Patents by Inventor Yoshiko KUMAGAI

Yoshiko KUMAGAI 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).

  • ELECTROCHEMICAL GAS SENSOR, OZONE GENERATOR, AND HUMIDIFIER
    Publication number: 20240102957
    Abstract: In an electrochemical gas sensor (10), a first sensing element (21) is stored in a first storage portion (31). A moisture permeable film (24) is disposed in a first introduction inlet (31A) of the first storage portion (31). The moisture permeable film (24) substantially prevents a to-be-detected gas from permeating therethrough. A second sensing element (22) is disposed in a space into which water vapor and the to-be-detected gas contained in a target gas flow. In such a configuration, the electrochemical gas sensor (10) is capable of detecting a to-be-detected gas having a concentration of 0 or more and 1 ppm or less.
    Type: Application
    Filed: March 8, 2022
    Publication date: March 28, 2024
    Inventors: Shinichiro KITO, Masayuki SEGAWA, Takahiro YOKOYAMA, Junya IMAIZUMI, Yuki MIZUTANI, Masahiro TANAKA, Yoshiko KUMAGAI