Inventor
TOBITA MINORU
JP40 patents
⚠️ This page may combine multiple inventors who share the name “TOBITA MINORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
39 patentsUS6310851B1Oct 30, 2001
Frequency demodulating circuit, optical disk apparatus thereof and preformating device
SONY CORP55 citations96
US6215758B1Apr 10, 2001
Recording medium
SONY CORP62 citations96
US6128272AOct 3, 2000
Recording medium
SONY CORP84 citations96
US5592454AJan 7, 1997
Data reproducing apparatus which replaces vendor unique identification data in response to a reference error correction rate which is lower than that used for replacement of other data
SONY CORP38 citations96
US5363352ANov 8, 1994
Magneto-optic disk apparatus
SONY CORP52 citations96
US5978350ANov 2, 1999
Optical disc and optical disc driving device
SONY CORP19 citations93
US5781565AJul 14, 1998
Data recording/reproducing method, data reproducing apparatus and recording medium
SONY CORP21 citations93
US5721873AFeb 24, 1998
Data reproducing apparatus
SONY CORP18 citations93
US5675586AOct 7, 1997
Record medium, and method for recording to and reproducing from a record medium
SONY CORP20 citations93
US5469415ANov 21, 1995
Optical information recording or reproducing apparatus with asymmetry compensation
SONY CORP30 citations93
US6914544B2Jul 5, 2005
Modulation apparatus and method and DSV control bit generation method
SONY CORP14 citations92
US6385257B1May 7, 2002
Frequency demodulating circuit, optical disk apparatus thereof and preformating device
SONY CORP44 citations92
US6327240B1Dec 4, 2001
Optical disc and optical disc drive
SONY CORP20 citations92
US5761171AJun 2, 1998
Generating data detecting threshold levels from reference patterns recorded in an optical disk, such as a magneto-optical disk
SONY CORP21 citations92
US5506827AApr 9, 1996
Digital data reproducing apparatus
SONY CORP35 citations92
US5151905ASep 29, 1992
Data recording method
SONY CORP29 citations92
US6950042B2Sep 27, 2005
Modulating apparatus and method, and DSV control bit producing method
SONY CORP14 citations84
US5812512ASep 22, 1998
Data reproducing apparatus which prohibits illegitimate access to data using an internal ID
SONY CORP16 citations82
US5295130AMar 15, 1994
Apparatus and method for signal reproduction
SONY CORP18 citations82
US6982660B2Jan 3, 2006
Modulation apparatus and method, and DSV-control-bit generating method
SONY CORP8 citations74
US6965329B2Nov 15, 2005
Modulation apparatus and method, and DSV-control-bit generating method
SONY CORP4 citations74
US6765860B2Jul 20, 2004
Optical disc and optical drive
SONY CORP6 citations74
US6320839B1Nov 20, 2001
Optical information recording medium, optical information recording method and optical information recording apparatus
SONY CORP14 citations74
US6282162B1Aug 28, 2001
Optical disc and optical disc driving device
SONY CORP12 citations74
US5469420ANov 21, 1995
Multi-value recorded data detecting method
SONY CORP16 citations74
US6678223B2Jan 13, 2004
Frequency demodulating circuit, optical disk apparatus thereof and preformating device
SONY CORP6 citations73
US7256718B2Aug 14, 2007
Modulation apparatus and method
SONY CORP4 citations63
US6958713B2Oct 25, 2005
Modulation apparatus and method, and DSV-control-bit generating method
SONY CORP2 citations63
US6751166B2Jun 15, 2004
Phase error detection method for magnetic wall displacement type of magneto-optical recording device
SONY CORP2 citations63
US5654948AAug 5, 1997
Disc apparatus for recording/reproducing with zone constant angular velocity
SONY CORP5 citations63
US5136564AAug 4, 1992
Pit pattern detecting apparatus and method
SONY CORP5 citations63
US7224656B2May 29, 2007
Disc detection device and associated method
SONY CORP3 citations62
US7626912B2Dec 1, 2009
Optical recording medium, reproduction apparatus and reproduction method
SONY CORP3 citations61
US7355929B2Apr 8, 2008
Magneto-optical disk and recording and/or reproducing method and recording and/or reproducing apparatus using the magneto-optical disk
SONY CORP4 citations61
US6292451B1Sep 18, 2001
Optical disc and optical disc driving device
SONY CORP3 citations59
US7554900B2Jun 30, 2009
Disc-shaped recording medium, method and apparatus for manufacturing same and data recording method
SONY CORP0 citations52
US7002894B2Feb 21, 2006
Disc-shaped recording medium, manufacturing method and manufacturing device thereof, and data recording method
SONY CORP1 citations52
US7263708B2Aug 28, 2007
Cartridge type recording medium, associated apparatus and methodology of disc detection
SONY CORP0 citations51
US7110328B2Sep 19, 2006
Recording and reproducing apparatus for recording and reproducing information to and from a magneto-optical storage medium
SONY CORP0 citations41