Patents by Inventor Tetsuo Kimura

Tetsuo Kimura 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 preparing alcohols
    Patent number: 4060564
    Abstract: A process for preparing alcohols which comprises hydrating lower olefins in liquid phase with an aqueous 0.1 to 20.0 wt % phosphoric acid solution containing 0.001 to 1.0 wt % of an oxyacid of chromium or a salt thereof to give corresponding alcohols.
    Type: Grant
    Filed: January 5, 1977
    Date of Patent: November 29, 1977
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Muneaki Kanemaru, Tetsuo Kimura, Norimichi Ishii, Hideo Kawashima
  • Method of recovering unreacted ammonium carbamate in urea synthesis
    Patent number: 3944605
    Abstract: Unreacted ammonium carbamate contained in urea synthesis effluent obtained by reacting ammonia and carbon dioxide at urea synthesis pressures and temperatures is recovered by a method comprising subjecting the urea synthesis effluent to a three-stage decomposition to decompose the unreacted ammonium carbamate in each stage, the first stage and the second stage of which are operated at a gauge pressure of at least 30 kg/cm.sup.2 and a gauge pressure of from 10 to 25 kg/cm.sup.
    Type: Grant
    Filed: January 28, 1974
    Date of Patent: March 16, 1976
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Shigeru Inoue, Tetsuo Kimura
  • Method for eliminating metals from a solution containing a very slight amount of the metals
    Patent number: 3932274
    Abstract: Metal ions are effectively eliminated from aqueous solutions containing the ame by treating the solution with a metal sequestering agent which is a condensation product of a higher alkyl halide with a polyamine.
    Type: Grant
    Filed: June 11, 1974
    Date of Patent: January 13, 1976
    Assignee: Director-General of the Agency of Industrial Science and Technology
    Inventors: Gaku Izumi, Tetsuo Kimura, Katsuyoshi Mori, Michiko Koizumi