Inventor
James Terrence Olson
Inventor
Santa Cruz, CA, US
Overview
Patents· 20 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 transducer75%
B82YSpecific uses or applications of nanostructures4%
G01NInvestigating or analysing materials by determining their chemical or physical properties4%
G01RMeasuring electric variables4%
G06FElectric digital data processing4%
H04LTransmission of digital information, e.g. telegraphic communication4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
PatentTitleYear
11,011,190Magnetic write head with write-field enhancement structure including a magnetic notch202110,997,990Spin torque layer in side gap for improved field and cross track field gradient202110,811,039Magnetic write head for providing spin-torque-assisted write field enhancement202010,706,877Spin torque layer in side gap for improved field and cross track field gradient202010,546,603Magnetic write head for providing spin-torque-assisted write field enhancement202010,366,714Magnetic write head for providing spin-torque-assisted write field enhancement20198,792,210'Asymmetric writer for shingled magnetic recording'20148,310,786'Asymmetric writer for shingled magnetic recording'20128,208,228'Current-perpendicular-to-the-plane (CPP) magnetoresistive read head with multiple sensing elements for patterned-media'20128,094,403'Correcting errors in position of an HDD write-head'20127,894,159'Perpendicular write head with independent trailing shield designs'20117,791,839'Thermally-assisted perpendicular magnetic recording system with write pole surrounding an optical channel and having recessed pole tip'20107,768,729'Method, system, and computer program product for estimating adjacent track erasure risk by determining erase band width growth rates'20107,732,071'Perpendicular magnetic recording system with patterned medium and manufacturing process for the medium'20107,652,954'Thermally assisted recording head with magnetic pole integrated into optical aperture for dual gradient recording'20107,538,961'Using inductance to measure writer spacing in perpendicular magnetic recording'20097,532,432'Perpendicular magnetic recording system with medium having thin soft underlayer and recording head having thick-throat trailing shield'20097,469,274'System and method for identifying third party copy devices'20087,203,607'System and method for determining intergranular exchange in perpendicular recording media'20075,311,290'Imaging apparatus and method of fiber analysis'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994Based in Vancouver, CA· patent location history
2007–2010Patents assigned to HITACHI GLOBAL STORAGE TECH (7)· patent assignee history
2007–2021Based in Santa Cruz, CA, US· patent location history
2008Based in Fridley, MN, US· patent location history
2011–2012Patents assigned to HITACHI GLOBAL STORAGE TECH NL (4)· patent assignee history
2012–2014Patents assigned to DE LA FUENTE ANTON R (2)· patent assignee history
2012–2014Patents assigned to MOCHIZUKI MASAFUMI (2)· patent assignee history
2019–2021Patents assigned to WESTERN DIGITAL TECH INC (6)· patent assignee history
2020–2021Based in San Jose, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI GLOBAL STORAGE TECH | 7 | 2007–2010 |
| WESTERN DIGITAL TECH INC | 6 | 2019–2021 |
| HITACHI GLOBAL STORAGE TECH NL | 4 | 2011–2012 |
| DE LA FUENTE ANTON R | 2 | 2012–2014 |
| MOCHIZUKI MASAFUMI | 2 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Santa Cruz, California, US | 16 | 2007–2021 |
| San Jose, California, US | 2 | 2020–2021 |
| Fridley, Minnesota, US | 1 | 2008 |
| Vancouver, CA | 1 | 1994 |