{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8542462","patent":{"patent_number":"US-8542462","title":"Perpendicular magnetic recording head having a non-magnetic film recessed from the air bearing surface for improved high-density magnetic recording","assignee":null,"inventors":[],"filing_date":"2010-06-30T00:00:00.000Z","publication_date":"2013-09-24T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B","G11B","G11B"],"num_claims":18,"abstract":"According to one embodiment, a perpendicular magnetic recording head includes a main magnetic pole having a trailing side and two lateral sides, a magnetic shield near the trailing side and both lateral sides of the main magnetic pole, the magnetic shield comprising: a first soft magnetic film with a relatively high saturation flux density positioned facing depthwise from a floating surface side thereof, a second soft magnetic film with a relatively low saturation flux density, and a first non-magnetic film. The head also includes a non-magnetic film interposed between the magnetic shield and the main magnetic pole, a first magnetic film magnetically coupled to the magnetic shield and the main magnetic pole on a side opposite a floating surface side thereof, and a coil surrounding a magnetic circuit, the magnetic circuit comprising the main magnetic pole and the first magnetic film. Other systems and methods are also described."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Perpendicular magnetic recording head having a non-magnetic film recessed from the air bearing surface for improved high-density magnetic recording","description":"According to one embodiment, a perpendicular magnetic recording head includes a main magnetic pole having a trailing side and two lateral sides, a magnetic shield near the trailing side and both later","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8542462","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-8542462","citation_suggestion":"Patentable. \"Perpendicular magnetic recording head having a non-magnetic film recessed from the air bearing surface for improved high-density magnetic recording\" (US-8542462). https://patentable.app/patents/US-8542462","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8542462","json":"https://patentable.app/api/llm-context/US-8542462","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T01:15:18.160Z"}