Inventor · disambiguated record
Ryohheita Hattori
Also filed as: HATTORI RYOHHEITA
5 granted patents·1 pending application·80 citations·filing 2006–2009
79Inventor score
Technology areasG11B
Files withHITACHI GLOBAL STORAGE TECH3CISEWSKI PAUL1HATTORI RYOHHEITA1HITACHI GLOBAL STORAGE TECH NL1
Top patents by PatentIndex Score
6 records- 0192US7375914B1Disk drive with improved method for operating a thermal head fly-height actuatorHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted May 20, 2008·37 cites·13 claims
- 0291US7692898B2Magnetic head that includes negative expansion materialHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Apr 6, 2010·15 cites·19 claims
- 0390US7457072B2Disk drive with head fly-height compensation for disk surface variationsHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Nov 25, 2008·25 cites·3 claims
- 0473US8023220B2Method for writing servo data to a disk and disk drive configured to write servo data utilizing the methodHITACHI GLOBAL STORAGE TECH NL·Filed 2009·Granted Sep 20, 2011·2 cites·18 claims
- 0558US8085489B2Method for writing servo patterns and disk drive including a controller for writing servo patterns according to the methodHATTORI RYOHHEITA·Filed 2009·Granted Dec 27, 2011·1 cites·16 claims
- 0641US2008151418A1Tradeoff between reliability and performance for a disk driveCISEWSKI PAUL·Filed 2006·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →