NHK Spring Assigned Two Patents
On tape drive technologies and solutions
By Francis Pelletier | December 9, 2025 at 2:00 pmHead driving device configured to move head member relative to tape as recording medium and configured to stably hold head member
NHK Spring Co., Ltd., Yokohama, Japan, has been assigned a patent (12482495) developed by Kuwata; Ryo, Nashimoto; Gaku, Nishida; Tatsuhiko, Arai; Mikio, Nakayama; Hiroshi, and Kuchiwaki; Isamu, Yokohama, Japan, for “head driving device configured to move a head member relative to tape as a recording medium and configured to stably hold the head member.“
The abstract of the patent published by the U.S. Patent and Trademark Office states: “A head driving device includes a base member, a head supporting member, a beam member, a piezoelectric unit, and a reinforcement member. The reinforcement member includes a first portion and a second portion. The first portion is arranged between a first end portion in a length direction of a head member and the base member. The second member is arranged between a second end portion in a length direction of the head member and the base member. The reinforcement member allows the head supporting member to move in a direction along a surface of tape and controls the head supporting member from moving in a thickness direction of the head member.”
The patent application was filed on 2024-04-19 (18/640230).
Tape drive device and method of detecting state of head unit of tape drive device
NHK Spring Co., Ltd., Yokohama, Japan, has been assigned a patent (12482490) developed by Arai; Mikio, Yokohama, Japan, for “tape drive device and method of detecting state of head unit of tape drive device.“
The abstract of the patent published by the U.S. Patent and Trademark Office states: “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 generated at the piezoelectric element provided in the suspension member.”
The patent application was filed on 2024-04-19 (18/640961).












