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:
May. 30, 1995
Filed:
Jan. 25, 1993
Yoshiharu Katsuta, Takatsuki, JP;
Hitachi Maxell, Ltd., Osaka, JP;
Abstract
An audio tape cassette comprising a cassette shell, a pair of hubs which is rotatably positioned in the cassette shell, a magnetic tape which is wound around the hubs with its magnetic layer facing outward, guiding parts which are positioned in the cassette shell and guide the running direction of the magnetic tape, and a felt pad which is positioned between the hubs at the front of the shell, which contacts a back of the magnetic tape to press the magnetic tape to a magnetic head, wherein the magnetic tape has a back coating layer which comprises a pigment and a binder having a coefficient of friction not larger than 0.4 against the felt pad which has good runnability, and wherein generation of wow, flutter and modulation noise is apparent and edge damage of the magnetic tape is prevented.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile