Inventor · disambiguated record
Masahiko Sega
Also filed as: SEGA MASAHIKO
20 granted patents·1 pending application·264 citations·filing 1990–2007
95Inventor score
Top patents by PatentIndex Score
21 records- 0193US7330334B2Magnetic disk apparatus with shroud and having open space downstream of moveable arms in communication with bypass channelHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Feb 12, 2008·14 cites·9 claims
- 0293US6369977B1Magnetic disk deviceHITACHI LTD·Filed 2001·Granted Apr 9, 2002·33 cites·8 claims
- 0392US6560066B2Magnetic disk deviceHITACHI LTD·Filed 2001·Granted May 6, 2003·30 cites·18 claims
- 0487US6665139B2Magnetic-disc unit with gap between disc and shroudHITACHI LTD·Filed 2001·Granted Dec 16, 2003·23 cites·26 claims
- 0587US6600626B2Magnetic disk apparatusHITACHI LTD·Filed 2002·Granted Jul 29, 2003·19 cites·9 claims
- 0682US7535672B2Magnetic disk drive with elastic support memberHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted May 19, 2009·7 cites·16 claims
- 0780US6501645B1Magnetic disk drive with unique cable wiring scheme and electronic device using the sameHITACHI LTD·Filed 2000·Granted Dec 31, 2002·16 cites·6 claims
- 0877US7336440B2Magnetic disc unit with gap between magnetic disc and shroudHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Feb 26, 2008·2 cites·4 claims
- 0974US7072141B2Magnetic disc unit with range of gap between disc and shroudHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Jul 4, 2006·6 cites·14 claims
- 1074US6751050B1Magnetic disc unitHITACHI LTD·Filed 1999·Granted Jun 15, 2004·18 cites·15 claims
- 1172US6982852B2Carriage arm assembly for magnetic disk driveHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Jan 3, 2006·10 cites·16 claims
- 1267US7580221B2Magnetic disk drive with compensation against disturbanceHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Aug 25, 2009·1 cites·22 claims
- 1367US6115213ABearing assembly having compact thickness, spindle motor and actuator using the same bearing assembly, and magnetic disk driveHITACHI LTD·Filed 1995·Granted Sep 5, 2000·23 cites·8 claims
- 1467US5267111AVoice coil motor with discrete flux pathsHITACHI LTD·Filed 1991·Granted Nov 30, 1993·16 cites·10 claims
- 1565US6898049B2Magnetic disk apparatus with air flow bypass channelHITACHI LTD·Filed 2003·Granted May 24, 2005·4 cites·4 claims
- 1664US5862011APC card type magnetic disk deviceHITACHI LTD·Filed 1996·Granted Jan 19, 1999·18 cites·13 claims
- 1763US7643245B2Magnetic disc unit with gap between magnetic disc and shroudHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Jan 5, 2010·0 cites·4 claims
- 1863US6927936B2Magnetic disk deviceHITACHI LTD·Filed 2004·Granted Aug 9, 2005·3 cites·14 claims
- 1963US5416658AInformation storage device using a rotary recording mediumHITACHI LTD·Filed 1993·Granted May 16, 1995·14 cites·15 claims
- 2046US5241435AServo information recording method for a storage apparatusHITACHI LTD·Filed 1990·Granted Aug 31, 1993·7 cites·12 claims
- 2145US2003058575A1Magnetic disk deviceFiled 2002·Application pending·0 cites
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