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:
Aug. 02, 1977
Filed:
Dec. 05, 1975
Applicant:
Inventors:
David Malcolm Hannon, Palo Alto, CA (US);
Hung Liang Hu, Sunnyvale, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
3401 / ;
Abstract
A device adapted for use in a low externally applied magnetic field, for example, 15 Oe, with a bubble lattice system is described. The device has a Y shaped channel in which bubbles are propagated between a bubble lattice column and either detector means or generator means. The magnetic pattern surrounding the Y shaped channel is controlled to yield a self biasing magnetic field which enables the device to retain the advantages of the close bubble packing in a bubble lattice for the detection and generation operations.