Patents by Inventor Shuhel Kubota

Shuhel Kubota 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).

  • Current collectors for battery
    Patent number: 6410189
    Abstract: This invention provides a polymer rechargeable battery, which is obtained by integrally holding a separator, which comprises a polymer and a plasticizer, between positive and negative electrodes and then replacing the plasticizer with an electrolyte solution. The positive and negative electrodes are provided with current collectors obtained by etching metal-foil base materials, respectively. This invention also provides such current collectors. The polymer rechargeable battery according to this invention is excellent in impedance characteristic, load characteristic and the like.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: June 25, 2002
    Assignee: Tokai Aluminum Fiol Co., Ltd.
    Inventors: Kazunori Yamada, Toshiaki Watanabe, Shuhel Kubota, Shizuo Sugawara