Robert Hempstead

Person

Pittsburgh, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Epitaxial ferroelectric and magnetic recording structures including...
- Patent number 7,541,105
- Issue date Jun 2, 2009
- Seagate Technology LLC
- Thomas Francis Ambrose
- G11 - INFORMATION STORAGE
Information Patent Grant
Hard disk drive for perpendicular recording with transducer having...
- Patent number 7,095,585
- Issue date Aug 22, 2006
- Seagate Technology LLC
- Alexander P. Payne
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of and apparatus for defining disk tracks in magnetic record...
- Patent number 6,671,235
- Issue date Dec 30, 2003
- Ultratech Stepper, Inc.
- Andrew M. Hawryluk
- G11 - INFORMATION STORAGE
Information Patent Grant
Contact planar magnetoresistive head
- Patent number 6,535,361
- Issue date Mar 18, 2003
- Censtor Corp.
- William C. Cain
- G11 - INFORMATION STORAGE
Information Patent Grant
Planar magnetic ring head for contact recording with a rigid disk
- Patent number 6,493,191
- Issue date Dec 10, 2002
- Censtor Corporation
- William C. Cain
- G11 - INFORMATION STORAGE
Information Patent Grant
Hard disk drive having ring head with predominantly perpendicular m...
- Patent number 6,320,725
- Issue date Nov 20, 2001
- Censtor Corporation
- Alexander P. Payne
- G11 - INFORMATION STORAGE
Information Patent Grant
Hard disk drive with magnetoresistive head and perpendicular media
- Patent number 6,212,047
- Issue date Apr 3, 2001
- Censtor Corporation
- Alexander P. Payne
- G11 - INFORMATION STORAGE
Information Patent Grant
Contact planar magnetoresistive head
- Patent number 6,198,607
- Issue date Mar 6, 2001
- Censtor Corporation
- William C. Cain
- G11 - INFORMATION STORAGE
Information Patent Grant
Low friction sliding hard disk drive system
- Patent number 5,949,612
- Issue date Sep 7, 1999
- Censtor Corp.
- Christopher S. Gudeman
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Epitaxial ferroelectric and magnetic recording structures including...
- Publication number 20080075980
- Publication date Mar 27, 2008
- Seagate Technology LLC
- Thomas Francis Ambrose
- G11 - INFORMATION STORAGE
Information Patent Application
Hard disk drive for perpendicular recording with transducer having...
- Publication number 20050094315
- Publication date May 5, 2005
- Seagate Technology LLC, a Delaware corporation
- Alexander P. Payne
- G11 - INFORMATION STORAGE
Information Patent Application
Hard disk drive for perpendicular recording with transducer having...
- Publication number 20020093761
- Publication date Jul 18, 2002
- Alexander P. Payne
- G11 - INFORMATION STORAGE
Information Patent Application
Contact planar magnetoresistive head
- Publication number 20010055183
- Publication date Dec 27, 2001
- William C. Cain
- G11 - INFORMATION STORAGE

Robert Hempstead

Person

Patents Grantslast 30 patents

Epitaxial ferroelectric and magnetic recording structures including...

Hard disk drive for perpendicular recording with transducer having...

Method of and apparatus for defining disk tracks in magnetic record...

Contact planar magnetoresistive head

Planar magnetic ring head for contact recording with a rigid disk

Hard disk drive having ring head with predominantly perpendicular m...

Hard disk drive with magnetoresistive head and perpendicular media

Contact planar magnetoresistive head

Low friction sliding hard disk drive system

Patents Applicationslast 30 patents

Epitaxial ferroelectric and magnetic recording structures including...

Hard disk drive for perpendicular recording with transducer having...

Hard disk drive for perpendicular recording with transducer having...

Contact planar magnetoresistive head