{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8472135","patent":{"patent_number":"US-8472135","title":"Microwave-assisted magnetic recording head having a current confinement structure","assignee":null,"inventors":[],"filing_date":"2012-03-09T00:00:00.000Z","publication_date":"2013-06-25T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B","G11B"],"num_claims":22,"abstract":"According to one embodiment, a high-frequency magnetic field-assisted magnetic recording head includes a main pole adapted for producing a writing magnetic field, a STO positioned above the main pole, a low-resistance layer positioned above the STO, and a current confinement layer positioned between the low-resistance layer and the main pole, wherein the main pole and the low-resistance layer are adapted for acting as poles for writing data to a magnetic medium in response to a flow of current to the STO positioned therebetween to generate a high-frequency magnetic field which overlaps with the writing magnetic field, and wherein the current confinement layer is adapted for controlling a current density and/or a current density distribution of the current flowing to the STO. Other magnetic recording heads and methods of production thereof are also described according to more embodiments."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Microwave-assisted magnetic recording head having a current confinement structure","description":"According to one embodiment, a high-frequency magnetic field-assisted magnetic recording head includes a main pole adapted for producing a writing magnetic field, a STO positioned above the main pole,","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8472135","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8472135","citation_suggestion":"Patentable. \"Microwave-assisted magnetic recording head having a current confinement structure\" (US-8472135). https://patentable.app/patents/US-8472135","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8472135","json":"https://patentable.app/api/llm-context/US-8472135","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T09:36:16.885Z"}