Inventor · disambiguated record
Masahiko Hatatani
Also filed as: HATATANI MASAHIKO
11 granted patents·1 pending application·127 citations·filing 2002–2015
89Inventor score
Technology areasG11B
Top patents by PatentIndex Score
12 records- 0195US9142227B1Microwave assisted magnetic recording (MAMR) write head and systemHGST Netherlands BV·Filed 2014·Granted Sep 22, 2015·31 cites·12 claims
- 0292US7599151B2Magnetic head with laminated side shieldsHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Oct 6, 2009·40 cites·19 claims
- 0387US8149548B2Magnetic head and manufacturing method thereofHATATANI MASAHIKO·Filed 2009·Granted Apr 3, 2012·17 cites·16 claims
- 0485US7505232B2Magnetic head with side shield and manufacturing method thereofHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Mar 17, 2009·9 cites·14 claims
- 0577US8976493B1Magnetic read sensor with novel pinned layer and side shield design for improved data track resolution and magnetic pinning robustnessHGST Netherlands BV·Filed 2013·Granted Mar 10, 2015·4 cites·21 claims
- 0677US6937449B2Spin-valve head containing closed-flux-structure domain control filmsHITACHI LTD·Filed 2002·Granted Aug 30, 2005·12 cites·18 claims
- 0769US7535683B2Magnetoresistive head with improved in-stack longitudinal biasing layersHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted May 19, 2009·7 cites·10 claims
- 0868US7440240B2Magnetic head with domain stabilization and magnetic recording/reproducing apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Oct 21, 2008·1 cites·10 claims
- 0966US7274542B2Magnetic sensor having a free layer containing a single magnetic domainHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Sep 25, 2007·6 cites·10 claims
- 1054US2015092303A1Graded side shield gap readerHGST Netherlands BV·Filed 2013·Application pending·0 cites
- 1149US9263086B2Magnetization control for magnetic shield in magnetic recording headHGST Netherlands BV·Filed 2014·Granted Feb 16, 2016·0 cites·19 claims
- 1246US9406322B2Graded side shield gap readerHGST Netherlands BV·Filed 2015·Granted Aug 2, 2016·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →