Patents by Inventor Shintaro Tsuruta

Shintaro Tsuruta 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).

  • Process for azeotropic distillation
    Patent number: 4204915
    Abstract: An azeotropic distillation is conducted by feeding a part of an entrainer to the lower region of an azeotropic zone in a distillation column.
    Type: Grant
    Filed: March 17, 1978
    Date of Patent: May 27, 1980
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Kenzi Kurata, Toshito Fukumoto, Yuji Yoshida, Masanori Kusama, Shintaro Tsuruta