Hanan Kupferman

Person

Diamond Bar, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Disk drive comprising preamble aligned zoned servo sectors
- Patent number 8,116,023
- Issue date Feb 14, 2012
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive estimating a servo zone after synchronously detecting a...
- Patent number 7,715,138
- Issue date May 11, 2010
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive subtracting low frequency disturbance from a servo burst...
- Patent number 7,619,841
- Issue date Nov 17, 2009
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Adjusting voltage delivered to disk drive circuitry based on a sele...
- Patent number 7,551,383
- Issue date Jun 23, 2009
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive and method having cost-effective storage of the disk dri...
- Patent number 7,440,214
- Issue date Oct 21, 2008
- Western Digital Technologies, Inc.
- Travis E. Ell
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotating media storage device having a calibration track with uniqu...
- Patent number 7,372,650
- Issue date May 13, 2008
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk in a disk drive and method having improved null servo...
- Patent number 7,333,290
- Issue date Feb 19, 2008
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive having adaptively-sized sectors to compensate for disk e...
- Patent number 7,215,496
- Issue date May 8, 2007
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Reducing the length of servo-wedges in a disk drive
- Patent number 7,116,505
- Issue date Oct 3, 2006
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drives and disk drive containing devices that include a servo...
- Patent number 7,075,746
- Issue date Jul 11, 2006
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive servo controller utilizing an extended servo header
- Patent number 7,057,836
- Issue date Jun 6, 2006
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive having one or more partial servo wedges that includes a...
- Patent number 7,046,465
- Issue date May 16, 2006
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive having a disk including a servo burst pattern in which a...
- Patent number 7,027,257
- Issue date Apr 11, 2006
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive having a disk including a servo burst pattern that impro...
- Patent number 7,023,637
- Issue date Apr 4, 2006
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo synchronization validation techniques based on both servo syn...
- Patent number 7,023,639
- Issue date Apr 4, 2006
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive having a disk including a servo burst pattern having a n...
- Patent number 6,980,389
- Issue date Dec 27, 2005
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Servo synchronization based on a servo synch mark that conflicts wi...
- Patent number 6,934,104
- Issue date Aug 23, 2005
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive comprising asynchronous/synchronous gain control for fau...
- Patent number 6,882,486
- Issue date Apr 19, 2005
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of simultaneously writing servo tracks on a hard disk drive
- Patent number 6,687,073
- Issue date Feb 3, 2004
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive employing separate read and write repeatable runout esti...
- Patent number 6,657,810
- Issue date Dec 2, 2003
- Western Digital Technologies, Inc.
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for RRO learning before and after shipping to...
- Patent number 6,545,835
- Issue date Apr 8, 2003
- Western Digital Technologies, Inc.
- Raffi Codilian
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of calibrating a write current-setting for servo writing a d...
- Patent number 6,525,892
- Issue date Feb 25, 2003
- Western Digital Technologies, Inc.
- Gary L. Dunbar
- G11 - INFORMATION STORAGE
Information Patent Grant
Headerless disk drive comprising repeatable runout (RRO) correction...
- Patent number 6,493,173
- Issue date Dec 10, 2002
- Western Digital Technologies, Inc.
- Yoo H. Kim
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive employing a non-volatile semiconductor memory for storin...
- Patent number 6,480,349
- Issue date Nov 12, 2002
- Western Digital Technologies, Inc.
- Yoo H. Kim
- G11 - INFORMATION STORAGE
Information Patent Grant
Constant velocity servo linearity calibration method for MR head
- Patent number 5,940,240
- Issue date Aug 17, 1999
- Western Digital Corporation
- Hanan Kupferman
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive power control circuit and method
- Patent number 5,412,809
- Issue date May 2, 1995
- Mitsumi Electric Co., Ltd.
- Karman Tam
- G06 - COMPUTING CALCULATING COUNTING

Hanan Kupferman

Person

Patents Grantslast 30 patents

Disk drive comprising preamble aligned zoned servo sectors

Disk drive estimating a servo zone after synchronously detecting a...

Disk drive subtracting low frequency disturbance from a servo burst...

Adjusting voltage delivered to disk drive circuitry based on a sele...

Disk drive and method having cost-effective storage of the disk dri...

Rotating media storage device having a calibration track with uniqu...

Magnetic disk in a disk drive and method having improved null servo...

Disk drive having adaptively-sized sectors to compensate for disk e...

Reducing the length of servo-wedges in a disk drive

Disk drives and disk drive containing devices that include a servo...

Disk drive servo controller utilizing an extended servo header

Disk drive having one or more partial servo wedges that includes a...

Disk drive having a disk including a servo burst pattern in which a...

Disk drive having a disk including a servo burst pattern that impro...

Servo synchronization validation techniques based on both servo syn...

Disk drive having a disk including a servo burst pattern having a n...

Servo synchronization based on a servo synch mark that conflicts wi...

Disk drive comprising asynchronous/synchronous gain control for fau...

Method of simultaneously writing servo tracks on a hard disk drive

Disk drive employing separate read and write repeatable runout esti...

Method and apparatus for RRO learning before and after shipping to...

Method of calibrating a write current-setting for servo writing a d...

Headerless disk drive comprising repeatable runout (RRO) correction...

Disk drive employing a non-volatile semiconductor memory for storin...

Constant velocity servo linearity calibration method for MR head

Disk drive power control circuit and method