Patents by Inventor Mitsukuni Kondou

Mitsukuni Kondou 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).

  • Cathode active material for a nonaqueous electrolyte secondary battery and manufacturing method thereof, and a nonaqueous electrolyte secondary battery that uses cathode active material
    Patent number: 9601772
    Abstract: The present invention provides a cathode active material that makes possible a high capacity nonaqueous electrolyte secondary battery that has excellent discharge load characteristics that provide both good cycle characteristics and thermal stability. The cathode active material comprises a lithium nickel composite oxide having the compositional formula LiNi1?aMaO2 (where, M is at least one kind of element that is selected from among a transitional metal other than Ni, a group 2 element, and group 13 element, and 0.01?a?0.5) to which fine lithium manganese composite oxide particle adhere to the surface thereof. This lithium nickel composite oxide is obtained by adding manganese salt solution to a lithium nickel composite oxide slurry, causing manganese hydroxide that contains lithium to adhere to the surface of the lithium nickel composite oxide particles, and then baking that lithium nickel composite oxide.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: March 21, 2017
    Assignees: SUMITOMO METAL MINING CO. LTD., MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Hideo Sasaoka, Ryuuichi Kuzuo, Atsushi Fukui, Mitsukuni Kondou, Shin Imaizumi, Kensuke Nakura, Shuji Tsutsumi
  • CATHODE ACTIVE MATERIAL FOR A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF, AND A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY THAT USES CATHODE ACTIVE MATERIAL
    Publication number: 20080311473
    Abstract: The present invention provides a cathode active material that makes possible a high capacity nonaqueous electrolyte secondary battery that has excellent discharge load characteristics that provide both good cycle characteristics and thermal stability. The cathode active material comprises a lithium nickel composite oxide having the compositional formula LiNi1?aMaO2 (where, M is at least one kind of element that is selected from among a transitional metal other than Ni, a group 2 element, and group 13 element, and 0.01?a?0.5) to which fine lithium manganese composite oxide particle adhere to the surface thereof. This lithium nickel composite oxide is obtained by adding manganese salt solution to a lithium nickel composite oxide slurry, causing manganese hydroxide that contains lithium to adhere to the surface of the lithium nickel composite oxide particles, and then baking that lithium nickel composite oxide.
    Type: Application
    Filed: February 20, 2008
    Publication date: December 18, 2008
    Inventors: Hideo SASAOKA, Ryuuichi Kuzuo, Atsushi Fukui, Mitsukuni Kondou, Shin Imaizumi, Kensuke Nakura, Shuji Tsutsumi