公开(公告)号：US20230154490A1

公开(公告)日：2023-05-18

申请号：US17986333

申请日：2022-11-14

Applicant: NHK SPRING CO., LTD.

Inventor： Masao HANYA ,  Ryo KUWATA

IPC: G11B5/48

CPC classification number: G11B5/4873 ,  G11B5/4833

Abstract: A head driving device includes a head supporting portion supporting a head member, a first beam, a second beam, a first piezoelectric unit including a pair of piezoelectric elements, and a second piezoelectric unit including a pair of piezoelectric elements. When voltage is applied to the piezoelectric elements of the first piezoelectric unit, the piezoelectric elements deform, and a distal end of the first beam moves. The piezoelectric elements of the second piezoelectric unit also deform by application of voltage, and moves a distal end of the second beam in a same direction as the distal end of the first beam.

公开(公告)号：US20240386907A1

公开(公告)日：2024-11-21

申请号：US18640230

申请日：2024-04-19

Applicant: NHK SPRING CO., LTD.

Inventor： Ryo KUWATA ,  Gaku NASHIMOTO ,  Tatsuhiko NISHIDA ,  Mikio ARAI ,  Hiroshi NAKAYAMA ,  Isamu KUCHIWAKI

IPC: G11B5/48 ,  G11B5/008

Abstract: 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.

公开(公告)号：US20240153534A1

公开(公告)日：2024-05-09

申请号：US18406387

申请日：2024-01-08

Applicant: NHK SPRING CO., LTD.

Inventor： Masao HANYA ,  Ryo KUWATA

IPC: G11B5/48

CPC classification number: G11B5/4873 ,  G11B5/4833

Abstract: A data storage device includes a tape as a recording medium; a head member including a length larger than a width of the tape; and an electrical element expanding and contracting based on a polarity and an applied voltage. The head member is moved in a state where the voltage is applied and the electrical element expands or contracts.