Christopher Stephen 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:

7548523, Jun 16, 2009

Filed:

Jun 30, 2004

Appl. No.:

10/882522

Inventors:

Uppinder S. Babbar - San Diego CA, US
Phil J. Bostley - Boulder CO, US
Christopher L. Platt - Longmont CO, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04Q 7/00

US Classification:

370331, 370352, 455445, 4554321

Abstract:

Techniques for dynamically configuring IP and providing IP connectivity for a terminal equipment attached to a wireless device are described. The wireless device obtains from a wireless network a dynamically assigned IP address, an IP gateway's IP address, a subnet mask, or none or any combination thereof. Wireless device determines a host IP address (which may be the dynamically assigned IP address), a router IP address (which may be the gateway IP address or a spoofed IP address), a server IP address (which may be the router IP address), and a subnet mask (which may be obtained from the wireless network or spoofed by the wireless device). Wireless device, acting as a DHCP server, provides IP configuration for the terminal equipment, acting as a DHCP client. Wireless device thereafter forwards IP packets exchanged between the terminal equipment and wireless network and processes DHCP packets from the terminal equipment.

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.