Patents Assigned to Mitsubishi Seishi Kabushiki Kaisha
  • Method of pipe line washing
    Patent number: 4472242
    Abstract: A method of pipe line washing is described, in which raw pulp liquid is washed by clean water or washing liquid having a lower concentration than liquid chemicals in the raw pulp liquid by making use of all or a part of a pipe line.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: September 18, 1984
    Assignees: Mitsubishi Jukogyo Kabushiki Kaisha, Mitsubishi Seishi Kabushiki Kaisha
    Inventors: Akira Osawa, Jun Nakamura, Tadashi Izawa, Yoshiyuki Saito