Patent ID: 6289653
Filing Date: 2001-09-18
Classification: G03B,Y10S,Y10T

Abstract:
A method of manufacturing a photographic film cassette having a cassette shell, a spool rotatably mounted in said cassette shell, and an unexposed photographic filmstrip wound around said spool, said photographic filmstrip having a magnetic recording layer formed thereon, said method comprising the steps of:transporting said photographic filmstrip toward said spool along a film transport path intermittently at predetermined intervals;perforating said photographic filmstrip with a perforator to form perforations on the filmstrip during intermittent stopping of the filmstrip in said transporting step;recording first data at a first position on said magnetic recording layer with a first magnetic recording head when the filmstrip is continued to be transported after stopping for the perforation step;cutting said photographic filmstrip with a cutter into a predetermined length during intermittent stopping of the filmstrip; andrecording second data on said magnetic recording layer at a second position with a second magnetic recording head when the filmstrip is continued to be transported after stopping for the cutting step; and thereafterloading said photographic filmstrip in said cassette shell;such that a location of said first data and said second data which are recorded on said filmstrip by said first magnetic recording head and said second magnetic recording head, respectively, remains unchanged with respect to said perforations.