ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,144, issued on Oct. 21, was assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co. LTD. (Osaka, Japan).

"Ventilator with humidity control function" was invented by Shotaro Yamaguchi (Aichi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Ventilator includes humidity controller that humidifies or dehumidifies supply airflow, and control unit that controls operation of humidity controller. Control unit brings a relative humidity closer to target humidity, when a temperature of an indoor space is higher than or equal to a first reference temperature and lower than or equal to a second reference temperature, by using the relative humidity of th...