Edwin A Rejda

US Patent:

8259540, Sep 4, 2012

Filed:

Jan 16, 2012

Appl. No.:

13/350943

Inventors:

Sarbeswar Sahoo - Shakopee MN, US
Edwin Rejda - Bloomington MN, US
Ibro Tabakovic - Edina MN, US
Steven Carl Riemer - Minneapolis MN, US
Michael Christopher Kautzky - Eagan MN, US

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 11/00

US Classification:

369 1333, 360 59, 3602351

Abstract:

A magnetic device that includes a write pole having a write pole tip; a read pole having a read pole tip; an optical near field transducer; and a contact pad. The contact pad includes NiX, wherein X is chosen from Ru, Re, Zr, Cr, and Cu; and a is the atomic percent of the element X, and can range from about 20 to about 90. The optical near field transducer is positioned between the read pole and the write pole and the contact pad is positioned adjacent the write pole opposite the optical near field transducer.

US Patent:

8477572, Jul 2, 2013

Filed:

Aug 28, 2012

Appl. No.:

13/596129

Inventors:

Sarbeswar Sahoo - Shakopee MN, US
Edwin Rejda - Bloomington MN, US
Ibro Tabakovic - Edina MN, US
Steven Carl Riemer - Minneapolis MN, US
Michael Christopher Kautzky - Eagan MN, US

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 11/00

US Classification:

369 1333, 3602351, 360 59

Abstract:

A magnetic device that includes a write pole having a write pole tip; a read pole having a read pole tip; an optical near field transducer; and a contact pad. The contact pad includes NiX, wherein X is chosen from Ru, Re, Zr, Cr, and Cu; and a is the atomic percent of the element X, and can range from about 20 to about 90. The optical near field transducer is positioned between the read pole and the write pole and the contact pad is positioned adjacent the write pole opposite the optical near field transducer.

US Patent:

8582242, Nov 12, 2013

Filed:

Sep 29, 2011

Appl. No.:

13/248352

Inventors:

Paul Julio Sonda - Minneapolis MN, US
Edwin Frank Rejda - Bloomington MN, US
Declan Macken - Prior Lake MN, US

Assignee:

Seagate Technology LLC - Cupertino CA

International Classification:

G11B 5/147
G11B 5/187
G11B 5/40
G11B 5/60

US Classification:

3602351, 3601253, 36012571, 36012573

Abstract:

A magnetic head that includes: a slider having a leading edge and a trailing edge; and a transducer, the transducer formed on the trailing edge of the slider and the transducer including: a substrate; a basecoat positioned adjacent the substrate, wherein the basecoat includes a material having a Young's modulus that is less than that of alumina and a coefficient of thermal expansion that is less than that of alumina; a reader; a writer; a heater; and an overcoat encasing at least a portion of the transducer, wherein the overcoat includes a material having a Young's modulus that is less than that of alumina and a coefficient of thermal expansion that is less than that of alumina.

US Patent:

20020057537, May 16, 2002

Filed:

Aug 15, 2001

Appl. No.:

09/930741

Inventors:

Edwin Rejda - Bloomington MN, US
Joel Hoehn - Hudson WI, US
Shanlin Hao - Eden Prairie MN, US
Lance Stover - Eden Prairie MN, US
Todd Luse - Delano MN, US
James Peterson - Eden Prairie MN, US

Assignee:

Seagate Technology LLC

International Classification:

G11B005/33
G11B005/127

US Classification:

360/313000

Abstract:

A method for producing magneto resistive heads includes the steps of positioning at least two magneto resistive elements in spaced relation to one another and placing the at least two magneto resistive elements in an ion milling environment where material is removed nonselectively from items in the environment. A property of at least two of the plurality of magneto resistive elements is monitored. In response to monitoring, one of the at least two magneto resistive elements is dynamically covered to prevent additional removal of material from the covered magneto resistive element.

US Patent:

20080253021, Oct 16, 2008

Filed:

Apr 12, 2007

Appl. No.:

11/700474

Inventors:

Ladislav R. Pust - Savage MN, US
Lars H. Ahlen - Bloomington MN, US
Edwin F. Rejda - Bloomington MN, US
David C. Seets - Shorewood MN, US
Lance E. Stover - Eden Prairie MN, US
Dian Song - Eden Prairie MN, US
Feng Y. Wang - Eden Prairie MN, US

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 5/187
G11B 5/127
G11B 5/33

US Classification:

360122, 428814

Abstract:

A transducer having an external contact surface includes a writer and a contact member. The writer has a portion extendable beyond the external contact surface. The contact member surrounds at least a portion of the extendable writer portion.

US Patent:

20110026158, Feb 3, 2011

Filed:

Jul 29, 2009

Appl. No.:

12/511636

Inventors:

Edwin Frank Rejda - Bloomington MN, US
Huaqing Yin - Eden Prairie MN, US
Marc Perry Ronshaugen - Eden Prairie MN, US

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 21/02

US Classification:

360 75, G9B 21003

Abstract:

Recording heads for data storage systems are provided. Recording heads illustratively include a write pole, a bumper, a dielectric layer, and a surface. In some embodiments, a portion of the surface includes portions of the write pole, bumper, and dielectric layer. The write pole, bumper, and dielectric layer are illustratively made from materials that have polishing rates. In some embodiments, the polishing rate for the write pole material is more similar to the polishing rate for the bumper material than it is to the polishing rate for the dielectric layer material.

US Patent:

20130000107, Jan 3, 2013

Filed:

Jun 29, 2012

Appl. No.:

13/537382

Inventors:

Ladislav R. Pust - Savage MN, US
Lars H. Ahlen - Bloomington MN, US
Edwin F. Rejda - Bloomington MN, US
David C. Seets - Shorewood MN, US
Lance E. Stover - Eden Prairie MN, US
Dian Song - Eden Prairie MN, US
Feng Y. Wang - Eden Prairie MN, US

Assignee:

SEAGATE TECHNOLOGY LLC - Cupertino CA

International Classification:

G11B 5/127

US Classification:

2960307

Abstract:

A transducer having an external contact surface includes a writer and a contact member. The writer has a portion extendable relative to an adjacent portion of the external contact surface. The contact member surrounds at least a portion of the extendable writer portion and is spaced from the extendable writer portion. The coefficient of thermal expansion of the contact member is approximately equal to the coefficient of thermal expansion of the extendable writer portion.

US Patent:

20130164453, Jun 27, 2013

Filed:

Apr 5, 2012

Appl. No.:

13/440068

Inventors:

Philip George Pitcher - Shakopee MN, US
Edwin Frank Rejda - Bloomington MN, US
Richard Thomas Greenlee - Hastings MN, US

Assignee:

SEAGATE TECHNOLOGY LLC - Cupertino CA

International Classification:

C23C 14/48

US Classification:

427523

Abstract:

A method of forming a layer, the method including providing a substrate having at least one surface adapted for forming a layer thereon; directing a particle beam towards the surface of the substrate, the particle beam including particles, wherein the particle beam has an angle of incidence with respect to the substrate, and is configured so that the particles have implant energies that are not greater than about 100 eV; changing the angle of incidence of the particle beam, the implant energy of the particles, or a combination thereof; and directing the particle beam towards the surface of the substrate a subsequent time, wherein the particles of the particle beam form a layer on the substrate.