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.

Date of Patent:
Mar. 21, 2006

Filed:

Jan. 17, 2002
Applicant:

Tomoyuki Miyake, Nara, JP;

Inventor:

Tomoyuki Miyake, Nara, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 33/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A disk cartridgefor a larger diameter, a disk cartridgefor a medium disk diameter, and a disk cartridgefor a smaller diameter contains a magneto-optical disk for a larger diameter, a magneto-optical disk for a medium diameter, and a magneto-optical disk for a smaller diameter having different disk diameters, respectively. Each cartridge: the disk cartridgefor a larger diameter and the disk cartridgefor a medium disk diameter, is provided with at least one sensor holeto recognize a relation in size of a disk diameter with other disk cartridge having a different disk diameter. This makes it possible to provide a disk cartridge and a disk recording and reproducing apparatus which can realize recording and reproducing with high reliability by a single apparatus with respect to disk cartridges, each of which contains a disk-shaped recording medium having a different diameter.


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