Inventor
SEKO SATORU
JP21 patents
⚠️ This page may combine multiple inventors who share the name “SEKO SATORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
19 patentsUS6144517ANov 7, 2000
Magnetic disk device and method of manufacturing same
SONY CORP50 citations96
US5907448AMay 25, 1999
Magnetic disk device and method of manufacturing same having convex recordings regions, concave guard bands, and impressed concavities and convexities representing control signals
SONY CORP52 citations96
US5905705AMay 18, 1999
Disc device having eccentricity measurement and clock correction
SONY CORP45 citations95
US5949602ASep 7, 1999
Method and apparatus for measuring head deviation and method and apparatus for recording/reproducing data
SONY CORP17 citations92
US5761165AJun 2, 1998
Disc device providing eccentricity compensation using a head radial position detecting circuit
SONY CORP19 citations92
US5677819AOct 14, 1997
Magnetic disk having improved servo area for protecting equal time interval characteristics and for preventing azimuth loss
SONY CORP21 citations92
US5615191AMar 25, 1997
Disc device having eccentricity measurement and clock correction
SONY CORP23 citations92
US5313342AMay 17, 1994
Analog/digital compatible reproducing system
SONY CORP27 citations92
US5196970AMar 23, 1993
Magnetic disc apparatus
SONY CORP53 citations92
US5260836ANov 9, 1993
Apparatus for reproducing digital and analog audio signals
SONY CORP23 citations90
US5065382ANov 12, 1991
Disc memory apparatus
SONY CORP21 citations82
US6144516ANov 7, 2000
Head displacement measuring method and apparatus and data recording/reproducing method and apparatus
SONY CORP13 citations74
US4757410AJul 12, 1988
Magnetoresistance effect for short and long wavelength recordings
SONY CORP15 citations74
US6025969AFeb 15, 2000
Method and apparatus for measuring head deviation and method and apparatus for recording/reproducing data
SONY CORP8 citations73
US5745455AApr 28, 1998
Disc device having eccentricity measurement and clock correction
SONY CORP10 citations73
US9466146B2Oct 11, 2016
Image processing apparatus, image processing method and data structure of image file
SONY CORP2 citations63
US5654842AAug 5, 1997
Head displacement measuring method and apparatus and data recording/reproducing method and apparatus
SONY CORP3 citations63
US7502297B2Mar 10, 2009
Hologram recording apparatus, hologram reproducing apparatus, hologram recording method, and hologram reproducing method
SONY CORP5 citations62
US8000205B2Aug 16, 2011
Recording apparatus and recording method
SONY CORP6 citations54