Patents by Inventor Tohru Hitomi

Tohru Hitomi 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).

  • Lithium primary battery and manufacturing method therefor
    Patent number: 8062793
    Abstract: A lithium primary battery including a positive electrode, a negative electrode, an organic electrolyte, and a separator interposed between the positive electrode and the negative electrode: the negative electrode including a negative electrode active material; the negative electrode active material being at least one selected from the group consisting of lithium metal and a lithium alloy; at least a surface layer portion of the negative electrode including a composite of amorphous carbon material and the negative electrode active material; and the surface layer portion facing the positive electrode with the separator interposed therebetween.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: November 22, 2011
    Assignee: Panasonic Corporation
    Inventors: Kenichi Morigaki, Susumu Yamanaka, Tohru Hitomi, Shinji Fujii, Toshihiko Ikehata
  • LITHIUM PRIMARY BATTERY
    Publication number: 20100009268
    Abstract: The present invention intends to provide a lithium primary battery excellent in large-current discharge characteristics in a low temperature environment without sacrificing the high-temperature storage characteristics. The present invention relates to a lithium primary battery including a positive electrode including a fluoride as a positive electrode active material, a negative electrode including metallic lithium or a lithium alloy as a negative electrode active material, a separator interposed between the positive electrode and the negative electrode, and an electrolyte. The positive electrode further includes a metal oxide being capable of absorbing and desorbing lithium ions, having a spinel structure, and having a discharge potential versus lithium lower than that of the fluoride.
    Type: Application
    Filed: October 18, 2006
    Publication date: January 14, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Tohru Hitomi, Susumu Yamanaka, Shinji Fujii, Kenichi Takata, Kenichi Morigaki
  • Lithium Primary Battery and Manufacturing Method Therefor
    Publication number: 20090123844
    Abstract: A lithium primary battery including a positive electrode, a negative electrode, an organic electrolyte, and a separator interposed between the positive electrode and the negative electrode: the negative electrode including a negative electrode active material; the negative electrode active material being at least one selected from the group consisting of lithium metal and a lithium alloy; at least a surface layer portion of the negative electrode including a composite of amorphous carbon material and the negative electrode active material; and the surface layer portion facing the positive electrode with the separator interposed therebetween.
    Type: Application
    Filed: October 7, 2005
    Publication date: May 14, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Kenichi Morigaki, Susumu Yamanaka, Tohru Hitomi, Shinji Fujii, Toshihiko Ikehata