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:
Sep. 17, 2002
Filed:
Feb. 03, 2000
Applicant:
Inventors:
Kazuo Sasaki, Miyagi, JP;
Hitomi Chiba, Miyagi, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 2/302 ;
U.S. Cl.
CPC ...
G11B 2/302 ;
Abstract
In a tape cassette, an erroneous erasing preventive or write protect device includes a plurality of discriminating detectable portions provided in a cassette body or casing and a discriminating plug for opening and closing at least one of the discriminating detectable portions. The discriminating detectable portions are formed collectively in a single indented part with no separating walls.