IP Library Granted Patent US 7,359,291
Granted Patent B2
US 7,359,291 · App. 10/912,391 · Granted Apr 15, 2008

Magneto-optical storage medium capable of recording plural rows of marks on each track

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Quick Facts
Patent No.
US 7,359,291
App. No.
10/912,391
Granted
Apr 15, 2008
Kind
B2
Abstract

An optical disk recording method of recording data on an optical disk by applying laser light to a track of the optical disk, includes the steps of a) driving a plurality of laser light sources in sequence in a time division manner, and applying a light flux to one track of the optical disk successively, and b) producing a plurality of rows of record marks in the one track.

Claims (8)

1. An optical recording medium on which data is recorded as a result of laser light being incident in a recording track and a magnetic field being generated therein,

wherein a first row of record marks is recorded in each track in such a manner that said record marks of said first row partially overlap one another along a direction parallel to said track,

wherein a second row of record marks is recorded in each track in such a manner that said record marks of said second row partially overlap one another along a direction parallel to said track, and

wherein said first row of record marks partially overlaps said second row of record marks.

2. The optical recording medium as claimed in claim 1 comprising a magneto-optical disk.

3. An optical recording medium having laser light applied to and a magnetic field generated to a recording track so as to have data recorded thereto, wherein a first row of record marks is formed in each track in such a manner that said record marks of said first row partially overlap one another along a direction parallel to said track, and

wherein a second row of record marks is formed in each track in such a manner that said record marks of said second row partially overlap one another along a direction parallel to said track, and

wherein said first row of record marks partially overlaps said second row of record marks.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 26, 2008
From: FUJITSU LIMITED
To: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Reel/Frame 021147/0661 →