Patents by Inventor Mikihito Sugiyama

Mikihito Sugiyama 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).

  • Publication number: 20220056604
    Abstract: Apparatus for producing alkali hydroxide and method for operating apparatus for producing alkali hydroxide are provided. A cooling chamber through which a coolant can pass is constructed by placing a separation wall in a cathode chamber on a side opposite to an ion-exchange membrane, and a flow rate adjuster, such as manual valves, which can adjust the supply flow rate of the coolant is placed in each unit cell. The electrolytic temperature of each unit cell is regulated at an optimum operating temperature depending on the current density by adjusting the flow rate of the coolant without individually adjusting the flow rate of salt water supplied to the unit cell or the concentration of the salt water.
    Type: Application
    Filed: November 7, 2021
    Publication date: February 24, 2022
    Applicants: TOAGOSEI CO., LTD., KANEKA CORPORATION
    Inventors: Tsutomu OHNISHI, Tsugiyoshi OSAKABE, Tatsurou YAMASHITA, Takuya SHIMURA, Mikihito SUGIYAMA, Yukinori IGUCHI
  • Publication number: 20190226104
    Abstract: Apparatus for producing alkali hydroxide and method for operating apparatus for producing alkali hydroxide are provided. A cooling chamber through which a coolant can pass is constructed by placing a separation wall in a cathode chamber on a side opposite to an ion-exchange membrane, and a flow rate adjuster, such as manual valves, which can adjust the supply flow rate of the coolant is placed in each unit cell. The electrolytic temperature of each unit cell is regulated at an optimum operating temperature depending on the current density by adjusting the flow rate of the coolant without individually adjusting the flow rate of salt water supplied to the unit cell or the concentration of the salt water.
    Type: Application
    Filed: March 31, 2017
    Publication date: July 25, 2019
    Applicants: TOAGOSEI CO., LTD., KANEKA CORPORATION
    Inventors: Tsutomu OHNISHI, Tsugiyoshi OSAKABE, Tatsurou YAMASHITA, Takuya SHIMURA, Mikihito SUGIYAMA, Yukinori IGUCHI
  • Patent number: 9181624
    Abstract: Disclosed is an electrolysis method, whereby sodium chloride concentration of an aqueous caustic soda solution formed through electrolysis in a two-chamber ion-exchange membrane sodium chloride electrolytic cell, which is equipped with a gas diffusion electrode as a cathode and divided into an anode chamber containing an anode and a cathode gas chamber containing the cathode that are partitioned by an ion-exchange membrane, is lowered. In a two-chamber ion-exchange membrane electrolytic cell (1) using a gas diffusion electrode (7), electrolysis is performed while reducing the pressure difference between the liquid pressure in the anode chamber and the gas pressure in the cathode gas chamber, i.e.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: November 10, 2015
    Assignees: CHLORINE ENGINEERS CORP., LTD., KANEKA CORPORATION, TOAGOSEI CO., LTD.
    Inventors: Mikihito Sugiyama, Yukinori Iguchi, Kiyohito Asaumi
  • Publication number: 20120048743
    Abstract: Disclosed is an electrolysis method, whereby sodium chloride concentration of an aqueous caustic soda solution formed through electrolysis in a two-chamber ion-exchange membrane sodium chloride electrolytic cell, which is equipped with a gas diffusion electrode as a cathode and divided into an anode chamber containing an anode and a cathode gas chamber containing the cathode that are partitioned by an ion-exchange membrane, is lowered. In a two-chamber ion-exchange membrane electrolytic cell (1) using a gas diffusion electrode (7), electrolysis is performed while reducing the pressure difference between the liquid pressure in the anode chamber and the gas pressure in the cathode gas chamber, i.e.
    Type: Application
    Filed: April 15, 2010
    Publication date: March 1, 2012
    Applicants: CHLORINE ENGINEERS CORP., LTD, TOAGOSEI CO., LTD, KANEKA CORPORATION
    Inventors: Mikihito Sugiyama, Yukinori Iguchi, Kiyohito Asaumi