The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8085648 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 27, 2011

Filed:

Jul. 02, 2009
Applicants:

Kyoung-won NA, Seoul, KR;

Jin-seung Sohn, Seoul, KR;

Sang-chul Sul, Suwon-si, KR;

Inventors:

Kyoung-won Na, Seoul, KR;

Jin-seung Sohn, Seoul, KR;

Sang-chul Sul, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24 (2006.01); G11B 5/86 (2006.01);
U.S. Cl.
CPC ...
Abstract

The servo master includes a membrane having a first surface and a second surface; a plurality of stamp areas which are disposed on the first surface, each of the plurality of stamp areas including a magnetic layer patterned with servo patterns to be magnetically transferred to a magnetic recording medium; and a pressing members which are disposed on the second surface, each of the plurality of pressing members being operable to apply pressure to a corresponding stamp area of the plurality of stamp areas.


Find Patent Forward Citations

Na, Kyoung-won. (2011). Servo master magnetically transferring servo patterns to magnetic recording medium, and magnetic transfer method using the servo master (U.S. Patent No. 8085648). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8085648

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