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:
Aug. 14, 1984

Filed:

Jan. 26, 1983
Applicant:
Inventors:

Toshihiko Ishida, Tokyo, JP;

Haruo Shiba, Tokyo, JP;

Takateru Sato, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360132 ; 242199 ;
Abstract

A magnetic tape cassette provided with a separating sheet interposed between a magnetic recording tape and a half casing. The separating sheet is provided with first protrusions projecting toward the tape and second protrusions projecting toward the half casing.


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