EP0255044A1 — Bloch line memory device
Assigned to Hitachi Ltd · Expires 1988-02-03 · 38y expired
What this patent protects
A Bloch line memory device in which a stripe magnetic domain (1) is formed within a magnetic film for holding magnetic bubble domains, and Bloch line pairs (4a,4b; 5a, 5b) are stored as information carriers within a magnetic wall defining the magnetic domain. In order to write Bl…
USPTO Abstract
A Bloch line memory device in which a stripe magnetic domain (1) is formed within a magnetic film for holding magnetic bubble domains, and Bloch line pairs (4a,4b; 5a, 5b) are stored as information carriers within a magnetic wall defining the magnetic domain. In order to write Bloch lines into the magnetic wall of the stripe magnetic domain, current (I g ) is caused to flow through a single conductor (14) which is so disposed as to cross the mgnetic wall of the stripe magnetic domain. On this occasion, the current through the single conductor (14) is so directed as to generate an in-plane field opposite in sense to magnetization within the magnetic wall of the stripe magnetic domain (1).
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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