Patents by Inventor Mitsuo Tanuma

Mitsuo Tanuma 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).

  • Thin layer liquid film type evaporator
    Patent number: 5419814
    Abstract: A thin layer liquid film type evaporator including a cylindrical heating column, a heater for heating the cylindrical heating column, a liquid film forming plate disposed in the cylindrical heating column, a baffle also disposed in the cylindrical heating column and a feed nozzle disposed at the upper center of the cylindrical heating column. The liquid film forming plate has an outer diameter such that a clearance may be formed between the outer edge thereof and the inner circumferential surface of the heating column and that the liquid may flow through the clearance. Thus, a thin layer liquid film type evaporator which has a simple mechanism and can exhibit excellent evaporation efficiency can be provided.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: May 30, 1995
    Assignees: Idemitsu Kosan Corporation Limited, Tokyo Rikakikai Co., Ltd.
    Inventors: Takatoshi Kunihiro, Takao Katayama, Shinichi Ariga, Mitsuo Tanuma