Hitachi Global Storage Technologies Netherlands B.v.

Western Digital Technologies, Inc.

Hgst Netherlands, B.v.

Hitachi Global Storage Technologies Japan, Ltd.

Hitachi, Ltd.

Nidec Corporation

West Digital Technologies, Inc.

Takako Hayakawa

Kouki Uefune

Kimihiko Sudo

Takashi Kouno

Yuta Onobu

Kazuhide Ichikawa

Yuichi Arai

Yoshiyuki Hirono

Akihiko Aoyagi

Toshio Takahashi

Nobumasa Nishiyama

Hitoshi Shindo

Kazuhiro Nagaoka

Teruhiro Nakamiya

Seong-Hun Choe

Yuji Soga

Takehito Nagata

Masaru Muranishi

Noritaka Otake

Shigeo Nakamura

Kyo Akagi

Shozo Saegusa

Takashi Yamaguchi

Kenji Suzuki

Tomohiro Yoneda

Hideaki Maeda

Hiromitsu Masuda

Yuji Fujita

Marutomo Goto

Masahiro Akagi

Takeshi Ohiro

Miki Namihisa

Osamu Beppu

Takayuki Ishino

Jiro Kaneko

Akihiro Yudate

Hajime Eguchi

Kazushi Tsuwako

Sho Nakamura

Masamichi Sakauchi

Hitoshi Tamura

Kyosuke Yoshida

Kouki Uefume

Kazuki Takeichi

The present disclosure generally relates to a voice coil motor (VCM) yoke assembly mounted to an actuator block for a data storage device. One or more fastening mechanisms couple the VCM assembly to the actuator block. The fastening mechanisms are coupled to the VCM assembly by one or more soft mounts. The one or more soft mounts reduce undesirable movement of the magnetic recording head by spacing the VCM assembly from the actuator block, yet still ensuring the VCM assembly is properly coupled to the actuator block.

Soft mount voice coil motor assembly

The present disclosure generally relates to a tape embedded drive having the spindles upon which the tape reels are disposed, fixedly coupled at both the bottom and the top to ensure stability of the reels. Furthermore, an additional cover over the spindle can be used to secure the top coupling mechanism and the spindle to the tape embedded drive enclosure to provide additional stability. A sealing cover is then placed over the additional cover to tightly seal the enclosure.

Tape embedded drive with tied spindle structure

Disclosed here is a magnet for use in a motor. The magnet comprises a magnet body. The magnet body comprises a plurality of coated magnetic granules. Each coated magnetic granule of the plurality of coated magnetic granules comprises a magnetic granule and a metallic layer coating the magnetic granule.

Magnet for motor of magnetic storage device

Approaches to patching a leaky hermetically-sealed device include the use of a laminate rework patch that includes an adhesive tape layer, an aluminum sheet layer, and an outer cover layer, and whereby a viscous adhesive is injected or otherwise applied between the patch and the device leak location, over a layer of primer material, to fill the leak and stop the leakage of gas from inside the device. The thickness of the viscous adhesive, and thus the curing time and temperature of the viscous adhesive, can be managed by way of the thickness of the adhesive tape layer.

Sealed electronic component rework patch

Embodiments disclosed herein generally relate to hermetic electrical connectors used in hard disk drives. The hermetic electrical connector includes a barrier structure having a first plurality of connecting pads disposed on a first surface of the barrier structure and a second plurality of connecting pads disposed on a second surface of the barrier structure opposite the first surface. A plurality of conductors is disposed within the barrier structure, and each conductor is coupled to a connecting pad of the first plurality of connecting pads and a corresponding connecting pad of the second plurality of connecting pads. The barrier structure further includes a dielectric material between the first and second surfaces, and one or more layers embedded in the dielectric material. The addition of the layers helps choke the helium gas flow, thus improving sealing of the electrical connector while maintaining high-speed electrical transmission.

Hermetic sealed electrical connector with high-speed transmission for hard disk drive

A base member includes a recessed portion extending in radial directions and recessed upward from a lower surface of the base member, and a hole extending through the recessed portion in the vertical direction. The recessed portion includes a recessed portion loop-shaped surface defining a loop-shaped surface in the radial direction. A connector is located on a lower side of the recessed portion to cover the hole portion. An adhesive is located between the connector and the recessed portion. A minimum value of a gap distance in the radial direction between an outer end of the connector and an inner end of the recessed portion in which the outer end of the connector and the inner end of the recessed portion are opposed to each other with the adhesive therebetween is greater than a minimum value of a gap in the vertical direction distance between an upper surface of the connector and the recessed portion loop-shaped surface, in which the upper surface of the connector and the recessed portion loop-shaped surface are opposed to each other with the adhesive therebetween. The adhesive includes a filler.

