Inventor
UMEDA HISASHI
JP8 patents
⚠️ This page may combine multiple inventors who share the name “UMEDA HISASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
5 patentsUS7271984B2Sep 18, 2007
Magnetic recording medium having at least two coupled magnetic layers, magnetic storage apparatus and recording method
FUJITSU LTD24 citations92
US6645646B1Nov 11, 2003
Magnetic recording medium and magnetic storage apparatus
FUJITSU LTD36 citations92
US7625643B2Dec 1, 2009
Magnetic recording medium, magnetic storage apparatus and recording method
FUJITSU LTD13 citations83
US7435489B2Oct 14, 2008
Magnetic recording medium, magnetic storage apparatus and recording method
FUJITSU LTD5 citations62
US6689496B1Feb 10, 2004
Magnetic recording medium, method of producing magnetic recording medium, and magnetic storage apparatus
FUJITSU LTD5 citations60