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, 1999
Filed:
Oct. 24, 1997
Applicant:
Inventors:
Osamu Shimomura, Yokohama, JP;
Hiroyuki Ikeda, Yokohama, JP;
Assignee:
Verbatim Corporation, Charlotte, NC (US);
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360132 ;
Abstract
Disclosed is a belt driven tape cartridge capable of recording data at a higher density and a higher speed than in the conventional belt driven tape cartridges. The belt driven tape cartridge includes a flexible non-magnetic support, a magnetic recording layer formed on one surface of the flexible support and having a surface roughness of 10 nm or under, and a back coat layer formed on the other surface of the flexible support and having a surface roughness being above 100 nm but under 300 nm.