Patents Assigned to Taidisha Ltd.
  • Patent number: 4201644
    Abstract: The present invention relates to a method for replenishing an electrodeposition coating bath by subjecting to an ultrafiltration, an electro-deposition bath liquid which has been decomposed with time under a pressure of 0.2-3.0 kg/cm.sup.2 changing the direction of the bath liquid during the ultrafiltration step so as to cause the liquid to flow in opposite directions in the ultrafiltering apparatus; recycling the concentrate obtained from the ultrafiltration to the electrodeposition coating bath for the purpose of adjusting the liquid characteristics of the bath and using the thus-obtained filtrate, obtained from the ultrafiltration, the diluent for preparing a replenishing supply liquid.
    Type: Grant
    Filed: September 29, 1978
    Date of Patent: May 6, 1980
    Assignees: Shinto Paint Co., Ltd., Honda Motor Co., Ltd., Taidisha Ltd.
    Inventors: Nobuaki Todoroki, Junichi Yasukawa, Norio Kawamura, Akio Kasai, Satoru Kamiyama, Toshihiro Kawasaki