Oracle America, Inc.

Quantum Corporation

Ritz Mingho Lau

Lee V Jaderborg

An electrical lapping guide for a magnetic tape head is provided with a resistive transverse stripe with a longitudinal height affixed to a substrate. A pair of leads extend from the stripe with a notch formed therebetween. The notch has a height corresponding to a lapping target limit for associated tape head elements. During material removal of the transverse stripe and the tape head elements, resistance is measured across the stripe and a dramatic increase in resistance indicates that the material removal has reached the notch. A method for accurately machining a magnetic tape head is provided by depositing tape head elements and a resistive stripe with a notch on a substrate. Resistance is measured across leads on either side of the notch for discontinuing machining of the stripe due to a dramatic increase in resistance.

Process for accurately machining a magnetic tape head

Devices, methods and systems for cleaning a tape media within a tape cartridge are described, particularly removable cleaning device inserts, and cartridges adapted to use cleaning device inserts. Removable cleaning device inserts generally include a holdfast surface and one or more tape cleaners comprising a cleaning surface. A holdfast surface may be used to secure the cleaning device insert within a tape cartridge. Tape cartridges for use with a cleaning device insert may include a housing at least partly enclosing a tape pathway, and an accessway through the housing for loading a cleaning device insert into the tape pathway within the tape cartridge housing. A tape media may be cleaned by inserting a cleaning device insert having a tape cleaner with a cleaning surface into a tape cartridge and contacting the cleaning surface to a tape traveling along the tape pathway.

Growing community of inventors

Superior, CO, United States of America

Ritz Mingho Lau