ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,030, issued on March 25, was assigned to Colgate-Palmolive Co. (New York) and Omron Healthcare Co. Ltd. (Japan).
"Electric toothbrush, brush unit, and method for operating an electric toothbrush" was invented by Hideaki Yoshida (Kyoto, Japan), Mamoru Katano (Kyoto, Japan), Masashi Kitamura (Kyoto, Japan) and Toshifumi Matsumoto (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In one embodiment, the invention can be a brush unit detachable from a main body unit of an electric toothbrush. The brush unit includes: a light transmitting part included on a front surface of the brush unit, a plurality of tooth cleaning elements extending from ...