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. 10, 1986
Filed:
Oct. 13, 1983
Applicant:
Inventors:
Takateru Sato, Tokyo, JP;
Haruo Shiba, Tokyo, JP;
Assignee:
TDK Electronics Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
242199 ; 29416 ;
Abstract
A reel spring for a magnetic tape cassette is made of a resilient sheet metal into a diamond-like configuration in which a pair of portions which are asymmetrical with reference to two central axial line perpendicularly crossing and are symmetrical with reference to the crossing point are removed.