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. 01, 1991
Filed:
Feb. 16, 1990
Applicant:
Inventors:
Syuji Kiji, Ichigai, JP;
Keizou Takahashi, Ichigai, JP;
Assignee:
Kao Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360133 ; 360 9701 ;
Abstract
A magnetic disk cartridge is of the type in which a magnetic disk is rotatably disposed within a jacket. A hardened layer of an ultraviolet ray hardening resin is formed on an inner surface of the jacket which is contacted with a tip of a center pin of a magnetic disk driving apparatus passing through an opening portion of the magnetic disk. The hardness of the hardened layer is 1.times.10.sup.10 dyn/cm.sup.2 to 1.times.10.sup.5 dyn/cm.sup.2.
Kiji, Syuji. (1991). Hardened center pin contract area on magnetic disk cartridge (U.S. Patent No. 5053905). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5053905
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile