The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 09, 2010

Filed:

Nov. 28, 2007
Applicants:

Seiji Mizukoshi, Nishitama-gun, JP;

Masahide Yatsu, Akishima, JP;

Hideo Sado, Ome, JP;

Katsuki Ueda, Tachikawa, JP;

Toshitaka Matsunaga, Ome, JP;

Shinichirou Kouhara, Hino, JP;

Shouji Nakajima, Kodaira, JP;

Inventors:

Seiji Mizukoshi, Nishitama-gun, JP;

Masahide Yatsu, Akishima, JP;

Hideo Sado, Ome, JP;

Katsuki Ueda, Tachikawa, JP;

Toshitaka Matsunaga, Ome, JP;

Shinichirou Kouhara, Hino, JP;

Shouji Nakajima, Kodaira, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 20/12 (2006.01); G11B 21/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

According to one embodiment, there is provided a servo write method of writing specified servo patterns to a disk medium on the basis of a spiral servo pattern recorded on the disk medium, wherein when the spiral servo pattern is read using a head, position detecting data used to detect a radial position on the disk medium on the basis of data recorded in a sync mark region.


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