Inventor
Michael Alex
Inventor
Fremont, CA, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer82%
C23CCoating metallic material5%
G06FElectric digital data processing5%
G06NComputing arrangements based on specific computational models5%
H04LTransmission of digital information, e.g. telegraphic communication5%
PatentTitleYear
11,080,621Machine learning-based read channel data detection20219,183,859'HAMR writer pole length characterization'20159,183,867'Systems and methods for forming implanted capping layers in magnetic media for magnetic recording'20159,171,575'Data storage device detecting media defects by writing opposite polarity test pattern'20159,001,630'Energy assisted magnetic recording medium capable of suppressing high DC readback noise'20158,897,103'Disk drive calibrating a laser write power for heat assisted magnetic recording'20148,773,957'Disk drive destabilizing magnetization of test pattern using head laser to enhance defect detection'20148,743,666'Energy assisted magnetic recording medium capable of suppressing high DC readback noise'20148,446,690'Perpendicular magnetic recording write head with spin torque oscillator for fast switching of write pole magnetization'20138,189,281'Magnetic recording disk drive with write driver to write head transmission line having non-uniform sections for optimal write current pulse overshoot'20128,116,031'Perpendicular magnetic recording system with helical write coil and auxiliary coil for fast switching of write pole magnetization'20128,116,021'Synchronized rewriting of data'20127,787,201'Method and apparatus for controlling fly-height of a perpendicular-magnetic-recording head in a hard disk drive'20107,633,694'Method and apparatus for quantifying stress and damage in magnetic heads'20097,196,860'Circuit and method for refreshing data recorded at a density sufficiently high to undergo thermal degradation'20076,628,466'Circuit and method for refreshing data recorded at a density sufficiently high to undergo thermal degradation'20036,429,984'Circuit and method for refreshing data recorded at a density sufficiently high to undergo thermal degradation'20025,616,218'Modification and selection of the magnetic properties of magnetic recording media through selective control of the crystal texture of the recording layer'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997Based in Milpitas, CA, US· patent location history
2002–2007Patents assigned to KOMAG INC (3)· patent assignee history
2002–2015Based in Fremont, CA, US· patent location history
2009Based in Freemont, CA, US· patent location history
2012–2014Patents assigned to ALEX MICHAEL (6)· patent assignee history
2012–2013Patents assigned to CONTRERAS JOHN THOMAS (3)· patent assignee history
2012Patents assigned to HITACHI GLOBAL STORAGE TECH NL (3)· patent assignee history
2014–2021Patents assigned to WESTERN DIGITAL TECH INC (6)· patent assignee history
2021Based in San Jose, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ALEX MICHAELself | 6 | 2012–2014 |
| WESTERN DIGITAL TECH INC | 6 | 2014–2021 |
| CONTRERAS JOHN THOMAS | 3 | 2012–2013 |
| HITACHI GLOBAL STORAGE TECH NL | 3 | 2012 |
| KOMAG INC | 3 | 2002–2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fremont, California, US | 15 | 2002–2015 |
| San Jose, California, US | 1 | 2021 |
| Freemont, California, US | 1 | 2009 |
| Milpitas, California, US | 1 | 1997 |