Inventor
OGAWA TAKUJI
JP24 patents
⚠️ This page may combine multiple inventors who share the name “OGAWA TAKUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
17 patentsUS5173819ADec 22, 1992
Disk apparatus having an improved cooling structure
HITACHI LTD180 citations97
US7057981B2Jun 6, 2006
Disk array system and method for controlling disk array system
HITACHI LTD33 citations96
US4881136ANov 14, 1989
Method and apparatus for detecting minute defects on magnetic disk by monitoring both amplitude decrease and phase shift of a reproduced signal
HITACHI LTD65 citations95
US7453774B2Nov 18, 2008
Disk array system
HITACHI LTD9 citations92
US7203135B2Apr 10, 2007
Disk array system and method for controlling disk array system
HITACHI LTD10 citations92
US7200074B2Apr 3, 2007
Disk array system and method for controlling disk array system
HITACHI LTD21 citations92
US6490123B1Dec 3, 2002
Disc drive having 3.5 inch form factor housing and 2.5 inch form factor disk media
HITACHI LTD43 citations91
US5572379ANov 5, 1996
Magnetic recording drive having arrangements for average useful life of magnetorestive effects sensors
HITACHI LTD6 citations73
US5109311AApr 28, 1992
Magnetic disk device and method of recording/retrieving information
HITACHI LTD17 citations73
US5241435AAug 31, 1993
Servo information recording method for a storage apparatus
HITACHI LTD7 citations72
US8037245B2Oct 11, 2011
Storage system
HITACHI LTD4 citations63
US7447121B2Nov 4, 2008
Disk array system
HITACHI LTD1 citations63
US7181570B2Feb 20, 2007
Diskarray system for suppressing disk fault
HITACHI LTD2 citations61
US5148334ASep 15, 1992
Phase synchronization circuit
HITACHI LTD2 citations59
US7865665B2Jan 4, 2011
Storage system for checking data coincidence between a cache memory and a disk drive
HITACHI LTD0 citations52
US6069762AMay 30, 2000
Magnetic recording drive having arrangement for averaging useful life of magnetoresistive effect sensors
HITACHI LTD0 citations52
US6014275AJan 11, 2000
Magnetic recording drive
HITACHI LTD0 citations52