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. 06, 1977
Filed:
Oct. 06, 1975
Applicant:
Inventors:
Yoshiaki Hisagen, Sendai, JA;
Kazuo Hoshi, Iwanuma, JA;
Assignee:
Sony Corporation, Tokyo, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360134 ; 428480 ; 428539 ; 428900 ;
Abstract
A leader tape for a magnetic recording tape having a coating layer consisting of a binder and a white pigment. A surface resistivity of the coating layer is less than 10.sup.12 ohms/sq. and a transmissivity of the leader tape is more than 20 percent.