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:
Jun. 16, 1998
Filed:
Feb. 14, 1997
Christopher C Williams, Rochester, NY (US);
Edward P Furlani, Lancaster, NY (US);
Charles E Brugger, Rochester, NY (US);
Bijan Barzideh, Rush, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A bias-field device for a magneto-optical system having a magneto-optical recording element which includes a conductive substrate and which moves through a magnetic field created by the bias-field device so that information is selectively recorded on or erased from the recording element, the device comprises: a rotatable magnet that rotates so that when the recording element rotates the conductive substrate creates a magnetic coupling with the magnet for causing the magnet to rotate; and an escapement mechanism that releases and latches the magnet for permitting the magnet to be selectively rotated.