{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8493818","patent":{"patent_number":"US-8493818","title":"Thermally-assisted magnetic recording head, head gimbal assembly and magnetic recording device","assignee":null,"inventors":[],"filing_date":"2011-07-14T00:00:00.000Z","publication_date":"2013-07-23T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B"],"num_claims":11,"abstract":"A thermally-assisted magnetic recording head, includes: a pole that generates a writing magnetic field from an end surface that forms a portion of an air bearing surface opposing a magnetic recording medium; a waveguide through which light for exciting a surface plasmon propagates; a plasmon generator that couples to the light in a surface plasmon mode and generates near-field light from a near-field light generating portion on a near-field light generating end surface that forms the portion of the air bearing surface; and magnetic field focusing parts that are able to focus the writing magnetic field generated from the pole and that are disposed on both sides of the pole in a track width direction from a perspective of the air bearing surface side."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Thermally-assisted magnetic recording head, head gimbal assembly and magnetic recording device","description":"A thermally-assisted magnetic recording head, includes: a pole that generates a writing magnetic field from an end surface that forms a portion of an air bearing surface opposing a magnetic recording ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8493818","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-8493818","citation_suggestion":"Patentable. \"Thermally-assisted magnetic recording head, head gimbal assembly and magnetic recording device\" (US-8493818). https://patentable.app/patents/US-8493818","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8493818","json":"https://patentable.app/api/llm-context/US-8493818","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T18:57:36.405Z"}