Patents by Inventor Kazuto Esaki

Kazuto Esaki 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 and apparatus for measurement and automatic control of acid concentration
    Patent number: 6650119
    Abstract: An acid concentration continuous measuring apparatus is equipped with the combination of a body having a flow path through which pickling solution contained in a pickling tank is made to continuously pass in a single direction, a density sensor, a temperature sensor, and a conductivity sensor which are installed on the body and substantially continuously measure the pickling solution flowing along the flow path, and a calculating apparatus which calculates the acid concentration of the pickling solution based on the measured results. Feedback control of the hydrochloric acid concentration in a final pickling tank of a plurality of pickling tanks forming a continuous pickling line is performed using the acid concentration continuous measuring apparatus.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: November 18, 2003
    Assignees: Sumitomo Metal Industries, Ltd., Kabushiki Kaisha Toshiba
    Inventors: Toshihiko Nonaka, Takeo Kataoka, Kazuto Esaki
  • Method and apparatus for measurement and automatic control of acid concentration
    Publication number: 20020130666
    Abstract: An acid concentration continuous measuring apparatus is equipped with the combination of a body having a flow path through which pickling solution contained in a pickling tank is made to continuously pass in a single direction, a density sensor, a temperature sensor, and a conductivity sensor which are installed on the body and substantially continuously measure the pickling solution flowing along the flow path, and a calculating apparatus which calculates the acid concentration of the pickling solution based on the measured results. Feedback control of the hydrochloric acid concentration in a final pickling tank of a plurality of pickling tanks forming a continuous pickling line is performed using the acid concentration continuous measuring apparatus.
    Type: Application
    Filed: May 16, 2002
    Publication date: September 19, 2002
    Inventors: Toshihiko Nonaka, Takeo Kataoka, Kazuto Esaki
  • Method and apparatus for measurement and automatic control of acid concentration
    Patent number: 6396280
    Abstract: An acid concentration continuous measuring apparatus is equipped with the combination of a body having a flow path through which pickling solution contained in a pickling tank is made to continuously pass in a single direction, a density sensor, a temperature sensor, and a conductivity sensor which are installed on the body and substantially continuously measure the pickling solution flowing along the flow path, and a calculating apparatus which calculates the acid concentration of the pickling solution based on the measured results. Feedback control of the hydrochloric acid concentration in a final pickling tank of a plurality of pickling tanks forming a continuous pickling line is performed using the acid concentration continuous measuring apparatus.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: May 28, 2002
    Assignees: Sumitomo Metal Industries, Ltd., Kabushiki Kaisha Toshiba
    Inventors: Toshihiko Nonaka, Takeo Kataoka, Kazuto Esaki