Patents by Inventor Yasuhiko Arimori

Yasuhiko Arimori 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).

  • Separation and Purification Apparatus and Separation and Purification Method of Unsaturated Hydrocarbons
    Publication number: 20070256920
    Abstract: For example, a separation and purification apparatus having an extractive distillation tower 4 for separating and purifying butadiene, impurity concentration sensors 32, 34 for detecting the concentrations of specific impurities other than butadiene, a target material concentration sensor for detecting the concentration of butadiene in the extractive distillation tower, and a differential pressure sensor 30 for detecting the differential pressure between the top and bottom of the extractive distillation tower 4 and a separation and purification method. The method calculates a concentration of a specific impurity after a predetermined time, a concentration of butadiene at the top, and a forecasted value of the differential pressure between the top and bottom based on the sensors and controls operations based on the forecasted values by a concentration predictive control means 60.
    Type: Application
    Filed: August 29, 2005
    Publication date: November 8, 2007
    Inventors: Masanobu Kanauchi, Yasuhiko Arimori
  • Apparatus for separation and purification of saturated hydrocarbon and method for separation and purification
    Patent number: 6413378
    Abstract: An extractive distillation tower 4 supplied with a feedstock containing butadiene and a solvent and for distilling the feedstock to separate and purify the butadiene.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: July 2, 2002
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Masanobu Kanauchi, Yasuhiko Arimori, Toshihiro Nakano