ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,724,489, issued on Sept. 1, was assigned to ALPS ALPINE Co. LTD. (Tokyo).
"Stylus pen and input system" was invented by Hiroshi Wakuda (Miyagi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A stylus pen includes: a pen part; a vibrator provided in the pen part; and a controller configured to generate a drive signal for driving the vibrator. The controller is configured to generate the drive signal such that the vibrator, when driven by the drive signal, causes the pen part to vibrate based on an impulse response of a spring-mass-damper system."
The patent was filed on May 28, 2025, under Application No. 19/220,607.
*For further information, inc...