Mn=b2:c2:d2 (note that “b2”+“c2”+“d2”=1, 0<“b2”<1, 0<“c2”<“c”, and “d”<“d2”<1), in a superficial layer thereof.
    Type: Application
    Filed: January 16, 2018
    Publication date: June 21, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tsukasa SUGIE, Dai MATSUSHIRO, Masanori HARATA, Takefumi FUKUMOTO
  • Publication number: 20180170761
    Abstract: Provided is a method for producing a CaSi2-containing composition, the method including: a molten metal step of adding Ca and/or M (M is at least one element selected from elements of groups 3 to 9) to a CaSi2-containing composition containing crystalline silicon to prepare a molten metal containing Ca, M and Si that satisfy the following condition: when a molar ratio of Ca, M and Si is x:y:z (x+y+z=100), x, y and z satisfy 23<x?100/3, 0<y<10 and 64<z?200/3, respectively; and a cooling step of cooling the molten metal to obtain a CaSi2-containing composition containing a reduced amount of crystalline silicon.
    Type: Application
    Filed: May 20, 2016
    Publication date: June 21, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Masanori HARATA, Nobuhiro GODA, Takashi MOHRI, Hiroki OSHIMA
  • Publication number: 20170309901
    Abstract: A novel silicon material is provided. An MSix-containing silicon material contains MSix (M is at least one element selected from the group 3 to 9 elements. 1/3?x?3) in a silicon matrix.
    Type: Application
    Filed: September 4, 2015
    Publication date: October 26, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Masanori HARATA
  • Publication number: 20170200949
    Abstract: A negative electrode active material having improved electron conductivity is provided. A reaction between an acid and a copper-containing calcium silicide represented by CaCuxSiy is caused, and a heat treatment is performed in a non-oxidizing atmosphere on the reaction product, to obtain a copper-containing silicon material. The copper-containing silicon material contains Si and copper in an amorphous phase, and fine copper silicide is uniformly deposited within the amorphous phase. Thus, electron conductivity improves. Therefore, a secondary battery in which the negative electrode active material is used as a negative electrode has improved rate characteristics and also has an increased charge/discharge capacity.
    Type: Application
    Filed: May 26, 2015
    Publication date: July 13, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Masanori HARATA, Takashi MOHRI
  • Publication number: 20170200947
    Abstract: A silicon material useful as a negative electrode active material is provided. The silicon material has a band gap within a range of greater than 1.1 eV and not greater than 1.7 eV. A secondary battery in which this silicon material is used as a negative electrode active material has improved initial efficiency.
    Type: Application
    Filed: May 26, 2015
    Publication date: July 13, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takashi MOHRI, Masataka NAKANISHI, Hiroki OSHIMA, Masanori HARATA, Nobuhiro GODA
  • Publication number: 20170194623
    Abstract: A silicon material useful as a negative electrode active material is provided. The silicon material has an Si/O atom ratio within a range of greater than 1/0.5 and not greater than 1/0.1 and a band gap within a range of greater than 1.1 eV and not greater than 2.1 eV. A secondary battery in which this silicon material is used as a negative electrode active material has long life.
    Type: Application
    Filed: May 26, 2015
    Publication date: July 6, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takashi MOHRI, Masanori HARATA, Masataka NAKANISHI, Hiroki OSHIMA, Nobuhiro GODA
  • Publication number: 20170149060
    Abstract: A lithium composite metallic oxide expressed by: LiaNibCocMndDeOf (where 0.2?“a”?1.5, “b”+“c”+“d”+“e”=1, 0<“e”<1, “D” is at least one of the following elements: Fe, Cr, Cu, Zn, Ca, Mg, Zr, S, Si, Na, K, Al, Ti, P, Ga, Ge, V, Mo, Nb, W, La, Hf and Rf, and 1.7?“f”?2.1), and including: a high manganese portion, which is made of a metallic oxide including Ni, Co and Mn at least and of which the composition ratio between Ni, Co and Mn is expressed by Ni:Co:Mn=g:h:i (note that “g”+“h”+“i”=1, 0<“g”<1, 0<“h”<“c”, and “d”<“i”<1), in a superficial layer thereof; and a metallic oxidation portion in an outermost superficial layer of the high manganese portion.
    Type: Application
    Filed: April 7, 2015
    Publication date: May 25, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tsukasa SUGIE, Dai MATSUSHIRO, Masanori HARATA
  • Publication number: 20150357641
    Abstract: An active material expressed by a general formula; LiaNibCocMndDeOf (where 0.2?“a”?1, “b”+“c”+“d”+“e”=1, 0?“e”<1, “D” is at least one element selected from the group consisting of Li, Fe, Cr, Cu, Zn, Ca, Mg, Zr, S, Si, Na, K and Al, and 1.7?“f”?2.1) includes a high manganese portion, which is made of a metallic oxide including Ni, Co and Mn at least and of which the composition ratio between Ni, Co and Mn is expressed by Ni:Co:Mn=b2:c2:d2 (note that “b2”+“c2”+“d2”=1, 0<“b2”<1, 0<“c2”<“c”, and “d”<“d2”<1), in a superficial layer thereof.
    Type: Application
    Filed: January 24, 2014
    Publication date: December 10, 2015
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tsukasa SUGIE, Dai MATSUSHIRO, Masanori HARATA, Takefumi FUKUMOTO
  • Publication number: 20150295239
    Abstract: Providing a positive-electrode active material for lithium-ion secondary battery, the positive-electrode active material contributing to upgrading the rate characteristic and cyclability, and providing a lithium-ion secondary battery including the same. The positive-electrode active material includes a positive-electrode active-material body, and an adhesion portion adhering on at least some of a surface of the positive-electrode active-material body. The adhesion portion is composed of a compound expressed by a chemical formula: (ZrO)2P2O7.
    Type: Application
    Filed: October 31, 2013
    Publication date: October 15, 2015
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Masanori HARATA, Dai MATSUSHIRO
  • Patent number: 8641835
    Abstract: An iron alloy according to the present invention comprises: Al in an amount of from 3 to 5.5%; Mn in an amount from 0.2 to 6%; and the balance being iron (Fe), and inevitable impurities and/or a modifying element; when the entirety is taken as 100%. Since a high damping factor is obtainable at a low-strain amplitude, this iron alloy demonstrates a stable damping property even in a high-temperature region. Moreover, since the alloying elements are Al and Mn alone, and since their contents are less, the iron alloy according to the present invention is low in cost.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: February 4, 2014
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Keita Yamana, Motoharu Tanizawa, Masanori Harata, Kyoichi Kinoshita
  • Publication number: 20110192507
    Abstract: An iron alloy according to the present invention comprises: Al in an amount of from 3 to 5.5%; Mn in an amount from 0.2 to 6%; and the balance being iron (Fe), and inevitable impurities and/or a modifying element; when the entirety is taken as 100%. Since a high damping factor is obtainable at a low-strain amplitude, this iron alloy demonstrates a stable damping property even in a high-temperature region. Moreover, since the alloying elements are Al and Mn alone, and since their contents are less, the iron alloy according to the present invention is low in cost.
    Type: Application
    Filed: September 8, 2009
    Publication date: August 11, 2011
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Keita Yamana, Motoharu Tanizawa, Masanori Harata, Kyoichi Kinoshita