Inventor
NISHI NORIAKI
JP48 patents
⚠️ This page may combine multiple inventors who share the name “NISHI NORIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
42 patentsUS5748368AMay 5, 1998
Polarization optical element
SONY CORP108 citations98
US6529454B1Mar 4, 2003
Integrated optical component, optical pickup, and optical disc device
SONY CORP25 citations92
US7177259B2Feb 13, 2007
Optical head and optical recording medium drive device
SONY CORP36 citations91
US6700842B1Mar 2, 2004
Optical head, photodetector, optical information recording and reproducing apparatus and focus error detecting method
SONY CORP19 citations84
US7564745B2Jul 21, 2009
Optical pickup and optical disk apparatus
SONY CORP12 citations83
US7428201B2Sep 23, 2008
Optical disc device, optical pickup control method and optical disc discriminating method
SONY CORP8 citations74
US7173898B2Feb 6, 2007
Optical recording medium driving device
SONY CORP6 citations74
US6940789B2Sep 6, 2005
Optical pickup device that corrects the spot shape of reflected light beams
SONY CORP8 citations74
US9672859B2Jun 6, 2017
Optical medium reproduction apparatus and optical medium reproduction method
SONY CORP3 citations72
US5903529AMay 11, 1999
Optical pickup device and disk player apparatus
SONY CORP15 citations72
US7848211B2Dec 7, 2010
Objective lens apparatus, optical pickup apparatus, and optical disc driving apparatus
SONY CORP2 citations63
US7542398B2Jun 2, 2009
Aberration correcting element in the optical head of a recording and reproduction system using independent control of phase distribution and defocus pattern variables
SONY CORP4 citations63
US7403454B2Jul 22, 2008
Optical apparatus and aberration correcting element for correcting aberration by independent control of phase distribution and defocus pattern variables
SONY CORP5 citations63
US7319644B2Jan 15, 2008
Optical head, light-emitting/receiving device, and apparatus for recording/reproducing optical recording/recorded medium
SONY CORP2 citations63
US7196989B2Mar 27, 2007
Optical recording medium driving device
SONY CORP2 citations63
US7095687B2Aug 22, 2006
Optical pickup device that corrects the spot shape of reflected light beams
SONY CORP2 citations63
US6876622B2Apr 5, 2005
Anamorphic prism, optical head and optical recording/reproduction device
SONY CORP2 citations63
US6781931B2Aug 24, 2004
Optical information recording/reproducing apparatus and optical pickup apparatus
SONY CORP2 citations63
US6778474B2Aug 17, 2004
Optical pickup device, optical disc apparatus and method of detecting track discrimination signal
SONY CORP2 citations63
US6717897B2Apr 6, 2004
Optical pickup apparatus, optical disc apparatus, and track recognition signal detection method
SONY CORP2 citations63
US5982731ANov 9, 1999
Optical pickup and opto-magnetic signal reproducing apparatus
SONY CORP3 citations63
US5796701AAug 18, 1998
Optical pickup and opto-magnetic signal reproducing apparatus
SONY CORP2 citations63
US5732060AMar 24, 1998
Optical pickup and optical recording medium reproducing apparatus having a wire grid unit
SONY CORP2 citations63
US10373640B2Aug 6, 2019
Information processing device, information processing method, and program
SONY CORP1 citations62
US7483357B2Jan 27, 2009
Optical pickup and optical disc apparatus
SONY CORP2 citations62
US7280449B2Oct 9, 2007
Optical head and recording and/or reproducing apparatus
SONY CORP4 citations62
US8000189B2Aug 16, 2011
Optical pickup and optical disk device
SONY CORP3 citations61
US7619959B2Nov 17, 2009
Optical head, optical recording medium recording and/or reproducing apparatus and recording and/or reproducing method using the optical head
SONY CORP2 citations61
US7693025B2Apr 6, 2010
Optical pickup and optical information apparatus
SONY CORP2 citations60
US7636293B2Dec 22, 2009
Optical pickup device, recorder and/or reproducer
SONY CORP3 citations60
US7564767B2Jul 21, 2009
Optical recording medium driving device
SONY CORP0 citations52
US9767837B2Sep 19, 2017
Optical medium reproduction apparatus and optical medium reproduction method
SONY CORP1 citations51
US7852734B2Dec 14, 2010
Recording and playback apparatus and optical head
SONY CORP0 citations50
US7230903B2Jun 12, 2007
Recording and playback apparatus and optical head including a variable optical coupling efficiency device
SONY CORP1 citations50
US10134438B2Nov 20, 2018
Optical medium reproduction apparatus and method of reproducing optical medium
SONY CORP0 citations42
US9990952B2Jun 5, 2018
Optical medium reproducing device and optical medium reproducing method
SONY CORP0 citations42
US9843389B2Dec 12, 2017
Optical medium reproduction device and optical medium reproduction method
SONY CORP0 citations42
US10014023B2Jul 3, 2018
Optical medium reproducing apparatus, optical medium reproducing method, and optical medium
SONY CORP0 citations41
US10176838B2Jan 8, 2019
Optical disc device
SONY CORP0 citations40
US7675834B2Mar 9, 2010
Optical pickup for three different types of optical discs and recording and/or reproducing apparatus using same
SONY CORP0 citations40
US7889621B2Feb 15, 2011
Objective lens device, optical pickup device, optical-disc driving device and driving method of objective lens
SONY CORP0 citations39
US9847100B2Dec 19, 2017
Optical medium reproduction device and optical medium reproduction method
SONY CORP0 citations37