A hard disk drive includes a first actuator and a second actuator. The first actuator is coupled to a first slider, which includes a first read transducer and a first write transducer. Both the first read transducer and the first write transducer are positioned away from a first longitudinal centerline of the first slider. The second actuator is coupled to a second slider, which includes a second read transducer and a second write transducer. Both the second read transducer and the second write transducer are positioned away from a second longitudinal centerline of the second slider.

According to one embodiment, a magnetic disk device includes a disk, a head including a first write head and a second write head configured to write data to the disk and a read head configured to read data from the disk, and a controller configured to write write data to a first area of the disk with the first write head and to overwrite the write data written with the first write head in the first area with the second write head.

An apparatus comprises a slider comprising an air bearing surface (ABS). The slider comprises a reader, a writer, and a reader heater. The reader heater is configured to cause a protrusion of the ABS proximate the reader, and the reader heater comprises a first planar loop and a second planar loop, wherein the first and second loops are in the same plane.

A hard disk drive includes a first actuator and a second actuator. The first actuator is coupled to a first slider, which includes a first read transducer and a first write transducer. Both the first read transducer and the first write transducer are positioned away from a first longitudinal centerline of the first slider. The second actuator is coupled to a second slider, which includes a second read transducer and a second write transducer. Both the second read transducer and the second write transducer are positioned away from a second longitudinal centerline of the second slider.

According to one embodiment, a head suspension assembly includes a support plate having a proximal end and a distal end, a wiring member on the support plate and including a metal plate and a wiring board laid on the metal plate, the metal plate including a first joined portion joined to the support plate close to the distal end and a second joined portion joined to the support plate and located on a proximal end side of the support plate, a head mounted on the wiring member, an extendable piezoelectric element mounted on the wiring member, and a damper including a viscoelastic layer and a constraint layer stacked on the viscoelastic layer and attached to the support plate to cover the first joined portion and the second joined portion.

Disclosed herein are magnetic storage media with embedded disconnected circuits, and magnetic storage systems comprising such media. A magnetic storage media comprises a recording layer comprising a storage location, and an embedded disconnected circuit (EDC) configured to assist in at least one of writing to or reading from the storage location in response to a wireless activation signal. A magnetic storage system comprises a signal generator configured to generate a wireless activation signal, a magnetic storage media with a plurality of storage locations, and a write transducer and/or a read receiver. The magnetic storage media has at least one EDC configured to assist in writing to and/or reading from at least one of the plurality of storage locations in response to the wireless activation signal.

Disclosed herein are magnetic storage media with embedded disconnected circuits, and magnetic storage systems comprising such media. A magnetic storage media comprises a recording layer comprising a storage location, and an embedded disconnected circuit (EDC) configured to assist in at least one of writing to or reading from the storage location in response to a wireless activation signal. A magnetic storage system comprises a signal generator configured to generate a wireless activation signal, a magnetic storage media with a plurality of storage locations, and a write transducer and/or a read receiver. The magnetic storage media has at least one EDC configured to assist in writing to and/or reading from at least one of the plurality of storage locations in response to the wireless activation signal.

According to one embodiment, a disk device includes a plurality of disk-shaped recording media, a first actuator assembly supported by a support shaft, a second actuator assembly supported by the support shaft and spaced from the first actuator assembly, a flexible printed wiring board includes a base portion, a first relay portion extending from the base portion and connected to the first actuator assembly, and a second relay portion extending from the base portion and connected to the second actuator assembly, a support member fixed to the base portion of the flexible printed wiring board, and a reinforcing member provided in the base portion in the vicinity of the first relay portion and the second relay portion.

According to one embodiment, a disk device includes a plurality of disk-shaped recording media, a first actuator assembly supported by a support shaft, a second actuator assembly supported by the support shaft and spaced from the first actuator assembly, a flexible printed wiring board includes a base portion, a first relay portion extending from the base portion and connected to the first actuator assembly, and a second relay portion extending from the base portion and connected to the second actuator assembly, a support member fixed to the base portion of the flexible printed wiring board, and a reinforcing member provided in the base portion in the vicinity of the first relay portion and the second relay portion.

According to one embodiment, a head suspension assembly includes a support plate having a proximal end and a distal end, a wiring member on the support plate and including a metal plate and a wiring board laid on the metal plate, the metal plate including a first joined portion joined to the support plate close to the distal end and a second joined portion joined to the support plate and located on a proximal end side of the support plate, a head mounted on the wiring member, an extendable piezoelectric element mounted on the wiring member, and a damper including a viscoelastic layer and a constraint layer stacked on the viscoelastic layer and attached to the support plate to cover the first joined portion and the second joined portion.