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Western Digital fremont Llc patents


Recent patent applications related to Western Digital fremont Llc. Western Digital fremont Llc is listed as an Agent/Assignee. Note: Western Digital fremont Llc may have other listings under different names/spellings. We're not affiliated with Western Digital fremont Llc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "W" | Western Digital fremont Llc-related inventors


Magnetic reader having a nonmagnetic insertion layer for the pinning layer

A method and system provide a magnetic read apparatus. The magnetic read apparatus includes a read sensor. The read sensor includes a pinning layer, a nonmagnetic insertion layer and a pinned layer. The nonmagnetic insertion layer has a location selected from a first location and a second location. The first... Western Digital fremont Llc

Magnetic recording write apparatus having a stepped conformal trailing shield

A magnetic write apparatus has a media-facing surface (MFS), a pole having leading and trailing surfaces, a trailing shield having a pole-facing surface, a write gap and coil(s). The pole's trailing surface has a portion adjoining the MFS and oriented at a nonzero, acute bevel angle from a direction perpendicular... Western Digital fremont Llc

Heat assisted magnetic recording write apparatus having an inverse tapered waveguide

A heat assisted magnetic recording (HAMR) write apparatus has a media-facing surface (MFS) and includes a pole, coil(s) and a waveguide. The waveguide is optically coupled with a laser and directs energy toward the MFS. The waveguide includes an entrance, a bottom and a mode converter having a core, an... Western Digital fremont Llc

Method for providing heat assisted magnetic recording write apparatus having a near-field transducer with a sloped nose

A method for fabricating a near-field transducer (NFT) for a heat assisted magnetic recording (HAMR) write apparatus is described. The HAMR write apparatus is coupled with a laser for providing energy and has a media-facing surface (MFS) configured to reside in proximity to a media during use. The method includes... Western Digital fremont Llc

Magnetic writer having convex trailing surface pole and conformal write gap

A magnetic write apparatus has a media-facing surface (MFS), a pole, a write gap, a top shield and coil(s). The pole includes a yoke and a pole tip. The pole tip includes a bottom, a top wider than the bottom and first and second sides. The pole tip has a... Western Digital fremont Llc

Method for afc shields for multiple sensor magnetic transducers and magnetic transducers having multiple sensors and afc shields

A method and system provide a magnetic transducer having an air-bearing surface (ABS). The method includes providing a first shield, a first read sensor, an antiferromagnetically coupled (AFC) shield that includes an antiferromagnet, a second read sensor and a second shield. The read sensors are between the first and second... Western Digital fremont Llc

Magnetic recording write apparatus having a pole having an aspect ratio greater than one and an auxiliary pole

A magnetic write apparatus has a media-facing surface (MFS) and includes an auxiliary pole, coil(s) and a main pole having a pole tip and a yoke. The pole tip occupies part of the MFS. The yoke has a yoke length measured from the MFS in a yoke direction perpendicular to... Western Digital fremont Llc

Stripe height lapping control structures for a multiple sensor array

A method and system provide a storage device. A plurality of read sensor stacks for each reader of the storage device are provided. The read sensor stacks are distributed along a down track direction and offset in a cross-track direction. A plurality of electronic lapping guides (ELGs) are provided for... Western Digital fremont Llc

Free layer magnetic reader that may have a reduced shield-to-shield spacing

A magnetic read apparatus includes a read sensor, a shield structure and a side magnetic bias structure. The read sensor includes a free layer having a side and a nonmagnetic spacer layer. The shield structure includes a shield pinning structure and a shield reference structure. The nonmagnetic spacer layer is... Western Digital fremont Llc

Heat assisted magnetic recording writer having integrated polarization rotation waveguides

A heat assisted magnetic recording (HAMR) writer is described. The HAMR writer is coupled with a laser that provides energy having a first polarization state. The HAMR writer has an air-bearing surface (ABS) configured to reside in proximity to a media during use, a plurality of waveguides, a main pole... Western Digital fremont Llc

Shingle magnetic writer having nonconformal shields

A shingle magnetic write apparatus is described. The shingle magnetic write apparatus includes a pole, a side gap, a write gap, a top shield and side shield(s). The pole has a pole tip region including a top wider than a bottom, and sides. The sides are at a sidewall angle... Western Digital fremont Llc

Free-standing reflector usable in heat assisted magnetic recording technology

A heat assisted magnetic recording (HAMR) write apparatus is described. The HAMR write apparatus is coupled with a laser that provides energy. The HAMR writer has a media-facing surface (MFS) and a laser-facing surface. The HAMR write apparatus includes a free-standing reflector and at least one waveguide. The free-standing reflector... Western Digital fremont Llc








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