Inventor

OHTOMO SHIGEKAZU

JP9 patents

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

HITACHI GLOBAL STORAGE TECH

6 patents

US7310203B2Dec 18, 2007

Thin film magnetic head having magnetic pole edge layer for achieving both improvement of recording magnetic field and reduction of unnecessary leakage magnetic field, and method of manufacturing same

HITACHI GLOBAL STORAGE TECH7 citations73

US7142392B2Nov 28, 2006

Thin film head, producing method thereof and magnetic disk apparatus

HITACHI GLOBAL STORAGE TECH7 citations73

US7061726B2Jun 13, 2006

Thin film magnetic head

HITACHI GLOBAL STORAGE TECH7 citations73

US7042677B2May 9, 2006

Recording/producing separated type magnetic head

HITACHI GLOBAL STORAGE TECH6 citations62

US7576952B2Aug 18, 2009

Magnetic write head including a magnetic pole piece having a protrusion

HITACHI GLOBAL STORAGE TECH6 citations61

US7821737B2Oct 26, 2010

Thin film magnetic head for high density recording and having a leading side magnetic pole piece of variable width at the media facing surface

HITACHI GLOBAL STORAGE TECH0 citations45

HITACHI LTD

1 patent

US6791795B2Sep 14, 2004

Thin film magnetic head having inductive write portion features that provide high recording field strength

HITACHI LTD51 citations92

HITACHI METALS LTD

1 patent

US6101068AAug 8, 2000

MR composite-type thin-film magnetic head having an upper pole with a high saturation magnetic flux density and an intermediate pole with a high resistivity

HITACHI METALS LTD17 citations81

HITACHI GLOBAL STORAGE TEHCNOL

1 patent

US7142391B2Nov 28, 2006

Thin film head, producing method thereof and magnetic disk apparatus

HITACHI GLOBAL STORAGE TEHCNOL12 citations79