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. 09, 1998
Filed:
Nov. 12, 1996
Applicant:
Inventors:
Noboru Akiyama, Tokyo-to, JP;
Katsumi Kameda, Tokyo-to, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
369291 ; 360133 ;
Abstract
A disk cartridge comprises a case including an upper and lower shell halves for accommodating a disk and an opening portion provided on each shell half, so as to be opened and closed by a shutter. Each shell half is formed by an injection molding of polycarbonate in which a mold having a single injection hole is used. The injection hole is formed in the mold, at a position opposed to a center of a groove in its longitudinal direction on a surface of the case for receiving a retaining plate to guide a front portion of a slide plate of the shutter. The injection hole has a diameter of about 1.5 mm in case of a 5-inch disk cartridge.