Patents by Inventor Kouji Utsugi

Kouji Utsugi 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).

  • Anode for a secondary battery
    Publication number: 20030129497
    Abstract: An anode for use in a non-aqueous-electrolyte secondary battery includes an active material film for occluding and releasing lithium ions, and an amorphous carbon film or a diamond-like carbon film covering the active material film for suppressing growth of dendrite and degradation of the anode, thereby achieving improved cycle lifetime of the secondary battery.
    Type: Application
    Filed: September 3, 2002
    Publication date: July 10, 2003
    Applicant: NEC CORPORATION
    Inventors: Hironori Yamamoto, Mitsuhiro Mori, Jiro Iriyama, Kouji Utsugi, Tamaki Miura, Yutaka Bannai, Mariko Miyachi
  • Lithium secondary battery with an improved negative electrode structure and method of forming the same
    Publication number: 20030003364
    Abstract: A lithium secondary battery includes: a positive electrode; and a negative electrode, which further includes a lamination structure comprising: a lithium ion supporting layer capable of supporting lithium ions; and an amorphous-state lithium-based layer in contact directly with the lithium ion supporting layer.
    Type: Application
    Filed: June 14, 2002
    Publication date: January 2, 2003
    Applicant: NEC CORPORATION
    Inventors: Mitsuhiro Mori, Kouji Utsugi, Hironori Yamamoto, Jiro Iriyama, Tamaki Miura