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:
Oct. 05, 1993
Filed:
Feb. 18, 1992
Masatoshi Okamura, Saku, JP;
Takashi Namioka, Saku, JP;
TDK Corporation, , JP;
Abstract
A tape cassette capable of ensuring smooth and positive traveling of a magnetic tape in a casing. Sheet elements each are formed with a pair of apertures aligned with hub holes and a strip-like projection projecting toward the inner surface of a casing, which is formed on each of the upper and lower inner surfaces thereof with a land of a width larger than the diameter of the hub hole in a manner to face the projection of the sheet element. The casing is also formed on each of the upper and lower inner surfaces thereof with a pair of recesses in a manner to interpose the land therebetween and the sheet elements each have a pair of end edges extending in the longitudinal direction thereof, which are arranged so as to overhang the recesses of the casing.