Inventor · disambiguated record
Katsuhiko Ohta
Also filed as: OHTA KATSUHIKO
4 granted patents·1 pending application·7 citations·filing 2007–2025
63Inventor score
Technology areasG11B
Files withWESTERN DIGITAL TECH INC2HITACHI GLOBAL STORAGE TECH1HITACHI GLOBAL STORAGE TECH NL1YONEDA ISAO1
Top patents by PatentIndex Score
5 records- 0183US7986496B2Disk drive device and ramp used thereforHITACHI GLOBAL STORAGE TECH NL·Filed 2008·Granted Jul 26, 2011·6 cites·14 claims
- 0270US2025308551A1Ramp support for a magnetic storage deviceWESTERN DIGITAL TECH INC·Filed 2025·Application pending·0 cites
- 0367US7830639B2Data storage device and disk driveHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Nov 9, 2010·1 cites·14 claims
- 0460US12354631B2Ramp support for a magnetic storage deviceWESTERN DIGITAL TECH INC·Filed 2023·Granted Jul 8, 2025·0 cites·19 claims
- 0531US8553348B2Disk drive and servo-control method thereforYONEDA ISAO·Filed 2010·Granted Oct 8, 2013·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →