Inventor

Yimin Hsu

Inventor

Sunnyvale, CA, US

Overview

1997–2015

Patent span

Physics

Primary field (CPC G)

Patents· 56 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 transducer67%

Y10TTechnical subjects covered by former us classification19%

B82YSpecific uses or applications of nanostructures5%

G01RMeasuring electric variables2%

H01FMagnets1%

H01LSemiconductor devices1%

H05KPrinted circuits1%

H10DInorganic electric semiconductor devices1%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h101%

PatentTitleYear

8,947,827'Stitched pole having a tapered tip'2015 8,929,028'Perpendicular magnetic write head having a laminated trailing return pole'2015 8,836,059'Shape enhanced pin read head magnetic transducer with stripe height defined first and method of making same'2014 8,638,530'Current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) sensor having a top shield with an antiparallel structure'2014 8,619,391'Magnetic write heads with bi-layer wrap around shields having dissimilar shield layer widths'2013 8,503,131'Perpendicular magnetic write head having a novel shield structure'2013 8,441,757'Perpendicular magnetic write head with wrap-around shield, slanted pole and slanted pole bump fabricated by damascene process'2013 8,349,197'Method for manufacturing a perpendicular magnetic write head having a tapered write pole and non-magnetic bump structure'2013 8,254,066'Technique for measuring process induced magnetic anisotropy in a magnetoresistive sensor'2012 8,233,235'PMR writer having a tapered write pole and bump layer and method of fabrication'2012 8,139,319'Perpendicular magnetic recording system with magnetic precession for fast switching of perpendicular write pole magnetization'2012 8,108,985'Method for manufacturing a perpendicular magnetic write head'2012 8,111,479'Perpendicular magnetic recording head having a notched trailing shield'2012 8,066,892'Method for manufacturing a perpendicular magnetic write head with a wrap around shield'2011 8,054,586'Write head design and method for reducing adjacent track interference at very narrow track widths'2011 7,990,652'Perpendicular magnetic write head with stepped write pole for reduced MCW dependency on skew angle'2011 7,877,859'Shield fabrication of magnetic write heads'2011 7,881,019'Two step corner recess for secondary stray field reduction in a perpendicular magnetic recording head'2011 7,848,054'Perpendicular magnetic write head having a corner notched conformal, wrap-around, trailing magnetic shield for reduced adjacent track interference'2010 7,841,068'Methods of fabricating single-pole recording head having trapezoidal main pole and bevel angle promotion layer'2010 7,821,736'Shaped trailing shield of a perpendicular recording write element'2010 7,804,662'Perpendicular magnetic recording head including wrap around shield with notched top write gap and method of fabricating the same'2010 7,768,744'Perpendicular magnetic recording write head with coplanar main pole and return poles and magnetic recording system'2010 7,764,469'Notched shield and pole structure with slanted wing for perpendicular recording'2010 7,757,380'Methods for the manufacture of notched trailing shields'2010 7,656,611'Laminated high moment magnetic films antiferromagnetic coupling as write pole of perpendicular magnetic recording head'2010 7,649,711'Double notched shield and pole structure for stray field reduction in a magnetic head'2010 7,639,453'Perpendicular magnetic write head with shunt structure to prevent read sensor interference'2009 7,639,450'Flux shunt structure for reducing return pole corner fields in a perpendicular magnetic recording head'2009 7,616,403'Winged design for reducing corner stray magnetic fields'2009 7,593,183'Magnetic write head design for reducing temperature induced protrusion'2009 7,587,811'Method for manufacturing a magnetic write head for perpendicular magnetic data recording'2009 7,578,049'Method for constructing a magnetic write pole for a perpendicular magnetic recording head'2009 7,576,951'Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge'2009 7,549,213'Method for independent trackwidth and wall angle control and hexagonal write head'2009 7,551,396'Perpendicular magnetic write head having a studded trailing shield compatible with read/write offset'2009 7,538,976'Trailing shield design for reducing wide area track erasure (water) in a perpendicular recording system'2009 7,506,431'Method of manufacturing a perpendicular magnetic write head having a wrap-around trailing shield and a concave trailing edge main pole'2009 7,440,230'Perpendicular recording head with floating-trailing shield extending around first and second sides of main pole piece'2008 7,436,629'Laminated magnetic structure for use in a perpendicular magnetic write head'2008 7,310,205'Thermally assisted recording of magnetic media using a resonant cavity and energy'2007 7,280,314'Lower saturation field structure for perpendicular AFC pole'2007 7,253,992'Single-pole recording head having trapezoidal main pole and bevel angle promotion layer and methods of fabricating the same'2007 7,212,379'Perpendicular magnetic recording head with flare and taper configurations'2007 7,196,871'Head for perpendicular recording with a floating trailing shield'2007 7,009,812'Magnetic transducer for perpendicular magnetic recording with single pole write head with trailing shield'2006 7,002,775'Head for perpendicular magnetic recording with a shield structure connected to the return pole piece'2006 6,989,964'Magnetic head having a pole piece with a double pedestal structure'2006 6,975,485'Thin film magnetic recording inductive write head with laminated write gap'2005 6,952,326'High data rate write head'2005 6,833,976'Thin film magnetic recording inductive write head with laminated write gap'2004 6,693,769'High data rate write head'2004 6,671,127'Magnetic recording system with single coil for thermally assisted writing'2003 6,259,583'Laminated yoke head with a domain control element'2001 5,703,485'Method and test structure for determining magnetic domain switching field when fabricating patterned exchange biased magnetoresistive (MR) head'1997 5,684,658'High track density dual stripe magnetoresistive (DSMR) head'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997–2015Based in Sunnyvale, CA, US· patent location history

2001–2005Patents assigned to IBM (4)· patent assignee history

2004–2010Patents assigned to HITACHI GLOBAL STORAGE TECH (30)· patent assignee history

2009Based in Sunyvale, CA, US· patent location history

2010–2013Patents assigned to HITACHI GLOBAL STORAGE TECH NL (13)· patent assignee history

2011–2015Patents assigned to HSU YIMIN (11)· patent assignee history

2013–2015Patents assigned to HGST Netherlands BV (7)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI GLOBAL STORAGE TECH	30	2004–2010
HITACHI GLOBAL STORAGE TECH NL	13	2010–2013
HSU YIMINself	11	2011–2015
HGST Netherlands BV	7	2013–2015
IBM	4	2001–2005

Locations

Location	Patents	Span
Sunnyvale, California, US	55	1997–2015
Sunyvale, California, US	1	2009