Patents by Inventor Syoji Kitado

Syoji Kitado 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).

  • Preparation process of acrylamide crystals
    Patent number: 4670590
    Abstract: Acrylamide crystals are prepared from an aqueous solution of acrylamide by causing the aqueous solution and a coolant to flow inside each electrolytically-polished cooling tube of a double-walled or shell-and-tube heat exchanger and outside the cooling tube, respectively, instead of relying upon vacuum crystallization.
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: June 2, 1987
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Yoshihiko Kambara, Shiro Asano, Wataru Isozaki, Syoji Kitado, Masao Yamaguchi