US2005122625A1PendingUtilityA1

Disk-shaped magnetic recording medium

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Assignee: FUJI PHOTO FILM CO LTDPriority: Nov 26, 2001Filed: Jan 19, 2005Published: Jun 9, 2005
Est. expiryNov 26, 2021(expired)· nominal 20-yr term from priority
Inventors:Yasushi Endo
G11B 23/0021G11B 5/825Y10T428/219
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PatentIndex Score
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Claims

Abstract

A disk-shaped magnetic recording medium for use in a small magnetic disk cartridge, comprising a flexible disk-shaped magnetic sheet, and a rigid annular member attached to the outer circumferential edge portion of one side of the magnetic sheet.

Claims

exact text as granted — not AI-modified
1 - 8 . (canceled)  
     
     
         9 . A method of forming a disk-shaped magnetic recording medium for use in a small magnetic disk cartridge, comprising the steps of: 
 preparing a flexible disk-shaped magnetic sheet;    rotating said magnetic sheet; and    forming a rigid annular member on a circumferential edge portion of said magnetic sheet by hardening liquid resin formed on said circumferential edge portion with ultraviolet rays while rotating said magnetic sheet.    
     
     
         10 . The method as set forth in  claim 9 , wherein said liquid resin is formed on said circumferential edge portion by being dropping on said circumferential edge portion.  
     
     
         11 . The method as set forth in  claim 9 , wherein said liquid resin is formed on said circumferential edge portion by being applied to said circumferential edge portion.

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