Inventor
ISHIOKA HIDEAKI
JP14 patents
⚠️ This page may combine multiple inventors who share the name “ISHIOKA HIDEAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
11 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
US5617388AApr 1, 1997
Disc recording/reproducing apparatus which uses stored eccentricity data to maintain the read/write head at a constant radial position during a stand-by mode
SONY CORP27 citations92
US5615191AMar 25, 1997
Disc device having eccentricity measurement and clock correction
SONY CORP23 citations92
US6469861B2Oct 22, 2002
Head positioning apparatus and method therefor
SONY CORP14 citations83
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
US5166911ANov 24, 1992
Timer reservation recording system
SONY CORP19 citations71