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:
Apr. 24, 1990
Filed:
May. 20, 1988
Takashi Kimura, Kawasaki, JP;
Kenichi Chihara, Yokohama, JP;
Masahiro Tomatsu, Yokohama, JP;
Kazunobu Inoue, Yokohama, JP;
Norio Yano, Yokosuka, JP;
Osamu Adachi, Yokosuka, JP;
Nippon Telegraph and Telehpone Corp., Tokyo, JP;
Fujitsu Limited, Kawasaki, JP;
Fujitsu Kasei Ltd., Yokohama, JP;
Abstract
A flexible magnetic diskette used for magnetically storing various information which is recorded and read by a magnetic head. The diskette includes a flexible plastic disk sheet uniformly coated with magnetic material and having a mount hole at its center, and a holder for securing the disk sheet over the periphery of the mount hole. The holder is also made of a plastic material for holding the flexible disk sheet over the peripheral portion of the mount hole via a double-sided adhesive ring. A core member is made of a magnetic metal having a high abrasive resistance and rigidly attached to the holder over at least a part of a surface of the holder, with which a drive unit is engaged.