Inventor
SAGA HIDEKI
JP55 patents
⚠️ This page may combine multiple inventors who share the name “SAGA HIDEKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
41 patentsUS6236635B1May 22, 2001
Information recording method and apparatus with suppressed mark edge jitters
HITACHI LTD93 citations99
US6256277B1Jul 3, 2001
Information recording apparatus having controlled recording energy generation circuit
HITACHI LTD84 citations98
US5867455AFeb 2, 1999
Optical method and device for irradiating domains at predetermined positions
HITACHI LTD117 citations98
US7529158B2May 5, 2009
Optical near-field generator and recording apparatus using the optical near-field generator
HITACHI LTD46 citations96
US7012871B2Mar 14, 2006
Information recording method and apparatus with suppressed mark edge jitters
HITACHI LTD40 citations96
US6529467B2Mar 4, 2003
Information recording method and apparatus with suppressed mark edge jitters
HITACHI LTD25 citations96
US6343056B2Jan 29, 2002
Information recording method and apparatus with suppressed mark edge jitters
HITACHI LTD23 citations96
US6104685AAug 15, 2000
Information recording apparatus
HITACHI LTD48 citations96
US5790482AAug 4, 1998
Optical disk apparatus for recording information using a light intensity modulation method with a partial response detector
HITACHI LTD62 citations96
US6809908B1Oct 26, 2004
Light induction type thin film magnetic head
HITACHI LTD21 citations93
US6683823B2Jan 27, 2004
Method for reproducing information on a recording medium
HITACHI LTD22 citations93
US6678220B1Jan 13, 2004
Information recording apparatus
HITACHI LTD26 citations93
US7133230B2Nov 7, 2006
Recording head and information recording apparatus
HITACHI LTD40 citations92
US6529466B2Mar 4, 2003
Information recording apparatus
HITACHI LTD17 citations92
US6188658B1Feb 13, 2001
Information recording apparatus
HITACHI LTD15 citations92
US5886969AMar 23, 1999
High-density information recording/reproducing method
HITACHI LTD17 citations92
US5835469ANov 10, 1998
High-density information recording/reproducing method
HITACHI LTD24 citations92
US7054234B2May 30, 2006
Near-field high density magneto-optical recording head
HITACHI LTD17 citations84
US6608806B2Aug 19, 2003
Information recording method and apparatus with suppressed mark edge jitters
HITACHI LTD8 citations82
US7907490B2Mar 15, 2011
Information recording method and apparatus with suppressed mark edge jitters
HITACHI LTD2 citations74
US6288981B1Sep 11, 2001
Magneto-optical recording device using magneto-resistive head
HITACHI LTD8 citations74
US6125084ASep 26, 2000
Optical disk device using a recording medium structurally arranged to generate a recording clock
HITACHI LTD10 citations74
US6430132B1Aug 6, 2002
Information recording apparatus
HITACHI LTD7 citations73
US6404716B1Jun 11, 2002
Information recording apparatus
HITACHI LTD8 citations73
US7933169B2Apr 26, 2011
Optical head for near-field recording and reproducing device
HITACHI LTD4 citations63
US7688685B1Mar 30, 2010
Magneto-optical recording device capable of changing the shapes of heating areas
HITACHI LTD4 citations63
US6842415B2Jan 11, 2005
Information recording method and apparatus with suppressed mark edge jitters
HITACHI LTD1 citations63
US6560168B1May 6, 2003
Information recording/reproducing device
HITACHI LTD6 citations63
US6414912B1Jul 2, 2002
Optical disk device using a recording medium structurally arranged to generate a recording clock
HITACHI LTD3 citations63
US6205098B1Mar 20, 2001
Optical reproduction method and optical information apparatus
HITACHI LTD3 citations63
US6104734AAug 15, 2000
Solid state laser apparatus
HITACHI LTD2 citations62
US7911910B2Mar 22, 2011
Information recording method and apparatus with suppressed mark edge jitters
HITACHI LTD0 citations52
US7907491B2Mar 15, 2011
Information recording method and apparatus with suppressed mark edge jitters
HITACHI LTD0 citations52
US7852727B2Dec 14, 2010
Information recording method and apparatus with suppressed mark edge jitters
HITACHI LTD0 citations52
US7773483B2Aug 10, 2010
Information recording apparatus
HITACHI LTD1 citations52
US7684301B2Mar 23, 2010
Information recording method and apparatus with suppressed mark edge jitters
HITACHI LTD0 citations52
US7417933B2Aug 26, 2008
Information recording method and apparatus with suppressed mark edge jitters
HITACHI LTD0 citations52
US7042823B2May 9, 2006
Information recording method and apparatus with suppressed mark edge jitters
HITACHI LTD0 citations52
US6778471B1Aug 17, 2004
Magnetic recording device
HITACHI LTD1 citations52
US6614737B2Sep 2, 2003
Optical reproduction method and optical information device
HITACHI LTD1 citations52
US6545954B2Apr 8, 2003
Optical disk device using a recording medium structurally arranged to generate a recording clock
HITACHI LTD1 citations52
HITACHI GLOBAL STORAGE TECH
6 patentsUS7408731B2Aug 5, 2008
Track allocation method of disk drive
HITACHI GLOBAL STORAGE TECH47 citations93
US7446969B2Nov 4, 2008
Thermally assisted recording system
HITACHI GLOBAL STORAGE TECH6 citations73
US7747810B2Jun 29, 2010
Address assigning method, disk drive, and data writing method
HITACHI GLOBAL STORAGE TECH3 citations63
US7414806B2Aug 19, 2008
Information recording and reproducing apparatus with power supply voltage monitoring function
HITACHI GLOBAL STORAGE TECH2 citations63
US7406562B2Jul 29, 2008
Information read/write device
HITACHI GLOBAL STORAGE TECH2 citations63
US7813071B2Oct 12, 2010
Thermally assisted recording system
HITACHI GLOBAL STORAGE TECH3 citations62
SAGA HIDEKI
2 patentsUS8154823B2Apr 10, 2012
Information recording and reproducing apparatus, information recording and reproducing system, information processing apparatus and information reproducing apparatus
SAGA HIDEKI3 citations60
US8073142B2Dec 6, 2011
Information recording/reproducing device and information recording medium
SAGA HIDEKI3 citations60
KM BIOLOGICS CO LTD
1 patentShowing the top 50 of 55 patents by PatentIndex Score.