ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,142, issued on Sept. 16, was assigned to TOTO Ltd. (Kitakyushu, Japan).
"Discharge valve device, flush water tank device, and flush toilet" was invented by Yuta Kondo (Kitakyushu, Japan), Haruki Matsuda (Kitakyushu, Japan), Koichiro Hiwa (Kitakyushu, Japan) and Yuki Shimokawa (Kitakyushu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A discharge valve device includes a valve body, an actuation shaft, a water storage cylinder, and a float, and from when the valve body opens to when the valve body closes, either flushing mode of a large flushing mode in which the flush water in a water storage tank is supplied from a discharge opening to the f...