Inventor
Chung-Hee Chang
Inventor
Fremont, CA, US
Overview
Patents· 15 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 transducer54%
Y10TTechnical subjects covered by former us classification12%
C23CCoating metallic material8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
B01DSeparation4%
B29CShaping or joining of plastics4%
B29LIndexing scheme associated with subclass b29c, relating to particular articles4%
C02FTreatment of water, waste water, sewage, or sludge4%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management4%
PatentTitleYear
9,190,095'Interlayer comprising chromium-containing alloy'20158,557,408'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'20128,025,993'Recording media interlayer structure'20117,354,618'Oxygen plasma post-deposition treatment of magnetic recording media'20087,235,314'Inter layers for perpendicular recording media'20077,192,663'Magnetic anisotropy of soft-underlayer induced by seedlayer'20077,175,766'Apparatus and method for performing tertiary treatment of sewage based on porous filtering media'20077,081,268'In-situ post-deposition oxidation treatment for improved magnetic recording media'20067,060,376'Amorphous soft underlayers for perpendicular recording media'20066,914,749'Magnetic anisotropy of soft-underlayer induced by magnetron field'20056,777,066'Perpendicular magnetic recording media with improved interlayer'20046,709,773'Magnetic anisotrophy of soft-underlayer induced by seedlayer'20046,667,118'Texture-induced magnetic anisotropy of soft underlayers for perpendicular recording media'2003Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2003–2015Patents assigned to SEAGATE TECHNOLOGY LLC (13)· patent assignee history
2003–2015Based in Fremont, CA, US· patent location history
2007Based in Gyeonggi-do, KR· 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
2012Patents assigned to NOLAN THOMAS PATRICK (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEAGATE TECHNOLOGY LLC | 13 | 2003–2015 |
| CHANG CHUNG-HEEself | 3 | 2012–2013 |
| CHEN QIXU | 3 | 2012–2013 |
| HARKNESS IV SAMUEL DACKE | 2 | 2012–2013 |
| NOLAN THOMAS PATRICK | 2 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fremont, California, US | 14 | 2003–2015 |
| Gyeonggi-do, KR | 1 | 2007 |