Inventor
Qixu Chen
Inventor
Milpitas, CA, US
Overview
35→
Patents
1998–2013
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 35 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 transducer38%
Y10TTechnical subjects covered by former us classification25%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
C23CCoating metallic material10%
H01JElectric discharge tubes or discharge lamps3%
Y02TClimate change mitigation technologies related to transportation3%
C30BSingle-crystal growth1%
PatentTitleYear
8,557,408'Perpendicular media with dual soft magnetic layers'20138,338,005'Recording layer and multilayered soft underlayer'20128,147,996'Perpendicular media with dual soft magnetic layers'20128,053,096'Nickel based alloy layer for perpendicular recording media'20117,323,259'Multilayer perpendicular media with high-boron or high-carbon additives to CoCr films'20087,247,396'Highly oriented perpendicular magnetic recording media'20077,235,314'Inter layers for perpendicular recording media'20077,041,205'Sputtering target and method for making composite soft magnetic films with a sintered target'20066,908,689'Ruthenium-aluminum underlayer for magnetic recording media'20056,759,149'Laminated medium with antiferromagnetic stabilization layers'20046,699,588'Medium with a NiNb sealing layer'20046,692,619'Sputtering target and method for making composite soft magnetic films'20046,641,936'Magnetic media with high Cr content, non-magnetic CoCrPt intermediate layers'20036,596,419'Medium with a seed layer and a B2-structured underlayer'20036,562,488'CoCrPtTaNbB alloy for magnetic recording medium'20036,509,083'High coercivity magnetic recording medium comprising a sputter textured layer'20036,482,301'Target shields for improved magnetic properties of a recording medium'20026,472,049'High coercivity magnetic recording medium comprising a sputter textured layer'20026,461,750'Magnetic recording medium with dual magnetic layers and high in-plane coercivity'20026,432,562'Magnetic recording medium with a nialru seedlayer'20026,403,241'CoCrPtB medium with a 1010 crystallographic orientation'20026,348,276'Magnetic recording media with a surface-oxidized nial sub-seedlayer'20026,346,339'Magnetic recording media with a nialox sub-seedlayer'20026,242,086'High coercivity, low noise magnetic recording medium comprising an intermediate cocrtaox layer'20016,218,028'High coercivity magnetic recording medium comprising a sputter textured layer'20016,146,754'Substantially isotropic magnetic recording medium comprising a seedlayer'20006,139,951'Magnetic recording medium with low temperature seedlayer for high signal-to-noise ratio'20006,132,863'Magnetic recording medium with grain size control layer'20006,010,795'Magnetic recording medium comprising a nickel aluminum or iron aluminum underlayer and chromium containing intermediate layer each having (200) dominant crystalographic orientation'20005,895,712'Magnetic recording medium with improved coercivity'19995,879,783'Low noise magnetic recording medium and method of manufacturing'19995,866,227'Magnetic recording medium with partially oxidized seed layer'19995,830,584'Bicrystal cluster magnetic recording medium'19985,763,071'High areal density magnetic recording medium with dual magnetic layers'19985,733,370'Method of manufacturing a bicrystal cluster magnetic recording medium'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2004Patents assigned to SEAGATE TECHNOLOGY (12)· patent assignee history
1998–2013Based in Milpitas, CA, US· patent location history
2000–2013Patents assigned to SEAGATE TECHNOLOGY LLC (23)· patent assignee history
2002Based in Fremont, CA, US· patent location history
2012–2013Patents assigned to CHANG CHUNG-HEE (3)· patent assignee history
2012–2013Patents assigned to CHEN QIXU (3)· patent assignee history
2012–2013Patents assigned to HARKNESS IV SAMUEL DACKE (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEAGATE TECHNOLOGY LLC | 23 | 2000–2013 |
| SEAGATE TECHNOLOGY | 12 | 1998–2004 |
| CHANG CHUNG-HEE | 3 | 2012–2013 |
| CHEN QIXUself | 3 | 2012–2013 |
| HARKNESS IV SAMUEL DACKE | 2 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Milpitas, California, US | 33 | 1998–2013 |
| Fremont, California, US | 2 | 2002 |