Patents by Inventor Tatsurou YAMASHITA

Tatsurou YAMASHITA 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).

  • Patent number: 11946149
    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: Grant
    Filed: November 7, 2021
    Date of Patent: April 2, 2024
    Assignees: TOAGOSEI CO., LTD., KANEKA CORPORATION
    Inventors: Tsutomu Ohnishi, Tsugiyoshi Osakabe, Tatsurou Yamashita, Takuya Shimura, Mikihito Sugiyama, Yukinori Iguchi
  • 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