Patents Assigned to Showa Denko K.K. Corporations
  • Method for suppression of electrification
    Patent number: 5256454
    Abstract: Electrification is suppressed with a water-soluble electrification-suppressing film having an electron conductivity and comprising a polymer resin. A high electrification-suppressing effect which is also high in vacuum can be easily obtained by using the electrification-suppressing film with less contamination.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: October 26, 1993
    Assignees: Hitachi, Ltd., Showa Denko K.K. Corporations
    Inventors: Fumio Murai, Yasunori Suzuki, Hideki Tomozawa, Ryuma Takashi, Yoshihiro Saida, Yoshiaki Ikenoue