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.
Patent No.:
Date of Patent:
May. 04, 2010
Filed:
Nov. 19, 2007
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;
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;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, there is to provide a servo write method of writing a multi-spiral servo pattern to a disk medium, the method including a process of writing a spiral index pattern to the disk medium, the spiral index pattern being a spiral pattern including the same region as that of a servo burst signal included in the spiral servo pattern and a region that allows the spiral index pattern to be distinguished from the spiral servo pattern, the spiral index pattern being used as a reference for a write start.