Inventor

OBATA SUMIO

JP4 patents

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

HITACHI LTD

2 patents

US5657176AAug 12, 1997

Method and apparatus for optimizing the recording and reproducing of information from magnetic disks

HITACHI LTD22 citations89

US5430581AJul 4, 1995

Method and apparatus for optimizing the recording and reproducing of information from magnetic disks

HITACHI LTD11 citations68

HITACHI GLOBAL STORAGE TECH

2 patents

US7457068B2Nov 25, 2008

Magnetic disk drive with efficient power generation

HITACHI GLOBAL STORAGE TECH1 citations49

US7488183B2Feb 10, 2009

Data storage device and connector disposed therein

HITACHI GLOBAL STORAGE TECH0 citations37