ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,228, issued on April 21, was assigned to J. MORITA MFG. CORP. (Kyoto, Japan).
"Dental handpiece" was invented by Hitoshi Tanaka (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A dental handpiece includes a main body portion, a holding portion, and a releasing mechanism. The releasing mechanism includes a cap, a cap ring, and a push cap. The cap includes an outer annular portion and an inner annular portion provided with at least one window portion. The push cap is configured to be movable to a releasing position between the outer annular portion and the inner annular portion in a direction in which the push cap is put on the cap ring, ...