Inventor
WASHIZU KAZUHIKO
JP4 patents
Patents
4 patentsUS7271974B2Sep 18, 2007
Method of self servo write with low density gas
HITACHI GLOBAL STORAGE TECH18 citations80
US7573669B2Aug 11, 2009
Method and apparatus for writing pattern on disk
HITACHI GLOBAL STORAGE TECH8 citations79
US7518814B2Apr 14, 2009
Magnetic head tester and method of manufacturing magnetic disk drive
HITACHI GLOBAL STORAGE TECH6 citations62
US7423825B2Sep 9, 2008
Disk unit and manufacturing method thereof
HITACHI GLOBAL STORAGE TECH6 citations57