Patents by Inventor Fukuji Tsubota

Fukuji Tsubota 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).

  • Sealing material for electrochemical element and electrochemical element containing the same
    Publication number: 20030148179
    Abstract: In order to give excellent hermeticity in a broad temperature range to an electrochemical device, a sealant comprising a rubber component and a tackifier is used, the rubber component comprising at least one of butyl rubber and polyisobutylene rubber, the tackifier comprising at least one selected from the group consisting of a terpene resin, an aliphatic petroleum resin and an alicyclic petroleum resin.
    Type: Application
    Filed: April 3, 2003
    Publication date: August 7, 2003
    Inventors: Takao Uyama, Mitsugu Okahisa, Toshihiko Ikehata, Susumu Yamanaka, Toshihide Okamoto, Shigenori Sato, Yoshinori Tanaka, Fukuji Tsubota