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:
Nov. 02, 1993
Filed:
Feb. 20, 1991
Takehiko Sekine, Hachioji, JP;
Mitsuru Watanabe, Hachioji, JP;
Konica Corporation, Tokyo, JP;
Abstract
Photo-magnetic disk driver for recording, playing back, or erasing information on a photo-magnetic disk in a cartridge. The disk driver has a driver to rotate the photo-magnetic disk at a driving position, a generator of a magnetic field having a direction perpendicular to a surface of the photo-magnetic disk, a laser beam generator to irradiate a laser beam onto the disk surface so that the temperature of the irradiated portion of the surface is increased, a disk receiver of the cartridge. This disk driver includes a loading path to the driving position, and a support for moving the generator between a first position where the generator is inserted into the loading path, and a second position where the generator is outside of the loading path, wherein the generator is at the first position before the cartridge is received by the receiver.