Christopher L Platt

US Patent:

6740398, May 25, 2004

Filed:

Nov 9, 2001

Appl. No.:

10/008646

Inventors:

Christopher Loren Platt - Pittsburgh PA

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 565

US Classification:

428332, 428692, 428694 TS

Abstract:

Magnetic films comprising iridium, manganese and nitrogen (IrMnN) are disclosed. Multi-layer structures including ferromagnetic layers deposited on the IrMnN films are also disclosed. The IrMnN films have a (200) texture and may act as seed layers and/or exchange biasing layers for the ferromagnetic layers deposited thereon. The multi-layer structures are useful in applications such as read sensors for magnetic recording heads and soft magnetic underlayers for perpendicular magnetic recording media.

US Patent:

7035061, Apr 25, 2006

Filed:

Jun 18, 2003

Appl. No.:

10/464343

Inventors:

Eric W. Singleton - Maple Plain MN, US
David J. Larson - Northfield MN, US
Christopher L. Platt - Pittsburgh PA, US
Kurt W. Wierman - Pittsburgh PA, US
James K. Howard - Pittsburgh PA, US

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 5/39

US Classification:

36032412, 36032731

Abstract:

A transducing head includes a first bias element, a second bias element, and a magnetoresistive sensor positioned between the first bias element and the second bias element. The first bias element and the second bias element are each formed of a permanent magnet material having a remanent magnetic moment in a range of about 200 to about 800 emu/cm. In a preferred embodiment, the permanent magnet material is an alloy comprising iron, platinum, and at least one material selected from copper, silver, magnesium, lead, zinc, bismuth, and antimony.

US Patent:

8518563, Aug 27, 2013

Filed:

Feb 23, 2010

Appl. No.:

12/711148

Inventors:

Paul M. Jones - St. John VI, US
Xiaoping Yan - Wexford PA, US
Lei Li - Wexford PA, US
James Dillon Kiely - Edina MN, US
Christopher Loren Platt - Fremont CA, US
Michael J. Stirniman - Fremont CA, US
Jiping Yang - San Jose CA, US
Yiao-Tee Hsia - Pleasanton CA, US

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 5/66

US Classification:

4288333, 4288332

Abstract:

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.

US Patent:

20060105203, May 18, 2006

Filed:

Nov 15, 2004

Appl. No.:

10/989030

Inventors:

Lei Li - Pittsburgh PA, US
Christopher Platt - Pittsburgh PA, US
Yiao-Tee Hsia - Wexford PA, US

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 5/706
C23C 14/32
B05D 5/12
B05D 1/02
B05D 1/18

US Classification:

428833000, 428848100, 427127000, 204192100, 427256000, 427421100, 427430100

Abstract:

A recording medium for heat assisted magnetic recording includes a magnetic disc having a data zone portion and a non-data zone portion. A liquid lubricant is disposed on the non-data zone portion, and a solid lubricant disposed on the data zone portion. In one embodiment, the solid lubricant has a high thermal stability relative to the liquid lubricant.

US Patent:

20130128385, May 23, 2013

Filed:

May 21, 2012

Appl. No.:

13/476226

Inventors:

Brian William Karr - Savage MN, US
Joel William Hoehn - Hudson WI, US
Declan Macken - Prior Lake MN, US
Christopher Loren Platt - Fremont CA, US
Mei-Ling Wu - San Jose CA, US
Sarbeswar Sahoo - Shakopee MN, US
Michael Christopher Kautzky - Eagan MN, US

Assignee:

SEAGATE TECHNOLOGY LLC - Cupertino CA

International Classification:

G11B 5/127

US Classification:

360122

Abstract:

A device having an air bearing surface, the device including a writer portion having an air bearing surface at the air bearing surface of the device; and an overcoat layer disposed on at least a portion of the air bearing surface of the writer portion, wherein the overcoat includes a material having a magnetic moment of at least about 0.1 Tesla (T).

US Patent:

20130244059, Sep 19, 2013

Filed:

Mar 16, 2012

Appl. No.:

13/422868

Inventors:

Paul Max Jones - Palo Alto CA, US
Christopher Loren Platt - Fremont CA, US
Emil John Catoc Esmenda - Pleasanton CA, US
Lang Nhu Dinh - Sacramento CA, US
Junwei Huang - Fremont CA, US
James Dillon Kiely - Edina MN, US

Assignee:

SEAGATE TECHNOLOGY LLC - Cupertino CA

International Classification:

G11B 5/65
H05H 1/24

US Classification:

428835, 427577

Abstract:

A substrate having a carbon-deuterium protective overcoat layer, and method for making the same. In some embodiments, the substrate includes a recording structure having a magnetic recording layer. A protective overcoat layer is Formed on the recording structure, the protective overcoat layer composed of carbon-carbon (C—C) and carbon-deuterium (C—D) bonds and having no carbon-hydrogen (C—H) bonds.

US Patent:

20130337194, Dec 19, 2013

Filed:

Jul 24, 2013

Appl. No.:

13/949314

Inventors:

Xiaoping Yan - Wexford PA, US
Lei Li - Wexford PA, US
James Dillon Kiely - Edina MN, US
Christopher Loren Platt - Fremont CA, US
Michael J. Stirniman - Fremont CA, US
Jiping Yang - San Jose CA, US
Yiao-Tee Hsia - Pleasanton CA, US

Assignee:

SEAGATE TECHNOLOGY LLC - Cupertino CA

International Classification:

G11B 5/84

US Classification:

427575, 427569

Abstract:

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.

US Patent:

20170365448, Dec 21, 2017

Filed:

Nov 20, 2015

Appl. No.:

15/533265

Inventors:

- Cupertino CA, US
ZhaoHui Fan - Fremont CA, US
Samuel Tanaka - Fremont CA, US
Christopher Platt - Fremont CA, US
Xiaoding Ma - Fremont CA, US

International Classification:

H01J 37/32
C23C 16/26
C23C 16/50

Abstract:

A vapor deposition source that includes a substantially vertical plate to which first and second filament posts are coupled. The vapor deposition source also includes a filament having a first end and a second end. The filament provides a substantially concentric source of electrons. The first end of the filament is connected to the first filament post and the second end of the filament is connected to the second filament post. The first end of the filament is substantially vertically aligned with the second end of the filament when the filament is connected to the first and second posts.