ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,444, issued on Sept. 30, was assigned to NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY (Japan).
"Moisture sensor" was invented by Masato Futagawa (Hamamatsu, Japan) and Kisho Sakamoto (Hamamatsu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The soil moisture sensor includes a thermoelectric element disposed in the soil, a first temperature information acquisition unit acquiring a first temperature information that indicates a temporal change in temperature of the soil due to an operation of the thermoelectric element, a second temperature information acquisition unit acquiring a second temperature information that indicates a temporal...