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:
May. 14, 1985
Filed:
Jun. 29, 1983
LuVerne R Peterson, San Diego, CA (US);
Burroughs Corporation, Detroit, MI (US);
Abstract
A magnetic bubble memory (of the type that has a magnetic film, a plurality of magnetic bubbles in the film, and an insulating layer over the film) includes an improved electromagnetic structure on the insulating layer for stretching the bubbles to aid in their detection; which structure is comprised of a plurality of elongated permalloy elements on the insulator and arranged in spaced apart rows with only one of the elements per row; each element has a pattern that is X-shaped which repeats along the element in the direction of elongation; the X in the pattern has two short legs and two long legs; and the pattern is repeated such that the short legs of one X join with the long legs of the next X.