{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9659587","patent":{"patent_number":"US-9659587","title":"Magnetic head having a reader overcoat with DLC and a recessed writer overcoat without DLC","assignee":null,"inventors":[],"filing_date":"2015-11-06T00:00:00.000Z","publication_date":"2017-05-23T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B"],"num_claims":26,"abstract":"A magnetic head includes a slider defining an air bearing surface (ABS) and having a trailing face approximately orthogonal to the ABS. A transducer is disposed on the trailing face and includes a reader and a writer. The writer comprises a non-ferromagnetic writer encapsulate material, and includes a ferromagnetic write pole embedded in the non-ferromagnetic writer encapsulate material. The reader comprises a non-ferromagnetic reader encapsulate material, and includes a magnetoresistive sensor stack embedded in the non-ferromagnetic reader encapsulate material. The magnetic head further includes a novel dual overcoat having a writer overcoat material disposed on the writer, and a reader overcoat material disposed on the reader. The reader overcoat material comprises diamond-like carbon (DLC), and the writer overcoat material does not comprise DLC. An example method for fabricating the novel dual overcoat is also disclosed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Magnetic head having a reader overcoat with DLC and a recessed writer overcoat without DLC","description":"A magnetic head includes a slider defining an air bearing surface (ABS) and having a trailing face approximately orthogonal to the ABS. A transducer is disposed on the trailing face and includes a rea","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9659587","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-9659587","citation_suggestion":"Patentable. \"Magnetic head having a reader overcoat with DLC and a recessed writer overcoat without DLC\" (US-9659587). https://patentable.app/patents/US-9659587","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9659587","json":"https://patentable.app/api/llm-context/US-9659587","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:56:44.594Z"}