Patents by Inventor Atsushi Takeoka

Atsushi Takeoka 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).

  • Positive electrode composition for non-aqueous electrolyte secondary battery, method of manufacturing thereof, and non-aqueous electrolyte secondary battery
    Patent number: 9774037
    Abstract: A positive electrode composition for a non-aqueous electrolyte secondary battery includes a lithium transition metal composite oxide represented by a formula LiaNi1-x-yCoxMnyMzO2, wherein 1.00?a?1.50, 0<x?0.50, 0<y?0.50, 0.00?z?0.02, 0.40?x+y?0.70, M is at least one element selected from the group consisting of Zr, Ti, Mg, Ta, Nb and Mo, and a boron compound that at least contains boron and oxygen.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: September 26, 2017
    Assignee: NICHIA CORPORATION
    Inventors: Atsushi Takeoka, Yu Nishita
  • POSITIVE ELECTRODE COMPOSITION FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD OF MANUFACTURING THEREOF, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    Publication number: 20150108397
    Abstract: A positive electrode composition for a non-aqueous electrolyte secondary battery includes a lithium transition metal composite oxide represented by a formula LiaNi1-x-yCoxMnyMzO2, wherein 1.00?a?1.50, 0<x?0.50, 0<y?0.50, 0.00?z?0.02, 0.40?x+y?0.70, M is at least one element selected from the group consisting of Zr, Ti, Mg, Ta, Nb and Mo, and a boron compound that at least contains boron and oxygen.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 23, 2015
    Inventors: Atsushi TAKEOKA, Yu NISHITA
  • Positive electrode active material for lithium ion secondary battery
    Patent number: 7459238
    Abstract: Disclosed is a positive electrode active material for a lithium ion secondary battery, including lithium-transition metal composite oxide of a layer crystal structure, in which the lithium-transition metal composite oxide contains an element that improves conductivity of electrons in the lithium-transition metal composite oxide. Use of this positive electrode active material can improve cycle characteristics, high rate characteristics and thermal stability of lithium ion secondary batteries. Furthermore, by use of this positive electrode active material, gas generation in batteries can be decreased.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: December 2, 2008
    Assignee: Nichia Corporation
    Inventors: Takeshi Takahashi, Masuhiro Morizaki, Atsushi Takeoka, Junichi Tokuno
  • Positive electrode active material for lithium ion secondary battery
    Publication number: 20060093549
    Abstract: Disclosed is a positive electrode active material for a lithium ion secondary battery, including lithium-transition metal composite oxide of a layer crystal structure, in which the lithium-transition metal composite oxide contains an element that improves conductivity of electrons in the lithium-transition metal composite oxide. Use of this positive electrode active material can improve cycle characteristics, high rate characteristics and thermal stability of lithium ion secondary batteries. Furthermore, by use of this positive electrode active material, gas generation in batteries can be decreased.
    Type: Application
    Filed: December 5, 2005
    Publication date: May 4, 2006
    Applicant: Nichia Corporation
    Inventors: Takeshi Takahashi, Masuhiro Morizaki, Atsushi Takeoka, Junichi Tokuno
  • Positive electrode active material for lithium ion secondary battery
    Patent number: 7026068
    Abstract: Disclosed is a positive electrode active material for a lithium ion secondary battery, including lithium-transition metal composite oxide of a layer crystal structure, in which the lithium-transition metal composite oxide contains an element that improves conductivity of electrons in the lithium-transition metal composite oxide. Use of this positive electrode active material can improve cycle characteristics, high rate characteristics and thermal stability of lithium ion secondary batteries. Furthermore, by use of this positive electrode active material, gas generation in batteries can be decreased.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: April 11, 2006
    Assignee: Nichia Corporation
    Inventors: Takeshi Takahashi, Masuhiro Morizaki, Atsushi Takeoka, Junichi Tokuno
  • Positive electrode active material for lithium ion secondary battery
    Publication number: 20050271945
    Abstract: Disclosed is a positive electrode active material for a lithium ion secondary battery, including lithium-transition metal composite oxide of a layer crystal structure, in which the lithium-transition metal composite oxide contains an element that improves conductivity of electrons in the lithium-transition metal composite oxide. Use of this positive electrode active material can improve cycle characteristics, high rate characteristics and thermal stability of lithium ion secondary batteries. Furthermore, by use of this positive electrode active material, gas generation in batteries can be decreased.
    Type: Application
    Filed: July 18, 2005
    Publication date: December 8, 2005
    Applicant: Nichia Corporation
    Inventors: Takeshi Takahashi, Masuhiro Morizaki, Atsushi Takeoka, Junichi Tokuno
  • Positive electrode active material for lithium ion secondary battery
    Publication number: 20030124424
    Abstract: Disclosed is a positive electrode active material for a lithium ion secondary battery, including lithium-transition metal composite oxide of a layer crystal structure, in which the lithium-transition metal composite oxide contains an element that improves conductivity of electrons in the lithium-transition metal composite oxide. Use of this positive electrode active material can improve cycle characteristics, high rate characteristics and thermal stability of lithium ion secondary batteries. Furthermore, by use of this positive electrode active material, gas generation in batteries can be decreased.
    Type: Application
    Filed: December 17, 2002
    Publication date: July 3, 2003
    Applicant: Nichia Corporation
    Inventors: Takeshi Takahashi, Masuhiro Morizaki, Atsushi Takeoka, Junichi Tokuno