Inventor

NUMATA NAOYUKI

JP3 patents

Patents

3 patents

US6989203B2Jan 24, 2006

Magnetic recording medium

SONY CORP0 citations45

US6972158B2Dec 6, 2005

Magnetic recording medium

SONY CORP0 citations45

US6929850B2Aug 16, 2005

Magnetic recording medium

SONY CORP0 citations45