Inventor · disambiguated record
Cherng-Chyi Han
Also filed as: HAN CHERNG-CHYI
119 granted patents·6 pending applications·1,885 citations·filing 1996–2023
99Inventor score
Top patents by PatentIndex Score
125 records- 0198US7335960B2MRAM cell with flat topography and controlled bit line to free layer distance and method of manufactureHEADWAY TECHNOLOGIES INC·Filed 2005·Granted Feb 26, 2008·100 cites·9 claims
- 0297US9852752B1Plasmon generator with metallic waveguide blocker for TAMRHEADWAY TECH INC·Filed 2016·Granted Dec 26, 2017·45 cites·12 claims
- 0396US7898773B2Perpendicular magnetic recording head with a side write shieldHEADWAY TECHNOLOGIES INC·Filed 2006·Granted Mar 1, 2011·26 cites·7 claims
- 0496US7390529B2Free layer for CPP GMR having iron rich NiFeHEADWAY TECHNOLOGIES INC·Filed 2004·Granted Jun 24, 2008·67 cites·19 claims
- 0596US7331100B2Process of manufacturing a seed/AFM combination for a CPP GMR deviceHEADWAY TECHNOLOGIES INC·Filed 2004·Granted Feb 19, 2008·57 cites·17 claims
- 0695US8305711B2Process of octagonal pole for microwave assisted magnetic recording (MAMR) writerLI MIN·Filed 2010·Granted Nov 6, 2012·38 cites·24 claims
- 0795US7979978B2Method for manufacturing a self-aligned full side shield PMRHEADWAY TECHNOLOGIES INC·Filed 2007·Granted Jul 19, 2011·23 cites·12 claims
- 0895US7978431B2Method to make a perpendicular magnetic recording head with a bottom side shieldHEADWAY TECHNOLOGIES INC·Filed 2007·Granted Jul 12, 2011·20 cites·16 claims
- 0994US6322640B1Multiple thermal annealing method for forming antiferromagnetic exchange biased magnetoresistive (MR) sensor elementHEADWAY TECHNOLOGIES INC·Filed 2000·Granted Nov 27, 2001·59 cites·17 claims
- 1093US8611046B2PMR writer with graded side shieldWU YAN·Filed 2010·Granted Dec 17, 2013·22 cites·8 claims
- 1193US7773341B2Laminated film for head applicationsHEADWAY TECHNOLOGIES INC·Filed 2007·Granted Aug 10, 2010·15 cites·21 claims
- 1292US8379347B2Perpendicular shield pole writer with tapered main pole and tapered non-magnetic top shaping layerHEADWAY TECHNOLOGIES INC·Filed 2012·Granted Feb 19, 2013·14 cites·6 claims
- 1392US6493926B2Bi-layer lift-off process for high track density GMR headHEADWAY TECHNOLOGIES INC·Filed 2001·Granted Dec 17, 2002·35 cites·9 claims
- 1491US10262683B2Self-aligned hybrid Au—Rh near field transducer for enhanced reliabilityHEADWAY TECH INC·Filed 2016·Granted Apr 16, 2019·14 cites·29 claims
- 1591US8184399B2Magnetic write head with thin and thick portions for balancing writability and ateWU YAN·Filed 2010·Granted May 22, 2012·17 cites·27 claims
- 1691US8117738B2Method to make a perpendicular magnetic recording head with a side write shieldHAN CHERNG-CHYI·Filed 2011·Granted Feb 21, 2012·15 cites·13 claims
- 1791US7154708B2Thermal protrusion reduction in magnet heads by utilizing a heat-spreading padHEADWAY TECHNOLOGIES INC·Filed 2005·Granted Dec 26, 2006·23 cites·10 claims
- 1890US6857180B2Method for fabricating a patterned synthetic longitudinal exchange biased GMR sensorHEADWAY TECHNOLOGIES INC·Filed 2002·Granted Feb 22, 2005·33 cites·11 claims
- 1990US6449131B2Canted longitudinal patterned exchange biased dual-stripe magnetoresistive (DSMR) sensor element and method for fabrication thereofHEADWAY TECHNOLOGIES INC·Filed 2001·Granted Sep 10, 2002·37 cites·6 claims
- 2090US6415500B1Method to prevent electrostatic discharge for MR/GMR wafer fabricationHEADWAY TECHNOLOGIES INC·Filed 2000·Granted Jul 9, 2002·34 cites·23 claims
- 2189US8056213B2Method to make PMR head with integrated side shield (ISS)HAN CHERNG-CHYI·Filed 2008·Granted Nov 15, 2011·8 cites·14 claims
- 2289US6785954B2Method for fabricating lead overlay (LOL) on the bottom spin valve GMR read sensorHEADWAY TECHNOLOGIES INC·Filed 2002·Granted Sep 7, 2004·23 cites·25 claims
- 2389US6632474B1Robust hard bias/conductor lead structures for future GMR headsHEADWAY TECHNOLOGIES INC·Filed 2000·Granted Oct 14, 2003·23 cites·9 claims
- 2489US6383574B1Ion implantation method for fabricating magnetoresistive (MR) sensor elementHEADWAY TECHNOLOGIES INC·Filed 1999·Granted May 7, 2002·46 cites·6 claims
- 2589US6103136AMethod for forming a soft adjacent layer (SAL) magnetoresistive (MR) sensor element with transversely magnetically biased soft adjacent layer (SAL)HEADWAY TECHNOLOGIES INC·Filed 1998·Granted Aug 15, 2000·62 cites·8 claims
