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:
Apr. 16, 2013
Filed:
Apr. 22, 2008
Kenji Narumi, Osaka, JP;
Masahiro Birukawa, Osaka, JP;
Kenji Narumi, Osaka, JP;
Masahiro Birukawa, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An apparatusaccording to the present invention is designed to read and/or write data from/on an information recording mediumusing near-field light. The apparatusincludes: a light sourcefor emitting laser light; a condensing sectionfor producing the near-field light based on the laser light; a detecting sectionfor detecting the relative positions of the condensing sectionand the information recording medium; and a control sectionfor controlling the position of the condensing section. In starting a gap servo operation, the control sectioncontrols the position of the condensing sectionso that the gap servo operation is started at a different location on the information recording mediumfrom any other location where the gap servo operation has ever been started.