Inventor · disambiguated record
Jack Jyh-Kau Chang
Also filed as: CHANG JACK · CHANG JACK J · CHANG JACK JYH-KAU
9 granted patents·3 pending applications·22 citations·filing 2000–2016
82Inventor score
Files withBIAN XIAOPING4HGST Netherlands BV2HITACHI GLOBAL STORAGE TECH2CHANG JACK J1HITACHI GLOBAL STORAGE TECH NL1
Top patents by PatentIndex Score
12 records- 0189US8168310B2Perpendicular magnetic recording media with oxide-containing exchange coupling layerBIAN XIAOPING·Filed 2009·Granted May 1, 2012·10 cites·14 claims
- 0270US7879467B2Media for recording devicesHITACHI GLOBAL STORAGE TECH NL·Filed 2009·Granted Feb 1, 2011·1 cites·15 claims
- 0370US7300713B2Magnetic thin film media with an underlayer of CrMoZr, CrMoNb or CrMoMnHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Nov 27, 2007·7 cites·27 claims
- 0468US9245564B2Soft underlayer having a multilayer structure for high areal density perpendicular recording mediaHGST Netherlands BV·Filed 2014·Granted Jan 26, 2016·2 cites·19 claims
- 0565US9412404B2Onset layer for perpendicular magnetic recording mediaBIAN XIAOPING·Filed 2009·Granted Aug 9, 2016·0 cites·3 claims
- 0664US8747628B2Perpendicular magnetic recording media with oxide-containing exchange coupling layerBIAN XIAOPING·Filed 2012·Granted Jun 10, 2014·1 cites·20 claims
- 0759US7670694B2Media for recording devicesHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Mar 2, 2010·0 cites·9 claims
- 0859US2016314811A1Onset layer for perpendicular magnetic recording mediaHGST Netherlands BV·Filed 2016·Application pending·0 cites
- 0958US8580409B2Perpendicular magnetic recording media having a dual onset layerBIAN XIAOPING·Filed 2009·Granted Nov 12, 2013·0 cites·21 claims
- 1043US6479169B1Low noise magnetic recording media having a interlayer filmTRACE STORAGE TECHNOLOGY CORP·Filed 2000·Granted Nov 12, 2002·1 cites·12 claims
- 1138US2012127609A1System, method and apparatus for perpendicular magnetic recording media having decoupled control and graded anisotropyCHANG JACK J·Filed 2010·Application pending·0 cites
- 1231US2002132139A1Magnetic recording medium having improved overwrite and SNR characteristicsFiled 2001·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Jack Jyh-Kau Chang 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 →