Inventor

OHTA KATSUHIKO

JP5 patents

⚠️ This page may combine multiple inventors who share the name “OHTA KATSUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WESTERN DIGITAL TECH INC

2 patents

US12354631B2Jul 8, 2025

Ramp support for a magnetic storage device

WESTERN DIGITAL TECH INC0 citations56

US12542154B2Feb 3, 2026

Sealed hard disk drive base insert

WESTERN DIGITAL TECH INC0 citations45

HITACHI GLOBAL STORAGE TECH NL

1 patent

US7986496B2Jul 26, 2011

Disk drive device and ramp used therefor

HITACHI GLOBAL STORAGE TECH NL6 citations60

HITACHI GLOBAL STORAGE TECH

1 patent

US7830639B2Nov 9, 2010

Data storage device and disk drive

HITACHI GLOBAL STORAGE TECH1 citations51

YONEDA ISAO

1 patent

US8553348B2Oct 8, 2013

Disk drive and servo-control method therefor

YONEDA ISAO0 citations31