Patents by Inventor Kouichi Ui

Kouichi Ui 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 polymer secondary battery
    Patent number: 7629079
    Abstract: A lithium secondary battery which comprises: a negative electrode comprising as an active material a carbonaceous material capable of electrochemically holding/releasing lithium; a positive electrode comprising as an active material a lithium chalcogenide; and polymer electrolyte layers united respectively with the negative electrode and the positive electrode. The polymer electrolyte layers comprise an ionically conductive polymer matrix holding a nonaqueous electrolytic solution. They are obtained by crosslinking and polymerizing a liquid mixture of a monomeric precursor for the ionically conductive polymer and the nonaqueous electrolytic solution respectively on the negative electrode and the positive electrode using different polymerization initiators.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: December 8, 2009
    Assignees: Dai-Ichi Kogyo Seiyaki Co., Ltd., Sharp Corporation
    Inventors: Tsutomu Sada, Kazunari Takeda, Yumiko Takashima, Naoto Nishimura, Takehito Mitate, Kazuo Yamada, Motoaki Nishijima, Naoto Torata, Kouichi Ui
  • Lithium polymer secondary battery
    Publication number: 20040043296
    Abstract: A lithium secondary battery which comprises:
    Type: Application
    Filed: September 15, 2003
    Publication date: March 4, 2004
    Inventors: Tsutomu Lithium, Kazunari Takeda, Yumiko Takashima, Naoto Nishimura, Takehito Mitate, Kazuo Yamada, Motoaki Nishijima, Naoto Torata, Kouichi Ui