Inventor
SATOH NAOKI
JP41 patents
⚠️ This page may combine multiple inventors who share the name “SATOH NAOKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
25 patentsUS6697976B1Feb 24, 2004
Performance evaluation method, performance evaluation system, and information storage apparatus using same
HITACHI LTD32 citations93
US6493165B1Dec 10, 2002
Magnetic disk drive
HITACHI LTD19 citations93
US6141167AOct 31, 2000
Compensating circuit, equalizer and magnetic recording/reproducing apparatus using the same
HITACHI LTD25 citations93
US6069856AMay 30, 2000
Information recording/reproduction method and apparatus using EPRML connection processing system using concatenated demodulators
HITACHI LTD24 citations93
US5572503ANov 5, 1996
Correcting non-linear distortions of optical information with a non-linear equalizer
HITACHI LTD32 citations93
US6862505B2Mar 1, 2005
Vehicle-mounted information processing apparatus having magnetic disk device
HITACHI LTD21 citations92
US6556365B2Apr 29, 2003
Storage media having a wide servo band and high data format efficiency and a storage using the same
HITACHI LTD23 citations92
US6496316B1Dec 17, 2002
Magnetic recording and reproduction apparatus
HITACHI LTD22 citations92
US6469853B1Oct 22, 2002
Storage media having a wide servo band and high data format efficiency and a storage using the same
HITACHI LTD22 citations92
US6104331AAug 15, 2000
Reproduced signal processing method, reproduced signal processing circuit, and a magnetic storage apparatus
HITACHI LTD21 citations92
US6046873AApr 4, 2000
Magnetic recording and reproducing apparatus including a viterbi detector having a variable reference amplitude value
HITACHI LTD17 citations92
US5970091AOct 19, 1999
Equalizer having a processing unit for selecting a coefficient out of a coefficient table
HITACHI LTD19 citations92
US5818655AOct 6, 1998
Signal processing circuit and information recording/reproducing apparatus using the same, and method for optimizing coefficients of equalizer circuit
HITACHI LTD30 citations92
US5519398AMay 21, 1996
Signal processing apparatus having A/D conversion function
HITACHI LTD21 citations92
US5805024ASep 8, 1998
Phase lock loop system including a primary phase lock loop apparatus and a high order phase lock loop apparatus
HITACHI LTD23 citations90
US6215744B1Apr 10, 2001
Information recording/reproducing method and apparatus using EPRML connection processing system
HITACHI LTD15 citations84
US5594756AJan 14, 1997
Decision feedback equalization circuit
HITACHI LTD19 citations84
US6661594B2Dec 9, 2003
Signal processing circuit and information recording/reproducing apparatus using the same, and method for optimizing coefficients of equalizer circuit
HITACHI LTD14 citations83
US6304402B1Oct 16, 2001
Equalizer and magnetically recorded-signal reproducer
HITACHI LTD9 citations74
US5659309AAug 19, 1997
Data recording/reproducing apparatus having viterbi decoder and method thereof
HITACHI LTD9 citations74
US6175460B1Jan 16, 2001
Magnetic recording and reproduction apparatus
HITACHI LTD6 citations73
US5471141ANov 28, 1995
Method and apparatus for regulating radio frequency pulse
HITACHI LTD11 citations71
US6972917B2Dec 6, 2005
Signal processing technique for preventing delay in read time from retry operations
HITACHI LTD4 citations63
US6577461B2Jun 10, 2003
Magnetic disk drive
HITACHI LTD5 citations63
US6144515ANov 7, 2000
Equalizer having a processing unit for selecting a coefficient out of a coefficient table
HITACHI LTD2 citations63
HITACHI GLOBAL STORAGE TECH
10 patentsUS7486460B2Feb 3, 2009
Disk drive with enhanced storage capacity increase ratio
HITACHI GLOBAL STORAGE TECH66 citations98
US7667921B2Feb 23, 2010
Suspension having magnetic head assembly mounted thereon and magnetic recording disk drive using the suspension
HITACHI GLOBAL STORAGE TECH40 citations93
US6987635B2Jan 17, 2006
Magnetic disk drive which accesses host RAM
HITACHI GLOBAL STORAGE TECH26 citations93
US7088543B2Aug 8, 2006
Suspension having magnetic head assembly mounted thereon and magnetic recording disk drive using the suspension
HITACHI GLOBAL STORAGE TECH26 citations92
US7372656B2May 13, 2008
disk drive with side erase control
HITACHI GLOBAL STORAGE TECH17 citations84
US6963462B2Nov 8, 2005
Servo detection control system, servo detection control method and hard disk drive
HITACHI GLOBAL STORAGE TECH15 citations84
US7085084B2Aug 1, 2006
Magnetic disk apparatus and servo pattern recording method therefor
HITACHI GLOBAL STORAGE TECH13 citations83
US7375913B2May 20, 2008
Suspension having magnetic head assembly mounted thereon and magnetic recording disk drive using the suspension
HITACHI GLOBAL STORAGE TECH6 citations74
US7612960B2Nov 3, 2009
Method for formatting data sectors on magnetic disk, and magnetic disk drive
HITACHI GLOBAL STORAGE TECH2 citations63
US7408733B2Aug 5, 2008
Magnetic disk drive and magnetic disk medium
HITACHI GLOBAL STORAGE TECH4 citations62
RICOH KK
3 patentsUS7164870B2Jan 16, 2007
Method and apparatus for image forming capable of effectively performing an image fixing
RICOH KK28 citations92
US6987936B2Jan 17, 2006
Image forming apparatus, image forming method, and fixing unit
RICOH KK19 citations81
US7659726B2Feb 9, 2010
Image forming apparatus with plural AC sources
RICOH KK6 citations60