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:
Dec. 07, 1999
Filed:
Apr. 22, 1997
Applicant:
Inventors:
Takashi Harada, Nagahama, JP;
Chikakazu Kawaguchi, Nagahama, JP;
Assignees:
Mitsubishi Polyester Film Corporation, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428216 ; 428323 ; 428336 ; 428480 ; 4286 / ; 4286 / ;
Abstract
The present invention relates to a magnetic recording medium comprising: as a support film a biaxially oriented polyester film comprising