David Wachenschwanz

Person

Saratoga, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
HAMR writer pole length characterization
- Patent number 9,183,859
- Issue date Nov 10, 2015
- Western Digital (Fremont), LLC
- Michael Alex
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive detecting different asperities on a disk using different...
- Patent number 8,902,533
- Issue date Dec 2, 2014
- Western Digital Technologies, Inc.
- Carl E. Barlow
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk lubricant management in data storage device
- Patent number 8,817,413
- Issue date Aug 26, 2014
- Western Digital Technologies, Inc.
- Bernard E. Knigge
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive calibrating bias signal for touchdown sensor
- Patent number 8,797,667
- Issue date Aug 5, 2014
- Western Digital Technologies, Inc.
- Carl E. Barlow
- G11 - INFORMATION STORAGE
Information Patent Grant
Patterns for pre-formatted information on magnetic hard disk media
- Patent number 7,944,643
- Issue date May 17, 2011
- WD Media, Inc.
- Wen Jiang
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording disk with a soft magnetic layer ha...
- Patent number 7,656,615
- Issue date Feb 2, 2010
- WD Media, Inc.
- David E. Wachenschwanz
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Perpendicular magnetic discrete track recording disk
- Patent number 7,608,193
- Issue date Oct 27, 2009
- WD Media, Inc.
- David E. Wachenschwanz
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of fabricating a magnetic discrete track recording disk
- Patent number 7,549,209
- Issue date Jun 23, 2009
- WD Media, Inc.
- David E. Wachenschwanz
- G11 - INFORMATION STORAGE
Information Patent Grant
Patterned medium and recording head
- Patent number 7,471,484
- Issue date Dec 30, 2008
- WD Media, Inc.
- David Wachenschwanz
- G11 - INFORMATION STORAGE
Information Patent Grant
Modulation of sidewalls of servo sectors of a magnetic disk and the...
- Patent number 7,161,753
- Issue date Jan 9, 2007
- Komag, Inc.
- David Wachenschwanz
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic discrete track recording disk
- Patent number 7,147,790
- Issue date Dec 12, 2006
- Komag, Inc.
- David E. Wachenschwanz
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Magnetic media with improved exchange coupling
- Patent number 7,070,870
- Issue date Jul 4, 2006
- Komag, Inc.
- Gerardo Bertero
- G11 - INFORMATION STORAGE
Information Patent Grant
Patterned medium and recording head
- Patent number 7,019,924
- Issue date Mar 28, 2006
- Komag, Incorporated
- Michael McNeil
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic media with improved exchange coupling
- Patent number 6,899,959
- Issue date May 31, 2005
- Komag, Inc.
- Gerardo Bertero
- G11 - INFORMATION STORAGE
Information Patent Grant
Soft magnetic film for perpendicular recording disk
- Patent number 6,893,748
- Issue date May 17, 2005
- Komag, Inc.
- Gerardo Bertero
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Perpendicular magnetic discrete track recording disk
- Publication number 20070041306
- Publication date Feb 22, 2007
- David E. Wachenschwanz
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Perpendicular magnetic discrete track recording disk
- Publication number 20070039922
- Publication date Feb 22, 2007
- David E. Wachenschwanz
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Modulation of sidewalls of servo sectors of a magnetic disk and the...
- Publication number 20060171051
- Publication date Aug 3, 2006
- David Wachenschwanz
- G11 - INFORMATION STORAGE
Information Patent Application
Patterned medium and recording head
- Publication number 20060139814
- Publication date Jun 29, 2006
- David Wachenschwanz
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic media with improved exchange coupling
- Publication number 20050129984
- Publication date Jun 16, 2005
- Gerardo Bertero
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic discrete track recording disk
- Publication number 20050120545
- Publication date Jun 9, 2005
- David E. Wachenschwanz
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic discrete track recording disk
- Publication number 20050036223
- Publication date Feb 17, 2005
- David E. Wachenschwanz
- G11 - INFORMATION STORAGE
Information Patent Application
SOFT MAGNETIC FILM FOR PERPENDICULAR RECORDING DISK
- Publication number 20050008902
- Publication date Jan 13, 2005
- Gerardo Bertero
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic discrete track recording disk
- Publication number 20040101713
- Publication date May 27, 2004
- David E. Wachenschwanz
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Patterned medium
- Publication number 20030179481
- Publication date Sep 25, 2003
- Michael McNeil
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic media with improved exchange coupling
- Publication number 20030152805
- Publication date Aug 14, 2003
- Komag, Inc.
- Gerardo Bertero
- G11 - INFORMATION STORAGE
Information Patent Application
Aluminum substrate disk having silica gel coating
- Publication number 20030022024
- Publication date Jan 30, 2003
- David Wachenschwanz
- G11 - INFORMATION STORAGE

David Wachenschwanz

Person

Patents Grantslast 30 patents

HAMR writer pole length characterization

Disk drive detecting different asperities on a disk using different...

Disk lubricant management in data storage device

Disk drive calibrating bias signal for touchdown sensor

Patterns for pre-formatted information on magnetic hard disk media

Perpendicular magnetic recording disk with a soft magnetic layer ha...

Perpendicular magnetic discrete track recording disk

Method of fabricating a magnetic discrete track recording disk

Patterned medium and recording head

Modulation of sidewalls of servo sectors of a magnetic disk and the...

Perpendicular magnetic discrete track recording disk

Magnetic media with improved exchange coupling

Patterned medium and recording head

Magnetic media with improved exchange coupling

Soft magnetic film for perpendicular recording disk

Patents Applicationslast 30 patents

Perpendicular magnetic discrete track recording disk

Perpendicular magnetic discrete track recording disk

Modulation of sidewalls of servo sectors of a magnetic disk and the...

Patterned medium and recording head

Magnetic media with improved exchange coupling

Magnetic discrete track recording disk

Magnetic discrete track recording disk

SOFT MAGNETIC FILM FOR PERPENDICULAR RECORDING DISK

Perpendicular magnetic discrete track recording disk

Patterned medium

Magnetic media with improved exchange coupling

Aluminum substrate disk having silica gel coating