Inventor
OKAZAKI TOSHIHISA
JP21 patents
⚠️ This page may combine multiple inventors who share the name “OKAZAKI TOSHIHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
13 patentsUS5677813AOct 14, 1997
Rotary information recording and reproduction apparatus
HITACHI LTD77 citations96
US6751050B1Jun 15, 2004
Magnetic disc unit
HITACHI LTD18 citations92
US6665139B2Dec 16, 2003
Magnetic-disc unit with gap between disc and shroud
HITACHI LTD23 citations92
US6600626B2Jul 29, 2003
Magnetic disk apparatus
HITACHI LTD19 citations92
US6445549B1Sep 3, 2002
Magnetic disk drive
HITACHI LTD7 citations73
US5936802AAug 10, 1999
Wiring structure in the load beam and guide arm of a magnetic disk drive
HITACHI LTD10 citations73
US5953178ASep 14, 1999
Magnetic disk apparatus
HITACHI LTD7 citations72
US5995327ANov 30, 1999
Magnetic disk device for restraining vibration of head mounting part
HITACHI LTD13 citations71
US6504683B1Jan 7, 2003
Magnetic disk apparatus in which contact between a disk and a carriage arm by an external impact is prevented
HITACHI LTD2 citations63
US6898049B2May 24, 2005
Magnetic disk apparatus with air flow bypass channel
HITACHI LTD4 citations62
US6657822B1Dec 2, 2003
Magnetic disk apparatus
HITACHI LTD4 citations62
US6353517B1Mar 5, 2002
Magnetic disk drive
HITACHI LTD4 citations62
US6233120B1May 15, 2001
Magnetic disk device
HITACHI LTD2 citations57
HITACHI GLOBAL STORAGE TECH
6 patentsUS7330334B2Feb 12, 2008
Magnetic disk apparatus with shroud and having open space downstream of moveable arms in communication with bypass channel
HITACHI GLOBAL STORAGE TECH14 citations92
US7072141B2Jul 4, 2006
Magnetic disc unit with range of gap between disc and shroud
HITACHI GLOBAL STORAGE TECH6 citations73
US7161754B2Jan 9, 2007
Servo pattern writing method and magnetic disk drive for carrying out the same
HITACHI GLOBAL STORAGE TECH7 citations67
US7336440B2Feb 26, 2008
Magnetic disc unit with gap between magnetic disc and shroud
HITACHI GLOBAL STORAGE TECH2 citations62
US7130151B2Oct 31, 2006
Disk device and unbalance correcting method thereof
HITACHI GLOBAL STORAGE TECH4 citations58
US7643245B2Jan 5, 2010
Magnetic disc unit with gap between magnetic disc and shroud
HITACHI GLOBAL STORAGE TECH0 citations52