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:
Jul. 13, 2004
Filed:
Sep. 18, 2001
Akio Mishima, Kanagawa, JP;
Kenjiro Watanabe, Tokyo, JP;
Sony Corporation, , JP;
Abstract
Recording/reproducing information signals to/from a recording medium appropriately even though the clearance from the signal recording surface of the recording medium to an optical head slider becomes significantly small. An optical head slider includes a sliding member which is floated and slides on a recording medium at the time of recording/reproducing signals to/from the recording medium , a hemispheric objective lens which is bonded to the sliding member , and a magnetic field generating means , which is mounted to the bottom of the sliding member which faces the recording medium . The sliding member is made of the same material as that of the optical lens , and a flat surface of the optical lens is bonded to the top surface of the sliding member