- 2688US10586560B1Rhodium film with thin template layer and its application to a thermally assisted magnetic recording (TAMR) writerHEADWAY TECH INC·Filed 2019·Granted Mar 10, 2020·8 cites·12 claims
- 2788US7016165B2Abutted junction GMR read head with an improved hard bias layer and a method for its fabricationHEADWAY TECHNOLOGIES INC·Filed 2001·Granted Mar 21, 2006·24 cites·14 claims
- 2887US8728333B2Method to fabricate small dimension devices for magnetic recording applicationsWANG HUI-CHUAN·Filed 2010·Granted May 20, 2014·8 cites·20 claims
- 2987US8238056B2Perpendicular shield pole writer with tapered main pole and tapered non-magnetic top shaping layerGUAN LIEJIE·Filed 2007·Granted Aug 7, 2012·11 cites·7 claims
- 3087US8118990B2Electroplated magnetic film for read-write applicationsLIU XIAOMIN·Filed 2006·Granted Feb 21, 2012·6 cites·2 claims
- 3187US6668443B2Process for manufacturing a spin valve recording headHEADWAY TECHNOLOGIES INC·Filed 2001·Granted Dec 30, 2003·19 cites·10 claims
- 3286US9337414B2Reader sensor structure and its method of constructionHEADWAY TECHNOLOGIES INC·Filed 2013·Granted May 10, 2016·7 cites·9 claims
- 3386US8189295B2Perpendicular magnetic recording head with a bottom side shieldHAN CHERNG-CHYI·Filed 2011·Granted May 29, 2012·8 cites·8 claims
- 3486US6524491B1Double plate-up process for fabrication of composite magnetoresistive shared polesHEADWAY TECHNOLOGIES INC·Filed 1999·Granted Feb 25, 2003·49 cites·13 claims
- 3586US5874010APole trimming technique for high data rate thin film headsHEADWAY TECHNOLOGIES INC·Filed 1996·Granted Feb 23, 1999·59 cites·23 claims
- 3685US8173028B2Method of manufacturing magnetic head for perpendicular magnetic recording including two side shieldsISHIZAKI KAZUO·Filed 2009·Granted May 8, 2012·9 cites·9 claims
- 3785US7382577B2Magnetic write head having a wider trailing edge pole structureHEADWAY TECHNOLOGIES INC·Filed 2005·Granted Jun 3, 2008·5 cites·7 claims
- 3885US5684658AHigh track density dual stripe magnetoresistive (DSMR) headHEADWAY TECHNOLOGIES INC·Filed 1996·Granted Nov 4, 1997·46 cites·16 claims
- 3984US7221539B2Stitched shielded pole structure for a perpendicular magnetic recording write headHEADWAY TECHNOLOGIES INC·Filed 2004·Granted May 22, 2007·17 cites·6 claims
- 4084US6969895B2MRAM cell with flat topography and controlled bit line to free layer distance and method of manufactureHEADWAY TECHNOLOGIES INC·Filed 2003·Granted Nov 29, 2005·26 cites·9 claims
- 4184US6591480B1Process for fabricating a flux concentrating stitched headHEADWAY TECHNOLOGIES INC·Filed 2000·Granted Jul 15, 2003·26 cites·10 claims
- 4284US6469875B1Stitched write head design having a sunken shared poleHEADWAY TECHNOLOGIES INC·Filed 2000·Granted Oct 22, 2002·15 cites·14 claims
- 4383US6393692B1Method of manufacture of a composite shared pole design for magnetoresistive merged headsHEADWAY TECHNOLOGIES INC·Filed 1999·Granted May 28, 2002·35 cites·22 claims
- 4483US6243939B1High ion beam etch selectivity for partial pole trim applicationHEADWAY TECHNOLOGIES INC·Filed 1999·Granted Jun 12, 2001·46 cites·19 claims
- 4582US7268975B2High data rate writer with low resistance coil and short yokeHEADWAY TECHNOLOGIES INC·Filed 2005·Granted Sep 11, 2007·4 cites·12 claims
- 4681US8614860B2PMR head with integrated side shield (ISS)HAN CHERNG-CHYI·Filed 2011·Granted Dec 24, 2013·4 cites·6 claims
- 4781US7657992B2Method for making a perpendicular magnetic recording write head with a self aligned stitched write shieldHEADWAY TECHNOLOGIES INC·Filed 2007·Granted Feb 9, 2010·3 cites·7 claims
- 4881US6358635B1Magnetic recording sensor with stabilizing shieldHEADWAY TECHNOLOGIES INC·Filed 1999·Granted Mar 19, 2002·33 cites·28 claims
- 4981US6129957AMethod of forming a second antiferromagnetic exchange-coupling layer for magnetoresistive (MR) and giant MR (GMR) applicationsHEADWAY TECHNOLOGIES INC·Filed 1999·Granted Oct 10, 2000·37 cites·34 claims
- 5080US8842389B2Wrap-around shielded writer with highly homogeneous shield materialBAI ZHIGANG·Filed 2009·Granted Sep 23, 2014·3 cites·10 claims
Showing the top 50 of 125 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Cherng-Chyi Han files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →