Process for thermoremanent duplication of magnetic tapes using t

Production of prerecorded tape cassettes

Pseudo raid implementation within a single disk drive

Quickly written servo-patterns for magnetic media including...

Quickly written servo-patterns for magnetic media including...

Random selection control system for recording tape cartridges

Recording and reproducing apparatus

Recording apparatus for cassette copying

Recording apparatus with copy control based on copies made and a

Recording of reproducing apparatus

Recording system for recording data on tape in a disk-recording

Recording/reproducing apparatus

Redundant servo pattern stamper

Reproduction of magnetic recordings

Rotary head type magnetic recording and reproducing device

Secure copy method and device for stored programs

Selective disk partitioning/duplicating method for duplication a

Self-raid system using hard disk drive having backup head...

Self-writing of servo patterns in disk drives

Simultaneous contact duplication of a plurality of magnetic copy