Leslie M Milner

US Patent:

6353590, Mar 5, 2002

Filed:

Nov 1, 1999

Appl. No.:

09/431746

Inventors:

James K. Knudsen - Woodbury MN
Arne B. Boberg - Shoreview MN
Robert S. Jackson - Little Canada MN
Leslie M. Milner - Circle Pines MN
Brian K. Parliament - Woodbury MN
Daniel P. Stubbs - Marine on St. Croix MN
Mark P. Lubratt - White Bear Lake MN
Israel Tzur - Longmont CO
David M. Perry - Lafayette CO

Assignee:

Imation Corp. - Oakdale MN

International Classification:

G11B 1560

US Classification:

369263, 369115, 21912168

Abstract:

The present invention provides methods and apparatus for stabilizing data storage media during laser servowriting of optical servo tracks on the media. The apparatus includes a spindle for rotating the media during servowriting, a fixed media platform, and a media support for stabilizing the vertical position of the media during servowriting. The media support may include channels to reduce or control the formation of an air bearing in the area of servowriting to stabilize the vertical positioning of the media. The media support may also include a vacuum slot for drawing a vacuum through the channels.

US Patent:

58606122, Jan 19, 1999

Filed:

Feb 4, 1997

Appl. No.:

8/795331

Inventors:

John F. Runyon - St. Paul MN
Robert A. Muehlhausen - Stillwater MN
Charles L. Dennis - Lake Elmo MN
Leslie M. Milner - Circle Pines MN
Mark D. Green - Inver Grove Heights MN
Keith T. Johnson - Camarillo CA

Assignee:

Imation Corp. - Oakdale MN

International Classification:

G11B 23087

US Classification:

2423461

Abstract:

A guidance system for tape in a tape cartridge includes two corner guides and an optional third guide. The two corner guides may be angled or tapered to produce a bow or slope in the tape, and to steer the tape. If provided, the third guide is readily adjustable during manufacture to an exact predetermined distance from the two corner guides, thereby avoiding problems due to build-up of manufacturing tolerances. A method of constructing such a system provides an interference fit ferrule on a pin or a nail-like pin as the third guide, such that the position of the ferrule or nail head of the pin can be adjusted to the exact position desired during manufacture.