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.:
Date of Patent:
Jul. 23, 1985
Filed:
Aug. 25, 1983
Applicant:
Inventor:
James K Berger, Malibu, CA (US);
Assignee:
Pioneer Research, Inc., Santa Monica, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 77 ; 360 78 ;
Abstract
A portable servowriter system for writing a closed clock track and servo tracks on one or more of the fixed discs of a fixed disc magnetic disc drive without the aid of a mechanical head positioner; and which is also capable of writing a closed clock track and servo tracks (either on a dedicated disc surface or of the embedded form) on one or more of the discs of a rotating disc magnetic disc drive with the aid of a mechanical positioner.