Base unit and disk drive apparatus

A misalignment-tolerant flexible type electrical feed-through assembly, which is able to tolerate connector misalignment, involves a flexible circuit assembly (FCA) part constructed as a laminate structure of a base insulating layer, a conductor layer, and a cover insulating layer, where the FCA part is wrapped around a plurality of metal parts, where the metal parts are slidable relative to each other. Such a feed-through assembly may be used at an interface between a hermetically-sealed internal environment, such as in a lighter-than-air gas filled data storage device, and the external environment.

Misalignment-tolerant flexible type electrical feed-through

An electrical feed-through assembly includes electrically conductive pins having a top apex and a bottom apex, where the pins extend through at least a majority of an electrically non-conductive material. The top apexes, the bottom apexes, or both the top and bottom apexes of the pins have an electrically conductive connection pad material, such as a solder pad, coupled thereto. In variations, the top and/or bottom apexes may be slightly recessed from a corresponding surface of the non-conductive material, such that the connection pads fill the respective recesses; and/or the top and/or bottom apexes barely extend from a corresponding surface, such that the connection pads bulge out from the corresponding surface. Such a feed-through configuration may inhibit pin bending, in addition to enabling use of more types of connectors beyond pin-and-socket type connectors.

Electrical feed-through and connector configuration

Hermetic sealing with high-speed transmission for hard disk drive

A hermetically-sealed hard disk drive (HDD) utilizes a laminated film seal to seal an interface of an electrical feed-through connector and an HDD enclosure base. The laminated film seal may be constructed of a heat sealant layer that bonds with a surface of the base and a surface of the electrical connector, a barrier layer which inhibits gas from escaping from inside the HDD, and a film surface protective layer which protects the heat sealant and barrier layers. Embodiments may include a heat sealant layer comprising a thermoplastic polymer such as polypropylene, a barrier layer comprising a metal such as aluminum, and a film surface protective layer comprising a thermoplastic polymer such as polyethylene terephthalate.

Hermetic sealing of hard disk drive using laminated film seal

A hermetically-sealed hard disk drive (HDD) utilizes a laminated film seal to seal an HDD cover-to-base interface. The laminated film seal may be constructed of a heat sealant layer hermetically-coupled to and forming a seal with the base, a barrier layer which inhibits gas from escaping from inside the HDD, and a film surface protective layer which protects the heat sealant and barrier layers. Embodiments may include a heat sealant layer comprising a thermoplastic polymer such as polypropylene, a barrier layer comprising a metal such as aluminum, and a film surface protective layer comprising a thermoplastic polymer such as polyethylene terephthalate.

A hermetically-sealed hard disk drive (HDD) utilizes a laminated film seal to seal an interface of an electrical flexible cable assembly and an HDD enclosure base. The laminated film seal may be constructed of a heat sealant layer that bonds with a surface of the base and a surface of the flex cable, a barrier layer which inhibits gas from escaping from inside the HDD, and a film surface protective layer which protects the heat sealant and barrier layers. Embodiments may include a heat sealant layer comprising a thermoplastic polymer such as polypropylene, a barrier layer comprising a metal such as aluminum, and a film surface protective layer comprising a thermoplastic polymer such as polyethylene terephthalate.

A hermetically-sealed hard disk drive (HDD) utilizes a laminated film enclosure to hermetically seal an HDD within. The laminated film enclosure may be constructed of a heat sealant layer hermetically-sealed around the HDD, a barrier layer which inhibits gas from escaping from inside the laminated film enclosure, and a film surface protective layer which protects the heat sealant and barrier layers. Embodiments may include a heat sealant layer comprising a thermoplastic polymer such as polypropylene, a barrier layer comprising a metal such as aluminum, and a film surface protective layer comprising a thermoplastic polymer such as polyethylene terephthalate.

Laminated film-packed hard disk drive for hermetic sealing

A hard disk drive including a plurality of magnetic disks and a voice coil motor. The voice coil motor includes a coil and a first damper plate for dampening vibrations generated by the coil. The first damper plate is disposed within the voice coil motor.

Low profile damper plates for a yoke of a voice coil motor

Growing community of inventors

Kanagawa, Japan

Takako Hayakawa