Seagate Technology Incorporated

Michael Joseph Stirniman

Jing Gui

Jianwei Liu

Xiaoding Ma

Samuel John Falcone

Huan H Tang

Li-Ping Wang

Raj Thangaraj

Paul Stephen McLeod

JiPing Yang

Paul Max Jones

Erol Girt

Mariana Rodica Munteanu

Lei Li

Qian Guo

XiaoPing Yan

Xiaoping Yan

Thomas P Nolan

Timothy John Klemmer

Martin Giles Blaber

James Dillon Kiely

Florin Zavaliche

Yang Yang

Yiao-Tee Hsia

Ruoxi Yang

Zhaohui Fan

Gary Clark Rauch

Christopher Loren Platt

Fujian Huang

Hongbo Wang

Haun Tang

Emir R Kazazic

Kyoumarss Damavandi

John Stanislaus Bujak

Wenhong Liu

Rajiv Yadav Ranjan

Bruno Jean Marchon

Samuel Dacke Harkness, Iv

David Shiao-Min Kuo

Wen Hong Liu

Chung-hee Chang

Jeffrey Shane Reiter

Kevin John Grannen

Thomas Roy Pitchford

Yuh-Jen Cheng

Emil John C Esmenda

Kueir Weei Chour

Emil John Catoc Esmenda

Mark Smura

Hamid Riahi Samani

Li-Peng Wang

Dan Castro

Li-Pang Wang

Seog W Lee

An apparatus including a heat sink layer and a magnetic recording layer over the heat sink layer. In addition, a thermochromic layer is over the heat sink layer, wherein the thermochromic layer includes a first optical absorbance at a first temperature and a second optical absorbance at a second temperature.

Apparatuses and methods for absorbing optical energy

Provided herein is an apparatus including a substrate and a magnetic recording layer over the substrate. In addition, a thermochromic layer is over the substrate, wherein the thermochromic layer includes a first optical absorbance at a first temperature and a second optical absorbance at a second temperature.

A magnetic data storage medium may include a substrate, a magnetic recording layer, a protective carbon overcoat, and a monolayer covalently bound to carbon atoms adjacent a surface of the protective carbon overcoat. According to this aspect of the disclosure, the monolayer comprises at least one of hydrogen, fluorine, nitrogen, oxygen, and a fluoro-organic molecule. In some embodiments, a surface of a read and recording head may also include a monolayer covalently bound to carbon atoms of a protective carbon overcoat.

Covalently bound monolayer for a protective carbon overcoat

Disclosed herein are compounds of formula I:X-(L-Z)-L-R[L-(Z-L)-Y]&#x2003;&#x2003;(I)wherein L is a perfluoropolyether;R is q can be an integer equal to or greater than 1;p can independently be integers from 0 to 7;X and Y can independently be chosen from: &#x2014;OH, &#x2014;CHCHOH, CHCHOCHCHOH, &#x2014;CHCH(OH)CHOH, &#x2014;CH, &#x2014;CHCH, &#x2014;CHCH(OH)CH, F, &#x2014;CF, &#x2014;CFCF, piperonyl, triazine, benzotriazole, and derivatives thereof; andZ, if present, can independently be chosen from: &#x2014;CH&#x2014;, &#x2014;CHCHCH&#x2014;, &#x2014;CHCH(OH)CH&#x2014;, &#x2014;CHCH(OH)CHCH(OH)CH&#x2014;, &#x2014;CH(OH)CH(OH)CH&#x2014;, &#x2014;CH(CHOH)&#x2014;, or &#x2014;CH(CH)&#x2014;.

Lubricants for data storage

An apparatus for collecting condensed vapor during physical vapor deposition includes an enclosure configured to be placed adjacent to one or more vapor sources in a vacuum chamber. The enclosure includes an internal surface of the enclosure partially enclosing a volume of space configured to receive an object wherein the enclosure is maintained at a cooler temperature than the one or more vapor sources. The internal surface of the enclosure is coupled to one or more drainage gutters drainage drainage gutters.

Vapor collection

Compositions for use in lubricating thin film storage media are provided, as well as storage media formed using the compositions, the compositions including one or more central cores having a cyclic group, and a plurality of arms extending from the central cores, wherein each arm comprises phenol or piperonyl. Methods of preparing the compositions are also provided. Methods of preparing storage media that incorporate the compositions therein are further provided.

Lubricant for heat assisted magnetic recording

Apparatus and method for vapor deposition of a uniform thickness thin film of lubricant on at least one surface of a disk-shaped substrate. The invention has particular utility in depositing thin films of polymeric lubricants onto disc-shaped substrates in the manufacture of magnetic and MO recording media.

Single disc vapor lubrication

Compositions including one or more a central cores having a cyclic group, and a plurality of arms extending from the central cores, wherein the arms comprise perfluoropolyethers (PFPEs) or its derivatives. Methods of preparing the compositions are also provided. Methods of preparing storage media that incorporate the compositions therein are further provided.

Lubricant compositions

A system and method for corrosion problems in magnetic media resulting from moisture penetrating through the carbon layer into the magnetic layer by diffusion or other methods are overcome by processing the carbon overcoat to stop and/or inhibit the moisture penetration. The process involves removing moisture channels from protective overcoats of thin film magnetic media by irradiating the protective overcoat with ultraviolet (UV) radiation in an inert hydrophobic chemical environment. Afterwards, the thin film magnetic media can be removed into ambient atmosphere where it is coated with a lubricant.

System and method for depositing a lubricant material on a hydrophobic surface

A compound comprising a backbone with a perfluoropolyether chain. The compound also has one or more cyclophosphazene rings attached to or incorporated into the backbone. The compound further includes at least two functional groups attached to the backbone, attached to the one or more cyclophosphazene rings, or a combination thereof.

Low profile lubricant with cyclophosphazene ring attached

Disclosed herein are methods that include inserting a magnetic media into an enclosure and using a non-thermal physical vapor deposition process to deposit a lubricant onto the magnetic media within the enclosure. Also disclosed are methods that include loading a magnetic media that includes a tribological coating into an enclosure and using an electrospray ionization process to deposit a lubricant onto the magnetic media within a vacuum created by the enclosure.

Deposition of lubricant onto magnetic media

A perpendicular magnetic recording medium having a substrate, a Cr-doped Fe-alloy-containing underlayer containing about 8 to 18 at % Cr and a perpendicular recording magnetic layer, and a process for improving corrosion resistance of the recording medium and for manufacturing the recording medium are disclosed.

Perpendicular media with Cr-doped Fe-alloy containing soft underlayer (SUL)

Perpendicular media with Cr-doped Fe-alloy-containing soft underlayer (SUL)

Growing community of inventors

Fremont, CA, United States of America

Michael Joseph Stirniman