ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,265, issued on May 5, was assigned to LIXIL Corp. (Tokyo).
"Cylinder lock and door" was invented by Fuminori Akiyama (Tokyo) and Takashi Mitsuhashi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cylinder lock is disclosed that is capable of preventing a driver pin from falling over inside a pin hole even when the driver pin has been shortened. The cylinder lock comprises an outer cylinder and an inner cylinder that rotatably fits into the outer cylinder. The outer cylinder and the inner cylinder each have a hole formed therein which connects to a key hole and into which the driver pin can be inserted. The diameter of the outer cylinder side o...