Inventor

HATTORI RYOHHEITA

US5 patents

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

HITACHI GLOBAL STORAGE TECH

3 patents

US7457072B2Nov 25, 2008

Disk drive with head fly-height compensation for disk surface variations

HITACHI GLOBAL STORAGE TECH25 citations87

US7375914B1May 20, 2008

Disk drive with improved method for operating a thermal head fly-height actuator

HITACHI GLOBAL STORAGE TECH37 citations87

US7692898B2Apr 6, 2010

Magnetic head that includes negative expansion material

HITACHI GLOBAL STORAGE TECH15 citations83

HITACHI GLOBAL STORAGE TECH NL

1 patent

US8023220B2Sep 20, 2011

Method for writing servo data to a disk and disk drive configured to write servo data utilizing the method

HITACHI GLOBAL STORAGE TECH NL2 citations61

HATTORI RYOHHEITA

1 patent

US8085489B2Dec 27, 2011

Method for writing servo patterns and disk drive including a controller for writing servo patterns according to the method

HATTORI RYOHHEITA1 citations41