Patents by Inventor Koutaro Kobayashi

Koutaro Kobayashi 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 secondary battery
    Patent number: 6506518
    Abstract: A lithium secondary battery capable of improving high temperature cycle life characteristic effectively without decreasing discharge capacity. Amorphous carbon powder with a specific surface area of 10.0 m2/g and a mean particle diameter of 7.0 &mgr;m is used as negative electrode active material and lithium manganate with a Li/Mn ratio of 0.58 is used as positive electrode active material. Since a surface area of the negative electrode active material layer is made large by setting the mean particle diameter of the amorphous carbon powder to 10 &mgr;m or less, the surface area of the negative electrode active material layer is sufficiently large that, even when inert coating is formed on the surface of the negative electrode due to manganese deposition caused by manganese elution from the positive electrode, high temperature cycle life characteristic can be improved without high temperature deterioration.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: January 14, 2003
    Assignee: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Koutaro Kobayashi, Yoshimasa Koishikawa, Kensuke Hironaka
  • Bernoulli effect air nozzle for silicone wafer pickup tool
    Patent number: D530352
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: October 17, 2006
    Assignee: Harmotec Co., Ltd.
    Inventors: Hitoshi Iwasaka, Hideyuki Tokunaga, Koutaro Kobayashi