ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,482,490, issued on Nov. 25, was assigned to NHK SPRING Co. LTD. (Yokohama, Japan).
"Tape drive device and method of detecting state of head unit of tape drive device" was invented by Mikio Arai (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tape drive device includes a head member, a tape drive mechanism moving a tape, a suspension member supporting the head member, piezoelectric units, a drive voltage supply circuit applying a voltage to a piezoelectric element, and a controller. Each of the piezoelectric units includes a piezoelectric element. The controller determines a state of a head unit, based on a piezoelectric output generate...