Patents by Inventor Taichi Katsuki

Taichi Katsuki 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).

  • Method of and apparatus for controlling rate of material air supply to air separation plant
    Patent number: 4261719
    Abstract: A method of and apparatus for optimizing the rate of material air supply to an air separation plant, for preserving a stable operation of the plant, through stabilizing heat balance and material balance in the plant irrespective of variation in the flow rate of a gas through an expansion turbine incorporated in the plant and the flow rate of product gases so as to optimize the purity and amount of produced gas. The control for the optimization is performed making a ratio of the difference between the flow rate of the material air and the flow rate of the gas through the expansion turbine to the flow rate of the product gases, as an essential factor for the control.
    Type: Grant
    Filed: January 25, 1979
    Date of Patent: April 14, 1981
    Assignee: Kobe Steel, Ltd.
    Inventors: Akiyoshi Gotoh, Taichi Katsuki, Takaharu Goto, Takumi Mizokawa, Noritoshi Sakai
  • Method and apparatus for automatic change of operations in air separation plant
    Patent number: 4251248
    Abstract: A method and apparatus for automatic change of operations in an air separation plant in increasing or decreasing the amounts of products. The present invention is characterized in that intended change values of the flow rate of feed air to be introduced into an air separation plant, the flow rate of liquid air recycled to an upper tower from a lower tower of a rectification column, the flow rate of recycled liquid nitrogen and the flow rate of an expansion turbine gas flowing in an expansion turbine are computed from the values of increased or decreased amounts of products.
    Type: Grant
    Filed: May 4, 1979
    Date of Patent: February 17, 1981
    Assignee: Kobe Steel, Limited
    Inventors: Takeshi Iyoki, Taichi Katsuki, Takumi Mizokawa, Takaharu Goto
  • Temperature balancing method for reversing heat exchangers
    Patent number: 4034420
    Abstract: Disclosed is a new and improved method for automatically balancing the temperature of a plurality of reversing heat exchanger units provided in parallel relation with each other. The balancing method comprises the steps of: detecting the temperature in portions of each core of the reversing heat exchangers whenever the flow paths of a feed stream and a heat medium stream are changed over, calculating a mean temperature of each core from the said detected values during the most recent certain changeover period from the current time point, calculating a mean temperature for all exchangers from the said calculated mean temperatures of each core, calculating deviation and deviation trend in temperature of respective exchangers depending on a difference between the mean temperature of each core and the mean temperature of all exchangers, feeding back a system deviation in dependence on the said deviation and deviation trend to control valves for balancing the temperature of reversing heat exchangers.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: July 12, 1977
    Assignee: Kobe Steel Ltd.
    Inventors: Akiyoshi Gotoh, Takumi Mizokawa, Yukio Sawada, Taichi Katsuki