{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11250879","patent":{"patent_number":"US-11250879","title":"Heat-assisted magnetic recording (HAMR) head with optically reflective shield material adjacent the waveguide","assignee":null,"inventors":[],"filing_date":"2021-02-17T00:00:00.000Z","publication_date":"2022-02-15T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B","G11B","G11B"],"num_claims":20,"abstract":"A heat-assisted magnetic recording (HAMR) head has a gas-bearing slider that supports a a main magnetic pole, a near-field transducer (NFT) and a waveguide optically coupled to the NFT. Optically reflective side shields are located adjacent the cross-track sides of the waveguide at the slider's gas-bearing surface (GBS). The side shields may also be located adjacent the cross-track sides of the NFT and extend in the along-the-track direction to the write head's magnetic return pole. The cross-track gap width between a portion of the side shields adjacent the NFT at the GBS may be different from the cross-track gap width between a portion of the side shields adjacent the waveguide end at the GBS."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Heat-assisted magnetic recording (HAMR) head with optically reflective shield material adjacent the waveguide","description":"A heat-assisted magnetic recording (HAMR) head has a gas-bearing slider that supports a a main magnetic pole, a near-field transducer (NFT) and a waveguide optically coupled to the NFT. Optically refl","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11250879","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-11250879","citation_suggestion":"Patentable. \"Heat-assisted magnetic recording (HAMR) head with optically reflective shield material adjacent the waveguide\" (US-11250879). https://patentable.app/patents/US-11250879","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11250879","json":"https://patentable.app/api/llm-context/US-11250879","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T18:03:33.031Z"}