ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,414,636, issued on Sept. 16, was assigned to Paramount Bed Co. Ltd. (Tokyo).
"Air mattress" was invented by Kenta Ohno (Tokyo) and Hidekazu Nagai (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to embodiments, an air mattress includes an air cell unit and a controller. The air cell unit includes a first air cell and a second air cell. The controller is capable of independently controlling a first internal pressure in the first air cell and a second internal pressure in the second air cell. The controller performs, when receiving an input to change the second internal pressure, after a first operation to set the first internal pressure t...