Magnetic tape processing

US9336808B2 · kind B2 · utility

Assignee

• Hewlett Packard Enterprise Development LP · US

Inventors

• Mike Alan Holmberg · Boise, US
• Geoff Spratt · Meridian, US
• Brian Brong · Oakdale, US
• Mike Sharrock · Boise, US
• Steven L. Brittenham · Boise, US
• Scott Swanbeck · Nampa, US
• Eric Petersen · Phoenix, US
• Lawrence A. Hansen · Boise, US
• Paul W. Poorman · Meridian, US

Key dates

• Filing date: Jan 31, 2013
• Grant date: May 10, 2016
• Expiry date: Jan 31, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G11B2005/0021
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A system including a magnetic tape processing system that includes a read/write head to write to a top surface of a magnetic tape. The read/write head provides a write head field gradient of at least 40 Oersteds per nanometer at the top surface of the magnetic tape. The magnetic tape processing system and the read/write head provide a track density of greater than 8000 tracks per inch, a bit density of greater than 440 kilo-bits per inch, and an aspect ratio of less than 70.